1. 30 May, 2013 8 commits
    • Dave Chinner's avatar
      xfs: remote attribute allocation may be contiguous · 9531e2de
      Dave Chinner authored
      When CRCs are enabled, there may be multiple allocations made if the
      headers cause a length overflow. This, however, does not mean that
      the number of headers required increases, as the second and
      subsequent extents may be contiguous with the previous extent. Hence
      when we map the extents to write the attribute data, we may end up
      with less extents than allocations made. Hence the assertion that we
      consume the number of headers we calculated in the allocation loop
      is incorrect and needs to be removed.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBen Myers <bpm@sgi.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 90253cf1)
      9531e2de
    • Dave Chinner's avatar
      xfs: fix dir3 freespace block corruption · e400d27d
      Dave Chinner authored
      When the directory freespace index grows to a second block (2017
      4k data blocks in the directory), the initialisation of the second
      new block header goes wrong. The write verifier fires a corruption
      error indicating that the block number in the header is zero. This
      was being tripped by xfs/110.
      
      The problem is that the initialisation of the new block is done just
      fine in xfs_dir3_free_get_buf(), but the caller then users a dirv2
      structure to zero on-disk header fields that xfs_dir3_free_get_buf()
      has already zeroed. These lined up with the block number in the dir
      v3 header format.
      
      While looking at this, I noticed that the struct xfs_dir3_free_hdr()
      had 4 bytes of padding in it that wasn't defined as padding or being
      zeroed by the initialisation. Add a pad field declaration and fully
      zero the on disk and in-core headers in xfs_dir3_free_get_buf() so
      that this is never an issue in the future. Note that this doesn't
      change the on-disk layout, just makes the 32 bits of padding in the
      layout explicit.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBen Myers <bpm@sgi.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 5ae6e6a4)
      e400d27d
    • Dave Chinner's avatar
      xfs: disable swap extents ioctl on CRC enabled filesystems · 7c9950fd
      Dave Chinner authored
      Currently, swapping extents from one inode to another is a simple
      act of switching data and attribute forks from one inode to another.
      This, unfortunately in no longer so simple with CRC enabled
      filesystems as there is owner information embedded into the BMBT
      blocks that are swapped between inodes. Hence swapping the forks
      between inodes results in the inodes having mapping blocks that
      point to the wrong owner and hence are considered corrupt.
      
      To fix this we need an extent tree block or record based swap
      algorithm so that the BMBT block owner information can be updated
      atomically in the swap transaction. This is a significant piece of
      new work, so for the moment simply don't allow swap extent
      operations to succeed on CRC enabled filesystems.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBen Myers <bpm@sgi.com>
      Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 02f75405)
      7c9950fd
    • Dave Chinner's avatar
      xfs: add fsgeom flag for v5 superblock support. · e7927e87
      Dave Chinner authored
      Currently userspace has no way of determining that a filesystem is
      CRC enabled. Add a flag to the XFS_IOC_FSGEOMETRY ioctl output to
      indicate that the filesystem has v5 superblock support enabled.
      This will allow xfs_info to correctly report the state of the
      filesystem.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarEric Sandeen <sandeen@redhat.com>
      Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 74137fff)
      e7927e87
    • Dave Chinner's avatar
      xfs: fix incorrect remote symlink block count · 1de09d1a
      Dave Chinner authored
      When CRCs are enabled, the number of blocks needed to hold a remote
      symlink on a 1k block size filesystem may be 2 instead of 1. The
      transaction reservation for the allocated blocks was not taking this
      into account and only allocating one block. Hence when trying to
      read or invalidate such symlinks, we are mapping a hole where there
      should be a block and things go bad at that point.
      
      Fix the reservation to use the correct block count, clean up the
      block count calculation similar to the remote attribute calculation,
      and add a debug guard to detect when we don't write the entire
      symlink to disk.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBen Myers <bpm@sgi.com>
      Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 321a9583)
      1de09d1a
    • Dave Chinner's avatar
      xfs: fix split buffer vector log recovery support · 7d2ffe80
      Dave Chinner authored
      A long time ago in a galaxy far away....
      
      .. the was a commit made to fix some ilinux specific "fragmented
      buffer" log recovery problem:
      
      http://oss.sgi.com/cgi-bin/gitweb.cgi?p=archive/xfs-import.git;a=commitdiff;h=b29c0bece51da72fb3ff3b61391a391ea54e1603
      
      That problem occurred when a contiguous dirty region of a buffer was
      split across across two pages of an unmapped buffer. It's been a
      long time since that has been done in XFS, and the changes to log
      the entire inode buffers for CRC enabled filesystems has
      re-introduced that corner case.
      
      And, of course, it turns out that the above commit didn't actually
      fix anything - it just ensured that log recovery is guaranteed to
      fail when this situation occurs. And now for the gory details.
      
      xfstest xfs/085 is failing with this assert:
      
      XFS (vdb): bad number of regions (0) in inode log format
      XFS: Assertion failed: 0, file: fs/xfs/xfs_log_recover.c, line: 1583
      
      Largely undocumented factoid #1: Log recovery depends on all log
      buffer format items starting with this format:
      
      struct foo_log_format {
      	__uint16_t	type;
      	__uint16_t	size;
      	....
      
      As recoery uses the size field and assumptions about 32 bit
      alignment in decoding format items.  So don't pay much attention to
      the fact log recovery thinks that it decoding an inode log format
      item - it just uses them to determine what the size of the item is.
      
      But why would it see a log format item with a zero size? Well,
      luckily enough xfs_logprint uses the same code and gives the same
      error, so with a bit of gdb magic, it turns out that it isn't a log
      format that is being decoded. What logprint tells us is this:
      
      Oper (130): tid: a0375e1a  len: 28  clientid: TRANS  flags: none
      BUF:  #regs: 2   start blkno: 144 (0x90)  len: 16  bmap size: 2  flags: 0x4000
      Oper (131): tid: a0375e1a  len: 4096  clientid: TRANS  flags: none
      BUF DATA
      ----------------------------------------------------------------------------
      Oper (132): tid: a0375e1a  len: 4096  clientid: TRANS  flags: none
      xfs_logprint: unknown log operation type (4e49)
      **********************************************************************
      * ERROR: data block=2                                                 *
      **********************************************************************
      
      That we've got a buffer format item (oper 130) that has two regions;
      the format item itself and one dirty region. The subsequent region
      after the buffer format item and it's data is them what we are
      tripping over, and the first bytes of it at an inode magic number.
      Not a log opheader like there is supposed to be.
      
      That means there's a problem with the buffer format item. It's dirty
      data region is 4096 bytes, and it contains - you guessed it -
      initialised inodes. But inode buffers are 8k, not 4k, and we log
      them in their entirety. So something is wrong here. The buffer
      format item contains:
      
      (gdb) p /x *(struct xfs_buf_log_format *)in_f
      $22 = {blf_type = 0x123c, blf_size = 0x2, blf_flags = 0x4000,
             blf_len = 0x10, blf_blkno = 0x90, blf_map_size = 0x2,
             blf_data_map = {0xffffffff, 0xffffffff, .... }}
      
      Two regions, and a signle dirty contiguous region of 64 bits.  64 *
      128 = 8k, so this should be followed by a single 8k region of data.
      And the blf_flags tell us that the type of buffer is a
      XFS_BLFT_DINO_BUF. It contains inodes. And because it doesn't have
      the XFS_BLF_INODE_BUF flag set, that means it's an inode allocation
      buffer. So, it should be followed by 8k of inode data.
      
      But we know that the next region has a header of:
      
      (gdb) p /x *ohead
      $25 = {oh_tid = 0x1a5e37a0, oh_len = 0x100000, oh_clientid = 0x69,
             oh_flags = 0x0, oh_res2 = 0x0}
      
      and so be32_to_cpu(oh_len) = 0x1000 = 4096 bytes. It's simply not
      long enough to hold all the logged data. There must be another
      region. There is - there's a following opheader for another 4k of
      data that contains the other half of the inode cluster data - the
      one we assert fail on because it's not a log format header.
      
      So why is the second part of the data not being accounted to the
      correct buffer log format structure? It took a little more work with
      gdb to work out that the buffer log format structure was both
      expecting it to be there but hadn't accounted for it. It was at that
      point I went to the kernel code, as clearly this wasn't a bug in
      xfs_logprint and the kernel was writing bad stuff to the log.
      
      First port of call was the buffer item formatting code, and the
      discontiguous memory/contiguous dirty region handling code
      immediately stood out. I've wondered for a long time why the code
      had this comment in it:
      
                              vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
                              vecp->i_len = nbits * XFS_BLF_CHUNK;
                              vecp->i_type = XLOG_REG_TYPE_BCHUNK;
      /*
       * You would think we need to bump the nvecs here too, but we do not
       * this number is used by recovery, and it gets confused by the boundary
       * split here
       *                      nvecs++;
       */
                              vecp++;
      
      And it didn't account for the extra vector pointer. The case being
      handled here is that a contiguous dirty region lies across a
      boundary that cannot be memcpy()d across, and so has to be split
      into two separate operations for xlog_write() to perform.
      
      What this code assumes is that what is written to the log is two
      consecutive blocks of data that are accounted in the buf log format
      item as the same contiguous dirty region and so will get decoded as
      such by the log recovery code.
      
      The thing is, xlog_write() knows nothing about this, and so just
      does it's normal thing of adding an opheader for each vector. That
      means the 8k region gets written to the log as two separate regions
      of 4k each, but because nvecs has not been incremented, the buf log
      format item accounts for only one of them.
      
      Hence when we come to log recovery, we process the first 4k region
      and then expect to come across a new item that starts with a log
      format structure of some kind that tells us whenteh next data is
      going to be. Instead, we hit raw buffer data and things go bad real
      quick.
      
      So, the commit from 2002 that commented out nvecs++ is just plain
      wrong. It breaks log recovery completely, and it would seem the only
      reason this hasn't been since then is that we don't log large
      contigous regions of multi-page unmapped buffers very often. Never
      would be a closer estimate, at least until the CRC code came along....
      
      So, lets fix that by restoring the nvecs accounting for the extra
      region when we hit this case.....
      
      .... and there's the problemin log recovery it is apparently working
      around:
      
      XFS: Assertion failed: i == item->ri_total, file: fs/xfs/xfs_log_recover.c, line: 2135
      
      Yup, xlog_recover_do_reg_buffer() doesn't handle contigous dirty
      regions being broken up into multiple regions by the log formatting
      code. That's an easy fix, though - if the number of contiguous dirty
      bits exceeds the length of the region being copied out of the log,
      only account for the number of dirty bits that region covers, and
      then loop again and copy more from the next region. It's a 2 line
      fix.
      
      Now xfstests xfs/085 passes, we have one less piece of mystery
      code, and one more important piece of knowledge about how to
      structure new log format items..
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarMark Tinguely <tinguely@sgi.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 709da6a6)
      7d2ffe80
    • Dave Chinner's avatar
      xfs: kill suid/sgid through the truncate path. · 2962f5a5
      Dave Chinner authored
      XFS has failed to kill suid/sgid bits correctly when truncating
      files of non-zero size since commit c4ed4243 ("xfs: split
      xfs_setattr") introduced in the 3.1 kernel. Fix it.
      
      Fix it.
      
      cc: stable kernel <stable@vger.kernel.org>
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 56c19e89)
      2962f5a5
    • Dave Chinner's avatar
      xfs: avoid nesting transactions in xfs_qm_scall_setqlim() · 08fb3905
      Dave Chinner authored
      Lockdep reports:
      
      =============================================
      [ INFO: possible recursive locking detected ]
      3.9.0+ #3 Not tainted
      ---------------------------------------------
      setquota/28368 is trying to acquire lock:
       (sb_internal){++++.?}, at: [<c11e8846>] xfs_trans_alloc+0x26/0x50
      
      but task is already holding lock:
       (sb_internal){++++.?}, at: [<c11e8846>] xfs_trans_alloc+0x26/0x50
      
      from xfs_qm_scall_setqlim()->xfs_dqread() when a dquot needs to be
      allocated.
      
      xfs_qm_scall_setqlim() is starting a transaction and then not
      passing it into xfs_qm_dqet() and so it starts it's own transaction
      when allocating the dquot.  Splat!
      
      Fix this by not allocating the dquot in xfs_qm_scall_setqlim()
      inside the setqlim transaction. This requires getting the dquot
      first (and allocating it if necessary) then dropping and relocking
      the dquot before joining it to the setqlim transaction.
      Reported-by: default avatarMichael L. Semon <mlsemon35@gmail.com>
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBen Myers <bpm@sgi.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      (cherry picked from commit f648167f)
      08fb3905
  2. 24 May, 2013 7 commits
    • Dave Chinner's avatar
      xfs: remote attribute lookups require the value length · 7ae07780
      Dave Chinner authored
      When reading a remote attribute, to correctly calculate the length
      of the data buffer for CRC enable filesystems, we need to know the
      length of the attribute data. We get this information when we look
      up the attribute, but we don't store it in the args structure along
      with the other remote attr information we get from the lookup. Add
      this information to the args structure so we can use it
      appropriately.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBen Myers <bpm@sgi.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit e461fcb1)
      7ae07780
    • Dave Chinner's avatar
      xfs: xfs_attr_shortform_allfit() does not handle attr3 format. · cf257abf
      Dave Chinner authored
      xfstests generic/117 fails with:
      
      XFS: Assertion failed: leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC)
      
      indicating a function that does not handle the attr3 format
      correctly. Fix it.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBen Myers <bpm@sgi.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      (cherry picked from commit b38958d7)
      cf257abf
    • Dave Chinner's avatar
      xfs: xfs_da3_node_read_verify() doesn't handle XFS_ATTR3_LEAF_MAGIC · 7ced60ca
      Dave Chinner authored
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBen Myers <bpm@sgi.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 72916fb8)
      7ced60ca
    • Dave Chinner's avatar
      xfs: fix missing KM_NOFS tags to keep lockdep happy · b17cb364
      Dave Chinner authored
      There are several places where we use KM_SLEEP allocation contexts
      and use the fact that they are called from transaction context to
      add KM_NOFS where appropriate. Unfortunately, there are several
      places where the code makes this assumption but can be called from
      outside transaction context but with filesystem locks held. These
      places need explicit KM_NOFS annotations to avoid lockdep
      complaining about reclaim contexts.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBen Myers <bpm@sgi.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit ac14876c)
      b17cb364
    • Dave Chinner's avatar
      xfs: Don't reference the EFI after it is freed · 509e708a
      Dave Chinner authored
      Checking the EFI for whether it is being released from recovery
      after we've already released the known active reference is a mistake
      worthy of a brown paper bag. Fix the (now) obvious use after free
      that it can cause.
      Reported-by: default avatarDave Jones <davej@redhat.com>
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 52c24ad3)
      509e708a
    • Dave Chinner's avatar
      xfs: fix rounding in xfs_free_file_space · 7031d0e1
      Dave Chinner authored
      The offset passed into xfs_free_file_space() needs to be rounded
      down to a certain size, but the rounding mask is built by a 32 bit
      variable. Hence the mask will always mask off the upper 32 bits of
      the offset and lead to incorrect writeback and invalidation ranges.
      
      This is not actually exposed as a bug because we writeback and
      invalidate from the rounded offset to the end of the file, and hence
      the offset we are actually punching a hole out of will always be
      covered by the code. This needs fixing, however, if we ever want to
      use exact ranges for writeback/invalidation here...
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 28ca489c)
      7031d0e1
    • Dave Chinner's avatar
      xfs: fix sub-page blocksize data integrity writes · 480d7467
      Dave Chinner authored
      FSX on 512 byte block size filesystems has been failing for some
      time with corrupted data. The fault dates back to the change in
      the writeback data integrity algorithm that uses a mark-and-sweep
      approach to avoid data writeback livelocks.
      
      Unfortunately, a side effect of this mark-and-sweep approach is that
      each page will only be written once for a data integrity sync, and
      there is a condition in writeback in XFS where a page may require
      two writeback attempts to be fully written. As a result of the high
      level change, we now only get a partial page writeback during the
      integrity sync because the first pass through writeback clears the
      mark left on the page index to tell writeback that the page needs
      writeback....
      
      The cause is writing a partial page in the clustering code. This can
      happen when a mapping boundary falls in the middle of a page - we
      end up writing back the first part of the page that the mapping
      covers, but then never revisit the page to have the remainder mapped
      and written.
      
      The fix is simple - if the mapping boundary falls inside a page,
      then simple abort clustering without touching the page. This means
      that the next ->writepage entry that write_cache_pages() will make
      is the page we aborted on, and xfs_vm_writepage() will map all
      sections of the page correctly. This behaviour is also optimal for
      non-data integrity writes, as it results in contiguous sequential
      writeback of the file rather than missing small holes and having to
      write them a "random" writes in a future pass.
      
      With this fix, all the fsx tests in xfstests now pass on a 512 byte
      block size filesystem on a 4k page machine.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
      Signed-off-by: default avatarBen Myers <bpm@sgi.com>
      
      (cherry picked from commit 49b137cb)
      480d7467
  3. 12 May, 2013 2 commits
    • Linus Torvalds's avatar
      Linux 3.10-rc1 · f722406f
      Linus Torvalds authored
      f722406f
    • Linus Torvalds's avatar
      Merge tag 'trace-fixes-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 26b840ae
      Linus Torvalds authored
      Pull tracing/kprobes update from Steven Rostedt:
       "The majority of these changes are from Masami Hiramatsu bringing
        kprobes up to par with the latest changes to ftrace (multi buffering
        and the new function probes).
      
        He also discovered and fixed some bugs in doing so.  When pulling in
        his patches, I also found a few minor bugs as well and fixed them.
      
        This also includes a compile fix for some archs that select the ring
        buffer but not tracing.
      
        I based this off of the last patch you took from me that fixed the
        merge conflict error, as that was the commit that had all the changes
        I needed for this set of changes."
      
      * tag 'trace-fixes-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        tracing/kprobes: Support soft-mode disabling
        tracing/kprobes: Support ftrace_event_file base multibuffer
        tracing/kprobes: Pass trace_probe directly from dispatcher
        tracing/kprobes: Increment probe hit-count even if it is used by perf
        tracing/kprobes: Use bool for retprobe checker
        ftrace: Fix function probe when more than one probe is added
        ftrace: Fix the output of enabled_functions debug file
        ftrace: Fix locking in register_ftrace_function_probe()
        tracing: Add helper function trace_create_new_event() to remove duplicate code
        tracing: Modify soft-mode only if there's no other referrer
        tracing: Indicate enabled soft-mode in enable file
        tracing/kprobes: Fix to increment return event probe hit-count
        ftrace: Cleanup regex_lock and ftrace_lock around hash updating
        ftrace, kprobes: Fix a deadlock on ftrace_regex_lock
        ftrace: Have ftrace_regex_write() return either read or error
        tracing: Return error if register_ftrace_function_probe() fails for event_enable_func()
        tracing: Don't succeed if event_enable_func did not register anything
        ring-buffer: Select IRQ_WORK
      26b840ae
  4. 11 May, 2013 4 commits
    • Linus Torvalds's avatar
      Merge tag 'stable/for-linus-3.10-rc0-tag-two' of... · 607eeb0b
      Linus Torvalds authored
      Merge tag 'stable/for-linus-3.10-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
      
      Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
       - More fixes in the vCPU PVHVM hotplug path.
       - Add more documentation.
       - Fix various ARM related issues in the Xen generic drivers.
       - Updates in the xen-pciback driver per Bjorn's updates.
       - Mask the x2APIC feature for PV guests.
      
      * tag 'stable/for-linus-3.10-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
        xen/pci: Used cached MSI-X capability offset
        xen/pci: Use PCI_MSIX_TABLE_BIR, not PCI_MSIX_FLAGS_BIRMASK
        xen: clear IRQ_NOAUTOEN and IRQ_NOREQUEST
        xen: mask x2APIC feature in PV
        xen: SWIOTLB is only used on x86
        xen/spinlock: Fix check from greater than to be also be greater or equal to.
        xen/smp/pvhvm: Don't point per_cpu(xen_vpcu, 33 and larger) to shared_info
        xen/vcpu: Document the xen_vcpu_info and xen_vcpu
        xen/vcpu/pvhvm: Fix vcpu hotplugging hanging.
      607eeb0b
    • Linus Torvalds's avatar
      Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 4c444501
      Linus Torvalds authored
      Pull second SCSI update from James "Jaj B" Bottomley:
       "This is the final round of SCSI patches for the merge window.  It
        consists mostly of driver updates (bnx2fc, ibmfc, fnic, lpfc,
        be2iscsi, pm80xx, qla4x and ipr).
      
        There's also the power management updates that complete the patches in
        Jens' tree, an iscsi refcounting problem fix from the last pull, some
        dif handling in scsi_debug fixes, a few nice code cleanups and an
        error handling busy bug fix."
      
      * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (92 commits)
        [SCSI] qla2xxx: Update firmware link in Kconfig file.
        [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used
        [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type
        [SCSI] pm80xx: thermal, sas controller config and error handling update
        [SCSI] pm80xx: NCQ error handling changes
        [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers
        [SCSI] pm80xx: Changed module name and debug messages update
        [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it
        [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone
        [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files
        [SCSI] pm80xx: MSI-X implementation for using 64 interrupts
        [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve
        [SCSI] pm80xx: Multiple inbound/outbound queue configuration
        [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC
        [SCSI] lpfc: fix up Kconfig dependencies
        [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd
        [SCSI] sd: change to auto suspend mode
        [SCSI] sd: use REQ_PM in sd's runtime suspend operation
        [SCSI] qla4xxx: Fix iocb_cnt calculation in qla4xxx_send_mbox_iocb()
        [SCSI] ufs: Correct the expected data transfersize
        ...
      4c444501
    • Linus Torvalds's avatar
      Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux · ac4e0109
      Linus Torvalds authored
      Pull idle update from Len Brown:
       "Add support for new Haswell-ULT CPU idle power states"
      
      * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
        intel_idle: initial C8, C9, C10 support
        tools/power turbostat: display C8, C9, C10 residency
      ac4e0109
    • Linus Torvalds's avatar
      Merge git://git.infradead.org/users/eparis/audit · c4cc75c3
      Linus Torvalds authored
      Pull audit changes from Eric Paris:
       "Al used to send pull requests every couple of years but he told me to
        just start pushing them to you directly.
      
        Our touching outside of core audit code is pretty straight forward.  A
        couple of interface changes which hit net/.  A simple argument bug
        calling audit functions in namei.c and the removal of some assembly
        branch prediction code on ppc"
      
      * git://git.infradead.org/users/eparis/audit: (31 commits)
        audit: fix message spacing printing auid
        Revert "audit: move kaudit thread start from auditd registration to kaudit init"
        audit: vfs: fix audit_inode call in O_CREAT case of do_last
        audit: Make testing for a valid loginuid explicit.
        audit: fix event coverage of AUDIT_ANOM_LINK
        audit: use spin_lock in audit_receive_msg to process tty logging
        audit: do not needlessly take a lock in tty_audit_exit
        audit: do not needlessly take a spinlock in copy_signal
        audit: add an option to control logging of passwords with pam_tty_audit
        audit: use spin_lock_irqsave/restore in audit tty code
        helper for some session id stuff
        audit: use a consistent audit helper to log lsm information
        audit: push loginuid and sessionid processing down
        audit: stop pushing loginid, uid, sessionid as arguments
        audit: remove the old depricated kernel interface
        audit: make validity checking generic
        audit: allow checking the type of audit message in the user filter
        audit: fix build break when AUDIT_DEBUG == 2
        audit: remove duplicate export of audit_enabled
        Audit: do not print error when LSMs disabled
        ...
      c4cc75c3
  5. 10 May, 2013 19 commits