posix: add sanity checks for removing the gfid symlink for directories

Backport of https://review.gluster.org/17945

...during mkdir and rmdir. Otherwise, during entry self-heal, the
directory could be left out without a .glusterfs symlink causing fops like
opendir, readdir to fail.  The only chance the missing symlink will be
created is when a fresh lookup comes on it.

Change-Id: I2e1cf1bce8962ea80187edd8f6d73e0a09cf9f8e
BUG: 1491966
Signed-off-by: Ravishankar N <ravishankar@redhat.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/tests/bugs/replicate/bug-1477169-entry-selfheal-rename.t b/tests/bugs/replicate/bug-1477169-entry-selfheal-rename.t
new file mode 100644
index 00000000000..465800b19da
--- /dev/null
+++ b/tests/bugs/replicate/bug-1477169-entry-selfheal-rename.t
@@ -0,0 +1,47 @@
+#!/bin/bash
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume create $V0 replica 3 $H0:$B0/${V0}{0,1,2}
+TEST $CLI volume start $V0
+
+TEST $GFS --volfile-id=$V0 --volfile-server=$H0 --attribute-timeout=0 --entry-timeout=0 $M0;
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status $V0 0
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status $V0 1
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status $V0 2
+
+TEST mkdir -p $M0/d1/dir $M0/d2
+gfid_d1=$(gf_get_gfid_xattr $B0/${V0}0/d1)
+gfid_d2=$(gf_get_gfid_xattr $B0/${V0}0/d2)
+gfid_dir=$(gf_get_gfid_xattr $B0/${V0}0/d1/dir)
+
+gfid_str_d1=$(gf_gfid_xattr_to_str $gfid_d1)
+gfid_str_d2=$(gf_gfid_xattr_to_str $gfid_d2)
+gfid_str_d3=$(gf_gfid_xattr_to_str $gfid_dir)
+
+# Kill 3rd brick and rename the dir from mount.
+TEST kill_brick $V0 $H0 $B0/${V0}2
+TEST mv $M0/d1/dir $M0/d2
+
+# Bring it back and trigger heal.
+TEST $CLI volume start $V0 force
+
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status $V0 2
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "Y" glustershd_up_status
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status_in_shd $V0 0
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status_in_shd $V0 1
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status_in_shd $V0 2
+
+TEST $CLI volume heal $V0
+EXPECT_WITHIN $HEAL_TIMEOUT "^0$" get_pending_heal_count $V0
+
+# Check that .glusterfs symlink for dir exists and points to d2/dir
+TEST linkname=$(readlink $B0/${V0}2/.glusterfs/${gfid_str_d3:0:2}/${gfid_str_d3:2:2}/$gfid_str_d3)
+EXPECT "dir" basename $linkname
+TEST parent_dir_gfid_str=$(echo $linkname|cut -d / -f5)
+EXPECT $gfid_str_d2 echo $parent_dir_gfid_str
+
+cleanup;