1 files changed, 10 insertions, 0 deletions

diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index 20abd55881e0..589786e33464 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -258,6 +258,16 @@ static inline void nilfs_put_sbinfo(struct nilfs_sb_info *sbi)
                 kfree(sbi);
 }
 
+static inline int nilfs_valid_fs(struct the_nilfs *nilfs)
+{
+        unsigned valid_fs;
+
+        down_read(&nilfs->ns_sem);
+        valid_fs = (nilfs->ns_mount_state & NILFS_VALID_FS);
+        up_read(&nilfs->ns_sem);
+        return valid_fs;
+}
+
 static inline void
 nilfs_get_segment_range(struct the_nilfs *nilfs, __u64 segnum,
                         sector_t *seg_start, sector_t *seg_end)