features/gfid-access: Fix entry creation via setxattr for geo-rep

GEO-REP INTEROP WITH SHARD FEATURE

Problem:
    Geo-replication uses setxattr interface of gfid-access
    xlator to create entries and send explicit setattr
    after entry creation to set uid and gid. But between
    entry creation and setattr, the inode would not be
    linked. Hence operation which accesses inode structure
    during setattr by any the below xlator fails.

Solution:
    Linking inode would seem the obvious solution but,
    gfid-access xlator cannot link inodes and maintain
    it as it would result in same inode pointing
    to two different paths one being virtual .gfid/<gfid>
    path and other being actual path.

    The solution is to set uid and gid in frame->root->uid
    and frame->root->gid respectively from which posix
    extracts and sets.

Change-Id: Ic0749ee471432caeb8ded3152a07de6e64d8538d
BUG: 1265148
Signed-off-by: Kotresh HR <khiremat@redhat.com>
Reviewed-on: http://review.gluster.org/12206
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Aravinda VK <avishwan@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>

0 files changed, 0 insertions, 0 deletions