xfs: check for not fully initialized inodes in xfs_ireclaim
Add an assert for inodes not added to the inode cache in xfs_ireclaim,
to make sure we're not going to introduce something like the
famous nfsd inode cache bug again.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index f5c904a..0de36c2 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -478,17 +478,21 @@
{
struct xfs_mount *mp = ip->i_mount;
struct xfs_perag *pag;
+ xfs_agino_t agino = XFS_INO_TO_AGINO(mp, ip->i_ino);
XFS_STATS_INC(xs_ig_reclaims);
/*
- * Remove the inode from the per-AG radix tree. It doesn't matter
- * if it was never added to it because radix_tree_delete can deal
- * with that case just fine.
+ * Remove the inode from the per-AG radix tree.
+ *
+ * Because radix_tree_delete won't complain even if the item was never
+ * added to the tree assert that it's been there before to catch
+ * problems with the inode life time early on.
*/
pag = xfs_get_perag(mp, ip->i_ino);
write_lock(&pag->pag_ici_lock);
- radix_tree_delete(&pag->pag_ici_root, XFS_INO_TO_AGINO(mp, ip->i_ino));
+ if (!radix_tree_delete(&pag->pag_ici_root, agino))
+ ASSERT(0);
write_unlock(&pag->pag_ici_lock);
xfs_put_perag(mp, pag);