1. 23 11月, 2011 4 次提交
  2. 22 11月, 2011 11 次提交
  3. 21 11月, 2011 5 次提交
    • D
      VFS: Log the fact that we've given ELOOP rather than creating a loop · dd179946
      David Howells 提交于
      To prevent an NFS server from being used to create a directory loop in an NFS
      superblock on the client, the following patch was committed:
      
      	commit 18367501
      	Author: Al Viro <viro@zeniv.linux.org.uk>
      	Date:   Tue Jul 12 21:42:24 2011 -0400
      	Subject: fix loop checks in d_materialise_unique()
      
      This causes ELOOP to be reported to anyone trying to access the dentry that
      would otherwise cause the kernel to complete the loop.
      
      However, no indication is given to the caller as to why an operation that ought
      to work doesn't.  The fault is with the kernel, which doesn't want to try and
      solve the problem as it gets horrendously messy if there's another mountpoint
      somewhere in the trees being spliced that can't be moved[*].
      
      [*] The real problem is that we don't handle the excision of a subtree that
      gets moved _out_ of what we can see.  This can happen on the server where a
      directory is merely moved between two other dirs on the same filesystem, but
      where destination dir is not accessible by the client.
      
      So, given the choice to return ELOOP rather than trying to reconfigure the
      dentry tree, we should give the caller some indication of why they aren't being
      allowed to make what should be a legitimate request and log a message.
      Signed-off-by: NDavid Howells <dhowells@redhat.com>
      Acked-by: NSachin Prabhu <sprabhu@redhat.com>
      Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      dd179946
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 6fe4c6d4
      Linus Torvalds 提交于
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (86 commits)
        ipv4: fix redirect handling
        ping: dont increment ICMP_MIB_INERRORS
        sky2: fix hang in napi_disable
        sky2: enforce minimum ring size
        bonding: Don't allow mode change via sysfs with slaves present
        f_phonet: fix page offset of first received fragment
        stmmac: fix pm functions avoiding sleep on spinlock
        stmmac: remove spin_lock in stmmac_ioctl.
        stmmac: parameters auto-tuning through HW cap reg
        stmmac: fix advertising 1000Base capabilties for non GMII iface
        stmmac: use mdelay on timeout of sw reset
        sky2: version 1.30
        sky2: used fixed RSS key
        sky2: reduce default Tx ring size
        sky2: rename up/down functions
        sky2: pci posting issues
        sky2: fix hang on shutdown (and other irq issues)
        r6040: fix check against MCRO_HASHEN bit in r6040_multicast_list
        MAINTAINERS: change email address for shemminger
        pch_gbe: Move #include of module.h
        ...
      6fe4c6d4
    • L
      Merge branch 'kvm-updates/3.2' of git://git.kernel.org/pub/scm/virt/kvm/kvm · a4cc3889
      Linus Torvalds 提交于
      * 'kvm-updates/3.2' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        KVM guest: prevent tracing recursion with kvmclock
        Revert "KVM: PPC: Add support for explicit HIOR setting"
        KVM: VMX: Check for automatic switch msr table overflow
        KVM: VMX: Add support for guest/host-only profiling
        KVM: VMX: add support for switching of PERF_GLOBAL_CTRL
        KVM: s390: announce SYNC_MMU
        KVM: s390: Fix tprot locking
        KVM: s390: handle SIGP sense running intercepts
        KVM: s390: Fix RUNNING flag misinterpretation
      a4cc3889
    • L
      Merge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm · bb893d15
      Linus Torvalds 提交于
      * 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
        ARM: wire up process_vm_writev and process_vm_readv syscalls
        ARM: 7160/1: setup: avoid overflowing {elf,arch}_name from proc_info_list
        ARM: 7158/1: add new MFP implement for NUC900
        ARM: 7157/1: fix a building WARNING for nuc900
        ARM: 7156/1: l2x0: fix compile error on !CONFIG_USE_OF
        ARM: 7155/1: arch.h: Declare 'pt_regs' locally
        ARM: 7154/1: mach-bcmring: fix build error in dma.c
        ARM: 7153/1: mach-bcmring: fix build error in core.c
        ARM: 7152/1: distclean: Remove generated .dtb files
        ARM: 7150/1: Allow kernel unaligned accesses on ARMv6+ processors
        ARM: 7149/1: spi/pl022: Enable clock in probe
        Revert "ARM: 7098/1: kdump: copy kernel relocation code at the kexec prepare stage"
      bb893d15
    • L
      Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 2d360fcb
      Linus Torvalds 提交于
      * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PM / Suspend: Fix bug in suspend statistics update
        PM / Hibernate: Fix the early termination of test modes
        PM / shmobile: Fix build of sh7372_pm_init() for CONFIG_PM unset
        PM Sleep: Do not extend wakeup paths to devices with ignore_children set
        PM / driver core: disable device's runtime PM during shutdown
        PM / devfreq: correct Kconfig dependency
        PM / devfreq: fix use after free in devfreq_remove_device
        PM / shmobile: Avoid restoring the INTCS state during initialization
        PM / devfreq: Remove compiler error after irq.h update
        PM / QoS: Properly use the WARN() macro in dev_pm_qos_add_request()
        PM / Clocks: Only disable enabled clocks in pm_clk_suspend()
        ARM: mach-shmobile: sh7372 A3SP no_suspend_console fix
        PM / shmobile: Don't skip debugging output in pd_power_up()
      2d360fcb
  4. 20 11月, 2011 14 次提交
    • J
      Btrfs: sectorsize align offsets in fiemap · 4d479cf0
      Josef Bacik 提交于
      We've been hitting BUG()'s in btrfs_cont_expand and btrfs_fallocate and anywhere
      else that calls btrfs_get_extent while running xfstests 13 in a loop.  This is
      because fiemap is calling btrfs_get_extent with non-sectorsize aligned offsets,
      which will end up adding mappings that are not sectorsize aligned, which will
      cause problems in some cases for subsequent calls to btrfs_get_extent for
      similar areas that are sectorsize aligned.  With this patch I ran xfstests 13 in
      a loop for a couple of hours and didn't hit the problem that I could previously
      hit in at most 20 minutes.  Thanks,
      Signed-off-by: NJosef Bacik <josef@redhat.com>
      4d479cf0
    • J
      Btrfs: clear pages dirty for io and set them extent mapped · f7d61dcd
      Josef Bacik 提交于
      When doing the io_ctl helpers to clean up the free space cache stuff I stopped
      using our normal prepare_pages stuff, which means I of course forgot to do
      things like set the pages extent mapped, which will cause us all sorts of
      wonderful propblems.  Thanks,
      Signed-off-by: NJosef Bacik <josef@redhat.com>
      f7d61dcd
    • J
      Btrfs: wait on caching if we're loading the free space cache · 291c7d2f
      Josef Bacik 提交于
      We've been hitting panics when running xfstest 13 in a loop for long periods of
      time.  And actually this problem has always existed so we've been hitting these
      things randomly for a while.  Basically what happens is we get a thread coming
      into the allocator and reading the space cache off of disk and adding the
      entries to the free space cache as we go.  Then we get another thread that comes
      in and tries to allocate from that block group.  Since block_group->cached !=
      BTRFS_CACHE_NO it goes ahead and tries to do the allocation.  We do this because
      if we're doing the old slow way of caching we don't want to hold people up and
      wait for everything to finish.  The problem with this is we could end up
      discarding the space cache at some arbitrary point in the future, which means we
      could very well end up allocating space that is either bad, or when the real
      caching happens it could end up thinking the space isn't in use when it really
      is and cause all sorts of other problems.
      
      The solution is to add a new flag to indicate we are loading the free space
      cache from disk, and always try to cache the block group if cache->cached !=
      BTRFS_CACHE_FINISHED.  That way if we are loading the space cache anybody else
      who tries to allocate from the block group will have to wait until it's finished
      to make sure it completes successfully.  Thanks,
      Signed-off-by: NJosef Bacik <josef@redhat.com>
      291c7d2f
    • A
      Btrfs: prefix resize related printks with btrfs: · 5bb14682
      Arnd Hannemann 提交于
      For the user it is confusing to find something like:
      [10197.627710] new size for /dev/mapper/vg0-usr_share is 3221225472
      in kernel log, because it doesn't point directly to btrfs.
      
      This patch prefixes those messages with "btrfs:" like other btrfs
      related printks.
      Signed-off-by: NArnd Hannemann <arnd@arndnet.de>
      Signed-off-by: NChris Mason <chris.mason@oracle.com>
      5bb14682
    • D
      btrfs: fix stat blocks accounting · fadc0d8b
      David Sterba 提交于
      Round inode bytes and delalloc bytes up to real blocksize before
      converting to sector size. Otherwise eg. files smaller than 512
      are reported with zero blocks due to incorrect rounding.
      Signed-off-by: NDavid Sterba <dsterba@suse.cz>
      Signed-off-by: NChris Mason <chris.mason@oracle.com>
      fadc0d8b
    • L
      Btrfs: avoid unnecessary bitmap search for cluster setup · 52621cb6
      Li Zefan 提交于
      setup_cluster_no_bitmap() searches all the extents and bitmaps starting
      from offset. Therefore if it returns -ENOSPC, all the bitmaps starting
      from offset are in the bitmaps list, so it's sufficient to search from
      this list in setup_cluser_bitmap().
      Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com>
      Signed-off-by: NChris Mason <chris.mason@oracle.com>
      52621cb6
    • L
      Btrfs: fix to search one more bitmap for cluster setup · 0f0fbf1d
      Li Zefan 提交于
      Suppose there are two bitmaps [0, 256], [256, 512] and one extent
      [100, 120] in the free space cache, and we want to setup a cluster
      with offset=100, bytes=50.
      
      In this case, there will be only one bitmap [256, 512] in the temporary
      bitmaps list, and then setup_cluster_bitmap() won't search bitmap [0, 256].
      
      The cause is, the list is constructed in setup_cluster_no_bitmap(),
      and only bitmaps with bitmap_entry->offset >= offset will be added
      into the list, and the very bitmap that convers offset has
      bitmap_entry->offset <= offset.
      Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com>
      Signed-off-by: NChris Mason <chris.mason@oracle.com>
      0f0fbf1d
    • J
      btrfs: mirror_num should be int, not u64 · 32240a91
      Jan Schmidt 提交于
      My previous patch introduced some u64 for failed_mirror variables, this one
      makes it consistent again.
      Signed-off-by: NJan Schmidt <list.btrfs@jan-o-sch.net>
      Signed-off-by: NChris Mason <chris.mason@oracle.com>
      32240a91
    • J
      btrfs: Fix up 32/64-bit compatibility for new ioctls · 745c4d8e
      Jeff Mahoney 提交于
       This patch casts to unsigned long before casting to a pointer and fixes
       the following warnings:
      fs/btrfs/extent_io.c:2289:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      fs/btrfs/ioctl.c:2933:37: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      fs/btrfs/ioctl.c:2937:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
      fs/btrfs/ioctl.c:3020:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
      fs/btrfs/scrub.c:275:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
      fs/btrfs/backref.c:686:27: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      Signed-off-by: NJeff Mahoney <jeffm@suse.com>
      Signed-off-by: NChris Mason <chris.mason@oracle.com>
      745c4d8e
    • C
      Btrfs: fix barrier flushes · 387125fc
      Chris Mason 提交于
      When btrfs is writing the super blocks, it send barrier flushes to make
      sure writeback caching drives get all the metadata on disk in the
      right order.
      
      But, we have two bugs in the way these are sent down.  When doing
      full commits (not via the tree log), we are sending the barrier down
      before the last super when it should be going down before the first.
      
      In multi-device setups, we should be waiting for the barriers to
      complete on all devices before writing any of the supers.
      
      Both of these bugs can cause corruptions on power failures.  We fix it
      with some new code to send down empty barriers to all devices before
      writing the first super.
      
      Alexandre Oliva found the multi-device bug.  Arne Jansen did the async
      barrier loop.
      Signed-off-by: NChris Mason <chris.mason@oracle.com>
      Reported-by: NAlexandre Oliva <oliva@lsd.ic.unicamp.br>
      387125fc
    • A
      KVM guest: prevent tracing recursion with kvmclock · 95ef1e52
      Avi Kivity 提交于
      Prevent tracing of preempt_disable() in get_cpu_var() in
      kvm_clock_read(). When CONFIG_DEBUG_PREEMPT is enabled,
      preempt_disable/enable() are traced and this causes the function_graph
      tracer to go into an infinite recursion. By open coding the
      preempt_disable() around the get_cpu_var(), we can use the notrace
      version which prevents preempt_disable/enable() from being traced and
      prevents the recursion.
      
      Based on a similar patch for Xen from Jeremy Fitzhardinge.
      Tested-by: NGleb Natapov <gleb@redhat.com>
      Acked-by: NSteven Rostedt <rostedt@goodmis.org>
      Signed-off-by: NAvi Kivity <avi@redhat.com>
      95ef1e52
    • L
      Merge branch 'hwmon-for-linus' of... · a767835f
      Linus Torvalds 提交于
      Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
      
      * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
        hwmon: (exynos4_tmu) Fix Kconfig dependency
      
      [ Merging code in-flight, just because I can.  What timezone should I
        use?  - Linus ]
      a767835f
    • A
      minixfs: kill manual hweight(), simplify · f1fd306a
      Al Viro 提交于
      Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      f1fd306a
    • J
      fs/minix: Verify bitmap block counts before mounting · 016e8d44
      Josh Boyer 提交于
      Newer versions of MINIX can create filesystems that allocate an extra
      bitmap block.  Mounting of this succeeds, but doing a statfs call will
      result in an oops in count_free because of a negative number being used
      for the bh index.
      
      Avoid this by verifying the number of allocated blocks at mount time,
      erroring out if there are not enough and make statfs ignore the extras
      if there are too many.
      
      This fixes https://bugzilla.kernel.org/show_bug.cgi?id=18792Signed-off-by: NJosh Boyer <jwboyer@redhat.com>
      Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      016e8d44
  5. 19 11月, 2011 6 次提交