worm: add check for internal processes in ftruncate()

The patch fixes the recently seen issues with worm_sh.t test.

RCA:

-
$ git log --oneline xlators/features/read-only/src/worm.c
1b01bdc worm: allow Self-heal-Daemon to perform some operations
c5a4a77 features/worm: Adding implementation for ftruncate
-

These two patches were merged in reverse order of their submission,
and hence the check added for internal processes got missed in
new fop 'ftruncate()'. The worm_sh.t passed the tests as while
that patch got submitted there was no ftruncate() in worm xlator.

Change-Id: I81a8a45fa2679917a2c859c4f5224a2c3edbc784
BUG: 1423413
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Reviewed-on: https://review.gluster.org/17048
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Zhou Zhengping <johnzzpcrystal@gmail.com>
Reviewed-by: David Spisla <david.spisla@iternity.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/xlators/features/read-only/src/worm.c b/xlators/features/read-only/src/worm.c
index 9a956ccd873..0f481ec766a 100644
--- a/xlators/features/read-only/src/worm.c
+++ b/xlators/features/read-only/src/worm.c
@@ -200,7 +200,7 @@ worm_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
         GF_ASSERT (priv);
         if (is_readonly_or_worm_enabled (this))
                 goto out;
-        if (!priv->worm_file) {
+        if (!priv->worm_file || (frame->root->pid < 0)) {
                 op_errno = 0;
                 goto out;
         }