[patch] fix inode leak in xfs_iget_core()

[David Chinner <dgc@sgi.com>]

If the radix_tree_preload() fails, we need to destroy the
inode we just read in before trying again. This could leak
xfs_vnode structures when there is memory pressure. Noticed
by Christoph Hellwig.

Signed-off-by: Dave Chinner <dgc@sgi.com>
---
 fs/xfs/xfs_iget.c |    1 +
 1 file changed, 1 insertion(+)

Index: 2.6.x-xfs-new/fs/xfs/xfs_iget.c
===================================================================
--- 2.6.x-xfs-new.orig/fs/xfs/xfs_iget.c	2008-02-15 19:27:02.000000000 +1100
+++ 2.6.x-xfs-new/fs/xfs/xfs_iget.c	2008-02-23 16:51:31.602711856 +1100
@@ -232,6 +232,7 @@ finish_inode:
 	 * write spinlock.
 	 */
 	if (radix_tree_preload(GFP_KERNEL)) {
+		xfs_idestroy(ip);
 		delay(1);
 		goto again;
 	}