1. 30 May, 2013 2 commits
    • 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 25 commits