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authorKotresh HR <khiremat@redhat.com>2017-07-16 15:16:56 -0400
committerKrutika Dhananjay <kdhananj@redhat.com>2017-07-28 05:21:46 +0000
commitab2558a3e7a1b2de2d63a3812ab4ed58d10d8619 (patch)
tree8f0baa0697c37abd5a113334e6452138d8a7a5c0 /libglusterfs
parent1477fa442a733d7b1a5ea74884cac8f29fbe7e6a (diff)
storage/posix: Add virtual xattr to fetch path from gfid
The gfid2path infra stores the "pargfid/bname" as on xattr value for each non directory entry. Hardlinks would have a separate xattr. This xattr key is internal and is not exposed to applications. A virtual xattr is exposed for the applications to fetch the path from gfid. Internal xattr: trusted.gfid2path.<xxhash> Virtual xattr: glusterfs.gfidtopath getfattr -h -n glusterfs.gfidtopath /<aux-mnt>/.gfid/<gfid> If there are hardlinks, it returns all the paths separated by ':'. A volume set option is introduced to change the delimiter to required string of max length 7. gluster vol set gfid2path-separator ":::" Updates: #139 Change-Id: Ie3b0c3fd8bd5333c4a27410011e608333918c02a Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: https://review.gluster.org/17785 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Diffstat (limited to 'libglusterfs')
-rw-r--r--libglusterfs/src/glusterfs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h
index fd659293504..bb925c3d78d 100644
--- a/libglusterfs/src/glusterfs.h
+++ b/libglusterfs/src/glusterfs.h
@@ -121,6 +121,7 @@
#define GF_XATTR_LINKINFO_KEY "trusted.distribute.linkinfo"
#define GFID_XATTR_KEY "trusted.gfid"
#define PGFID_XATTR_KEY_PREFIX "trusted.pgfid."
+#define GFID2PATH_VIRT_XATTR_KEY "glusterfs.gfidtopath"
#define GFID2PATH_XATTR_KEY_PREFIX "trusted.gfid2path."
#define GFID2PATH_XATTR_KEY_PREFIX_LENGTH 18
#define VIRTUAL_GFID_XATTR_KEY_STR "glusterfs.gfid.string"