Commit Graph

44157 Commits

Author SHA1 Message Date
Linus Torvalds 2a9d6df425 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
* 'for-linus' of git://git.kernel.dk/linux-block:
  drbd: we should write meta data updates with FLUSH FUA
  drbd: fix limit define, we support 1 PiByte now
  drbd: when receive times out on meta socket, also check last receive time on data socket
  drbd: account bitmap IO during resync as resync-(related-)-io
  drbd: don't cond_resched_lock with IRQs disabled
  drbd: add missing spinlock to bitmap receive
  drbd: Use the correct max_bio_size when creating resync requests
  cfq-iosched: make code consistent
  cfq-iosched: fix a rcu warning
2011-07-07 13:22:26 -07:00
David Howells c902ce1bfb FS-Cache: Add a helper to bulk uncache pages on an inode
Add an FS-Cache helper to bulk uncache pages on an inode.  This will
only work for the circumstance where the pages in the cache correspond
1:1 with the pages attached to an inode's page cache.

This is required for CIFS and NFS: When disabling inode cookie, we were
returning the cookie and setting cifsi->fscache to NULL but failed to
invalidate any previously mapped pages.  This resulted in "Bad page
state" errors and manifested in other kind of errors when running
fsstress.  Fix it by uncaching mapped pages when we disable the inode
cookie.

This patch should fix the following oops and "Bad page state" errors
seen during fsstress testing.

  ------------[ cut here ]------------
  kernel BUG at fs/cachefiles/namei.c:201!
  invalid opcode: 0000 [#1] SMP
  Pid: 5, comm: kworker/u:0 Not tainted 2.6.38.7-30.fc15.x86_64 #1 Bochs Bochs
  RIP: 0010: cachefiles_walk_to_object+0x436/0x745 [cachefiles]
  RSP: 0018:ffff88002ce6dd00  EFLAGS: 00010282
  RAX: ffff88002ef165f0 RBX: ffff88001811f500 RCX: 0000000000000000
  RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000000000282
  RBP: ffff88002ce6dda0 R08: 0000000000000100 R09: ffffffff81b3a300
  R10: 0000ffff00066c0a R11: 0000000000000003 R12: ffff88002ae54840
  R13: ffff88002ae54840 R14: ffff880029c29c00 R15: ffff88001811f4b0
  FS:  00007f394dd32720(0000) GS:ffff88002ef00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  CR2: 00007fffcb62ddf8 CR3: 000000001825f000 CR4: 00000000000006e0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  Process kworker/u:0 (pid: 5, threadinfo ffff88002ce6c000, task ffff88002ce55cc0)
  Stack:
   0000000000000246 ffff88002ce55cc0 ffff88002ce6dd58 ffff88001815dc00
   ffff8800185246c0 ffff88001811f618 ffff880029c29d18 ffff88001811f380
   ffff88002ce6dd50 ffffffff814757e4 ffff88002ce6dda0 ffffffff8106ac56
  Call Trace:
   cachefiles_lookup_object+0x78/0xd4 [cachefiles]
   fscache_lookup_object+0x131/0x16d [fscache]
   fscache_object_work_func+0x1bc/0x669 [fscache]
   process_one_work+0x186/0x298
   worker_thread+0xda/0x15d
   kthread+0x84/0x8c
   kernel_thread_helper+0x4/0x10
  RIP  cachefiles_walk_to_object+0x436/0x745 [cachefiles]
  ---[ end trace 1d481c9af1804caa ]---

I tested the uncaching by the following means:

 (1) Create a big file on my NFS server (104857600 bytes).

 (2) Read the file into the cache with md5sum on the NFS client.  Look in
     /proc/fs/fscache/stats:

	Pages  : mrk=25601 unc=0

 (3) Open the file for read/write ("bash 5<>/warthog/bigfile").  Look in proc
     again:

	Pages  : mrk=25601 unc=25601

Reported-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-07 13:21:56 -07:00
Linus Torvalds 27a3b735b7 Merge branches 'core-urgent-for-linus', 'perf-urgent-for-linus' and 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  debugobjects: Fix boot crash when kmemleak and debugobjects enabled

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  jump_label: Fix jump_label update for modules
  oprofile, x86: Fix race in nmi handler while starting counters

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Disable (revert) SCHED_LOAD_SCALE increase
  sched, cgroups: Fix MIN_SHARES on 64-bit boxen
2011-07-07 13:17:45 -07:00
Linus Torvalds 85746e429f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (31 commits)
  sctp: fix missing send up SCTP_SENDER_DRY_EVENT when subscribe it
  net: refine {udp|tcp|sctp}_mem limits
  vmxnet3: round down # of queues to power of two
  net: sh_eth: fix the parameter for the ETHER of SH7757
  net: sh_eth: fix cannot work half-duplex mode
  net: vlan: enable soft features regardless of underlying device
  vmxnet3: fix starving rx ring whenoc_skb kb fails
  bridge: Always flood broadcast packets
  greth: greth_set_mac_add would corrupt the MAC address.
  net: bind() fix error return on wrong address family
  natsemi: silence dma-debug warnings
  net: 8139too: Initial necessary vlan_features to support vlan
  Fix call trace when interrupts are disabled while sleeping function kzalloc is called
  qlge:Version change to v1.00.00.29
  qlge: Fix printk priority so chip fatal errors are always reported.
  qlge:Fix crash caused by mailbox execution on wedged chip.
  xfrm4: Don't call icmp_send on local error
  ipv4: Don't use ufo handling on later transformed packets
  xfrm: Remove family arg from xfrm_bundle_ok
  ipv6: Don't put artificial limit on routing table size.
  ...
2011-07-07 13:16:21 -07:00
Linus Torvalds de3796e77a Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (46 commits)
  [media] rc: call input_sync after scancode reports
  [media] imon: allow either proto on unknown 0xffdc
  [media] imon: auto-config ffdc 7e device
  [media] saa7134: fix raw IR timeout value
  [media] rc: fix ghost keypresses with certain hw
  [media] [staging] lirc_serial: allocate irq at init time
  [media] lirc_zilog: fix spinning rx thread
  [media] keymaps: fix table for pinnacle pctv hd devices
  [media] ite-cir: 8709 needs to use pnp resource 2
  [media] V4L: mx1-camera: fix uninitialized variable
  [media] omap_vout: Added check in reqbuf & mmap for buf_size allocation
  [media] OMAP_VOUT: Change hardcoded device node number to -1
  [media] OMAP_VOUTLIB: Fix wrong resizer calculation
  [media] uvcvideo: Disable the queue when failing to start
  [media] uvcvideo: Remove buffers from the queues when freeing
  [media] uvcvideo: Ignore entities for terminals with no supported format
  [media] v4l: Don't access media entity after is has been destroyed
  [media] media: omap3isp: fix a potential NULL deref
  [media] media: vb2: fix allocation failure check
  [media] media: vb2: reset queued_count value during queue reinitialization
  ...

Fix up trivial conflict in MAINTAINERS as per Mauro
2011-07-06 12:16:49 -07:00
Peter Zijlstra e4c2fb0d57 sched: Disable (revert) SCHED_LOAD_SCALE increase
Alex reported that commit c8b281161d ("sched: Increase
SCHED_LOAD_SCALE resolution") caused a power usage regression
under light load as it increases the number of load-balance
operations and keeps idle cpus from staying idle.

Time has run out to find the root cause for this release so
disable the feature for v3.0 until we can figure out what
causes the problem.

Reported-by: "Alex, Shi" <alex.shi@intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Nikhil Rao <ncrao@google.com>
Cc: Ming Lei <tom.leiming@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-m4onxn0sxnyn5iz9o88eskc3@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-05 11:28:18 +02:00
Linus Torvalds aababb9766 Merge branch 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-3.x
* 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-3.x:
  vesafb: fix memory leak
  fbdev: amba: Link fb device to its parent
  fsl-diu-fb: remove check for pixel clock ranges
  udlfb: Correct sub-optimal resolution selection.
  hecubafb: add module_put on error path in hecubafb_probe()
  sm501fb: fix section mismatch warning
  gx1fb: Fix section mismatch warnings
  fbdev: sh_mobile_meram: Correct pointer check for YCbCr chroma plane
2011-07-04 15:53:53 -07:00
Linus Torvalds 8aa7ad9018 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: sb16 - Fix build errors on MIPS and others with 13bit ioctl size
  ALSA: hdspm - Fix compile warnings with PPC
  ALSA: cs5535 - Fix invalid big-endian conversions
  ALSA: HDMI - fix ELD monitor name length
  ALSA: atmel - update author email for ABDAC, AC97C and AT73C213
  ALSA: HDA: Add model=auto quirk for Acer Aspire 3830TG
  ALSA: HDA: Add a new Conexant codec ID (506c)
2011-07-02 09:26:53 -07:00
David S. Miller 957c665f37 ipv6: Don't put artificial limit on routing table size.
IPV6, unlike IPV4, doesn't have a routing cache.

Routing table entries, as well as clones made in response
to route lookup requests, all live in the same table.  And
all of these things are together collected in the destination
cache table for ipv6.

This means that routing table entries count against the garbage
collection limits, even though such entries cannot ever be reclaimed
and are added explicitly by the administrator (rather than being
created in response to lookups).

Therefore it makes no sense to count ipv6 routing table entries
against the GC limits.

Add a DST_NOCOUNT destination cache entry flag, and skip the counting
if it is set.  Use this flag bit in ipv6 when adding routing table
entries.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 17:30:43 -07:00
David S. Miller 60c2ce2b4f Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2011-07-01 01:52:02 -07:00
John W. Linville 690b0cacb6 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into for-davem 2011-06-30 11:26:04 -04:00
Takashi Iwai 4f3c7a18d9 ALSA: sb16 - Fix build errors on MIPS and others with 13bit ioctl size
One of ioctl definition in sound/sb16_csp.h contains the data size
over 8kB, and this causes build errors on architectures like MIPS,
which define _IOC_SIZEBITS=13.

For avoiding this build errors but keeping the compatibility, manually
expand with _IOC() instead of using _IOW() for the problematic ioctl.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-30 15:33:57 +02:00
Jens Axboe 7b28afe01a Merge branch 'for-3.0-important' of git://git.drbd.org/linux-2.6-drbd into for-linus 2011-06-30 10:10:50 +02:00
Lars Ellenberg 15b493d11f drbd: fix limit define, we support 1 PiByte now
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-06-30 09:23:45 +02:00
Linus Torvalds c89b857ce6 Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  Connector: Correctly set the error code in case of success when dispatching receive callbacks
  Connector: Set the CN_NETLINK_USERS correctly
  pti: PTI semantics fix in pti_tty_cleanup.
  pti: ENXIO error case memory leak PTI fix.
  pti: double-free security PTI fix
  drivers:misc: ti-st: fix skipping of change remote baud
  drivers/base/platform.c: don't mark platform_device_register_resndata() as __init_or_module
  st_kim: Handle case of no device found for ID 0
  firmware: fix GOOGLE_SMI kconfig dependency warning
2011-06-28 11:15:36 -07:00
Linus Torvalds 04b905942b Merge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  serial: bcm63xx_uart: fix irq storm after rx fifo overrun.
  amba pl011: platform data for reg lockup and glitch v2
  amba pl011: workaround for uart registers lockup
  tty: n_gsm: improper skb_pull() use was leaking framed data
  tty: n_gsm: Fixed logic to decode break signal from modem status
  TTY: ntty, add one more sanity check
  TTY: ldisc, do not close until there are readers
  8250: Fix capabilities when changing the port type
  8250_pci: Fix missing const from merges
  ARM: SAMSUNG: serial: Fix on handling of one clock source for UART
  serial: ioremap warning fix for jsm driver.
  8250_pci: add -ENODEV code for Intel EG20T PCH
2011-06-28 11:14:55 -07:00
Jan Kara 08142579b6 mm: fix assertion mapping->nrpages == 0 in end_writeback()
Under heavy memory and filesystem load, users observe the assertion
mapping->nrpages == 0 in end_writeback() trigger.  This can be caused by
page reclaim reclaiming the last page from a mapping in the following
race:

	CPU0				CPU1
  ...
  shrink_page_list()
    __remove_mapping()
      __delete_from_page_cache()
        radix_tree_delete()
					evict_inode()
					  truncate_inode_pages()
					    truncate_inode_pages_range()
					      pagevec_lookup() - finds nothing
					  end_writeback()
					    mapping->nrpages != 0 -> BUG
        page->mapping = NULL
        mapping->nrpages--

Fix the problem by doing a reliable check of mapping->nrpages under
mapping->tree_lock in end_writeback().

Analyzed by Jay <jinshan.xiong@whamcloud.com>, lost in LKML, and dug out
by Miklos Szeredi <mszeredi@suse.de>.

Cc: Jay <jinshan.xiong@whamcloud.com>
Cc: Miklos Szeredi <mszeredi@suse.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27 18:00:13 -07:00
Chris Metcalf 507c5f1224 include/linux/compat.h: declare compat_sys_sendmmsg()
This is required for tilegx to be able to use the compat unistd.h header
where compat_sys_sendmmsg() is now mentioned.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27 18:00:13 -07:00
Hugh Dickins d9d90e5eb7 tmpfs: add shmem_read_mapping_page_gfp
Although it is used (by i915) on nothing but tmpfs, read_cache_page_gfp()
is unsuited to tmpfs, because it inserts a page into pagecache before
calling the filesystem's ->readpage: tmpfs may have pages in swapcache
which only it knows how to locate and switch to filecache.

At present tmpfs provides a ->readpage method, and copes with this by
copying pages; but soon we can simplify it by removing its ->readpage.
Provide shmem_read_mapping_page_gfp() now, ready for that transition,

Export shmem_read_mapping_page_gfp() and add it to list in shmem_fs.h,
with shmem_read_mapping_page() inline for the common mapping_gfp case.

(shmem_read_mapping_page_gfp or shmem_read_cache_page_gfp? Generally the
read_mapping_page functions use the mapping's ->readpage, and the
read_cache_page functions use the supplied filler, so I think
read_cache_page_gfp was slightly misnamed.)

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27 18:00:12 -07:00
Hugh Dickins 94c1e62df4 tmpfs: take control of its truncate_range
2.6.35's new truncate convention gave tmpfs the opportunity to control
its file truncation, no longer enforced from outside by vmtruncate().
We shall want to build upon that, to handle pagecache and swap together.

Slightly redefine the ->truncate_range interface: let it now be called
between the unmap_mapping_range()s, with the filesystem responsible for
doing the truncate_inode_pages_range() from it - just as the filesystem
is nowadays responsible for doing that from its ->setattr.

Let's rename shmem_notify_change() to shmem_setattr().  Instead of
calling the generic truncate_setsize(), bring that code in so we can
call shmem_truncate_range() - which will later be updated to perform its
own variant of truncate_inode_pages_range().

Remove the punch_hole unmap_mapping_range() from shmem_truncate_range():
now that the COW's unmap_mapping_range() comes after ->truncate_range,
there is no need to call it a third time.

Export shmem_truncate_range() and add it to the list in shmem_fs.h, so
that i915_gem_object_truncate() can call it explicitly in future; get
this patch in first, then update drm/i915 once this is available (until
then, i915 will just be doing the truncate_inode_pages() twice).

Though introduced five years ago, no other filesystem is implementing
->truncate_range, and its only other user is madvise(,,MADV_REMOVE): we
expect to convert it to fallocate(,FALLOC_FL_PUNCH_HOLE,,) shortly,
whereupon ->truncate_range can be removed from inode_operations -
shmem_truncate_range() will help i915 across that transition too.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27 18:00:12 -07:00
Hugh Dickins 072441e21d mm: move shmem prototypes to shmem_fs.h
Before adding any more global entry points into shmem.c, gather such
prototypes into shmem_fs.h.  Remove mm's own declarations from swap.h,
but for now leave the ones in mm.h: because shmem_file_setup() and
shmem_zero_setup() are called from various places, and we should not
force other subsystems to update immediately.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27 18:00:12 -07:00
Vitaliy Ivanov 4d258b25d9 Fix some kernel-doc warnings
Fix 'make htmldocs' warnings:

  Warning(/include/linux/hrtimer.h:153): No description found for parameter 'clockid'
  Warning(/include/linux/device.h:604): Excess struct/union/enum/typedef member 'of_match' description in 'device'
  Warning(/include/net/sock.h:349): Excess struct/union/enum/typedef member 'sk_rmem_alloc' description in 'sock'

Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27 16:06:19 -07:00
Linus Torvalds a64227b085 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  mmc: queue: bring discard_granularity/alignment into line with SCSI
  mmc: queue: append partition subname to queue thread name
  mmc: core: make erase timeout calculation allow for gated clock
  mmc: block: switch card to User Data Area when removing the block driver
  mmc: sdio: reset card during power_restore
  mmc: cb710: fix #ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS
  mmc: sdhi: DMA slave ID 0 is invalid
  mmc: tmio: fix regression in TMIO_MMC_WRPROTECT_DISABLE handling
  mmc: omap_hsmmc: use original sg_len for dma_unmap_sg
  mmc: omap_hsmmc: fix ocr mask usage
  mmc: sdio: fix runtime PM path during driver removal
  mmc: Add PCI fixup quirks for Ricoh 1180:e823 reader
  mmc: sdhi: fix module unloading
  mmc: of_mmc_spi: add NO_IRQ define to of_mmc_spi.c
  mmc: vub300: fix null dereferences in error handling
2011-06-27 14:55:43 -07:00
KAMEZAWA Hiroyuki c6830c2260 Fix node_start/end_pfn() definition for mm/page_cgroup.c
commit 21a3c96 uses node_start/end_pfn(nid) for detection start/end
of nodes. But, it's not defined in linux/mmzone.h but defined in
/arch/???/include/mmzone.h which is included only under
CONFIG_NEED_MULTIPLE_NODES=y.

Then, we see
  mm/page_cgroup.c: In function 'page_cgroup_init':
  mm/page_cgroup.c:308: error: implicit declaration of function 'node_start_pfn'
  mm/page_cgroup.c:309: error: implicit declaration of function 'node_end_pfn'

So, fixiing page_cgroup.c is an idea...

But node_start_pfn()/node_end_pfn() is a very generic macro and
should be implemented in the same manner for all archs.
(m32r has different implementation...)

This patch removes definitions of node_start/end_pfn() in each archs
and defines a unified one in linux/mmzone.h. It's not under
CONFIG_NEED_MULTIPLE_NODES, now.

A result of macro expansion is here (mm/page_cgroup.c)

for !NUMA
 start_pfn = ((&contig_page_data)->node_start_pfn);
  end_pfn = ({ pg_data_t *__pgdat = (&contig_page_data); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;});

for NUMA (x86-64)
  start_pfn = ((node_data[nid])->node_start_pfn);
  end_pfn = ({ pg_data_t *__pgdat = (node_data[nid]); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;});

Changelog:
 - fixed to avoid using "nid" twice in node_end_pfn() macro.

Reported-and-acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27 14:13:09 -07:00
Arik Nemtsov a66b98db57 mac80211: fix rx->key NULL dereference during mic failure
Sometimes when reporting a MIC failure rx->key may be unset. This
code path is hit when receiving a packet meant for a multicast
address, and decryption is performed in HW.

Fortunately, the failing key_idx is not used for anything up to
(and including) usermode, so we allow ourselves to drop it on the
way up when a key cannot be retrieved.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-27 14:45:25 -04:00
Linus Torvalds 4d362ad280 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: Remove unneeded version.h includes from sound/
  ASoC: pxa-ssp: Correct check for stream presence
  ASoC: imx: add missing module informations
  ASoC: imx: Remove unused Kconfig SND_MXC_SOC_SSI entry
  ALSA: HDA: Pinfix quirk for HP Z200 Workstation
  ALSA: VIA HDA: Create a master amplifier control for VT1718S.
  ALSA: VIA HDA: Mute/unmute mixer conncted to Headphone for VT1718S.
  ALSA: VIA HDA: Modify initial verbs list for VT1718S.
  ALSA: hda - Remove ALC268 model override for CPR2000
  ALSA: HDA: Remove quirk for an HP device
  ASoC: Remove unused and about to be broken SND_SOC_CUSTOM I/O bus
2011-06-25 07:23:27 -07:00
Linus Torvalds 5220cc9382 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
* 'for-linus' of git://git.kernel.dk/linux-block:
  block: add REQ_SECURE to REQ_COMMON_MASK
  block: use the passed in @bdev when claiming if partno is zero
  block: Add __attribute__((format(printf...) and fix fallout
  block: make disk_block_events() properly wait for work cancellation
  block: remove non-syncing __disk_block_events() and fold it into disk_block_events()
  block: don't use non-syncing event blocking in disk_check_events()
  cfq-iosched: fix locking around ioc->ioc_data assignment
2011-06-24 08:42:35 -07:00
Takashi Iwai e093811857 Merge branch 'fix/asoc' into for-linus 2011-06-24 12:36:25 +02:00
Timur Tabi 39785eb1d3 fsl-diu-fb: remove check for pixel clock ranges
The Freescale DIU framebuffer driver defines two constants, MIN_PIX_CLK and
MAX_PIX_CLK, that are supposed to represent the lower and upper limits of
the pixel clock.  These values, however, are true only for one platform
clock rate (533MHz) and only for the MPC8610.  So the actual range for
the pixel clock is chip-specific, which means the current values are almost
always wrong.  The chance of an out-of-range pixel clock being used are also
remote.

Rather than try to detect an out-of-range clock in the DIU driver, we depend
on the board-specific pixel clock function (e.g. p1022ds_set_pixel_clock)
to clamp the pixel clock to a supported value.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-24 17:08:49 +09:00
Linus Torvalds 68d0080f1e Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PCI / PM: Block races between runtime PM and system sleep
  PM / Domains: Update documentation
  PM / Runtime: Handle clocks correctly if CONFIG_PM_RUNTIME is unset
  PM: Fix async resume following suspend failure
  PM: Free memory bitmaps if opening /dev/snapshot fails
  PM: Rename dev_pm_info.in_suspend to is_prepared
  PM: Update documentation regarding sysdevs
  PM / Runtime: Update doc: usage count no longer incremented across system PM
2011-06-22 21:08:52 -07:00
Linus Torvalds 2992c4bd57 Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFS: Fix decode_secinfo_maxsz
  NFSv4.1: Fix an off-by-one error in pnfs_generic_pg_test
  NFSv4.1: Fix some issues with pnfs_generic_pg_test
  NFSv4.1: file layout must consider pg_bsize for coalescing
  pnfs-obj: No longer needed to take an extra ref at add_device
  SUNRPC: Ensure the RPC client only quits on fatal signals
  NFSv4: Fix a readdir regression
  nfs4.1: mark layout as bad on error path in _pnfs_return_layout
  nfs4.1: prevent race that allowed use of freed layout in _pnfs_return_layout
  NFSv4.1: need to put_layout_hdr on _pnfs_return_layout error path
  NFS: (d)printks should use %zd for ssize_t arguments
  NFSv4.1: fix break condition in pnfs_find_lseg
  nfs4.1: fix several problems with _pnfs_return_layout
  NFSv4.1: allow zero fh array in filelayout decode layout
  NFSv4.1: allow nfs_fhget to succeed with mounted on fileid
  NFSv4.1: Fix a refcounting issue in the pNFS device id cache
  NFSv4.1: deprecate headerpadsz in CREATE_SESSION
  NFS41: do not update isize if inode needs layoutcommit
  NLM: Don't hang forever on NLM unlock requests
  NFS: fix umount of pnfs filesystems
2011-06-21 18:20:55 -07:00
Alan Stern 6d0e0e84f6 PM: Fix async resume following suspend failure
The PM core doesn't handle suspend failures correctly when it comes to
asynchronously suspended devices.  These devices are moved onto the
dpm_suspended_list as soon as the corresponding async thread is
started up, and they remain on the list even if they fail to suspend
or the sleep transition is cancelled before they get suspended.  As a
result, when the PM core unwinds the transition, it tries to resume
the devices even though they were never suspended.

This patch (as1474) fixes the problem by adding a new "is_suspended"
flag to dev_pm_info.  Devices are resumed only if the flag is set.

[rjw:
 * Moved the dev->power.is_suspended check into device_resume(),
   because we need to complete dev->power.completion and clear
   dev->power.is_prepared too for devices whose
   dev->power.is_suspended flags are unset.
 * Fixed __device_suspend() to avoid setting dev->power.is_suspended
   if async_error is different from zero.]

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org
2011-06-21 23:20:20 +02:00
Alan Stern f76b168b6f PM: Rename dev_pm_info.in_suspend to is_prepared
This patch (as1473) renames the "in_suspend" field in struct
dev_pm_info to "is_prepared", in preparation for an upcoming change.
The new name is more descriptive of what the field really means.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org
2011-06-21 23:19:50 +02:00
Linus Torvalds 890879cfa0 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  jbd2: Fix oops in jbd2_journal_remove_journal_head()
  jbd2: Remove obsolete parameters in the comments for some jbd2 functions
  ext4: fixed tracepoints cleanup
  ext4: use FIEMAP_EXTENT_LAST flag for last extent in fiemap
  ext4: Fix max file size and logical block counting of extent format file
  ext4: correct comments for ext4_free_blocks()
2011-06-21 10:22:35 -07:00
Linus Torvalds 79568f5be0 vfs: i_state needs to be 'unsigned long' for now
Commit 13e12d14e2 ("vfs: reorganize 'struct inode' layout a bit")
moved things around a bit changed i_state to be unsigned int instead of
unsigned long.  That was to help structure layout for the 64-bit case,
and shrink 'struct inode' a bit (admittedly that only happened when
spinlock debugging was on and i_flags didn't pack with i_lock).

However, Meelis Roos reports that this results in unaligned exceptions
on sprc, and it turns out that the bit-locking primitives that we use
for the I_NEW bit want to use the bitops.  Which want 'unsigned long',
not 'unsigned int'.

We really should fix the bit locking code to not have that kind of
requirement, but that's a much bigger change.  So for now, revert that
field back to 'unsigned long' (but keep the other re-ordering changes
from the commit that caused this).

Andi points out that we have played games with this in 'struct page', so
it's solvable with other hacks too, but since right now the struct inode
size advantage only happens with some rare config options, it's not
worth fighting.

It _would_ be worth fixing the bitlocking code, though.  Especially
since there is no type safety in the bitlocking code (this never caused
any warnings, and worked fine on x86-64, because the bitlocks take a
'void *' and x86-64 doesn't care that deeply about alignment).  So it's
currently a very easy problem to trigger by mistake and never notice.

Reported-by: Meelis Roos <mroos@linux.ee>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-20 20:13:49 -07:00
Linus Torvalds eda0841094 Merge branch 'for-2.6.40' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.40' of git://linux-nfs.org/~bfields/linux:
  nfsd4: fix break_lease flags on nfsd open
  nfsd: link returns nfserr_delay when breaking lease
  nfsd: v4 support requires CRYPTO
  nfsd: fix dependency of nfsd on auth_rpcgss
2011-06-20 20:10:52 -07:00
Linus Torvalds 6e158d2198 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits)
  pxa168_eth: fix race in transmit path.
  ipv4, ping: Remove duplicate icmp.h include
  netxen: fix race in skb->len access
  sgi-xp: fix a use after free
  hp100: fix an skb->len race
  netpoll: copy dev name of slaves to struct netpoll
  ipv4: fix multicast losses
  r8169: fix static initializers.
  inet_diag: fix inet_diag_bc_audit()
  gigaset: call module_put before restart of if_open()
  farsync: add module_put to error path in fst_open()
  net: rfs: enable RFS before first data packet is received
  fs_enet: fix freescale FCC ethernet dp buffer alignment
  netdev: bfin_mac: fix memory leak when freeing dma descriptors
  vlan: don't call ndo_vlan_rx_register on hardware that doesn't have vlan support
  caif: Bugfix - XOFF removed channel from caif-mux
  tun: teach the tun/tap driver to support netpoll
  dp83640: drop PHY status frames in the driver.
  dp83640: fix phy status frame event parsing
  phylib: Allow BCM63XX PHY to be selected only on BCM63XX.
  ...
2011-06-20 20:10:18 -07:00
Linus Torvalds 3669820650 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  devcgroup_inode_permission: take "is it a device node" checks to inlined wrapper
  fix comment in generic_permission()
  kill obsolete comment for follow_down()
  proc_sys_permission() is OK in RCU mode
  reiserfs_permission() doesn't need to bail out in RCU mode
  proc_fd_permission() is doesn't need to bail out in RCU mode
  nilfs2_permission() doesn't need to bail out in RCU mode
  logfs doesn't need ->permission() at all
  coda_ioctl_permission() is safe in RCU mode
  cifs_permission() doesn't need to bail out in RCU mode
  bad_inode_permission() is safe from RCU mode
  ubifs: dereferencing an ERR_PTR in ubifs_mount()
2011-06-20 20:09:15 -07:00
Benny Halevy 19345cb299 NFSv4.1: file layout must consider pg_bsize for coalescing
Otherwise we end up overflowing the rpc buffer size on the receive end.

Signed-off-by: Benny Halevy <benny@tonian.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-06-20 16:12:26 -04:00
Linus Torvalds c01ad40819 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: sh_keysc - 8x8 MODE_6 fix
  Input: omap-keypad - add missing input_sync()
  Input: evdev - try to wake up readers only if we have full packet
  Input: properly assign return value of clamp() macro.
2011-06-20 08:59:46 -07:00
Al Viro 482e0cd3db devcgroup_inode_permission: take "is it a device node" checks to inlined wrapper
inode_permission() calls devcgroup_inode_permission() and almost all such
calls are _not_ for device nodes; let's at least keep the common path
straight...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-06-20 10:46:04 -04:00
Namhyung Kim 155d109b5f block: add REQ_SECURE to REQ_COMMON_MASK
Add REQ_SECURE flag to REQ_COMMON_MASK so that
init_request_from_bio() can pass it to @req->cmd_flags.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@kernel.org # 2.6.36 and newer
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-06-20 13:23:14 +02:00
Linus Torvalds 8816ead9d8 Merge branches 'perf-urgent-for-linus', 'sched-urgent-for-linus', 'timers-urgent-for-linus' and 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tools/perf: Fix static build of perf tool
  tracing: Fix regression in printk_formats file

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  generic-ipi: Fix kexec boot crash by initializing call_single_queue before enabling interrupts

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  clocksource: Make watchdog robust vs. interruption
  timerfd: Fix wakeup of processes when timer is cancelled on clock change

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, MAINTAINERS: Add x86 MCE people
  x86, efi: Do not reserve boot services regions within reserved areas
2011-06-19 09:00:18 -07:00
Linus Torvalds 357ed6b1a1 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rcu: Move RCU_BOOST #ifdefs to header file
  rcu: use softirq instead of kthreads except when RCU_BOOST=y
  rcu: Use softirq to address performance regression
  rcu: Simplify curing of load woes
2011-06-19 08:56:56 -07:00
Manoj Iyer be98ca652f mmc: Add PCI fixup quirks for Ricoh 1180:e823 reader
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-06-18 22:18:18 -04:00
Magnus Damm cca23d0b53 Input: sh_keysc - 8x8 MODE_6 fix
According to the data sheet for G4, AP4 and AG5 KEYSC MODE_6 is 8x8 keys.
Bump up MAXKEYS to 64 too.

Signed-off-by: Magnus Damm <damm@opensource.se>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-06-18 02:55:01 -07:00
Linus Torvalds 0835619348 Merge branches 'gpio/merge' and 'spi/merge' of git://git.secretlab.ca/git/linux-2.6
* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6:
  gpio: add GPIOF_ values regardless on kconfig settings
  gpio: include linux/gpio.h where needed
  gpio/omap4: Fix missing interrupts during device wakeup due to IOPAD.

* 'spi/merge' of git://git.secretlab.ca/git/linux-2.6:
  spi/bfin_spi: fix handling of default bits per word setting
2011-06-17 10:36:32 -07:00
David Howells 879669961b KEYS/DNS: Fix ____call_usermodehelper() to not lose the session keyring
____call_usermodehelper() now erases any credentials set by the
subprocess_inf::init() function.  The problem is that commit
17f60a7da1 ("capabilites: allow the application of capability limits
to usermode helpers") creates and commits new credentials with
prepare_kernel_cred() after the call to the init() function.  This wipes
all keyrings after umh_keys_init() is called.

The best way to deal with this is to put the init() call just prior to
the commit_creds() call, and pass the cred pointer to init().  That
means that umh_keys_init() and suchlike can modify the credentials
_before_ they are published and potentially in use by the rest of the
system.

This prevents request_key() from working as it is prevented from passing
the session keyring it set up with the authorisation token to
/sbin/request-key, and so the latter can't assume the authority to
instantiate the key.  This causes the in-kernel DNS resolver to fail
with ENOKEY unconditionally.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Eric Paris <eparis@redhat.com>
Tested-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-17 09:40:48 -07:00
Takao Indoh d8ad7d1123 generic-ipi: Fix kexec boot crash by initializing call_single_queue before enabling interrupts
There is a problem that kdump(2nd kernel) sometimes hangs up due
to a pending IPI from 1st kernel. Kernel panic occurs because IPI
comes before call_single_queue is initialized.

To fix the crash, rename init_call_single_data() to call_function_init()
and call it in start_kernel() so that call_single_queue can be
initialized before enabling interrupts.

The details of the crash are:

 (1) 2nd kernel boots up

 (2) A pending IPI from 1st kernel comes when irqs are first enabled
     in start_kernel().

 (3) Kernel tries to handle the interrupt, but call_single_queue
     is not initialized yet at this point. As a result, in the
     generic_smp_call_function_single_interrupt(), NULL pointer
     dereference occurs when list_replace_init() tries to access
     &q->list.next.

Therefore this patch changes the name of init_call_single_data()
to call_function_init() and calls it before local_irq_enable()
in start_kernel().

Signed-off-by: Takao Indoh <indou.takao@jp.fujitsu.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Milton Miller <miltonm@bga.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: kexec@lists.infradead.org
Link: http://lkml.kernel.org/r/D6CBEE2F420741indou.takao@jp.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-06-17 10:17:12 +02:00
David S. Miller 3009adf5ac Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6 2011-06-16 21:38:01 -04:00