glusterfs.git/xlators/features/snapview-client, branch v3.6.3beta2

features/uss: Perform NULL check on @name in svc_getxattr

2015-01-09T05:00:40+00:00

        Backport of: http://review.gluster.org/9378

LISTXATTR fop is internally converted into a GETXATTR with
the "name" parameter set to NULL. In svc_getxattr(), a listxattr
was causing a crash because of a NULL pointer dereference on @name.

FIX:
Add the necessary NULL check.

Change-Id: Ifb4ca2a45ecc78c384e92822403eaf2f1b573798
BUG: 1180070
Signed-off-by: Krutika Dhananjay 
Reviewed-on: http://review.gluster.org/9417
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra Bhat

features/snapview-client: handle fsync fop.

2015-01-08T09:41:52+00:00

Change-Id: Idaf46bd7497266af837789b09a0c62698f56ee4e
BUG: 1175749
Signed-off-by: Raghavendra Bhat 
Reviewed-on: http://review.gluster.org/9258
Tested-by: Gluster Build System 
Reviewed-by: Sachin Pandit 
Reviewed-by: Vijay Bellur 
Signed-off-by: Sachin Pandit 
Reviewed-on: http://review.gluster.org/9345

features/snapview-client: handle readdir requests differently for samba.

2015-01-08T09:41:20+00:00

* For samba export, the entry point is also added to the readdir response.

Change-Id: I825c017e0f16db1f1890bb56e086f36e6558a1c2
BUG: 1175742
Signed-off-by: Raghavendra Bhat 
Reviewed-on: http://review.gluster.org/9218
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur 
Signed-off-by: Sachin Pandit 
Reviewed-on: http://review.gluster.org/9344

uss: CIFS gives error while accessing .snaps directory.

2015-01-08T09:16:02+00:00

CIFS sends getxattr call while accessing .snaps directory.
snapview server should return ENODATA if getxattr is called
on .snaps folder. Also flush on .snaps folder should be handled.

Windows client sends and getxattr call on the parent folder
of .snaps with a special key to get the real filename of a file.
This is used by samba to do case insensitive check of files.

Fixed few FreeBSD compilation error.

bug: 1175742

Change-Id: I74d5cb4419568c8ed8709ba6d1ddff0e41392204
Signed-off-by: Rajesh Joseph 
Reviewed-on: http://review.gluster.org/9211
Reviewed-by: Raghavendra Bhat 
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur 
Signed-off-by: Sachin Pandit 
Reviewed-on: http://review.gluster.org/9341

gluster/uss: Handle notify in snapview-client

2014-12-24T15:03:23+00:00

As there are two subvolumes in snapview-client, there is
a possibility that the regular subvolume is still down and
snapd subvolume come up first. So if we don't handle this situation
CHILD_UP event will be propagated upwards to fuse when regular subvolume
is still down. This can cause data unavailable for the application

Change-Id: I9e5166ed22c2cf637c15db0457c2b57ca044078e
BUG: 1175738
Signed-off-by: vmallika 
Reviewed-on: http://review.gluster.org/9205
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur 
Signed-off-by: Sachin Pandit 
Reviewed-on: http://review.gluster.org/9310
Reviewed-by: Raghavendra Bhat

gluster/uss: Handle ESTALE in snapview client when NFS server restarted

2014-12-24T11:38:51+00:00

When NFS server is restarted inode-context is lost.
Nameless lookup will be sent to regular volume.
If the gfid is from virtual graph, lookup will fail
with ESTALE. We need to send a lookup to snapview server

Change-Id: I22920614f0d14cb90b53653fce95b6b70023eba6
BUG: 1175736
Signed-off-by: vmallika 
Reviewed-on: http://review.gluster.org/9153
Tested-by: Gluster Build System 
Reviewed-by: Sachin Pandit 
Reviewed-by: Vijay Bellur 
Signed-off-by: Sachin Pandit 
Reviewed-on: http://review.gluster.org/9309
Reviewed-by: Raghavendra Bhat

gluster/uss: Don't send failure when accessing snap with name same as entry-point name.

2014-12-24T11:37:31+00:00

In a scenario, if the snap name is same as the snap-directory than cd to
snaps/snaps fails.
Send a lookup to snap-view server instead of failing

Change-Id: Ie7b811815ff30961500592bbc8cdb514a9d76ef5
BUG: 1175733
Signed-off-by: vmallika 
Reviewed-on: http://review.gluster.org/9135
Tested-by: Gluster Build System 
Reviewed-by: Rajesh Joseph 
Reviewed-by: Avra Sengupta 
Reviewed-by: Krishnan Parthasarathi 
Tested-by: Krishnan Parthasarathi 
Signed-off-by: Sachin Pandit 
Reviewed-on: http://review.gluster.org/9306
Reviewed-by: Raghavendra Bhat

uss/gluster: creating file/directories inside .snaps should fail with EROFS.

2014-12-22T12:19:04+00:00

When an attempt is made to create file/directories inside .snaps, it
fails with wrong error message as "Stale file handle". It should fail
with "Read-only file system"

Change-Id: I3a812a0afc4762cbb71ab180b9394c866e576a66
BUG: 1175730
Signed-off-by: vmallika 
Reviewed-on: http://review.gluster.org/9039
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur 
Signed-off-by: Sachin Pandit 
Reviewed-on: http://review.gluster.org/9300
Reviewed-by: Raghavendra Bhat

USS : Decide the log entry based on the type of graph.

2014-12-16T13:37:59+00:00

Problem : When a lookup is issued, and if the entry is not found
then snapview-client will log failure stating that
"Lookup on normal graph failed with error Stale file handle"
irrespective of type of graph it received call back from.

Solution : Introduced a check to find out the graph from which
the snapview-client received call-back.

> Change-Id: Iadd5b525c394be3675d40231711058e1cf1396cd
> BUG: 1146479
> Signed-off-by: Sachin Pandit 
> Reviewed-on: http://review.gluster.org/8851
> Reviewed-by: Raghavendra Bhat 
> Tested-by: Gluster Build System 
> Reviewed-by: Vijay Bellur 
> Signed-off-by: Raghavendra Bhat 

Change-Id: I6971d3e2a44db14431205b4c14cffd86a79de51f
BUG: 1174639
Signed-off-by: Raghavendra Bhat 
Reviewed-on: http://review.gluster.org/9281
Tested-by: Gluster Build System 
Reviewed-by: Sachin Pandit

snapview-server: register a callback with glusterd to get

2014-09-18T17:59:30+00:00

 notifications

* As of now snapview-server is polling (sending rpc requests to glusterd) to
  get the latest list of snapshots at some regular time intervals
  (non configurable). Instead of that register a callback with glusterd so that
  glusterd sends notifications to snapd whenever a snapshot is created/deleted
  and snapview-server can configure itself.

rebase of the patch http://review.gluster.org/#/c/8150/

Change-Id: Iee2582b1a823d50c79233a41cf2106f458b40691
BUG: 1143961
Signed-off-by: Raghavendra Bhat 
Reviewed-on: http://review.gluster.org/8767
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur