[Bugs] [Bug 1220173] SEEK_HOLE support (optimization)

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1220173



--- Comment #179 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/11537 committed in master by Kaleb KEITHLEY
(kkeithle at redhat.com) 
------
commit ff12c4a83bb897501f6e10c1bfe3a69f3dc6cdb9
Author: Ravishankar N <ravishankar at redhat.com>
Date:   Wed Jul 1 08:28:07 2015 +0530

    fuse: update fuse_kernel.h to version 23

    The following changes were made upstream:
     - add FUSE_WRITEBACK_CACHE
     - add time_gran to fuse_init_out
     - add reserved space to fuse_init_out
     - add FATTR_CTIME
     - add ctime and ctimensec to fuse_setattr_in
     - add FUSE_RENAME2 request
     - add FUSE_NO_OPEN_SUPPORT flag

    Including these changes will make it easier to backport support for
    lseek().

    Because the fuse_init_out structure changed its size, older versions of
    FUSE would fail initializing. When an older version of FUSE is detected,
    the fuse_init_out structure is reduced to the previous size. This is
    harmless, as the attributes that are not passed, are not used for
    earlier versions anyway.

    BUG: 1220173
    Change-Id: I58c74e161638b2d4ce12fc91a206fdc1b96de14d
    Signed-off-by: Ravishankar N <ravishankar at redhat.com>
    [ndevos: splitted from http://review.gluster.org/11474
             old version fuse_init_out size correction]
    Reviewed-on: http://review.gluster.org/11537
    Smoke: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Kaleb KEITHLEY <kkeithle at redhat.com>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.com>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>

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