Eric Lee / smarc-fsl-linux-kernel

10 Jul, 2015

4 commits

24 Jun, 2015

1 commit

  • db6172c41   fs: cleanup slight list_entry abuse ... Browse Code »

    list_entry is just a wrapper for container_of, but it is arguably
    wrong (and slightly confusing) to use it when the pointed-to struct
    member is not a struct list_head. Use container_of directly instead.

    Signed-off-by: Rasmus Villemoes
    Signed-off-by: Al Viro

    Rasmus Villemoes
     

16 Apr, 2015

1 commit

12 Apr, 2015

1 commit

  • 5d5d56897   make new_sync_{read,write}() static ... Browse Code »

    All places outside of core VFS that checked ->read and ->write for being NULL or
    called the methods directly are gone now, so NULL {read,write} with non-NULL
    {read,write}_iter will do the right thing in all cases.

    Signed-off-by: Al Viro

    Al Viro
     

09 Aug, 2014

1 commit

13 Jun, 2014

1 commit

  • 16b905780   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Browse Code »

    Pull vfs updates from Al Viro:
    "This the bunch that sat in -next + lock_parent() fix. This is the
    minimal set; there's more pending stuff.

    In particular, I really hope to get acct.c fixes merged this cycle -
    we need that to deal sanely with delayed-mntput stuff. In the next
    pile, hopefully - that series is fairly short and localized
    (kernel/acct.c, fs/super.c and fs/namespace.c). In this pile: more
    iov_iter work. Most of prereqs for ->splice_write with sane locking
    order are there and Kent's dio rewrite would also fit nicely on top of
    this pile"

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (70 commits)
    lock_parent: don't step on stale ->d_parent of all-but-freed one
    kill generic_file_splice_write()
    ceph: switch to iter_file_splice_write()
    shmem: switch to iter_file_splice_write()
    nfs: switch to iter_splice_write_file()
    fs/splice.c: remove unneeded exports
    ocfs2: switch to iter_file_splice_write()
    ->splice_write() via ->write_iter()
    bio_vec-backed iov_iter
    optimize copy_page_{to,from}_iter()
    bury generic_file_aio_{read,write}
    lustre: get rid of messing with iovecs
    ceph: switch to ->write_iter()
    ceph_sync_direct_write: stop poking into iov_iter guts
    ceph_sync_read: stop poking into iov_iter guts
    new helper: copy_page_from_iter()
    fuse: switch to ->write_iter()
    btrfs: switch to ->write_iter()
    ocfs2: switch to ->write_iter()
    xfs: switch to ->write_iter()
    ...

    Linus Torvalds
     

07 Jun, 2014

4 commits

07 May, 2014

2 commits

05 Apr, 2014

1 commit

  • 24e7ea3be   Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 ... Browse Code »

    Pull ext4 updates from Ted Ts'o:
    "Major changes for 3.14 include support for the newly added ZERO_RANGE
    and COLLAPSE_RANGE fallocate operations, and scalability improvements
    in the jbd2 layer and in xattr handling when the extended attributes
    spill over into an external block.

    Other than that, the usual clean ups and minor bug fixes"

    * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (42 commits)
    ext4: fix premature freeing of partial clusters split across leaf blocks
    ext4: remove unneeded test of ret variable
    ext4: fix comment typo
    ext4: make ext4_block_zero_page_range static
    ext4: atomically set inode->i_flags in ext4_set_inode_flags()
    ext4: optimize Hurd tests when reading/writing inodes
    ext4: kill i_version support for Hurd-castrated file systems
    ext4: each filesystem creates and uses its own mb_cache
    fs/mbcache.c: doucple the locking of local from global data
    fs/mbcache.c: change block and index hash chain to hlist_bl_node
    ext4: Introduce FALLOC_FL_ZERO_RANGE flag for fallocate
    ext4: refactor ext4_fallocate code
    ext4: Update inode i_size after the preallocation
    ext4: fix partial cluster handling for bigalloc file systems
    ext4: delete path dealloc code in ext4_ext_handle_uninitialized_extents
    ext4: only call sync_filesystm() when remounting read-only
    fs: push sync_filesystem() down to the file system's remount_fs()
    jbd2: improve error messages for inconsistent journal heads
    jbd2: minimize region locked by j_list_lock in jbd2_journal_forget()
    jbd2: minimize region locked by j_list_lock in journal_get_create_access()
    ...

    Linus Torvalds
     

04 Apr, 2014

1 commit

  • 91b0abe36   mm + fs: store shadow entries in page cache ... Browse Code »

    Reclaim will be leaving shadow entries in the page cache radix tree upon
    evicting the real page. As those pages are found from the LRU, an
    iput() can lead to the inode being freed concurrently. At this point,
    reclaim must no longer install shadow pages because the inode freeing
    code needs to ensure the page tree is really empty.

    Add an address_space flag, AS_EXITING, that the inode freeing code sets
    under the tree lock before doing the final truncate. Reclaim will check
    for this flag before installing shadow pages.

    Signed-off-by: Johannes Weiner
    Reviewed-by: Rik van Riel
    Reviewed-by: Minchan Kim
    Cc: Andrea Arcangeli
    Cc: Bob Liu
    Cc: Christoph Hellwig
    Cc: Dave Chinner
    Cc: Greg Thelen
    Cc: Hugh Dickins
    Cc: Jan Kara
    Cc: KOSAKI Motohiro
    Cc: Luigi Semenzato
    Cc: Mel Gorman
    Cc: Metin Doslu
    Cc: Michel Lespinasse
    Cc: Ozgun Erdogan
    Cc: Peter Zijlstra
    Cc: Roman Gushchin
    Cc: Ryan Mallon
    Cc: Tejun Heo
    Cc: Vlastimil Babka
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Johannes Weiner
     

13 Mar, 2014

1 commit

  • 02b9984d6   fs: push sync_filesystem() down to the file system's remount_fs() ... Browse Code »

    Previously, the no-op "mount -o mount /dev/xxx" operation when the
    file system is already mounted read-write causes an implied,
    unconditional syncfs(). This seems pretty stupid, and it's certainly
    documented or guaraunteed to do this, nor is it particularly useful,
    except in the case where the file system was mounted rw and is getting
    remounted read-only.

    However, it's possible that there might be some file systems that are
    actually depending on this behavior. In most file systems, it's
    probably fine to only call sync_filesystem() when transitioning from
    read-write to read-only, and there are some file systems where this is
    not needed at all (for example, for a pseudo-filesystem or something
    like romfs).

    Signed-off-by: "Theodore Ts'o"
    Cc: linux-fsdevel@vger.kernel.org
    Cc: Christoph Hellwig
    Cc: Artem Bityutskiy
    Cc: Adrian Hunter
    Cc: Evgeniy Dushistov
    Cc: Jan Kara
    Cc: OGAWA Hirofumi
    Cc: Anders Larsen
    Cc: Phillip Lougher
    Cc: Kees Cook
    Cc: Mikulas Patocka
    Cc: Petr Vandrovec
    Cc: xfs@oss.sgi.com
    Cc: linux-btrfs@vger.kernel.org
    Cc: linux-cifs@vger.kernel.org
    Cc: samba-technical@lists.samba.org
    Cc: codalist@coda.cs.cmu.edu
    Cc: linux-ext4@vger.kernel.org
    Cc: linux-f2fs-devel@lists.sourceforge.net
    Cc: fuse-devel@lists.sourceforge.net
    Cc: cluster-devel@redhat.com
    Cc: linux-mtd@lists.infradead.org
    Cc: jfs-discussion@lists.sourceforge.net
    Cc: linux-nfs@vger.kernel.org
    Cc: linux-nilfs@vger.kernel.org
    Cc: linux-ntfs-dev@lists.sourceforge.net
    Cc: ocfs2-devel@oss.oracle.com
    Cc: reiserfs-devel@vger.kernel.org

    Theodore Ts'o
     

03 Feb, 2014

2 commits

  • 1c0b8a7a6   hpfs: optimize quad buffer loading ... Browse Code »

    HPFS needs to load 4 consecutive 512-byte sectors when accessing the
    directory nodes or bitmaps. We can't switch to 2048-byte block size
    because files are allocated in the units of 512-byte sectors.

    Previously, the driver would allocate a 2048-byte area using kmalloc,
    copy the data from four buffers to this area and eventually copy them
    back if they were modified.

    In the current implementation of the buffer cache, buffers are allocated
    in the pagecache. That means that 4 consecutive 512-byte buffers are
    stored in consecutive areas in the kernel address space. So, we don't
    need to allocate extra memory and copy the content of the buffers there.

    This patch optimizes the code to avoid copying the buffers. It checks
    if the four buffers are stored in contiguous memory - if they are not,
    it falls back to allocating a 2048-byte area and copying data there.

    Signed-off-by: Mikulas Patocka
    Signed-off-by: Linus Torvalds

    Mikulas Patocka
     
  • 2cbe5c76f   hpfs: remember free space ... Browse Code »

    Previously, hpfs scanned all bitmaps each time the user asked for free
    space using statfs. This patch changes it so that hpfs scans the
    bitmaps only once, remembes the free space and on next invocation of
    statfs it returns the value instantly.

    New versions of wine are hammering on the statfs syscall very heavily,
    making some games unplayable when they're stored on hpfs, with load
    times in minutes.

    This should be backported to the stable kernels because it fixes
    user-visible problem (excessive level load times in wine).

    Signed-off-by: Mikulas Patocka
    Cc: stable@vger.kernel.org
    Signed-off-by: Linus Torvalds

    Mikulas Patocka
     

09 Nov, 2013

1 commit

25 Oct, 2013

1 commit

13 Sep, 2013

1 commit

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