diff options
| author | Alexei Starovoitov <ast@kernel.org> | 2025-09-08 18:00:06 -0700 |
|---|---|---|
| committer | Vlastimil Babka <vbabka@suse.cz> | 2025-09-29 09:42:36 +0200 |
| commit | 7612833192d56af86061de8ab51989b75daf5b0d (patch) | |
| tree | 530bd3ff55eddd118db3c0eeafdd37f3e71591bf /mm/slub.c | |
| parent | 83382af9ddc3cb0ef43f67d049b461720ad785e6 (diff) | |
slab: Reuse first bit for OBJEXTS_ALLOC_FAIL
Since the combination of valid upper bits in slab->obj_exts with
OBJEXTS_ALLOC_FAIL bit can never happen,
use OBJEXTS_ALLOC_FAIL == (1ull << 0) as a magic sentinel
instead of (1ull << 2) to free up bit 2.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c index ee575ed9250f..189cd5aa4ac4 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2046,7 +2046,7 @@ static inline void handle_failed_objexts_alloc(unsigned long obj_exts, * objects with no tag reference. Mark all references in this * vector as empty to avoid warnings later on. */ - if (obj_exts & OBJEXTS_ALLOC_FAIL) { + if (obj_exts == OBJEXTS_ALLOC_FAIL) { unsigned int i; for (i = 0; i < objects; i++) |