diff options
author | Christoph Hellwig <hch@lst.de> | 2024-02-22 23:40:54 +0300 |
---|---|---|
committer | Darrick J. Wong <djwong@kernel.org> | 2024-02-22 23:40:54 +0300 |
commit | 57982d6c835a71da5c66e6090680de1adf6e736a (patch) | |
tree | 157c8a269cc3e8b84b3089690922c32e7c25cb3e /fs/xfs/libxfs | |
parent | fb0793f206701a68f8588a09bf32f7cf44878ea3 (diff) | |
download | linux-57982d6c835a71da5c66e6090680de1adf6e736a.tar.xz |
xfs: consolidate btree ptr checking
Merge xfs_btree_check_sptr and xfs_btree_check_lptr into a single
__xfs_btree_check_ptr that can be shared between xfs_btree_check_ptr
and the scrub code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/libxfs')
-rw-r--r-- | fs/xfs/libxfs/xfs_btree.c | 60 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_btree.h | 21 |
2 files changed, 32 insertions, 49 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index fc877188919e..1a0816aa5009 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -242,28 +242,27 @@ xfs_btree_check_block( return xfs_btree_check_sblock(cur, block, level, bp); } -/* Check that this long pointer is valid and points within the fs. */ -bool -xfs_btree_check_lptr( - struct xfs_btree_cur *cur, - xfs_fsblock_t fsbno, - int level) +int +__xfs_btree_check_ptr( + struct xfs_btree_cur *cur, + const union xfs_btree_ptr *ptr, + int index, + int level) { if (level <= 0) - return false; - return xfs_verify_fsbno(cur->bc_mp, fsbno); -} + return -EFSCORRUPTED; -/* Check that this short pointer is valid and points within the AG. */ -bool -xfs_btree_check_sptr( - struct xfs_btree_cur *cur, - xfs_agblock_t agbno, - int level) -{ - if (level <= 0) - return false; - return xfs_verify_agbno(cur->bc_ag.pag, agbno); + if (cur->bc_ops->ptr_len == XFS_BTREE_LONG_PTR_LEN) { + if (!xfs_verify_fsbno(cur->bc_mp, + be64_to_cpu((&ptr->l)[index]))) + return -EFSCORRUPTED; + } else { + if (!xfs_verify_agbno(cur->bc_ag.pag, + be32_to_cpu((&ptr->s)[index]))) + return -EFSCORRUPTED; + } + + return 0; } /* @@ -277,27 +276,26 @@ xfs_btree_check_ptr( int index, int level) { - if (cur->bc_ops->ptr_len == XFS_BTREE_LONG_PTR_LEN) { - if (xfs_btree_check_lptr(cur, be64_to_cpu((&ptr->l)[index]), - level)) - return 0; - xfs_err(cur->bc_mp, + int error; + + error = __xfs_btree_check_ptr(cur, ptr, index, level); + if (error) { + if (cur->bc_ops->ptr_len == XFS_BTREE_LONG_PTR_LEN) { + xfs_err(cur->bc_mp, "Inode %llu fork %d: Corrupt %sbt pointer at level %d index %d.", cur->bc_ino.ip->i_ino, cur->bc_ino.whichfork, cur->bc_ops->name, level, index); - } else { - if (xfs_btree_check_sptr(cur, be32_to_cpu((&ptr->s)[index]), - level)) - return 0; - xfs_err(cur->bc_mp, + } else { + xfs_err(cur->bc_mp, "AG %u: Corrupt %sbt pointer at level %d index %d.", cur->bc_ag.pag->pag_agno, cur->bc_ops->name, level, index); + } + xfs_btree_mark_sick(cur); } - xfs_btree_mark_sick(cur); - return -EFSCORRUPTED; + return error; } #ifdef DEBUG diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h index 9a264ffee303..ca4a305eb071 100644 --- a/fs/xfs/libxfs/xfs_btree.h +++ b/fs/xfs/libxfs/xfs_btree.h @@ -343,6 +343,9 @@ xfs_failaddr_t __xfs_btree_check_lblock(struct xfs_btree_cur *cur, xfs_failaddr_t __xfs_btree_check_sblock(struct xfs_btree_cur *cur, struct xfs_btree_block *block, int level, struct xfs_buf *bp); +int __xfs_btree_check_ptr(struct xfs_btree_cur *cur, + const union xfs_btree_ptr *ptr, int index, int level); + /* * Check that block header is ok. */ @@ -354,24 +357,6 @@ xfs_btree_check_block( struct xfs_buf *bp); /* buffer containing block, if any */ /* - * Check that (long) pointer is ok. - */ -bool /* error (0 or EFSCORRUPTED) */ -xfs_btree_check_lptr( - struct xfs_btree_cur *cur, /* btree cursor */ - xfs_fsblock_t fsbno, /* btree block disk address */ - int level); /* btree block level */ - -/* - * Check that (short) pointer is ok. - */ -bool /* error (0 or EFSCORRUPTED) */ -xfs_btree_check_sptr( - struct xfs_btree_cur *cur, /* btree cursor */ - xfs_agblock_t agbno, /* btree block disk address */ - int level); /* btree block level */ - -/* * Delete the btree cursor. */ void |