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| author | Christoph Hellwig <hch@infradead.org> | 2009-12-01 18:12:29 +0000 |
|---|---|---|
| committer | Alex Elder <aelder@sgi.com> | 2009-12-16 13:20:15 -0600 |
| commit | b44b1126279b60597f96bbe77507b1650f88a969 (patch) | |
| tree | 220cb8d4903532c2551ee2bdffa03885cdc642ba | |
| parent | 5ac4d630eb87656bd4dc313b910776d54d88ea28 (diff) | |
| download | lwn-b44b1126279b60597f96bbe77507b1650f88a969.tar.gz lwn-b44b1126279b60597f96bbe77507b1650f88a969.zip | |
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>
| -rw-r--r-- | fs/xfs/xfs_iget.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index f5c904a10c11..0de36c2a46f1 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -478,17 +478,21 @@ xfs_ireclaim( { 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); |