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-rw-r--r--fs/nilfs2/the_nilfs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index ef40a510e2f3..2558f320b821 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -47,6 +47,7 @@ enum {
* @ns_flags: flags
* @ns_bdev: block device
* @ns_sem: semaphore for shared states
+ * @ns_snapshot_mount_mutex: mutex to protect snapshot mounts
* @ns_sbh: buffer heads of on-disk super blocks
* @ns_sbp: pointers to super block data
* @ns_sbwtime: previous write time of super block
@@ -100,6 +101,7 @@ struct the_nilfs {
struct block_device *ns_bdev;
struct rw_semaphore ns_sem;
+ struct mutex ns_snapshot_mount_mutex;
/*
* used for