LU-1512 oi: reuse idle OI blocks

[fs/lustre-release.git] / lustre / tests / sanity.sh

diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
index cb0a589..e37c7f3 100644 (file)
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -9565,6 +9565,46 @@ test_227() {
 }
 run_test 227 "running truncated executable does not cause OOM"
 
+# LU-1512 try to reuse idle OI blocks
+test_228() {
+       [ "$FSTYPE" != "ldiskfs" ] && skip "non-ldiskfs backend" && return
+
+       local MDT_DEV=$(mdsdevname ${SINGLEMDS//mds/})
+       local myDIR=$DIR/$tdir
+
+       mkdir -p $myDIR
+       #define OBD_FAIL_SEQ_EXHAUST             0x1002
+       $LCTL set_param fail_loc=0x80001002
+       createmany -o $myDIR/t- 10000
+       $LCTL set_param fail_loc=0
+       # The guard is current the largest FID holder
+       touch $myDIR/guard
+       local SEQ=$($LFS path2fid $myDIR/guard | awk -F ':' '{print $1}' |
+                   tr -d '[')
+       local IDX=$(($SEQ % 64))
+
+       do_facet $SINGLEMDS sync
+       # Make sure journal flushed.
+       sleep 6
+       local blk1=$(do_facet $SINGLEMDS \
+                    "$DEBUGFS -c -R \\\"stat oi.16.${IDX}\\\" $MDT_DEV" |
+                    grep Blockcount | awk '{print $4}')
+
+       # Remove old files, some OI blocks will become idle.
+       unlinkmany $myDIR/t- 10000
+       # Create new files, idle OI blocks should be reused.
+       createmany -o $myDIR/t- 2000
+       do_facet $SINGLEMDS sync
+       # Make sure journal flushed.
+       sleep 6
+       local blk2=$(do_facet $SINGLEMDS \
+                    "$DEBUGFS -c -R \\\"stat oi.16.${IDX}\\\" $MDT_DEV" |
+                    grep Blockcount | awk '{print $4}')
+
+       [ $blk1 == $blk2 ] || error "old blk1=$blk1, new blk2=$blk2, unmatched!"
+}
+run_test 228 "try to reuse idle OI blocks"
+
 #
 # tests that do cleanup/setup should be run at the end
 #