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Pull power supply and reset updates from Sebastian Reichel:
- Initial support for the following chips
* max77836 (charger)
* max14577 (charger)
* bq27742 (battery gauge)
* ltc2952 (poweroff)
* stih416 (restart)
* syscon-reboot (restart)
* gpio-restart (restart)
- cleanup of power supply core
- misc fixes in power supply and reset drivers
* tag 'for-v3.18' of git://git.infradead.org/battery-2.6: (48 commits)
power: ab8500_fg: Fix build warning
Documentation: charger: max14577: Update the date of introducing ABI
power: reset: corrections for simple syscon reboot driver
Documentation: power: reset: Add documentation for generic SYSCON reboot driver
power: reset: Add generic SYSCON register mapped reset
bq27x00_battery: Fix flag reading for bq27742
power: reset: use restart_notifier mechanism for msm-poweroff
power: Add simple gpio-restart driver
power: reset: st: Provide DT bindings for ST's Power Reset driver
power: reset: Add restart functionality for STiH41x platforms
power: charger-manager: Fix NULL pointer exception with missing cm-fuel-gauge
power: max14577: Fix circular config SYSFS dependency
power: gpio-charger: do not use gpio value directly
power: max8925: Use of_get_child_by_name
power: max8925: Fix NULL ptr dereference on memory allocation failure
bq27x00_battery: Add support to bq27742
Documentation: charger: max14577: Document exported sysfs entry
devicetree: mfd: max14577: Add device tree bindings document
power: max17040: Add ID for MAX77836 Fuel Gauge block
charger: max14577: Configure battery-dependent settings from DTS and sysfs
...
Conflicts:
drivers/power/reset/Kconfig
drivers/power/reset/Makefile
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph updates from Sage Weil:
"There is the long-awaited discard support for RBD (Guangliang Zhao,
Josh Durgin), a pile of RBD bug fixes that didn't belong in late -rc's
(Ilya Dryomov, Li RongQing), a pile of fs/ceph bug fixes and
performance and debugging improvements (Yan, Zheng, John Spray), and a
smattering of cleanups (Chao Yu, Fabian Frederick, Joe Perches)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (40 commits)
ceph: fix divide-by-zero in __validate_layout()
rbd: rbd workqueues need a resque worker
libceph: ceph-msgr workqueue needs a resque worker
ceph: fix bool assignments
libceph: separate multiple ops with commas in debugfs output
libceph: sync osd op definitions in rados.h
libceph: remove redundant declaration
ceph: additional debugfs output
ceph: export ceph_session_state_name function
ceph: include the initial ACL in create/mkdir/mknod MDS requests
ceph: use pagelist to present MDS request data
libceph: reference counting pagelist
ceph: fix llistxattr on symlink
ceph: send client metadata to MDS
ceph: remove redundant code for max file size verification
ceph: remove redundant io_iter_advance()
ceph: move ceph_find_inode() outside the s_mutex
ceph: request xattrs if xattr_version is zero
rbd: set the remaining discard properties to enable support
rbd: use helpers to handle discard for layered images correctly
...
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Bring in missing osd ops and strings, use macros to eliminate multiple
points of maintenance.
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
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ceph_release_page_vector was defined twice in libceph.h
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
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this allow pagelist to present data that may be sent multiple times.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
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Pull drm updates from Dave Airlie:
"This is the main git pull for the drm,
I pretty much froze major pulls at -rc5/6 time, and haven't had much
fallout, so will probably continue doing that.
Lots of changes all over, big internal header cleanup to make it clear
drm features are legacy things and what are things that modern KMS
drivers should be using. Also big move to use the new generic fences
in all the TTM drivers.
core:
atomic prep work,
vblank rework changes, allows immediate vblank disables
major header reworking and cleanups to better delinate legacy
interfaces from what KMS drivers should be using.
cursor planes locking fixes
ttm:
move to generic fences (affects all TTM drivers)
ppc64 caching fixes
radeon:
userptr support,
uvd for old asics,
reset rework for fence changes
better buffer placement changes,
dpm feature enablement
hdmi audio support fixes
intel:
Cherryview work,
180 degree rotation,
skylake prep work,
execlist command submission
full ppgtt prep work
cursor improvements
edid caching,
vdd handling improvements
nouveau:
fence reworking
kepler memory clock work
gt21x clock work
fan control improvements
hdmi infoframe fixes
DP audio
ast:
ppc64 fixes
caching fix
rcar:
rcar-du DT support
ipuv3:
prep work for capture support
msm:
LVDS support for mdp4, new panel, gpu refactoring
exynos:
exynos3250 SoC support, drop bad mmap interface,
mipi dsi changes, and component match support"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (640 commits)
drm/mst: rework payload table allocation to conform better.
drm/ast: Fix HW cursor image
drm/radeon/kv: add uvd/vce info to dpm debugfs output
drm/radeon/ci: add uvd/vce info to dpm debugfs output
drm/radeon: export reservation_object from dmabuf to ttm
drm/radeon: cope with foreign fences inside the reservation object
drm/radeon: cope with foreign fences inside display
drm/core: use helper to check driver features
drm/radeon/cik: write gfx ucode version to ucode addr reg
drm/radeon/si: print full CS when we hit a packet 0
drm/radeon: remove unecessary includes
drm/radeon/combios: declare legacy_connector_convert as static
drm/radeon/atombios: declare connector convert tables as static
drm/radeon: drop btc_get_max_clock_from_voltage_dependency_table
drm/radeon/dpm: drop clk/voltage dependency filters for BTC
drm/radeon/dpm: drop clk/voltage dependency filters for CI
drm/radeon/dpm: drop clk/voltage dependency filters for SI
drm/radeon/dpm: drop clk/voltage dependency filters for NI
drm/radeon: disable audio when we disable hdmi (v2)
drm/radeon: split audio enable between eg and r600 (v2)
...
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Merge second patch-bomb from Andrew Morton:
- a few hotfixes
- drivers/dma updates
- MAINTAINERS updates
- Quite a lot of lib/ updates
- checkpatch updates
- binfmt updates
- autofs4
- drivers/rtc/
- various small tweaks to less used filesystems
- ipc/ updates
- kernel/watchdog.c changes
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (135 commits)
mm: softdirty: enable write notifications on VMAs after VM_SOFTDIRTY cleared
kernel/param: consolidate __{start,stop}___param[] in <linux/moduleparam.h>
ia64: remove duplicate declarations of __per_cpu_start[] and __per_cpu_end[]
frv: remove unused declarations of __start___ex_table and __stop___ex_table
kvm: ensure hard lockup detection is disabled by default
kernel/watchdog.c: control hard lockup detection default
staging: rtl8192u: use %*pEn to escape buffer
staging: rtl8192e: use %*pEn to escape buffer
staging: wlan-ng: use %*pEhp to print SN
lib80211: remove unused print_ssid()
wireless: hostap: proc: print properly escaped SSID
wireless: ipw2x00: print SSID via %*pE
wireless: libertas: print esaped string via %*pE
lib/vsprintf: add %*pE[achnops] format specifier
lib / string_helpers: introduce string_escape_mem()
lib / string_helpers: refactoring the test suite
lib / string_helpers: move documentation to c-file
include/linux: remove strict_strto* definitions
arch/x86/mm/numa.c: fix boot failure when all nodes are hotpluggable
fs: check bh blocknr earlier when searching lru
...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
"This patch set contains the main portion of the changes for 3.18 in
regard to the s390 architecture. It is a bit bigger than usual,
mainly because of a new driver and the vector extension patches.
The interesting bits are:
- Quite a bit of work on the tracing front. Uprobes is enabled and
the ftrace code is reworked to get some of the lost performance
back if CONFIG_FTRACE is enabled.
- To improve boot time with CONFIG_DEBIG_PAGEALLOC, support for the
IPTE range facility is added.
- The rwlock code is re-factored to improve writer fairness and to be
able to use the interlocked-access instructions.
- The kernel part for the support of the vector extension is added.
- The device driver to access the CD/DVD on the HMC is added, this
will hopefully come in handy to improve the installation process.
- Add support for control-unit initiated reconfiguration.
- The crypto device driver is enhanced to enable the additional AP
domains and to allow the new crypto hardware to be used.
- Bug fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (39 commits)
s390/ftrace: simplify enabling/disabling of ftrace_graph_caller
s390/ftrace: remove 31 bit ftrace support
s390/kdump: add support for vector extension
s390/disassembler: add vector instructions
s390: add support for vector extension
s390/zcrypt: Toleration of new crypto hardware
s390/idle: consolidate idle functions and definitions
s390/nohz: use a per-cpu flag for arch_needs_cpu
s390/vtime: do not reset idle data on CPU hotplug
s390/dasd: add support for control unit initiated reconfiguration
s390/dasd: fix infinite loop during format
s390/mm: make use of ipte range facility
s390/setup: correct 4-level kernel page table detection
s390/topology: call set_sched_topology early
s390/uprobes: architecture backend for uprobes
s390/uprobes: common library for kprobes and uprobes
s390/rwlock: use the interlocked-access facility 1 instructions
s390/rwlock: improve writer fairness
s390/rwlock: remove interrupt-enabling rwlock variant.
s390/mm: remove change bit override support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 seccomp changes from Ingo Molnar:
"This tree includes x86 seccomp filter speedups and related preparatory
work, which touches core seccomp facilities as well.
The main idea is to split seccomp into two phases, to be able to enter
a simple fast path for syscalls with ptrace side effects.
There's no substantial user-visible (and ABI) effects expected from
this, except a change in how we emit a better audit record for
SECCOMP_RET_TRACE events"
* 'x86-seccomp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86_64, entry: Use split-phase syscall_trace_enter for 64-bit syscalls
x86_64, entry: Treat regs->ax the same in fastpath and slowpath syscalls
x86: Split syscall_trace_enter into two phases
x86, entry: Only call user_exit if TIF_NOHZ
x86, x32, audit: Fix x32's AUDIT_ARCH wrt audit
seccomp: Document two-phase seccomp and arch-provided seccomp_data
seccomp: Allow arch code to provide seccomp_data
seccomp: Refactor the filter callback and the API
seccomp,x86,arm,mips,s390: Remove nr parameter from secure_computing
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar:
"The main changes in this tree are:
- fix and update Intel Quark [Galileo] SoC platform support
- update IOSF chipset side band interface and make it available via
debugfs
- enable HPETs on Soekris net6501 and other e6xx based systems"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Add cpu_detect_cache_sizes to init_intel() add Quark legacy_cache()
x86: Quark: Comment setup_arch() to document TLB/PGE bug
x86/intel/quark: Switch off CR4.PGE so TLB flush uses CR3 instead
x86/platform/intel/iosf: Add debugfs config option for IOSF
x86/platform/intel/iosf: Add better description of IOSF driver in config
x86/platform/intel/iosf: Add Braswell PCI ID
x86/platform/pmc_atom: Fix warning when CONFIG_DEBUG_FS=n
x86: HPET force enable for e6xx based systems
x86/iosf: Add debugfs support
x86/iosf: Add Kconfig prompt for IOSF_MBI selection
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For VMAs that don't want write notifications, PTEs created for read faults
have their write bit set. If the read fault happens after VM_SOFTDIRTY is
cleared, then the PTE's softdirty bit will remain clear after subsequent
writes.
Here's a simple code snippet to demonstrate the bug:
char* m = mmap(NULL, getpagesize(), PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_SHARED, -1, 0);
system("echo 4 > /proc/$PPID/clear_refs"); /* clear VM_SOFTDIRTY */
assert(*m == '\0'); /* new PTE allows write access */
assert(!soft_dirty(x));
*m = 'x'; /* should dirty the page */
assert(soft_dirty(x)); /* fails */
With this patch, write notifications are enabled when VM_SOFTDIRTY is
cleared. Furthermore, to avoid unnecessary faults, write notifications
are disabled when VM_SOFTDIRTY is set.
As a side effect of enabling and disabling write notifications with
care, this patch fixes a bug in mprotect where vm_page_prot bits set by
drivers were zapped on mprotect. An analogous bug was fixed in mmap by
commit c9d0bf241451 ("mm: uncached vma support with writenotify").
Signed-off-by: Peter Feiner <pfeiner@google.com>
Reported-by: Peter Feiner <pfeiner@google.com>
Suggested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Jamie Liu <jamieliu@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Consolidate the various external const and non-const declarations of
__start___param[] and __stop___param in <linux/moduleparam.h>. This
requires making a few struct kernel_param pointers in kernel/params.c
const.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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In some cases we don't want hard lockup detection enabled by default.
An example is when running as a guest. Introduce
watchdog_enable_hardlockup_detector(bool)
allowing those cases to disable hard lockup detection. This must be
executed early by the boot processor from e.g. smp_prepare_boot_cpu, in
order to allow kernel command line arguments to override it, as well as
to avoid hard lockup detection being enabled before we've had a chance
to indicate that it's unwanted. In summary,
initial boot: default=enabled
smp_prepare_boot_cpu
watchdog_enable_hardlockup_detector(false): default=disabled
cmdline has 'nmi_watchdog=1': default=enabled
The running kernel still has the ability to enable/disable at any time
with /proc/sys/kernel/nmi_watchdog us usual. However even when the
default has been overridden /proc/sys/kernel/nmi_watchdog will initially
show '1'. To truly turn it on one must disable/enable it, i.e.
echo 0 > /proc/sys/kernel/nmi_watchdog
echo 1 > /proc/sys/kernel/nmi_watchdog
This patch will be immediately useful for KVM with the next patch of this
series. Other hypervisor guest types may find it useful as well.
[akpm@linux-foundation.org: fix build]
[dzickus@redhat.com: fix compile issues on sparc]
Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This is almost the opposite function to string_unescape(). Nevertheless
it handles \0 and could be used for any byte buffer.
The documentation is supplied together with the function prototype.
The test cases covers most of the scenarios and would be expanded later
on.
[akpm@linux-foundation.org: avoid 1k stack consumption]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The introduced function string_escape_mem() is a kind of opposite to
string_unescape. We have several users of such functionality each of
them created custom implementation. The series contains clean up of
test suite, adding new call, and switching few users to use it via %*pE
specifier.
Test suite covers all of existing and most of potential use cases.
This patch (of 11):
The documentation of API belongs to c-file. This patch moves it
accordingly.
There is no functional change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove obsolete and unused strict_strto* functions
Signed-off-by: Daniel Walter <dwalter@google.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The previous patch made strnicmp into a wrapper for strncasecmp.
This patch makes all in-tree users of strnicmp call strncasecmp
directly, while still making sure that the strnicmp symbol can be used
by out-of-tree modules. It should be considered a temporary hack until
all in-tree callers have been converted.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We have a large university system in the UK that is experiencing very long
delays modprobing the driver for a specific I/O device. The delay is from
8-10 minutes per device and there are 31 devices in the system. This 4 to
5 hour delay in starting up those I/O devices is very much a burden on the
customer.
There are two causes for requiring a restart/reload of the drivers. First
is periodic preventive maintenance (PM) and the second is if any of the
devices experience a fatal error. Both of these trigger this excessively
long delay in bringing the system back up to full capability.
The problem was tracked down to a very slow IOREMAP operation and the
excessively long ioresource lookup to insure that the user is not
attempting to ioremap RAM. These patches provide a speed up to that
function.
The modprobe time appears to be affected quite a bit by previous activity
on the ioresource list, which I suspect is due to cache preloading. While
the overall improvement is impacted by other overhead of starting the
devices, this drastically improves the modprobe time.
Also our system is considerably smaller so the percentages gained will not
be the same. Best case improvement with the modprobe on our 20 device
smallish system was from 'real 5m51.913s' to 'real 0m18.275s'.
This patch (of 2):
Since the ioremap operation is verifying that the specified address range
is NOT RAM, it will search the entire ioresource list if the condition is
true. To make matters worse, it does this one 4k page at a time. For a
128M BAR region this is 32 passes to determine the entire region does not
contain any RAM addresses.
This patch provides another resource lookup function, region_is_ram, that
searches for the entire region specified, verifying that it is completely
contained within the resource region. If it is found, then it is checked
to be RAM or not, within a single pass.
The return result reflects if it was found or not (-1), and whether it is
RAM (1) or not (0). This allows the caller to fallback to the previous
page by page search if it was not found.
[akpm@linux-foundation.org: fix spellos and typos in comment]
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Alex Thorlton <athorlton@sgi.com>
Reviewed-by: Cliff Wickman <cpw@sgi.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The comment is copied from Documentation/rbtree.txt, but this comment is
so important that it should also be in the code.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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In locate_mem_hole functions, a memory hole is located and added as
kexec_segment. But from the name of locate_mem_hole, it should only take
responsibility of searching a available memory hole to contain data of a
specified size.
So in this patch add a new field 'mem' into kexec_buf, then take that
kexec segment adding code out of locate_mem_hole_top_down and
locate_mem_hole_bottom_up. This make clear of the functionality of
locate_mem_hole just like it declars to do. And by this
locate_mem_hole_callback chould be used later if anyone want to locate a
memory hole for other use.
Meanwhile Vivek suggested opening code function __kexec_add_segment(),
that way we have to retreive ksegment pointer once and it is easy to read.
So just do it in this patch and remove __kexec_add_segment() since no one
use it anymore.
Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Kill _NSIG_WORDS_is_unsupported_size(), use BUILD_BUG() instead. This
simplifies the code, avoids the nested-externs warnings, and this way we
do not defer the problem to linker.
Also, fix the indentation in _SIG_SET_BINOP() and _SIG_SET_OP().
Note: this patch assumes that the code like "if (0) BUILD_BUG();" is
valid. If not (say __compiletime_error() is not defined and thus
__compiletime_error_fallback() uses a negative array) we should fix
BUILD_BUG() and/or BUILD_BUG_ON_MSG(). This code should be fine by
definition, this is the documented purpose of BUILD_BUG().
[sfr@canb.auug.org.au: fix powerpc build failures]
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The prio_heap code is unused since commit 889ed9ceaa97 ("cgroup: remove
css_scan_tasks()"). It should be compiled out to shrink the binary
kernel size which can be done via introducing CONFIG_PRIO_HEAD or by
removing the code.
We can simply recover the code from git when needed, so it would be
better to remove it IMO.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Francesco Fusco <ffusco@redhat.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: George Spelvin <linux@horizon.com>
Cc: Mark Salter <msalter@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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linux/list.h uses container_of, therefore it depends on linux/kernel.h.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add a function to create CMA region from previously reserved memory and
add support for handling 'shared-dma-pool' reserved-memory device tree
nodes.
Based on previous code provided by Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Laura Abbott <lauraa@codeaurora.org>
Cc: Josh Cartwright <joshc@codeaurora.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We're missing include/linux/compiler-gcc5.h which is required now
because gcc branched off to v5 in trunk.
Just copy the relevant bits out of include/linux/compiler-gcc4.h,
no new code is added as of now.
This fixes a build error when using gcc 5.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"The main changes in this cycle were:
- Optimized support for Intel "Cluster-on-Die" (CoD) topologies (Dave
Hansen)
- Various sched/idle refinements for better idle handling (Nicolas
Pitre, Daniel Lezcano, Chuansheng Liu, Vincent Guittot)
- sched/numa updates and optimizations (Rik van Riel)
- sysbench speedup (Vincent Guittot)
- capacity calculation cleanups/refactoring (Vincent Guittot)
- Various cleanups to thread group iteration (Oleg Nesterov)
- Double-rq-lock removal optimization and various refactorings
(Kirill Tkhai)
- various sched/deadline fixes
... and lots of other changes"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits)
sched/dl: Use dl_bw_of() under rcu_read_lock_sched()
sched/fair: Delete resched_cpu() from idle_balance()
sched, time: Fix build error with 64 bit cputime_t on 32 bit systems
sched: Improve sysbench performance by fixing spurious active migration
sched/x86: Fix up typo in topology detection
x86, sched: Add new topology for multi-NUMA-node CPUs
sched/rt: Use resched_curr() in task_tick_rt()
sched: Use rq->rd in sched_setaffinity() under RCU read lock
sched: cleanup: Rename 'out_unlock' to 'out_free_new_mask'
sched: Use dl_bw_of() under RCU read lock
sched/fair: Remove duplicate code from can_migrate_task()
sched, mips, ia64: Remove __ARCH_WANT_UNLOCKED_CTXSW
sched: print_rq(): Don't use tasklist_lock
sched: normalize_rt_tasks(): Don't use _irqsave for tasklist_lock, use task_rq_lock()
sched: Fix the task-group check in tg_has_rt_tasks()
sched/fair: Leverage the idle state info when choosing the "idlest" cpu
sched: Let the scheduler see CPU idle states
sched/deadline: Fix inter- exclusive cpusets migrations
sched/deadline: Clear dl_entity params when setscheduling to different class
sched/numa: Kill the wrong/dead TASK_DEAD check in task_numa_fault()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Kernel side updates:
- Fix and enhance poll support (Jiri Olsa)
- Re-enable inheritance optimization (Jiri Olsa)
- Enhance Intel memory events support (Stephane Eranian)
- Refactor the Intel uncore driver to be more maintainable (Zheng
Yan)
- Enhance and fix Intel CPU and uncore PMU drivers (Peter Zijlstra,
Andi Kleen)
- [ plus various smaller fixes/cleanups ]
User visible tooling updates:
- Add +field argument support for --field option, so that one can add
fields to the default list of fields to show, ie now one can just
do:
perf report --fields +pid
And the pid will appear in addition to the default fields (Jiri
Olsa)
- Add +field argument support for --sort option (Jiri Olsa)
- Honour -w in the report tools (report, top), allowing to specify
the widths for the histogram entries columns (Namhyung Kim)
- Properly show submicrosecond times in 'perf kvm stat' (Christian
Borntraeger)
- Add beautifier for mremap flags param in 'trace' (Alex Snast)
- perf script: Allow callchains if any event samples them
- Don't truncate Intel style addresses in 'annotate' (Alex Converse)
- Allow profiling when kptr_restrict == 1 for non root users, kernel
samples will just remain unresolved (Andi Kleen)
- Allow configuring default options for callchains in config file
(Namhyung Kim)
- Support operations for shared futexes. (Davidlohr Bueso)
- "perf kvm stat report" improvements by Alexander Yarygin:
- Save pid string in opts.target.pid
- Enable the target.system_wide flag
- Unify the title bar output
- [ plus lots of other fixes and small improvements. ]
Tooling infrastructure changes:
- Refactor unit and scale function parameters for PMU parsing
routines (Matt Fleming)
- Improve DSO long names lookup with rbtree, resulting in great
speedup for workloads with lots of DSOs (Waiman Long)
- We were not handling POLLHUP notifications for event file
descriptors
Fix it by filtering entries in the events file descriptor array
after poll() returns, refcounting mmaps so that when the last fd
pointing to a perf mmap goes away we do the unmap (Arnaldo Carvalho
de Melo)
- Intel PT prep work, from Adrian Hunter, including:
- Let a user specify a PMU event without any config terms
- Add perf-with-kcore script
- Let default config be defined for a PMU
- Add perf_pmu__scan_file()
- Add a 'perf test' for tracking with sched_switch
- Add 'flush' callback to scripting API
- Use ring buffer consume method to look like other tools (Arnaldo
Carvalho de Melo)
- hists browser (used in top and report) refactorings, getting rid of
unused variables and reducing source code size by handling similar
cases in a fewer functions (Namhyung Kim).
- Replace thread unsafe strerror() with strerror_r() accross the
whole tools/perf/ tree (Masami Hiramatsu)
- Rename ordered_samples to ordered_events and allow setting a queue
size for ordering events (Jiri Olsa)
- [ plus lots of fixes, cleanups and other improvements ]"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (198 commits)
perf/x86: Tone down kernel messages when the PMU check fails in a virtual environment
perf/x86/intel/uncore: Fix minor race in box set up
perf record: Fix error message for --filter option not coming after tracepoint
perf tools: Fix build breakage on arm64 targets
perf symbols: Improve DSO long names lookup speed with rbtree
perf symbols: Encapsulate dsos list head into struct dsos
perf bench futex: Sanitize -q option in requeue
perf bench futex: Support operations for shared futexes
perf trace: Fix mmap return address truncation to 32-bit
perf tools: Refactor unit and scale function parameters
perf tools: Fix line number in the config file error message
perf tools: Convert {record,top}.call-graph option to call-graph.record-mode
perf tools: Introduce perf_callchain_config()
perf callchain: Move some parser functions to callchain.c
perf tools: Move callchain config from record_opts to callchain_param
perf hists browser: Fix callchain print bug on TUI
perf tools: Use ACCESS_ONCE() instead of volatile cast
perf tools: Modify error code for when perf_session__new() fails
perf tools: Fix perf record as non root with kptr_restrict == 1
perf stat: Fix --per-core on multi socket systems
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core locking updates from Ingo Molnar:
"The main updates in this cycle were:
- mutex MCS refactoring finishing touches: improve comments, refactor
and clean up code, reduce debug data structure footprint, etc.
- qrwlock finishing touches: remove old code, self-test updates.
- small rwsem optimization
- various smaller fixes/cleanups"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/lockdep: Revert qrwlock recusive stuff
locking/rwsem: Avoid double checking before try acquiring write lock
locking/rwsem: Move EXPORT_SYMBOL() lines to follow function definition
locking/rwlock, x86: Delete unused asm/rwlock.h and rwlock.S
locking/rwlock, x86: Clean up asm/spinlock*.h to remove old rwlock code
locking/semaphore: Resolve some shadow warnings
locking/selftest: Support queued rwlock
locking/lockdep: Restrict the use of recursive read_lock() with qrwlock
locking/spinlocks: Always evaluate the second argument of spin_lock_nested()
locking/Documentation: Update locking/mutex-design.txt disadvantages
locking/Documentation: Move locking related docs into Documentation/locking/
locking/mutexes: Use MUTEX_SPIN_ON_OWNER when appropriate
locking/mutexes: Refactor optimistic spinning code
locking/mcs: Remove obsolete comment
locking/mutexes: Document quick lock release when unlocking
locking/mutexes: Standardize arguments in lock/unlock slowpaths
locking: Remove deprecated smp_mb__() barriers
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"The main changes in this cycle were:
- changes related to No-CBs CPUs and NO_HZ_FULL
- RCU-tasks implementation
- torture-test updates
- miscellaneous fixes
- locktorture updates
- RCU documentation updates"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (81 commits)
workqueue: Use cond_resched_rcu_qs macro
workqueue: Add quiescent state between work items
locktorture: Cleanup header usage
locktorture: Cannot hold read and write lock
locktorture: Fix __acquire annotation for spinlock irq
locktorture: Support rwlocks
rcu: Eliminate deadlock between CPU hotplug and expedited grace periods
locktorture: Document boot/module parameters
rcutorture: Rename rcutorture_runnable parameter
locktorture: Add test scenario for rwsem_lock
locktorture: Add test scenario for mutex_lock
locktorture: Make torture scripting account for new _runnable name
locktorture: Introduce torture context
locktorture: Support rwsems
locktorture: Add infrastructure for torturing read locks
torture: Address race in module cleanup
locktorture: Make statistics generic
locktorture: Teach about lock debugging
locktorture: Support mutexes
locktorture: Add documentation
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
"The big thing in this pile is Eric's unmount-on-rmdir series; we
finally have everything we need for that. The final piece of prereqs
is delayed mntput() - now filesystem shutdown always happens on
shallow stack.
Other than that, we have several new primitives for iov_iter (Matt
Wilcox, culled from his XIP-related series) pushing the conversion to
->read_iter()/ ->write_iter() a bit more, a bunch of fs/dcache.c
cleanups and fixes (including the external name refcounting, which
gives consistent behaviour of d_move() wrt procfs symlinks for long
and short names alike) and assorted cleanups and fixes all over the
place.
This is just the first pile; there's a lot of stuff from various
people that ought to go in this window. Starting with
unionmount/overlayfs mess... ;-/"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (60 commits)
fs/file_table.c: Update alloc_file() comment
vfs: Deduplicate code shared by xattr system calls operating on paths
reiserfs: remove pointless forward declaration of struct nameidata
don't need that forward declaration of struct nameidata in dcache.h anymore
take dname_external() into fs/dcache.c
let path_init() failures treated the same way as subsequent link_path_walk()
fix misuses of f_count() in ppp and netlink
ncpfs: use list_for_each_entry() for d_subdirs walk
vfs: move getname() from callers to do_mount()
gfs2_atomic_open(): skip lookups on hashed dentry
[infiniband] remove pointless assignments
gadgetfs: saner API for gadgetfs_create_file()
f_fs: saner API for ffs_sb_create_file()
jfs: don't hash direct inode
[s390] remove pointless assignment of ->f_op in vmlogrdr ->open()
ecryptfs: ->f_op is never NULL
android: ->f_op is never NULL
nouveau: __iomem misannotations
missing annotation in fs/file.c
fs: namespace: suppress 'may be used uninitialized' warnings
...
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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never used outside and it's too low-level for legitimate uses outside
of fs/dcache.c anyway
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris.
Mostly ima, selinux, smack and key handling updates.
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (65 commits)
integrity: do zero padding of the key id
KEYS: output last portion of fingerprint in /proc/keys
KEYS: strip 'id:' from ca_keyid
KEYS: use swapped SKID for performing partial matching
KEYS: Restore partial ID matching functionality for asymmetric keys
X.509: If available, use the raw subjKeyId to form the key description
KEYS: handle error code encoded in pointer
selinux: normalize audit log formatting
selinux: cleanup error reporting in selinux_nlmsg_perm()
KEYS: Check hex2bin()'s return when generating an asymmetric key ID
ima: detect violations for mmaped files
ima: fix race condition on ima_rdwr_violation_check and process_measurement
ima: added ima_policy_flag variable
ima: return an error code from ima_add_boot_aggregate()
ima: provide 'ima_appraise=log' kernel option
ima: move keyring initialization to ima_init()
PKCS#7: Handle PKCS#7 messages that contain no X.509 certs
PKCS#7: Better handling of unsupported crypto
KEYS: Overhaul key identification when searching for asymmetric keys
KEYS: Implement binary asymmetric key ID handling
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"This set has a few minor updates, but the big change is the redesign
of the trampoline logic.
The trampoline logic of 3.17 required a descriptor for every function
that is registered to be traced and uses a trampoline. Currently,
only the function graph tracer uses a trampoline, but if you were to
trace all 32,000 (give or take a few thousand) functions with the
function graph tracer, it would create 32,000 descriptors to let us
know that there's a trampoline associated with it. This takes up a
bit of memory when there's a better way to do it.
The redesign now reuses the ftrace_ops' (what registers the function
graph tracer) hash tables. The hash tables tell ftrace what the
tracer wants to trace or doesn't want to trace. There's two of them:
one that tells us what to trace, the other tells us what not to trace.
If the first one is empty, it means all functions should be traced,
otherwise only the ones that are listed should be. The second hash
table tells us what not to trace, and if it is empty, all functions
may be traced, and if there's any listed, then those should not be
traced even if they exist in the first hash table.
It took a bit of massaging, but now these hashes can be used to keep
track of what has a trampoline and what does not, and allows the
ftrace accounting to work. Now we can trace all functions when using
the function graph trampoline, and avoid needing to create any special
descriptors to hold all the functions that are being traced"
* tag 'trace-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace: Only disable ftrace_enabled to test buffer in selftest
ftrace: Add sanity check when unregistering last ftrace_ops
kernel: trace_syscalls: Replace rcu_assign_pointer() with RCU_INIT_POINTER()
tracing: generate RCU warnings even when tracepoints are disabled
ftrace: Replace tramp_hash with old_*_hash to save space
ftrace: Annotate the ops operation on update
ftrace: Grab any ops for a rec for enabled_functions output
ftrace: Remove freeing of old_hash from ftrace_hash_move()
ftrace: Set callback to ftrace_stub when no ops are registered
ftrace: Add helper function ftrace_ops_get_func()
ftrace: Add separate function for non recursive callbacks
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Pull networking fixes from David Miller:
"This set fixes a bunch of fallout from the changes that went in during
this merge window, particularly:
- Fix fsl_pq_mdio (Claudiu Manoil) and fm10k (Pranith Kumar) build
failures.
- Several networking drivers do atomic_set() on page counts where
that's not exactly legal. From Eric Dumazet.
- Make __skb_flow_get_ports() work cleanly with unaligned data, from
Alexander Duyck.
- Fix some kernel-doc buglets in rfkill and netlabel, from Fabian
Frederick.
- Unbalanced enable_irq_wake usage in bcmgenet and systemport
drivers, from Florian Fainelli.
- pxa168_eth needs to depend on HAS_DMA, from Geert Uytterhoeven.
- Multi-dequeue in the qdisc layer severely bypasses the fairness
limits the previous code used to enforce, reintroduce in a way that
at the same time doesn't compromise bulk dequeue opportunities.
From Jesper Dangaard Brouer.
- macvlan receive path unnecessarily hops through a softirq by using
netif_rx() instead of netif_receive_skb(). From Jason Baron"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (51 commits)
net: systemport: avoid unbalanced enable_irq_wake calls
net: bcmgenet: avoid unbalanced enable_irq_wake calls
net: bcmgenet: fix off-by-one in incrementing read pointer
net: fix races in page->_count manipulation
mlx4: fix race accessing page->_count
ixgbe: fix race accessing page->_count
igb: fix race accessing page->_count
fm10k: fix race accessing page->_count
net/phy: micrel: Add clock support for KSZ8021/KSZ8031
flow-dissector: Fix alignment issue in __skb_flow_get_ports
net: filter: fix the comments
Documentation: replace __sk_run_filter with __bpf_prog_run
macvlan: optimize the receive path
macvlan: pass 'bool' type to macvlan_count_rx()
drivers: net: xgene: Add 10GbE ethtool support
drivers: net: xgene: Add 10GbE support
drivers: net: xgene: Preparing for adding 10GbE support
dtb: Add 10GbE node to APM X-Gene SoC device tree
Documentation: dts: Update section header for APM X-Gene
MAINTAINERS: Update APM X-Gene section
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux
Pull powerpc updates from Michael Ellerman:
"Here's a first pull request for powerpc updates for 3.18.
The bulk of the additions are for the "cxl" driver, for IBM's Coherent
Accelerator Processor Interface (CAPI). Most of it's in drivers/misc,
which Greg & Arnd maintain, Greg said he was happy for us to take it
through our tree.
There's the usual minor cleanups and fixes, including a bit of noise
in drivers from some of those. A bunch of updates to our EEH code,
which has been getting more testing. Several nice speedups from
Anton, including 20% in clear_page().
And a bunch of updates for freescale from Scott"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (130 commits)
cxl: Fix afu_read() not doing finish_wait() on signal or non-blocking
cxl: Add documentation for userspace APIs
cxl: Add driver to Kbuild and Makefiles
cxl: Add userspace header file
cxl: Driver code for powernv PCIe based cards for userspace access
cxl: Add base builtin support
powerpc/mm: Add hooks for cxl
powerpc/opal: Add PHB to cxl mode call
powerpc/mm: Add new hash_page_mm()
powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts
cxl: Add new header for call backs and structs
powerpc/powernv: Split out set MSI IRQ chip code
powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize
powerpc/msi: Improve IRQ bitmap allocator
powerpc/cell: Make spu_flush_all_slbs() generic
powerpc/cell: Move data segment faulting code out of cell platform
powerpc/cell: Move spu_handle_mm_fault() out of cell platform
powerpc/pseries: Use new defines when calling H_SET_MODE
powerpc: Update contact info in Documentation files
powerpc/perf/hv-24x7: Simplify catalog_read()
...
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Pull file locking related changes from Jeff Layton:
"This release is a little more busy for file locking changes than the
last:
- a set of patches from Kinglong Mee to fix the lockowner handling in
knfsd
- a pile of cleanups to the internal file lease API. This should get
us a bit closer to allowing for setlease methods that can block.
There are some dependencies between mine and Bruce's trees this cycle,
and I based my tree on top of the requisite patches in Bruce's tree"
* tag 'locks-v3.18-1' of git://git.samba.org/jlayton/linux: (26 commits)
locks: fix fcntl_setlease/getlease return when !CONFIG_FILE_LOCKING
locks: flock_make_lock should return a struct file_lock (or PTR_ERR)
locks: set fl_owner for leases to filp instead of current->files
locks: give lm_break a return value
locks: __break_lease cleanup in preparation of allowing direct removal of leases
locks: remove i_have_this_lease check from __break_lease
locks: move freeing of leases outside of i_lock
locks: move i_lock acquisition into generic_*_lease handlers
locks: define a lm_setup handler for leases
locks: plumb a "priv" pointer into the setlease routines
nfsd: don't keep a pointer to the lease in nfs4_file
locks: clean up vfs_setlease kerneldoc comments
locks: generic_delete_lease doesn't need a file_lock at all
nfsd: fix potential lease memory leak in nfs4_setlease
locks: close potential race in lease_get_mtime
security: make security_file_set_fowner, f_setown and __f_setown void return
locks: consolidate "nolease" routines
locks: remove lock_may_read and lock_may_write
lockd: rip out deferred lock handling from testlock codepath
NFSD: Get reference of lockowner when coping file_lock
...
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Pull VFIO updates from Alex Williamson:
- Nested IOMMU extension to type1 (Will Deacon)
- Restore MSIx message before enabling (Gavin Shan)
- Fix remove path locking (Alex Williamson)
* tag 'vfio-v3.18-rc1' of git://github.com/awilliam/linux-vfio:
vfio-pci: Fix remove path locking
drivers/vfio: Export vfio_spapr_iommu_eeh_ioctl() with GPL
vfio/pci: Restore MSIx message prior to enabling
PCI: Export MSI message relevant functions
vfio/iommu_type1: add new VFIO_TYPE1_NESTING_IOMMU IOMMU type
iommu: introduce domain attribute for nesting IOMMUs
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git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux
Pull devicetree changes from Grant Likely:
"This branch contains bug fixes and new features for the devicetree
code.
Most of the changes are either new testcases for the selftest code or
documentation changes. The most notable change is the addition of a
phandle resolver for use when grafting in a second device tree blob
into the core tree. The resolver isn't currently used by anything
other than the selftest module, but it will be used to support device
tree overlays; probably in the v3.19 timeframe.
Also note that I've moved my normal tree from git.secretlab.ca to
git.kernel.org"
* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
of/selftest: Move hash table off stack to fix large frame size
To remove non-ascii characters in of_selftest.txt
of/selftest: Use the resolver to fixup phandles
of: Introduce Device Tree resolve support.
of/selftest: Add a test for duplicate phandles
of: Don't try to search when phandle == 0
of/selftest: Test structure of device tree
of: Fix NULL dereference in selftest removal code
of: add vendor prefix for Chipidea
of: Add vendor prefix for Innolux Corporation
of: Add vendor prefix for Sitronix
devicetree: bindings: Document Gateworks vendor prefix
of: Add vendor prefix for Energy Micro
dt/documentation: add specification of dma bus information
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Pull MMC updates from Ulf Hansson:
"MMC core:
- Fix SDIO IRQ bug
- MMC regulator improvements
- Fix slot-gpio card detect bug
- Add support for Driver Stage Register
- Convert the common MMC OF parser to use GPIO descriptors
- Convert MMC_CAP2_NO_MULTI_READ into a callback, ->multi_io_quirk()
- Some additional minor fixes
MMC host:
- mmci: Support Qualcomm specific DML layer for DMA
- dw_mmc: Use common MMC regulators
- dw_mmc: Add support for Rock-chips RK3288
- tmio: Enable runtime PM support
- tmio: Add support for R-Car Gen2 SoCs
- tmio: Several fixes and improvements
- omap_hsmmc: Removed Balaji from MAINTAINERS
- jz4740: add DMA and pre/post support
- sdhci: Add support for Intel Braswell
- sdhci: Several fixes and improvements"
* tag 'mmc-v3.18-1' of git://git.linaro.org/people/ulf.hansson/mmc: (119 commits)
ARM: dts: fix MMC2 regulators for Exynos5420 Arndale Octa board
mmc: sdhci-acpi: Fix Braswell eMMC timeout clock frequency
mmc: sdhci-acpi: Pass HID and UID to probe_slot
mmc: sdhci-acpi: Get UID directly from acpi_device
mmc, sdhci, bcm-kona, LLVMLinux: Remove use of __initconst
mmc: sdhci-pci: Fix Braswell eMMC timeout clock frequency
mmc: sdhci: Let a driver override timeout clock frequency
mmc: sdhci-pci: Add Bay Trail and Braswell SD card detect
mmc: sdhci-pci: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel BYT host controllers
mmc: sdhci-acpi: Add a HID and UID for a SD Card host controller
mmc: sdhci-acpi: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel host controllers
mmc: sdhci: Add quirk for always getting TC with stop cmd
mmc: core: restore detect line inversion semantics
mmc: Fix incorrect warning when setting 0 Hz via debugfs
mmc: Fix use of wrong device in mmc_gpiod_free_cd()
mmc: atmel-mci: fix mismatched section on atmci_cleanup_slot
mmc: rtsx_pci: Set power related cap2 macros
mmc: core: Add new power_mode MMC_POWER_UNDEFINED
mmc: sdhci: execute tuning when device is not busy
mmc: atmel-mci: Release mmc resources on failure in probe
..
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
Pull edac updates from Mauro Carvalho Chehab:
"Nothing really exiting here: just one bug fix at sb_edac, and some
changes to allow other drivers to use some shared PCI addresses"
* tag 'edac/v3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
sb_edac: Claim a different PCI device
Move Intel SNB device ids from sb_edac to pci_ids.h
sb_edac: avoid INTERNAL ERROR message in EDAC with unspecified channel
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git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull dma-mapping update from Marek Szyprowski:
"Provide the dma write coherent api (available previously on ARM
architecture) for all other architectures, which use dma_ops-based dma
mapping implementation.
This lets one to use the same code in the device drivers regardless of
the selected architecture"
* 'for-v3.18' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
dma-mapping: Provide write-combine allocations
s390: Implement dma_{alloc,free}_attrs()
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull restart handler infrastructure from Guenter Roeck:
"This series was supposed to be pulled through various trees using it,
and I did not plan to send a separate pull request. As it turns out,
the pinctrl tree did not merge with it, is now upstream, and uses it,
meaning there are now build failures.
Please pull this series directly to fix those build failures"
* tag 'restart-handler-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
arm/arm64: unexport restart handlers
watchdog: sunxi: register restart handler with kernel restart handler
watchdog: alim7101: register restart handler with kernel restart handler
watchdog: moxart: register restart handler with kernel restart handler
arm: support restart through restart handler call chain
arm64: support restart through restart handler call chain
power/restart: call machine_restart instead of arm_pm_restart
kernel: add support for kernel restart handler call chain
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The KSZ8021 and KSZ8031 support RMII reference input clocks of 25MHz
and 50MHz. Both PHYs differ in the default frequency they expect
after reset. If this differs from the actual input clock, then
register 0x1f bit 7 must be changed.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Pull percpu updates from Tejun Heo:
"A lot of activities on percpu front. Notable changes are...
- percpu allocator now can take @gfp. If @gfp doesn't contain
GFP_KERNEL, it tries to allocate from what's already available to
the allocator and a work item tries to keep the reserve around
certain level so that these atomic allocations usually succeed.
This will replace the ad-hoc percpu memory pool used by
blk-throttle and also be used by the planned blkcg support for
writeback IOs.
Please note that I noticed a bug in how @gfp is interpreted while
preparing this pull request and applied the fix 6ae833c7fe0c
("percpu: fix how @gfp is interpreted by the percpu allocator")
just now.
- percpu_ref now uses longs for percpu and global counters instead of
ints. It leads to more sparse packing of the percpu counters on
64bit machines but the overhead should be negligible and this
allows using percpu_ref for refcnting pages and in-memory objects
directly.
- The switching between percpu and single counter modes of a
percpu_ref is made independent of putting the base ref and a
percpu_ref can now optionally be initialized in single or killed
mode. This allows avoiding percpu shutdown latency for cases where
the refcounted objects may be synchronously created and destroyed
in rapid succession with only a fraction of them reaching fully
operational status (SCSI probing does this when combined with
blk-mq support). It's also planned to be used to implement forced
single mode to detect underflow more timely for debugging.
There's a separate branch percpu/for-3.18-consistent-ops which cleans
up the duplicate percpu accessors. That branch causes a number of
conflicts with s390 and other trees. I'll send a separate pull
request w/ resolutions once other branches are merged"
* 'for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (33 commits)
percpu: fix how @gfp is interpreted by the percpu allocator
blk-mq, percpu_ref: start q->mq_usage_counter in atomic mode
percpu_ref: make INIT_ATOMIC and switch_to_atomic() sticky
percpu_ref: add PERCPU_REF_INIT_* flags
percpu_ref: decouple switching to percpu mode and reinit
percpu_ref: decouple switching to atomic mode and killing
percpu_ref: add PCPU_REF_DEAD
percpu_ref: rename things to prepare for decoupling percpu/atomic mode switch
percpu_ref: replace pcpu_ prefix with percpu_
percpu_ref: minor code and comment updates
percpu_ref: relocate percpu_ref_reinit()
Revert "blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall during probe"
Revert "percpu: free percpu allocation info for uniprocessor system"
percpu-refcount: make percpu_ref based on longs instead of ints
percpu-refcount: improve WARN messages
percpu: fix locking regression in the failure path of pcpu_alloc()
percpu-refcount: add @gfp to percpu_ref_init()
proportions: add @gfp to init functions
percpu_counter: add @gfp to percpu_counter_init()
percpu_counter: make percpu_counters_lock irq-safe
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
"Nothing too interesting. Just a handful of cleanup patches"
* 'for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
Revert "cgroup: remove redundant variable in cgroup_mount()"
cgroup: remove redundant variable in cgroup_mount()
cgroup: fix missing unlock in cgroup_release_agent()
cgroup: remove CGRP_RELEASABLE flag
perf/cgroup: Remove perf_put_cgroup()
cgroup: remove redundant check in cgroup_ino()
cpuset: simplify proc_cpuset_show()
cgroup: simplify proc_cgroup_show()
cgroup: use a per-cgroup work for release agent
cgroup: remove bogus comments
cgroup: remove redundant code in cgroup_rmdir()
cgroup: remove some useless forward declarations
cgroup: fix a typo in comment.
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata update from Tejun Heo:
"AHCI is getting per-port irq handling and locks for better
scalability. The gain is not huge but measureable with multiple high
iops devices connected to the same host; however, the value of
threaded IRQ handling seems negligible for AHCI and it likely will
revert to non-threaded handling soon.
Another noteworthy change is George Spelvin's "libata: Un-break ATA
blacklist". During 3.17 devel cycle, the libata blacklist glob
matching got generalized and rewritten; unfortunately, the patch
forgot to swap arguments to match the new match function and ended up
breaking blacklist matching completely. It got noticed only a couple
days ago so it couldn't make for-3.17-fixes either. :(
Other than the above two, nothing too interesting - the usual cleanup
churns and device-specific changes"
* 'for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits)
pata_serverworks: disable 64-KB DMA transfers on Broadcom OSB4 IDE Controller
libata: Un-break ATA blacklist
AHCI: Do not acquire ata_host::lock from single IRQ handler
AHCI: Optimize single IRQ interrupt processing
AHCI: Do not read HOST_IRQ_STAT reg in multi-MSI mode
AHCI: Make few function names more descriptive
AHCI: Move host activation code into ahci_host_activate()
AHCI: Move ahci_host_activate() function to libahci.c
AHCI: Pass SCSI host template as arg to ahci_host_activate()
ata: pata_imx: Use the SIMPLE_DEV_PM_OPS() macro
AHCI: Cleanup checking of multiple MSIs/SLM modes
libata-sff: Fix controllers with no ctl port
ahci_xgene: Fix the error print invalid resource for APM X-Gene SoC AHCI SATA Host Controller driver.
libata: change ata_<foo>_printk routines to return void
ata: qcom: Add device tree bindings information
ahci-platform: Bump max number of clocks to 5
ahci: ahci_p5wdh_workaround - constify DMI table
libahci_platform: Staticize ahci_platform_<en/dis>able_phys()
pata_platform: Remove useless irq_flags field
pata_of_platform: Remove "electra-ide" quirk
...
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Merge patch-bomb from Andrew Morton:
- part of OCFS2 (review is laggy again)
- procfs
- slab
- all of MM
- zram, zbud
- various other random things: arch, filesystems.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (164 commits)
nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
include/linux/screen_info.h: remove unused ORIG_* macros
kernel/sys.c: compat sysinfo syscall: fix undefined behavior
kernel/sys.c: whitespace fixes
acct: eliminate compile warning
kernel/async.c: switch to pr_foo()
include/linux/blkdev.h: use NULL instead of zero
include/linux/kernel.h: deduplicate code implementing clamp* macros
include/linux/kernel.h: rewrite min3, max3 and clamp using min and max
alpha: use Kbuild logic to include <asm-generic/sections.h>
frv: remove deprecated IRQF_DISABLED
frv: remove unused cpuinfo_frv and friends to fix future build error
zbud: avoid accessing last unused freelist
zsmalloc: simplify init_zspage free obj linking
mm/zsmalloc.c: correct comment for fullness group computation
zram: use notify_free to account all free notifications
zram: report maximum used memory
zram: zram memory size limitation
zsmalloc: change return value unit of zs_get_total_size_bytes
zsmalloc: move pages_allocated to zs_pool
...
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The ORIG_* macros definitions to access struct screen_info members and all
of their users were removed 7 years ago by commit 3ea335100014785f
("Remove magic macros for screen_info structure members"), but (only) the
definitions reappeared a few days later in commit ee8e7cfe9d330d6f ("Make
asm-x86/bootparam.h includable from userspace.").
Remove them for good. Amen.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Quite useless but it shuts up some warnings.
Signed-off-by: Michele Curti <michele.curti@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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