Eric Lee / smarc-fsl-linux-kernel

05 Jul, 2013

4 commits

29 Jun, 2013

2 commits

  • da53be12b   Don't pass inode to ->d_hash() and ->d_compare() ... Browse Code »

    Instances either don't look at it at all (the majority of cases) or
    only want it to find the superblock (which can be had as dentry->d_sb).
    A few cases that want more are actually safe with dentry->d_inode -
    the only precaution needed is the check that it hadn't been replaced with
    NULL by rmdir() or by overwriting rename(), which case should be simply
    treated as cache miss.

    Signed-off-by: Linus Torvalds
    Signed-off-by: Al Viro

    Linus Torvalds
     
  • 568f8f5ec   [readdir] convert hpfs ... Browse Code »

    Signed-off-by: Al Viro

    Al Viro
     

09 Jun, 2013

1 commit

  • bbd465df7   hpfs: fix warnings when the filesystem fills up ... Browse Code »

    This patch fixes warnings due to missing lock on write error path.

    WARNING: at fs/hpfs/hpfs_fn.h:353 hpfs_truncate+0x75/0x80 [hpfs]()
    Hardware name: empty
    Pid: 26563, comm: dd Tainted: P O 3.9.4 #12
    Call Trace:
    hpfs_truncate+0x75/0x80 [hpfs]
    hpfs_write_begin+0x84/0x90 [hpfs]
    _hpfs_bmap+0x10/0x10 [hpfs]
    generic_file_buffered_write+0x121/0x2c0
    __generic_file_aio_write+0x1c7/0x3f0
    generic_file_aio_write+0x7c/0x100
    do_sync_write+0x98/0xd0
    hpfs_file_write+0xd/0x50 [hpfs]
    vfs_write+0xa2/0x160
    sys_write+0x51/0xa0
    page_fault+0x22/0x30
    system_call_fastpath+0x1a/0x1f

    Signed-off-by: Mikulas Patocka
    Cc: stable@kernel.org # 2.6.39+
    Signed-off-by: Linus Torvalds

    Mikulas Patocka
     

01 Jun, 2013

1 commit

  • 31abdab9c   hpfs: deadlock and race in directory lseek() ... Browse Code »

    For one thing, there's an ABBA deadlock on hpfs fs-wide lock and i_mutex
    in hpfs_dir_lseek() - there's a lot of methods that grab the former with
    the caller already holding the latter, so it must take i_mutex first.

    For another, locking the damn thing, carefully validating the offset,
    then dropping locks and assigning the offset is obviously racy.

    Moreover, we _must_ do hpfs_add_pos(), or the machinery in dnode.c
    won't modify the sucker on B-tree surgeries.

    Signed-off-by: Al Viro

    Al Viro
     

10 Apr, 2013

1 commit

11 Mar, 2013

1 commit

27 Feb, 2013

1 commit

  • d895cb1af   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Browse Code »

    Pull vfs pile (part one) from Al Viro:
    "Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent
    locking violations, etc.

    The most visible changes here are death of FS_REVAL_DOT (replaced with
    "has ->d_weak_revalidate()") and a new helper getting from struct file
    to inode. Some bits of preparation to xattr method interface changes.

    Misc patches by various people sent this cycle *and* ocfs2 fixes from
    several cycles ago that should've been upstream right then.

    PS: the next vfs pile will be xattr stuff."

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits)
    saner proc_get_inode() calling conventions
    proc: avoid extra pde_put() in proc_fill_super()
    fs: change return values from -EACCES to -EPERM
    fs/exec.c: make bprm_mm_init() static
    ocfs2/dlm: use GFP_ATOMIC inside a spin_lock
    ocfs2: fix possible use-after-free with AIO
    ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path
    get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero
    target: writev() on single-element vector is pointless
    export kernel_write(), convert open-coded instances
    fs: encode_fh: return FILEID_INVALID if invalid fid_type
    kill f_vfsmnt
    vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op
    nfsd: handle vfs_getattr errors in acl protocol
    switch vfs_getattr() to struct path
    default SET_PERSONALITY() in linux/elf.h
    ceph: prepopulate inodes only when request is aborted
    d_hash_and_lookup(): export, switch open-coded instances
    9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()
    9p: split dropping the acls from v9fs_set_create_acl()
    ...

    Linus Torvalds
     

23 Feb, 2013

1 commit

29 Jan, 2013

1 commit

09 Jan, 2013

1 commit

21 Dec, 2012

1 commit

10 Oct, 2012

1 commit

06 Oct, 2012

1 commit

  • 32daab969   hpfs: convert to use leXX_add_cpu() ... Browse Code »

    Convert cpu_to_leXX(leXX_to_cpu(E1) + E2) to use leXX_add_cpu().

    dpatch engine is used to auto generate this patch.
    (https://github.com/weiyj/dpatch)

    Signed-off-by: Wei Yongjun
    Cc: Mikulas Patocka
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Wei Yongjun
     

03 Oct, 2012

2 commits

  • aab174f0d   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Browse Code »

    Pull vfs update from Al Viro:

    - big one - consolidation of descriptor-related logics; almost all of
    that is moved to fs/file.c

    (BTW, I'm seriously tempted to rename the result to fd.c. As it is,
    we have a situation when file_table.c is about handling of struct
    file and file.c is about handling of descriptor tables; the reasons
    are historical - file_table.c used to be about a static array of
    struct file we used to have way back).

    A lot of stray ends got cleaned up and converted to saner primitives,
    disgusting mess in android/binder.c is still disgusting, but at least
    doesn't poke so much in descriptor table guts anymore. A bunch of
    relatively minor races got fixed in process, plus an ext4 struct file
    leak.

    - related thing - fget_light() partially unuglified; see fdget() in
    there (and yes, it generates the code as good as we used to have).

    - also related - bits of Cyrill's procfs stuff that got entangled into
    that work; _not_ all of it, just the initial move to fs/proc/fd.c and
    switch of fdinfo to seq_file.

    - Alex's fs/coredump.c spiltoff - the same story, had been easier to
    take that commit than mess with conflicts. The rest is a separate
    pile, this was just a mechanical code movement.

    - a few misc patches all over the place. Not all for this cycle,
    there'll be more (and quite a few currently sit in akpm's tree)."

    Fix up trivial conflicts in the android binder driver, and some fairly
    simple conflicts due to two different changes to the sock_alloc_file()
    interface ("take descriptor handling from sock_alloc_file() to callers"
    vs "net: Providing protocol type via system.sockprotoname xattr of
    /proc/PID/fd entries" adding a dentry name to the socket)

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (72 commits)
    MAX_LFS_FILESIZE should be a loff_t
    compat: fs: Generic compat_sys_sendfile implementation
    fs: push rcu_barrier() from deactivate_locked_super() to filesystems
    btrfs: reada_extent doesn't need kref for refcount
    coredump: move core dump functionality into its own file
    coredump: prevent double-free on an error path in core dumper
    usb/gadget: fix misannotations
    fcntl: fix misannotations
    ceph: don't abuse d_delete() on failure exits
    hypfs: ->d_parent is never NULL or negative
    vfs: delete surplus inode NULL check
    switch simple cases of fget_light to fdget
    new helpers: fdget()/fdput()
    switch o2hb_region_dev_write() to fget_light()
    proc_map_files_readdir(): don't bother with grabbing files
    make get_file() return its argument
    vhost_set_vring(): turn pollstart/pollstop into bool
    switch prctl_set_mm_exe_file() to fget_light()
    switch xfs_find_handle() to fget_light()
    switch xfs_swapext() to fget_light()
    ...

    Linus Torvalds
     
  • 8c0a85377   fs: push rcu_barrier() from deactivate_locked_super() to filesystems ... Browse Code »

    There's no reason to call rcu_barrier() on every
    deactivate_locked_super(). We only need to make sure that all delayed rcu
    free inodes are flushed before we destroy related cache.

    Removing rcu_barrier() from deactivate_locked_super() affects some fast
    paths. E.g. on my machine exit_group() of a last process in IPC
    namespace takes 0.07538s. rcu_barrier() takes 0.05188s of that time.

    Signed-off-by: Kirill A. Shutemov
    Cc: Al Viro
    Signed-off-by: Andrew Morton
    Signed-off-by: Al Viro

    Kirill A. Shutemov
     

21 Sep, 2012

1 commit

14 Jul, 2012

2 commits

  • ebfc3b49a   don't pass nameidata to ->create() ... Browse Code »

    boolean "does it have to be exclusive?" flag is passed instead;
    Local filesystem should just ignore it - the object is guaranteed
    not to be there yet.

    Signed-off-by: Al Viro

    Al Viro
     
  • 00cd8dd3b   stop passing nameidata to ->lookup() ... Browse Code »

    Just the flags; only NFS cares even about that, but there are
    legitimate uses for such argument. And getting rid of that
    completely would require splitting ->lookup() into a couple
    of methods (at least), so let's leave that alone for now...

    Signed-off-by: Al Viro

    Al Viro
     

02 Jun, 2012

1 commit

  • 1193755ac   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Browse Code »

    Pull vfs changes from Al Viro.
    "A lot of misc stuff. The obvious groups:
    * Miklos' atomic_open series; kills the damn abuse of
    ->d_revalidate() by NFS, which was the major stumbling block for
    all work in that area.
    * ripping security_file_mmap() and dealing with deadlocks in the
    area; sanitizing the neighborhood of vm_mmap()/vm_munmap() in
    general.
    * ->encode_fh() switched to saner API; insane fake dentry in
    mm/cleancache.c gone.
    * assorted annotations in fs (endianness, __user)
    * parts of Artem's ->s_dirty work (jff2 and reiserfs parts)
    * ->update_time() work from Josef.
    * other bits and pieces all over the place.

    Normally it would've been in two or three pull requests, but
    signal.git stuff had eaten a lot of time during this cycle ;-/"

    Fix up trivial conflicts in Documentation/filesystems/vfs.txt (the
    'truncate_range' inode method was removed by the VM changes, the VFS
    update adds an 'update_time()' method), and in fs/btrfs/ulist.[ch] (due
    to sparse fix added twice, with other changes nearby).

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (95 commits)
    nfs: don't open in ->d_revalidate
    vfs: retry last component if opening stale dentry
    vfs: nameidata_to_filp(): don't throw away file on error
    vfs: nameidata_to_filp(): inline __dentry_open()
    vfs: do_dentry_open(): don't put filp
    vfs: split __dentry_open()
    vfs: do_last() common post lookup
    vfs: do_last(): add audit_inode before open
    vfs: do_last(): only return EISDIR for O_CREAT
    vfs: do_last(): check LOOKUP_DIRECTORY
    vfs: do_last(): make ENOENT exit RCU safe
    vfs: make follow_link check RCU safe
    vfs: do_last(): use inode variable
    vfs: do_last(): inline walk_component()
    vfs: do_last(): make exit RCU safe
    vfs: split do_lookup()
    Btrfs: move over to use ->update_time
    fs: introduce inode operation ->update_time
    reiserfs: get rid of resierfs_sync_super
    reiserfs: mark the superblock as dirty a bit later
    ...

    Linus Torvalds
     

01 Jun, 2012

1 commit

  • 7bc1bac77   HPFS: remove PRINTK() macro ... Browse Code »

    The PRINTK() macro isn't really used. Let's just remove it because it
    is ugly and out of date.

    Signed-off-by: Dan Carpenter
    Mikulas Patocka
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dan Carpenter
     

30 May, 2012

11 commits

06 May, 2012

1 commit

  • dbd5768f8   vfs: Rename end_writeback() to clear_inode() ... Browse Code »

    After we moved inode_sync_wait() from end_writeback() it doesn't make sense
    to call the function end_writeback() anymore. Rename it to clear_inode()
    which well says what the function really does - set I_CLEAR flag.

    Signed-off-by: Jan Kara
    Signed-off-by: Fengguang Wu

    Jan Kara
     

21 Mar, 2012

1 commit

04 Jan, 2012

3 commits