diff options
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 6dcee88c2e5d..39cb6591d37d 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -245,6 +245,7 @@ struct super_block *freeze_bdev(struct block_device *bdev) sb = get_active_super(bdev); if (!sb) goto out; + down_write(&sb->s_umount); if (sb->s_flags & MS_RDONLY) { sb->s_frozen = SB_FREEZE_TRANS; up_write(&sb->s_umount); |