Commit Graph

310704 Commits

Author SHA1 Message Date
Andreas Eversberg
52a637c2a5 mISDN: Fixed hardware bridging/conference check routine of mISDN_dsp.ko.
In some cases the hardware bridging/conference (2-n parties) was selected,
but still pure software bridging/conference was used.

Signed-off-by: Andreas Eversberg <jolly@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26 03:10:45 -04:00
Andreas Eversberg
74fa9e5dff mISDN: Fix NULL pointer bug in if-condition of mISDN_dsp
Fix a bug (was introduced by a cut & paste error)
in cases when dsp->conf was NULL.

Signed-off-by: Andreas Eversberg <jolly@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26 03:10:45 -04:00
Julian Anastasov
39f618b4fd ipvs: reset ipvs pointer in netns
Make sure net->ipvs is reset on netns cleanup or failed
initialization. It is needed for IPVS applications to know that
IPVS core is not loaded in netns.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
2012-04-26 15:26:35 +09:00
Julian Anastasov
8d08d71ce5 ipvs: add check in ftp for initialized core
Avoid crash when registering ip_vs_ftp after
the IPVS core initialization for netns fails. Do this by
checking for present core (net->ipvs).

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
2012-04-26 15:26:35 +09:00
Takashi Iwai
1a442cc3df ALSA: asihpi - Revert module_pci_driver conversion for asihpi.c
It contains non-standard call.

Reported-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-04-26 07:19:39 +02:00
Linus Torvalds
2300fd67b4 Merge tag 'nfs-for-3.4-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
 - Fix NFSv4 infinite loops on open(O_TRUNC)
 - Fix an Oops and an infinite loop in the NFSv4 flock code
 - Don't register the PipeFS filesystem until it has been set up
 - Fix an Oops in nfs_try_to_update_request
 - Don't reuse NFSv4 open owners: fixes a bad sequence id storm.

* tag 'nfs-for-3.4-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4: Keep dropped state owners on the LRU list for a while
  NFSv4: Ensure that we don't drop a state owner more than once
  NFSv4: Ensure we do not reuse open owner names
  nfs: Enclose hostname in brackets when needed in nfs_do_root_mount
  NFS: put open context on error in nfs_flush_multi
  NFS: put open context on error in nfs_pagein_multi
  NFSv4: Fix open(O_TRUNC) and ftruncate() error handling
  NFSv4: Ensure that we check lock exclusive/shared type against open modes
  NFSv4: Ensure that the LOCK code sets exception->inode
  NFS: check for req==NULL in nfs_try_to_update_request cleanup
  SUNRPC: register PipeFS file system after pernet sybsystem
2012-04-25 21:38:44 -07:00
Olof Johansson
b7b617c527 Merge branch 'u300-fixes-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into fixes
* 'u300-fixes-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  ARM: u300: bump all IRQ numbers by one
  ARM: ux300: Fix unimplementable regulation constraints
2012-04-25 21:31:39 -07:00
Linus Torvalds
86ec090e58 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from H. Peter Anvin.

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x32, siginfo: Provide proper overrides for x32 siginfo_t
  asm-generic: Allow overriding clock_t and add attributes to siginfo_t
  x32: Check __ILP32__ instead of __LP64__ for x32
  x86, acpi: Call acpi_enter_sleep_state via an asmlinkage C function from assembler
  ACPI: Convert wake_sleep_flags to a value instead of function
  x86, apic: APIC code touches invalid MSR on P5 class machines
  i387: ptrace breaks the lazy-fpu-restore logic
  x86/platform: Remove incorrect error message in x86_default_fixup_cpu_id()
  x86, efi: Add dedicated EFI stub entry point
  x86/amd: Remove broken links from comment and kernel message
  x86, microcode: Ensure that module is only loaded on supported AMD CPUs
  x86, microcode: Fix sysfs warning during module unload on unsupported CPUs
2012-04-25 21:29:26 -07:00
Linus Torvalds
bdd4f709a1 Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Pull x86 platform driver fixes from Matthew Garrett:
 "One annoyance fix (make intel_ips stop complaining unnecessarily) and
  one oops fix (unterminated list in dell-laptop).  Both have been in
  -next for a while with no complaints."

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
  dell-laptop: Terminate quirks list properly
  intel_ips: Hush the i915 symbols message
2012-04-25 21:28:10 -07:00
Sasha Levin
6e8b09eaf2 mm: fix NULL ptr dereference in move_pages
Commit 3268c63 ("mm: fix move/migrate_pages() race on task struct") has
added an odd construct where 'mm' is checked for being NULL, and if it is,
it would get dereferenced anyways by mput()ing it.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:34 -07:00
Sasha Levin
f2a9ef8807 mm: fix NULL ptr dereference in migrate_pages
Commit 3268c63 ("mm: fix move/migrate_pages() race on task struct") has
added an odd construct where 'mm' is checked for being NULL, and if it is,
it would get dereferenced anyways by mput()ing it.

This would lead to the following NULL ptr deref and BUG() when calling
migrate_pages() with a pid that has no mm struct:

[25904.193704] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
[25904.194235] IP: [<ffffffff810b0de7>] mmput+0x27/0xf0
[25904.194235] PGD 773e6067 PUD 77da0067 PMD 0
[25904.194235] Oops: 0002 [#1] PREEMPT SMP
[25904.194235] CPU 2
[25904.194235] Pid: 31608, comm: trinity Tainted: G        W    3.4.0-rc2-next-20120412-sasha #69
[25904.194235] RIP: 0010:[<ffffffff810b0de7>]  [<ffffffff810b0de7>] mmput+0x27/0xf0
[25904.194235] RSP: 0018:ffff880077d49e08  EFLAGS: 00010202
[25904.194235] RAX: 0000000000000286 RBX: 0000000000000000 RCX: 0000000000000000
[25904.194235] RDX: ffff880075ef8000 RSI: 000000000000023d RDI: 0000000000000286
[25904.194235] RBP: ffff880077d49e18 R08: 0000000000000001 R09: 0000000000000001
[25904.194235] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[25904.194235] R13: 00000000ffffffea R14: ffff880034287740 R15: ffff8800218d3010
[25904.194235] FS:  00007fc8b244c700(0000) GS:ffff880029800000(0000) knlGS:0000000000000000
[25904.194235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[25904.194235] CR2: 0000000000000050 CR3: 00000000767c6000 CR4: 00000000000406e0
[25904.194235] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[25904.194235] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[25904.194235] Process trinity (pid: 31608, threadinfo ffff880077d48000, task ffff880075ef8000)
[25904.194235] Stack:
[25904.194235]  ffff8800342876c0 0000000000000000 ffff880077d49f78 ffffffff811b8020
[25904.194235]  ffffffff811b7d91 ffff880075ef8000 ffff88002256d200 0000000000000000
[25904.194235]  00000000000003ff 0000000000000000 0000000000000000 0000000000000000
[25904.194235] Call Trace:
[25904.194235]  [<ffffffff811b8020>] sys_migrate_pages+0x340/0x3a0
[25904.194235]  [<ffffffff811b7d91>] ? sys_migrate_pages+0xb1/0x3a0
[25904.194235]  [<ffffffff8266cbb9>] system_call_fastpath+0x16/0x1b
[25904.194235] Code: c9 c3 66 90 55 31 d2 48 89 e5 be 3d 02 00 00 48 83 ec 10 48 89 1c 24 4c 89 64 24 08 48 89 fb 48 c7 c7 cf 0e e1 82 e8 69 18 03 00 <f0> ff 4b 50 0f 94 c0 84 c0 0f 84 aa 00 00 00 48 89 df e8 72 f1
[25904.194235] RIP  [<ffffffff810b0de7>] mmput+0x27/0xf0
[25904.194235]  RSP <ffff880077d49e08>
[25904.194235] CR2: 0000000000000050
[25904.348999] ---[ end trace a307b3ed40206b4b ]---

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:34 -07:00
Will Deacon
63f61a6f46 revert "proc: clear_refs: do not clear reserved pages"
Revert commit 85e72aa538 ("proc: clear_refs: do not clear reserved
pages"), which was a quick fix suitable for -stable until ARM had been
moved over to the gate_vma mechanism:

https://lkml.org/lkml/2012/1/14/55

With commit f9d4861f ("ARM: 7294/1: vectors: use gate_vma for vectors user
mapping"), ARM does now use the gate_vma, so the PageReserved check can be
removed from the proc code.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Nicolas Pitre <nico@linaro.org>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:34 -07:00
Anatolij Gustschin
3f5ec5e06d drivers/rtc/rtc-ds1307.c: fix BUG shown with lock debugging enabled
Add struct bin_attribute initialization to fix the following bug:

rtc-ds1307 3-0068: rtc core: registered ds1307 as rtc0
BUG: key cfb14fcc not in .data!
------------[ cut here ]------------
WARNING: at kernel/lockdep.c:2986 sysfs_add_file_mode+0x84/0xdc()
Modules linked in:
[<c0018d94>] (unwind_backtrace+0x0/0xf8) from [<c0031f7c>] (warn_slowpath_common+0x4c/0x64)
[<c0031f7c>] (warn_slowpath_common+0x4c/0x64) from [<c0031fb0>] (warn_slowpath_null+0x1c/0x24)
[<c0031fb0>] (warn_slowpath_null+0x1c/0x24) from [<c012f7ac>] (sysfs_add_file_mode+0x84/0xdc)
[<c012f7ac>] (sysfs_add_file_mode+0x84/0xdc) from [<c04b11e4>] (ds1307_probe+0x5e4/0x6ac)
[<c04b11e4>] (ds1307_probe+0x5e4/0x6ac) from [<c036e600>] (i2c_device_probe+0xdc/0x108)
[<c036e600>] (i2c_device_probe+0xdc/0x108) from [<c02cdf84>] (driver_probe_device+0x90/0x210)
[<c02cdf84>] (driver_probe_device+0x90/0x210) from [<c02ce198>] (__driver_attach+0x94/0x98)
[<c02ce198>] (__driver_attach+0x94/0x98) from [<c02cc824>] (bus_for_each_dev+0x50/0x7c)
[<c02cc824>] (bus_for_each_dev+0x50/0x7c) from [<c02cd780>] (bus_add_driver+0x184/0x244)
[<c02cd780>] (bus_add_driver+0x184/0x244) from [<c02ce43c>] (driver_register+0x78/0x12c)
[<c02ce43c>] (driver_register+0x78/0x12c) from [<c03701ac>] (i2c_register_driver+0x2c/0xb4)
[<c03701ac>] (i2c_register_driver+0x2c/0xb4) from [<c0008798>] (do_one_initcall+0x34/0x178)
[<c0008798>] (do_one_initcall+0x34/0x178) from [<c0691860>] (kernel_init+0xdc/0x194)
[<c0691860>] (kernel_init+0xdc/0x194) from [<c0013cf0>] (kernel_thread_exit+0x0/0x8)

Since commit 6992f53349 ("sysfs: Use one lockdep class per sysfs
attribute") this initialization is required.

Reported-by: Stefano Babic <sbabic@denx.de>
Tested-by: Stefano Babic <sbabic@denx.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:34 -07:00
Vasiliy Kulikov
db7b122cf5 arch/arm/mach-ux500/mbox-db5500.c: world-writable sysfs fifo file
Don't allow everybody to use a modem.

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:34 -07:00
Aneesh Kumar K.V
65ed76010d hugetlbfs: lockdep annotate root inode properly
This fixes the below reported false lockdep warning.  e096d0c7e2
("lockdep: Add helper function for dir vs file i_mutex annotation") added
a similar annotation for every other inode in hugetlbfs but missed the
root inode because it was allocated by a separate function.

For HugeTLB fs we allow taking i_mutex in mmap.  HugeTLB fs doesn't
support file write and its file read callback is modified in a05b0855fd
("hugetlbfs: avoid taking i_mutex from hugetlbfs_read()") to not take
i_mutex.  Hence for HugeTLB fs with regular files we really don't take
i_mutex with mmap_sem held.

 ======================================================
 [ INFO: possible circular locking dependency detected ]
 3.4.0-rc1+ #322 Not tainted
 -------------------------------------------------------
 bash/1572 is trying to acquire lock:
  (&mm->mmap_sem){++++++}, at: [<ffffffff810f1618>] might_fault+0x40/0x90

 but task is already holding lock:
  (&sb->s_type->i_mutex_key#12){+.+.+.}, at: [<ffffffff81125f88>] vfs_readdir+0x56/0xa8

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #1 (&sb->s_type->i_mutex_key#12){+.+.+.}:
        [<ffffffff810a09e5>] lock_acquire+0xd5/0xfa
        [<ffffffff816a2f5e>] __mutex_lock_common+0x48/0x350
        [<ffffffff816a3325>] mutex_lock_nested+0x2a/0x31
        [<ffffffff811fb8e1>] hugetlbfs_file_mmap+0x7d/0x104
        [<ffffffff810f859a>] mmap_region+0x272/0x47d
        [<ffffffff810f8a39>] do_mmap_pgoff+0x294/0x2ee
        [<ffffffff810f8b65>] sys_mmap_pgoff+0xd2/0x10e
        [<ffffffff8103d19e>] sys_mmap+0x1d/0x1f
        [<ffffffff816a5922>] system_call_fastpath+0x16/0x1b

 -> #0 (&mm->mmap_sem){++++++}:
        [<ffffffff810a0256>] __lock_acquire+0xa81/0xd75
        [<ffffffff810a09e5>] lock_acquire+0xd5/0xfa
        [<ffffffff810f1645>] might_fault+0x6d/0x90
        [<ffffffff81125d62>] filldir+0x6a/0xc2
        [<ffffffff81133a83>] dcache_readdir+0x5c/0x222
        [<ffffffff81125fa8>] vfs_readdir+0x76/0xa8
        [<ffffffff811260b6>] sys_getdents+0x79/0xc9
        [<ffffffff816a5922>] system_call_fastpath+0x16/0x1b

 other info that might help us debug this:

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(&sb->s_type->i_mutex_key#12);
                                lock(&mm->mmap_sem);
                                lock(&sb->s_type->i_mutex_key#12);
   lock(&mm->mmap_sem);

  *** DEADLOCK ***

 1 lock held by bash/1572:
  #0:  (&sb->s_type->i_mutex_key#12){+.+.+.}, at: [<ffffffff81125f88>] vfs_readdir+0x56/0xa8

 stack backtrace:
 Pid: 1572, comm: bash Not tainted 3.4.0-rc1+ #322
 Call Trace:
  [<ffffffff81699a3c>] print_circular_bug+0x1f8/0x209
  [<ffffffff810a0256>] __lock_acquire+0xa81/0xd75
  [<ffffffff810f38aa>] ? handle_pte_fault+0x5ff/0x614
  [<ffffffff8109e622>] ? mark_lock+0x2d/0x258
  [<ffffffff810f1618>] ? might_fault+0x40/0x90
  [<ffffffff810a09e5>] lock_acquire+0xd5/0xfa
  [<ffffffff810f1618>] ? might_fault+0x40/0x90
  [<ffffffff816a3249>] ? __mutex_lock_common+0x333/0x350
  [<ffffffff810f1645>] might_fault+0x6d/0x90
  [<ffffffff810f1618>] ? might_fault+0x40/0x90
  [<ffffffff81125d62>] filldir+0x6a/0xc2
  [<ffffffff81133a83>] dcache_readdir+0x5c/0x222
  [<ffffffff81125cf8>] ? sys_ioctl+0x74/0x74
  [<ffffffff81125cf8>] ? sys_ioctl+0x74/0x74
  [<ffffffff81125cf8>] ? sys_ioctl+0x74/0x74
  [<ffffffff81125fa8>] vfs_readdir+0x76/0xa8
  [<ffffffff811260b6>] sys_getdents+0x79/0xc9
  [<ffffffff816a5922>] system_call_fastpath+0x16/0x1b

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Josh Boyer <jwboyer@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:34 -07:00
Peter Feuerer
351963bb58 acerhdf: lowered default temp fanon/fanoff values
Due to new supported hardware, of which the actual temperature limits of
processor, harddisk and other components are unknown, it feels safer with
lower fanon / fanoff settings.

It won't change much for most people, already using acerhdf, as they use
their own fanon/fanoff variable settings when loading the module.

Furthermore seems like kernel and userspace tools have been improved to
work more efficient and netbooks don't get so hot anymore.

Signed-off-by: Peter Feuerer <peter@piie.net>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:34 -07:00
Peter Feuerer
43ae1e32e0 acerhdf: add support for new hardware
Add support for new hardware:
Acer Aspire LT-10Q/531/751/1810/1825,
Acer Travelmate 7730,
Packard Bell ENBFT/DOTVR46

Signed-off-by: Peter Feuerer <peter@piie.net>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:33 -07:00
Clay Carpenter
e39a9ba288 acerhdf: add support for Aspire 1410 BIOS v1.3314
Add support for Aspire 1410 BIOS v1.3314.  Fixes the following error:

acerhdf: unknown (unsupported) BIOS version Acer/Aspire 1410/v1.3314,
please report, aborting!

Signed-off-by: Clay Carpenter <claycarpenter@gmail.com>
Signed-off-by: Peter Feuerer <peter@piie.net>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:33 -07:00
Glauber Costa
61065a30af fs/buffer.c: remove BUG() in possible but rare condition
While stressing the kernel with with failing allocations today, I hit the
following chain of events:

alloc_page_buffers():

	bh = alloc_buffer_head(GFP_NOFS);
	if (!bh)
		goto no_grow; <= path taken

grow_dev_page():
        bh = alloc_page_buffers(page, size, 0);
        if (!bh)
                goto failed;  <= taken, consequence of the above

and then the failed path BUG()s the kernel.

The failure is inserted a litte bit artificially, but even then, I see no
reason why it should be deemed impossible in a real box.

Even though this is not a condition that we expect to see around every
time, failed allocations are expected to be handled, and BUG() sounds just
too much.  As a matter of fact, grow_dev_page() can return NULL just fine
in other circumstances, so I propose we just remove it, then.

Signed-off-by: Glauber Costa <glommer@parallels.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:33 -07:00
Ying Han
904249aa68 mm: fix up the vmscan stat in vmstat
The "pgsteal" stat is confusing because it counts both direct reclaim as
well as background reclaim.  However, we have "kswapd_steal" which also
counts background reclaim value.

This patch fixes it and also makes it match the existng "pgscan_" stats.

Test:
pgsteal_kswapd_dma32 447623
pgsteal_kswapd_normal 42272677
pgsteal_kswapd_movable 0
pgsteal_direct_dma32 2801
pgsteal_direct_normal 44353270
pgsteal_direct_movable 0

Signed-off-by: Ying Han <yinghan@google.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Mel Gorman <mel@csn.ul.ie>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:33 -07:00
Jason Baron
13d518074a epoll: clear the tfile_check_list on -ELOOP
An epoll_ctl(,EPOLL_CTL_ADD,,) operation can return '-ELOOP' to prevent
circular epoll dependencies from being created.  However, in that case we
do not properly clear the 'tfile_check_list'.  Thus, add a call to
clear_tfile_check_list() for the -ELOOP case.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Reported-by: Yurij M. Plotnikov <Yurij.Plotnikov@oktetlabs.ru>
Cc: Nelson Elhage <nelhage@nelhage.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Tested-by: Alexandra N. Kossovsky <Alexandra.Kossovsky@oktetlabs.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:33 -07:00
Konstantin Khlebnikov
b1c12cbcd0 mm/hugetlb: fix warning in alloc_huge_page/dequeue_huge_page_vma
Fix a gcc warning (and bug?) introduced in cc9a6c877 ("cpuset: mm: reduce
large amounts of memory barrier related damage v3")

Local variable "page" can be uninitialized if the nodemask from vma policy
does not intersects with nodemask from cpuset.  Even if it doesn't happens
it is better to initialize this variable explicitly than to introduce
a kernel oops in a weird corner case.

mm/hugetlb.c: In function `alloc_huge_page':
mm/hugetlb.c:1135:5: warning: `page' may be used uninitialized in this function

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:26:33 -07:00
Johannes Weiner
ce587e65e8 mm: memcg: move pc lookup point to commit_charge()
None of the callsites actually need the page_cgroup descriptor
themselves, so just pass the page and do the look up in there.

We already had two bugs (6568d4a 'mm: memcg: update the correct soft
limit tree during migration' and 'memcg: fix Bad page state after
replace_page_cache') where the passed page and pc were not referring
to the same page frame.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:22:35 -07:00
David Miller
4e1c2b2844 mm: nobootmem: Correct alloc_bootmem semantics.
The comments above __alloc_bootmem_node() claim that the code will
first try the allocation using 'goal' and if that fails it will
try again but with the 'goal' requirement dropped.

Unfortunately, this is not what the code does, so fix it to do so.

This is important for nobootmem conversions to architectures such
as sparc where MAX_DMA_ADDRESS is infinity.

On such architectures all of the allocations done by generic spots,
such as the sparse-vmemmap implementation, will pass in:

	__pa(MAX_DMA_ADDRESS)

as the goal, and with the limit given as "-1" this will always fail
unless we add the appropriate fallback logic here.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-25 21:18:01 -07:00
Shan Wei
8dcf01fc00 net: sock_diag_handler structs can be const
read only, so change it to const.

Signed-off-by: Shan Wei <davidshan@tencent.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-25 20:46:59 -04:00
Shan Wei
62ad6fcd74 udp_diag: implement idiag_get_info for udp/udplite to get queue information
When we use netlink to monitor queue information for udp socket,
idiag_rqueue and idiag_wqueue of inet_diag_msg are returned with 0.

Keep consistent with netstat, just return back allocated rmem/wmem size.

Signed-off-by: Shan Wei <davidshan@tencent.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-25 20:43:01 -04:00
Eric Dumazet
808db80a7e ipv6: call consume_skb() in frag/reassembly
Some kfree_skb() calls should be replaced by consume_skb() to avoid
drop_monitor/dropwatch false positives.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-25 20:39:46 -04:00
Rupesh Gujare
8176df8e95 staging: ozwpan: Fix bug where kfree is called twice.
Signed-off-by: Rupesh Gujare <rgujare@ozmodevices.com>
Signed-off-by: Chris Kelly <ckelly@ozmodevices.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 17:30:42 -07:00
John Fastabend
081579840b net: dcb: add CEE notify calls
This adds code to trigger CEE events when an APP change or setall
command is made from user space. This simplifies user space code
significantly by creating a single interface to listen on that
works with both firmware and userland agents.

And if we end up with multiple agents this keeps every thing in
sync userland agents, firmware agents, and kernel notifier consumers.

For an example agent that listens for these events see:

https://github.com/jrfastab/cgdcbxd

cgdcbxd is a daemon used to monitor DCB netlink events and manage
the net_prio control group sub-system.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Shmulik Ravid <shmulikr@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-25 19:47:17 -04:00
Stephen Warren
b087657493 USB: ehci-tegra: remove PORT_RWC_BITS when setting USB_PORT_FEAT_ENABLE
In the SetPortFeature/USB_PORT_FEAT_ENABLE case, ehci_hub_control()
would read from status_reg, modify the value, and write the result back to
status_reg. This would clear any bits in PORT_RWC_BITS that were set in
the register. Fix this by masking these bits off before the write.

This is logically the same change as 6d5f89c "USB: EHCI: remove
PORT_RWC_BITS when clearing USB_PORT_FEAT_ENABLE", but applied to the
Tegra driver rather than the USB core.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 15:15:05 -07:00
Greg Kroah-Hartman
af4e1ee040 USB: remove err() macro
I thought this had been removed years ago.  All in-kernel users of this
call have now been cleaned up and converted over to use dev_err()
instead, which is the correct thing to do.  Now that there are no users,
the macro can be removed so no one else accidentally starts to use it.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:55:16 -07:00
Greg Kroah-Hartman
8048926bb8 USB: as102_usb_drv.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Mauro Carvalho Chehab <mchehab@infradead.org>
CC: Sylwester Nawrocki <snjw23@gmail.com>
CC: Piotr Chmura <chmooreck@poczta.onet.pl>
CC: Devin Heitmueller <dheitmueller@kernellabs.com>
CC: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:57 -07:00
Greg Kroah-Hartman
24c0328663 USB: at76c50x-usb.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:52 -07:00
Greg Kroah-Hartman
46267f4caa USB: stir4200.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:51 -07:00
Greg Kroah-Hartman
d867c43e24 USB: ksdazzle-sir.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:51 -07:00
Greg Kroah-Hartman
32279240ab USB: ks959-sir.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:50 -07:00
Greg Kroah-Hartman
6f0d27ff97 USB: kingsun-sir.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:50 -07:00
Greg Kroah-Hartman
3d55ea3e22 USB: irda-usb.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:49 -07:00
Greg Kroah-Hartman
d372c4197d USB: hdpvr-core.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Mauro Carvalho Chehab <mchehab@infradead.org>
CC: Jarod Wilson <jarod@redhat.com>
CC: Taylor Ralph <tralph@mythtv.org>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:49 -07:00
Greg Kroah-Hartman
a581c72a8e USB: ov534_9.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Jean-Francois Moine <moinejf@free.fr>
CC: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:47 -07:00
Greg Kroah-Hartman
e27ad0fe9c USB: usbtouchscreen.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: Henrik Rydberg <rydberg@euromail.se>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Viresh Kumar <viresh.kumar@st.com>
CC: Armando Visconti <armando.visconti@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:46 -07:00
Greg Kroah-Hartman
b3169fecb1 USB: wacom_sys.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: Ping Cheng <pingc@wacom.com>
CC: Chris Bagwell <chris@cnpbagwell.com>
CC: Eduard Hasenleithner <eduard@hasenleithner.at>
CC: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:44 -07:00
Greg Kroah-Hartman
202712c232 USB: kbtab.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:41 -07:00
Greg Kroah-Hartman
3bd9597a6b USB: gtco.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:39 -07:00
Greg Kroah-Hartman
1f80bb943d USB: aiptek.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: Jesper Juhl <jj@chaosbits.net>
CC: JJ Ding <dgdunix@gmail.com>
CC: Edwin van Vliet <edwin@cheatah.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:36 -07:00
Greg Kroah-Hartman
b59c82bd6f USB: acecad.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:34 -07:00
Greg Kroah-Hartman
6c1d1b2461 USB: bcm5974.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Henrik Rydberg <rydberg@euromail.se>
CC: Alessandro Rubini <rubini@ipvvis.unipv.it>
CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:31 -07:00
Greg Kroah-Hartman
9c113dc67a USB: appletouch.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Alessandro Rubini <rubini@ipvvis.unipv.it>
CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:31 -07:00
Greg Kroah-Hartman
08813d35d2 USB: yealink.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Henk Vergonet <Henk.Vergonet@gmail.com>
CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:31 -07:00
Greg Kroah-Hartman
2385f3c3c7 USB: powermate.c: remove err() usage
err() was a very old USB-specific macro that I thought had
gone away.  This patch removes it from being used in the
driver and uses dev_err() instead.

CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25 14:48:30 -07:00