glusterfs.git/tests/gfid2path, branch release-4.1

feature/posix: Enabled gfid2path by default

2017-08-29T12:52:46+00:00

Enable gfid2path feature by default. The basic
performance tests are carried out and it doesn't
show significant depreciation. The results are
updated in issue.

Updates: #139
Change-Id: I5f1949a608d0827018ef9d548d5d69f3bb7744fd
Signed-off-by: Kotresh HR 
Reviewed-on: https://review.gluster.org/17950
Smoke: Gluster Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Aravinda VK 
Reviewed-by: Amar Tumballi

tools/setgfid2path: Tool to set GFID to Path xattr in brick backend

2017-07-28T14:53:20+00:00

Once storage/gfid2path feature is enabled using `gluster volume set
 storage.gfid2path enable`, it starts recording the gfid2path
xattr on each files. But this feature will not add xattr to the existing
files.

This tool accepts the file path as argument and sets the necessary xattr
required for this feature.

Change-Id: I75ad82c86ce482950645e687ff2e33b413fa53da
Updates: #139
Signed-off-by: Aravinda VK 
Reviewed-on: https://review.gluster.org/17839
Smoke: Gluster Build System 
Reviewed-by: Niels de Vos 
Reviewed-by: Kotresh HR 
Tested-by: Kotresh HR 
CentOS-regression: Gluster Build System

storage/posix: Add virtual xattr to fetch path from gfid

2017-07-28T05:21:46+00:00

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.

Virtual xattr:
glusterfs.gfidtopath

getfattr -h -n glusterfs.gfidtopath //.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 
Reviewed-on: https://review.gluster.org/17785
Smoke: Gluster Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Krutika Dhananjay

posix/gfid2path: Block access to gfid2path xattr via mount

2017-07-24T13:05:48+00:00

gfid2path xattr is an internal xattr and should not be
allowed to modify by other applications via gluster
mount. This patch blocks the same.

Updates: #139
Change-Id: Id2cb29797ee1bd77e0e0d2203a47469fd7203355
Signed-off-by: Kotresh HR 
Reviewed-on: https://review.gluster.org/17744
Smoke: Gluster Build System 
Reviewed-by: Prashanth Pai 
Reviewed-by: Raghavendra Bhat 
Reviewed-by: Aravinda VK 
CentOS-regression: Gluster Build System

storage/posix: New gfid2path infra

2017-07-10T14:51:14+00:00

With this infra, a new xattr is stored on each entry
creation as below.

trusted.gfid2path. = /

If there are hardlinks, multiple xattrs would be present.

Fops which are impacted:
create, mknod, link, symlink, rename, unlink

Option to enable:
gluster vol set  storage.gfid2path on

Updates: #139
Change-Id: I369974cd16703c45ee87f82e6c2ff5a987a6cc6a
Signed-off-by: Kotresh HR 
Reviewed-on: https://review.gluster.org/17488
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Aravinda VK 
Reviewed-by: Amar Tumballi