quick-read: refactor

- peel out 'open behind' functionality into a separate translator
- issue where, if file size had grown by revalidate, data was not flushed
- removed unnecessary acquistion of table->lock (e.g in qr_lookup())
- keep inode ctx persistent, prune only data (effectively changing the
  order of lock acquisition from INODE -> TABLE)
- validation with readdirplus
- use variable size iobufs to simply cached reads

Change-Id: If1586d0298fd1697ddff9fd7008efb3d286d436a
BUG: 846240
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/4403
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/tests/performance/quick-read.t b/tests/performance/quick-read.t
new file mode 100644
index 000000000..84bb7e66b
--- /dev/null
+++ b/tests/performance/quick-read.t
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume info;
+
+TEST $CLI volume create $V0 $H0:$B0/${V0}{1,2};
+
+TEST $CLI volume start $V0;
+
+## Mount FUSE
+TEST glusterfs -s $H0 --volfile-id $V0 $M0;
+
+TEST glusterfs -s $H0 --volfile-id $V0 $M1;
+
+D0="hello-this-is-a-test-message0";
+F0="test-file0";
+
+function write_to()
+{
+    local file="$1";
+    local data="$2";
+
+    echo "$data" > "$file";
+}
+
+
+TEST write_to "$M0/$F0" "$D0";
+EXPECT "$D0" cat $M1/$F0;
+
+TEST $CLI volume set $V0 performance.quick-read off;
+
+D1="hello-this-is-a-test-message1";
+F1="test-file1";
+
+TEST write_to "$M0/$F1" "$D1";
+EXPECT "$D1" cat $M1/$F1;
+
+EXPECT "$D0" cat $M1/$F0;
+
+cleanup;