1 files changed, 3 insertions, 1 deletions

diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index c9a24444ec9a..4794923c410c 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -279,9 +279,11 @@ static inline void btrfs_inode_block_unlocked_dio(struct inode *inode)
 
 static inline void btrfs_inode_resume_unlocked_dio(struct inode *inode)
 {
-        smp_mb__before_clear_bit();
+        smp_mb__before_atomic();
         clear_bit(BTRFS_INODE_READDIO_NEED_LOCK,
                   &BTRFS_I(inode)->runtime_flags);
 }
 
+bool btrfs_page_exists_in_range(struct inode *inode, loff_t start, loff_t end);
+
 #endif