Doug / smarc-fsl-linux-kernel

21 Oct, 2011

1 commit

  • b5b24d7ae   GFS2: Fix AIL flush issue during fsync ... Browse Code »

    Unfortunately, it is not enough to just ignore locked buffers during
    the AIL flush from fsync. We need to be able to ignore all buffers
    which are locked, dirty or pinned at this stage as they might have
    been added subsequent to the log flush earlier in the fsync function.

    In addition, this means that we no longer need to rely on i_mutex to
    keep out writes during fsync, so we can, as a side-effect, remove
    that protection too.

    Signed-off-by: Steven Whitehouse
    Tested-By: Abhijith Das

    Steven Whitehouse
     

20 Apr, 2011

1 commit

  • dba898b02   GFS2: Clean up fsync() ... Browse Code »

    This patch is designed to clean up GFS2's fsync
    implementation and ensure that it really does get everything on
    disk. Since ->write_inode() has been updated, we can call that
    via the vfs library function sync_inode_metadata() and the only
    remaining thing that has to be done is to ensure that we get
    any revoke records in the log after the inode has been written back.

    Signed-off-by: Steven Whitehouse

    Steven Whitehouse
     

24 Mar, 2009

1 commit

  • 64d576ba2   GFS2: Add a "demote a glock" interface to sysfs ... Browse Code »

    This adds a sysfs file called demote_rq to GFS2's
    per filesystem directory. Its possible to use this
    file to demote arbitrary glocks in exactly the same
    way as if a request had come in from a remote node.

    This is intended for testing issues relating to caching
    of data under glocks. Despite that, the interface is
    generic enough to send requests to any type of glock,
    but be careful as its not always safe to send an
    arbitrary message to an arbitrary glock. For that reason
    and to prevent DoS, this interface is restricted to root
    only.

    The messages look like this:

    :

    Example:

    echo -n "2:13324 EX" >/sys/fs/gfs2/unity:myfs/demote_rq

    Which means "please demote inode glock (type 2) number 13324 so that
    I can get an EX (exclusive) lock". The lock modes are those which
    would normally be sent by a remote node in its callback so if you
    want to unlock a glock, you use EX, to demote to shared, use SH or PR
    (depending on whether you like GFS2 or DLM lock modes better!).

    If the glock doesn't exist, you'll get -ENOENT returned. If the
    arguments don't make sense, you'll get -EINVAL returned.

    The plan is that this interface will be used in combination with
    the blktrace patch which I recently posted for comments although
    it is, of course, still useful in its own right.

    Signed-off-by: Steven Whitehouse

    Steven Whitehouse
     

05 Sep, 2006

1 commit

01 Sep, 2006

1 commit

  • e9fc2aa09   [GFS2] Update copyright, tidy up incore.h ... Browse Code »

    As per comments from Jan Engelhardt this
    updates the copyright message to say "version" in full rather than
    "v.2". Also incore.h has been updated to remove forward structure
    declarations which are not required.

    The gfs2_quota_lvb structure has now had endianess annotations added
    to it. Also quota.c has been updated so that we now store the
    lvb data locally in endian independant format to avoid needing
    a structure in host endianess too. As a result the endianess
    conversions are done as required at various points and thus the
    conversion routines in lvb.[ch] are no longer required. I've
    moved the one remaining constant in lvb.h thats used into lm.h
    and removed the unused lvb.[ch].

    I have not changed the HIF_ constants. That is left to a later patch
    which I hope will unify the gh_flags and gh_iflags fields of the
    struct gfs2_holder.

    Cc: Jan Engelhardt
    Signed-off-by: Steven Whitehouse

    Steven Whitehouse
     

30 Aug, 2006

1 commit

19 May, 2006

1 commit

17 Jan, 2006

1 commit