deliverable/linux.git
10 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Thu, 19 Sep 2013 17:52:25 +0000 (12:52 -0500)] 
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS updates from Ralf Baechle:
 - Minor updates and fixes to the Octeon ethernet driver in staging
 - A fix to VGA_MAP_MEM() for 64 bit platforms
 - Fix a workaround for 74K/1074K processors
 - The symlink arch/mips/boot/dts/include/dt-bindings was pointing to a
   a file with a name ending in \n.  I think this may have been caused
   by a git bug with with patches sent by email
 - A build fix for VGA console on BCM1480-based systems
 - Fix PCI device access via "/sys/bus/pci/.../resource0" or similar
   work for Alchemy platforms
 - Fix potential data leak on MIPS R5 cores.  This doesn't add proper
   support for any R5 features, just ensures a kernel without such
   support will be secure to run
 - Adding a macros for the CP0 Config5 register to be used by the R5 fix
 - Make get_cycles() actually return something useful where possible
   This also requires a preparatory patch for performance sake
 - Fix a warning about the use of smp_processor_id() in preemptible
   code.  Again this includes a preparatory patch adding the
   infrastructure to be used by the actual patch
 - Finally remove pointless one-line comment

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Fix invalid symbolic link file
  MIPS: PCI: pci-bcm1480: Include missing vt.h header
  MIPS: Disable usermode switching of the FR bit for MIPS R5 CPUs.
  MIPS: Add MIPS R5 config5 register.
  MIPS: PCI: Use pci_resource_to_user to map pci memory space properly
  MIPS: 74K/1074K: Correct erratum workaround.
  MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks
  MIPS: Remove useless comment about kprobe from arch/mips/Makefile
  MIPS: Fix VGA_MAP_MEM macro.
  MIPS: Reimplement get_cycles().
  MIPS: Optimize current_cpu_type() for better code.
  MIPS: Fix accessing to per-cpu data when flushing the cache
  MIPS: Provide nice way to access boot CPU's data.
  staging: octeon-ethernet: rgmii: enable interrupts that we can handle
  staging: octeon-ethernet: remove skb alloc failure warnings
  staging: octeon-ethernet: make dropped packets to consume NAPI budget

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Thu, 19 Sep 2013 17:50:37 +0000 (12:50 -0500)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull ceph fixes from Sage Weil:
 "These fix several bugs with RBD from 3.11 that didn't get tested in
  time for the merge window: some error handling, a use-after-free, and
  a sequencing issue when unmapping and image races with a notify
  operation.

  There is also a patch fixing a problem with the new ceph + fscache
  code that just went in"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  fscache: check consistency does not decrement refcount
  rbd: fix error handling from rbd_snap_name()
  rbd: ignore unmapped snapshots that no longer exist
  rbd: fix use-after free of rbd_dev->disk
  rbd: make rbd_obj_notify_ack() synchronous
  rbd: complete notifies before cleaning up osd_client and rbd_dev
  libceph: add function to ensure notifies are complete

10 years agoMIPS: Fix invalid symbolic link file
Madhavan Srinivasan [Thu, 19 Sep 2013 13:09:08 +0000 (18:39 +0530)] 
MIPS: Fix invalid symbolic link file

Commit 3b29aa5ba204c [MIPS: add <dt-bindings/> symlink] created a symlink
file in include/dt-bindings.  Even though commit diff is fine, the symlink
is invalid and ls -lb shows a newline character at the end of the filename:

lrwxrwxrwx 1 maddy maddy 35 Sep 19 18:11 dt-bindings ->
../../../../../include/dt-bindings\n

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: steven.hill@imgtec.com
Cc: mmarek@suse.cz
Cc: swarren@nvidia.com
Cc: linux-mips@linux-mips.org
Cc: linux-kbuild@vger.kernel.org
Cc: james.hogan@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/5859/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: PCI: pci-bcm1480: Include missing vt.h header
Markos Chandras [Thu, 19 Sep 2013 09:27:52 +0000 (10:27 +0100)] 
MIPS: PCI: pci-bcm1480: Include missing vt.h header

It's needed for the MAX_NR_CONSOLES macro.

Fixes the following build problem on a randconfig:

arch/mips/pci/pci-bcm1480.c: In function 'bcm1480_pcibios_init':
arch/mips/pci/pci-bcm1480.c:261:36: error: 'MAX_NR_CONSOLES'
undeclared (first use in this function)
arch/mips/pci/pci-bcm1480.c:261:36: note: each undeclared
identifier is reported only once for each function it appears in
make[1]: *** [arch/mips/pci/pci-bcm1480.o] Error 1

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5858/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Disable usermode switching of the FR bit for MIPS R5 CPUs.
Ralf Baechle [Thu, 19 Sep 2013 09:15:49 +0000 (11:15 +0200)] 
MIPS: Disable usermode switching of the FR bit for MIPS R5 CPUs.

Currently the kernel will always use the FR=0 register model for O32.  If
an O32 application did enable FR=1 mode, some data from another application
might be leaked in the extra registers becoming visible.

Iow, this patch is meant to make the kernel MIPS R5 tolerant but leaves
proper MIPS R5 support to a future patchset.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Add MIPS R5 config5 register.
Ralf Baechle [Thu, 19 Sep 2013 09:09:48 +0000 (11:09 +0200)] 
MIPS: Add MIPS R5 config5 register.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Thu, 19 Sep 2013 02:17:44 +0000 (21:17 -0500)] 
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm radeon/nouveau/core fixes from Dave Airlie:
 "Mostly radeon fixes, with some nouveau bios parser, ttm fix and a fix
  for AST driver"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (42 commits)
  drm/fb-helper: don't sleep for screen unblank when an oops is in progress
  drm, ttm Fix uninitialized warning
  drm/ttm: fix the tt_populated check in ttm_tt_destroy()
  drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path
  drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM
  drm/nouveau/kms: enable for non-vga pci classes
  drm/nouveau/bios/init: stub opcode 0xaa
  drm/radeon: avoid UVD corruptions on AGP cards
  drm/radeon: fix panel scaling with eDP and LVDS bridges
  drm/radeon/dpm: rework auto performance level enable
  drm/radeon: Fix hmdi typo
  drm/radeon/dpm/rs780: fix force_performance state for same sclks
  drm/radeon/dpm/rs780: don't enable sclk scaling if not required
  drm/radeon/dpm/rs780: add some sanity checking to sclk scaling
  drm/radeon/dpm/rs780: use drm_mode_vrefresh()
  drm/udl: rip out set_need_resched
  drm/ast: fix the ast open key function
  drm/radeon/dpm: add bapm callback for kb/kv
  drm/radeon/dpm: add bapm callback for trinity
  drm/radeon/dpm: add infrastructure to properly handle bapm
  ...

10 years agodrm/fb-helper: don't sleep for screen unblank when an oops is in progress
Daniel Vetter [Fri, 13 Sep 2013 21:49:57 +0000 (14:49 -0700)] 
drm/fb-helper: don't sleep for screen unblank when an oops is in progress

Otherwise the system will burn even brighter and worse, leave the user
wondering what's going on exactly.

Since we already have a panic handler which will (try) to restore the
entire fbdev console mode, we can just bail out.  Inspired by a patch from
Konstantin Khlebnikov.  The callchain leading to this, cut&pasted from
Konstantin's original patch:

callstack:
panic()
bust_spinlocks(1)
unblank_screen()
vc->vc_sw->con_blank()
fbcon_blank()
fb_blank()
info->fbops->fb_blank()
drm_fb_helper_blank()
drm_fb_helper_dpms()
drm_modeset_lock_all()
mutex_lock(&dev->mode_config.mutex)

Note that the entire locking in the fb helper around panic/sysrq and kdbg
is ...  non-existant.  So we have a decent change of blowing up
everything.  But since reworking this ties in with funny concepts like the
fbdev notifier chain or the impressive things which happen around
console_lock while oopsing, I'll leave that as an exercise for braver
souls than me.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Dave Airlie <airlied@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm, ttm Fix uninitialized warning
Prarit Bhargava [Fri, 13 Sep 2013 12:33:34 +0000 (08:33 -0400)] 
drm, ttm Fix uninitialized warning

Fix uninitialized warning.

drivers/gpu/drm/ttm/ttm_object.c: In function ‘ttm_base_object_lookup’:
drivers/gpu/drm/ttm/ttm_object.c:213:10: error: ‘base’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
  kref_put(&base->refcount, ttm_release_base);
          ^
drivers/gpu/drm/ttm/ttm_object.c:221:26: note: ‘base’ was declared here
  struct ttm_base_object *base;

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ttm: fix the tt_populated check in ttm_tt_destroy()
Ben Skeggs [Tue, 17 Sep 2013 04:21:15 +0000 (14:21 +1000)] 
drm/ttm: fix the tt_populated check in ttm_tt_destroy()

After a vmalloc failure in ttm_dma_tt_alloc_page_directory(),
ttm_dma_tt_init() will call ttm_tt_destroy() to cleanup, and end up
inside the driver's unpopulate() hook when populate() has never yet
been called.

On nouveau, the first issue to be hit because of this is that
dma_address[] may be a NULL pointer.  After working around this,
ttm_pool_unpopulate() may potentially hit the same issue with
the pages[] array.

It seems to make more sense to avoid calling unpopulate on already
unpopulated TTMs than to add checks to all the implementations.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Cc: stable@vger.kernel.org
Cc: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux...
Dave Airlie [Thu, 19 Sep 2013 01:47:23 +0000 (11:47 +1000)] 
Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes

A couple of bios parser fixes (one for ancient chips, another for new ones - important in Optimus configs).  Another to make sure KMS is enabled on certain Optimus configs, and a TTM failure path fix.

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
  drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path
  drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM
  drm/nouveau/kms: enable for non-vga pci classes
  drm/nouveau/bios/init: stub opcode 0xaa

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Thu, 19 Sep 2013 00:22:22 +0000 (19:22 -0500)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull vfs fixes from Al Viro:
 "atomic_open-related fixes (Miklos' series, with EEXIST-related parts
  replaced with fix in fs/namei.c:atomic_open() instead of messing with
  the instances) + race fix in autofs + leak on failure exit in 9p"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  9p: don't forget to destroy inode cache if fscache registration fails
  atomic_open: take care of EEXIST in no-open case with O_CREAT|O_EXCL in fs/namei.c
  vfs: don't set FILE_CREATED before calling ->atomic_open()
  nfs: set FILE_CREATED
  gfs2: set FILE_CREATED
  cifs: fix filp leak in cifs_atomic_open()
  vfs: improve i_op->atomic_open() documentation
  autofs4: close the races around autofs4_notify_daemon()

10 years agoMIPS: PCI: Use pci_resource_to_user to map pci memory space properly
Wolfgang Grandegger [Mon, 13 Dec 2010 20:48:10 +0000 (21:48 +0100)] 
MIPS: PCI: Use pci_resource_to_user to map pci memory space properly

[ralf@linux-mips.org: This only matters to Alchemy platforms.  On other
platforms fixup_bigphys_addr is just an identidy mapping.]

Signed-off-by: Wolfgang Grandegger <wg@denx.de>
Cc: tiejun.chen <tiejun.chen@windriver.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/1868/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: 74K/1074K: Correct erratum workaround.
Maciej W. Rozycki [Wed, 18 Sep 2013 18:08:15 +0000 (19:08 +0100)] 
MIPS: 74K/1074K: Correct erratum workaround.

Make sure 74K revision numbers are not applied to the 1074K.  Also catch
invalid usage.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5857/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Cleanup CP0 PRId and CP1 FPIR register access masks
Maciej W. Rozycki [Tue, 17 Sep 2013 15:58:10 +0000 (16:58 +0100)] 
MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks

Replace hardcoded CP0 PRId and CP1 FPIR register access masks throughout.
The change does not touch places that use shifted or partial masks.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5838/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMerge tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl...
Linus Torvalds [Wed, 18 Sep 2013 17:39:40 +0000 (12:39 -0500)] 
Merge tag 'please-pull-pstore' of git://git./linux/kernel/git/aegl/linux

Pull pstore/compression fixes from Tony Luck:
 "Three pstore fixes related to compression:
   1) Better adjustment of size of compression buffer (was too big for
      EFIVARS backend resulting in compression failure
   2) Use zlib_inflateInit2 instead of zlib_inflateInit
   3) Don't print messages about compression failure.  They will waste
      space that may better be used to log console output leading to the
      crash"

* tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  pstore: Remove the messages related to compression failure
  pstore: Use zlib_inflateInit2 instead of zlib_inflateInit
  pstore: Adjust buffer size for compression for smaller registered buffers

10 years agoMIPS: Remove useless comment about kprobe from arch/mips/Makefile
Wu Zhangjin [Tue, 9 Nov 2010 16:25:53 +0000 (00:25 +0800)] 
MIPS: Remove useless comment about kprobe from arch/mips/Makefile

The commit c1bf207d6ee1eb72e9c10365edbdc7c9ff7fb9b0 (kernel.org) rsp.
58e9ad32a48dce37ffeea912f55bd1c94b85ad7f (lmo) [MIPS: kprobe: Add support]
introduced a useless comment.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: David Daney <ddaney@caviumnetworks.com>
Patchwork: https://patchwork.linux-mips.org/patch/1765/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 18 Sep 2013 16:26:17 +0000 (11:26 -0500)] 
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Misc fixes"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/intel/lpss: Add pin control support to Intel low power subsystem
  perf/x86/intel: Mark MEM_LOAD_UOPS_MISS_RETIRED as precise on SNB
  x86: Remove now-unused save_rest()
  x86/smpboot: Fix announce_cpu() to printk() the last "OK" properly

10 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 18 Sep 2013 16:24:49 +0000 (11:24 -0500)] 
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fix from Ingo Molnar:
 "An NTP related lockup fix"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timekeeping: Fix HRTICK related deadlock from ntp lock changes

10 years agoMerge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 18 Sep 2013 16:23:32 +0000 (11:23 -0500)] 
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "Misc fixes"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix comment for sched_info_depart
  sched/Documentation: Update sched-design-CFS.txt documentation
  sched/debug: Take PID namespace into account
  sched/fair: Fix small race where child->se.parent,cfs_rq might point to invalid ones

10 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 18 Sep 2013 16:22:53 +0000 (11:22 -0500)] 
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Two small fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Fix UAPI export of PERF_EVENT_IOC_ID
  perf/x86/intel: Fix Silvermont offcore masks

10 years agoMIPS: Fix VGA_MAP_MEM macro.
Leonid Yegoshin [Wed, 11 Sep 2013 00:36:04 +0000 (19:36 -0500)] 
MIPS: Fix VGA_MAP_MEM macro.

Use the CKSEG1ADDR macro when calculating VGA_MAP_MEM.

[ralf@linux-mips.org: Include <asm/addrspace.h for CKSEG1ADDR.]

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5814/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Reimplement get_cycles().
Ralf Baechle [Thu, 12 Sep 2013 11:47:32 +0000 (13:47 +0200)] 
MIPS: Reimplement get_cycles().

This essentially reverts commit efb9ca08b5a2374b29938cdcab417ce4feb14b54
(kernel.org) / 58020a106879a8b372068741c81f0015c9b0b96dbv [[MIPS] Change
get_cycles to always return 0.]

Most users of get_cycles() invoke it as a timing interface.  That's why
in modern kernels it was never very much missed for.  /dev/random however
uses get_cycles() in the how the jitter in the interrupt timing contains
some useful entropy.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoperf: Fix UAPI export of PERF_EVENT_IOC_ID
Vince Weaver [Tue, 17 Sep 2013 18:53:41 +0000 (14:53 -0400)] 
perf: Fix UAPI export of PERF_EVENT_IOC_ID

Without the following patch I have problems compiling code using
the new PERF_EVENT_IOC_ID ioctl().  It looks like u64 was used
instead of __u64

Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1309171450380.11444@vincent-weaver-1.um.maine.edu
Signed-off-by: Ingo Molnar <mingo@kernel.org>
10 years ago9p: don't forget to destroy inode cache if fscache registration fails
Al Viro [Tue, 17 Sep 2013 12:10:18 +0000 (08:10 -0400)] 
9p: don't forget to destroy inode cache if fscache registration fails

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Wed, 18 Sep 2013 02:20:30 +0000 (22:20 -0400)] 
Merge branch 'fixes' of git://git./virt/kvm/kvm

Pull KVM fixes from Gleb Natapov.

* 'fixes' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: VMX: set "blocked by NMI" flag if EPT violation happens during IRET from NMI
  kvm: free resources after canceling async_pf
  KVM: nEPT: reset PDPTR register cache on nested vmentry emulation
  KVM: mmu: allow page tables to be in read-only slots
  KVM: x86 emulator: emulate RETF imm

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Wed, 18 Sep 2013 01:54:05 +0000 (21:54 -0400)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

Pull HID updates from Jiri Kosina:
 "Fixes for CVE-2013-2897, CVE-2013-2895, CVE-2013-2897, CVE-2013-2894,
  CVE-2013-2893, CVE-2013-2891, CVE-2013-2890, CVE-2013-2889.

  All the bugs are triggerable only by specially crafted evil-on-purpose
  HW devices.  Fixes by Kees Cook and Benjamin Tissoires"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: lenovo-tpkbd: fix leak if tpkbd_probe_tp fails
  HID: multitouch: validate indexes details
  HID: logitech-dj: validate output report details
  HID: validate feature and input report details
  HID: lenovo-tpkbd: validate output report details
  HID: LG: validate HID output report details
  HID: steelseries: validate output report details
  HID: sony: validate HID output report details
  HID: zeroplus: validate output report details
  HID: provide a helper for validating hid reports

10 years agotty: disassociate_ctty() sends the extra SIGCONT
Oleg Nesterov [Sun, 15 Sep 2013 15:50:26 +0000 (17:50 +0200)] 
tty: disassociate_ctty() sends the extra SIGCONT

Starting from v3.10 (probably commit f91e2590410b: "tty: Signal
foreground group processes in hangup") disassociate_ctty() sends SIGCONT
if tty && on_exit.  This breaks LSB test-suite, in particular test8 in
_exit.c and test40 in sigcon5.c.

Put the "!on_exit" check back to restore the old behaviour.

Review by Peter Hurley:
 "Yes, this regression was introduced by me in that commit.  The effect
  of the regression is that ptys will receive a SIGCONT when, in similar
  circumstances, ttys would not.

  The fact that two test vectors accidentally tripped over this
  regression suggests that some other apps may as well.

  Thanks for catching this"

Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Karel Srot <ksrot@redhat.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoatomic_open: take care of EEXIST in no-open case with O_CREAT|O_EXCL in fs/namei.c
Al Viro [Mon, 16 Sep 2013 23:22:33 +0000 (19:22 -0400)] 
atomic_open: take care of EEXIST in no-open case with O_CREAT|O_EXCL in fs/namei.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agoMIPS: Optimize current_cpu_type() for better code.
Ralf Baechle [Tue, 17 Sep 2013 08:25:47 +0000 (10:25 +0200)] 
MIPS: Optimize current_cpu_type() for better code.

 o Move current_cpu_type() to a separate header file
 o #ifdefing on supported CPU types lets modern GCC know that certain
   code in callers may be discarded ideally turning current_cpu_type() into
   a function returning a constant.
 o Use current_cpu_type() rather than direct access to struct cpuinfo_mips.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5833/

10 years agoKVM: VMX: set "blocked by NMI" flag if EPT violation happens during IRET from NMI
Gleb Natapov [Sun, 15 Sep 2013 08:07:23 +0000 (11:07 +0300)] 
KVM: VMX: set "blocked by NMI" flag if EPT violation happens during IRET from NMI

Set "blocked by NMI" flag if EPT violation happens during IRET from NMI
otherwise NMI can be called recursively causing stack corruption.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
10 years agoMIPS: Fix accessing to per-cpu data when flushing the cache
Ralf Baechle [Tue, 17 Sep 2013 10:44:31 +0000 (12:44 +0200)] 
MIPS: Fix accessing to per-cpu data when flushing the cache

This fixes the following issue

BUG: using smp_processor_id() in preemptible [00000000] code: kjournald/1761
caller is blast_dcache32+0x30/0x254
Call Trace:
[<8047f02c>] dump_stack+0x8/0x34
[<802e7e40>] debug_smp_processor_id+0xe0/0xf0
[<80114d94>] blast_dcache32+0x30/0x254
[<80118484>] r4k_dma_cache_wback_inv+0x200/0x288
[<80110ff0>] mips_dma_map_sg+0x108/0x180
[<80355098>] ide_dma_prepare+0xf0/0x1b8
[<8034eaa4>] do_rw_taskfile+0x1e8/0x33c
[<8035951c>] ide_do_rw_disk+0x298/0x3e4
[<8034a3c4>] do_ide_request+0x2e0/0x704
[<802bb0dc>] __blk_run_queue+0x44/0x64
[<802be000>] queue_unplugged.isra.36+0x1c/0x54
[<802beb94>] blk_flush_plug_list+0x18c/0x24c
[<802bec6c>] blk_finish_plug+0x18/0x48
[<8026554c>] journal_commit_transaction+0x3b8/0x151c
[<80269648>] kjournald+0xec/0x238
[<8014ac00>] kthread+0xb8/0xc0
[<8010268c>] ret_from_kernel_thread+0x14/0x1c

Caches in most systems are identical - but not always, so we can't avoid
the use of smp_call_function() by just looking at the boot CPU's data,
have to fiddle with preemption instead.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5835

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Linus Torvalds [Tue, 17 Sep 2013 15:40:49 +0000 (11:40 -0400)] 
Merge git://git./linux/kernel/git/cmetcalf/linux-tile

Pull more tile architecture updates from Chris Metcalf:
 "This second batch of changes is just cleanup of various kinds from
  doing some tidying work in the sources.

  Some dead code is removed, comment typos fixed, whitespace and style
  issues cleaned up, and some header updates from our internal
  "upstream" architecture team"

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: remove stray blank space
  tile: <arch/> header updates from upstream
  tile: improve gxio iorpc autogenerated code style
  tile: double default VMALLOC space
  tile: remove stale arch/tile/kernel/futex_64.S
  tile: remove HUGE_VMAP dead code
  tile: use pmd_pfn() instead of casting via pte_t
  tile: fix typos in comment in arch/tile/kernel/unaligned.c

10 years agodrm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path
Ben Skeggs [Tue, 17 Sep 2013 04:13:32 +0000 (14:13 +1000)] 
drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path

TTM calls the destructor on its own already...

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM
Ben Skeggs [Tue, 17 Sep 2013 00:20:31 +0000 (10:20 +1000)] 
drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau/kms: enable for non-vga pci classes
Ben Skeggs [Tue, 10 Sep 2013 03:20:34 +0000 (13:20 +1000)] 
drm/nouveau/kms: enable for non-vga pci classes

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau/bios/init: stub opcode 0xaa
Ben Skeggs [Tue, 10 Sep 2013 02:11:01 +0000 (12:11 +1000)] 
drm/nouveau/bios/init: stub opcode 0xaa

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agoMIPS: Provide nice way to access boot CPU's data.
Ralf Baechle [Tue, 17 Sep 2013 11:58:12 +0000 (13:58 +0200)] 
MIPS: Provide nice way to access boot CPU's data.

boot_cpu_data is used the same as current_cpu_data but returns the CPU
data for CPU 0.  This means it doesn't have to use smp_processor_id()
thus no need to disable preemption.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agokvm: free resources after canceling async_pf
Radim Krčmář [Wed, 4 Sep 2013 20:32:23 +0000 (22:32 +0200)] 
kvm: free resources after canceling async_pf

When we cancel 'async_pf_execute()', we should behave as if the work was
never scheduled in 'kvm_setup_async_pf()'.
Fixes a bug when we can't unload module because the vm wasn't destroyed.

Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoKVM: nEPT: reset PDPTR register cache on nested vmentry emulation
Gleb Natapov [Mon, 2 Sep 2013 12:25:28 +0000 (15:25 +0300)] 
KVM: nEPT: reset PDPTR register cache on nested vmentry emulation

After nested vmentry stale cache can be used to reload L2 PDPTR pointers
which will cause L2 guest to fail. Fix it by invalidating cache on nested
vmentry emulation.

https://bugzilla.kernel.org/show_bug.cgi?id=60830

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoKVM: mmu: allow page tables to be in read-only slots
Paolo Bonzini [Mon, 9 Sep 2013 11:52:33 +0000 (13:52 +0200)] 
KVM: mmu: allow page tables to be in read-only slots

Page tables in a read-only memory slot will currently cause a triple
fault because the page walker uses gfn_to_hva and it fails on such a slot.

OVMF uses such a page table; however, real hardware seems to be fine with
that as long as the accessed/dirty bits are set.  Save whether the slot
is readonly, and later check it when updating the accessed and dirty bits.

Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agoKVM: x86 emulator: emulate RETF imm
Bruce Rogers [Mon, 9 Sep 2013 15:40:20 +0000 (09:40 -0600)] 
KVM: x86 emulator: emulate RETF imm

Opcode CA

This gets used by a DOS based NetWare guest.

Signed-off-by: Bruce Rogers <brogers@suse.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
10 years agostaging: octeon-ethernet: rgmii: enable interrupts that we can handle
Aaro Koskinen [Thu, 5 Sep 2013 18:44:01 +0000 (21:44 +0300)] 
staging: octeon-ethernet: rgmii: enable interrupts that we can handle

Enable only those interrupts that we can handle & acknowledge in the
interrupt handler.

At least on EdgeRouter Lite, the hardware may occasionally interrupt with
some error condition when the physical link status changes frequently.
Since the interrupt condition is not acked properly, this leads to the
following warning and the IRQ gets disabled completely:

[   41.324700] eth0: Link down
[   44.324721] eth0: 1000 Mbps Full duplex, port  0, queue  0
[   44.885590] irq 117: nobody cared (try booting with the "irqpoll" option)
[   44.892397] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-rc5-edge-los.git-27d042f-dirty-00950-gaa42f2d-dirty #8
[   44.902825] Stack : ffffffff815c0000 0000000000000004 0000000000000003 0000000000000000
  ffffffff81fd0000 ffffffff815c0000 0000000000000004 ffffffff8118530c
  ffffffff815c0000 ffffffff811858d8 0000000000000000 0000000000000000
  ffffffff81fd0000 ffffffff81fc0000 ffffffff8152f3a0 ffffffff815b7bf7
  ffffffff81fc6688 ffffffff815b8060 0000000000000000 0000000000000000
  0000000000000000 ffffffff815346c8 ffffffff815346b0 ffffffff814a6a18
  ffffffff8158b848 ffffffff81145614 ffffffff81593800 ffffffff81187174
  ffffffff815b7d00 ffffffff8158b760 0000000000000000 ffffffff814a9184
  0000000000000000 0000000000000000 0000000000000000 0000000000000000
  0000000000000000 ffffffff811203b8 0000000000000000 0000000000000000
  ...
[   44.968408] Call Trace:
[   44.970873] [<ffffffff811203b8>] show_stack+0x68/0x80
[   44.975937] [<ffffffff814a9184>] dump_stack+0x78/0xb8
[   44.980999] [<ffffffff811aac54>] __report_bad_irq+0x44/0x108
[   44.986662] [<ffffffff811ab238>] note_interrupt+0x248/0x2a0
[   44.992240] [<ffffffff811a85e4>] handle_irq_event_percpu+0x144/0x200
[   44.998598] [<ffffffff811a86f4>] handle_irq_event+0x54/0x90
[   45.004176] [<ffffffff811ab908>] handle_level_irq+0xd0/0x148
[   45.009839] [<ffffffff811a7b04>] generic_handle_irq+0x34/0x50
[   45.015589] [<ffffffff8111dae8>] do_IRQ+0x18/0x30
[   45.020301] [<ffffffff8110486c>] plat_irq_dispatch+0x74/0xb8
[   45.025958]
[   45.027451] handlers:
[   45.029731] [<ffffffff813fca10>] cvm_oct_rgmii_rml_interrupt
[   45.035397] Disabling IRQ #117
[   45.038742] Port 0 receive error code 13, packet dropped
[   46.324719] eth0: Link down
[   48.324733] eth0: 1000 Mbps Full duplex, port  0, queue  0

Reported-by: "Jason A. Donenfeld" <Jason@zx2c4.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Cc: linux-mips@linux-mips.org
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: richard@nod.at
Patchwork: https://patchwork.linux-mips.org/patch/5810/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agostaging: octeon-ethernet: remove skb alloc failure warnings
Aaro Koskinen [Thu, 5 Sep 2013 18:44:00 +0000 (21:44 +0300)] 
staging: octeon-ethernet: remove skb alloc failure warnings

Remove skb allocation failure warnings. They will trigger a page
allocation warning already. Also, one of the warnings was not ratelimited,
causing the box to lock up under heavy traffic & low memory.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Cc: linux-mips@linux-mips.org
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: richard@nod.at
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Patchwork: https://patchwork.linux-mips.org/patch/5811/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agostaging: octeon-ethernet: make dropped packets to consume NAPI budget
Aaro Koskinen [Thu, 5 Sep 2013 18:43:59 +0000 (21:43 +0300)] 
staging: octeon-ethernet: make dropped packets to consume NAPI budget

We should count also dropped packets, otherwise the NAPI handler may
end up running too long.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Cc: linux-mips@linux-mips.org
Cc: David Daney <david.daney@cavium.com>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: richard@nod.at
Patchwork: https://patchwork.linux-mips.org/patch/5809/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agovfs: don't set FILE_CREATED before calling ->atomic_open()
Miklos Szeredi [Mon, 16 Sep 2013 12:52:05 +0000 (14:52 +0200)] 
vfs: don't set FILE_CREATED before calling ->atomic_open()

If O_CREAT|O_EXCL are passed to open, then we know that either

 - the file is successfully created, or
 - the operation fails in some way.

So previously we set FILE_CREATED before calling ->atomic_open() so the
filesystem doesn't have to.  This, however, led to bugs in the
implementation that went unnoticed when the filesystem didn't check for
existence, yet returned success.  To prevent this kind of bug, require
filesystems to always explicitly set FILE_CREATED on O_CREAT|O_EXCL and
verify this in the VFS.

Also added a couple more verifications for the result of atomic_open():

 - Warn if filesystem set FILE_CREATED despite the lack of O_CREAT.
 - Warn if filesystem set FILE_CREATED but gave a negative dentry.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agonfs: set FILE_CREATED
Miklos Szeredi [Mon, 16 Sep 2013 12:52:04 +0000 (14:52 +0200)] 
nfs: set FILE_CREATED

Set FILE_CREATED on O_CREAT|O_EXCL.  If the NFS server honored our request
for exclusivity then this must be correct.

Currently this is a no-op, since the VFS sets FILE_CREATED anyway.  The
next patch will, however, require this flag to be always set by
filesystems.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agogfs2: set FILE_CREATED
Miklos Szeredi [Mon, 16 Sep 2013 12:52:03 +0000 (14:52 +0200)] 
gfs2: set FILE_CREATED

In gfs2_create_inode() set FILE_CREATED in *opened.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agocifs: fix filp leak in cifs_atomic_open()
Miklos Szeredi [Mon, 16 Sep 2013 12:51:59 +0000 (14:51 +0200)] 
cifs: fix filp leak in cifs_atomic_open()

If an error occurs after having called finish_open() then fput() needs to
be called on the already opened file.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Steve French <sfrench@samba.org>
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agovfs: improve i_op->atomic_open() documentation
Miklos Szeredi [Mon, 16 Sep 2013 12:51:55 +0000 (14:51 +0200)] 
vfs: improve i_op->atomic_open() documentation

Fix documentation of ->atomic_open() and related functions: finish_open()
and finish_no_open().  Also add details that seem to be unclear and a
source of bugs (some of which are fixed in the following series).

Cc-ing maintainers of all filesystems implementing ->atomic_open().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Sage Weil <sage@inktank.com>
Cc: Steve French <sfrench@samba.org>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agoautofs4: close the races around autofs4_notify_daemon()
Al Viro [Sat, 14 Sep 2013 21:32:12 +0000 (17:32 -0400)] 
autofs4: close the races around autofs4_notify_daemon()

Don't drop ->wq_mutex before calling autofs4_notify_daemon() only to regain it
there.  Besides being pointless, that opens a race window where autofs4_wait_release()
could've come and freed wq->name.name.  And do the debugging printk in the "reused an
existing wq" case before dropping ->wq_mutex - the same reason...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Ian Kent <raven@themaw.net>
10 years agoLinux 3.12-rc1
Linus Torvalds [Mon, 16 Sep 2013 20:17:51 +0000 (16:17 -0400)] 
Linux 3.12-rc1

10 years agoMerge branch 'timers/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Linus Torvalds [Mon, 16 Sep 2013 20:10:26 +0000 (16:10 -0400)] 
Merge branch 'timers/core' of git://git./linux/kernel/git/tip/tip

Pull timer code update from Thomas Gleixner:
 - armada SoC clocksource overhaul with a trivial merge conflict
 - Minor improvements to various SoC clocksource drivers

* 'timers/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: armada-370-xp: Add detailed clock requirements in devicetree binding
  clocksource: armada-370-xp: Get reference fixed-clock by name
  clocksource: armada-370-xp: Replace WARN_ON with BUG_ON
  clocksource: armada-370-xp: Fix device-tree binding
  clocksource: armada-370-xp: Introduce new compatibles
  clocksource: armada-370-xp: Use CLOCKSOURCE_OF_DECLARE
  clocksource: armada-370-xp: Simplify TIMER_CTRL register access
  clocksource: armada-370-xp: Use BIT()
  ARM: timer-sp: Set dynamic irq affinity
  ARM: nomadik: add dynamic irq flag to the timer
  clocksource: sh_cmt: 32-bit control register support
  clocksource: em_sti: Convert to devm_* managed helpers

10 years agotile: remove stray blank space
Chris Metcalf [Mon, 16 Sep 2013 18:41:21 +0000 (14:41 -0400)] 
tile: remove stray blank space

The compat sys_llseek() definition addition added a bogus space
on an otherwise-blank line.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
10 years agotile: <arch/> header updates from upstream
Chris Metcalf [Mon, 16 Sep 2013 18:18:21 +0000 (14:18 -0400)] 
tile: <arch/> header updates from upstream

The hardware architecture descriptor headers have been updated, in
particular to reflect some larger MMIO fields on the mPIPE shims for
controlling the network hardware, from the recent Gx72 release.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
10 years agotile: improve gxio iorpc autogenerated code style
Chris Metcalf [Mon, 16 Sep 2013 17:52:45 +0000 (13:52 -0400)] 
tile: improve gxio iorpc autogenerated code style

Fix some whitespace style issues in some auto-generated files.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
10 years agotile: double default VMALLOC space
Chris Metcalf [Mon, 16 Sep 2013 17:02:57 +0000 (13:02 -0400)] 
tile: double default VMALLOC space

With per-cpu data as well as loaded kernel modules coming from
the vmalloc arena, we get close to the line all the time and
occasionally need more than we had, so just double it up by default.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
10 years agoMerge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Mon, 16 Sep 2013 19:39:21 +0000 (15:39 -0400)] 
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS fixes from Steve French:
 "Two minor cifs fixes and a minor documentation cleanup for cifs.txt"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: update cifs.txt and remove some outdated infos
  cifs: Avoid calling unlock_page() twice in cifs_readpage() when using fscache
  cifs: Do not take a reference to the page in cifs_readpage_worker()

10 years agoMerge tag 'upstream-3.12-rc1' of git://git.infradead.org/linux-ubi
Linus Torvalds [Mon, 16 Sep 2013 19:37:52 +0000 (15:37 -0400)] 
Merge tag 'upstream-3.12-rc1' of git://git.infradead.org/linux-ubi

Pull UBI fixes from Artem Bityutskiy:
 "Just a single fastmap fix plus a regression fix"

* tag 'upstream-3.12-rc1' of git://git.infradead.org/linux-ubi:
  UBI: Fix invalidate_fastmap()
  UBI: Fix PEB leak in wear_leveling_worker()

10 years agoMerge tag 'upstream-3.12-rc1' of git://git.infradead.org/linux-ubifs
Linus Torvalds [Mon, 16 Sep 2013 19:36:55 +0000 (15:36 -0400)] 
Merge tag 'upstream-3.12-rc1' of git://git.infradead.org/linux-ubifs

Pull ubifs fix from Artem Bityutskiy:
 "Just one patch which fixes the power-cut recovery testing mode.

  I'll start using a single UBI/UBIFS tree instead of 2 trees from now
  on.  So in the future you'll get 1 small pull request instead of 2
  tiny ones"

* tag 'upstream-3.12-rc1' of git://git.infradead.org/linux-ubifs:
  UBIFS: remove invalid warn msg with tst_recovery enabled

10 years agopstore: Remove the messages related to compression failure
Aruna Balakrishnaiah [Wed, 11 Sep 2013 17:58:23 +0000 (10:58 -0700)] 
pstore: Remove the messages related to compression failure

Remove the messages indicating compression failure as it will
add to the space during panic path.

Reported-by: Seiji Aguchi <seiji.aguchi@hds.com>
Tested-by: Seiji Aguchi <seiji.aguchi@hds.com>
Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
10 years agopstore: Use zlib_inflateInit2 instead of zlib_inflateInit
Aruna Balakrishnaiah [Wed, 11 Sep 2013 17:58:03 +0000 (10:58 -0700)] 
pstore: Use zlib_inflateInit2 instead of zlib_inflateInit

Since zlib_deflateInit2() is used for specifying window bit during compression,
zlib_inflateInit2() is appropriate for decompression.

Reported-by: Seiji Aguchi <seiji.aguchi@hds.com>
Tested-by: Seiji Aguchi <seiji.aguchi@hds.com>
Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
10 years agopstore: Adjust buffer size for compression for smaller registered buffers
Aruna Balakrishnaiah [Wed, 11 Sep 2013 17:57:41 +0000 (10:57 -0700)] 
pstore: Adjust buffer size for compression for smaller registered buffers

When backends (ex: efivars) have smaller registered buffers, the
big_oops_buf is too big for them as number of repeated occurences
in the text captured will be less. What happens is that pstore takes
too big a bite from the dmesg log and then finds it cannot compress it
enough to meet the backend block size. Patch takes care of adjusting
the buffer size based on the registered buffer size. cmpr values have
been arrived after doing experiments with plain text for buffers of
size 1k - 4k (Smaller the buffer size repeated occurence will be less)
and with sample crash log for buffers ranging from 4k - 10k.

Reported-by: Seiji Aguchi <seiji.aguchi@hds.com>
Tested-by: Seiji Aguchi <seiji.aguchi@hds.com>
Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
10 years agosched: Fix comment for sched_info_depart
Michael S. Tsirkin [Mon, 16 Sep 2013 08:30:36 +0000 (11:30 +0300)] 
sched: Fix comment for sched_info_depart

sched_info_depart seems to be only called from
sched_info_switch(), so only on involuntary task switch.

Fix the comment to match.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Link: http://lkml.kernel.org/r/20130916083036.GA1113@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
10 years agoMerge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Mon, 16 Sep 2013 01:36:19 +0000 (11:36 +1000)] 
Merge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

A few more radeon fixes.  A fix for UVD on AGP cards, a fix for non-full
screen scaling on laptop panels with DP bridge chips, and a bunch of dpm
fixes.

* 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: avoid UVD corruptions on AGP cards
  drm/radeon: fix panel scaling with eDP and LVDS bridges
  drm/radeon/dpm: rework auto performance level enable
  drm/radeon: Fix hmdi typo
  drm/radeon/dpm/rs780: fix force_performance state for same sclks
  drm/radeon/dpm/rs780: don't enable sclk scaling if not required
  drm/radeon/dpm/rs780: add some sanity checking to sclk scaling
  drm/radeon/dpm/rs780: use drm_mode_vrefresh()

10 years agodrm/radeon: avoid UVD corruptions on AGP cards
Christian König [Sun, 15 Sep 2013 11:31:28 +0000 (13:31 +0200)] 
drm/radeon: avoid UVD corruptions on AGP cards

Putting everything into VRAM seems to help.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
10 years agodrm/radeon: fix panel scaling with eDP and LVDS bridges
Alex Deucher [Fri, 13 Sep 2013 22:33:16 +0000 (18:33 -0400)] 
drm/radeon: fix panel scaling with eDP and LVDS bridges

We were using the wrong set_properly callback so we always
ended up with Full scaling even if something else (Center or
Full aspect) was selected.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
10 years agodrm/radeon/dpm: rework auto performance level enable
Alex Deucher [Fri, 13 Sep 2013 18:07:03 +0000 (14:07 -0400)] 
drm/radeon/dpm: rework auto performance level enable

Calling force_performance_level() from set_power_state()
doesn't work on some asics because the current power
state pointer has not been properly updated at that point.
Move the calls to force_performance_level() out of the
asic specific set_power_state() functions and into
the main power state sequence.

Fixes dpm resume on SI.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: Fix hmdi typo
Damien Lespiau [Fri, 13 Sep 2013 15:37:28 +0000 (16:37 +0100)] 
drm/radeon: Fix hmdi typo

I keep making that one, so checked if I was the only one. Apparently
not.

Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon/dpm/rs780: fix force_performance state for same sclks
Alex Deucher [Fri, 13 Sep 2013 15:04:28 +0000 (11:04 -0400)] 
drm/radeon/dpm/rs780: fix force_performance state for same sclks

If the low and high sclks within a power state are the same,
there no need to enable sclk scaling.  Enabling sclk scaling
can cause display stability issues on some boards.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
10 years agodrm/radeon/dpm/rs780: don't enable sclk scaling if not required
Alex Deucher [Fri, 13 Sep 2013 14:55:10 +0000 (10:55 -0400)] 
drm/radeon/dpm/rs780: don't enable sclk scaling if not required

If the low and high sclks are the same, there is no need to
enable sclk scaling.  This causes display stability issues on
certain boards.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60857

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com>
10 years agodrm/radeon/dpm/rs780: add some sanity checking to sclk scaling
Alex Deucher [Fri, 13 Sep 2013 13:57:50 +0000 (09:57 -0400)] 
drm/radeon/dpm/rs780: add some sanity checking to sclk scaling

Since the clock scaling is based on fb divider adjustments,
make sure the other pll parameters are the same.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
10 years agodrm/radeon/dpm/rs780: use drm_mode_vrefresh()
Alex Deucher [Fri, 13 Sep 2013 13:23:48 +0000 (09:23 -0400)] 
drm/radeon/dpm/rs780: use drm_mode_vrefresh()

Rather than open coding it.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
10 years agodrm/udl: rip out set_need_resched
Daniel Vetter [Thu, 12 Sep 2013 15:57:29 +0000 (17:57 +0200)] 
drm/udl: rip out set_need_resched

This very much looks like copypasta from drm/i915's fault handler.
It was used there to duct-tape over issues around gpu reset handling.

Since that can't ever happen for udl and there's seemingly no other
reason for this just drop it.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Sun, 15 Sep 2013 22:31:52 +0000 (08:31 +1000)] 
Merge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

Radeon drm fixes for 3.12.  All over the place (display, dpm, uvd, etc.).
Also adds a couple more berlin pci ids.

* 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux: (25 commits)
  drm/radeon/dpm: add bapm callback for kb/kv
  drm/radeon/dpm: add bapm callback for trinity
  drm/radeon/dpm: add infrastructure to properly handle bapm
  drm/radeon/dpm: handle bapm on kb/kv
  drm/radeon/dpm: handle bapm on trinity
  drm/radeon: expose DPM thermal thresholds through sysfs
  drm/radeon: simplify driver data retrieval
  drm/radeon/atom: workaround vbios bug in transmitter table on rs880 (v2)
  drm/radeon/dpm: fix fallback for empty UVD clocks
  drm/radeon: add command submission tracepoint
  drm/radeon: remove stale radeon_fence_retire tracepoint
  drm/radeon/r6xx: add a stubbed out set_uvd_clocks callback
  drm/radeon: fix typo in PG flags
  drm/radeon: add some additional berlin pci ids
  drm/radeon/cik: update gpu_init for an additional berlin gpu
  drm/radeon: add spinlocks for indirect register accesss
  drm/radeon: protect concurrent smc register access with a spinlock
  drm/radeon: dpm updates for KV
  drm/radeon: signedness bug in kv_dpm.c
  drm/radeon: clean up r600_free_extended_power_table()
  ...

10 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Sun, 15 Sep 2013 21:45:52 +0000 (17:45 -0400)] 
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS fixes from Ralf Baechle:
 "These are four patches for three construction sites:

   - Fix register decoding for the combination of multi-core processors
     and multi-threading.

   - Two more fixes that are part of the ongoing DECstation resurrection
     work.  One of these touches a DECstation-only network driver.

   - Finally Markos' trivial build fix for the AP/SP support.

  (With this applied now all MIPS defconfigs are building again)"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: kernel: vpe: Make vpe_attrs an array of pointers.
  MIPS: Fix SMP core calculations when using MT support.
  MIPS: DECstation I/O ASIC DMA interrupt handling fix
  MIPS: DECstation HRT initialization rearrangement

10 years agoMerge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Linus Torvalds [Sun, 15 Sep 2013 21:42:59 +0000 (17:42 -0400)] 
Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

Pull x86 platform updates from Matthew Garrett:
 "Nothing amazing here, almost entirely cleanups and minor bugfixes and
  one bit of hardware enablement in the amilo-rfkill driver"

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
  platform/x86: panasonic-laptop: reuse module_acpi_driver
  samsung-laptop: fix config build error
  platform: x86: remove unnecessary platform_set_drvdata()
  amilo-rfkill: Enable using amilo-rfkill with the FSC Amilo L1310.
  wmi: parse_wdg() should return kernel error codes
  hp_wmi: Fix unregister order in hp_wmi_rfkill_setup()
  platform: replace strict_strto*() with kstrto*()
  x86: irst: use module_acpi_driver to simplify the code
  x86: smartconnect: use module_acpi_driver to simplify the code
  platform samsung-q10: use ACPI instead of direct EC calls
  thinkpad_acpi: add the ability setting TPACPI_LED_NONE by quirk
  thinkpad_acpi: return -NODEV while operating uninitialized LEDs

10 years agoMerge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 15 Sep 2013 21:41:30 +0000 (17:41 -0400)] 
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi

Pull misc SCSI driver updates from James Bottomley:
 "This patch set is a set of driver updates (megaraid_sas, fnic, lpfc,
  ufs, hpsa) we also have a couple of bug fixes (sd out of bounds and
  ibmvfc error handling) and the first round of esas2r checker fixes and
  finally the much anticipated big endian additions for megaraid_sas"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (47 commits)
  [SCSI] fnic: fnic Driver Tuneables Exposed through CLI
  [SCSI] fnic: Kernel panic while running sh/nosh with max lun cfg
  [SCSI] fnic: Hitting BUG_ON(io_req->abts_done) in fnic_rport_exch_reset
  [SCSI] fnic: Remove QUEUE_FULL handling code
  [SCSI] fnic: On system with >1.1TB RAM, VIC fails multipath after boot up
  [SCSI] fnic: FC stat param seconds_since_last_reset not getting updated
  [SCSI] sd: Fix potential out-of-bounds access
  [SCSI] lpfc 8.3.42: Update lpfc version to driver version 8.3.42
  [SCSI] lpfc 8.3.42: Fixed issue of task management commands having a fixed timeout
  [SCSI] lpfc 8.3.42: Fixed inconsistent spin lock usage.
  [SCSI] lpfc 8.3.42: Fix driver's abort loop functionality to skip IOs already getting aborted
  [SCSI] lpfc 8.3.42: Fixed failure to allocate SCSI buffer on PPC64 platform for SLI4 devices
  [SCSI] lpfc 8.3.42: Fix WARN_ON when driver unloads
  [SCSI] lpfc 8.3.42: Avoided making pci bar ioremap call during dual-chute WQ/RQ pci bar selection
  [SCSI] lpfc 8.3.42: Fixed driver iocbq structure's iocb_flag field running out of space
  [SCSI] lpfc 8.3.42: Fix crash on driver load due to cpu affinity logic
  [SCSI] lpfc 8.3.42: Fixed logging format of setting driver sysfs attributes hard to interpret
  [SCSI] lpfc 8.3.42: Fixed back to back RSCNs discovery failure.
  [SCSI] lpfc 8.3.42: Fixed race condition between BSG I/O dispatch and timeout handling
  [SCSI] lpfc 8.3.42: Fixed function mode field defined too small for not recognizing dual-chute mode
  ...

10 years agoMerge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
Linus Torvalds [Sun, 15 Sep 2013 11:15:06 +0000 (07:15 -0400)] 
Merge branch 'slab/next' of git://git./linux/kernel/git/penberg/linux

Pull SLAB update from Pekka Enberg:
 "Nothing terribly exciting here apart from Christoph's kmalloc
  unification patches that brings sl[aou]b implementations closer to
  each other"

* 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  slab: Use correct GFP_DMA constant
  slub: remove verify_mem_not_deleted()
  mm/sl[aou]b: Move kmallocXXX functions to common code
  mm, slab_common: add 'unlikely' to size check of kmalloc_slab()
  mm/slub.c: beautify code for removing redundancy 'break' statement.
  slub: Remove unnecessary page NULL check
  slub: don't use cpu partial pages on UP
  mm/slub: beautify code for 80 column limitation and tab alignment
  mm/slub: remove 'per_cpu' which is useless variable

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Sun, 15 Sep 2013 11:13:39 +0000 (07:13 -0400)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

Pull input update from Dmitry Torokhov:
 "The only change is David Hermann's new EVIOCREVOKE evdev ioctl that
  allows safely passing file descriptors to input devices to session
  processes and later being able to stop delivery of events through
  these fds so that inactive sessions will no longer receive user input
  that does not belong to them"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: evdev - add EVIOCREVOKE ioctl

10 years agovfs: fix typo in comment in recent dentry work
Linus Torvalds [Sun, 15 Sep 2013 11:11:01 +0000 (07:11 -0400)] 
vfs: fix typo in comment in recent dentry work

Sedat points out that I transposed some letters in "LRU" and wrote "RLU"
instead in one of the new comments explaining the flow.  Let's just fix
it.

Reported-by: Sedat Dilek <sedat.dilek@jpberlin.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agopartitions/efi: loosen check fot pmbr size in lba
Davidlohr Bueso [Fri, 13 Sep 2013 22:02:22 +0000 (15:02 -0700)] 
partitions/efi: loosen check fot pmbr size in lba

Matt found that commit 27a7c642174e ("partitions/efi: account for pmbr
size in lba") caused his GPT formatted eMMC device not to boot.  The
reason is that this commit enforced Linux to always check the lesser of
the whole disk or 2Tib for the pMBR size in LBA.  While most disk
partitioning tools out there create a pMBR with these characteristics,
Microsoft does not, as it always sets the entry to the maximum 32-bit
limitation - even though a drive may be smaller than that[1].

Loosen this check and only verify that the size is either the whole disk
or 0xFFFFFFFF.  No tool in its right mind would set it to any value
other than these.

[1] http://thestarman.pcministry.com/asm/mbr/GPT.htm#GPTPT

Reported-and-tested-by: Matt Porter <matt.porter@linaro.org>
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agox86/intel/lpss: Add pin control support to Intel low power subsystem
Mathias Nyman [Fri, 13 Sep 2013 14:02:29 +0000 (17:02 +0300)] 
x86/intel/lpss: Add pin control support to Intel low power subsystem

x86 chips with LPSS (low power subsystem) such as Lynxpoint and
Baytrail have SoC like peripheral support and controllable pins.

At the moment, Baytrail needs the pinctrl-baytrail driver to let
peripherals control their gpio resources, but more pincontrol
functions such as pin muxing and grouping are possible to add
later.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: http://lkml.kernel.org/r/1379080949-21734-1-git-send-email-mathias.nyman@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
10 years agoperf/x86/intel: Mark MEM_LOAD_UOPS_MISS_RETIRED as precise on SNB
Stephane Eranian [Fri, 13 Sep 2013 20:16:46 +0000 (13:16 -0700)] 
perf/x86/intel: Mark MEM_LOAD_UOPS_MISS_RETIRED as precise on SNB

On Intel SNB (SNB, SNB-EP), the event MEM_LOAD_UOPS_MISS_RETIRED
supports PEBS. It was missing for the SNB PEBS event constraint
table thereby preventing any measurement with PEBS for it.

This patch adds the event to the PEBS table for SNB.

WARNING: it should be noted that this event like a few others
are subject to the erratum BT241 for Xeon E5 (SNB-EP). As such,
the event may undercount when used with PEBS unless the
workaround is implemented. But without this patch and just the
workaround, the kernel would not allow precise sampling on this
event. BT241 is documented in:

  http://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-e5-family-spec-update.pdf

Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: peterz@infradead.org
Cc: ak@linux.intel.com
Cc: zheng.z.yan@intel.com
Link: http://lkml.kernel.org/r/20130913201646.GA23981@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
10 years agoMerge tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg...
Linus Torvalds [Sat, 14 Sep 2013 03:06:40 +0000 (23:06 -0400)] 
Merge tag 'writeback-fixes' of git://git./linux/kernel/git/wfg/linux

Pull writeback fix from Wu Fengguang:
 "A trivial writeback fix"

* tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux:
  writeback: Do not sort b_io list only because of block device inode

10 years agovfs: fix dentry LRU list handling and nr_dentry_unused accounting
Linus Torvalds [Sat, 14 Sep 2013 02:55:10 +0000 (22:55 -0400)] 
vfs: fix dentry LRU list handling and nr_dentry_unused accounting

The LRU list changes interacted badly with our nr_dentry_unused
accounting, and even worse with the new DCACHE_LRU_LIST bit logic.

This introduces helper functions to make sure everything follows the
proper dcache d_lru list rules: the dentry cache is complicated by the
fact that some of the hotpaths don't even want to look at the LRU list
at all, and the fact that we use the same list entry in the dentry for
both the LRU list and for our temporary shrinking lists when removing
things from the LRU.

The helper functions temporarily have some extra sanity checking for the
flag bits that have to match the current LRU state of the dentry.  We'll
remove that before the final 3.12 release, but considering how easy it
is to get wrong, this first cleanup version has some very particular
sanity checking.

Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agocifs: update cifs.txt and remove some outdated infos
Björn Jacke [Tue, 10 Sep 2013 08:28:38 +0000 (10:28 +0200)] 
cifs: update cifs.txt and remove some outdated infos

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Björn JACKE <bj@sernet.de>
Signed-off-by: Steve French <smfrench@gmail.com>
10 years agocifs: Avoid calling unlock_page() twice in cifs_readpage() when using fscache
Sachin Prabhu [Fri, 13 Sep 2013 13:11:57 +0000 (14:11 +0100)] 
cifs: Avoid calling unlock_page() twice in cifs_readpage() when using fscache

When reading a single page with cifs_readpage(), we make a call to
fscache_read_or_alloc_page() which once done, asynchronously calls
the completion function cifs_readpage_from_fscache_complete(). This
completion function unlocks the page once it has been populated from
cache. The module then attempts to unlock the page a second time in
cifs_readpage() which leads to warning messages.

In case of a successful call to fscache_read_or_alloc_page() we should skip
the second unlock_page() since this will be called by the
cifs_readpage_from_fscache_complete() once the page has been populated by
fscache.

With the modifications to cifs_readpage_worker(), we will need to re-grab the
page lock in cifs_write_begin().

The problem was first noticed when testing new fscache patches for cifs.
https://bugzilla.redhat.com/show_bug.cgi?id=1005737

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
10 years agocifs: Do not take a reference to the page in cifs_readpage_worker()
Sachin Prabhu [Fri, 13 Sep 2013 13:11:56 +0000 (14:11 +0100)] 
cifs: Do not take a reference to the page in cifs_readpage_worker()

We do not need to take a reference to the pagecache in
cifs_readpage_worker() since the calling function will have already
taken one before passing the pointer to the page as an argument to the
function.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
10 years agoMerge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
Linus Torvalds [Fri, 13 Sep 2013 17:58:41 +0000 (10:58 -0700)] 
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "Some more low risk cleanup patches:

   - Remove unnecessary pci_set_drvdata in k10temp driver from Jingoo Han
   - Fix return values in several drivers from Sachin Kamat
   - Remove redundant break in amc6821 driver from Sachin Kamat"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (k10temp) remove unnecessary pci_set_drvdata()
  hwmon: (tmp421) Fix return value
  hwmon: (amc6821) Remove redundant break
  hwmon: (amc6821) Fix return value
  hwmon: (ibmaem) Fix return value
  hwmon: (emc2103) Fix return value

10 years agoMerge tag 'xtensa-next-20130912' of git://github.com/czankel/xtensa-linux
Linus Torvalds [Fri, 13 Sep 2013 17:57:48 +0000 (10:57 -0700)] 
Merge tag 'xtensa-next-20130912' of git://github.com/czankel/xtensa-linux

Pull Xtensa updates from Chris Zankel.

* tag 'xtensa-next-20130912' of git://github.com/czankel/xtensa-linux:
  xtensa: Fix broken allmodconfig build
  xtensa: remove CCOUNT_PER_JIFFY
  xtensa: fix !CONFIG_XTENSA_CALIBRATE_CCOUNT build failure
  xtensa: don't use echo -e needlessly
  xtensa: new fast_alloca handler
  xtensa: keep a3 and excsave1 on entry to exception handlers
  xtensa: enable kernel preemption
  xtensa: check thread flags atomically on return from user exception

10 years agoMerge git://git.kvack.org/~bcrl/aio-next
Linus Torvalds [Fri, 13 Sep 2013 17:55:58 +0000 (10:55 -0700)] 
Merge git://git.kvack.org/~bcrl/aio-next

Pull aio changes from Ben LaHaise:
 "First off, sorry for this pull request being late in the merge window.
  Al had raised a couple of concerns about 2 items in the series below.
  I addressed the first issue (the race introduced by Gu's use of
  mm_populate()), but he has not provided any further details on how he
  wants to rework the anon_inode.c changes (which were sent out months
  ago but have yet to be commented on).

  The bulk of the changes have been sitting in the -next tree for a few
  months, with all the issues raised being addressed"

* git://git.kvack.org/~bcrl/aio-next: (22 commits)
  aio: rcu_read_lock protection for new rcu_dereference calls
  aio: fix race in ring buffer page lookup introduced by page migration support
  aio: fix rcu sparse warnings introduced by ioctx table lookup patch
  aio: remove unnecessary debugging from aio_free_ring()
  aio: table lookup: verify ctx pointer
  staging/lustre: kiocb->ki_left is removed
  aio: fix error handling and rcu usage in "convert the ioctx list to table lookup v3"
  aio: be defensive to ensure request batching is non-zero instead of BUG_ON()
  aio: convert the ioctx list to table lookup v3
  aio: double aio_max_nr in calculations
  aio: Kill ki_dtor
  aio: Kill ki_users
  aio: Kill unneeded kiocb members
  aio: Kill aio_rw_vect_retry()
  aio: Don't use ctx->tail unnecessarily
  aio: io_cancel() no longer returns the io_event
  aio: percpu ioctx refcount
  aio: percpu reqs_available
  aio: reqs_active -> reqs_available
  aio: fix build when migration is disabled
  ...

10 years agotile: remove stale arch/tile/kernel/futex_64.S
Chris Metcalf [Mon, 9 Sep 2013 16:18:54 +0000 (12:18 -0400)] 
tile: remove stale arch/tile/kernel/futex_64.S

This should have been removed with commit 47d632f9f8f3, but
it was overlooked.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
10 years agotile: remove HUGE_VMAP dead code
Chris Metcalf [Wed, 11 Sep 2013 17:57:15 +0000 (13:57 -0400)] 
tile: remove HUGE_VMAP dead code

A config option to allow a variant vmap() using huge pages that was never
upstreamed had some bits of code related to it scattered around the tile
architecture; the config option was removed downstream and this commit
cleans up the scattered evidence of it from the upstream as well.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
10 years agotile: use pmd_pfn() instead of casting via pte_t
Chris Metcalf [Fri, 13 Sep 2013 15:14:25 +0000 (11:14 -0400)] 
tile: use pmd_pfn() instead of casting via pte_t

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
10 years agotile: fix typos in comment in arch/tile/kernel/unaligned.c
Chris Metcalf [Fri, 13 Sep 2013 14:57:54 +0000 (10:57 -0400)] 
tile: fix typos in comment in arch/tile/kernel/unaligned.c

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
10 years agoMerge branch 'genirq' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Fri, 13 Sep 2013 14:31:38 +0000 (07:31 -0700)] 
Merge branch 'genirq' of git://git./linux/kernel/git/s390/linux

Pull generic hardirq option removal from Martin Schwidefsky:
 "All architectures now use generic hardirqs, s390 has been last to
  switch.

  With that the code under !CONFIG_GENERIC_HARDIRQS and the related
  HAVE_GENERIC_HARDIRQS and GENERIC_HARDIRQS config options can be
  removed.  Yay!"

* 'genirq' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  Remove GENERIC_HARDIRQ config option

10 years agoMerge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Fri, 13 Sep 2013 14:30:17 +0000 (07:30 -0700)] 
Merge branch 'kconfig' of git://git./linux/kernel/git/mmarek/kbuild

Pull kconfig fix from Michal Marek:
 "This is a fix for a regression caused by my previous pull request.

  A sed command in scripts/config that used colons as separator was
  accidentally changed to use slashes, which fails when you use slashes
  in a value.  Changing it back to colons is of course not a proper fix,
  but at least it will be broken in the same way it had been for four
  years.  A proper fix is pending"

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  scripts/config: fix variable substitution command

10 years agoMerge tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realm...
Linus Torvalds [Fri, 13 Sep 2013 14:23:49 +0000 (07:23 -0700)] 
Merge tag 'blackfin-for-linus' of git://git./linux/kernel/git/realmz6/blackfin-linux

Pull blackfin updates from Steven Miao.

* tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux:
  blackfin: Ignore generated uImages
  blackfin: Add STMMAC platform data to enable dwmac1000 driver on BF60x.
  bf609: adv7343: add S-Video and Component output support
  bf609: add adv7343 video encoder support
  clock: add stmmac clock for ethernet driver
  blackfin: scb: Add SCB1 to SCB9 config options and data.
  blackfin: scb: Add system crossbar init code.

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Fri, 13 Sep 2013 14:11:14 +0000 (07:11 -0700)] 
Merge git://git./linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes a 7+ year race condition in the crypto API that causes
  sporadic crashes when multiple threads load the same algorithm.

  It also fixes the crct10dif algorithm again to prevent boot failures
  on systems where the initramfs tool ignores module softdeps"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: crct10dif - Add fallback for broken initrds
  crypto: api - Fix race condition in larval lookup

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