Commit c309df07 authored by Chris Mason's avatar Chris Mason
Browse files

Btrfs: return -ENOMEM in clear_extent_bit 



The btrfs releasepage function depends on ENOMEM coming
back when it is called atomic.

Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent 4cb5300b

fs/btrfs/extent_io.c

+2 −1
Original line number Diff line number Diff line
@@ -485,7 +485,8 @@ int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, 
again:

	if (!prealloc && (mask & __GFP_WAIT)) {

		prealloc = alloc_extent_state(mask);

		BUG_ON(!prealloc);

		if (!prealloc)

			return -ENOMEM;

	}



	spin_lock(&tree->lock);