- 11 Aug, 2014 2 commits
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Ira Weiny authored
Use dev_* style print when struct device is available. Also combine previously line broken user-visible strings as per Documentation/CodingStyle: "However, never break user-visible strings such as printk messages, because that breaks the ability to grep for them." Signed-off-by: Ira Weiny <ira.weiny@intel.com> [ Remove PFX so the patch actually builds. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
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Ira Weiny authored
Use dev_* style print when struct device is available. Also combine previously line broken user-visible strings as per Documentation/CodingStyle: "However, never break user-visible strings such as printk messages, because that breaks the ability to grep for them." Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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- 27 Jul, 2014 5 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Thomas Gleixner: "A bunch of fixes for perf and kprobes: - revert a commit that caused a perf group regression - silence dmesg spam - fix kprobe probing errors on ia64 and ppc64 - filter kprobe faults from userspace - lockdep fix for perf exit path - prevent perf #GP in KVM guest - correct perf event and filters" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: kprobes: Fix "Failed to find blacklist" probing errors on ia64 and ppc64 kprobes/x86: Don't try to resolve kprobe faults from userspace perf/x86/intel: Avoid spamming kernel log for BTS buffer failure perf/x86/intel: Protect LBR and extra_regs against KVM lying perf: Fix lockdep warning on process exit perf/x86/intel/uncore: Fix SNB-EP/IVT Cbox filter mappings perf/x86/intel: Use proper dTLB-load-misses event on IvyBridge perf: Revert ("perf: Always destroy groups on exit")
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Peter Anvin: "A couple of crash fixes, plus a fix that on 32 bits would cause a missing -ENOSYS for nonexistent system calls" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, cpu: Fix cache topology for early P4-SMT x86_32, entry: Store badsys error code in %eax x86, MCE: Robustify mcheck_init_device
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git://git.infradead.org/users/hch/vfsLinus Torvalds authored
Pull vfs fixes from Christoph Hellwig: "A vfsmount leak fix, and a compile warning fix" * 'vfs-for-3.16' of git://git.infradead.org/users/hch/vfs: fs: umount on symlink leaks mnt count direct-io: fix uninitialized warning in do_direct_IO()
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394Linus Torvalds authored
Pull firewire regression fix from Stefan Richter: "IEEE 1394 (FireWire) subsystem fix: MSI don't work on VIA PCIe controllers with some isochronous workloads (regression since v3.16-rc1)" * tag 'firewire-fix-vt6315' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: ohci: disable MSI for VIA VT6315 again
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- 26 Jul, 2014 13 commits
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Linus Torvalds authored
Michel Dänzer and a couple of other people reported inexplicable random oopses in the scheduler, and the cause turns out to be gcc mis-compiling the load_balance() function when debugging is enabled. The gcc bug apparently goes back to gcc-4.5, but slight optimization changes means that it now showed up as a problem in 4.9.0 and 4.9.1. The instruction scheduling problem causes gcc to schedule a spill operation to before the stack frame has been created, which in turn can corrupt the spilled value if an interrupt comes in. There may be other effects of this bug too, but that's the code generation problem seen in Michel's case. This is fixed in current gcc HEAD, but the workaround as suggested by Markus Trippelsdorf is pretty simple: use -fno-var-tracking-assignments when compiling the kernel, which disables the gcc code that causes the problem. This can result in slightly worse debug information for variable accesses, but that is infinitely preferable to actual code generation problems. Doing this unconditionally (not just for CONFIG_DEBUG_INFO) also allows non-debug builds to verify that the debug build would be identical: we can do export GCC_COMPARE_DEBUG=1 to make gcc internally verify that the result of the build is independent of the "-g" flag (it will make the compiler build everything twice, toggling the debug flag, and compare the results). Without the "-fno-var-tracking-assignments" option, the build would fail (even with 4.8.3 that didn't show the actual stack frame bug) with a gcc compare failure. See also gcc bugzilla: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61801Reported-by: Michel Dänzer <michel@daenzer.net> Suggested-by: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: Jakub Jelinek <jakub@redhat.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Hugh Dickins authored
Shortly before 3.16-rc1, Dave Jones reported: WARNING: CPU: 3 PID: 19721 at fs/xfs/xfs_aops.c:971 xfs_vm_writepage+0x5ce/0x630 [xfs]() CPU: 3 PID: 19721 Comm: trinity-c61 Not tainted 3.15.0+ #3 Call Trace: xfs_vm_writepage+0x5ce/0x630 [xfs] shrink_page_list+0x8f9/0xb90 shrink_inactive_list+0x253/0x510 shrink_lruvec+0x563/0x6c0 shrink_zone+0x3b/0x100 shrink_zones+0x1f1/0x3c0 try_to_free_pages+0x164/0x380 __alloc_pages_nodemask+0x822/0xc90 alloc_pages_vma+0xaf/0x1c0 handle_mm_fault+0xa31/0xc50 etc. 970 if (WARN_ON_ONCE((current->flags & (PF_MEMALLOC|PF_KSWAPD)) == 971 PF_MEMALLOC)) I did not respond at the time, because a glance at the PageDirty block in shrink_page_list() quickly shows that this is impossible: we don't do writeback on file pages (other than tmpfs) from direct reclaim nowadays. Dave was hallucinating, but it would have been disrespectful to say so. However, my own /var/log/messages now shows similar complaints WARNING: CPU: 1 PID: 28814 at fs/ext4/inode.c:1881 ext4_writepage+0xa7/0x38b() WARNING: CPU: 0 PID: 27347 at fs/ext4/inode.c:1764 ext4_writepage+0xa7/0x38b() from stressing some mmotm trees during July. Could a dirty xfs or ext4 file page somehow get marked PageSwapBacked, so fail shrink_page_list()'s page_is_file_cache() test, and so proceed to mapping->a_ops->writepage()? Yes, 3.16-rc1's commit 68711a74 ("mm, migration: add destination page freeing callback") has provided such a way to compaction: if migrating a SwapBacked page fails, its newpage may be put back on the list for later use with PageSwapBacked still set, and nothing will clear it. Whether that can do anything worse than issue WARN_ON_ONCEs, and get some statistics wrong, is unclear: easier to fix than to think through the consequences. Fixing it here, before the put_new_page(), addresses the bug directly, but is probably the worst place to fix it. Page migration is doing too many parts of the job on too many levels: fixing it in move_to_new_page() to complement its SetPageSwapBacked would be preferable, except why is it (and newpage->mapping and newpage->index) done there, rather than down in migrate_page_move_mapping(), once we are sure of success? Not a cleanup to get into right now, especially not with memcg cleanups coming in 3.17. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm fixes from Dave Airlie: "This is radeon and intel fixes, and is a small bit larger than I'm guessing you'd like it to be. - i915: fixes 32-bit highmem i915 blank screen, semaphore hang and runtime pm fix - radeon: gpuvm stability fix for hangs since 3.15, and hang/reboot regression on TN/RL devices, The only slightly controversial one is the change to use GB for the vm_size, which I'm letting through as its a new interface we defined in this merge window, and I'd prefer to have the released kernel have the final interface rather than changing it later" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon: fix cut and paste issue for hawaii. drm/radeon: fix irq ring buffer overflow handling drm/i915: Simplify i915_gem_release_all_mmaps() drm/radeon: fix error handling in radeon_vm_bo_set_addr drm/i915: fix freeze with blank screen booting highmem drm/i915: Reorder the semaphore deadlock check, again drm/radeon/TN: only enable bapm on MSI systems drm/radeon: fix VM IB handling drm/radeon: fix handling of radeon_vm_bo_rmv v3 drm/radeon: let's use GB for vm_size (v2)
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "Here contains only the fixes for the new FireWire bebob driver. All fairly trivial and local fixes, so safe to apply" * tag 'sound-3.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: bebob: Correction for return value of special_clk_ctl_put() in error ALSA: bebob: Correction for return value of .put callback ALSA: bebob: Use different labels for digital input/output ALSA: bebob: Fix a missing to unlock mutex in error handling case
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds authored
Pull hwmon fix from Guenter Roeck: "Fixes to temperature limit and vrm write operations in smsc47m192 driver" * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (smsc47m192) Fix temperature limit and vrm write operations
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Randy Dunlap authored
Do not split the PARPORT-related symbols with the new kconfig symbol ARCH_MIGHT_HAVE_PC_PARPORT. The split was causing incorrect display of these symbols -- they were not being displayed together as they should be. Fixes: d90c3eb3 "Kconfig cleanup (PARPORT_PC dependencies)" Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Mark Salter <msalter@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: stable@vger.kernel.org # for 3.13, 3.14, 3.15 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
Merge tag 'blackfin-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux Pull blackfin fixes from Steven Miao: "smc nor flash PM fix, pinctrl group fix, update defconfig, and build fixes" * tag 'blackfin-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux: blackfin: vmlinux.lds.S: reserve 32 bytes space at the end of data section for XIP kernel defconfig: BF609: update spi config name irq: blackfin sec: drop duplicated sec priority set blackfin: bind different groups of one pinmux function to different state name blackfin: fix some bf5xx boards build for missing <linux/gpio.h> pm: bf609: cleanup smc nor flash
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Steven Miao authored
to collect some undefined section to the end of the data section and avoid section overlap Signed-off-by: Steven Miao <realmz6@gmail.com>
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Steven Miao authored
Signed-off-by: Steven Miao <realmz6@gmail.com>
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Steven Miao authored
Signed-off-by: Steven Miao <realmz6@gmail.com>
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Sonic Zhang authored
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Steven Miao <realmz6@gmail.com>
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Steven Miao authored
Signed-off-by: Steven Miao <realmz6@gmail.com>
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Steven Miao authored
drop smc pin state change code, pin state will be saved in pinctrl-adi2 driver cleanup nor flash init/exit for pm suspend/resume Signed-off-by: Steven Miao <realmz6@gmail.com>
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- 25 Jul, 2014 2 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds authored
Pull parisc fixes from Helge Deller: "We have two trivial patches in here. One removes the SA_RESTORER #define since on parisc we don't have the sa_restorer field in struct sigaction, the other patch removes an unnecessary memset(). The SA_RESTORER removal patch is scheduled for stable trees, since without it some userspace apps don't build" * 'parisc-3.16-6' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Eliminate memset after alloc_bootmem_pages parisc: Remove SA_RESTORER define
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuseLinus Torvalds authored
Pull fuse fixes from Miklos Szeredi: "These two pathes fix issues with the kernel-userspace protocol changes in v3.15" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: add FUSE_NO_OPEN_SUPPORT flag to INIT fuse: s_time_gran fix
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- 24 Jul, 2014 14 commits
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H. Peter Anvin authored
Promote one fix for 3.16 This fix was necessary after 9c15a24b ("x86/mce: Improve mcheck_init_device() error handling") went in. What this patch did was, among others, check the return value of misc_register and exit early if it encountered an error. Original code sloppily didn't do that. However, cef12ee5 ("xen/mce: Add mcelog support for Xen platform") made it so that xen's init routine xen_late_init_mcelog runs first. This was needed for the xen mcelog device which is supposed to be independent from the baremetal one. Initially it was reported that misc_register() fails often on xen and that's why it needed fixing. However, it is *supposed* to fail by design, when running in dom0 so that the xen mcelog device file gets registered first. And *then* you need the notifier *not* unregistered on the error path so that the timer does get deleted properly in the CPU hotplug notifier. Btw, this fix is needed also on baremetal in the unlikely event that misc_register(&mce_chrdev_device) fails there too. I was unsure whether to rush it in now and decided to delay it to 3.17. However, xen people wanted it promoted as it breaks xen when doing cpu hotplug there. So, after a bit of simmering in tip/master for initial smoke testing, let's move it to 3.16. It fixes a semi-regression which got introduced in 3.16 so no need for stable tagging. tip/x86/ras contains that exact same commit but we can't remove it there as it is not the last one. It won't cause any merge issues, as I confirmed locally but I should state here the special situation of this one fix explicitly anyway. Thanks. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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Jerome Glisse authored
This is a halfway fix for hawaii acceleration. More fixes to come but hopefully isolated to userspace. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
two more radeon fixes. * 'drm-fixes-3.16' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: fix irq ring buffer overflow handling drm/radeon: fix error handling in radeon_vm_bo_set_addr
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git://anongit.freedesktop.org/drm-intelDave Airlie authored
This time in time! Just 32bit-pae fix from Hugh, semaphores fun from Chris and a fix for runtime pm cherry-picked from next. Paulo is still working on a fix for runtime pm when X does cursor fun when the display is off, but that one isn't ready yet. * tag 'drm-intel-fixes-2014-07-24' of git://anongit.freedesktop.org/drm-intel: drm/i915: Simplify i915_gem_release_all_mmaps() drm/i915: fix freeze with blank screen booting highmem drm/i915: Reorder the semaphore deadlock check, again
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HIMANGI SARAOGI authored
alloc_bootmem and related function always return zeroed region of memory. Thus a memset after calls to these functions is unnecessary. The following Coccinelle semantic patch was used for making the change: @@ expression E,E1; @@ E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...) ... when != E - memset(E,0,E1); Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Helge Deller <deller@gmx.de>
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John David Anglin authored
The sa_restorer field in struct sigaction is obsolete and no longer in the parisc implementation. However, the core code assumes the field is present if SA_RESTORER is defined. So, the define needs to be removed. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: <stable@vger.kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
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Guenter Roeck authored
Temperature limit clamps are applied after converting the temperature from milli-degrees C to degrees C, so either the clamp limit needs to be specified in degrees C, not milli-degrees C, or clamping must happen before converting to degrees C. Use the latter method to avoid overflows. vrm is an u8, so the written value needs to be limited to [0, 255]. Cc: Axel Lin <axel.lin@ingics.com> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
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Vasily Averin authored
Currently umount on symlink blocks following umount: /vz is separate mount # ls /vz/ -al | grep test drwxr-xr-x. 2 root root 4096 Jul 19 01:14 testdir lrwxrwxrwx. 1 root root 11 Jul 19 01:16 testlink -> /vz/testdir # umount -l /vz/testlink umount: /vz/testlink: not mounted (expected) # lsof /vz # umount /vz umount: /vz: device is busy. (unexpected) In this case mountpoint_last() gets an extra refcount on path->mnt Signed-off-by: Vasily Averin <vvs@openvz.org> Acked-by: Ian Kent <raven@themaw.net> Acked-by: Jeff Layton <jlayton@primarydata.com> Cc: stable@vger.kernel.org Signed-off-by: Christoph Hellwig <hch@lst.de>
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Boaz Harrosh authored
The following warnings: fs/direct-io.c: In function ‘__blockdev_direct_IO’: fs/direct-io.c:1011:12: warning: ‘to’ may be used uninitialized in this function [-Wmaybe-uninitialized] fs/direct-io.c:913:16: note: ‘to’ was declared here fs/direct-io.c:1011:12: warning: ‘from’ may be used uninitialized in this function [-Wmaybe-uninitialized] fs/direct-io.c:913:10: note: ‘from’ was declared here are false positive because dio_get_page() either fails, or sets both 'from' and 'to'. Paul Bolle said ... Maybe it's better to move initializing "to" and "from" out of dio_get_page(). That _might_ make it easier for both the the reader and the compiler to understand what's going on. Something like this: Christoph Hellwig said ... The fix of moving the code definitively looks nicer, while I think uninitialized_var is horrible wart that won't get anywhere near my code. Boaz Harrosh: I agree with Christoph and Paul Signed-off-by: Boaz Harrosh <boaz@plexistor.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
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git://linux-nfs.org/~bfields/linuxLinus Torvalds authored
Pull nfsd bugfix from Bruce Fields: "Another regression from the xdr encoding rewrite" * 'for-3.16' of git://linux-nfs.org/~bfields/linux: NFSD: Fix crash encoding lock reply on 32-bit
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fix from Catalin Marinas: "Fix arm64 regression introduced by limiting the CMA buffer to ZONE_DMA on platforms where RAM starts above 4GB (and ZONE_DMA becoming 0)" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Create non-empty ZONE_DMA when DRAM starts above 4GB
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git://github.com/czankel/xtensa-linuxLinus Torvalds authored
Pull Xtensa fixes from Chris Zankel: - resolve FIXMEs in double exception handler for window overflow. This fix makes native building of linux on xtensa host possible; - fix sysmem region removal issue introduced in 3.15. * tag 'xtensa-next-20140721' of git://github.com/czankel/xtensa-linux: xtensa: fix sysmem reservation at the end of existing block xtensa: add fixup for double exception raised in window overflow
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds authored
Pull pin control fixes from Linus Walleij: "Here are three pin control fixes for the v3.16 series. Sorry that some of these arrive late, the summer heat in Sweden makes me slow. - an IRQ handling fix for the STi driver, also for stable - another IRQ fix for the RCAR GPIO driver - a MAINTAINERS entry" * tag 'pinctrl-v3.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: gpio: rcar: Add support for DT IRQ flags MAINTAINERS: Add entry for the Renesas pin controller driver pinctrl: st: Fix irqmux handler
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libataLinus Torvalds authored
Pull libata regression fix from Tejun Heo: "The last libata/for-3.16-fixes pull contained a regression introduced by 1871ee13 ("libata: support the ata host which implements a queue depth less than 32") which in turn was a fix for a regression introduced earlier while changing queue tag order to accomodate hard drives which perform poorly if tags are not allocated in circular order (ugh...). The regression happens only for SAS controllers making use of libata to serve ATA devices. They don't fill an ata_host field which is used by the new tag allocation function leading to NULL dereference. This patch adds a new intermediate field ata_host->n_tags which is initialized for both SAS and !SAS cases to fix the issue" * 'for-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata: introduce ata_host->n_tags to avoid oops on SAS controllers
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- 23 Jul, 2014 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input layer fixes from Dmitry Torokhov: "A few fixups for the input subsystem" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: document INPUT_PROP_TOPBUTTONPAD Input: fix defuzzing logic Input: sirfsoc-onkey - fix GPL v2 license string typo Input: st-keyscan - fix 'defined but not used' compiler warnings Input: synaptics - add min/max quirk for pnp-id LEN2002 (Edge E531) Input: i8042 - add Acer Aspire 5710 to nomux blacklist Input: ti_am335x_tsc - warn about incorrect spelling Input: wacom - cleanup multitouch code when touch_max is 2
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
Pull powerpc fixes from Ben Herrenschmidt: "Here is a handful of powerpc fixes for 3.16. They are all pretty simple and self contained and should still make this release" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: use _GLOBAL_TOC for memmove powerpc/pseries: dynamically added OF nodes need to call of_node_init powerpc: subpage_protect: Increase the array size to take care of 64TB powerpc: Fix bugs in emulate_step() powerpc: Disable doorbells on Power8 DD1.x
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmLinus Torvalds authored
Pull slab fix from Mike Snitzer: "This fixes the broken duplicate slab name check in kmem_cache_sanity_check() that has been repeatedly reported (as recently as today against Fedora rawhide). Pekka seemed to have it staged for a late 3.15-rc in his 'slab/urgent' branch but never sent a pull request, see: https://lkml.org/lkml/2014/5/23/648" * tag 'urgent-slab-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: slab_common: fix the check for duplicate slab names
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Linus Torvalds authored
Merge fixes from Andrew Morton: "10 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm: hugetlb: fix copy_hugetlb_page_range() simple_xattr: permit 0-size extended attributes mm/fs: fix pessimization in hole-punching pagecache shmem: fix splicing from a hole while it's punched shmem: fix faulting into a hole, not taking i_mutex mm: do not call do_fault_around for non-linear fault sh: also try passing -m4-nofpu for SH2A builds zram: avoid lockdep splat by revalidate_disk mm/rmap.c: fix pgoff calculation to handle hugepage correctly coredump: fix the setting of PF_DUMPCORE
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