1. 12 Apr, 2011 2 commits
  2. 11 Apr, 2011 13 commits
  3. 10 Apr, 2011 2 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 · 4263a2f1
      Linus Torvalds authored
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
        ALSA: hda - Don't query connections for widgets have no connections
        ALSA: HDA: Fix single internal mic on ALC275 (Sony Vaio VPCSB1C5E)
        ALSA: hda - HDMI: Fix MCP7x audio infoframe checksums
        ALSA: usb-audio: define another USB ID for a buggy USB MIDI cable
        ALSA: HDA: Fix dock mic for Lenovo X220-tablet
        ASoC: format_register_str: Don't clip register values
        ASoC: PXA: Fix oops in __pxa2xx_pcm_prepare
        ASoC: zylonite: set .codec_dai_name in initializer
    • J. Bruce Fields's avatar
      nfsd4: fix oops on lock failure · 23fcf2ec
      J. Bruce Fields authored
      Lock stateid's can have access_bmap 0 if they were only partially
      initialized (due to a failed lock request); handle that case in
      ------------[ cut here ]------------
      kernel BUG at fs/nfsd/nfs4state.c:380!
      invalid opcode: 0000 [#1] SMP
      last sysfs file: /sys/kernel/mm/ksm/run
      Modules linked in: nfs fscache md4 nls_utf8 cifs ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat bridge stp llc nfsd lockd nfs_acl auth_rpcgss sunrpc ipv6 ppdev parport_pc parport pcnet32 mii pcspkr microcode i2c_piix4 BusLogic floppy [last unloaded: mperf]
      Pid: 1468, comm: nfsd Not tainted 2.6.38+ #120 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform
      EIP: 0060:[<e24f180d>] EFLAGS: 00010297 CPU: 0
      EIP is at nfs4_access_to_omode+0x1c/0x29 [nfsd]
      EAX: ffffffff EBX: dd758120 ECX: 00000000 EDX: 00000004
      ESI: dd758120 EDI: ddfe657c EBP: dd54dde0 ESP: dd54dde0
       DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
      Process nfsd (pid: 1468, ti=dd54c000 task=ddc92580 task.ti=dd54c000)
       dd54ddf0 e24f19ca 00000000 ddfe6560 dd54de08 e24f1a5d dd758130 deee3a20
       ddfe6560 31270000 dd54df1c e24f52fd 0000000f dd758090 e2505dd0 0be304cf
       dbb51d68 0000000e ddfe657c ddcd8020 dd758130 dd758128 dd7580d8 dd54de68
      Call Trace:
       [<e24f19ca>] free_generic_stateid+0x1c/0x3e [nfsd]
       [<e24f1a5d>] release_lockowner+0x71/0x8a [nfsd]
       [<e24f52fd>] nfsd4_lock+0x617/0x66c [nfsd]
       [<e24e57b6>] ? nfsd_setuser+0x199/0x1bb [nfsd]
       [<e24e056c>] ? nfsd_setuser_and_check_port+0x65/0x81 [nfsd]
       [<c07a0052>] ? _cond_resched+0x8/0x1c
       [<c04ca61f>] ? slab_pre_alloc_hook.clone.33+0x23/0x27
       [<c04cac01>] ? kmem_cache_alloc+0x1a/0xd2
       [<c04835a0>] ? __call_rcu+0xd7/0xdd
       [<e24e0dfb>] ? fh_verify+0x401/0x452 [nfsd]
       [<e24f0b61>] ? nfsd4_encode_operation+0x52/0x117 [nfsd]
       [<e24ea0d7>] ? nfsd4_putfh+0x33/0x3b [nfsd]
       [<e24f4ce6>] ? nfsd4_delegreturn+0xd4/0xd4 [nfsd]
       [<e24ea2c9>] nfsd4_proc_compound+0x1ea/0x33e [nfsd]
       [<e24de6ee>] nfsd_dispatch+0xd1/0x1a5 [nfsd]
       [<e1d6e1c7>] svc_process_common+0x282/0x46f [sunrpc]
       [<e1d6e578>] svc_process+0xdc/0xfa [sunrpc]
       [<e24de0fa>] nfsd+0xd6/0x115 [nfsd]
       [<e24de024>] ? nfsd_shutdown+0x24/0x24 [nfsd]
       [<c0454322>] kthread+0x62/0x67
       [<c04542c0>] ? kthread_worker_fn+0x114/0x114
       [<c07a6ebe>] kernel_thread_helper+0x6/0x10
      Code: eb 05 b8 00 00 27 4f 8d 65 f4 5b 5e 5f 5d c3 83 e0 03 55 83 f8 02 89 e5 74 17 83 f8 03 74 05 48 75 09 eb 09 b8 02 00 00 00 eb 0b <0f> 0b 31 c0 eb 05 b8 01 00 00 00 5d c3 55 89 e5 57 56 89 d6 8d
      EIP: [<e24f180d>] nfs4_access_to_omode+0x1c/0x29 [nfsd] SS:ESP 0068:dd54dde0
      ---[ end trace 2b0bf6c6557cb284 ]---
      The trace route is:
       -> nfsd4_lock()
         -> if (lock->lk_is_new) {
           -> alloc_init_lock_stateid()
              3739: stp->st_access_bmap = 0;
         ->if (status && lock->lk_is_new && lock_sop)
           -> release_lockowner()
            -> free_generic_stateid()
             -> nfs4_access_bmap_to_omode()
                -> nfs4_access_to_omode()
              380: BUG();   *****
      This problem was introduced by 0997b173.
      Reported-by: default avatarMi Jinlong <mijinlong@cn.fujitsu.com>
      Tested-by: default avatarMi Jinlong <mijinlong@cn.fujitsu.com>
      Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
  4. 09 Apr, 2011 3 commits
  5. 08 Apr, 2011 18 commits
    • Linus Torvalds's avatar
      Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6 · 94c8a984
      Linus Torvalds authored
      * 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
        NFS: Change initial mount authflavor only when server returns NFS4ERR_WRONGSEC
        NFS: Fix a signed vs. unsigned secinfo bug
        Revert "net/sunrpc: Use static const char arrays"
    • Randy Dunlap's avatar
      signal.c: fix erroneous syscall kernel-doc · f9fa0bc1
      Randy Dunlap authored
      Fix erroneous syscall kernel-doc comments in kernel/signal.c.
      Reported-by: default avatarMatt Fleming <matt@console-pimps.org>
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 · bb3c90f0
      Linus Torvalds authored
      * 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
        [S390] compile fix for latest binutils
        [S390] cio: prevent purging of CCW devices in the online state
        [S390] qdio: fix init sequence
        [S390] Fix parameter passing for smp_switch_to_cpu()
        [S390] oprofile s390: prevent stack corruption
    • Linus Torvalds's avatar
      Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 · 3d762ca1
      Linus Torvalds authored
      * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
        quota: Don't write quota info in dquot_commit()
        ext3: Fix writepage credits computation for ordered mode
    • Christoph Hellwig's avatar
      xfs: use proper interfaces for on-stack plugging · a1b7ea5d
      Christoph Hellwig authored
      Add proper blk_start_plug/blk_finish_plug pairs for the two places where
      we issue buffer I/O, and remove the blk_flush_plug in xfs_buf_lock and
      xfs_buf_iowait, given that context switches already flush the per-process
      plugging lists.
      Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
      Signed-off-by: default avatarAlex Elder <aelder@sgi.com>
    • Christoph Hellwig's avatar
      xfs: fix xfs_debug warnings · 957935dc
      Christoph Hellwig authored
      For a CONFIG_XFS_DEBUG=n build gcc complains about statements with no
      effect in xfs_debug:
      fs/xfs/quota/xfs_qm_syscalls.c: In function 'xfs_qm_scall_trunc_qfiles':
      fs/xfs/quota/xfs_qm_syscalls.c:291:3: warning: statement with no effect
      The reason for that is that the various new xfs message functions have a
      return value which is never used, and in case of the non-debug build
      xfs_debug the macro evaluates to a plain 0 which produces the above
      warnings.  This can be fixed by turning xfs_debug into an inline function
      instead of a macro, but in addition to that I've also changed all the
      message helpers to return void as we never use their return values.
      Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
      Signed-off-by: default avatarAlex Elder <aelder@sgi.com>
    • Christoph Hellwig's avatar
      xfs: fix variable set but not used warnings · ecb697c1
      Christoph Hellwig authored
      GCC 4.6 now warnings about variables set but not used.  Fix the trivially
      fixable warnings of this sort.
      Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
      Signed-off-by: default avatarAlex Elder <aelder@sgi.com>
    • Yevgeny Petrilin's avatar
      mlx4_en: Restoring RX buffer pointer in case of failure · 60b1809f
      Yevgeny Petrilin authored
      If not done, second attempt to open the RX ring would cause memory corruption.
      Signed-off-by: default avatarYevgeny Petrilin <yevgenyp@mellanox.co.il>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Yevgeny Petrilin's avatar
      mlx4: Sensing link type at device initialization · ab6dc30d
      Yevgeny Petrilin authored
      When bringing the port up, performing a SENSE_PORT command
      To try and check to which physical link type (IB or Ethernet) the physical
      port is connected.
      In case there is no valid link partner, the port will come up as its
      supported default.
      Signed-off-by: default avatarYevgeny Petrilin <yevgenyp@mellanox.co.il>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Dave Chinner's avatar
      xfs: convert log tail checking to a warning · da8a1a4a
      Dave Chinner authored
      On the Power platform, the log tail debug checks fire excessively
      causing the system to panic early in testing. The debug checks are
      known to be racy, though on x86_64 there is no evidence that they
      trigger at all.
      We want to keep the checks active on debug systems to alert us to
      problems with log space accounting, but we need to reduce the impact
      of a racy check on testing on the Power platform.
      As a result, convert the ASSERT conditions to warnings, and
      allow them to fire only once per filesystem mount. This will prevent
      false positives from interfering with testing, whilst still
      providing us with the indication that they may be a problem with log
      space accounting should that occur.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarAlex Elder <aelder@sgi.com>
    • Dave Chinner's avatar
      xfs: catch bad block numbers freeing extents. · be65b18a
      Dave Chinner authored
      A fuzzed filesystem crashed a kernel when freeing an extent with a
      block number beyond the end of the filesystem. Convert all the debug
      asserts in xfs_free_extent() to active checks so that we catch bad
      extents and return that the filesytsem is corrupted rather than
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarAlex Elder <aelder@sgi.com>
    • Dave Chinner's avatar
      xfs: push the AIL from memory reclaim and periodic sync · fd074841
      Dave Chinner authored
      When we are short on memory, we want to expedite the cleaning of
      dirty objects.  Hence when we run short on memory, we need to kick
      the AIL flushing into action to clean as many dirty objects as
      quickly as possible.  To implement this, sample the lsn of the log
      item at the head of the AIL and use that as the push target for the
      AIL flush.
      Further, we keep items in the AIL that are dirty that are not
      tracked any other way, so we can get objects sitting in the AIL that
      don't get written back until the AIL is pushed. Hence to get the
      filesystem to the idle state, we might need to push the AIL to flush
      out any remaining dirty objects sitting in the AIL. This requires
      the same push mechanism as the reclaim push.
      This patch also renames xfs_trans_ail_tail() to xfs_ail_min_lsn() to
      match the new xfs_ail_max_lsn() function introduced in this patch.
      Similarly for xfs_trans_ail_push -> xfs_ail_push.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarAlex Elder <aelder@sgi.com>
    • Dave Chinner's avatar
      xfs: clean up code layout in xfs_trans_ail.c · cd4a3c50
      Dave Chinner authored
      This patch rearranges the location of functions in xfs_trans_ail.c
      to remove the need for forward declarations of those functions in
      preparation for adding new functions without the need for forward
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarAlex Elder <aelder@sgi.com>
    • Dave Chinner's avatar
      xfs: convert the xfsaild threads to a workqueue · 0bf6a5bd
      Dave Chinner authored
      Similar to the xfssyncd, the per-filesystem xfsaild threads can be
      converted to a global workqueue and run periodically by delayed
      works. This makes sense for the AIL pushing because it uses
      variable timeouts depending on the work that needs to be done.
      By removing the xfsaild, we simplify the AIL pushing code and
      remove the need to spread the code to implement the threading
      and pushing across multiple files.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarAlex Elder <aelder@sgi.com>
    • Dave Chinner's avatar
      xfs: introduce background inode reclaim work · a7b339f1
      Dave Chinner authored
      Background inode reclaim needs to run more frequently that the XFS
      syncd work is run as 30s is too long between optimal reclaim runs.
      Add a new periodic work item to the xfs syncd workqueue to run a
      fast, non-blocking inode reclaim scan.
      Background inode reclaim is kicked by the act of marking inodes for
      reclaim.  When an AG is first marked as having reclaimable inodes,
      the background reclaim work is kicked. It will continue to run
      periodically untill it detects that there are no more reclaimable
      inodes. It will be kicked again when the first inode is queued for
      To ensure shrinker based inode reclaim throttles to the inode
      cleaning and reclaim rate but still reclaim inodes efficiently, make it kick the
      background inode reclaim so that when we are low on memory we are
      trying to reclaim inodes as efficiently as possible. This kick shoul
      d not be necessary, but it will protect against failures to kick the
      background reclaim when inodes are first dirtied.
      To provide the rate throttling, make the shrinker pass do
      synchronous inode reclaim so that it blocks on inodes under IO. This
      means that the shrinker will reclaim inodes rather than just
      skipping over them, but it does not adversely affect the rate of
      reclaim because most dirty inodes are already under IO due to the
      background reclaim work the shrinker kicked.
      These two modifications solve one of the two OOM killer invocations
      Chris Mason reported recently when running a stress testing script.
      The particular workload trigger for the OOM killer invocation is
      where there are more threads than CPUs all unlinking files in an
      extremely memory constrained environment. Unlike other solutions,
      this one does not have a performance impact on performance when
      memory is not constrained or the number of concurrent threads
      operating is <= to the number of CPUs.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarAlex Elder <aelder@sgi.com>
    • Dave Chinner's avatar
      xfs: convert ENOSPC inode flushing to use new syncd workqueue · 89e4cb55
      Dave Chinner authored
      On of the problems with the current inode flush at ENOSPC is that we
      queue a flush per ENOSPC event, regardless of how many are already
      queued. Thi can result in    hundreds of queued flushes, most of
      which simply burn CPU scanned and do no real work. This simply slows
      down allocation at ENOSPC.
      We really only need one active flush at a time, and we can easily
      implement that via the new xfs_syncd_wq. All we need to do is queue
      a flush if one is not already active, then block waiting for the
      currently active flush to complete. The result is that we only ever
      have a single ENOSPC inode flush active at a time and this greatly
      reduces the overhead of ENOSPC processing.
      On my 2p test machine, this results in tests exercising ENOSPC
      conditions running significantly faster - 042 halves execution time,
      083 drops from 60s to 5s, etc - while not introducing test
      This allows us to remove the old xfssyncd threads and infrastructure
      as they are no longer used.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarAlex Elder <aelder@sgi.com>
    • Dave Chinner's avatar
      xfs: introduce a xfssyncd workqueue · c6d09b66
      Dave Chinner authored
      All of the work xfssyncd does is background functionality. There is
      no need for a thread per filesystem to do this work - it can al be
      managed by a global workqueue now they manage concurrency
      Introduce a new gglobal xfssyncd workqueue, and convert the periodic
      work to use this new functionality. To do this, use a delayed work
      construct to schedule the next running of the periodic sync work
      for the filesystem. When the sync work is complete, queue a new
      delayed work for the next running of the sync work.
      For laptop mode, we wait on completion for the sync works, so ensure
      that the sync work queuing interface can flush and wait for work to
      complete to enable the work queue infrastructure to replace the
      current sequence number and wakeup that is used.
      Because the sync work does non-trivial amounts of work, mark the
      new work queue as CPU intensive.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
      Reviewed-by: default avatarAlex Elder <aelder@sgi.com>
    • Dave Chinner's avatar
      xfs: fix extent format buffer allocation size · e828776a
      Dave Chinner authored
      When formatting an inode item, we have to allocate a separate buffer
      to hold extents when there are delayed allocation extents on the
      inode and it is in extent format. The allocation size is derived
      from the in-core data fork representation, which accounts for
      delayed allocation extents, while the on-disk representation does
      not contain any delalloc extents.
      As a result of this mismatch, the allocated buffer can be far larger
      than needed to hold the real extent list which, due to the fact the
      inode is in extent format, is limited to the size of the literal
      area of the inode. However, we can have thousands of delalloc
      extents, resulting in an allocation size orders of magnitude larger
      than is needed to hold all the real extents.
      Fix this by limiting the size of the buffer being allocated to the
      size of the literal area of the inodes in the filesystem (i.e. the
      maximum size an inode fork can grow to).
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarAlex Elder <aelder@sgi.com>
  6. 07 Apr, 2011 2 commits