1. 05 Apr, 2012 15 commits
  2. 31 Mar, 2012 25 commits
    • Linus Torvalds's avatar
      Linux 3.4-rc1 · dd775ae2
      Linus Torvalds authored
      dd775ae2
    • Linus Torvalds's avatar
      Merge branch 's3-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio-console · b7ffff4b
      Linus Torvalds authored
      Pull virtio S3 support patches from Amit Shah:
       "Turns out S3 is not different from S4 for virtio devices: the device
        is assumed to be reset, so the host and guest state are to be assumed
        to be out of sync upon resume.  We handle the S4 case with exactly the
        same scenario, so just point the suspend/resume routines to the
        freeze/restore ones.
      
        Once that is done, we also use the PM API's macro to initialise the
        sleep functions.
      
        A couple of cleanups are included: there's no need for special thaw
        processing in the balloon driver, so that's addressed in patches 1 and
        2.
      
        Testing: both S3 and S4 support have been tested using these patches
        using a similar method used earlier during S4 patch development: a
        guest is started with virtio-blk as the only disk, a virtio network
        card, a virtio-serial port and a virtio balloon device.  Ping from
        guest to host, dd /dev/zero to a file on the disk, and IO from the
        host on the virtio-serial port, all at once, while exercising S4 and
        S3 (separately) were tested.  They all continue to work fine after
        resume.  virtio balloon values too were tested by inflating and
        deflating the balloon."
      
      Pulling from Amit, since Rusty is off getting married (and presumably
      shaving people).
      
      * 's3-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio-console:
        virtio-pci: switch to PM ops macro to initialise PM functions
        virtio-pci: S3 support
        virtio-pci: drop restore_common()
        virtio: drop thaw PM operation
        virtio: balloon: Allow stats update after restore from S4
      b7ffff4b
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 8bb1f229
      Linus Torvalds authored
      Pull second try at vfs part d#2 from Al Viro:
       "Miklos' first series (with do_lookup() rewrite split into edible
        chunks) + assorted bits and pieces.
      
        The 'untangling of do_lookup()' series is is a splitup of what used to
        be a monolithic patch from Miklos, so this series is basically "how do
        I convince myself that his patch is correct (or find a hole in it)".
        No holes found and I like the resulting cleanup, so in it went..."
      
      Changes from try 1: Fix a boot problem with selinux, and commit messages
      prettied up a bit.
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (24 commits)
        vfs: fix out-of-date dentry_unhash() comment
        vfs: split __lookup_hash
        untangling do_lookup() - take __lookup_hash()-calling case out of line.
        untangling do_lookup() - switch to calling __lookup_hash()
        untangling do_lookup() - merge d_alloc_and_lookup() callers
        untangling do_lookup() - merge failure exits in !dentry case
        untangling do_lookup() - massage !dentry case towards __lookup_hash()
        untangling do_lookup() - get rid of need_reval in !dentry case
        untangling do_lookup() - eliminate a loop.
        untangling do_lookup() - expand the area under ->i_mutex
        untangling do_lookup() - isolate !dentry stuff from the rest of it.
        vfs: move MAY_EXEC check from __lookup_hash()
        vfs: don't revalidate just looked up dentry
        vfs: fix d_need_lookup/d_revalidate order in do_lookup
        ext3: move headers to fs/ext3/
        migrate ext2_fs.h guts to fs/ext2/ext2.h
        new helper: ext2_image_size()
        get rid of pointless includes of ext2_fs.h
        ext2: No longer export ext2_fs.h to user space
        mtdchar: kill persistently held vfsmount
        ...
      8bb1f229
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f22e08a7
      Linus Torvalds authored
      Pull scheduler fixes from Ingo Molnar.
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq()
        sched: Fix __schedule_bug() output when called from an interrupt
        sched/arch: Introduce the finish_arch_post_lock_switch() scheduler callback
      f22e08a7
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f187e9fd
      Linus Torvalds authored
      Pull perf updates and fixes from Ingo Molnar:
       "It's mostly fixes, but there's also two late items:
      
         - preliminary GTK GUI support for perf report
         - PMU raw event format descriptors in sysfs, to be parsed by tooling
      
        The raw event format in sysfs is a new ABI.  For example for the 'CPU'
        PMU we have:
      
          aldebaran:~> ll /sys/bus/event_source/devices/cpu/format/*
          -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/any
          -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/cmask
          -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/edge
          -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/event
          -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/inv
          -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/offcore_rsp
          -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/pc
          -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/umask
      
        those lists of fields contain a specific format:
      
          aldebaran:~> cat /sys/bus/event_source/devices/cpu/format/offcore_rsp
          config1:0-63
      
        So, those who wish to specify raw events can now use the following
        event format:
      
          -e cpu/cmask=1,event=2,umask=3
      
        Most people will not want to specify any events (let alone raw
        events), they'll just use whatever default event the tools use.
      
        But for more obscure PMU events that have no cross-architecture
        generic events the above syntax is more usable and a bit more
        structured than specifying hex numbers."
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
        perf tools: Remove auto-generated bison/flex files
        perf annotate: Fix off by one symbol hist size allocation and hit accounting
        perf tools: Add missing ref-cycles event back to event parser
        perf annotate: addr2line wants addresses in same format as objdump
        perf probe: Finder fails to resolve function name to address
        tracing: Fix ent_size in trace output
        perf symbols: Handle NULL dso in dso__name_len
        perf symbols: Do not include libgen.h
        perf tools: Fix bug in raw sample parsing
        perf tools: Fix display of first level of callchains
        perf tools: Switch module.h into export.h
        perf: Move mmap page data_head offset assertion out of header
        perf: Fix mmap_page capabilities and docs
        perf diff: Fix to work with new hists design
        perf tools: Fix modifier to be applied on correct events
        perf tools: Fix various casting issues for 32 bits
        perf tools: Simplify event_read_id exit path
        tracing: Fix ftrace stack trace entries
        tracing: Move the tracing_on/off() declarations into CONFIG_TRACING
        perf report: Add a simple GTK2-based 'perf report' browser
        ...
      f187e9fd
    • Linus Torvalds's avatar
      Merge tag 'parisc-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6 · adb3b1f3
      Linus Torvalds authored
      Pull PARISC misc updates from James Bottomley:
       "This is a couple of minor updates (fixing lws futex locking and
        removing some obsolete cpu_*_map calls)."
      
      * tag 'parisc-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
        [PARISC] remove references to cpu_*_map.
        [PARISC] futex: Use same lock set as lws calls
      adb3b1f3
    • Linus Torvalds's avatar
      Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 · a75ee6ec
      Linus Torvalds authored
      Pull SCSI updates from James Bottomley:
       "This is primarily another round of driver updates (lpfc, bfa, fcoe,
        ipr) plus a new ufshcd driver.  There shouldn't be anything
        controversial in here (The final deletion of scsi proc_ops which
        caused some build breakage has been held over until the next merge
        window to give us more time to stabilise it).
      
        I'm afraid, with me moving continents at exactly the wrong time,
        anything submitted after the merge window opened has been held over to
        the next merge window."
      
      * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (63 commits)
        [SCSI] ipr: Driver version 2.5.3
        [SCSI] ipr: Increase alignment boundary of command blocks
        [SCSI] ipr: Increase max concurrent oustanding commands
        [SCSI] ipr: Remove unnecessary memory barriers
        [SCSI] ipr: Remove unnecessary interrupt clearing on new adapters
        [SCSI] ipr: Fix target id allocation re-use problem
        [SCSI] atp870u, mpt2sas, qla4xxx use pci_dev->revision
        [SCSI] fcoe: Drop the rtnl_mutex before calling fcoe_ctlr_link_up
        [SCSI] bfa: Update the driver version to 3.0.23.0
        [SCSI] bfa: BSG and User interface fixes.
        [SCSI] bfa: Fix to avoid vport delete hang on request queue full scenario.
        [SCSI] bfa: Move service parameter programming logic into firmware.
        [SCSI] bfa: Revised Fabric Assigned Address(FAA) feature implementation.
        [SCSI] bfa: Flash controller IOC pll init fixes.
        [SCSI] bfa: Serialize the IOC hw semaphore unlock logic.
        [SCSI] bfa: Modify ISR to process pending completions
        [SCSI] bfa: Add fc host issue lip support
        [SCSI] mpt2sas: remove extraneous sas_log_info messages
        [SCSI] libfc: fcoe_transport_create fails in single-CPU environment
        [SCSI] fcoe: reduce contention for fcoe_rx_list lock [v2]
        ...
      a75ee6ec
    • J. Bruce Fields's avatar
      vfs: fix out-of-date dentry_unhash() comment · c0d02594
      J. Bruce Fields authored
      64252c75 "vfs: remove dget() from
      dentry_unhash()" changed the implementation but not the comment.
      
      Cc: Sage Weil <sage@newdream.net>
      Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      c0d02594
    • Miklos Szeredi's avatar
      vfs: split __lookup_hash · bad61189
      Miklos Szeredi authored
      Split __lookup_hash into two component functions:
      
       lookup_dcache - tries cached lookup, returns whether real lookup is needed
       lookup_real - calls i_op->lookup
      
      This eliminates code duplication between d_alloc_and_lookup() and
      d_inode_lookup().
      Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      bad61189
    • Al Viro's avatar
    • Al Viro's avatar
      untangling do_lookup() - switch to calling __lookup_hash() · a3255546
      Al Viro authored
      now we have __lookup_hash() open-coded if !dentry case;
      just call the damn thing instead...
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      a3255546
    • Al Viro's avatar
      a6ecdfcf
    • Al Viro's avatar
      ec335e91
    • Al Viro's avatar
      untangling do_lookup() - massage !dentry case towards __lookup_hash() · d774a058
      Al Viro authored
      Reorder if-else cases for starters...
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      d774a058
    • Al Viro's avatar
      untangling do_lookup() - get rid of need_reval in !dentry case · 08b0ab7c
      Al Viro authored
      Everything arriving into if (!dentry) will have need_reval = 1.
      Indeed, the only way to get there with need_reval reset to 0 would
      be via
      	if (unlikely(d_need_lookup(dentry)))
      		goto unlazy;
      	if (unlikely(dentry->d_flags & DCACHE_OP_REVALIDATE)) {
      		status = d_revalidate(dentry, nd);
      	if (unlikely(status <= 0)) {
      		if (status != -ECHILD)
      			need_reval = 0;
      		goto unlazy;
      ...
      unlazy:
      	/* no assignments to dentry */
      	if (dentry && unlikely(d_need_lookup(dentry))) {
      		dput(dentry);
      		dentry = NULL;
      	}
      and if d_need_lookup() had already been false the first time around, it
      will remain false on the second call as well.
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      08b0ab7c
    • Al Viro's avatar
      untangling do_lookup() - eliminate a loop. · acc9cb3c
      Al Viro authored
      d_lookup() *will* fail after successful d_invalidate(), if we are
      holding i_mutex all along.  IOW, we don't need to jump back to
      l: - we know what path will be taken there and can do that (i.e.
      d_alloc_and_lookup()) directly.
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      acc9cb3c
    • Al Viro's avatar
      untangling do_lookup() - expand the area under ->i_mutex · 37c17e1f
      Al Viro authored
      keep holding ->i_mutex over revalidation parts
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      37c17e1f
    • Al Viro's avatar
      untangling do_lookup() - isolate !dentry stuff from the rest of it. · 3f6c7c71
      Al Viro authored
      Duplicate the revalidation-related parts into if (!dentry) branch.
      Next step will be to pull them under i_mutex.
      
      This and the next 8 commits are more or less a splitup of patch
      by Miklos; folks, when you are working with something that convoluted,
      carve your patches up into easily reviewed steps, especially when
      a lot of codepaths involved are rarely hit...
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      3f6c7c71
    • Miklos Szeredi's avatar
      vfs: move MAY_EXEC check from __lookup_hash() · cda309de
      Miklos Szeredi authored
      The only caller of __lookup_hash() that needs the exec permission check on
      parent is lookup_one_len().
      
      All lookup_hash() callers already checked permission in LOOKUP_PARENT walk.
      Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      cda309de
    • Miklos Szeredi's avatar
      vfs: don't revalidate just looked up dentry · 3637c05d
      Miklos Szeredi authored
      __lookup_hash() calls ->lookup() if the dentry needs lookup and on success
      revalidates the dentry (all under dir->i_mutex).
      
      While this is harmless it doesn't make a lot of sense.
      Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      3637c05d
    • Miklos Szeredi's avatar
      vfs: fix d_need_lookup/d_revalidate order in do_lookup · fa4ee159
      Miklos Szeredi authored
      Doing revalidate on a dentry which has not yet been looked up makes no sense.
      
      Move the d_need_lookup() check before d_revalidate().
      Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      fa4ee159
    • Al Viro's avatar
      ext3: move headers to fs/ext3/ · 4613ad18
      Al Viro authored
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      4613ad18
    • Al Viro's avatar
      migrate ext2_fs.h guts to fs/ext2/ext2.h · f7699f2b
      Al Viro authored
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      f7699f2b
    • Al Viro's avatar
      new helper: ext2_image_size() · 39429c5e
      Al Viro authored
      ... implemented that way since the next commit will leave it
      almost alone in ext2_fs.h - most of the file (including
      struct ext2_super_block) is going to move to fs/ext2/ext2.h.
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      39429c5e
    • Al Viro's avatar
      get rid of pointless includes of ext2_fs.h · 2f99c369
      Al Viro authored
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      2f99c369