[LTP] [PATCH] fsync02: multiply the timediff if test in VM

[Li Wang]

Similar to 59e73f2 ("clock_gettime04: multiply the
timediff if test in VM"), extend tolerance for this test too.

  fsync02.c:93: TFAIL: fsync took too long: 167.000000 seconds;
                max_block: 17768; data_blocks: 2287

Signed-off-by: Li Wang <liwang@redhat.com>
---
 testcases/kernel/syscalls/fsync/fsync02.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/testcases/kernel/syscalls/fsync/fsync02.c b/testcases/kernel/syscalls/fsync/fsync02.c
index fcdc14f89..e6704b3a5 100644
--- a/testcases/kernel/syscalls/fsync/fsync02.c
+++ b/testcases/kernel/syscalls/fsync/fsync02.c
@@ -21,13 +21,13 @@
 
 #define BLOCKSIZE 8192
 #define MAXBLKS 65536
-#define TIME_LIMIT 120
 #define BUF_SIZE 2048
 
 char tempfile[40] = "";
 char pbuf[BUF_SIZE];
 int fd;
 off_t max_blks = MAXBLKS;
+int time_limit = 120;
 
 struct statvfs stat_buf;
 
@@ -35,6 +35,11 @@ static void setup(void) {
 	/* free blocks avail to non-superuser */
 	unsigned long f_bavail;
 
+	if (tst_is_virt(VIRT_ANY)) {
+		tst_res(TINFO, "Running in a VM, multiply the time_limit by 2.");
+		time_limit *= 2;
+	}
+
 	fd = SAFE_OPEN("tempfile", O_RDWR | O_CREAT | O_TRUNC, 0777);
 
 	if (fstatvfs(fd, &stat_buf) != 0) {
@@ -89,7 +94,7 @@ static void run(void) {
 		"timer broken end %ld < start %ld",
 		time_end, time_start);
 	} else if ((time_delta =
-		difftime(time_end, time_start)) > TIME_LIMIT) {
+		difftime(time_end, time_start)) > time_limit) {
 		tst_res(TFAIL,
 		"fsync took too long: %lf seconds; "
 		"max_block: %d; data_blocks: %d",
-- 
2.31.1