From 85ae01098c1a6a8e3ce908f8808f2d8f8effdbe3 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Sun, 3 Jun 2018 16:10:12 -0700 Subject: [PATCH] xfs: don't assert when on-disk btree pointers are garbage Don't ASSERT when we encounter bad on-disk btree pointers in the debug check functions. Log the error to leave breadcrumbs and let the upper layers deal with it. Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner --- fs/xfs/libxfs/xfs_btree.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-) diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 3fcddfeaa662..4f83d7949a21 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -246,16 +246,25 @@ xfs_btree_check_ptr( int level) { if (cur->bc_flags & XFS_BTREE_LONG_PTRS) { - XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, - xfs_btree_check_lptr(cur, - be64_to_cpu((&ptr->l)[index]), level)); + if (xfs_btree_check_lptr(cur, be64_to_cpu((&ptr->l)[index]), + level)) + return 0; + xfs_err(cur->bc_mp, +"Inode %llu fork %d: Corrupt btree %d pointer at level %d index %d.", + cur->bc_private.b.ip->i_ino, + cur->bc_private.b.whichfork, cur->bc_btnum, + level, index); } else { - XFS_WANT_CORRUPTED_RETURN(cur->bc_mp, - xfs_btree_check_sptr(cur, - be32_to_cpu((&ptr->s)[index]), level)); + if (xfs_btree_check_sptr(cur, be32_to_cpu((&ptr->s)[index]), + level)) + return 0; + xfs_err(cur->bc_mp, +"AG %u: Corrupt btree %d pointer at level %d index %d.", + cur->bc_private.a.agno, cur->bc_btnum, + level, index); } - return 0; + return -EFSCORRUPTED; } #ifdef DEBUG -- GitLab