Eric Lee / smarc-fsl-linux-kernel

27 Apr, 2015

1 commit

  • 9ec3a646f   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ... Browse Code »

    Pull fourth vfs update from Al Viro:
    "d_inode() annotations from David Howells (sat in for-next since before
    the beginning of merge window) + four assorted fixes"

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
    RCU pathwalk breakage when running into a symlink overmounting something
    fix I_DIO_WAKEUP definition
    direct-io: only inc/dec inode->i_dio_count for file systems
    fs/9p: fix readdir()
    VFS: assorted d_backing_inode() annotations
    VFS: fs/inode.c helpers: d_inode() annotations
    VFS: fs/cachefiles: d_backing_inode() annotations
    VFS: fs library helpers: d_inode() annotations
    VFS: assorted weird filesystems: d_inode() annotations
    VFS: normal filesystems (and lustre): d_inode() annotations
    VFS: security/: d_inode() annotations
    VFS: security/: d_backing_inode() annotations
    VFS: net/: d_inode() annotations
    VFS: net/unix: d_backing_inode() annotations
    VFS: kernel/: d_inode() annotations
    VFS: audit: d_backing_inode() annotations
    VFS: Fix up some ->d_inode accesses in the chelsio driver
    VFS: Cachefiles should perform fs modifications on the top layer only
    VFS: AF_UNIX sockets should call mknod on the top layer only

    Linus Torvalds
     

17 Apr, 2015

3 commits

16 Apr, 2015

1 commit

18 Feb, 2015

1 commit

  • 111d639dd   fs/befs/linuxvfs.c: remove unnecessary casting ... Browse Code »

    Fix the following coccinelle warning:

    fs/befs/linuxvfs.c:278:14-36: WARNING: casting value returned by memory allocation function to (struct befs_inode_info *) is useless.

    [akpm@linux-foundation.org: avoid 80-col ugliness]
    Signed-off-by: Fabian Frederick
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Fabian Frederick
     

14 Dec, 2014

1 commit

20 Nov, 2014

1 commit

14 Oct, 2014

1 commit

  • 0f2a84f41   fs/befs/btree.c: remove typedef befs_btree_node ... Browse Code »

    The Linux kernel coding style guidelines suggest not using typedefs for
    structure types. This patch gets rid of the typedef for befs_btree_node.

    The following Coccinelle semantic patch detects the case.

    @tn1@
    type td;
    @@

    typedef struct { ... } td;

    @script:python tf@
    td << tn1.td;
    tdres;
    @@

    coccinelle.tdres = td;

    @@
    type tn1.td;
    identifier tf.tdres;
    @@

    -typedef
    struct
    + tdres
    { ... }
    -td
    ;

    @@
    type tn1.td;
    identifier tf.tdres;
    @@

    -td
    + struct tdres

    Signed-off-by: Himangi Saraogi
    Acked-by: Julia Lawall
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Himangi Saraogi
     

09 Aug, 2014

1 commit

  • 8e19189ef   fs/befs/linuxvfs.c: check superblock before dump operation ... Browse Code »

    befs_dump_super_block was called between befs_load_sb and befs_check_sb.
    It has been reported to crash (5/900) with null block testing.

    This patch loads, checks and only dump superblock if it's a valid one
    then brelse bh.

    (befs_dump_super_block uses disk_sb (bh->b_data) so it seems we need to
    call it before brelse(bh) but I don't know why befs_check_sb was called
    after brelse. Another thing I don't understand is why this problem
    appears now).

    Signed-off-by: Fabian Frederick
    Reported-by: Fengguang Wu
    Cc: Joe Perches
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Fabian Frederick
     

07 Aug, 2014

1 commit

  • 158c12948   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial ... Browse Code »

    Pull trivial tree changes from Jiri Kosina:
    "Summer edition of trivial tree updates"

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
    doc: fix two typos in watchdog-api.txt
    irq-gic: remove file name from heading comment
    MAINTAINERS: Add miscdevice.h to file list for char/misc drivers.
    scsi: mvsas: mv_sas.c: Fix for possible null pointer dereference
    doc: replace "practise" with "practice" in Documentation
    befs: remove check for CONFIG_BEFS_RW
    scsi: doc: fix 'SCSI_NCR_SETUP_MASTER_PARITY'
    drivers/usb/phy/phy.c: remove a leading space
    mfd: fix comment
    cpuidle: fix comment
    doc: hpfall.c: fix missing null-terminate after strncpy call
    usb: doc: hotplug.txt code typos
    kbuild: fix comment in Makefile.modinst
    SH: add proper prompt to SH_MAGIC_PANEL_R2_VERSION
    ARM: msm: Remove MSM_SCM
    crypto: Remove MPILIB_EXTRA
    doc: CN: remove dead link, kerneltrap.org no longer works
    media: update reference, kerneltrap.org no longer works
    hexagon: update reference, kerneltrap.org no longer works
    doc: LSM: update reference, kerneltrap.org no longer works
    ...

    Linus Torvalds
     

19 Jun, 2014

1 commit

07 Jun, 2014

4 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

3 commits

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
     

25 Jan, 2014

1 commit

25 Oct, 2013

1 commit

29 Jun, 2013

1 commit

01 Jun, 2013

1 commit

01 May, 2013

1 commit

  • 5d434fcb2   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial ... Browse Code »

    Pull trivial tree updates from Jiri Kosina:
    "Usual stuff, mostly comment fixes, typo fixes, printk fixes and small
    code cleanups"

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (45 commits)
    mm: Convert print_symbol to %pSR
    gfs2: Convert print_symbol to %pSR
    m32r: Convert print_symbol to %pSR
    iostats.txt: add easy-to-find description for field 6
    x86 cmpxchg.h: fix wrong comment
    treewide: Fix typo in printk and comments
    doc: devicetree: Fix various typos
    docbook: fix 8250 naming in device-drivers
    pata_pdc2027x: Fix compiler warning
    treewide: Fix typo in printks
    mei: Fix comments in drivers/misc/mei
    treewide: Fix typos in kernel messages
    pm44xx: Fix comment for "CONFIG_CPU_IDLE"
    doc: Fix typo "CONFIG_CGROUP_CGROUP_MEMCG_SWAP"
    mmzone: correct "pags" to "pages" in comment.
    kernel-parameters: remove outdated 'noresidual' parameter
    Remove spurious _H suffixes from ifdef comments
    sound: Remove stray pluses from Kconfig file
    radio-shark: Fix printk "CONFIG_LED_CLASS"
    doc: put proper reference to CONFIG_MODULE_SIG_ENFORCE
    ...

    Linus Torvalds
     

18 Mar, 2013

1 commit

04 Mar, 2013

1 commit

  • 7f78e0351   fs: Limit sys_mount to only request filesystem modules. ... Browse Code »

    Modify the request_module to prefix the file system type with "fs-"
    and add aliases to all of the filesystems that can be built as modules
    to match.

    A common practice is to build all of the kernel code and leave code
    that is not commonly needed as modules, with the result that many
    users are exposed to any bug anywhere in the kernel.

    Looking for filesystems with a fs- prefix limits the pool of possible
    modules that can be loaded by mount to just filesystems trivially
    making things safer with no real cost.

    Using aliases means user space can control the policy of which
    filesystem modules are auto-loaded by editing /etc/modprobe.d/*.conf
    with blacklist and alias directives. Allowing simple, safe,
    well understood work-arounds to known problematic software.

    This also addresses a rare but unfortunate problem where the filesystem
    name is not the same as it's module name and module auto-loading
    would not work. While writing this patch I saw a handful of such
    cases. The most significant being autofs that lives in the module
    autofs4.

    This is relevant to user namespaces because we can reach the request
    module in get_fs_type() without having any special permissions, and
    people get uncomfortable when a user specified string (in this case
    the filesystem type) goes all of the way to request_module.

    After having looked at this issue I don't think there is any
    particular reason to perform any filtering or permission checks beyond
    making it clear in the module request that we want a filesystem
    module. The common pattern in the kernel is to call request_module()
    without regards to the users permissions. In general all a filesystem
    module does once loaded is call register_filesystem() and go to sleep.
    Which means there is not much attack surface exposed by loading a
    filesytem module unless the filesystem is mounted. In a user
    namespace filesystems are not mounted unless .fs_flags = FS_USERNS_MOUNT,
    which most filesystems do not set today.

    Acked-by: Serge Hallyn
    Acked-by: Kees Cook
    Reported-by: Kees Cook
    Signed-off-by: "Eric W. Biederman"

    Eric W. Biederman
     

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

22 Jan, 2013

1 commit

  • 5c8e0226e   fs/befs: remove depends on CONFIG_EXPERIMENTAL ... Browse Code »

    The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
    while now and is almost always enabled by default. As agreed during the
    Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

    Cc: Al Viro
    Signed-off-by: Kees Cook
    Signed-off-by: Greg Kroah-Hartman

    Kees Cook
     

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

1 commit

  • 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
     

21 Mar, 2012

1 commit

04 Jan, 2012

1 commit

  • 6b520e056   vfs: fix the stupidity with i_dentry in inode destructors ... Browse Code »

    Seeing that just about every destructor got that INIT_LIST_HEAD() copied into
    it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once();
    the cost of taking it into inode_init_always() will be negligible for pipes
    and sockets and negative for everything else. Not to mention the removal of
    boilerplate code from ->destroy_inode() instances...

    Signed-off-by: Al Viro

    Al Viro
     

02 Nov, 2011

1 commit

18 Aug, 2011

1 commit

31 Mar, 2011

1 commit