diff options
| author | Fedor Pchelkin <pchelkin@ispras.ru> | 2025-07-02 12:39:31 +0300 |
|---|---|---|
| committer | Carlos Maiolino <cem@kernel.org> | 2025-07-24 17:30:13 +0200 |
| commit | 734b871d6cf7d4f815bb1eff8c808289079701c2 (patch) | |
| tree | 11d916228cc945bab039b3f789297618b8c93db9 /fs/xfs/libxfs/xfs_alloc_btree.c | |
| parent | 3b583adf55c649d5ba37bcd1ca87644b0bc10b86 (diff) | |
xfs: refactor cmp_key_with_cur routines to take advantage of cmp_int()
The net value of these functions is to determine the result of a
three-way-comparison between operands of the same type.
Simplify the code using cmp_int() to eliminate potential errors with
opencoded casts and subtractions. This also means we can change the return
value type of cmp_key_with_cur routines from int64_t to int and make the
interface a bit clearer.
Found by Linux Verification Center (linuxtesting.org).
Suggested-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
Diffstat (limited to 'fs/xfs/libxfs/xfs_alloc_btree.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_alloc_btree.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c index f371f1b32cfb..fa1f03c1331e 100644 --- a/fs/xfs/libxfs/xfs_alloc_btree.c +++ b/fs/xfs/libxfs/xfs_alloc_btree.c @@ -186,7 +186,7 @@ xfs_allocbt_init_ptr_from_cur( ptr->s = agf->agf_cnt_root; } -STATIC int64_t +STATIC int xfs_bnobt_cmp_key_with_cur( struct xfs_btree_cur *cur, const union xfs_btree_key *key) @@ -194,23 +194,20 @@ xfs_bnobt_cmp_key_with_cur( struct xfs_alloc_rec_incore *rec = &cur->bc_rec.a; const struct xfs_alloc_rec *kp = &key->alloc; - return (int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock; + return cmp_int(be32_to_cpu(kp->ar_startblock), + rec->ar_startblock); } -STATIC int64_t +STATIC int xfs_cntbt_cmp_key_with_cur( struct xfs_btree_cur *cur, const union xfs_btree_key *key) { struct xfs_alloc_rec_incore *rec = &cur->bc_rec.a; const struct xfs_alloc_rec *kp = &key->alloc; - int64_t diff; - - diff = (int64_t)be32_to_cpu(kp->ar_blockcount) - rec->ar_blockcount; - if (diff) - return diff; - return (int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock; + return cmp_int(be32_to_cpu(kp->ar_blockcount), rec->ar_blockcount) ?: + cmp_int(be32_to_cpu(kp->ar_startblock), rec->ar_startblock); } STATIC int |