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Commit Graph

263472 Commits

Author SHA1 Message Date
Jiaying Zhang
dccaf33fa3 ext4: flush any pending end_io requests before DIO reads w/dioread_nolock
There is a race between ext4 buffer write and direct_IO read with
dioread_nolock mount option enabled. The problem is that we clear
PageWriteback flag during end_io time but will do
uninitialized-to-initialized extent conversion later with dioread_nolock.
If an O_direct read request comes in during this period, ext4 will return
zero instead of the recently written data.

This patch checks whether there are any pending uninitialized-to-initialized
extent conversion requests before doing O_direct read to close the race.
Note that this is just a bandaid fix. The fundamental issue is that we
clear PageWriteback flag before we really complete an IO, which is
problem-prone. To fix the fundamental issue, we may need to implement an
extent tree cache that we can use to look up pending to-be-converted extents.

Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
2011-08-19 19:13:32 -04:00
Jesse Barnes
b095cd0a0c drm/i915: set GFX_MODE to pre-Ivybridge default value even on Ivybridge
Prior to Ivybridge, the GFX_MODE would default to 0x800, meaning that
MI_FLUSH would flush the TLBs in addition to the rest of the caches
indicated in the MI_FLUSH command.  However starting with Ivybridge, the
register defaults to 0x2800 out of reset, meaning that to invalidate the
TLB we need to use PIPE_CONTROL.  Since we're not doing that yet, go
back to the old default so things work.

v2: don't forget to actually *clear* the new bit

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-19 11:57:12 -07:00
Linus Torvalds
5ccc38740a Merge branch 'for-linus' of git://git.kernel.dk/linux-block
* 'for-linus' of git://git.kernel.dk/linux-block: (23 commits)
  Revert "cfq: Remove special treatment for metadata rqs."
  block: fix flush machinery for stacking drivers with differring flush flags
  block: improve rq_affinity placement
  blktrace: add FLUSH/FUA support
  Move some REQ flags to the common bio/request area
  allow blk_flush_policy to return REQ_FSEQ_DATA independent of *FLUSH
  xen/blkback: Make description more obvious.
  cfq-iosched: Add documentation about idling
  block: Make rq_affinity = 1 work as expected
  block: swim3: fix unterminated of_device_id table
  block/genhd.c: remove useless cast in diskstats_show()
  drivers/cdrom/cdrom.c: relax check on dvd manufacturer value
  drivers/block/drbd/drbd_nl.c: use bitmap_parse instead of __bitmap_parse
  bsg-lib: add module.h include
  cfq-iosched: Reduce linked group count upon group destruction
  blk-throttle: correctly determine sync bio
  loop: fix deadlock when sysfs and LOOP_CLR_FD race against each other
  loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop devices
  loop: add management interface for on-demand device allocation
  loop: replace linked list of allocated devices with an idr index
  ...
2011-08-19 10:47:07 -07:00
Linus Torvalds
0c3bef6128 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: OF: Don't crash when bridge parent is NULL.
  PCI: export pcie_bus_configure_settings symbol
  PCI: code and comments cleanup
  PCI: make cardbus-bridge resources optional
  PCI: make SRIOV resources optional
  PCI : ability to relocate assigned pci-resources
  PCI: honor child buses add_size in hot plug configuration
  PCI: Set PCI-E Max Payload Size on fabric
2011-08-19 10:02:37 -07:00
Vasily Khoruzhick
815efa1eab s3c-adc-battery: Fix compilation error due to missing header (module.h)
Add linux/module.h to fix this compilation error:

drivers/power/s3c_adc_battery.c:435:15: error: expected declaration specifiers or ‘...’ before string constant
drivers/power/s3c_adc_battery.c:435:1: warning: data definition has no type or storage class
drivers/power/s3c_adc_battery.c:435:1: warning: type defaults to ‘int’ in declaration of ‘MODULE_AUTHOR’
drivers/power/s3c_adc_battery.c:435:15: warning: function declaration isn’t a prototype
drivers/power/s3c_adc_battery.c:436:20: error: expected declaration specifiers or ‘...’ before string constant
drivers/power/s3c_adc_battery.c:436:1: warning: data definition has no type or storage class
drivers/power/s3c_adc_battery.c:436:1: warning: type defaults to ‘int’ in declaration of ‘MODULE_DESCRIPTION’
drivers/power/s3c_adc_battery.c:436:20: warning: function declaration isn’t a prototype
drivers/power/s3c_adc_battery.c:437:16: error: expected declaration specifiers or ‘...’ before string constant
drivers/power/s3c_adc_battery.c:437:1: warning: data definition has no type or storage class
drivers/power/s3c_adc_battery.c:437:1: warning: type defaults to ‘int’ in declaration of ‘MODULE_LICENSE’
drivers/power/s3c_adc_battery.c:437:16: warning: function declaration isn’t a prototype
make[2]: *** [drivers/power/s3c_adc_battery.o] Error 1

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Ian Lartey <ian@opensource.wolfsonmicro.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-08-19 21:01:46 +04:00
Axel Lin
71aa79a8c2 max8997_charger: Needs module.h
power/max8997_charger.c uses interfaces from linux/module.h,
so it should include that file.  This fixes build errors.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-08-19 21:01:41 +04:00
Randy Dunlap
d555ab6bb3 max8998_charger: Needs module.h
power/max8998_charger.c uses interfaces from linux/module.h,
so it should include that file.  This fixes build errors.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-08-19 20:56:58 +04:00
David Daney
69566dd8be PCI: OF: Don't crash when bridge parent is NULL.
In pcibios_get_phb_of_node(), we will crash while booting if
bus->bridge->parent is NULL.

Check for this case and avoid dereferencing the NULL pointer.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-19 08:51:37 -07:00
Dominik Brodowski
498ca793d9 cpupower: use man(1) when calling "cpupower help subcommand"
Instead of printing something non-formatted to stdout, call
man(1) to show the man page for the proper subcommand.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-19 17:13:56 +02:00
Dominik Brodowski
47c336307a cpupower: make NLS truly optional
Loosely based on a patch for cpufrequtils, submittted by
Sergey Dryabzhinsky <sergey.dryabzhinsky@gmail.com> and

signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-19 17:00:02 +02:00
Dave Jones
63b37de128 cpupower: fix Makefile typo
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-08-19 16:49:49 +02:00
Wu Fengguang
bb0822954a squeeze max-pause area and drop pass-good area
Revert the pass-good area introduced in ffd1f609ab ("writeback:
introduce max-pause and pass-good dirty limits") and make the max-pause
area smaller and safe.

This fixes ~30% performance regression in the ext3 data=writeback
fio_mmap_randwrite_64k/fio_mmap_randrw_64k test cases, where there are
12 JBOD disks, on each disk runs 8 concurrent tasks doing reads+writes.

Using deadline scheduler also has a regression, but not that big as CFQ,
so this suggests we have some write starvation.

The test logs show that

- the disks are sometimes under utilized

- global dirty pages sometimes rush high to the pass-good area for
  several hundred seconds, while in the mean time some bdi dirty pages
  drop to very low value (bdi_dirty << bdi_thresh).  Then suddenly the
  global dirty pages dropped under global dirty threshold and bdi_dirty
  rush very high (for example, 2 times higher than bdi_thresh). During
  which time balance_dirty_pages() is not called at all.

So the problems are

1) The random writes progress so slow that they break the assumption of
   the max-pause logic that "8 pages per 200ms is typically more than
   enough to curb heavy dirtiers".

2) The max-pause logic ignored task_bdi_thresh and thus opens the possibility
   for some bdi's to over dirty pages, leading to (bdi_dirty >> bdi_thresh)
   and then (bdi_thresh >> bdi_dirty) for others.

3) The higher max-pause/pass-good thresholds somehow leads to the bad
   swing of dirty pages.

The fix is to allow the task to slightly dirty over task_bdi_thresh, but
no way to exceed bdi_dirty and/or global dirty_thresh.

Tests show that it fixed the JBOD regression completely (both behavior
and performance), while still being able to cut down large pause times
in balance_dirty_pages() for single-disk cases.

Reported-by: Li Shaohua <shaohua.li@intel.com>
Tested-by: Li Shaohua <shaohua.li@intel.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
2011-08-19 22:42:07 +08:00
Daniel Baluta
98e77438ae ipv6: Fix ipv6_getsockopt for IPV6_2292PKTOPTIONS
IPV6_2292PKTOPTIONS is broken for 32-bit applications running
in COMPAT mode on 64-bit kernels.

The same problem was fixed for IPv4 with the patch:
ipv4: Fix ip_getsockopt for IP_PKTOPTIONS,
commit dd23198e58

Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com>
Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-19 03:19:07 -07:00
Jens Axboe
b53d1ed734 Revert "cfq: Remove special treatment for metadata rqs."
We have a kernel build regression since 3.1-rc1, which is about 10%
regression. The kernel source is in an ext3 filesystem.
Alex Shi bisect it to commit:
commit a07405b780
Author: Justin TerAvest <teravest@google.com>
Date:   Sun Jul 10 22:09:19 2011 +0200

    cfq: Remove special treatment for metadata rqs.

Apparently this is caused by lack metadata preemption, where ext3/ext4
do use READ_META. I didn't see a way to fix the issue, so suggest
reverting the patch.

This reverts commit a07405b780.

Reported-by: Alex Shi<alex.shi@intel.com>
Reported-by: Shaohua Li<shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-19 08:34:48 +02:00
Takashi Iwai
38b65190c6 ALSA: usb-audio - Fix missing mixer dB information
The recent fix for testing dB range at the mixer creation time seems
to cause regressions in some devices.  In such devices, reading the dB
info at probing time gives an error, thus both dBmin and dBmax are still
zero, and TLV flag isn't set although the later read of dB info succeeds.

This patch adds a workaround for such a case by assuming that the later
read will succeed.  In future, a similar test should be performed in a
case where a wrong dB range is seen even in the later read.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@kernel.org>
2011-08-19 07:55:10 +02:00
Linus Torvalds
01b883358b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: fix array bounds error setting up PCIC NMI trap
2011-08-18 22:49:34 -07:00
Linus Torvalds
2c4ac99f98 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  drivers/ata/sata_dwc_460ex.c: add missing kfree
  ata: Add iMX pata support
  pata_via: disable ATAPI DMA on AVERATEC 3200
  [libata] sata_sil: fix used-uninit warning
2011-08-18 22:48:30 -07:00
Linus Torvalds
35a21b4299 Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4.1: Return NFS4ERR_BADSESSION to callbacks during session resets
  NFSv4.1: Fix the callback 'highest_used_slotid' behaviour
  pnfs-obj: Fix the comp_index != 0 case
  pnfs-obj: Bug when we are running out of bio
  nfs: add missing prefetch.h include
2011-08-18 22:47:13 -07:00
Ian Campbell
4a0342ca8e sparc: fix array bounds error setting up PCIC NMI trap
CC      arch/sparc/kernel/pcic.o
arch/sparc/kernel/pcic.c: In function 'pcic_probe':
arch/sparc/kernel/pcic.c:359:33: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:359:8: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:360:33: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:360:8: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:361:33: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:361:8: error: array subscript is above array bounds [-Werror=array-bounds]
cc1: all warnings being treated as errors

I'm not particularly familiar with sparc but t_nmi (defined in head_32.S via
the TRAP_ENTRY macro) and pcic_nmi_trap_patch (defined in entry.S) both appear
to be 4 instructions long and I presume from the usage that instructions are
int sized.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-18 21:47:40 -07:00
Willem de Bruijn
2d5b2c5ca0 net: netdev-features.txt update to Documentation/networking/00-INDEX
Update netdev-features.txt entry in 00-INDEX to incorporate
feedback by Michał Mirosław.

v2: restored tabs that were inadvertently changed to spaces in v1.
sorry for the error.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-18 21:30:37 -07:00
Jiri Pirko
c5114cd59d vlan: reset headers on accel emulation path
It's after all necessary to do reset headers here. The reason is we
cannot depend that it gets reseted in __netif_receive_skb once skb is
reinjected. For incoming vlanids without vlan_dev, vlan_do_receive()
returns false with skb != NULL and __netif_reveive_skb continues, skb is
not reinjected.

This might be good material for 3.0-stable as well

Reported-by: Mike Auty <mike.auty@gmail.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-18 21:29:27 -07:00
Julia Lawall
a081da630d drivers/ata/sata_dwc_460ex.c: add missing kfree
Currently, error handling code in this function calls the function
sata_dwc_port_stop, but this function has essentially no effect if hsdevp
has not been stored in ap, which is the case throughout this function.  The
only effect is to print a debugging message including ap->print_id.

The code is rewritten to not call sata_dwc_port_stop, but instead to jump
to a local label that prints the original error message and the print_id
information.  In the case where hsdevp has been already allocated (but not
yet stored in ap), this value is freed as well.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@exists@
local idexpression x;
statement S,S1;
expression E;
identifier fl;
expression *ptr != NULL;
@@

x = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...kfree(x)...+> }
     when any
     when != true x == NULL
x->fl
...>
(
if (x == NULL) S1
|
if (...) { ... when != x
               when forall
(
 return \(0\|<+...x...+>\|ptr\);
|
* return ...;
)
}
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-08-18 23:58:11 -04:00
Arnaud Patard (Rtp)
e39c75cf3e ata: Add iMX pata support
Add basic support for pata on iMX. It has been tested only on imx51.
SDMA support will probably be added later so this version supports only
PIO.

v2:
  - enable only when needed IORDY
  - use dev_get_drvdata
v3:
  - add missing clk_put() calls
  - use platform_get_irq()
  - fix resume code to avoid disabling IORDY on resume
v4:
  - Remove EXPERIMENTAL and switch to depends on ARCH_MXC
  - Use devm_kzalloc()
  - make clock a must-have
  - Use only 1 ioremap

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-08-18 23:57:58 -04:00
Tejun Heo
6d0e194d2e pata_via: disable ATAPI DMA on AVERATEC 3200
On AVERATEC 3200, pata_via causes memory corruption with ATAPI DMA,
which often leads to random kernel oops.  The cause of the problem is
not well understood yet and only small subset of machines using the
controller seem affected.  Blacklist ATAPI DMA on the machine.

Signed-off-by: Tejun Heo <tj@kernel.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=11426
Reported-and-tested-by: Jim Bray <jimsantelmo@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-08-18 23:56:39 -04:00
Jeff Garzik
ebd1699ec5 [libata] sata_sil: fix used-uninit warning
Init 'serror' to silence the following warning:

drivers/ata/sata_sil.c: In function ‘sil_interrupt’:
drivers/ata/sata_sil.c:453:14: warning: ‘serror’ may be used uninitialized in
this function [-Wuninitialized]

This is not a 'can never happen' but is nonetheless extremely unlikely.
The easiest and cleanest warning fix is simply to init the var,
rather than worry about marking the var uninit-ok.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-08-18 23:52:36 -04:00
Linus Torvalds
5c80c71b9a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: set i_size properly when fallocating and we already
  btrfs: unlock on error in btrfs_file_llseek()
  btrfs: btrfs_permission's RO check shouldn't apply to device nodes
  Btrfs: truncate pages from clone ioctl target range
  Btrfs: fix uninitialized sync_pending
  Btrfs: fix wrong free space information
  btrfs: memory leak in btrfs_add_inode_defrag()
  Btrfs: use plain page_address() in header fields setget functions
  Btrfs: forced readonly when btrfs_drop_snapshot() fails
  Btrfs: check if there is enough space for balancing smarter
  Btrfs: fix a bug of balance on full multi-disk partitions
  Btrfs: fix an oops of log replay
  Btrfs: detect wether a device supports discard
  Btrfs: force unplugs when switching from high to regular priority bios
2011-08-18 14:20:00 -07:00
Linus Torvalds
01fa4ba52c Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  update cifs version to 1.75
  [CIFS] possible memory corruption on mount
  cifs: demote cERROR in build_path_from_dentry to cFYI
2011-08-18 14:19:36 -07:00
Linus Torvalds
fbad8991ef Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/iser: Support iSCSI PDU padding
  IBiser: Fix wrong mask when sizeof (dma_addr_t) > sizeof (unsigned long)
  IPoIB: Fix possible NULL dereference in ipoib_start_xmit()
2011-08-18 14:18:55 -07:00
Linus Torvalds
f6a975c50a Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6:
  fat: fat16 support maximum 4GB file/vol size as WinXP or 7.
  fat: fix utf8 iocharset warning message
  fat: fix build warning
2011-08-18 14:16:13 -07:00
Randy Dunlap
d522a0d179 irqdesc: fix new kernel-doc warning
Fix kernel-doc warning in irqdesc.c:

  Warning(kernel/irq/irqdesc.c:353): No description found for parameter 'owner'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-18 14:12:48 -07:00
Mathias Krause
8cf2d2399a i7core_edac: fixed typo in error count calculation
Based on a patch from the PaX Team, found during a clang analysis pass.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: PaX Team <pageexec@freemail.hu>
Cc: stable@kernel.org [v2.6.35+]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-18 14:07:15 -07:00
Ingo Molnar
fe4c51b220 Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent 2011-08-18 21:51:44 +02:00
Steve French
04c05b4a68 update cifs version to 1.75
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-18 16:55:10 +00:00
Steve French
13589c437d [CIFS] possible memory corruption on mount
CIFS cleanup_volume_info_contents() looks like having a memory
corruption problem.
When UNCip is set to "&vol->UNC[2]" in cifs_parse_mount_options(), it
should not be kfree()-ed in cleanup_volume_info_contents().

Introduced in commit b946845a9d

Signed-off-by: J.R. Okajima <hooanon05@yahoo.co.jp>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
CC: Stable <stable@kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-18 16:53:02 +00:00
Jarkko Nikula
e574044acb ASoC: omap: Fix build errors in ams-delta
Fix "error: too few arguments to function 'ams_delta_set_bias_level'"
build errors in ams-delta.c that were introduced after commit d4c6005 ("ASoC:
Add context parameter to card DAPM callbacks") by adding dapm context
to ams_delta_set_bias_level calls.

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-08-19 01:19:45 +09:00
Chris Mason
81d86e1b70 Merge branch 'btrfs-3.0' into for-linus 2011-08-18 10:38:03 -04:00
Josef Bacik
f1e490a7eb Btrfs: set i_size properly when fallocating and we already
xfstests exposed a problem with preallocate when it fallocates a range that
already has an extent.  We don't set the new i_size properly because we see that
we already have an extent.  This isn't right and we should update i_size if the
space already exists.  With this patch we now pass xfstests 075.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-18 10:36:39 -04:00
Dan Carpenter
9a4327ca1f btrfs: unlock on error in btrfs_file_llseek()
There were some unlocks on error missing in a recent patch to
btrfs_file_llseek().

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-18 10:16:05 -04:00
Jeff Mahoney
cb6db4e576 btrfs: btrfs_permission's RO check shouldn't apply to device nodes
This patch tightens the read-only access checks in btrfs_permission to
 match the constraints in inode_permission. Currently, even though the
 device node itself will be unmodified, read-write access to device nodes
 is denied to when the device node resides on a read-only subvolume or a
 is a file that has been marked read-only by the btrfs conversion utility.

 With this patch applied, the check only affects regular files,
 directories, and symlinks. It also restructures the code a bit so that
 we don't duplicate the MAY_WRITE check for both tests.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-18 10:16:03 -04:00
Takashi Iwai
3fe45aeaf2 ALSA: hda - Add "PCM" volume to vmaster slave list
The new parser may use "PCM" volume, but it was missing the vmaster
slave list, thus "Master" volume didn't control it.

Reference: https://bugzilla.kernel.org/show_bug.cgi?id=41342

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-18 15:13:17 +02:00
Lin Ming
43bece7979 perf tools: Add group event scheduling option to perf record/stat
Group event scheduling command line option is missing in perf
record/stat.

Add it to perf record/stat, which is same as in perf top.

Reported-by: Andi Kleen <andi@firstfloor.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1313577727.2754.5.camel@hp6530s
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:35:46 -03:00
Geunsik Lim
d53e8365ea MAINTAINERS: Fix list of perf events source files
Recent changes made kernel/perf_event.c be split and moved to
kernel/events/.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Kosina <trivial@kernel.org>
Cc: Joe Perches <joe@perches.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1313653497-27263-1-git-send-email-leemgs1@gmail.com
Signed-off-by: Geunsik Lim <geunsik.lim@samsung.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:26:05 -03:00
Josh Boyer
195bcbf507 perf tools: Fix build against newer glibc
Upstream glibc commit 295e904 added a definition for __attribute_const__
to cdefs.h.  This causes the following error when building perf:

util/include/linux/compiler.h:8:0: error: "__attribute_const__"
redefined [-Werror] /usr/include/sys/cdefs.h:226:0: note: this is the
location of the previous definition

Wrap __attribute_const__ in #ifndef as we do for __always_inline.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20110818113720.GL2227@zod.bos.redhat.com
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:24:53 -03:00
Stephane Eranian
777d1d71db perf tools: Fix error handling of unknown events
There was a problem with the parse_events() code not printing the
correct event name when an event was unknown and starting with an 'r'.
The source of the problem was the way raw notation was parsed.

Without the patch:
	$ perf stat -e retired_foo
	invalid event modifier: 'tired_foo'

With the patch:
	$ perf stat -e retired_foo
	invalid or unsupported event: 'retired_foo'

This also covers the case where the name of the event was not printed at
all when perf was linked with libpfm4.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20110723021043.GA20178@quad
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:21:13 -03:00
Stephane Eranian
cc2d86b04d perf evlist: Fix missing event name init for default event
When no event is given to perf record, perf top, a default event is
initialized (cycles). However, perf_evlist__add_default() was not
setting the symbolic name for the event. Perf top worked simply because
it was reconstructing the name from the event code. But it should not
have to do this. This patch initializes the evsel->name field properly.

This second version improves the code flow on the non error path.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20110607161936.GA8163@quad
Signed-off-by: Stephane Eranian <eranian@google.com>
[committer note: Use perf_evsel__delete() instead of plain free()]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:20:31 -03:00
Stephane Eranian
77e57297b4 perf list: Fix exit value
This patch fixes an issue with the exit value of perf list:

$ perf list; echo $?
129

perf list returns an error exit code even though there is no error.

There was a stray exit(129) in print_events(). This patch removes this
exit().

$ perf list; echo $?
0

$ perf list hw sw
  cpu-cycles OR cycles                               [Hardware event]
  stalled-cycles-frontend OR idle-cycles-frontend    [Hardware event]
  stalled-cycles-backend OR idle-cycles-backend      [Hardware event]
  instructions                                       [Hardware event]
  cache-references                                   [Hardware event]
  cache-misses                                       [Hardware event]
  branch-instructions OR branches                    [Hardware event]
  branch-misses                                      [Hardware event]
  bus-cycles                                         [Hardware event]

  cpu-clock                                          [Software event]
  task-clock                                         [Software event]
  page-faults OR faults                              [Software event]
  minor-faults                                       [Software event]
  major-faults                                       [Software event]
  context-switches OR cs                             [Software event]
  cpu-migrations OR migrations                       [Software event]
  alignment-faults                                   [Software event]
  emulation-faults                                   [Software event]
$ echo $?
0

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20110523123917.GA31060@quad
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-08-18 07:19:15 -03:00
Jiri Pirko
9331db4f00 forcedeth: call vlan_mode only if hw supports vlans
If hw does not support vlans, dont call nv_vlan_mode because it has no point.
I believe that this should fix issues on older non-vlan supportive
chips (like Ingo has).

Reported-ty: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 23:50:37 -07:00
Jiri Pirko
9a75a97296 via-velocity: remove non-tagged packet filtering
It's undesired to filter untagged packets at any time. So simply remove this.

Reported-by: Stephan Bärwolf <stephan.baerwolf@tu-ilmenau.de>
Tested-by: Stephan Bärwolf <stephan.baerwolf@tu-ilmenau.de>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 20:13:39 -07:00
Peter Pan(潘卫平)
ba3211ccd0 bonding:reset backup and inactive flag of slave
Eduard Sinelnikov (eduard.sinelnikov@gmail.com) found that if we change
bonding mode from active backup to round robin, some slaves are still keeping
"backup", and won't transmit packets.

As Jay Vosburgh(fubar@us.ibm.com) pointed out that we can work around that by
removing the bond_is_active_slave() check, because the "backup" flag is only
meaningful for active backup mode.

But if we just simply ignore the bond_is_active_slave() check,
the transmission will work fine, but we can't maintain the correct value of
"backup" flag for each slaves, though it is meaningless for other mode than
active backup.

I'd like to reset "backup" and "inactive" flag in bond_open,
thus we can keep the correct value of them.

As for bond_is_active_slave(), I'd like to prepare another patch to handle it.

V2:
Use C style comment.
Move read_lock(&bond->curr_slave_lock).
Replace restore with reset, for active backup mode, it means "restore",
but for other modes, it means "reset".

Signed-off-by: Weiping Pan <panweiping3@gmail.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 20:12:06 -07:00
Jamal Hadi Salim
8919bc13e8 net_sched: fix port mirror/redirect stats reporting
When a redirected or mirrored packet is dropped by the target
device we need to record statistics.

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-17 20:10:20 -07:00