[Bugs] [Bug 1316099] AFR+SNAPSHOT: File with hard link have different inode number in USS

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1316099



--- Comment #2 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/13656 committed in release-3.7 by Rajesh
Joseph (rjoseph at redhat.com) 
------
commit ed4feadc8c60fce1d8d99e0732351b92230d6321
Author: vmallika <vmallika at redhat.com>
Date:   Wed Feb 10 06:39:22 2016 +0530

    uss/gluster: generate gfid for snapshot files from snapname and gfid

    This is a backport of http://review.gluster.org/#/c/9255/

    If 'a' and 'b' are hardlinks, we need to generate a virtual
    gfid for these files so that the inode number for 'a' and 'b'
    are same.

    Generate gfid as below:
    gfid_of_a = MD5(snapname + back_end_gfid(a))
    if '/dir1/a' and '/dir2/b' are hardlinks, then inode number should be
    same for
    all below files:
    /mnt/.snaps/snap1/dir1/a
    /mnt/.snaps/snap1/dir2/b
    /mnt/dir1/.snaps/snap1/a
    /mnt/dir2/.snaps/snap1/b

    > Change-Id: Ifda793455610e554f3f1e4cbb90d44c02cda4b0f
    > BUG: 1171703
    > Signed-off-by: vmallika <vmallika at redhat.com>

    Change-Id: I917b2fe2915d88f69700bc8c3283e9c613e13bb8
    BUG: 1316099
    Signed-off-by: vmallika <vmallika at redhat.com>
    Reviewed-on: http://review.gluster.org/13656
    Smoke: Gluster Build System <jenkins at build.gluster.com>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Rajesh Joseph <rjoseph at redhat.com>

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