lwn.git/arch/sparc64/kernel/sys_sparc.c, branch docs-5.0-fix

sparc,sparc64: unify kernel/

2008-12-04T17:17:21+00:00

o Move all files from sparc64/kernel/ to sparc/kernel - rename as appropriate o Update sparc/Makefile to the changes o Update sparc/kernel/Makefile to include the sparc64 files NOTE: This commit changes link order on sparc64! Link order had to change for either of sparc32 and sparc64. And assuming sparc64 see more testing than sparc32 change link order on sparc64 where issues will be caught faster. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller

flag parameters: pipe

2008-07-24T17:47:28+00:00

This patch introduces the new syscall pipe2 which is like pipe but it also takes an additional parameter which takes a flag value. This patch implements the handling of O_CLOEXEC for the flag. I did not add support for the new syscall for the architectures which have a special sys_pipe implementation. I think the maintainers of those archs have the chance to go with the unified implementation but that's up to them. The implementation introduces do_pipe_flags. I did that instead of changing all callers of do_pipe because some of the callers are written in assembler. I would probably screw up changing the assembly code. To avoid breaking code do_pipe is now a small wrapper around do_pipe_flags. Once all callers are changed over to do_pipe_flags the old do_pipe function can be removed. The following test must be adjusted for architectures other than x86 and x86-64 and in case the syscall numbers changed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #include #include #include #include #ifndef __NR_pipe2 # ifdef __x86_64__ # define __NR_pipe2 293 # elif defined __i386__ # define __NR_pipe2 331 # else # error "need __NR_pipe2" # endif #endif int main (void) { int fd[2]; if (syscall (__NR_pipe2, fd, 0) != 0) { puts ("pipe2(0) failed"); return 1; } for (int i = 0; i < 2; ++i) { int coe = fcntl (fd[i], F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if (coe & FD_CLOEXEC) { printf ("pipe2(0) set close-on-exit for fd[%d]\n", i); return 1; } } close (fd[0]); close (fd[1]); if (syscall (__NR_pipe2, fd, O_CLOEXEC) != 0) { puts ("pipe2(O_CLOEXEC) failed"); return 1; } for (int i = 0; i < 2; ++i) { int coe = fcntl (fd[i], F_GETFD); if (coe == -1) { puts ("fcntl failed"); return 1; } if ((coe & FD_CLOEXEC) == 0) { printf ("pipe2(O_CLOEXEC) does not set close-on-exit for fd[%d]\n", i); return 1; } } close (fd[0]); close (fd[1]); puts ("OK"); return 0; } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Ulrich Drepper Acked-by: Davide Libenzi Cc: Michael Kerrisk Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

sparc: Merge asm-sparc{,64}/mman.h

2008-07-18T04:41:51+00:00

Renaming the function sparc64_mmap_check() to sparc_mmap_check() was enough to make the two header files identical. :$ diff -u include/asm-sparc/mman.h include/asm-sparc64/mman.h :-- include/asm-sparc/mman.h 2008-06-13 06:46:39.000000000 +0200 :++ include/asm-sparc64/mman.h 2008-06-13 06:46:39.000000000 +0200 :@@ -1,5 +1,5 @@ :-#ifndef __SPARC_MMAN_H__ :-#define __SPARC_MMAN_H__ :+#ifndef __SPARC64_MMAN_H__ :+#define __SPARC64_MMAN_H__ : : #include : :@@ -23,9 +23,9 @@ : : #ifdef __KERNEL__ : #ifndef __ASSEMBLY__ :-#define arch_mmap_check(addr,len,flags) sparc_mmap_check(addr,len) :-int sparc_mmap_check(unsigned long addr, unsigned long len); :+#define arch_mmap_check(addr,len,flags) sparc64_mmap_check(addr,len) :+int sparc64_mmap_check(unsigned long addr, unsigned long len); : #endif : #endif : :-#endif /* __SPARC_MMAN_H__ */ :+#endif /* __SPARC64_MMAN_H__ */ Signed-off-by: Sam Ravnborg

sparc: Fix mremap address range validation.

2008-05-12T23:33:33+00:00

Just like mmap, we need to validate address ranges regardless of MAP_FIXED. sparc{,64}_mmap_check()'s flag argument is unused, remove. Based upon a report and preliminary patch by Jan Lieskovsky Signed-off-by: David S. Miller

sparc: Fix mmap VA span checking.

2008-05-07T09:24:28+00:00

We should not conditionalize VA range checks on MAP_FIXED. Signed-off-by: David S. Miller

[SPARC64]: Fix args to 64-bit sys_semctl() via sys_ipc().

2008-04-25T09:12:05+00:00

Second and third arguments were swapped for whatever reason. Reported by Tom Callaway. Signed-off-by: David S. Miller

[SPARC]: Remove SunOS and Solaris binary support.

2008-04-21T22:10:15+00:00

As per Documentation/feature-removal-schedule.txt Signed-off-by: David S. Miller

[SPARC64]: Fix most sparse warnings in arch/sparc64/kernel/sys_sparc.c

2008-03-26T08:43:29+00:00

Sparse still doesn't like the funny cast we make from a scalar to a "union semun" (which is correct by the C language and in particular works with the sparc64 calling conventions, but sparse doesn't grok that yet). Signed-off-by: David S. Miller

aout: remove unnecessary inclusions of {asm, linux}/a.out.h

2008-02-08T17:22:30+00:00

Remove now unnecessary inclusions of {asm,linux}/a.out.h. [akpm@linux-foundation.org: fix alpha build] Signed-off-by: David Howells Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[SPARC64]: pass correct addr in get_fb_unmapped_area(MAP_FIXED)

2007-10-24T05:42:07+00:00

Looks like the MAP_FIXED case is using the wrong address hint. I'd expect the comment "don't mess with it" means pass the request straight on through, not change the address requested to -ENOMEM. Signed-off-by: Chris Wright Signed-off-by: David S. Miller