[LTP] [PATCH v1] readahead02.c fixes: use tst_parse_filesize() so that we can pass sizes with units e.g. -s 128M

[coolgw]

Signed-off-by: WEI GAO <wegao@suse.com>
---
 testcases/kernel/syscalls/readahead/readahead02.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/testcases/kernel/syscalls/readahead/readahead02.c b/testcases/kernel/syscalls/readahead/readahead02.c
index 3ed88c005..c282b4d68 100644
--- a/testcases/kernel/syscalls/readahead/readahead02.c
+++ b/testcases/kernel/syscalls/readahead/readahead02.c
@@ -367,8 +367,8 @@ static void setup_readahead_length(void)
 
 static void setup(void)
 {
-	if (opt_fsizestr) {
-		testfile_size = SAFE_STRTOL(opt_fsizestr, 1, INT_MAX);
+        if (tst_parse_filesize(opt_fsizestr, &testfile_size, 1, INT_MAX)) {
+		tst_brk(TBROK, "invalid initial filesize '%s'", opt_fsizestr);
 		tst_set_max_runtime(1 + testfile_size / (DEFAULT_FILESIZE/32));
 	}
 
-- 
2.35.3