Btrfs: set inode's logged_trans/last_log_commit after ranged fsync

[linux-2.6-block.git] / fs / btrfs / btrfs_inode.h

diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 43527fd78825b690503347426118e09f76017c95..56b8522d5767b5858928d4152c0ab64ca43886ca 100644 (file)
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -234,8 +234,17 @@ static inline int btrfs_inode_in_log(struct inode *inode, u64 generation)
            BTRFS_I(inode)->last_sub_trans <=
            BTRFS_I(inode)->last_log_commit &&
            BTRFS_I(inode)->last_sub_trans <=
-           BTRFS_I(inode)->root->last_log_commit)
-               return 1;
+           BTRFS_I(inode)->root->last_log_commit) {
+               /*
+                * After a ranged fsync we might have left some extent maps
+                * (that fall outside the fsync's range). So return false
+                * here if the list isn't empty, to make sure btrfs_log_inode()
+                * will be called and process those extent maps.
+                */
+               smp_mb();
+               if (list_empty(&BTRFS_I(inode)->extent_tree.modified_extents))
+                       return 1;
+       }
        return 0;
 }