nilfs2: add helper to get if volume is in a valid state

This adds a helper function, nilfs_valid_fs() which returns if nilfs
is in a valid state or not.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>

1 files changed, 1 insertions, 5 deletions

diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index aea2b58ba03b..890a8d3886cf 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -261,16 +261,12 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
         struct nilfs_recovery_info ri;
         unsigned int s_flags = sbi->s_super->s_flags;
         int really_read_only = bdev_read_only(nilfs->ns_bdev);
-        unsigned valid_fs;
+        int valid_fs = nilfs_valid_fs(nilfs);
         int err;
 
         if (nilfs_loaded(nilfs))
                 return 0;
 
-        down_write(&nilfs->ns_sem);
-        valid_fs = (nilfs->ns_mount_state & NILFS_VALID_FS);
-        up_write(&nilfs->ns_sem);
-
         if (!valid_fs) {
                 printk(KERN_WARNING "NILFS warning: mounting unchecked fs\n");
                 if (s_flags & MS_RDONLY) {