1. 01 May, 2011 2 commits
  2. 30 Apr, 2011 2 commits
    • Theodore Ts'o's avatar
      ext4: ignore errors when issuing discards · d9f34504
      Theodore Ts'o authored
      This is an effective revert of commit a30eec2a: "ext4: stop issuing
      discards if not supported by device".  The problem is that there are
      some devices that may return errors in response to a discard request
      some times but not others.  (One example would be a hybrid dm device
      which concatenates an SSD and an HDD device).
      
      By this logic, I also removed the error checking from ext4's FITRIM
      code; so that an error from a discard will not stop the FITRIM from
      trying to trim the rest of the file system.
      Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
      d9f34504
    • Curt Wohlgemuth's avatar
      ext4: don't set PageUptodate in ext4_end_bio() · 39db00f1
      Curt Wohlgemuth authored
      In the bio completion routine, we should not be setting
      PageUptodate at all -- it's set at sys_write() time, and is
      unaffected by success/failure of the write to disk.
      
      This can cause a page corruption bug when the file system's
      block size is less than the architecture's VM page size.
      
      if we have only written a single block -- we might end up
      setting the page's PageUptodate flag, indicating that page
      is completely read into memory, which may not be true.
      This could cause subsequent reads to get bad data.
      
      This commit also takes the opportunity to clean up error
      handling in ext4_end_bio(), and remove some extraneous code:
      
         - fixes ext4_end_bio() to set AS_EIO in the
           page->mapping->flags on error, which was left out by
           mistake.  This is needed so that fsync() will
           return an error if there was an I/O error.
         - remove the clear_buffer_dirty() call on unmapped
           buffers for each page.
         - consolidate page/buffer error handling in a single
           section.
      Signed-off-by: default avatarCurt Wohlgemuth <curtw@google.com>
      Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
      Reported-by: default avatarJim Meyering <jim@meyering.net>
      Reported-by: default avatarHugh Dickins <hughd@google.com>
      Cc: Mingming Cao <cmm@us.ibm.com>
      39db00f1
  3. 18 Apr, 2011 1 commit
    • Theodore Ts'o's avatar
      ext4: check for ext[23] file system features when mounting as ext[23] · 2035e776
      Theodore Ts'o authored
      Provide better emulation for ext[23] mode by enforcing that the file
      system does not have any unsupported file system features as defined
      by ext[23] when emulating the ext[23] file system driver when
      CONFIG_EXT4_USE_FOR_EXT23 is defined.
      
      This causes the file system type information in /proc/mounts to be
      correct for the automatically mounted root file system.  This also
      means that "mount -t ext2 /dev/sda /mnt" will fail if /dev/sda
      contains an ext3 or ext4 file system, just as one would expect if the
      original ext2 file system driver were in use.
      Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
      2035e776
  4. 16 Apr, 2011 1 commit
  5. 12 Apr, 2011 1 commit
  6. 11 Apr, 2011 13 commits
  7. 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
      4263a2f1
    • 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
      free_generic_stateid.
      
      ------------[ 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)
      Stack:
       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>
      23fcf2ec
  8. 09 Apr, 2011 3 commits
  9. 08 Apr, 2011 15 commits