diff options
| -rw-r--r-- | fs/xfs/libxfs/xfs_btree.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index ecdd5ea27a03..aa60a46b8eec 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -1043,6 +1043,17 @@ xfs_btree_set_ptr_null( ptr->s = cpu_to_be32(NULLAGBLOCK); } +static inline bool +xfs_btree_ptrs_equal( + struct xfs_btree_cur *cur, + union xfs_btree_ptr *ptr1, + union xfs_btree_ptr *ptr2) +{ + if (cur->bc_ops->ptr_len == XFS_BTREE_LONG_PTR_LEN) + return ptr1->l == ptr2->l; + return ptr1->s == ptr2->s; +} + /* * Get/set/init sibling pointers */ @@ -4365,7 +4376,7 @@ xfs_btree_visit_block( { struct xfs_btree_block *block; struct xfs_buf *bp; - union xfs_btree_ptr rptr; + union xfs_btree_ptr rptr, bufptr; int error; /* do right sibling readahead */ @@ -4388,19 +4399,12 @@ xfs_btree_visit_block( * return the same block without checking if the right sibling points * back to us and creates a cyclic reference in the btree. */ - if (cur->bc_ops->ptr_len == XFS_BTREE_LONG_PTR_LEN) { - if (be64_to_cpu(rptr.l) == XFS_DADDR_TO_FSB(cur->bc_mp, - xfs_buf_daddr(bp))) { - xfs_btree_mark_sick(cur); - return -EFSCORRUPTED; - } - } else { - if (be32_to_cpu(rptr.s) == xfs_daddr_to_agbno(cur->bc_mp, - xfs_buf_daddr(bp))) { - xfs_btree_mark_sick(cur); - return -EFSCORRUPTED; - } + xfs_btree_buf_to_ptr(cur, bp, &bufptr); + if (xfs_btree_ptrs_equal(cur, &rptr, &bufptr)) { + xfs_btree_mark_sick(cur); + return -EFSCORRUPTED; } + return xfs_btree_lookup_get_block(cur, level, &rptr, &block); } |