Btrfs: apply updated fallocate i_size fix

This version of the i_size fix for fallocate makes sure we only update the i_size when the current fallocate is really operating outside of i_size. Signed-off-by: Chris Mason <chris.mason@oracle.com>
mariux64 · Feb 4, 2010 · 23b5c50 · 23b5c50
1 parent efd049f
commit 23b5c50
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
@@ -5799,7 +5799,9 @@ static int prealloc_file_range(struct inode *inode, u64 start, u64 end,
 		inode->i_ctime = CURRENT_TIME;
 		BTRFS_I(inode)->flags |= BTRFS_INODE_PREALLOC;
 		if (!(mode & FALLOC_FL_KEEP_SIZE) &&
-		    cur_offset > inode->i_size) {
+			(actual_len > inode->i_size) &&
+			(cur_offset > inode->i_size)) {
+
 			if (cur_offset > actual_len)
 				i_size  = actual_len;
 			else