features/locks: fcntl(3) on F_GETLK must return first conflicting lock

- Added test program, getlk_owner.c to capture the bug when regressed.

Change-Id: Ic2a0f6fa8d094c0f2e9f4a6febd278d4a2948223
BUG: 869724
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/4164
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/tests/bugs/bug-869724.t b/tests/bugs/bug-869724.t
new file mode 100644
index 000000000..6dfc4060d
--- /dev/null
+++ b/tests/bugs/bug-869724.t
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+
+cleanup;
+
+
+## Start and create a volume
+TEST glusterd
+TEST pidof glusterd
+
+TEST $CLI volume create $V0 $H0:$B0/${V0}1;
+
+function volinfo_field()
+{
+    local vol=$1;
+    local field=$2;
+
+    $CLI volume info $vol | grep "^$field: " | sed 's/.*: //';
+}
+
+
+## Verify volume is is created
+EXPECT "$V0" volinfo_field $V0 'Volume Name';
+EXPECT 'Created' volinfo_field $V0 'Status';
+
+
+## Start volume and verify
+TEST $CLI volume start $V0;
+EXPECT 'Started' volinfo_field $V0 'Status';
+
+
+## Make volume tightly consistent for metdata
+TEST $CLI volume set $V0 performance.stat-prefetch off;
+
+## Mount FUSE with caching disabled
+TEST glusterfs --entry-timeout=0 --attribute-timeout=0 -s $H0 --volfile-id $V0 $M0;
+
+function cleanup_tester ()
+{
+    local exe=$1
+    rm -f $exe
+}
+
+function build_tester ()
+{
+    local cfile=$1
+    local fname=$(basename "$cfile")
+    local ext="${fname##*.}"
+    local execname="${fname%.*}"
+    gcc -g -o $(dirname $cfile)/$execname $cfile
+}
+
+touch $M0/test;
+build_tester $(dirname $0)/getlk_owner.c
+
+TEST $(dirname $0)/getlk_owner $M0/test;
+
+rm -f $(dirname $0)/getlk_owner
+cleanup;
+