From 405d967dc70002991f8fc35c20e0d3cbc7614f63 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 24 Jun 2009 15:13:38 +0900 Subject: linker script: throw away .discard section x86 throws away .discard section but no other archs do. Also, .discard is not thrown away while linking modules. Make every arch and module linking throw it away. This will be used to define dummy variables for percpu declarations and definitions. This patch is based on Ivan Kokshaysky's alpha percpu patch. [ Impact: always throw away everything in .discard ] Signed-off-by: Tejun Heo Cc: Ivan Kokshaysky Cc: Richard Henderson Cc: Russell King Cc: Haavard Skinnemoen Cc: Bryan Wu Cc: Mikael Starvik Cc: Jesper Nilsson Cc: David Howells Cc: Yoshinori Sato Cc: Tony Luck Cc: Hirokazu Takata Cc: Geert Uytterhoeven Cc: Michal Simek Cc: Ralf Baechle Cc: Kyle McMartin Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Paul Mundt Cc: David S. Miller Cc: Jeff Dike Cc: Chris Zankel Cc: Rusty Russell Cc: Ingo Molnar --- arch/avr32/kernel/vmlinux.lds.S | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/avr32') diff --git a/arch/avr32/kernel/vmlinux.lds.S b/arch/avr32/kernel/vmlinux.lds.S index 7910d41eb886..b8324608ec0c 100644 --- a/arch/avr32/kernel/vmlinux.lds.S +++ b/arch/avr32/kernel/vmlinux.lds.S @@ -131,6 +131,7 @@ SECTIONS /DISCARD/ : { EXIT_DATA *(.exitcall.exit) + *(.discard) } DWARF_DEBUG -- cgit v1.2.3 From 023bf6f1b8bf58dc4da7f0dc1cf4787b0d5297c1 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 9 Jul 2009 11:27:40 +0900 Subject: linker script: unify usage of discard definition Discarded sections in different archs share some commonality but have considerable differences. This led to linker script for each arch implementing its own /DISCARD/ definition, which makes maintaining tedious and adding new entries error-prone. This patch makes all linker scripts to move discard definitions to the end of the linker script and use the common DISCARDS macro. As ld uses the first matching section definition, archs can include default discarded sections by including them earlier in the linker script. ia64 is notable because it first throws away some ia64 specific subsections and then include the rest of the sections into the final image, so those sections must be discarded before the inclusion. defconfig compile tested for x86, x86-64, powerpc, powerpc64, ia64, alpha, sparc, sparc64 and s390. Michal Simek tested microblaze. Signed-off-by: Tejun Heo Acked-by: Paul Mundt Acked-by: Mike Frysinger Tested-by: Michal Simek Cc: linux-arch@vger.kernel.org Cc: Michal Simek Cc: microblaze-uclinux@itee.uq.edu.au Cc: Sam Ravnborg Cc: Tony Luck --- arch/alpha/kernel/vmlinux.lds.S | 10 ++-------- arch/avr32/kernel/vmlinux.lds.S | 10 +++------- arch/blackfin/kernel/vmlinux.lds.S | 6 +----- arch/cris/kernel/vmlinux.lds.S | 10 ++-------- arch/frv/kernel/vmlinux.lds.S | 2 +- arch/h8300/kernel/vmlinux.lds.S | 6 ++---- arch/ia64/kernel/vmlinux.lds.S | 17 ++++++++--------- arch/m32r/kernel/vmlinux.lds.S | 11 +++-------- arch/m68k/kernel/vmlinux-std.lds | 11 +++-------- arch/m68k/kernel/vmlinux-sun3.lds | 10 ++-------- arch/m68knommu/kernel/vmlinux.lds.S | 8 +------- arch/microblaze/kernel/vmlinux.lds.S | 2 +- arch/mips/kernel/vmlinux.lds.S | 22 ++++++++++------------ arch/mn10300/kernel/vmlinux.lds.S | 9 +++------ arch/parisc/kernel/vmlinux.lds.S | 9 ++++----- arch/powerpc/kernel/vmlinux.lds.S | 10 +++------- arch/s390/kernel/vmlinux.lds.S | 10 +++------- arch/sh/kernel/vmlinux.lds.S | 11 ++++------- arch/sparc/kernel/vmlinux.lds.S | 9 ++------- arch/um/include/asm/common.lds.S | 5 ----- arch/um/kernel/dyn.lds.S | 2 +- arch/um/kernel/uml.lds.S | 2 +- arch/x86/kernel/vmlinux.lds.S | 11 ++++------- arch/xtensa/kernel/vmlinux.lds.S | 14 ++++---------- include/asm-generic/vmlinux.lds.h | 18 ++++++++++++------ 25 files changed, 80 insertions(+), 155 deletions(-) (limited to 'arch/avr32') diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S index 75fe1d6877e9..6dc03c35caa0 100644 --- a/arch/alpha/kernel/vmlinux.lds.S +++ b/arch/alpha/kernel/vmlinux.lds.S @@ -134,14 +134,6 @@ SECTIONS __bss_stop = .; _end = .; - /* Sections to be discarded */ - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - .mdebug 0 : { *(.mdebug) } @@ -151,4 +143,6 @@ SECTIONS STABS_DEBUG DWARF_DEBUG + + DISCARDS } diff --git a/arch/avr32/kernel/vmlinux.lds.S b/arch/avr32/kernel/vmlinux.lds.S index b8324608ec0c..c4b56654349a 100644 --- a/arch/avr32/kernel/vmlinux.lds.S +++ b/arch/avr32/kernel/vmlinux.lds.S @@ -124,15 +124,11 @@ SECTIONS _end = .; } + DWARF_DEBUG + /* When something in the kernel is NOT compiled as a module, the module * cleanup code and data are put into these segments. Both can then be * thrown away, as cleanup code is never called unless it's a module. */ - /DISCARD/ : { - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - - DWARF_DEBUG + DISCARDS } diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S index 6e8eabd8f0a6..d7ffe299b979 100644 --- a/arch/blackfin/kernel/vmlinux.lds.S +++ b/arch/blackfin/kernel/vmlinux.lds.S @@ -277,9 +277,5 @@ SECTIONS DWARF_DEBUG - /DISCARD/ : - { - *(.exitcall.exit) - *(.discard) - } + DISCARDS } diff --git a/arch/cris/kernel/vmlinux.lds.S b/arch/cris/kernel/vmlinux.lds.S index a3175ebb38cc..6c81836b9229 100644 --- a/arch/cris/kernel/vmlinux.lds.S +++ b/arch/cris/kernel/vmlinux.lds.S @@ -140,13 +140,7 @@ SECTIONS _end = .; __end = .; - /* Sections to be discarded */ - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - dram_end = dram_start + (CONFIG_ETRAX_DRAM_SIZE - __CONFIG_ETRAX_VMEM_SIZE)*1024*1024; + + DISCARDS } diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S index 64b5a5e4d35e..7dbf41f68b52 100644 --- a/arch/frv/kernel/vmlinux.lds.S +++ b/arch/frv/kernel/vmlinux.lds.S @@ -178,7 +178,7 @@ SECTIONS .comment 0 : { *(.comment) } - /DISCARD/ : { *(.discard) } + DISCARDS } __kernel_image_size_no_bss = __bss_start - __kernel_image_start; diff --git a/arch/h8300/kernel/vmlinux.lds.S b/arch/h8300/kernel/vmlinux.lds.S index 03d6c0df33db..662b02ecb86e 100644 --- a/arch/h8300/kernel/vmlinux.lds.S +++ b/arch/h8300/kernel/vmlinux.lds.S @@ -152,10 +152,6 @@ SECTIONS __end = . ; __ramstart = .; } - /DISCARD/ : { - *(.exitcall.exit) - *(.discard) - } .romfs : { *(.romfs*) @@ -166,4 +162,6 @@ SECTIONS COMMAND_START = . - 0x200 ; __ramend = . ; } + + DISCARDS } diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S index 13d958975874..eb4214d1c5af 100644 --- a/arch/ia64/kernel/vmlinux.lds.S +++ b/arch/ia64/kernel/vmlinux.lds.S @@ -24,15 +24,14 @@ PHDRS { } SECTIONS { - /* Sections to be discarded */ + /* unwind exit sections must be discarded before the rest of the + sections get included. */ /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - *(.discard) *(.IA_64.unwind.exit.text) *(.IA_64.unwind_info.exit.text) - } + *(.comment) + *(.note) + } v = PAGE_OFFSET; /* this symbol is here to make debugging easier... */ phys_start = _start - LOAD_OFFSET; @@ -317,7 +316,7 @@ SECTIONS .debug_funcnames 0 : { *(.debug_funcnames) } .debug_typenames 0 : { *(.debug_typenames) } .debug_varnames 0 : { *(.debug_varnames) } - /* These must appear regardless of . */ - /DISCARD/ : { *(.comment) } - /DISCARD/ : { *(.note) } + + /* Default discards */ + DISCARDS } diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S index 480a49944cfd..de5e21cca6a5 100644 --- a/arch/m32r/kernel/vmlinux.lds.S +++ b/arch/m32r/kernel/vmlinux.lds.S @@ -120,14 +120,6 @@ SECTIONS _end = . ; - /* Sections to be discarded */ - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - /* Stabs debugging sections. */ .stab 0 : { *(.stab) } .stabstr 0 : { *(.stabstr) } @@ -136,4 +128,7 @@ SECTIONS .stab.index 0 : { *(.stab.index) } .stab.indexstr 0 : { *(.stab.indexstr) } .comment 0 : { *(.comment) } + + /* Sections to be discarded */ + DISCARDS } diff --git a/arch/m68k/kernel/vmlinux-std.lds b/arch/m68k/kernel/vmlinux-std.lds index 905a797ada93..47eac19e8f61 100644 --- a/arch/m68k/kernel/vmlinux-std.lds +++ b/arch/m68k/kernel/vmlinux-std.lds @@ -82,14 +82,6 @@ SECTIONS _end = . ; - /* Sections to be discarded */ - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - /* Stabs debugging sections. */ .stab 0 : { *(.stab) } .stabstr 0 : { *(.stabstr) } @@ -98,4 +90,7 @@ SECTIONS .stab.index 0 : { *(.stab.index) } .stab.indexstr 0 : { *(.stab.indexstr) } .comment 0 : { *(.comment) } + + /* Sections to be discarded */ + DISCARDS } diff --git a/arch/m68k/kernel/vmlinux-sun3.lds b/arch/m68k/kernel/vmlinux-sun3.lds index 47d04be322aa..03efaf04d7d7 100644 --- a/arch/m68k/kernel/vmlinux-sun3.lds +++ b/arch/m68k/kernel/vmlinux-sun3.lds @@ -77,14 +77,6 @@ __init_begin = .; _end = . ; - /* Sections to be discarded */ - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - .crap : { /* Stabs debugging sections. */ *(.stab) @@ -97,4 +89,6 @@ __init_begin = .; *(.note) } + /* Sections to be discarded */ + DISCARDS } diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S index 68111a61a77f..2736a5e309c0 100644 --- a/arch/m68knommu/kernel/vmlinux.lds.S +++ b/arch/m68knommu/kernel/vmlinux.lds.S @@ -184,13 +184,6 @@ SECTIONS { __init_end = .; } > INIT - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - .bss : { . = ALIGN(4); _sbss = . ; @@ -201,5 +194,6 @@ SECTIONS { _end = . ; } > BSS + DISCARDS } diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S index 81bebdcb18fe..ec5fa91a48d8 100644 --- a/arch/microblaze/kernel/vmlinux.lds.S +++ b/arch/microblaze/kernel/vmlinux.lds.S @@ -163,5 +163,5 @@ SECTIONS { . = ALIGN(4096); _end = .; - /DISCARD/ : { *(.discard) } + DISCARDS } diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S index 45901609b741..1474c18fb777 100644 --- a/arch/mips/kernel/vmlinux.lds.S +++ b/arch/mips/kernel/vmlinux.lds.S @@ -176,18 +176,6 @@ SECTIONS _end = . ; - /* Sections to be discarded */ - /DISCARD/ : { - *(.exitcall.exit) - *(.discard) - - /* ABI crap starts here */ - *(.MIPS.options) - *(.options) - *(.pdr) - *(.reginfo) - } - /* These mark the ABI of the kernel for debuggers. */ .mdebug.abi32 : { KEEP(*(.mdebug.abi32)) @@ -213,4 +201,14 @@ SECTIONS *(.gptab.bss) *(.gptab.sbss) } + + /* Sections to be discarded */ + DISCARDS + /DISCARD/ : { + /* ABI crap starts here */ + *(.MIPS.options) + *(.options) + *(.pdr) + *(.reginfo) + } } diff --git a/arch/mn10300/kernel/vmlinux.lds.S b/arch/mn10300/kernel/vmlinux.lds.S index 5609d4962a55..8fcd0f1e21de 100644 --- a/arch/mn10300/kernel/vmlinux.lds.S +++ b/arch/mn10300/kernel/vmlinux.lds.S @@ -115,13 +115,10 @@ SECTIONS . = ALIGN(PAGE_SIZE); pg0 = .; - /* Sections to be discarded */ - /DISCARD/ : { - EXIT_CALL - *(.discard) - } - STABS_DEBUG DWARF_DEBUG + + /* Sections to be discarded */ + DISCARDS } diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index ccf58341845a..aea1784edbd1 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -237,10 +237,12 @@ SECTIONS /* freed after init ends here */ _end = . ; + STABS_DEBUG + .note 0 : { *(.note) } + /* Sections to be discarded */ + DISCARDS /DISCARD/ : { - *(.exitcall.exit) - *(.discard) #ifdef CONFIG_64BIT /* temporary hack until binutils is fixed to not emit these * for static binaries @@ -253,7 +255,4 @@ SECTIONS *(.gnu.hash) #endif } - - STABS_DEBUG - .note 0 : { *(.note) } } diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 7fca9355fd3d..244e3658983c 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -37,13 +37,6 @@ jiffies = jiffies_64 + 4; #endif SECTIONS { - /* Sections to be discarded. */ - /DISCARD/ : { - *(.exitcall.exit) - *(.discard) - EXIT_DATA - } - . = KERNELBASE; /* @@ -299,4 +292,7 @@ SECTIONS . = ALIGN(PAGE_SIZE); _end = . ; PROVIDE32 (end = .); + + /* Sections to be discarded. */ + DISCARDS } diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index 98867dfea469..82415c75b996 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -157,14 +157,10 @@ SECTIONS _end = . ; - /* Sections to be discarded */ - /DISCARD/ : { - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - /* Debugging sections. */ STABS_DEBUG DWARF_DEBUG + + /* Sections to be discarded */ + DISCARDS } diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S index 766976d27b21..0ce254bca92f 100644 --- a/arch/sh/kernel/vmlinux.lds.S +++ b/arch/sh/kernel/vmlinux.lds.S @@ -163,17 +163,14 @@ SECTIONS _end = . ; } + STABS_DEBUG + DWARF_DEBUG + /* * When something in the kernel is NOT compiled as a module, the * module cleanup code and data are put into these segments. Both * can then be thrown away, as cleanup code is never called unless * it's a module. */ - /DISCARD/ : { - *(.exitcall.exit) - *(.discard) - } - - STABS_DEBUG - DWARF_DEBUG + DISCARDS } diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index d63cf914667d..866390feb683 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -171,13 +171,8 @@ SECTIONS } _end = . ; - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - STABS_DEBUG DWARF_DEBUG + + DISCARDS } diff --git a/arch/um/include/asm/common.lds.S b/arch/um/include/asm/common.lds.S index cb0248616d49..37ecc5577a9a 100644 --- a/arch/um/include/asm/common.lds.S +++ b/arch/um/include/asm/common.lds.S @@ -123,8 +123,3 @@ __initramfs_end = .; } - /* Sections to be discarded */ - /DISCARD/ : { - *(.exitcall.exit) - } - diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S index 2916d6eadffd..715a188c0472 100644 --- a/arch/um/kernel/dyn.lds.S +++ b/arch/um/kernel/dyn.lds.S @@ -157,5 +157,5 @@ SECTIONS DWARF_DEBUG - /DISCARD/ : { *(.discard) } + DISCARDS } diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S index 1f8a622cabe1..2ebd39765db8 100644 --- a/arch/um/kernel/uml.lds.S +++ b/arch/um/kernel/uml.lds.S @@ -101,5 +101,5 @@ SECTIONS DWARF_DEBUG - /DISCARD/ : { *(.discard) } + DISCARDS } diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 367e87882041..b600c843710b 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -387,15 +387,12 @@ SECTIONS _end = .; } - /* Sections to be discarded */ - /DISCARD/ : { - *(.exitcall.exit) - *(.eh_frame) - *(.discard) - } - STABS_DEBUG DWARF_DEBUG + + /* Sections to be discarded */ + DISCARDS + /DISCARD/ : { *(.eh_frame) } } diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S index b1e24638acd7..921b6ff3b645 100644 --- a/arch/xtensa/kernel/vmlinux.lds.S +++ b/arch/xtensa/kernel/vmlinux.lds.S @@ -280,16 +280,6 @@ SECTIONS *(.ResetVector.text) } - /* Sections to be discarded */ - /DISCARD/ : - { - *(.exit.literal) - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - *(.discard) - } - .xt.lit : { *(.xt.lit) } .xt.prop : { *(.xt.prop) } @@ -322,4 +312,8 @@ SECTIONS *(.xt.lit) *(.gnu.linkonce.p*) } + + /* Sections to be discarded */ + DISCARDS + /DISCARD/ : { *(.exit.literal) } } diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index c5c18ac878ab..ab8ea9b7741e 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -35,13 +35,10 @@ * __bss_stop = .; * _end = .; * - * /DISCARD/ : { - * EXIT_TEXT - * EXIT_DATA - * EXIT_CALL - * } * STABS_DEBUG * DWARF_DEBUG + * + * DISCARDS // must be the last * } * * [__init_begin, __init_end] is the init section that may be freed after init @@ -629,11 +626,20 @@ #define INIT_RAM_FS #endif +/* + * Default discarded sections. + * + * Some archs want to discard exit text/data at runtime rather than + * link time due to cross-section references such as alt instructions, + * bug table, eh_frame, etc. DISCARDS must be the last of output + * section definitions so that such archs put those in earlier section + * definitions. + */ #define DISCARDS \ /DISCARD/ : { \ EXIT_TEXT \ EXIT_DATA \ - *(.exitcall.exit) \ + EXIT_CALL \ *(.discard) \ } -- cgit v1.2.3 From 49c794e94649020248e37b78db16cd25bad38b4f Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Tue, 4 Aug 2009 07:28:28 +0000 Subject: net: implement a SO_PROTOCOL getsockoption Similar to SO_TYPE returning the socket type, SO_PROTOCOL allows to retrieve the protocol used with a given socket. I am not quite sure why we have that-many copies of socket.h, and why the values are not the same on all arches either, but for where hex numbers dominate, I use 0x1029 for SO_PROTOCOL as that seems to be the next free unused number across a bunch of operating systems, or so Google results make me want to believe. SO_PROTOCOL for others just uses the next free Linux number, 38. Signed-off-by: Jan Engelhardt Signed-off-by: David S. Miller --- arch/alpha/include/asm/socket.h | 1 + arch/arm/include/asm/socket.h | 2 ++ arch/avr32/include/asm/socket.h | 2 ++ arch/cris/include/asm/socket.h | 2 ++ arch/frv/include/asm/socket.h | 2 ++ arch/h8300/include/asm/socket.h | 2 ++ arch/ia64/include/asm/socket.h | 2 ++ arch/m32r/include/asm/socket.h | 2 ++ arch/m68k/include/asm/socket.h | 2 ++ arch/microblaze/include/asm/socket.h | 2 ++ arch/mips/include/asm/socket.h | 1 + arch/mn10300/include/asm/socket.h | 2 ++ arch/parisc/include/asm/socket.h | 1 + arch/powerpc/include/asm/socket.h | 2 ++ arch/s390/include/asm/socket.h | 2 ++ arch/sparc/include/asm/socket.h | 2 ++ arch/x86/include/asm/socket.h | 2 ++ arch/xtensa/include/asm/socket.h | 2 ++ include/asm-generic/socket.h | 2 ++ net/core/sock.c | 5 +++++ 20 files changed, 40 insertions(+) (limited to 'arch/avr32') diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h index 3641ec1452f4..2f8b4d377749 100644 --- a/arch/alpha/include/asm/socket.h +++ b/arch/alpha/include/asm/socket.h @@ -32,6 +32,7 @@ #define SO_RCVTIMEO 0x1012 #define SO_SNDTIMEO 0x1013 #define SO_ACCEPTCONN 0x1014 +#define SO_PROTOCOL 0x1028 /* linux-specific, might as well be the same as on i386 */ #define SO_NO_CHECK 11 diff --git a/arch/arm/include/asm/socket.h b/arch/arm/include/asm/socket.h index 537de4e0ef50..7f47454ffbf3 100644 --- a/arch/arm/include/asm/socket.h +++ b/arch/arm/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/avr32/include/asm/socket.h b/arch/avr32/include/asm/socket.h index 04c860619700..6af2866a4f00 100644 --- a/arch/avr32/include/asm/socket.h +++ b/arch/avr32/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* __ASM_AVR32_SOCKET_H */ diff --git a/arch/cris/include/asm/socket.h b/arch/cris/include/asm/socket.h index d5cf74005408..f3859fb0990c 100644 --- a/arch/cris/include/asm/socket.h +++ b/arch/cris/include/asm/socket.h @@ -59,6 +59,8 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/frv/include/asm/socket.h b/arch/frv/include/asm/socket.h index 57c3d4054e8b..8dab3486ffa4 100644 --- a/arch/frv/include/asm/socket.h +++ b/arch/frv/include/asm/socket.h @@ -57,5 +57,7 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/h8300/include/asm/socket.h b/arch/h8300/include/asm/socket.h index 602518a70a1a..ba770d09cd63 100644 --- a/arch/h8300/include/asm/socket.h +++ b/arch/h8300/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/ia64/include/asm/socket.h b/arch/ia64/include/asm/socket.h index 745421225ec6..091cd9d47d0f 100644 --- a/arch/ia64/include/asm/socket.h +++ b/arch/ia64/include/asm/socket.h @@ -66,4 +66,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_IA64_SOCKET_H */ diff --git a/arch/m32r/include/asm/socket.h b/arch/m32r/include/asm/socket.h index be7ed589af5c..d36f5928fb79 100644 --- a/arch/m32r/include/asm/socket.h +++ b/arch/m32r/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_M32R_SOCKET_H */ diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/asm/socket.h index ca87f938b03f..060cb7ed024f 100644 --- a/arch/m68k/include/asm/socket.h +++ b/arch/m68k/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/microblaze/include/asm/socket.h b/arch/microblaze/include/asm/socket.h index 825936860314..96bf8bfa935e 100644 --- a/arch/microblaze/include/asm/socket.h +++ b/arch/microblaze/include/asm/socket.h @@ -66,4 +66,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_MICROBLAZE_SOCKET_H */ diff --git a/arch/mips/include/asm/socket.h b/arch/mips/include/asm/socket.h index 2abca1780169..289ce5f5f2a3 100644 --- a/arch/mips/include/asm/socket.h +++ b/arch/mips/include/asm/socket.h @@ -42,6 +42,7 @@ To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */ #define SO_SNDTIMEO 0x1005 /* send timeout */ #define SO_RCVTIMEO 0x1006 /* receive timeout */ #define SO_ACCEPTCONN 0x1009 +#define SO_PROTOCOL 0x1028 /* protocol type */ /* linux-specific, might as well be the same as on i386 */ #define SO_NO_CHECK 11 diff --git a/arch/mn10300/include/asm/socket.h b/arch/mn10300/include/asm/socket.h index fb5daf438ec9..19d7cf709b77 100644 --- a/arch/mn10300/include/asm/socket.h +++ b/arch/mn10300/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h index 885472bf7b78..a658b09df624 100644 --- a/arch/parisc/include/asm/socket.h +++ b/arch/parisc/include/asm/socket.h @@ -24,6 +24,7 @@ #define SO_RCVTIMEO 0x1006 #define SO_ERROR 0x1007 #define SO_TYPE 0x1008 +#define SO_PROTOCOL 0x1028 #define SO_PEERNAME 0x2000 #define SO_NO_CHECK 0x400b diff --git a/arch/powerpc/include/asm/socket.h b/arch/powerpc/include/asm/socket.h index 1e5cfad0e3f7..609049d7117e 100644 --- a/arch/powerpc/include/asm/socket.h +++ b/arch/powerpc/include/asm/socket.h @@ -64,4 +64,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_POWERPC_SOCKET_H */ diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h index 02330c50241b..65baa9a83abc 100644 --- a/arch/s390/include/asm/socket.h +++ b/arch/s390/include/asm/socket.h @@ -65,4 +65,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/sparc/include/asm/socket.h b/arch/sparc/include/asm/socket.h index 982a12f959f4..9cbbfafd0538 100644 --- a/arch/sparc/include/asm/socket.h +++ b/arch/sparc/include/asm/socket.h @@ -29,6 +29,8 @@ #define SO_RCVBUFFORCE 0x100b #define SO_ERROR 0x1007 #define SO_TYPE 0x1008 +#define SO_PROTOCOL 0x1028 + /* Linux specific, keep the same. */ #define SO_NO_CHECK 0x000b diff --git a/arch/x86/include/asm/socket.h b/arch/x86/include/asm/socket.h index ca8bf2cd0ba9..1077d2535a32 100644 --- a/arch/x86/include/asm/socket.h +++ b/arch/x86/include/asm/socket.h @@ -57,4 +57,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _ASM_X86_SOCKET_H */ diff --git a/arch/xtensa/include/asm/socket.h b/arch/xtensa/include/asm/socket.h index dd1a7a4a1cea..e47f172142f1 100644 --- a/arch/xtensa/include/asm/socket.h +++ b/arch/xtensa/include/asm/socket.h @@ -68,4 +68,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* _XTENSA_SOCKET_H */ diff --git a/include/asm-generic/socket.h b/include/asm-generic/socket.h index 5d79e409241c..7e24d186616e 100644 --- a/include/asm-generic/socket.h +++ b/include/asm-generic/socket.h @@ -60,4 +60,6 @@ #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING +#define SO_PROTOCOL 38 + #endif /* __ASM_GENERIC_SOCKET_H */ diff --git a/net/core/sock.c b/net/core/sock.c index a324a80c163e..ebce661234ac 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -482,6 +482,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, sk->sk_reuse = valbool; break; case SO_TYPE: + case SO_PROTOCOL: case SO_ERROR: ret = -ENOPROTOOPT; break; @@ -764,6 +765,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sk->sk_type; break; + case SO_PROTOCOL: + v.val = sk->sk_protocol; + break; + case SO_ERROR: v.val = -sock_error(sk); if (v.val == 0) -- cgit v1.2.3 From 0d6038ee76f2e06b79d0465807f67e86bf4025de Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Tue, 4 Aug 2009 07:28:29 +0000 Subject: net: implement a SO_DOMAIN getsockoption MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This sockopt goes in line with SO_TYPE and SO_PROTOCOL. It makes it possible for userspace programs to pass around file descriptors — I am referring to arguments-to-functions, but it may even work for the fd passing over UNIX sockets — without needing to also pass the auxiliary information (PF_INET6/IPPROTO_TCP). Signed-off-by: Jan Engelhardt Signed-off-by: David S. Miller --- arch/alpha/include/asm/socket.h | 1 + arch/arm/include/asm/socket.h | 1 + arch/avr32/include/asm/socket.h | 1 + arch/cris/include/asm/socket.h | 1 + arch/frv/include/asm/socket.h | 1 + arch/h8300/include/asm/socket.h | 1 + arch/ia64/include/asm/socket.h | 1 + arch/m32r/include/asm/socket.h | 1 + arch/m68k/include/asm/socket.h | 1 + arch/microblaze/include/asm/socket.h | 1 + arch/mips/include/asm/socket.h | 1 + arch/mn10300/include/asm/socket.h | 1 + arch/parisc/include/asm/socket.h | 1 + arch/powerpc/include/asm/socket.h | 1 + arch/s390/include/asm/socket.h | 1 + arch/sparc/include/asm/socket.h | 1 + arch/x86/include/asm/socket.h | 1 + arch/xtensa/include/asm/socket.h | 1 + include/asm-generic/socket.h | 1 + net/core/sock.c | 5 +++++ 20 files changed, 24 insertions(+) (limited to 'arch/avr32') diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h index 2f8b4d377749..26773e3246e2 100644 --- a/arch/alpha/include/asm/socket.h +++ b/arch/alpha/include/asm/socket.h @@ -33,6 +33,7 @@ #define SO_SNDTIMEO 0x1013 #define SO_ACCEPTCONN 0x1014 #define SO_PROTOCOL 0x1028 +#define SO_DOMAIN 0x1029 /* linux-specific, might as well be the same as on i386 */ #define SO_NO_CHECK 11 diff --git a/arch/arm/include/asm/socket.h b/arch/arm/include/asm/socket.h index 7f47454ffbf3..92ac61d294fd 100644 --- a/arch/arm/include/asm/socket.h +++ b/arch/arm/include/asm/socket.h @@ -58,5 +58,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_SOCKET_H */ diff --git a/arch/avr32/include/asm/socket.h b/arch/avr32/include/asm/socket.h index 6af2866a4f00..fe863f9794d5 100644 --- a/arch/avr32/include/asm/socket.h +++ b/arch/avr32/include/asm/socket.h @@ -58,5 +58,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* __ASM_AVR32_SOCKET_H */ diff --git a/arch/cris/include/asm/socket.h b/arch/cris/include/asm/socket.h index f3859fb0990c..45ec49bdb7b1 100644 --- a/arch/cris/include/asm/socket.h +++ b/arch/cris/include/asm/socket.h @@ -60,6 +60,7 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_SOCKET_H */ diff --git a/arch/frv/include/asm/socket.h b/arch/frv/include/asm/socket.h index 8dab3486ffa4..2dea726095c2 100644 --- a/arch/frv/include/asm/socket.h +++ b/arch/frv/include/asm/socket.h @@ -58,6 +58,7 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_SOCKET_H */ diff --git a/arch/h8300/include/asm/socket.h b/arch/h8300/include/asm/socket.h index ba770d09cd63..1547f01c8e22 100644 --- a/arch/h8300/include/asm/socket.h +++ b/arch/h8300/include/asm/socket.h @@ -58,5 +58,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_SOCKET_H */ diff --git a/arch/ia64/include/asm/socket.h b/arch/ia64/include/asm/socket.h index 091cd9d47d0f..0b0d5ff062e5 100644 --- a/arch/ia64/include/asm/socket.h +++ b/arch/ia64/include/asm/socket.h @@ -67,5 +67,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_IA64_SOCKET_H */ diff --git a/arch/m32r/include/asm/socket.h b/arch/m32r/include/asm/socket.h index d36f5928fb79..3390a864f224 100644 --- a/arch/m32r/include/asm/socket.h +++ b/arch/m32r/include/asm/socket.h @@ -58,5 +58,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_M32R_SOCKET_H */ diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/asm/socket.h index 060cb7ed024f..eee01cce921b 100644 --- a/arch/m68k/include/asm/socket.h +++ b/arch/m68k/include/asm/socket.h @@ -58,5 +58,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_SOCKET_H */ diff --git a/arch/microblaze/include/asm/socket.h b/arch/microblaze/include/asm/socket.h index 96bf8bfa935e..7361ae7cfcde 100644 --- a/arch/microblaze/include/asm/socket.h +++ b/arch/microblaze/include/asm/socket.h @@ -67,5 +67,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_MICROBLAZE_SOCKET_H */ diff --git a/arch/mips/include/asm/socket.h b/arch/mips/include/asm/socket.h index 289ce5f5f2a3..ae05accd9fe4 100644 --- a/arch/mips/include/asm/socket.h +++ b/arch/mips/include/asm/socket.h @@ -43,6 +43,7 @@ To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */ #define SO_RCVTIMEO 0x1006 /* receive timeout */ #define SO_ACCEPTCONN 0x1009 #define SO_PROTOCOL 0x1028 /* protocol type */ +#define SO_DOMAIN 0x1029 /* domain/socket family */ /* linux-specific, might as well be the same as on i386 */ #define SO_NO_CHECK 11 diff --git a/arch/mn10300/include/asm/socket.h b/arch/mn10300/include/asm/socket.h index 19d7cf709b77..4df75af29d76 100644 --- a/arch/mn10300/include/asm/socket.h +++ b/arch/mn10300/include/asm/socket.h @@ -58,5 +58,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_SOCKET_H */ diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h index a658b09df624..960b1e5d8e16 100644 --- a/arch/parisc/include/asm/socket.h +++ b/arch/parisc/include/asm/socket.h @@ -25,6 +25,7 @@ #define SO_ERROR 0x1007 #define SO_TYPE 0x1008 #define SO_PROTOCOL 0x1028 +#define SO_DOMAIN 0x1029 #define SO_PEERNAME 0x2000 #define SO_NO_CHECK 0x400b diff --git a/arch/powerpc/include/asm/socket.h b/arch/powerpc/include/asm/socket.h index 609049d7117e..3ab8b3e6feb0 100644 --- a/arch/powerpc/include/asm/socket.h +++ b/arch/powerpc/include/asm/socket.h @@ -65,5 +65,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_POWERPC_SOCKET_H */ diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h index 65baa9a83abc..e42df89a0b85 100644 --- a/arch/s390/include/asm/socket.h +++ b/arch/s390/include/asm/socket.h @@ -66,5 +66,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_SOCKET_H */ diff --git a/arch/sparc/include/asm/socket.h b/arch/sparc/include/asm/socket.h index 9cbbfafd0538..3a5ae3d12088 100644 --- a/arch/sparc/include/asm/socket.h +++ b/arch/sparc/include/asm/socket.h @@ -30,6 +30,7 @@ #define SO_ERROR 0x1007 #define SO_TYPE 0x1008 #define SO_PROTOCOL 0x1028 +#define SO_DOMAIN 0x1029 /* Linux specific, keep the same. */ diff --git a/arch/x86/include/asm/socket.h b/arch/x86/include/asm/socket.h index 1077d2535a32..b2a8c74f2d06 100644 --- a/arch/x86/include/asm/socket.h +++ b/arch/x86/include/asm/socket.h @@ -58,5 +58,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _ASM_X86_SOCKET_H */ diff --git a/arch/xtensa/include/asm/socket.h b/arch/xtensa/include/asm/socket.h index e47f172142f1..beb3a6bdb61d 100644 --- a/arch/xtensa/include/asm/socket.h +++ b/arch/xtensa/include/asm/socket.h @@ -69,5 +69,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* _XTENSA_SOCKET_H */ diff --git a/include/asm-generic/socket.h b/include/asm-generic/socket.h index 7e24d186616e..538991cef6f0 100644 --- a/include/asm-generic/socket.h +++ b/include/asm-generic/socket.h @@ -61,5 +61,6 @@ #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 +#define SO_DOMAIN 39 #endif /* __ASM_GENERIC_SOCKET_H */ diff --git a/net/core/sock.c b/net/core/sock.c index ebce661234ac..3ac34ea6ec05 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -483,6 +483,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, break; case SO_TYPE: case SO_PROTOCOL: + case SO_DOMAIN: case SO_ERROR: ret = -ENOPROTOOPT; break; @@ -769,6 +770,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sk->sk_protocol; break; + case SO_DOMAIN: + v.val = sk->sk_family; + break; + case SO_ERROR: v.val = -sock_error(sk); if (v.val == 0) -- cgit v1.2.3 From d0420c83f39f79afb82010c2d2cafd150eef651b Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 2 Sep 2009 09:14:16 +0100 Subject: KEYS: Extend TIF_NOTIFY_RESUME to (almost) all architectures [try #6] Implement TIF_NOTIFY_RESUME for most of those architectures in which isn't yet available, and, whilst we're at it, have it call the appropriate tracehook. After this patch, blackfin, m68k* and xtensa still lack support and need alteration of assembly code to make it work. Resume notification can then be used (by a later patch) to install a new session keyring on the parent of a process. Signed-off-by: David Howells Acked-by: Russell King cc: linux-arch@vger.kernel.org Signed-off-by: James Morris --- arch/alpha/include/asm/thread_info.h | 5 ++++- arch/alpha/kernel/signal.c | 5 +++++ arch/arm/include/asm/thread_info.h | 3 +++ arch/arm/kernel/entry-common.S | 2 +- arch/arm/kernel/signal.c | 5 +++++ arch/avr32/include/asm/thread_info.h | 6 +++++- arch/avr32/kernel/entry-avr32b.S | 2 +- arch/avr32/kernel/signal.c | 5 +++++ arch/cris/kernel/ptrace.c | 5 +++++ arch/h8300/include/asm/thread_info.h | 2 ++ arch/h8300/kernel/signal.c | 5 +++++ arch/m32r/include/asm/thread_info.h | 2 ++ arch/m32r/kernel/signal.c | 5 +++++ arch/mips/include/asm/thread_info.h | 2 ++ arch/mips/kernel/signal.c | 5 +++++ arch/parisc/include/asm/thread_info.h | 4 +++- arch/parisc/kernel/entry.S | 2 +- arch/parisc/kernel/signal.c | 5 +++++ 18 files changed, 64 insertions(+), 6 deletions(-) (limited to 'arch/avr32') diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h index 60c83abfde70..5076a8860b18 100644 --- a/arch/alpha/include/asm/thread_info.h +++ b/arch/alpha/include/asm/thread_info.h @@ -75,6 +75,7 @@ register struct thread_info *__current_thread_info __asm__("$8"); #define TIF_UAC_SIGBUS 7 #define TIF_MEMDIE 8 #define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal */ +#define TIF_NOTIFY_RESUME 10 /* callback before returning to user */ #define TIF_FREEZE 16 /* is freezing for suspend */ #define _TIF_SYSCALL_TRACE (1<blocked, regs, syscall); + + if (thread_flags & _TIF_NOTIFY_RESUME) { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + } } diff --git a/arch/avr32/include/asm/thread_info.h b/arch/avr32/include/asm/thread_info.h index fc42de5ca209..fd0c5d7e9337 100644 --- a/arch/avr32/include/asm/thread_info.h +++ b/arch/avr32/include/asm/thread_info.h @@ -84,6 +84,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_MEMDIE 6 #define TIF_RESTORE_SIGMASK 7 /* restore signal mask in do_signal */ #define TIF_CPU_GOING_TO_SLEEP 8 /* CPU is entering sleep 0 mode */ +#define TIF_NOTIFY_RESUME 9 /* callback before returning to user */ #define TIF_FREEZE 29 #define TIF_DEBUG 30 /* debugging enabled */ #define TIF_USERSPACE 31 /* true if FS sets userspace */ @@ -96,6 +97,7 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_MEMDIE (1 << TIF_MEMDIE) #define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) #define _TIF_CPU_GOING_TO_SLEEP (1 << TIF_CPU_GOING_TO_SLEEP) +#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) #define _TIF_FREEZE (1 << TIF_FREEZE) /* Note: The masks below must never span more than 16 bits! */ @@ -103,13 +105,15 @@ static inline struct thread_info *current_thread_info(void) /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK \ ((1 << TIF_SIGPENDING) \ + | _TIF_NOTIFY_RESUME \ | (1 << TIF_NEED_RESCHED) \ | (1 << TIF_POLLING_NRFLAG) \ | (1 << TIF_BREAKPOINT) \ | (1 << TIF_RESTORE_SIGMASK)) /* work to do on any return to userspace */ -#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK | (1 << TIF_SYSCALL_TRACE)) +#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK | (1 << TIF_SYSCALL_TRACE) | \ + _TIF_NOTIFY_RESUME) /* work to do on return from debug mode */ #define _TIF_DBGWORK_MASK (_TIF_WORK_MASK & ~(1 << TIF_BREAKPOINT)) diff --git a/arch/avr32/kernel/entry-avr32b.S b/arch/avr32/kernel/entry-avr32b.S index 009a80155d67..169268c40ae2 100644 --- a/arch/avr32/kernel/entry-avr32b.S +++ b/arch/avr32/kernel/entry-avr32b.S @@ -281,7 +281,7 @@ syscall_exit_work: ld.w r1, r0[TI_flags] rjmp 1b -2: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK +2: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK | _TIF_NOTIFY_RESUME tst r1, r2 breq 3f unmask_interrupts diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c index 27227561bad6..62d242e2d033 100644 --- a/arch/avr32/kernel/signal.c +++ b/arch/avr32/kernel/signal.c @@ -322,4 +322,9 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti) if (ti->flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)) do_signal(regs, ¤t->blocked, syscall); + + if (ti->flags & _TIF_NOTIFY_RESUME) { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + } } diff --git a/arch/cris/kernel/ptrace.c b/arch/cris/kernel/ptrace.c index b326023baab2..4f06d7fb43dd 100644 --- a/arch/cris/kernel/ptrace.c +++ b/arch/cris/kernel/ptrace.c @@ -36,4 +36,9 @@ void do_notify_resume(int canrestart, struct pt_regs *regs, /* deal with pending signal delivery */ if (thread_info_flags & _TIF_SIGPENDING) do_signal(canrestart,regs); + + if (thread_info_flags & _TIF_NOTIFY_RESUME) { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + } } diff --git a/arch/h8300/include/asm/thread_info.h b/arch/h8300/include/asm/thread_info.h index 8bbc8b0ee45d..70e67e47d020 100644 --- a/arch/h8300/include/asm/thread_info.h +++ b/arch/h8300/include/asm/thread_info.h @@ -89,6 +89,7 @@ static inline struct thread_info *current_thread_info(void) TIF_NEED_RESCHED */ #define TIF_MEMDIE 4 #define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */ +#define TIF_NOTIFY_RESUME 6 /* callback before returning to user */ #define TIF_FREEZE 16 /* is freezing for suspend */ /* as above, but as bit values */ @@ -97,6 +98,7 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_NEED_RESCHED (1<) %r19, %r20, %r0 b,n intr_restore /* skip past if we've nothing to do */ diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index f82544225e8e..b3bfc4326703 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -645,4 +645,9 @@ void do_notify_resume(struct pt_regs *regs, long in_syscall) if (test_thread_flag(TIF_SIGPENDING) || test_thread_flag(TIF_RESTORE_SIGMASK)) do_signal(regs, in_syscall); + + if (test_thread_flag(TIF_NOTIFY_RESUME)) { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + } } -- cgit v1.2.3 From ee18d64c1f632043a02e6f5ba5e045bb26a5465f Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 2 Sep 2009 09:14:21 +0100 Subject: KEYS: Add a keyctl to install a process's session keyring on its parent [try #6] Add a keyctl to install a process's session keyring onto its parent. This replaces the parent's session keyring. Because the COW credential code does not permit one process to change another process's credentials directly, the change is deferred until userspace next starts executing again. Normally this will be after a wait*() syscall. To support this, three new security hooks have been provided: cred_alloc_blank() to allocate unset security creds, cred_transfer() to fill in the blank security creds and key_session_to_parent() - which asks the LSM if the process may replace its parent's session keyring. The replacement may only happen if the process has the same ownership details as its parent, and the process has LINK permission on the session keyring, and the session keyring is owned by the process, and the LSM permits it. Note that this requires alteration to each architecture's notify_resume path. This has been done for all arches barring blackfin, m68k* and xtensa, all of which need assembly alteration to support TIF_NOTIFY_RESUME. This allows the replacement to be performed at the point the parent process resumes userspace execution. This allows the userspace AFS pioctl emulation to fully emulate newpag() and the VIOCSETTOK and VIOCSETTOK2 pioctls, all of which require the ability to alter the parent process's PAG membership. However, since kAFS doesn't use PAGs per se, but rather dumps the keys into the session keyring, the session keyring of the parent must be replaced if, for example, VIOCSETTOK is passed the newpag flag. This can be tested with the following program: #include #include #include #define KEYCTL_SESSION_TO_PARENT 18 #define OSERROR(X, S) do { if ((long)(X) == -1) { perror(S); exit(1); } } while(0) int main(int argc, char **argv) { key_serial_t keyring, key; long ret; keyring = keyctl_join_session_keyring(argv[1]); OSERROR(keyring, "keyctl_join_session_keyring"); key = add_key("user", "a", "b", 1, keyring); OSERROR(key, "add_key"); ret = keyctl(KEYCTL_SESSION_TO_PARENT); OSERROR(ret, "KEYCTL_SESSION_TO_PARENT"); return 0; } Compiled and linked with -lkeyutils, you should see something like: [dhowells@andromeda ~]$ keyctl show Session Keyring -3 --alswrv 4043 4043 keyring: _ses 355907932 --alswrv 4043 -1 \_ keyring: _uid.4043 [dhowells@andromeda ~]$ /tmp/newpag [dhowells@andromeda ~]$ keyctl show Session Keyring -3 --alswrv 4043 4043 keyring: _ses 1055658746 --alswrv 4043 4043 \_ user: a [dhowells@andromeda ~]$ /tmp/newpag hello [dhowells@andromeda ~]$ keyctl show Session Keyring -3 --alswrv 4043 4043 keyring: hello 340417692 --alswrv 4043 4043 \_ user: a Where the test program creates a new session keyring, sticks a user key named 'a' into it and then installs it on its parent. Signed-off-by: David Howells Signed-off-by: James Morris --- Documentation/keys.txt | 20 +++++++++ arch/alpha/kernel/signal.c | 2 + arch/arm/kernel/signal.c | 2 + arch/avr32/kernel/signal.c | 2 + arch/cris/kernel/ptrace.c | 2 + arch/frv/kernel/signal.c | 2 + arch/h8300/kernel/signal.c | 2 + arch/ia64/kernel/process.c | 2 + arch/m32r/kernel/signal.c | 2 + arch/mips/kernel/signal.c | 2 + arch/mn10300/kernel/signal.c | 2 + arch/parisc/kernel/signal.c | 2 + arch/s390/kernel/signal.c | 2 + arch/sh/kernel/signal_32.c | 2 + arch/sh/kernel/signal_64.c | 2 + arch/sparc/kernel/signal_32.c | 2 + arch/sparc/kernel/signal_64.c | 3 ++ arch/x86/kernel/signal.c | 2 + include/linux/cred.h | 1 + include/linux/key.h | 3 ++ include/linux/keyctl.h | 1 + include/linux/sched.h | 1 + include/linux/security.h | 38 ++++++++++++++++ kernel/cred.c | 43 ++++++++++++++++++ security/capability.c | 19 ++++++++ security/keys/compat.c | 3 ++ security/keys/gc.c | 1 + security/keys/internal.h | 1 + security/keys/keyctl.c | 102 ++++++++++++++++++++++++++++++++++++++++++ security/keys/process_keys.c | 49 ++++++++++++++++++++ security/security.c | 17 +++++++ security/selinux/hooks.c | 28 ++++++++++++ security/smack/smack_lsm.c | 30 +++++++++++++ security/tomoyo/tomoyo.c | 17 +++++++ 34 files changed, 409 insertions(+) (limited to 'arch/avr32') diff --git a/Documentation/keys.txt b/Documentation/keys.txt index 203487e9b1d8..e4dbbdb1bd96 100644 --- a/Documentation/keys.txt +++ b/Documentation/keys.txt @@ -757,6 +757,26 @@ The keyctl syscall functions are: successful. + (*) Install the calling process's session keyring on its parent. + + long keyctl(KEYCTL_SESSION_TO_PARENT); + + This functions attempts to install the calling process's session keyring + on to the calling process's parent, replacing the parent's current session + keyring. + + The calling process must have the same ownership as its parent, the + keyring must have the same ownership as the calling process, the calling + process must have LINK permission on the keyring and the active LSM module + mustn't deny permission, otherwise error EPERM will be returned. + + Error ENOMEM will be returned if there was insufficient memory to complete + the operation, otherwise 0 will be returned to indicate success. + + The keyring will be replaced next time the parent process leaves the + kernel and resumes executing userspace. + + =============== KERNEL SERVICES =============== diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index 04e17c1f0f1b..d91aaa747050 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -687,5 +687,7 @@ do_notify_resume(struct pt_regs *regs, struct switch_stack *sw, if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 13dec276927a..ea4ad3a43c88 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -711,5 +711,7 @@ do_notify_resume(struct pt_regs *regs, unsigned int thread_flags, int syscall) if (thread_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c index 62d242e2d033..de9f7fe2aefa 100644 --- a/arch/avr32/kernel/signal.c +++ b/arch/avr32/kernel/signal.c @@ -326,5 +326,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti) if (ti->flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/cris/kernel/ptrace.c b/arch/cris/kernel/ptrace.c index 4f06d7fb43dd..32e9d5ee895b 100644 --- a/arch/cris/kernel/ptrace.c +++ b/arch/cris/kernel/ptrace.c @@ -40,5 +40,7 @@ void do_notify_resume(int canrestart, struct pt_regs *regs, if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c index 4a7a62c6e783..6b0a2b6fed6a 100644 --- a/arch/frv/kernel/signal.c +++ b/arch/frv/kernel/signal.c @@ -572,6 +572,8 @@ asmlinkage void do_notify_resume(__u32 thread_info_flags) if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(__frame); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } /* end do_notify_resume() */ diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c index 56b3ab7dbbb0..abac3ee8c52a 100644 --- a/arch/h8300/kernel/signal.c +++ b/arch/h8300/kernel/signal.c @@ -556,5 +556,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags) if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 5d7c0e5b9e76..89969e950045 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -192,6 +192,8 @@ do_notify_resume_user(sigset_t *unused, struct sigscratch *scr, long in_syscall) if (test_thread_flag(TIF_NOTIFY_RESUME)) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(&scr->pt); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } /* copy user rbs to kernel rbs */ diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c index 3220258be188..f80bac17c65c 100644 --- a/arch/m32r/kernel/signal.c +++ b/arch/m32r/kernel/signal.c @@ -411,6 +411,8 @@ void do_notify_resume(struct pt_regs *regs, sigset_t *oldset, if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } clear_thread_flag(TIF_IRET); diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index a3d1015471de..c2acf31874a4 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -704,5 +704,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused, if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c index feb2f2e810db..a21f43bc68e2 100644 --- a/arch/mn10300/kernel/signal.c +++ b/arch/mn10300/kernel/signal.c @@ -568,5 +568,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags) if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(__frame); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index b3bfc4326703..5ca1c02b805a 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -649,5 +649,7 @@ void do_notify_resume(struct pt_regs *regs, long in_syscall) if (test_thread_flag(TIF_NOTIFY_RESUME)) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index 062bd64e65fa..6b4fef877f9d 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -536,4 +536,6 @@ void do_notify_resume(struct pt_regs *regs) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index b5afbec1db59..04a21883f327 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -640,5 +640,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0, if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index 0663a0ee6021..9e5c9b1d7e98 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c @@ -772,5 +772,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned long thread_info if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c index 181d069a2d44..7ce1a1005b1d 100644 --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -590,6 +590,8 @@ void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c index ec82d76dc6f2..647afbda7ae1 100644 --- a/arch/sparc/kernel/signal_64.c +++ b/arch/sparc/kernel/signal_64.c @@ -613,5 +613,8 @@ void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, unsigned long if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } } + diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 4c578751e94e..81e58238c4ce 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -869,6 +869,8 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags) if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); } #ifdef CONFIG_X86_32 diff --git a/include/linux/cred.h b/include/linux/cred.h index 85439abdbc80..24520a539c6f 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -152,6 +152,7 @@ struct cred { extern void __put_cred(struct cred *); extern void exit_creds(struct task_struct *); extern int copy_creds(struct task_struct *, unsigned long); +extern struct cred *cred_alloc_blank(void); extern struct cred *prepare_creds(void); extern struct cred *prepare_exec_creds(void); extern struct cred *prepare_usermodehelper_creds(void); diff --git a/include/linux/key.h b/include/linux/key.h index 33e0165de100..cd50dfa1d4c2 100644 --- a/include/linux/key.h +++ b/include/linux/key.h @@ -278,6 +278,8 @@ static inline key_serial_t key_serial(struct key *key) extern ctl_table key_sysctls[]; #endif +extern void key_replace_session_keyring(void); + /* * the userspace interface */ @@ -300,6 +302,7 @@ extern void key_init(void); #define key_fsuid_changed(t) do { } while(0) #define key_fsgid_changed(t) do { } while(0) #define key_init() do { } while(0) +#define key_replace_session_keyring() do { } while(0) #endif /* CONFIG_KEYS */ #endif /* __KERNEL__ */ diff --git a/include/linux/keyctl.h b/include/linux/keyctl.h index c0688eb72093..bd383f1944fb 100644 --- a/include/linux/keyctl.h +++ b/include/linux/keyctl.h @@ -52,5 +52,6 @@ #define KEYCTL_SET_TIMEOUT 15 /* set key timeout */ #define KEYCTL_ASSUME_AUTHORITY 16 /* assume request_key() authorisation */ #define KEYCTL_GET_SECURITY 17 /* get key security label */ +#define KEYCTL_SESSION_TO_PARENT 18 /* apply session keyring to parent process */ #endif /* _LINUX_KEYCTL_H */ diff --git a/include/linux/sched.h b/include/linux/sched.h index 5c7ce13c1696..9304027673b0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1292,6 +1292,7 @@ struct task_struct { struct mutex cred_guard_mutex; /* guard against foreign influences on * credential calculations * (notably. ptrace) */ + struct cred *replacement_session_keyring; /* for KEYCTL_SESSION_TO_PARENT */ char comm[TASK_COMM_LEN]; /* executable name excluding path - access with [gs]et_task_comm (which lock diff --git a/include/linux/security.h b/include/linux/security.h index 40ba39ea68ce..97de3fe3dd0d 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -653,6 +653,11 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) * manual page for definitions of the @clone_flags. * @clone_flags contains the flags indicating what should be shared. * Return 0 if permission is granted. + * @cred_alloc_blank: + * @cred points to the credentials. + * @gfp indicates the atomicity of any memory allocations. + * Only allocate sufficient memory and attach to @cred such that + * cred_transfer() will not get ENOMEM. * @cred_free: * @cred points to the credentials. * Deallocate and clear the cred->security field in a set of credentials. @@ -665,6 +670,10 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) * @new points to the new credentials. * @old points to the original credentials. * Install a new set of credentials. + * @cred_transfer: + * @new points to the new credentials. + * @old points to the original credentials. + * Transfer data from original creds to new creds * @kernel_act_as: * Set the credentials for a kernel service to act as (subjective context). * @new points to the credentials to be modified. @@ -1103,6 +1112,13 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) * Return the length of the string (including terminating NUL) or -ve if * an error. * May also return 0 (and a NULL buffer pointer) if there is no label. + * @key_session_to_parent: + * Forcibly assign the session keyring from a process to its parent + * process. + * @cred: Pointer to process's credentials + * @parent_cred: Pointer to parent process's credentials + * @keyring: Proposed new session keyring + * Return 0 if permission is granted, -ve error otherwise. * * Security hooks affecting all System V IPC operations. * @@ -1498,10 +1514,12 @@ struct security_operations { int (*dentry_open) (struct file *file, const struct cred *cred); int (*task_create) (unsigned long clone_flags); + int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp); void (*cred_free) (struct cred *cred); int (*cred_prepare)(struct cred *new, const struct cred *old, gfp_t gfp); void (*cred_commit)(struct cred *new, const struct cred *old); + void (*cred_transfer)(struct cred *new, const struct cred *old); int (*kernel_act_as)(struct cred *new, u32 secid); int (*kernel_create_files_as)(struct cred *new, struct inode *inode); int (*kernel_module_request)(void); @@ -1639,6 +1657,9 @@ struct security_operations { const struct cred *cred, key_perm_t perm); int (*key_getsecurity)(struct key *key, char **_buffer); + int (*key_session_to_parent)(const struct cred *cred, + const struct cred *parent_cred, + struct key *key); #endif /* CONFIG_KEYS */ #ifdef CONFIG_AUDIT @@ -1755,9 +1776,11 @@ int security_file_send_sigiotask(struct task_struct *tsk, int security_file_receive(struct file *file); int security_dentry_open(struct file *file, const struct cred *cred); int security_task_create(unsigned long clone_flags); +int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); void security_cred_free(struct cred *cred); int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); void security_commit_creds(struct cred *new, const struct cred *old); +void security_transfer_creds(struct cred *new, const struct cred *old); int security_kernel_act_as(struct cred *new, u32 secid); int security_kernel_create_files_as(struct cred *new, struct inode *inode); int security_kernel_module_request(void); @@ -2286,6 +2309,9 @@ static inline int security_task_create(unsigned long clone_flags) return 0; } +static inline void security_cred_alloc_blank(struct cred *cred, gfp_t gfp) +{ } + static inline void security_cred_free(struct cred *cred) { } @@ -2301,6 +2327,11 @@ static inline void security_commit_creds(struct cred *new, { } +static inline void security_transfer_creds(struct cred *new, + const struct cred *old) +{ +} + static inline int security_kernel_act_as(struct cred *cred, u32 secid) { return 0; @@ -2923,6 +2954,9 @@ void security_key_free(struct key *key); int security_key_permission(key_ref_t key_ref, const struct cred *cred, key_perm_t perm); int security_key_getsecurity(struct key *key, char **_buffer); +int security_key_session_to_parent(const struct cred *cred, + const struct cred *parent_cred, + struct key *key); #else @@ -2950,6 +2984,10 @@ static inline int security_key_getsecurity(struct key *key, char **_buffer) return 0; } +static inline int security_key_session_to_parent(const struct cred *cred, + const struct cred *parent_cred, + struct key *key); + #endif #endif /* CONFIG_KEYS */ diff --git a/kernel/cred.c b/kernel/cred.c index 24dd2f5104b1..006fcab009d5 100644 --- a/kernel/cred.c +++ b/kernel/cred.c @@ -199,6 +199,49 @@ void exit_creds(struct task_struct *tsk) validate_creds(cred); alter_cred_subscribers(cred, -1); put_cred(cred); + + cred = (struct cred *) tsk->replacement_session_keyring; + if (cred) { + tsk->replacement_session_keyring = NULL; + validate_creds(cred); + put_cred(cred); + } +} + +/* + * Allocate blank credentials, such that the credentials can be filled in at a + * later date without risk of ENOMEM. + */ +struct cred *cred_alloc_blank(void) +{ + struct cred *new; + + new = kmem_cache_zalloc(cred_jar, GFP_KERNEL); + if (!new) + return NULL; + +#ifdef CONFIG_KEYS + new->tgcred = kzalloc(sizeof(*new->tgcred), GFP_KERNEL); + if (!new->tgcred) { + kfree(new); + return NULL; + } + atomic_set(&new->tgcred->usage, 1); +#endif + + atomic_set(&new->usage, 1); + + if (security_cred_alloc_blank(new, GFP_KERNEL) < 0) + goto error; + +#ifdef CONFIG_DEBUG_CREDENTIALS + new->magic = CRED_MAGIC; +#endif + return new; + +error: + abort_creds(new); + return NULL; } /** diff --git a/security/capability.c b/security/capability.c index 06400cf07757..93a2ffe65905 100644 --- a/security/capability.c +++ b/security/capability.c @@ -373,6 +373,11 @@ static int cap_task_create(unsigned long clone_flags) return 0; } +static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp) +{ + return 0; +} + static void cap_cred_free(struct cred *cred) { } @@ -386,6 +391,10 @@ static void cap_cred_commit(struct cred *new, const struct cred *old) { } +static void cap_cred_transfer(struct cred *new, const struct cred *old) +{ +} + static int cap_kernel_act_as(struct cred *new, u32 secid) { return 0; @@ -836,6 +845,13 @@ static int cap_key_getsecurity(struct key *key, char **_buffer) return 0; } +static int cap_key_session_to_parent(const struct cred *cred, + const struct cred *parent_cred, + struct key *key) +{ + return 0; +} + #endif /* CONFIG_KEYS */ #ifdef CONFIG_AUDIT @@ -961,9 +977,11 @@ void security_fixup_ops(struct security_operations *ops) set_to_cap_if_null(ops, file_receive); set_to_cap_if_null(ops, dentry_open); set_to_cap_if_null(ops, task_create); + set_to_cap_if_null(ops, cred_alloc_blank); set_to_cap_if_null(ops, cred_free); set_to_cap_if_null(ops, cred_prepare); set_to_cap_if_null(ops, cred_commit); + set_to_cap_if_null(ops, cred_transfer); set_to_cap_if_null(ops, kernel_act_as); set_to_cap_if_null(ops, kernel_create_files_as); set_to_cap_if_null(ops, kernel_module_request); @@ -1063,6 +1081,7 @@ void security_fixup_ops(struct security_operations *ops) set_to_cap_if_null(ops, key_free); set_to_cap_if_null(ops, key_permission); set_to_cap_if_null(ops, key_getsecurity); + set_to_cap_if_null(ops, key_session_to_parent); #endif /* CONFIG_KEYS */ #ifdef CONFIG_AUDIT set_to_cap_if_null(ops, audit_rule_init); diff --git a/security/keys/compat.c b/security/keys/compat.c index c766c68a63bc..792c0a611a6d 100644 --- a/security/keys/compat.c +++ b/security/keys/compat.c @@ -82,6 +82,9 @@ asmlinkage long compat_sys_keyctl(u32 option, case KEYCTL_GET_SECURITY: return keyctl_get_security(arg2, compat_ptr(arg3), arg4); + case KEYCTL_SESSION_TO_PARENT: + return keyctl_session_to_parent(); + default: return -EOPNOTSUPP; } diff --git a/security/keys/gc.c b/security/keys/gc.c index 44adc325e15c..1e616aef55fd 100644 --- a/security/keys/gc.c +++ b/security/keys/gc.c @@ -65,6 +65,7 @@ static void key_gc_timer_func(unsigned long data) * - return true if we altered the keyring */ static bool key_gc_keyring(struct key *keyring, time_t limit) + __releases(key_serial_lock) { struct keyring_list *klist; struct key *key; diff --git a/security/keys/internal.h b/security/keys/internal.h index fb830514c337..24ba0307b7ad 100644 --- a/security/keys/internal.h +++ b/security/keys/internal.h @@ -201,6 +201,7 @@ extern long keyctl_set_timeout(key_serial_t, unsigned); extern long keyctl_assume_authority(key_serial_t); extern long keyctl_get_security(key_serial_t keyid, char __user *buffer, size_t buflen); +extern long keyctl_session_to_parent(void); /* * debugging key validation diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index 736d7800f97f..74c968524592 100644 --- a/security/keys/keyctl.c +++ b/security/keys/keyctl.c @@ -1228,6 +1228,105 @@ long keyctl_get_security(key_serial_t keyid, return ret; } +/* + * attempt to install the calling process's session keyring on the process's + * parent process + * - the keyring must exist and must grant us LINK permission + * - implements keyctl(KEYCTL_SESSION_TO_PARENT) + */ +long keyctl_session_to_parent(void) +{ + struct task_struct *me, *parent; + const struct cred *mycred, *pcred; + struct cred *cred, *oldcred; + key_ref_t keyring_r; + int ret; + + keyring_r = lookup_user_key(KEY_SPEC_SESSION_KEYRING, 0, KEY_LINK); + if (IS_ERR(keyring_r)) + return PTR_ERR(keyring_r); + + /* our parent is going to need a new cred struct, a new tgcred struct + * and new security data, so we allocate them here to prevent ENOMEM in + * our parent */ + ret = -ENOMEM; + cred = cred_alloc_blank(); + if (!cred) + goto error_keyring; + + cred->tgcred->session_keyring = key_ref_to_ptr(keyring_r); + keyring_r = NULL; + + me = current; + write_lock_irq(&tasklist_lock); + + parent = me->real_parent; + ret = -EPERM; + + /* the parent mustn't be init and mustn't be a kernel thread */ + if (parent->pid <= 1 || !parent->mm) + goto not_permitted; + + /* the parent must be single threaded */ + if (atomic_read(&parent->signal->count) != 1) + goto not_permitted; + + /* the parent and the child must have different session keyrings or + * there's no point */ + mycred = current_cred(); + pcred = __task_cred(parent); + if (mycred == pcred || + mycred->tgcred->session_keyring == pcred->tgcred->session_keyring) + goto already_same; + + /* the parent must have the same effective ownership and mustn't be + * SUID/SGID */ + if (pcred-> uid != mycred->euid || + pcred->euid != mycred->euid || + pcred->suid != mycred->euid || + pcred-> gid != mycred->egid || + pcred->egid != mycred->egid || + pcred->sgid != mycred->egid) + goto not_permitted; + + /* the keyrings must have the same UID */ + if (pcred ->tgcred->session_keyring->uid != mycred->euid || + mycred->tgcred->session_keyring->uid != mycred->euid) + goto not_permitted; + + /* the LSM must permit the replacement of the parent's keyring with the + * keyring from this process */ + ret = security_key_session_to_parent(mycred, pcred, + key_ref_to_ptr(keyring_r)); + if (ret < 0) + goto not_permitted; + + /* if there's an already pending keyring replacement, then we replace + * that */ + oldcred = parent->replacement_session_keyring; + + /* the replacement session keyring is applied just prior to userspace + * restarting */ + parent->replacement_session_keyring = cred; + cred = NULL; + set_ti_thread_flag(task_thread_info(parent), TIF_NOTIFY_RESUME); + + write_unlock_irq(&tasklist_lock); + if (oldcred) + put_cred(oldcred); + return 0; + +already_same: + ret = 0; +not_permitted: + put_cred(cred); + return ret; + +error_keyring: + key_ref_put(keyring_r); + return ret; +} + /*****************************************************************************/ /* * the key control system call @@ -1313,6 +1412,9 @@ SYSCALL_DEFINE5(keyctl, int, option, unsigned long, arg2, unsigned long, arg3, (char __user *) arg3, (size_t) arg4); + case KEYCTL_SESSION_TO_PARENT: + return keyctl_session_to_parent(); + default: return -EOPNOTSUPP; } diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c index 4739cfbb41b7..5c23afb31ece 100644 --- a/security/keys/process_keys.c +++ b/security/keys/process_keys.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include "internal.h" @@ -768,3 +769,51 @@ error: abort_creds(new); return ret; } + +/* + * Replace a process's session keyring when that process resumes userspace on + * behalf of one of its children + */ +void key_replace_session_keyring(void) +{ + const struct cred *old; + struct cred *new; + + if (!current->replacement_session_keyring) + return; + + write_lock_irq(&tasklist_lock); + new = current->replacement_session_keyring; + current->replacement_session_keyring = NULL; + write_unlock_irq(&tasklist_lock); + + if (!new) + return; + + old = current_cred(); + new-> uid = old-> uid; + new-> euid = old-> euid; + new-> suid = old-> suid; + new->fsuid = old->fsuid; + new-> gid = old-> gid; + new-> egid = old-> egid; + new-> sgid = old-> sgid; + new->fsgid = old->fsgid; + new->user = get_uid(old->user); + new->group_info = get_group_info(old->group_info); + + new->securebits = old->securebits; + new->cap_inheritable = old->cap_inheritable; + new->cap_permitted = old->cap_permitted; + new->cap_effective = old->cap_effective; + new->cap_bset = old->cap_bset; + + new->jit_keyring = old->jit_keyring; + new->thread_keyring = key_get(old->thread_keyring); + new->tgcred->tgid = old->tgcred->tgid; + new->tgcred->process_keyring = key_get(old->tgcred->process_keyring); + + security_transfer_creds(new, old); + + commit_creds(new); +} diff --git a/security/security.c b/security/security.c index f88eaf6b14cc..d8b727637f02 100644 --- a/security/security.c +++ b/security/security.c @@ -684,6 +684,11 @@ int security_task_create(unsigned long clone_flags) return security_ops->task_create(clone_flags); } +int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) +{ + return security_ops->cred_alloc_blank(cred, gfp); +} + void security_cred_free(struct cred *cred) { security_ops->cred_free(cred); @@ -699,6 +704,11 @@ void security_commit_creds(struct cred *new, const struct cred *old) security_ops->cred_commit(new, old); } +void security_transfer_creds(struct cred *new, const struct cred *old) +{ + security_ops->cred_transfer(new, old); +} + int security_kernel_act_as(struct cred *new, u32 secid) { return security_ops->kernel_act_as(new, secid); @@ -1241,6 +1251,13 @@ int security_key_getsecurity(struct key *key, char **_buffer) return security_ops->key_getsecurity(key, _buffer); } +int security_key_session_to_parent(const struct cred *cred, + const struct cred *parent_cred, + struct key *key) +{ + return security_ops->key_session_to_parent(cred, parent_cred, key); +} + #endif /* CONFIG_KEYS */ #ifdef CONFIG_AUDIT diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index c3bb31ecc5aa..134a9c0d2004 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3232,6 +3232,21 @@ static int selinux_task_create(unsigned long clone_flags) return current_has_perm(current, PROCESS__FORK); } +/* + * allocate the SELinux part of blank credentials + */ +static int selinux_cred_alloc_blank(struct cred *cred, gfp_t gfp) +{ + struct task_security_struct *tsec; + + tsec = kzalloc(sizeof(struct task_security_struct), gfp); + if (!tsec) + return -ENOMEM; + + cred->security = tsec; + return 0; +} + /* * detach and free the LSM part of a set of credentials */ @@ -3263,6 +3278,17 @@ static int selinux_cred_prepare(struct cred *new, const struct cred *old, return 0; } +/* + * transfer the SELinux data to a blank set of creds + */ +static void selinux_cred_transfer(struct cred *new, const struct cred *old) +{ + const struct task_security_struct *old_tsec = old->security; + struct task_security_struct *tsec = new->security; + + *tsec = *old_tsec; +} + /* * set the security data for a kernel service * - all the creation contexts are set to unlabelled @@ -5469,8 +5495,10 @@ static struct security_operations selinux_ops = { .dentry_open = selinux_dentry_open, .task_create = selinux_task_create, + .cred_alloc_blank = selinux_cred_alloc_blank, .cred_free = selinux_cred_free, .cred_prepare = selinux_cred_prepare, + .cred_transfer = selinux_cred_transfer, .kernel_act_as = selinux_kernel_act_as, .kernel_create_files_as = selinux_kernel_create_files_as, .kernel_module_request = selinux_kernel_module_request, diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index c243a2b25832..969f5fee1906 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -1079,6 +1079,22 @@ static int smack_file_receive(struct file *file) * Task hooks */ +/** + * smack_cred_alloc_blank - "allocate" blank task-level security credentials + * @new: the new credentials + * @gfp: the atomicity of any memory allocations + * + * Prepare a blank set of credentials for modification. This must allocate all + * the memory the LSM module might require such that cred_transfer() can + * complete without error. + */ +static int smack_cred_alloc_blank(struct cred *cred, gfp_t gfp) +{ + cred->security = NULL; + return 0; +} + + /** * smack_cred_free - "free" task-level security credentials * @cred: the credentials in question @@ -1116,6 +1132,18 @@ static void smack_cred_commit(struct cred *new, const struct cred *old) { } +/** + * smack_cred_transfer - Transfer the old credentials to the new credentials + * @new: the new credentials + * @old: the original credentials + * + * Fill in a set of blank credentials from another set of credentials. + */ +static void smack_cred_transfer(struct cred *new, const struct cred *old) +{ + new->security = old->security; +} + /** * smack_kernel_act_as - Set the subjective context in a set of credentials * @new: points to the set of credentials to be modified. @@ -3073,9 +3101,11 @@ struct security_operations smack_ops = { .file_send_sigiotask = smack_file_send_sigiotask, .file_receive = smack_file_receive, + .cred_alloc_blank = smack_cred_alloc_blank, .cred_free = smack_cred_free, .cred_prepare = smack_cred_prepare, .cred_commit = smack_cred_commit, + .cred_transfer = smack_cred_transfer, .kernel_act_as = smack_kernel_act_as, .kernel_create_files_as = smack_kernel_create_files_as, .task_setpgid = smack_task_setpgid, diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c index 35a13e7915e4..9548a0984cc4 100644 --- a/security/tomoyo/tomoyo.c +++ b/security/tomoyo/tomoyo.c @@ -14,6 +14,12 @@ #include "tomoyo.h" #include "realpath.h" +static int tomoyo_cred_alloc_blank(struct cred *new, gfp_t gfp) +{ + new->security = NULL; + return 0; +} + static int tomoyo_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp) { @@ -25,6 +31,15 @@ static int tomoyo_cred_prepare(struct cred *new, const struct cred *old, return 0; } +static void tomoyo_cred_transfer(struct cred *new, const struct cred *old) +{ + /* + * Since "struct tomoyo_domain_info *" is a sharable pointer, + * we don't need to duplicate. + */ + new->security = old->security; +} + static int tomoyo_bprm_set_creds(struct linux_binprm *bprm) { int rc; @@ -262,7 +277,9 @@ static int tomoyo_dentry_open(struct file *f, const struct cred *cred) */ static struct security_operations tomoyo_security_ops = { .name = "tomoyo", + .cred_alloc_blank = tomoyo_cred_alloc_blank, .cred_prepare = tomoyo_cred_prepare, + .cred_transfer = tomoyo_cred_transfer, .bprm_set_creds = tomoyo_bprm_set_creds, .bprm_check_security = tomoyo_bprm_check_security, #ifdef CONFIG_SYSCTL -- cgit v1.2.3 From 733e5e4b4eb1bc1e27acbe092200154051171426 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 9 Sep 2009 08:30:21 +0100 Subject: KEYS: Add missing linux/tracehook.h #inclusions Add #inclusions of linux/tracehook.h to those arch files that had the tracehook call for TIF_NOTIFY_RESUME added when support for that flag was added to that arch. Signed-off-by: David Howells Signed-off-by: James Morris --- arch/alpha/kernel/signal.c | 1 + arch/arm/kernel/signal.c | 1 + arch/avr32/kernel/signal.c | 1 + arch/cris/kernel/ptrace.c | 1 + arch/h8300/kernel/signal.c | 1 + arch/m32r/kernel/signal.c | 1 + arch/mips/kernel/signal.c | 1 + arch/parisc/kernel/signal.c | 1 + 8 files changed, 8 insertions(+) (limited to 'arch/avr32') diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index d91aaa747050..0932dbb1ef8e 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index ea4ad3a43c88..b76fe06d92e7 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c index de9f7fe2aefa..64f886fac2ef 100644 --- a/arch/avr32/kernel/signal.c +++ b/arch/avr32/kernel/signal.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include diff --git a/arch/cris/kernel/ptrace.c b/arch/cris/kernel/ptrace.c index 32e9d5ee895b..48b0f3912632 100644 --- a/arch/cris/kernel/ptrace.c +++ b/arch/cris/kernel/ptrace.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c index abac3ee8c52a..af842c369d24 100644 --- a/arch/h8300/kernel/signal.c +++ b/arch/h8300/kernel/signal.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c index f80bac17c65c..144b0f124fc7 100644 --- a/arch/m32r/kernel/signal.c +++ b/arch/m32r/kernel/signal.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index c2acf31874a4..6254041b942f 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 5ca1c02b805a..8eb3c63c407a 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From d200c922bc2b1ac88b8d33b6cfff2ed837af186a Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 20 Sep 2009 18:14:13 -0400 Subject: Use new __init_task_data macro in arch init_task.c files. Signed-off-by: Joe Perches Signed-off-by: Tim Abbott Acked-by: Paul Mundt Signed-off-by: Sam Ravnborg --- arch/arm/kernel/init_task.c | 5 ++--- arch/avr32/kernel/init_task.c | 5 ++--- arch/cris/kernel/process.c | 5 ++--- arch/frv/kernel/init_task.c | 5 ++--- arch/h8300/kernel/init_task.c | 5 ++--- arch/ia64/kernel/init_task.c | 3 ++- arch/m32r/kernel/init_task.c | 5 ++--- arch/m68k/kernel/process.c | 6 +++--- arch/m68knommu/kernel/init_task.c | 5 ++--- arch/microblaze/kernel/init_task.c | 5 ++--- arch/mips/kernel/init_task.c | 5 ++--- arch/mn10300/kernel/init_task.c | 5 ++--- arch/parisc/kernel/init_task.c | 4 ++-- arch/powerpc/kernel/init_task.c | 5 ++--- arch/powerpc/kernel/machine_kexec_64.c | 5 +++-- arch/s390/kernel/init_task.c | 5 ++--- arch/score/kernel/init_task.c | 5 ++--- arch/sh/kernel/init_task.c | 5 ++--- arch/sparc/kernel/init_task.c | 5 ++--- arch/um/kernel/init_task.c | 5 ++--- arch/x86/kernel/init_task.c | 5 ++--- arch/xtensa/kernel/init_task.c | 5 ++--- 22 files changed, 46 insertions(+), 62 deletions(-) (limited to 'arch/avr32') diff --git a/arch/arm/kernel/init_task.c b/arch/arm/kernel/init_task.c index 3f470866bb89..e7cbb50dc356 100644 --- a/arch/arm/kernel/init_task.c +++ b/arch/arm/kernel/init_task.c @@ -24,9 +24,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * * The things we do for performance.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/avr32/kernel/init_task.c b/arch/avr32/kernel/init_task.c index 57ec9f2dcd95..6b2343e6fe33 100644 --- a/arch/avr32/kernel/init_task.c +++ b/arch/avr32/kernel/init_task.c @@ -18,9 +18,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); /* * Initial thread structure. Must be aligned on an 8192-byte boundary. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c index 51dcd04d2777..c99aeab7cef7 100644 --- a/arch/cris/kernel/process.c +++ b/arch/cris/kernel/process.c @@ -45,9 +45,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/frv/kernel/init_task.c b/arch/frv/kernel/init_task.c index 1d3df1d9495c..3c3e0b336a9d 100644 --- a/arch/frv/kernel/init_task.c +++ b/arch/frv/kernel/init_task.c @@ -19,9 +19,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/h8300/kernel/init_task.c b/arch/h8300/kernel/init_task.c index 089c65ed6eb3..54c1062ee80e 100644 --- a/arch/h8300/kernel/init_task.c +++ b/arch/h8300/kernel/init_task.c @@ -31,7 +31,6 @@ EXPORT_SYMBOL(init_task); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; diff --git a/arch/ia64/kernel/init_task.c b/arch/ia64/kernel/init_task.c index c475fc281be7..e253ab8fcbc8 100644 --- a/arch/ia64/kernel/init_task.c +++ b/arch/ia64/kernel/init_task.c @@ -33,7 +33,8 @@ union { struct thread_info thread_info; } s; unsigned long stack[KERNEL_STACK_SIZE/sizeof (unsigned long)]; -} init_task_mem asm ("init_task") __attribute__((section(".data.init_task"))) = {{ +} init_task_mem asm ("init_task") __init_task_data = + {{ .task = INIT_TASK(init_task_mem.s.task), .thread_info = INIT_THREAD_INFO(init_task_mem.s.task) }}; diff --git a/arch/m32r/kernel/init_task.c b/arch/m32r/kernel/init_task.c index fce57e5d3f91..6c42d5f8df50 100644 --- a/arch/m32r/kernel/init_task.c +++ b/arch/m32r/kernel/init_task.c @@ -20,9 +20,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c index 72bad65dba3a..41230c595a8e 100644 --- a/arch/m68k/kernel/process.c +++ b/arch/m68k/kernel/process.c @@ -42,9 +42,9 @@ */ static struct signal_struct init_signals = INIT_SIGNALS(init_signals); static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -union thread_union init_thread_union -__attribute__((section(".data.init_task"), aligned(THREAD_SIZE))) - = { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data + __attribute__((aligned(THREAD_SIZE))) = + { INIT_THREAD_INFO(init_task) }; /* initial task structure */ struct task_struct init_task = INIT_TASK(init_task); diff --git a/arch/m68knommu/kernel/init_task.c b/arch/m68knommu/kernel/init_task.c index 45e97a207fed..cbf9dc3cc51d 100644 --- a/arch/m68knommu/kernel/init_task.c +++ b/arch/m68knommu/kernel/init_task.c @@ -31,7 +31,6 @@ EXPORT_SYMBOL(init_task); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; diff --git a/arch/microblaze/kernel/init_task.c b/arch/microblaze/kernel/init_task.c index 67da22579b62..b5d711f94ff8 100644 --- a/arch/microblaze/kernel/init_task.c +++ b/arch/microblaze/kernel/init_task.c @@ -19,9 +19,8 @@ static struct signal_struct init_signals = INIT_SIGNALS(init_signals); static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = -{ INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; struct task_struct init_task = INIT_TASK(init_task); EXPORT_SYMBOL(init_task); diff --git a/arch/mips/kernel/init_task.c b/arch/mips/kernel/init_task.c index 5b457a40c784..6d6ca5305895 100644 --- a/arch/mips/kernel/init_task.c +++ b/arch/mips/kernel/init_task.c @@ -21,9 +21,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * * The things we do for performance.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"), - __aligned__(THREAD_SIZE))) = +union thread_union init_thread_union __init_task_data + __attribute__((__aligned__(THREAD_SIZE))) = { INIT_THREAD_INFO(init_task) }; /* diff --git a/arch/mn10300/kernel/init_task.c b/arch/mn10300/kernel/init_task.c index 80d423b80af3..a481b043bea7 100644 --- a/arch/mn10300/kernel/init_task.c +++ b/arch/mn10300/kernel/init_task.c @@ -27,9 +27,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c index 82974b20fc10..d020eae6525c 100644 --- a/arch/parisc/kernel/init_task.c +++ b/arch/parisc/kernel/init_task.c @@ -43,8 +43,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) = +union thread_union init_thread_union __init_task_data + __attribute__((aligned(128))) = { INIT_THREAD_INFO(init_task) }; #if PT_NLEVELS == 3 diff --git a/arch/powerpc/kernel/init_task.c b/arch/powerpc/kernel/init_task.c index ffc4253fef55..2375b7eb1c76 100644 --- a/arch/powerpc/kernel/init_task.c +++ b/arch/powerpc/kernel/init_task.c @@ -16,9 +16,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c index 49e705fcee6d..040bd1de8d99 100644 --- a/arch/powerpc/kernel/machine_kexec_64.c +++ b/arch/powerpc/kernel/machine_kexec_64.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include @@ -249,8 +250,8 @@ static void kexec_prepare_cpus(void) * We could use a smaller stack if we don't care about anything using * current, but that audit has not been performed. */ -static union thread_union kexec_stack - __attribute__((__section__(".data.init_task"))) = { }; +static union thread_union kexec_stack __init_task_data = + { }; /* Our assembly helper, in kexec_stub.S */ extern NORET_TYPE void kexec_sequence(void *newstack, unsigned long start, diff --git a/arch/s390/kernel/init_task.c b/arch/s390/kernel/init_task.c index fe787f9e5f3f..4d1c9fb0b540 100644 --- a/arch/s390/kernel/init_task.c +++ b/arch/s390/kernel/init_task.c @@ -25,9 +25,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/score/kernel/init_task.c b/arch/score/kernel/init_task.c index ff952f6c63fd..baa03ee217d1 100644 --- a/arch/score/kernel/init_task.c +++ b/arch/score/kernel/init_task.c @@ -34,9 +34,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"), __aligned__(THREAD_SIZE))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/sh/kernel/init_task.c b/arch/sh/kernel/init_task.c index 1719957c0a69..11f2ea556a6b 100644 --- a/arch/sh/kernel/init_task.c +++ b/arch/sh/kernel/init_task.c @@ -17,9 +17,8 @@ struct pt_regs fake_swapper_regs; * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/sparc/kernel/init_task.c b/arch/sparc/kernel/init_task.c index 28125c5b3d3c..5fe3d65581f7 100644 --- a/arch/sparc/kernel/init_task.c +++ b/arch/sparc/kernel/init_task.c @@ -18,6 +18,5 @@ EXPORT_SYMBOL(init_task); * If this is not aligned on a 8k boundry, then you should change code * in etrap.S which assumes it. */ -union thread_union init_thread_union - __attribute__((section (".data.init_task"))) - = { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; diff --git a/arch/um/kernel/init_task.c b/arch/um/kernel/init_task.c index b25121b537d8..8aa77b61a5ff 100644 --- a/arch/um/kernel/init_task.c +++ b/arch/um/kernel/init_task.c @@ -30,9 +30,8 @@ EXPORT_SYMBOL(init_task); * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; union thread_union cpu0_irqstack __attribute__((__section__(".data.init_irqstack"))) = diff --git a/arch/x86/kernel/init_task.c b/arch/x86/kernel/init_task.c index 270ff83efc11..3a54dcb9cd0e 100644 --- a/arch/x86/kernel/init_task.c +++ b/arch/x86/kernel/init_task.c @@ -20,9 +20,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; /* * Initial task structure. diff --git a/arch/xtensa/kernel/init_task.c b/arch/xtensa/kernel/init_task.c index c4302f0e4ba0..cd122fb7e48a 100644 --- a/arch/xtensa/kernel/init_task.c +++ b/arch/xtensa/kernel/init_task.c @@ -23,9 +23,8 @@ static struct signal_struct init_signals = INIT_SIGNALS(init_signals); static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -union thread_union init_thread_union - __attribute__((__section__(".data.init_task"))) = -{ INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; struct task_struct init_task = INIT_TASK(init_task); -- cgit v1.2.3 From abe1ee3a221d53778c3e58747bbec6e518e5471b Mon Sep 17 00:00:00 2001 From: Tim Abbott Date: Sun, 20 Sep 2009 18:14:15 -0400 Subject: Use macros for .data.page_aligned section. This patch changes the remaining direct references to .data.page_aligned in C and assembly code to use the macros in include/linux/linkage.h. Signed-off-by: Tim Abbott Cc: Thomas Gleixner Cc: Ingo Molnar Cc: H. Peter Anvin Cc: Haavard Skinnemoen Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Martin Schwidefsky Signed-off-by: Sam Ravnborg --- arch/avr32/mm/init.c | 4 +--- arch/powerpc/kernel/vdso.c | 3 ++- arch/powerpc/kernel/vdso32/vdso32_wrapper.S | 3 ++- arch/powerpc/kernel/vdso64/vdso64_wrapper.S | 3 ++- arch/s390/kernel/vdso.c | 2 +- arch/s390/kernel/vdso32/vdso32_wrapper.S | 3 ++- arch/s390/kernel/vdso64/vdso64_wrapper.S | 3 ++- arch/x86/include/asm/cache.h | 4 +++- arch/x86/kernel/head_32.S | 2 +- 9 files changed, 16 insertions(+), 11 deletions(-) (limited to 'arch/avr32') diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c index e819fa69a90e..cc60d10cf8f7 100644 --- a/arch/avr32/mm/init.c +++ b/arch/avr32/mm/init.c @@ -24,11 +24,9 @@ #include #include -#define __page_aligned __attribute__((section(".data.page_aligned"))) - DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); -pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned; +pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned_data; struct page *empty_zero_page; EXPORT_SYMBOL(empty_zero_page); diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index a0abce251d0a..3faaf29bdb29 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -1,3 +1,4 @@ + /* * Copyright (C) 2004 Benjamin Herrenschmidt, IBM Corp. * @@ -74,7 +75,7 @@ static int vdso_ready; static union { struct vdso_data data; u8 page[PAGE_SIZE]; -} vdso_data_store __attribute__((__section__(".data.page_aligned"))); +} vdso_data_store __page_aligned_data; struct vdso_data *vdso_data = &vdso_data_store.data; /* Format of the patch table */ diff --git a/arch/powerpc/kernel/vdso32/vdso32_wrapper.S b/arch/powerpc/kernel/vdso32/vdso32_wrapper.S index 556f0caa5d84..6e8f507ed32b 100644 --- a/arch/powerpc/kernel/vdso32/vdso32_wrapper.S +++ b/arch/powerpc/kernel/vdso32/vdso32_wrapper.S @@ -1,7 +1,8 @@ #include +#include #include - .section ".data.page_aligned" + __PAGE_ALIGNED_DATA .globl vdso32_start, vdso32_end .balign PAGE_SIZE diff --git a/arch/powerpc/kernel/vdso64/vdso64_wrapper.S b/arch/powerpc/kernel/vdso64/vdso64_wrapper.S index 0529cb9e3b97..b8553d62b792 100644 --- a/arch/powerpc/kernel/vdso64/vdso64_wrapper.S +++ b/arch/powerpc/kernel/vdso64/vdso64_wrapper.S @@ -1,7 +1,8 @@ #include +#include #include - .section ".data.page_aligned" + __PAGE_ALIGNED_DATA .globl vdso64_start, vdso64_end .balign PAGE_SIZE diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index 45e1708b70fd..45a3e9a7ae21 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -75,7 +75,7 @@ __setup("vdso=", vdso_setup); static union { struct vdso_data data; u8 page[PAGE_SIZE]; -} vdso_data_store __attribute__((__section__(".data.page_aligned"))); +} vdso_data_store __page_aligned_data; struct vdso_data *vdso_data = &vdso_data_store.data; /* diff --git a/arch/s390/kernel/vdso32/vdso32_wrapper.S b/arch/s390/kernel/vdso32/vdso32_wrapper.S index 61639a89e70b..ae42f8ce350b 100644 --- a/arch/s390/kernel/vdso32/vdso32_wrapper.S +++ b/arch/s390/kernel/vdso32/vdso32_wrapper.S @@ -1,7 +1,8 @@ #include +#include #include - .section ".data.page_aligned" + __PAGE_ALIGNED_DATA .globl vdso32_start, vdso32_end .balign PAGE_SIZE diff --git a/arch/s390/kernel/vdso64/vdso64_wrapper.S b/arch/s390/kernel/vdso64/vdso64_wrapper.S index d8e2ac14d564..c245842b516f 100644 --- a/arch/s390/kernel/vdso64/vdso64_wrapper.S +++ b/arch/s390/kernel/vdso64/vdso64_wrapper.S @@ -1,7 +1,8 @@ #include +#include #include - .section ".data.page_aligned" + __PAGE_ALIGNED_DATA .globl vdso64_start, vdso64_end .balign PAGE_SIZE diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h index 5d367caa0e36..549860d3be8f 100644 --- a/arch/x86/include/asm/cache.h +++ b/arch/x86/include/asm/cache.h @@ -1,6 +1,8 @@ #ifndef _ASM_X86_CACHE_H #define _ASM_X86_CACHE_H +#include + /* L1 cache line size */ #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) @@ -13,7 +15,7 @@ #ifdef CONFIG_SMP #define __cacheline_aligned_in_smp \ __attribute__((__aligned__(1 << (INTERNODE_CACHE_SHIFT)))) \ - __attribute__((__section__(".data.page_aligned"))) + __page_aligned_data #endif #endif diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 1dac23958427..218aad7ee76e 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -626,7 +626,7 @@ ENTRY(empty_zero_page) * This starts the data section. */ #ifdef CONFIG_X86_PAE -.section ".data.page_aligned","wa" +__PAGE_ALIGNED_DATA /* Page-aligned for the benefit of paravirt? */ .align PAGE_SIZE_asm ENTRY(swapper_pg_dir) -- cgit v1.2.3 From cc013a88906bad9d2832d6316de1c7dbc1c2a794 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 21 Sep 2009 17:02:36 -0700 Subject: arches: drop superfluous casts in nr_free_pages() callers Commit 96177299416dbccb73b54e6b344260154a445375 ("Drop free_pages()") modified nr_free_pages() to return 'unsigned long' instead of 'unsigned int'. This made the casts to 'unsigned long' in most callers superfluous, so remove them. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Geert Uytterhoeven Reviewed-by: Christoph Lameter Acked-by: Ingo Molnar Acked-by: Russell King Acked-by: David S. Miller Acked-by: Kyle McMartin Acked-by: WANG Cong Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Haavard Skinnemoen Cc: Mikael Starvik Cc: "Luck, Tony" Cc: Hirokazu Takata Cc: Ralf Baechle Cc: David Howells Acked-by: Benjamin Herrenschmidt Cc: Martin Schwidefsky Cc: Paul Mundt Cc: Chris Zankel Cc: Michal Simek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/mm/init.c | 2 +- arch/alpha/mm/numa.c | 2 +- arch/arm/mm/init.c | 4 ++-- arch/avr32/mm/init.c | 2 +- arch/cris/mm/init.c | 2 +- arch/ia64/mm/init.c | 2 +- arch/m32r/mm/init.c | 2 +- arch/m68k/mm/init.c | 2 +- arch/microblaze/mm/init.c | 2 +- arch/mips/mm/init.c | 2 +- arch/mn10300/mm/init.c | 2 +- arch/parisc/mm/init.c | 2 +- arch/powerpc/mm/mem.c | 2 +- arch/s390/mm/init.c | 2 +- arch/sh/mm/init.c | 2 +- arch/sparc/mm/init_32.c | 2 +- arch/um/kernel/mem.c | 2 +- arch/x86/mm/init_32.c | 2 +- arch/x86/mm/init_64.c | 2 +- arch/xtensa/mm/init.c | 2 +- 20 files changed, 21 insertions(+), 21 deletions(-) (limited to 'arch/avr32') diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index af71d38c8e41..a0902c20d677 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -299,7 +299,7 @@ printk_memory_info(void) initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; printk("Memory: %luk/%luk available (%luk kernel code, %luk reserved, %luk data, %luk init)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), max_mapnr << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c index 0eab55749423..10b403554b65 100644 --- a/arch/alpha/mm/numa.c +++ b/arch/alpha/mm/numa.c @@ -349,7 +349,7 @@ void __init mem_init(void) printk("Memory: %luk/%luk available (%luk kernel code, %luk reserved, " "%luk data, %luk init)\n", - (unsigned long)nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index ea36186f32c3..f982606d7bf9 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -596,8 +596,8 @@ void __init mem_init(void) printk(KERN_NOTICE "Memory: %luKB available (%dK code, " "%dK data, %dK init, %luK highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), - codesize >> 10, datasize >> 10, initsize >> 10, + nr_free_pages() << (PAGE_SHIFT-10), codesize >> 10, + datasize >> 10, initsize >> 10, (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10))); if (PAGE_SIZE >= 16384 && num_physpages <= 128) { diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c index e819fa69a90e..376f18c4a6cb 100644 --- a/arch/avr32/mm/init.c +++ b/arch/avr32/mm/init.c @@ -141,7 +141,7 @@ void __init mem_init(void) printk ("Memory: %luk/%luk available (%dk kernel code, " "%dk reserved, %dk data, %dk init)\n", - (unsigned long)nr_free_pages() << (PAGE_SHIFT - 10), + nr_free_pages() << (PAGE_SHIFT - 10), totalram_pages << (PAGE_SHIFT - 10), codesize >> 10, reservedpages << (PAGE_SHIFT - 10), diff --git a/arch/cris/mm/init.c b/arch/cris/mm/init.c index 514f46a4b230..ff68b9f516a1 100644 --- a/arch/cris/mm/init.c +++ b/arch/cris/mm/init.c @@ -54,7 +54,7 @@ mem_init(void) printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, " "%dk init)\n" , - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), max_mapnr << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index b115b3bbf04a..1d286244a562 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -655,7 +655,7 @@ mem_init (void) initsize = (unsigned long) __init_end - (unsigned long) __init_begin; printk(KERN_INFO "Memory: %luk/%luk available (%luk code, %luk reserved, " - "%luk data, %luk init)\n", (unsigned long) nr_free_pages() << (PAGE_SHIFT - 10), + "%luk data, %luk init)\n", nr_free_pages() << (PAGE_SHIFT - 10), num_physpages << (PAGE_SHIFT - 10), codesize >> 10, reserved_pages << (PAGE_SHIFT - 10), datasize >> 10, initsize >> 10); diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index 24d429f9358a..9f581df3952b 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c @@ -171,7 +171,7 @@ void __init mem_init(void) printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, " "%dk reserved, %dk data, %dk init)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 0007b2adf3a3..774549accd2d 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -126,7 +126,7 @@ void __init mem_init(void) #endif printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n", - (unsigned long)nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), totalram_pages << (PAGE_SHIFT-10), codepages << (PAGE_SHIFT-10), datapages << (PAGE_SHIFT-10), diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index f207f1a94dbc..1110784eb3f7 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -204,7 +204,7 @@ void __init mem_init(void) totalram_pages += free_all_bootmem(); printk(KERN_INFO "Memory: %luk/%luk available\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT-10)); #ifdef CONFIG_MMU mem_init_done = 1; diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 38c79c55b060..1f4ee4797a6e 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -417,7 +417,7 @@ void __init mem_init(void) printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), ram << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), diff --git a/arch/mn10300/mm/init.c b/arch/mn10300/mm/init.c index 8cee387a24fd..ec1420562dc7 100644 --- a/arch/mn10300/mm/init.c +++ b/arch/mn10300/mm/init.c @@ -112,7 +112,7 @@ void __init mem_init(void) "Memory: %luk/%luk available" " (%dk kernel code, %dk reserved, %dk data, %dk init," " %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT - 10), + nr_free_pages() << (PAGE_SHIFT - 10), max_mapnr << (PAGE_SHIFT - 10), codesize >> 10, reservedpages << (PAGE_SHIFT - 10), diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index b0831d9e35cb..d5aca31fddbb 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -506,7 +506,7 @@ void __init mem_init(void) #endif printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n", - (unsigned long)nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 579382c163a9..0e5c59b995ef 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -372,7 +372,7 @@ void __init mem_init(void) printk(KERN_INFO "Memory: %luk/%luk available (%luk kernel code, " "%luk reserved, %luk data, %luk bss, %luk init)\n", - (unsigned long)nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index c634dfbe92e9..765647952221 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -105,7 +105,7 @@ void __init mem_init(void) datasize = (unsigned long) &_edata - (unsigned long) &_etext; initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; printk("Memory: %luk/%luk available (%ldk kernel code, %ldk reserved, %ldk data, %ldk init)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), max_mapnr << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index edc842ff61ed..fabb7c6f48d2 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -232,7 +232,7 @@ void __init mem_init(void) printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, " "%dk data, %dk init)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT-10), codesize >> 10, datasize >> 10, diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index 54114ad0bdee..dc7c3b17a15f 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -472,7 +472,7 @@ void __init mem_init(void) reservedpages++; printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init, %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT - 10), codepages << (PAGE_SHIFT-10), reservedpages << (PAGE_SHIFT - 10), diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 61d7e6138ff5..a5d5e70cf6f5 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -77,7 +77,7 @@ void __init mem_init(void) num_physpages = totalram_pages; max_pfn = totalram_pages; printk(KERN_INFO "Memory: %luk available\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10)); + nr_free_pages() << (PAGE_SHIFT-10)); kmalloc_ok = 1; #ifdef CONFIG_HIGHMEM diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 3cd7711bb949..95e877f5b846 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -892,7 +892,7 @@ void __init mem_init(void) printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, " "%dk reserved, %dk data, %dk init, %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index ea56b8cbb6a6..810bd31e7f5f 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -687,7 +687,7 @@ void __init mem_init(void) printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " "%ldk absent, %ldk reserved, %ldk data, %ldk init)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), max_pfn << (PAGE_SHIFT-10), codesize >> 10, absent_pages << (PAGE_SHIFT-10), diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index 427e14fa43c5..cdbc27ca9665 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -203,7 +203,7 @@ void __init mem_init(void) printk("Memory: %luk/%luk available (%ldk kernel code, %ldk reserved, " "%ldk data, %ldk init %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), ram << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), -- cgit v1.2.3 From 90f72aa58bbf076b68e289fbd71eb829bc505923 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 21 Sep 2009 17:03:45 -0700 Subject: mm: add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions Add a flag for mmap that will be used to request a huge page region that will look like anonymous memory to user space. This is accomplished by using a file on the internal vfsmount. MAP_HUGETLB is a modifier of MAP_ANONYMOUS and so must be specified with it. The region will behave the same as a MAP_ANONYMOUS region using small pages. The patch also adds the MAP_STACK flag, which was previously defined only on some architectures but not on others. Since MAP_STACK is meant to be a hint only, architectures can define it without assigning a specific meaning to it. Signed-off-by: Arnd Bergmann Cc: Eric B Munson Cc: Hugh Dickins Cc: David Rientjes Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/include/asm/mman.h | 2 ++ arch/arm/include/asm/mman.h | 2 ++ arch/avr32/include/asm/mman.h | 2 ++ arch/cris/include/asm/mman.h | 2 ++ arch/frv/include/asm/mman.h | 2 ++ arch/h8300/include/asm/mman.h | 2 ++ arch/ia64/include/asm/mman.h | 2 ++ arch/m32r/include/asm/mman.h | 2 ++ arch/m68k/include/asm/mman.h | 2 ++ arch/mips/include/asm/mman.h | 2 ++ arch/mn10300/include/asm/mman.h | 2 ++ arch/parisc/include/asm/mman.h | 2 ++ arch/powerpc/include/asm/mman.h | 2 ++ arch/s390/include/asm/mman.h | 2 ++ arch/sparc/include/asm/mman.h | 2 ++ arch/xtensa/include/asm/mman.h | 2 ++ include/asm-generic/mman.h | 1 + 17 files changed, 33 insertions(+) (limited to 'arch/avr32') diff --git a/arch/alpha/include/asm/mman.h b/arch/alpha/include/asm/mman.h index c77c55756a7c..99c56d47879d 100644 --- a/arch/alpha/include/asm/mman.h +++ b/arch/alpha/include/asm/mman.h @@ -28,6 +28,8 @@ #define MAP_NORESERVE 0x10000 /* don't check for reservations */ #define MAP_POPULATE 0x20000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x40000 /* do not block on IO */ +#define MAP_STACK 0x80000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x100000 /* create a huge page mapping */ #define MS_ASYNC 1 /* sync memory asynchronously */ #define MS_SYNC 2 /* synchronous memory sync */ diff --git a/arch/arm/include/asm/mman.h b/arch/arm/include/asm/mman.h index fc26976d8e3a..6464d471bc70 100644 --- a/arch/arm/include/asm/mman.h +++ b/arch/arm/include/asm/mman.h @@ -10,6 +10,8 @@ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ #define MAP_POPULATE 0x8000 /* populate (prefault) page tables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/avr32/include/asm/mman.h b/arch/avr32/include/asm/mman.h index 9a92b15f6a66..38cea1b597c2 100644 --- a/arch/avr32/include/asm/mman.h +++ b/arch/avr32/include/asm/mman.h @@ -10,6 +10,8 @@ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ #define MAP_POPULATE 0x8000 /* populate (prefault) page tables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/cris/include/asm/mman.h b/arch/cris/include/asm/mman.h index b7f0afba3ce0..de6b903b22cd 100644 --- a/arch/cris/include/asm/mman.h +++ b/arch/cris/include/asm/mman.h @@ -12,6 +12,8 @@ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/frv/include/asm/mman.h b/arch/frv/include/asm/mman.h index 58c1d11e2ac7..1939343322bb 100644 --- a/arch/frv/include/asm/mman.h +++ b/arch/frv/include/asm/mman.h @@ -10,6 +10,8 @@ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/h8300/include/asm/mman.h b/arch/h8300/include/asm/mman.h index cf35f0a6f12e..eacacd04032e 100644 --- a/arch/h8300/include/asm/mman.h +++ b/arch/h8300/include/asm/mman.h @@ -10,6 +10,8 @@ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/ia64/include/asm/mman.h b/arch/ia64/include/asm/mman.h index 48cf8b98a0b4..cf55884e7f39 100644 --- a/arch/ia64/include/asm/mman.h +++ b/arch/ia64/include/asm/mman.h @@ -18,6 +18,8 @@ #define MAP_NORESERVE 0x04000 /* don't check for reservations */ #define MAP_POPULATE 0x08000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/m32r/include/asm/mman.h b/arch/m32r/include/asm/mman.h index 04a5f40aa401..d191089808f4 100644 --- a/arch/m32r/include/asm/mman.h +++ b/arch/m32r/include/asm/mman.h @@ -10,6 +10,8 @@ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/m68k/include/asm/mman.h b/arch/m68k/include/asm/mman.h index 9f5c4c4b3c7b..c421fef55f5e 100644 --- a/arch/m68k/include/asm/mman.h +++ b/arch/m68k/include/asm/mman.h @@ -10,6 +10,8 @@ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/mips/include/asm/mman.h b/arch/mips/include/asm/mman.h index f15554d1518a..a2250f390a29 100644 --- a/arch/mips/include/asm/mman.h +++ b/arch/mips/include/asm/mman.h @@ -46,6 +46,8 @@ #define MAP_LOCKED 0x8000 /* pages are locked */ #define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x20000 /* do not block on IO */ +#define MAP_STACK 0x40000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x80000 /* create a huge page mapping */ /* * Flags for msync diff --git a/arch/mn10300/include/asm/mman.h b/arch/mn10300/include/asm/mman.h index d04fac1da5aa..94611c356bb4 100644 --- a/arch/mn10300/include/asm/mman.h +++ b/arch/mn10300/include/asm/mman.h @@ -21,6 +21,8 @@ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/parisc/include/asm/mman.h b/arch/parisc/include/asm/mman.h index a12d9d43f507..9749c8afe83a 100644 --- a/arch/parisc/include/asm/mman.h +++ b/arch/parisc/include/asm/mman.h @@ -22,6 +22,8 @@ #define MAP_GROWSDOWN 0x8000 /* stack-like segment */ #define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x20000 /* do not block on IO */ +#define MAP_STACK 0x40000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x80000 /* create a huge page mapping */ #define MS_SYNC 1 /* synchronous memory sync */ #define MS_ASYNC 2 /* sync memory asynchronously */ diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h index 7b1c49811a24..d4a7f645c5db 100644 --- a/arch/powerpc/include/asm/mman.h +++ b/arch/powerpc/include/asm/mman.h @@ -25,6 +25,8 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #ifdef __KERNEL__ #ifdef CONFIG_PPC64 diff --git a/arch/s390/include/asm/mman.h b/arch/s390/include/asm/mman.h index f63fe7b431ed..22714ca181ad 100644 --- a/arch/s390/include/asm/mman.h +++ b/arch/s390/include/asm/mman.h @@ -18,6 +18,8 @@ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ diff --git a/arch/sparc/include/asm/mman.h b/arch/sparc/include/asm/mman.h index 988192e8e956..c3029ad6619a 100644 --- a/arch/sparc/include/asm/mman.h +++ b/arch/sparc/include/asm/mman.h @@ -20,6 +20,8 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #ifdef __KERNEL__ #ifndef __ASSEMBLY__ diff --git a/arch/xtensa/include/asm/mman.h b/arch/xtensa/include/asm/mman.h index 6e55b4d1f9c5..fca4db425f6e 100644 --- a/arch/xtensa/include/asm/mman.h +++ b/arch/xtensa/include/asm/mman.h @@ -53,6 +53,8 @@ #define MAP_LOCKED 0x8000 /* pages are locked */ #define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x20000 /* do not block on IO */ +#define MAP_STACK 0x40000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x80000 /* create a huge page mapping */ /* * Flags for msync diff --git a/include/asm-generic/mman.h b/include/asm-generic/mman.h index 7cab4de2bca6..32c8bd6a196d 100644 --- a/include/asm-generic/mman.h +++ b/include/asm-generic/mman.h @@ -11,6 +11,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ #define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ -- cgit v1.2.3 From 6e17b17f1fc7b2f24383a693d63550d9e1460081 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 21 Sep 2009 17:03:48 -0700 Subject: mm: remove duplicate asm/mman.h files A number of architectures have identical asm/mman.h files so they can all be merged by using the new generic file. The remaining asm/mman.h files are substantially different from each other. Signed-off-by: Arnd Bergmann Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/include/asm/mman.h | 20 +------------------- arch/avr32/include/asm/mman.h | 20 +------------------- arch/cris/include/asm/mman.h | 22 +--------------------- arch/frv/include/asm/mman.h | 21 +-------------------- arch/h8300/include/asm/mman.h | 20 +------------------- arch/ia64/include/asm/mman.h | 16 ++-------------- arch/m32r/include/asm/mman.h | 20 +------------------- arch/m68k/include/asm/mman.h | 20 +------------------- arch/mn10300/include/asm/mman.h | 31 +------------------------------ arch/s390/include/asm/mman.h | 15 +-------------- 10 files changed, 11 insertions(+), 194 deletions(-) (limited to 'arch/avr32') diff --git a/arch/arm/include/asm/mman.h b/arch/arm/include/asm/mman.h index 6464d471bc70..8eebf89f5ab1 100644 --- a/arch/arm/include/asm/mman.h +++ b/arch/arm/include/asm/mman.h @@ -1,19 +1 @@ -#ifndef __ARM_MMAN_H__ -#define __ARM_MMAN_H__ - -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_POPULATE 0x8000 /* populate (prefault) page tables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#endif /* __ARM_MMAN_H__ */ +#include diff --git a/arch/avr32/include/asm/mman.h b/arch/avr32/include/asm/mman.h index 38cea1b597c2..8eebf89f5ab1 100644 --- a/arch/avr32/include/asm/mman.h +++ b/arch/avr32/include/asm/mman.h @@ -1,19 +1 @@ -#ifndef __ASM_AVR32_MMAN_H__ -#define __ASM_AVR32_MMAN_H__ - -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_POPULATE 0x8000 /* populate (prefault) page tables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#endif /* __ASM_AVR32_MMAN_H__ */ +#include diff --git a/arch/cris/include/asm/mman.h b/arch/cris/include/asm/mman.h index de6b903b22cd..8eebf89f5ab1 100644 --- a/arch/cris/include/asm/mman.h +++ b/arch/cris/include/asm/mman.h @@ -1,21 +1 @@ -#ifndef __CRIS_MMAN_H__ -#define __CRIS_MMAN_H__ - -/* verbatim copy of asm-i386/ version */ - -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#endif /* __CRIS_MMAN_H__ */ +#include diff --git a/arch/frv/include/asm/mman.h b/arch/frv/include/asm/mman.h index 1939343322bb..8eebf89f5ab1 100644 --- a/arch/frv/include/asm/mman.h +++ b/arch/frv/include/asm/mman.h @@ -1,20 +1 @@ -#ifndef __ASM_MMAN_H__ -#define __ASM_MMAN_H__ - -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#endif /* __ASM_MMAN_H__ */ - +#include diff --git a/arch/h8300/include/asm/mman.h b/arch/h8300/include/asm/mman.h index eacacd04032e..8eebf89f5ab1 100644 --- a/arch/h8300/include/asm/mman.h +++ b/arch/h8300/include/asm/mman.h @@ -1,19 +1 @@ -#ifndef __H8300_MMAN_H__ -#define __H8300_MMAN_H__ - -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#endif /* __H8300_MMAN_H__ */ +#include diff --git a/arch/ia64/include/asm/mman.h b/arch/ia64/include/asm/mman.h index cf55884e7f39..4459028e5aa8 100644 --- a/arch/ia64/include/asm/mman.h +++ b/arch/ia64/include/asm/mman.h @@ -8,21 +8,9 @@ * David Mosberger-Tang , Hewlett-Packard Co */ -#include +#include -#define MAP_GROWSDOWN 0x00100 /* stack-like segment */ -#define MAP_GROWSUP 0x00200 /* register stack-like segment */ -#define MAP_DENYWRITE 0x00800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x01000 /* mark it as an executable */ -#define MAP_LOCKED 0x02000 /* pages are locked */ -#define MAP_NORESERVE 0x04000 /* don't check for reservations */ -#define MAP_POPULATE 0x08000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ +#define MAP_GROWSUP 0x0200 /* register stack-like segment */ #ifdef __KERNEL__ #ifndef __ASSEMBLY__ diff --git a/arch/m32r/include/asm/mman.h b/arch/m32r/include/asm/mman.h index d191089808f4..8eebf89f5ab1 100644 --- a/arch/m32r/include/asm/mman.h +++ b/arch/m32r/include/asm/mman.h @@ -1,19 +1 @@ -#ifndef __M32R_MMAN_H__ -#define __M32R_MMAN_H__ - -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#endif /* __M32R_MMAN_H__ */ +#include diff --git a/arch/m68k/include/asm/mman.h b/arch/m68k/include/asm/mman.h index c421fef55f5e..8eebf89f5ab1 100644 --- a/arch/m68k/include/asm/mman.h +++ b/arch/m68k/include/asm/mman.h @@ -1,19 +1 @@ -#ifndef __M68K_MMAN_H__ -#define __M68K_MMAN_H__ - -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#endif /* __M68K_MMAN_H__ */ +#include diff --git a/arch/mn10300/include/asm/mman.h b/arch/mn10300/include/asm/mman.h index 94611c356bb4..8eebf89f5ab1 100644 --- a/arch/mn10300/include/asm/mman.h +++ b/arch/mn10300/include/asm/mman.h @@ -1,30 +1 @@ -/* MN10300 Constants for mmap and co. - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - Derived from asm-x86/mman.h - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_MMAN_H -#define _ASM_MMAN_H - -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ - -#endif /* _ASM_MMAN_H */ +#include diff --git a/arch/s390/include/asm/mman.h b/arch/s390/include/asm/mman.h index 22714ca181ad..4e9c8ae0a637 100644 --- a/arch/s390/include/asm/mman.h +++ b/arch/s390/include/asm/mman.h @@ -9,20 +9,7 @@ #ifndef __S390_MMAN_H__ #define __S390_MMAN_H__ -#include - -#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ -#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ -#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MAP_LOCKED 0x2000 /* pages are locked */ -#define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ -#define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ -#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ - -#define MCL_CURRENT 1 /* lock all current mappings */ -#define MCL_FUTURE 2 /* lock all future mappings */ +#include #if defined(__KERNEL__) && !defined(__ASSEMBLY__) && defined(CONFIG_64BIT) int s390_mmap_check(unsigned long addr, unsigned long len); -- cgit v1.2.3