From: Christoph Hellwig Date: Tue, 1 Dec 2009 18:12:29 +0000 (+0000) Subject: xfs: check for not fully initialized inodes in xfs_ireclaim X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b44b1126279b60597f96bbe77507b1650f88a969;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git 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 Signed-off-by: Alex Elder --- diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index f5c904a10c1..0de36c2a46f 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);