diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2019-11-06 08:47:09 -0800 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-11-11 12:42:52 -0800 |
| commit | 27d9ee577dccec94fb0fc1a14728de64db342f86 (patch) | |
| tree | 44111aca40050ec36ddc897f00f78dcd68181f5a /fs/xfs/libxfs/xfs_btree.c | |
| parent | 23220fe260c4b307da1c1fa82a944c50bf0742e4 (diff) | |
| download | linux-27d9ee577dccec94fb0fc1a14728de64db342f86.tar.bz2 | |
xfs: actually check xfs_btree_check_block return in xfs_btree_islastblock
Coverity points out that xfs_btree_islastblock doesn't check the return
value of xfs_btree_check_block. Since the question "Does the cursor
point to the last block in this level?" only makes sense if the caller
previously performed a lookup or seek operation, the block should
already have been checked.
Therefore, check the return value in an ASSERT and turn the whole thing
into a static inline predicate.
Coverity-id: 114069
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_btree.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_btree.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 98843f1258b8..1fd4850c0181 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -717,25 +717,6 @@ xfs_btree_get_bufs( } /* - * Check for the cursor referring to the last block at the given level. - */ -int /* 1=is last block, 0=not last block */ -xfs_btree_islastblock( - xfs_btree_cur_t *cur, /* btree cursor */ - int level) /* level to check */ -{ - struct xfs_btree_block *block; /* generic btree block pointer */ - xfs_buf_t *bp; /* buffer containing block */ - - block = xfs_btree_get_block(cur, level, &bp); - xfs_btree_check_block(cur, block, level, bp); - if (cur->bc_flags & XFS_BTREE_LONG_PTRS) - return block->bb_u.l.bb_rightsib == cpu_to_be64(NULLFSBLOCK); - else - return block->bb_u.s.bb_rightsib == cpu_to_be32(NULLAGBLOCK); -} - -/* * Change the cursor to point to the first record at the given level. * Other levels are unaffected. */ |