From: Qian Yingjin <qian@ddn.com>
Date: Thu, 27 May 2021 07:52:29 +0000 (+0800)
Subject: EX-3191 pcc: add test for mmap | write | detach racer
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=b6239369798122073702862416fa10006f8fbb56;p=fs%2Flustre-release.git

EX-3191 pcc: add test for mmap | write | detach racer

This patch adds the mmap racer among: (write | read | mmap_cat |
detach | unlink).

Signed-off-by: Qian Yingjin <qian@ddn.com>
Change-Id: I5db160851a95937275fea6ae32f40dcd0fe69f46
Reviewed-on: https://review.whamcloud.com/43842
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Li Xi <lixi@ddn.com>
---

diff --git a/lustre/tests/sanity-pcc.sh b/lustre/tests/sanity-pcc.sh
index b01dd7f..1d858fc 100644
--- a/lustre/tests/sanity-pcc.sh
+++ b/lustre/tests/sanity-pcc.sh
@@ -3302,6 +3302,87 @@ test_41() {
 }
 run_test 41 "Test mtime rule for PCC-RO open attach with O_RDONLY mode"
 
+test_99() {
+	local loopfile="$TMP/$tfile"
+	local mntpt="/mnt/pcc.$tdir"
+	local hsm_root="$mntpt/$tdir"
+	local file=$DIR/$tfile
+
+	setup_loopdev $SINGLEAGT $loopfile $mntpt 60
+	do_facet $SINGLEAGT mkdir $hsm_root || error "mkdir $hsm_root failed"
+	setup_pcc_mapping $SINGLEAGT \
+		"projid={0}\ roid=$HSM_ARCHIVE_NUMBER\ ropcc=1"
+	do_facet $SINGLEAGT $LCTL pcc list $MOUNT
+
+	do_facet $SINGLEAGT dd if=/dev/zero of=$file bs=1M count=50 ||
+		error "Write $file failed"
+
+	local rpid
+	local rpid2
+	local wpid
+	local upid
+	local dpid
+	local lpcc_path
+
+	lpcc_path=$(lpcc_fid2path $hsm_root $file)
+	(
+		while [ ! -e $DIR/sanity-pcc.42.lck ]; do
+			do_facet $SINGLEAGT dd if=/dev/zero of=$file bs=1M count=50 conv=notrunc ||
+				error "failed to write $file"
+			sleep 0.$((RANDOM % 4 + 1))
+		done
+	)&
+	wpid=$!
+
+	(
+		while [ ! -e $DIR/sanity-pcc.42.lck ]; do
+			do_facet $SINGLEAGT dd if=$file of=/dev/null bs=1M count=50 ||
+				error "failed to write $file"
+			sleep 0.$((RANDOM % 4 + 1))
+		done
+	)&
+	rpid=$!
+
+	(
+		while [ ! -e $DIR/sanity-pcc.42.lck ]; do
+			do_facet $SINGLEAGT $MMAP_CAT $file > /dev/null ||
+				error "failed to mmap_cat $file"
+			sleep 0.$((RANDOM % 4 + 1))
+		done
+	)&
+	rpid2=$!
+
+	(
+		while [ ! -e $DIR/sanity-pcc.42.lck ]; do
+			echo "Unlink $lpcc_path"
+			do_facet $SINGLEAGT unlink $lpcc_path
+			sleep 1
+		done
+		true
+	)&
+	upid=$!
+
+	(
+		while [ ! -e $DIR/sanity-pcc.42.lck ]; do
+			echo "Detach $file ..."
+			do_facet $SINGLEAGT $LFS pcc detach $file
+			sleep 0.$((RANDOM % 8 + 1))
+		done
+	)&
+	dpid=$!
+
+	sleep 60
+	touch $DIR/sanity-pcc.42.lck
+	wait $wpid || error "$?: write failed"
+	wait $rpid || error "$?: read failed"
+	wait $rpid2 || error "$?: read2 failed"
+	wait $upid || error "$?: unlink failed"
+	wait $dpid || error "$?: detach failed"
+
+	do_facet $SINGLEAGT $LFS pcc detach $file
+}
+run_test 99 "race among unlink | mmap read | write | detach for PCC-RO file"
+
 test_100() {
 	local loopfile="$TMP/$tfile"
 	local mntpt="/mnt/pcc.$tdir"