Commit f0bd95ea authored Oct 01, 2012 by Tsutomu Itoh Committed by Chris Mason Oct 09, 2012

Btrfs: confirmation of value is added before trace_btrfs_get_extent() is called



We should confirm the value of extent_map before calling
trace_btrfs_get_extent() because the value of extent_map has the
possibility of NULL.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>

parent 18ec90d6

fs/btrfs/inode.c

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -5505,6 +5505,7 @@ struct extent_map btrfs_get_extent(struct inode inode, struct page *page,
	write_unlock(&em_tree->lock);		write_unlock(&em_tree->lock);
	out:		out:

			if (em)
	trace_btrfs_get_extent(root, em);		trace_btrfs_get_extent(root, em);

	if (path)		if (path)