cluster/dht: refactor dht_lookup

The dht lookup code is getting difficult to maintain
due to its size. Refactoring the code will make it
easier to modify it in future.

Change-Id: Ic7cb5bf4f018504dfaa7f0d48cf42ab0aa34abdd
updates: bz#1590385
Signed-off-by: N Balachandran <nbalacha@redhat.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/tests/basic/distribute/lookup.t b/tests/basic/distribute/lookup.t
new file mode 100644
index 00000000000..f757bd99fd9
--- /dev/null
+++ b/tests/basic/distribute/lookup.t
@@ -0,0 +1,54 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../nfs.rc
+. $(dirname $0)/../../common-utils.rc
+
+# Test overview:
+# Check that non-privileged users can also clean up stale linkto files
+#
+# 1. Use the current parallel-readdir behaviour of changing the DHT child subvols
+# in the graph to generate stale linkto files
+# 2. Access the file with the stale linkto file as a non-root user
+# 3. This should now succeed (returned EIO before commit 3fb1df7870e03c9de)
+
+cleanup
+
+TEST glusterd
+TEST pidof glusterd
+
+TEST $CLI volume create $V0 $H0:$B0/$V0-{1..3}
+TEST $CLI volume start $V0
+
+# Mount using FUSE and create a file
+TEST glusterfs -s $H0 --volfile-id $V0 $M0
+TEST glusterfs -s $H0 --volfile-id $V0 $M1
+
+ls $M0/FILE-1
+EXPECT "2" echo $?
+
+
+# Create a file and a directory on $M0
+TEST dd if=/dev/urandom of=$M0/FILE-1 count=1 bs=16k
+TEST mkdir $M0/dir1
+
+ls $M0/FILE-1
+EXPECT "0" echo $?
+
+ls $M0/dir1
+EXPECT "0" echo $?
+
+#Use a fresh mount so as to trigger a fresh lookup
+TEST glusterfs -s $H0 --volfile-id $V0 $M1
+
+TEST ls $M1/FILE-1
+EXPECT "0" echo $?
+
+
+ls $M1/dir1
+EXPECT "0" echo $?
+
+# Cleanup
+cleanup
+