The rt bitmap and summary inodes do not participate in the normal inode
locking protocol. Instead the rt bitmap inode can be locked in any
transaction involving rt allocations, and the both of the rt inodes can
be locked at the same time. Add specific lockdep subclasses for the rt
inodes to prevent lockdep from blowing up.
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
xfs: fix xfs_get_extsz_hint for a zero extent size hint
We can easily set the extsize flag without setting an extent size
hint, or one that evaluates to zero. Historically the di_extsize
field was only used when it was non-zero, but the commit
"Cleanup inode extent size hint extraction"
broke this. Restore the old behaviour, thus fixing xfsqa 090 with
a debug kernel.
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
xfs: only lock the rt bitmap inode once per allocation
Currently both xfs_rtpick_extent and xfs_rtallocate_extent call
xfs_trans_iget to grab and lock the rt bitmap inode, which results in a
deadlock since the removal of the lock recursion counters in commit
"xfs: simplify inode to transaction joining"
Fix this by acquiring and locking the inode in xfs_bmap_rtalloc before
calling into xfs_rtpick_extent and xfs_rtallocate_extent.
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
bpm@sgi.com [Wed, 19 Jan 2011 17:41:58 +0000 (17:41 +0000)]
xfs: xfs_bmap_add_extent_delay_real should init br_startblock
When filling in the middle of a previous delayed allocation in
xfs_bmap_add_extent_delay_real, set br_startblock of the new delay
extent to the right to nullstartblock instead of 0 before inserting
the extent into the ifork (xfs_iext_insert), rather than setting
br_startblock afterward.
Adding the extent into the ifork with br_startblock=0 can lead to
the extent being copied into the btree by xfs_bmap_extent_to_btree
if we happen to convert from extents format to btree format before
updating br_startblock with the correct value. The unexpected
addition of this delay extent to the btree can cause subsequent
XFS_WANT_CORRUPTED_GOTO filesystem shutdown in several
xfs_bmap_add_extent_delay_real cases where we are converting a delay
extent to real and unexpectedly find an extent already inserted.
For example:
911 case BMAP_LEFT_FILLING:
912 /*
913 * Filling in the first part of a previous delayed allocation.
914 * The left neighbor is not contiguous.
915 */
916 trace_xfs_bmap_pre_update(ip, idx, state, _THIS_IP_);
917 xfs_bmbt_set_startoff(ep, new_endoff);
918 temp = PREV.br_blockcount - new->br_blockcount;
919 xfs_bmbt_set_blockcount(ep, temp);
920 xfs_iext_insert(ip, idx, 1, new, state);
921 ip->i_df.if_lastex = idx;
922 ip->i_d.di_nextents++;
923 if (cur == NULL)
924 rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
925 else {
926 rval = XFS_ILOG_CORE;
927 if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
928 new->br_startblock, new->br_blockcount,
929 &i)))
930 goto done;
931 XFS_WANT_CORRUPTED_GOTO(i == 0, done);
With the bogus extent in the btree we shutdown the filesystem at
931. The conversion from extents to btree format happens when the
number of extents in the inode increases above ip->i_df.if_ext_max.
xfs_bmap_extent_to_btree copies extents from the ifork into the
btree, ignoring all delalloc extents which are denoted by
br_startblock having some value of nullstartblock.
Dave Chinner [Fri, 28 Jan 2011 00:20:46 +0000 (11:20 +1100)]
xfs: fix dquot shaker deadlock
Commit 368e136 ("xfs: remove duplicate code from dquot reclaim") fails
to unlock the dquot freelist when the number of loop restarts is
exceeded in xfs_qm_dqreclaim_one(). This causes hangs in memory
reclaim.
Rework the loop control logic into an unwind stack that all the
different cases jump into. This means there is only one set of code
that processes the loop exit criteria, and simplifies the unlocking
of all the items from different points in the loop. It also fixes a
double increment of the restart counter from the qi_dqlist_lock
case.
Reported-by: Malcolm Scott <lkml@malc.org.uk> Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Alex Elder <aelder@sgi.com>
Failure to commit a transaction into the CIL is not handled
correctly. This currently can only happen when racing with a
shutdown and requires an explicit shutdown check, so it rare and can
be avoided. Remove the shutdown check and make the CIL commit a void
function to indicate it will always succeed, thereby removing the
incorrectly handled failure case.
Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Thu, 27 Jan 2011 01:18:18 +0000 (12:18 +1100)]
xfs: limit extsize to size of AGs and/or MAXEXTLEN
The extent size hint can be set to larger than an AG. This means
that the alignment process can push the range to be allocated
outside the bounds of the AG, resulting in assert failures or
corrupted bmbt records. Similarly, if the extsize is larger than the
maximum extent size supported, the alignment process will produce
extents that are too large to fit into the bmbt records, resulting
in a different type of assert/corruption failure.
Fix this by limiting extsize at the time іt is set firstly to be
less than MAXEXTLEN, then to be a maximum of half the size of the
AGs in the filesystem for non-realtime inodes. Realtime inodes do
not allocate out of AGs, so don't have to be restricted by the size
of AGs.
Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Thu, 27 Jan 2011 01:17:58 +0000 (12:17 +1100)]
xfs: prevent extsize alignment from exceeding maximum extent size
When doing delayed allocation, if the allocation size is for a
maximally sized extent, extent size alignment can push it over this
limit. This results in an assert failure in xfs_bmbt_set_allf() as
the extent length is too large to find in the extent record.
Fix this by ensuring that we allow for space that extent size
alignment requires (up to 2 * (extsize -1) blocks as we have to
handle both head and tail alignment) when limiting the maximum size
of the extent.
Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com>
Dave Chinner [Thu, 27 Jan 2011 01:16:28 +0000 (12:16 +1100)]
xfs: limit extent length for allocation to AG size
Delayed allocation extents can be larger than AGs, so when trying to
convert a large range we may scan every AG inside
xfs_bmap_alloc_nullfb() trying to find an AG with a size larger than
an AG. We should stop when we find the first AG with a maximum
possible allocation size. This causes excessive CPU usage when there
are lots of AGs.
The same problem occurs when doing preallocation of a range larger
than an AG.
Fix the problem by limiting real allocation lengths to the maximum
that an AG can support. This means if we have empty AGs, we'll stop
the search at the first of them. If there are no empty AGs, we'll
still scan them all, but that is a different problem....
Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com>
rounddown_power_of_2() returns an undefined result when passed a
value of zero. The specualtive delayed allocation code is doing this
when the inode is zero length. Hence occasionally the preallocation
is much, much larger than is necessary (e.g. 8GB for a 270 _byte_
file). Ensure we don't even pass a zero value to this function so
the result of preallocation is always the desired size.
Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com>
The cause of the leak is that the "remove" parameter of IOP_UNPIN()
is never set when a CIL push is aborted. This means that the EFI
item is never freed if it was in the push being cancelled. The
problem is specific to delayed logging, but has uncovered a couple
of problems with the handling of IOP_UNPIN(remove).
Firstly, we cannot safely call xfs_trans_del_item() from IOP_UNPIN()
in the CIL commit failure path or the iclog write failure path
because for delayed loging we have no transaction context. Hence we
must only call xfs_trans_del_item() if the log item being unpinned
has an active log item descriptor.
Secondly, xfs_trans_uncommit() does not handle log item descriptor
freeing during the traversal of log items on a transaction. It can
reference a freed log item descriptor when unpinning an EFI item.
Hence it needs to use a safe list traversal method to allow items to
be removed from the transaction during IOP_UNPIN().
Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Alex Elder <aelder@sgi.com>
Linus Torvalds [Tue, 18 Jan 2011 22:29:37 +0000 (14:29 -0800)]
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf: Validate cpu early in perf_event_alloc()
perf: Find_get_context: fix the per-cpu-counter check
perf: Fix contexted inheritance
Linus Torvalds [Tue, 18 Jan 2011 22:29:21 +0000 (14:29 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Clear irqstack thread_info
x86: Make relocatable kernel work with new binutils
Linus Torvalds [Tue, 18 Jan 2011 22:28:48 +0000 (14:28 -0800)]
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (26 commits)
MIPS: Malta: enable Cirrus FB console
MIPS: add CONFIG_VIRTUALIZATION for virtio support
MIPS: Implement __read_mostly
MIPS: ath79: add common WMAC device for AR913X based boards
MIPS: ath79: Add initial support for the Atheros AP81 reference board
MIPS: ath79: add common SPI controller device
SPI: Add SPI controller driver for the Atheros AR71XX/AR724X/AR913X SoCs
MIPS: ath79: add common GPIO buttons device
MIPS: ath79: add common watchdog device
MIPS: ath79: add common GPIO LEDs device
MIPS: ath79: add initial support for the Atheros PB44 reference board
MIPS: ath79: utilize the MIPS multi-machine support
MIPS: ath79: add GPIOLIB support
MIPS: Add initial support for the Atheros AR71XX/AR724X/AR931X SoCs
MIPS: jump label: Add MIPS support.
MIPS: Use WARN() in uasm for better diagnostics.
MIPS: Optimize TLB handlers for Octeon CPUs
MIPS: Add LDX and LWX instructions to uasm.
MIPS: Use BBIT instructions in TLB handlers
MIPS: Declare uasm bbit0 and bbit1 functions.
...
Oleg Nesterov [Tue, 18 Jan 2011 16:10:08 +0000 (17:10 +0100)]
perf: Find_get_context: fix the per-cpu-counter check
If task == NULL, find_get_context() should always check that cpu
is correct.
Afaics, the bug was introduced by 38a81da2 "perf events: Clean
up pid passing", but even before that commit "&& cpu != -1" was
not exactly right, -ESRCH from find_task_by_vpid() is not
accurate.
Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Prasad <prasad@linux.vnet.ibm.com> Cc: Roland McGrath <roland@redhat.com> Cc: gregkh@suse.de Cc: stable@kernel.org
LKML-Reference: <20110118161008.GB693@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Aurelien Jarno [Tue, 18 Jan 2011 11:20:45 +0000 (12:20 +0100)]
MIPS: Malta: enable Cirrus FB console
While most users of a physical Malta board are using the serial port
as the console, a lot of QEMU users would prefer to interact with a
graphical console. Enable the Cirrus FB support in the Malta default
configuration to make that possible. Note that the default console will
still be the serial port, users have to pass "console=tty0" to the
kernel to use the Cirrus FB.
David Daney [Thu, 14 Oct 2010 19:36:49 +0000 (12:36 -0700)]
MIPS: Implement __read_mostly
Just do what everyone else is doing by placing __read_mostly things in
the .data.read_mostly section.
mips_io_port_base can not be read-only (const) and writable
(__read_mostly) at the same time. One of them has to go, so I chose
to eliminate the __read_mostly. It will still get stuck in a portion
of memory that is not adjacent to things that are written, and thus
not be on a dirty cache line, for whatever that is worth.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1702/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Gabor Juhos [Tue, 4 Jan 2011 20:28:29 +0000 (21:28 +0100)]
MIPS: ath79: add common WMAC device for AR913X based boards
Add common platform_device and helper code to make the registration
of the built-in wireless MAC easier on the Atheros AR9130/AR9132
based boards. Also register the WMAC device on the AR81 board.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Imre Kaloz <kaloz@openwrt.org>, Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com>
Patchwork: https://patchwork.linux-mips.org/patch/1962/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Gabor Juhos [Tue, 4 Jan 2011 20:28:23 +0000 (21:28 +0100)]
MIPS: ath79: add common SPI controller device
Several boards are using the built-in SPI controller of the
AR71XX/AR724X/AR913X SoCs. This patch adds common platform_device
and helper code to register it. Additionally, the patch registers
the SPI bus on the PB44 board.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com>
Patchwork: https://patchwork.linux-mips.org/patch/1956/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The current patch contains minimal support only, but the resulting
kernel can boot into user-space with using of an initramfs image on
various boards which are using these SoCs. Support for more built-in
devices and individual boards will be implemented in further patches.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Imre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com>
Patchwork: https://patchwork.linux-mips.org/patch/1947/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 28 Dec 2010 21:26:23 +0000 (13:26 -0800)]
MIPS: jump label: Add MIPS support.
In order not to be left behind, we add jump label support for MIPS.
Tested on 64-bit big endian (Octeon), and 32-bit little endian
(malta/qemu).
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@redhat.com>
Patchwork: https://patchwork.linux-mips.org/patch/1923/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 28 Dec 2010 02:18:29 +0000 (18:18 -0800)]
MIPS: Use WARN() in uasm for better diagnostics.
On the off chance that uasm ever warns about overflow, there is no way
to know what the offending instruction is.
Change the printks to WARNs, so we can get a nice stack trace. It has
the added benefit of being much more noticeable than the short single
line warning message, so is less likely to be ignored.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1905/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Mon, 20 Dec 2010 23:54:50 +0000 (15:54 -0800)]
MIPS: Use BBIT instructions in TLB handlers
If the CPU supports BBIT0 and BBIT1, use them in TLB handlers as they
are more efficient than an AND followed by an branch and then
restoring the clobbered register.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1873/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Gabor Juhos [Tue, 23 Nov 2010 15:06:25 +0000 (16:06 +0100)]
MIPS: Add generic support for multiple machines within a single kernel
This patch adds a generic solution to support multiple machines based on
a given SoC within a single kernel image. It is implemented already for
several other architectures but MIPS has no generic support for that yet.
[Ralf: This competes with DT but DT is a much more complex solution and this
code has been used by OpenWRT for a long time so for now DT is a bad reason
to stop the merge but longer term this should be migrated to DT.]
Linus Torvalds [Tue, 18 Jan 2011 16:05:50 +0000 (08:05 -0800)]
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: hda - Fix initialization for HP 2011 notebooks
ALSA: hda - Add support for VMware controller
ALSA: hda - consitify string arrays
ALSA: hda - Add add multi-streaming playback for AD1988
ASoC: EP93xx: fixed LRCLK rate and DMA oper. in I2S code
ASoC: WM8990: msleep() takes milliseconds not jiffies
ALSA : au88x0 - Limit number of channels to fix Oops via OSS emu
ALSA: constify functions in ac97
ASoC: WL1273 FM radio: Fix breakage with MFD API changes
ALSA: hda - More coverage for odd-number channels elimination for HDMI
ALSA: hda - Store PCM parameters properly in HDMI open callback
ALSA: hda - Rearrange fixup struct in patch_realtek.c
ALSA: oxygen: Xonar DG: fix CS4245 register writes
ALSA: hda - Suppress the odd number of channels for HDMI
ALSA: hda - Add fixup-call in init callback
ALSA: hda - Reorganize fixup structure for Realtek
ALSA: hda - Apply Sony VAIO hweq fixup only once
ALSA: hda - Apply mario fixup only once
ALSA: hda - Remove unused fixup entry for ALC262
Linus Torvalds [Tue, 18 Jan 2011 16:05:20 +0000 (08:05 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (25 commits)
m68knommu: fix broken setting of irq_chip and handler
m68knommu: switch to using -mcpu= flags for ColdFire targets
m68knommu: arch/m68knommu/Kconfig whitespace cleanup
m68knommu: create optimal separate instruction and data cache for ColdFire
m68knommu: support ColdFire caches that do copyback and write-through
m68knommu: support version 2 ColdFire split cache
m68knommu: make cache push code ColdFire generic
m68knommu: clean up ColdFire cache control code
m68knommu: move inclusion of ColdFire v4 cache registers
m68knommu: merge bit definitions for version 3 ColdFire cache controller
m68knommu: create bit definitions for the version 2 ColdFire cache controller
m68knommu: remove empty __iounmap() it is no used
m68knommu: remove kernel_map() code, it is not used
m68knommu: remove do_page_fault(), it is not used
m68knommu: use user stack pointer hardware on some ColdFire cores
m68knommu: remove command line printing DEBUG
m68knommu: remove fasthandler interrupt code
m68knommu: move UART addressing to part specific includes
m68knommu: fix clock rate value reported for ColdFire 54xx parts
m68knommu: move ColdFire CPU names into their headers
...
Linus Torvalds [Tue, 18 Jan 2011 16:04:30 +0000 (08:04 -0800)]
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf tools: Fix tracepoint id to string perf.data header table
perf tools: Fix handling of wildcards in tracepoint event selectors
powerpc: perf: Fix frequency calculation for overflowing counters
Linus Torvalds [Tue, 18 Jan 2011 15:58:36 +0000 (07:58 -0800)]
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:
autofs4: clean ->d_release() and autofs4_free_ino() up
autofs4: split autofs4_init_ino()
autofs4: mkdir and symlink always get a dentry that had passed lookup
autofs4: autofs4_get_inode() doesn't need autofs_info * argument anymore
autofs4: kill ->size in autofs_info
autofs4: pass mode to autofs4_get_inode() explicitly
autofs4: autofs4_mkroot() is not different from autofs4_init_ino()
autofs4: keep symlink body in inode->i_private
autofs4 - fix debug print in autofs4_lookup()
vfs - fix dentry ref count in do_lookup()
autofs4 - fix get_next_positive_dentry()
Shaohua Li [Tue, 18 Jan 2011 00:57:49 +0000 (08:57 +0800)]
x86: Make relocatable kernel work with new binutils
The CONFIG_RELOCATABLE=y option is broken with new binutils, which will make
boot panic.
According to Lu Hongjiu, the affected binutils are from 2.20.51.0.12 to
2.21.51.0.3, which are release since Oct 22 this year. At least ubuntu 10.10 is
using such binutils. See:
The reason of the boot panic is that we have 'jiffies = jiffies_64;' in
vmlinux.lds.S. The jiffies isn't in any section. In kernel build, there is
warning saying jiffies is an absolute address and can't be relocatable. At
runtime, jiffies will have virtual address 0.
Signed-off-by: Shaohua Li<shaohua.li@intel.com> Cc: Lu Hongjiu<hongjiu.lu@intel.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <1295312269.1949.725.camel@sli10-conroe> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Raymond Yau [Mon, 17 Jan 2011 10:19:03 +0000 (11:19 +0100)]
ALSA: hda - Add add multi-streaming playback for AD1988
Attached a patch which add a new model to support multi-streaming
playback for ad1988.
playback another stereo stream through the front panel headphone on
device 2 while playback through the speakers connected to rear panel
on device 0 at the same time.
Tested with ad1988a rev2 codec on asus P5B-V motherboard.
Signed-off-by: Raymond Yau <superquad.vortex2@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Al Viro [Sun, 16 Jan 2011 23:43:40 +0000 (18:43 -0500)]
autofs4: split autofs4_init_ino()
split init_ino into new_ino and clean_ino; the former is
what used to be init_ino(NULL, sbi), the latter is for cases
where we passed non-NULL ino. Lose unused arguments.
Acked-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sun, 16 Jan 2011 22:39:15 +0000 (17:39 -0500)]
autofs4: kill ->size in autofs_info
It's used only to pass the length of symlink body to
autofs4_get_inode() in autofs4_dir_symlink(). We can
bloody well set inode->i_size in autofs4_dir_symlink()
directly and be done with that.
Acked-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sun, 16 Jan 2011 22:20:23 +0000 (17:20 -0500)]
autofs4: pass mode to autofs4_get_inode() explicitly
In all cases we'd set inf->mode to know value just before
passing it to autofs4_get_inode(). That kills the need
to store it in autofs_info and pass it to autofs_init_ino()
Acked-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Ian Kent [Tue, 18 Jan 2011 04:06:10 +0000 (12:06 +0800)]
vfs - fix dentry ref count in do_lookup()
There is a ref count problem in fs/namei.c:do_lookup().
When walking in ref-walk mode, if follow_managed() returns a fail we
need to drop dentry and possibly vfsmount. Clean up properly,
as we do in the other caller of follow_managed().
Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Ian Kent [Tue, 18 Jan 2011 04:06:04 +0000 (12:06 +0800)]
autofs4 - fix get_next_positive_dentry()
The initialization condition in fs/autofs4/expire.c:get_next_positive_dentry()
appears to be incorrect. If prev == NULL I believe that root should be
returned.
Further down, at the current dentry check for it being simple_positive()
it looks like the d_lock for dentry p should be dropped instead of dentry
ret, otherwise when p is assinged to ret we end up with no lock on p and
a lost lock on ret, which leads to a deadlock.
Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jassi Brar [Tue, 21 Dec 2010 00:44:33 +0000 (09:44 +0900)]
ARM: S5P6442: Enable I2S device to work on SMDK6442
Add missing virtual ASoC DMA device.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
[kgene.kim@samsung.com: minor changed title] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Andres Salomon [Tue, 18 Jan 2011 00:11:12 +0000 (16:11 -0800)]
staging: fix build failure in bcm driver
While building latest Linus git, I hit the following:
CC [M] drivers/staging/bcm/Qos.o
drivers/staging/bcm/Qos.c: In function ‘PruneQueue’:
drivers/staging/bcm/Qos.c:367: error: ‘struct netdev_queue’ has no member named ‘tx_dropped’
drivers/staging/bcm/Qos.c: In function ‘flush_all_queues’:
drivers/staging/bcm/Qos.c:416: error: ‘struct netdev_queue’ has no member named ‘tx_dropped’
make[5]: *** [drivers/staging/bcm/Qos.o] Error 1
make[4]: *** [drivers/staging/bcm] Error 2
make[3]: *** [drivers/staging] Error 2
As well as:
CC [M] drivers/staging/bcm/Transmit.o
drivers/staging/bcm/Transmit.c: In function ‘SetupNextSend’:
drivers/staging/bcm/Transmit.c:163: error: ‘struct netdev_queue’ has no member named ‘tx_bytes’
drivers/staging/bcm/Transmit.c:164: error: ‘struct netdev_queue’ has no member named ‘tx_packets’
make[2]: *** [drivers/staging/bcm/Transmit.o] Error 1
tx_dropped/tx_bytes_tx_packets were removed in commit 1ac9ad13. This patch
converts bcm to use net_device_stats instead of netdev_queue.
Acked-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 17 Jan 2011 22:45:48 +0000 (14:45 -0800)]
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:
RDMA: Update workqueue usage
RDMA/nes: Fix incorrect SFP+ link status detection on driver init
RDMA/nes: Fix SFP+ link down detection issue with switch port disable
RDMA/nes: Generate IB_EVENT_PORT_ERR/PORT_ACTIVE events
RDMA/nes: Fix bonding on iw_nes
IB/srp: Test only once whether iu allocation succeeded
IB/mlx4: Handle protocol field in multicast table
RDMA: Use vzalloc() to replace vmalloc()+memset(0)
mlx4_{core, ib, en}: Fix driver when sizeof (phys_addr_t) > sizeof (long)
IB/mthca: Fix driver when sizeof (phys_addr_t) > sizeof (long)
Linus Torvalds [Mon, 17 Jan 2011 22:43:43 +0000 (14:43 -0800)]
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: (25 commits)
Btrfs: forced readonly mounts on errors
btrfs: Require CAP_SYS_ADMIN for filesystem rebalance
Btrfs: don't warn if we get ENOSPC in btrfs_block_rsv_check
btrfs: Fix memory leak in btrfs_read_fs_root_no_radix()
btrfs: check NULL or not
btrfs: Don't pass NULL ptr to func that may deref it.
btrfs: mount failure return value fix
btrfs: Mem leak in btrfs_get_acl()
btrfs: fix wrong free space information of btrfs
btrfs: make the chunk allocator utilize the devices better
btrfs: restructure find_free_dev_extent()
btrfs: fix wrong calculation of stripe size
btrfs: try to reclaim some space when chunk allocation fails
btrfs: fix wrong data space statistics
fs/btrfs: Fix build of ctree
Btrfs: fix off by one while setting block groups readonly
Btrfs: Add BTRFS_IOC_SUBVOL_GETFLAGS/SETFLAGS ioctls
Btrfs: Add readonly snapshots support
Btrfs: Refactor btrfs_ioctl_snap_create()
btrfs: Extract duplicate decompress code
...
Chris Mason ended up chasing down some page allocation errors and pages
stuck waiting on the IO scheduler, and was able to narrow it down to two
commits: commit 744ed1442757 ("mm: batch activate_page() to reduce lock
contention") and d8505dee1a87 ("mm: simplify code of swap.c").
This reverts the second one.
Reported-and-debugged-by: Chris Mason <chris.mason@oracle.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <jaxboe@fusionio.com> Cc: linux-mm <linux-mm@kvack.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chris Mason ended up chasing down some page allocation errors and pages
stuck waiting on the IO scheduler, and was able to narrow it down to two
commits: commit 744ed1442757 ("mm: batch activate_page() to reduce lock
contention") and d8505dee1a87 ("mm: simplify code of swap.c").
This reverts the first of them.
Reported-and-debugged-by: Chris Mason <chris.mason@oracle.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <jaxboe@fusionio.com> Cc: linux-mm <linux-mm@kvack.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 17 Jan 2011 20:39:57 +0000 (12:39 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
ecryptfs: remove unnecessary decrypt when extending a file
ecryptfs: Fix ecryptfs_printk() size_t warnings
fs/ecryptfs: Add printf format/argument verification and fix fallout
ecryptfs: fixed testing of file descriptor flags
ecryptfs: test lower_file pointer when lower_file_mutex is locked
ecryptfs: missing initialization of the superblock 'magic' field
ecryptfs: moved ECRYPTFS_SUPER_MAGIC definition to linux/magic.h
ecryptfs: fix truncation error in ecryptfs_read_update_atime
perf tools: Fix tracepoint id to string perf.data header table
It was broken by f006d25 that passed just the event name, not the complete
sys:event that it expected to open the /sys/.../sys/sys:event/id file to get
the id.
Fix it by moving it to after parse_events in cmd_record, as at that point
we can just traverse the evsel_list and use evsel->attr.config +
event_name(evsel) instead of re-opening the /id file.
Reported-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Han Pingtian <phan@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <20110117202801.GG2085@ghostprotocols.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
liubo [Thu, 6 Jan 2011 11:30:25 +0000 (19:30 +0800)]
Btrfs: forced readonly mounts on errors
This patch comes from "Forced readonly mounts on errors" ideas.
As we know, this is the first step in being more fault tolerant of disk
corruptions instead of just using BUG() statements.
The major content:
- add a framework for generating errors that should result in filesystems
going readonly.
- keep FS state in disk super block.
- make sure that all of resource will be freed and released at umount time.
- make sure that fter FS is forced readonly on error, there will be no more
disk change before FS is corrected. For this, we should stop write operation.
After this patch is applied, the conversion from BUG() to such a framework can
happen incrementally.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: add cruid= mount option
cifs: cFYI the entire error code in map_smb_to_linux_error
Linus Torvalds [Mon, 17 Jan 2011 19:15:30 +0000 (11:15 -0800)]
Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (59 commits)
mtd: mtdpart: disallow reading OOB past the end of the partition
mtd: pxa3xx_nand: NULL dereference in pxa3xx_nand_probe
UBI: use mtd->writebufsize to set minimal I/O unit size
mtd: initialize writebufsize in the MTD object of a partition
mtd: onenand: add mtd->writebufsize initialization
mtd: nand: add mtd->writebufsize initialization
mtd: cfi: add writebufsize initialization
mtd: add writebufsize field to mtd_info struct
mtd: OneNAND: OMAP2/3: prevent regulator sleeping while OneNAND is in use
mtd: OneNAND: add enable / disable methods to onenand_chip
mtd: m25p80: Fix JEDEC ID for AT26DF321
mtd: txx9ndfmc: limit transfer bytes to 512 (ECC provides 6 bytes max)
mtd: cfi_cmdset_0002: add support for Samsung K8D3x16UxC NOR chips
mtd: cfi_cmdset_0002: add support for Samsung K8D6x16UxM NOR chips
mtd: nand: ams-delta: drop omap_read/write, use ioremap
mtd: m25p80: add debugging trace in sst_write
mtd: nand: ams-delta: select for built-in by default
mtd: OneNAND: lighten scary initial bad block messages
mtd: OneNAND: OMAP2/3: add support for command line partitioning
mtd: nand: rearrange ONFI revision checking, add ONFI 2.3
...
Fix up trivial conflict in drivers/mtd/Kconfig as per DavidW.
Frank Swiderski [Mon, 15 Nov 2010 18:43:22 +0000 (10:43 -0800)]
ecryptfs: remove unnecessary decrypt when extending a file
Removes an unecessary page decrypt from ecryptfs_begin_write when the
page is beyond the current file size. Previously, the call to
ecryptfs_decrypt_page would result in a read of 0 bytes, but still
attempt to decrypt an entire page. This patch detects that case and
merely zeros the page before marking it up-to-date.
Signed-off-by: Frank Swiderski <fes@chromium.org> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Mon, 15 Nov 2010 23:36:38 +0000 (17:36 -0600)]
ecryptfs: Fix ecryptfs_printk() size_t warnings
Commit cb55d21f6fa19d8c6c2680d90317ce88c1f57269 revealed a number of
missing 'z' length modifiers in calls to ecryptfs_printk() when
printing variables of type size_t. This patch fixes those compiler
warnings.
Linus Torvalds [Mon, 17 Jan 2011 19:00:09 +0000 (11:00 -0800)]
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:
fs: fix address space warnings in ioctl_fiemap()
aio: check return value of create_workqueue()
hpfs_setattr error case avoids unlock_kernel
compat: copy missing fields in compat_statfs64 to user
compat: update comment of compat statfs syscalls
compat: remove unnecessary assignment in compat_rw_copy_check_uvector()
fs: FS_POSIX_ACL does not depend on BLOCK
fs: Remove unlikely() from fget_light()
fs: Remove unlikely() from fput_light()
fallocate should be a file operation
make the feature checks in ->fallocate future proof
staging: smbfs building fix
tidy up around finish_automount()
don't drop newmnt on error in do_add_mount()
Take the completion of automount into new helper
Linus Torvalds [Mon, 17 Jan 2011 18:58:44 +0000 (10:58 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6:
alpha: fix WARN_ON in __local_bh_enable()
alpha: fix breakage caused by df9ee29270
alpha: add GENERIC_HARDIRQS_NO__DO_IRQ to Kconfig
alpha/osf_sys: remove unused MAX_SELECT_SECONDS
alpha: change to new Makefile flag variables
alpha: kill off alpha_do_IRQ
alpha: irq clean up
alpha: use set_irq_chip and push down __do_IRQ to the machine types
Linus Torvalds [Mon, 17 Jan 2011 18:57:59 +0000 (10:57 -0800)]
Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon/kms: balance asic_reset functions
drm/radeon/kms: remove duplicate card_posted() functions
drm/radeon/kms: add module option for pcie gen2
drm/radeon/kms: fix typo in evergreen safe reg
drm/nouveau: fix gpu page faults triggered by plymouthd
drm/nouveau: greatly simplify mm, killing some bugs in the process
drm/nvc0: enable protection of system-use-only structures in vm
drm/nv40: initialise 0x17xx on all chipsets that have it
drm/nv40: make detection of 0x4097-ful chipsets available everywhere
Linus Torvalds [Mon, 17 Jan 2011 18:54:41 +0000 (10:54 -0800)]
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (63 commits)
ARM: PL08x: cleanup comments
Update CONFIG_MD_RAID6_PQ to CONFIG_RAID6_PQ in drivers/dma/iop-adma.c
ARM: PL08x: fix a warning
Fix dmaengine_submit() return type
dmaengine: at_hdmac: fix race while monitoring channel status
dmaengine: at_hdmac: flags located in first descriptor
dmaengine: at_hdmac: use subsys_initcall instead of module_init
dmaengine: at_hdmac: no need set ACK in new descriptor
dmaengine: at_hdmac: trivial add precision to unmapping comment
dmaengine: at_hdmac: use dma_address to program DMA hardware
pch_dma: support new device ML7213 IOH
ARM: PL08x: prevent dma_set_runtime_config() reconfiguring memcpy channels
ARM: PL08x: allow dma_set_runtime_config() to return errors
ARM: PL08x: fix locking between prepare function and submit function
ARM: PL08x: introduce 'phychan_hold' to hold on to physical channels
ARM: PL08x: put txd's on the pending list in pl08x_tx_submit()
ARM: PL08x: rename 'desc_list' as 'pend_list'
ARM: PL08x: implement unmapping of memcpy buffers
ARM: PL08x: store prep_* flags in async_tx structure
ARM: PL08x: shrink srcbus/dstbus in txd structure
...
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