Eric Lee / smarc-fsl-linux-kernel

01 Nov, 2016

1 commit

27 Jul, 2016

1 commit

  • d05d7f407   Merge branch 'for-4.8/core' of git://git.kernel.dk/linux-block ... Browse Code »

    Pull core block updates from Jens Axboe:

    - the big change is the cleanup from Mike Christie, cleaning up our
    uses of command types and modified flags. This is what will throw
    some merge conflicts

    - regression fix for the above for btrfs, from Vincent

    - following up to the above, better packing of struct request from
    Christoph

    - a 2038 fix for blktrace from Arnd

    - a few trivial/spelling fixes from Bart Van Assche

    - a front merge check fix from Damien, which could cause issues on
    SMR drives

    - Atari partition fix from Gabriel

    - convert cfq to highres timers, since jiffies isn't granular enough
    for some devices these days. From Jan and Jeff

    - CFQ priority boost fix idle classes, from me

    - cleanup series from Ming, improving our bio/bvec iteration

    - a direct issue fix for blk-mq from Omar

    - fix for plug merging not involving the IO scheduler, like we do for
    other types of merges. From Tahsin

    - expose DAX type internally and through sysfs. From Toshi and Yigal

    * 'for-4.8/core' of git://git.kernel.dk/linux-block: (76 commits)
    block: Fix front merge check
    block: do not merge requests without consulting with io scheduler
    block: Fix spelling in a source code comment
    block: expose QUEUE_FLAG_DAX in sysfs
    block: add QUEUE_FLAG_DAX for devices to advertise their DAX support
    Btrfs: fix comparison in __btrfs_map_block()
    block: atari: Return early for unsupported sector size
    Doc: block: Fix a typo in queue-sysfs.txt
    cfq-iosched: Charge at least 1 jiffie instead of 1 ns
    cfq-iosched: Fix regression in bonnie++ rewrite performance
    cfq-iosched: Convert slice_resid from u64 to s64
    block: Convert fifo_time from ulong to u64
    blktrace: avoid using timespec
    block/blk-cgroup.c: Declare local symbols static
    block/bio-integrity.c: Add #include "blk.h"
    block/partition-generic.c: Remove a set-but-not-used variable
    block: bio: kill BIO_MAX_SIZE
    cfq-iosched: temporarily boost queue priority for idle classes
    block: drbd: avoid to use BIO_MAX_SIZE
    block: bio: remove BIO_MAX_SECTORS
    ...

    Linus Torvalds
     

25 Jun, 2016

1 commit

  • 7186ee06b   ocfs2: disable BUG assertions in reading blocks ... Browse Code »

    According to some high-load testing, these two BUG assertions were
    encountered, this led system panic. Actually, there were some
    discussions about removing these two BUG() assertions, it would not
    bring any side effect.

    Then, I did the the following changes,

    1) use the existing macro CATCH_BH_JBD_RACES to wrap BUG() in the
    ocfs2_read_blocks_sync function like before.

    2) disable the macro CATCH_BH_JBD_RACES in Makefile by default.

    Link: http://lkml.kernel.org/r/1466574294-26863-1-git-send-email-ghe@suse.com
    Signed-off-by: Gang He
    Cc: Mark Fasheh
    Cc: Joel Becker
    Cc: Junxiao Bi
    Cc: Joseph Qi
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Gang He
     

08 Jun, 2016

1 commit

05 Sep, 2015

1 commit

  • 34237681e   ocfs2: clear the rest of the buffers on error ... Browse Code »

    In case a validation fails, clear the rest of the buffers and return the
    error to the calling function.

    This also facilitates bubbling up the error originating from ocfs2_error
    to calling functions.

    Signed-off-by: Goldwyn Rodrigues
    Reviewed-by: Mark Fasheh
    Cc: Joel Becker
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Goldwyn Rodrigues
     

04 Apr, 2014

1 commit

  • f7cf4f5bf   ocfs2: do not put bh when buffer_uptodate failed ... Browse Code »

    Do not put bh when buffer_uptodate failed in ocfs2_write_block and
    ocfs2_write_super_or_backup, because it will put bh in b_end_io.
    Otherwise it will hit a warning "VFS: brelse: Trying to free free
    buffer".

    Signed-off-by: Alex Chen
    Reviewed-by: Joseph Qi
    Reviewed-by: Srinivas Eeda
    Cc: Mark Fasheh
    Acked-by: Joel Becker
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    alex chen
     

13 Nov, 2013

1 commit

  • 7391a294b   ocfs2: return ENOMEM when sb_getblk() fails ... Browse Code »

    The only reason for sb_getblk() failing is if it can't allocate the
    buffer_head. So return ENOMEM instead when it fails.

    [joseph.qi@huawei.com: ocfs2_symlink_get_block() and ocfs2_read_blocks_sync() and ocfs2_read_blocks() need the same change]
    Signed-off-by: Rui Xiang
    Reviewed-by: Jie Liu
    Reviewed-by: Mark Fasheh
    Cc: Joel Becker
    Cc: Joseph Qi
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rui Xiang
     

07 Mar, 2011

1 commit

  • c1e8d35ef   ocfs2: Remove EXIT from masklog. ... Browse Code »
    43

    mlog_exit is used to record the exit status of a function.
    But because it is added in so many functions, if we enable it,
    the system logs get filled up quickly and cause too much I/O.
    So actually no one can open it for a production system or even
    for a test.

    This patch just try to remove it or change it. So:
    1. if all the error paths already use mlog_errno, it is just removed.
    Otherwise, it will be replaced by mlog_errno.
    2. if it is used to print some return value, it is replaced with
    mlog(0,...).
    mlog_exit_ptr is changed to mlog(0.
    All those mlog(0,...) will be replaced with trace events later.

    Signed-off-by: Tao Ma

    Tao Ma
     

24 Feb, 2011

2 commits

21 Feb, 2011

1 commit

  • ef6b689b6   ocfs2: Remove ENTRY from masklog. ... Browse Code »

    ENTRY is used to record the entry of a function.
    But because it is added in so many functions, if we enable it,
    the system logs get filled up quickly and cause too much I/O.
    So actually no one can open it for a production system or even
    for a test.

    So for mlog_entry_void, we just remove it.
    for mlog_entry(...), we replace it with mlog(0,...), and they
    will be replace by trace event later.

    Signed-off-by: Tao Ma

    Tao Ma
     

01 May, 2010

1 commit

01 Apr, 2010

1 commit

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

26 Jan, 2010

1 commit

05 Sep, 2009

1 commit

06 Jan, 2009

2 commits

  • b86c86fa1   ocfs2: Use BH_JBDPrivateStart instead of BH_Unshadow ... Browse Code »

    This is safer. We no longer have to worry about tracking changes to
    jbd_state_bits.

    Signed-off-by: Mark Fasheh

    Mark Fasheh
     
  • 970e4936d   ocfs2: Validate metadata only when it's read from disk. ... Browse Code »

    Add an optional validation hook to ocfs2_read_blocks(). Now the
    validation function is only called when a block was actually read off of
    disk. It is not called when the buffer was in cache.

    We add a buffer state bit BH_NeedsValidate to flag these buffers. It
    must always be one higher than the last JBD2 buffer state bit.

    The dinode, dirblock, extent_block, and xattr_block validators are
    lifted to this scheme directly. The group_descriptor validator needs to
    be split into two pieces. The first part only needs the gd buffer and
    is passed to ocfs2_read_block(). The second part requires the dinode as
    well, and is called every time. It's only 3 compares, so it's tiny.
    This also allows us to clean up the non-fatal gd check used by resize.c.
    It now has no magic argument.

    Signed-off-by: Joel Becker
    Signed-off-by: Mark Fasheh

    Joel Becker
     

02 Dec, 2008

1 commit

  • d6b58f89f   ocfs2: fix regression in ocfs2_read_blocks_sync() ... Browse Code »

    We're panicing in ocfs2_read_blocks_sync() if a jbd-managed buffer is seen.
    At first glance, this seems ok but in reality it can happen. My test case
    was to just run 'exorcist'. A struct inode is being pushed out of memory but
    is then re-read at a later time, before the buffer has been checkpointed by
    jbd. This causes a BUG to be hit in ocfs2_read_blocks_sync().

    Reviewed-by: Joel Becker
    Signed-off-by: Mark Fasheh

    Mark Fasheh
     

15 Oct, 2008

3 commits

  • d4a8c93c8   ocfs2: Make cached block reads the common case. ... Browse Code »

    ocfs2_read_blocks() currently requires the CACHED flag for cached I/O.
    However, that's the common case. Let's flip it around and provide an
    IGNORE_CACHE flag for the special users. This has the added benefit of
    cleaning up the code some (ignore_cache takes on its special meaning
    earlier in the loop).

    Signed-off-by: Joel Becker
    Signed-off-by: Mark Fasheh

    Joel Becker
     
  • 31d33073c   ocfs2: Require an inode for ocfs2_read_block(s)(). ... Browse Code »

    Now that synchronous readers are using ocfs2_read_blocks_sync(), all
    callers of ocfs2_read_blocks() are passing an inode. Use it
    unconditionally. Since it's there, we don't need to pass the
    ocfs2_super either.

    Signed-off-by: Joel Becker
    Signed-off-by: Mark Fasheh

    Joel Becker
     
  • da1e90985   ocfs2: Separate out sync reads from ocfs2_read_blocks() ... Browse Code »

    The ocfs2_read_blocks() function currently handles sync reads, cached,
    reads, and sometimes cached reads. We're going to add some
    functionality to it, so first we should simplify it. The uncached,
    synchronous reads are much easer to handle as a separate function, so we
    instroduce ocfs2_read_blocks_sync().

    Signed-off-by: Joel Becker
    Signed-off-by: Mark Fasheh

    Joel Becker
     

26 Jan, 2008

2 commits

  • 2fe5c1d7e   ocfs2: clean up bh null checks ... Browse Code »

    If we know a buffer_head is non-null, then brelse() is unnecessary and
    put_bh() can be used instead. Also, an explicit check for NULL is
    unnecessary when using brelse(). This patch only covers buffer_head_io.c and
    resize.c, which have recently added code which exhibits this problem.

    Signed-off-by: Mark Fasheh

    Mark Fasheh
     
  • d659072f7   [PATCH 1/2] ocfs2: Add group extend for online resize ... Browse Code »

    This patch adds the ability for a userspace program to request an extend of
    last cluster group on an Ocfs2 file system. The request is made via ioctl,
    OCFS2_IOC_GROUP_EXTEND. This is derived from EXT3_IOC_GROUP_EXTEND, but is
    obviously Ocfs2 specific.

    tunefs.ocfs2 would call this for an online-resize operation if the last
    cluster group isn't full.

    Signed-off-by: Tao Ma
    Signed-off-by: Mark Fasheh

    Tao Ma
     

21 Sep, 2006

1 commit

  • aa9588741   ocfs2: implement directory read-ahead ... Browse Code »

    Uptodate.c now knows about read-ahead buffers. Use some more aggressive
    logic in ocfs2_readdir().

    The two functions which currently use directory read-ahead are
    ocfs2_find_entry() and ocfs2_readdir().

    Signed-off-by: Mark Fasheh

    Mark Fasheh
     

25 Mar, 2006

1 commit

04 Feb, 2006

1 commit

04 Jan, 2006

1 commit