posix: make sure atime and mtime are set when calling lutimes()

When overwriting an existing file with O_TRUNC, the 'atime' was set to
0, meaning the Epoch (01-Jan-1970 UTC). However, the 'mtime' gets
updated correcty.

In case 'atime' or 'mtime' is not passed in the 'struct iatt', the time
values passed to the systemcall are taken from the current values are
returned by lstat().

Change-Id: I7021b7161dcd6c9a3e515d98f6d4847533c434b3
BUG: 1401777
Reported-by: Eivind Sarto <eivindsarto@gmail.com>
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/16034
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/tests/bugs/nfs/zero-atime.t b/tests/bugs/nfs/zero-atime.t
new file mode 100755
index 00000000000..631240a692f
--- /dev/null
+++ b/tests/bugs/nfs/zero-atime.t
@@ -0,0 +1,31 @@
+#!/bin/bash
+#
+# posix_do_utimes() sets atime and mtime to the values in the passed IATT. If
+# not set, these values are 0 and cause a atime/mtime set to the Epoch.
+#
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../nfs.rc
+
+cleanup
+
+TEST glusterd
+TEST pidof glusterd
+
+TEST $CLI volume create $V0 $H0:$B0/$V0
+TEST $CLI volume set $V0 nfs.disable false
+TEST $CLI volume start $V0
+EXPECT_WITHIN $NFS_EXPORT_TIMEOUT "1" is_nfs_export_available;
+TEST mount_nfs $H0:/$V0 $N0 nolock
+
+# create a file for testing
+TEST dd if=/dev/urandom of=$M0/small count=1 bs=1024k
+
+# timezone in UTC results in atime=0 if not set correctly
+TEST TZ=UTC dd if=/dev/urandom of=$M0/small bs=64k count=1 conv=nocreat
+TEST [ "$(stat --format=%X $M0/small)" != "0" ]
+
+TEST rm $M0/small
+
+cleanup