cluster/stripe: Fix EINVAL errors on quota enabled volumes

Write operations on directories with quota enabled used to fail with
EINVAL on stripe volumes. This was due to assert failure in
stripe_lookup(), meant to ensure loc->path is not NULL. However,
in nameless lookup (in this particular case triggered by quotad, which
has stripe xlator in its graph), loc->path can be legitimately NULL.

The fix involves removing this check in stripe_lookup().

Change-Id: Ibbd4f68763fdd8a85f29da78b3937cef1ee4fd1e
BUG: 1100050
Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-on: http://review.gluster.org/8145
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
tests: attr/xattr.h doesn't exist without libattr-devel fix it

Use sys/xattr.h - glibc provided rather than external libs

Change-Id: Iacf80c1089f11a5a9b46d24e2a62e41fa0c4f5ae
BUG: 1084422
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/8146
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: M S Vishwanath Bhat <vbhat@redhat.com>
glusterd/snapshot : Logging the soft-limit reach warning and
hard-limit failure.

Change-Id: I5083d30c04c784b7f134b8a919b84c225c25f806
BUG: 1112085
Signed-off-by: Sachin Pandit <spandit@redhat.com>
Reviewed-on: http://review.gluster.org/8147
Reviewed-by: Prashanth Pai <ppai@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-by: Kaushal M <kaushal@redhat.com>
glusterd/snapshot: verify for lvm commands

On non-Linux platforms we need to verify the
run time availability of LVM specific commands
and fail accordingly with a message.

Change-Id: Ie1e3870648f01ee129e390e2240c66e0c6249b90
BUG: 1061685
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/8165
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Sachin Pandit <spandit@redhat.com>
dht: pass xdata to xlators above.

Change-Id: I96e9feb88443fcd7da40c33c0e8c4e2645b1fcf3
BUG: 1096047
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/7872
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Merge remote-tracking branch 'origin/master' into better-peer-identification