f2fs_io: add OSYNC option

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index abb655a..70a077a 100644 (file)
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -424,6 +424,7 @@ static void do_fallocate(int argc, char **argv, const struct cmd_desc *cmd)
 "IO can be\n"                                          \
 "  buffered : buffered IO\n"                           \
 "  dio      : direct IO\n"                             \
+"  osync    : O_SYNC\n"                                        \
 
 static void do_write(int argc, char **argv, const struct cmd_desc *cmd)
 {
@@ -460,6 +461,8 @@ static void do_write(int argc, char **argv, const struct cmd_desc *cmd)
 
        if (!strcmp(argv[5], "dio"))
                flags |= O_DIRECT;
+       else if (!strcmp(argv[5], "osync"))
+               flags |= O_SYNC;
        else if (strcmp(argv[5], "buffered"))
                die("Wrong IO type");