Once f2fs_stop_checkpoint makes f2fs as readonly, only /proc/mounts shows
RDONLY whereas /etc/mtab does not.

Signed-off-by: Jaegeuk Kim <[email protected]>
---
 lib/libf2fs.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/libf2fs.c b/lib/libf2fs.c
index d61eb85..5eb5c33 100644
--- a/lib/libf2fs.c
+++ b/lib/libf2fs.c
@@ -530,17 +530,17 @@ int f2fs_dev_is_umounted(struct f2fs_configuration *c)
        struct stat st_buf;
        int ret = 0;
 
-       ret = is_mounted(MOUNTED, c->device_name);
+       /*
+        * try with /proc/mounts fist to detect RDONLY.
+        * f2fs_stop_checkpoint makes RO in /proc/mounts while RW in /etc/mtab.
+        */
+       ret = is_mounted("/proc/mounts", c->device_name);
        if (ret) {
                MSG(0, "Info: Mounted device!\n");
                return -1;
        }
 
-       /*
-        * if failed due to /etc/mtab file not present
-        * try with /proc/mounts.
-        */
-       ret = is_mounted("/proc/mounts", c->device_name);
+       ret = is_mounted(MOUNTED, c->device_name);
        if (ret) {
                MSG(0, "Info: Mounted device!\n");
                return -1;
-- 
2.6.3


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