diff options
| author | Maxime Ripard <mripard@kernel.org> | 2024-05-27 11:08:31 +0200 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2024-05-27 11:08:31 +0200 |
| commit | 375c4d1583948cf2439833e4a85d5a0aee853895 (patch) | |
| tree | 821f494e7df09af36887f710cfce1fb89600e666 /lib/sbitmap.c | |
| parent | 983095eaf6c161ef73d96152bfc1a99ca051cd57 (diff) | |
| parent | 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 (diff) | |
Merge drm/drm-next into drm-misc-next
Let's start the new release cycle.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'lib/sbitmap.c')
| -rw-r--r-- | lib/sbitmap.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/sbitmap.c b/lib/sbitmap.c index 92c6b1fd8989..1e453f825c05 100644 --- a/lib/sbitmap.c +++ b/lib/sbitmap.c @@ -494,18 +494,18 @@ unsigned long __sbitmap_queue_get_batch(struct sbitmap_queue *sbq, int nr_tags, struct sbitmap_word *map = &sb->map[index]; unsigned long get_mask; unsigned int map_depth = __map_depth(sb, index); + unsigned long val; sbitmap_deferred_clear(map); - if (map->word == (1UL << (map_depth - 1)) - 1) + val = READ_ONCE(map->word); + if (val == (1UL << (map_depth - 1)) - 1) goto next; - nr = find_first_zero_bit(&map->word, map_depth); + nr = find_first_zero_bit(&val, map_depth); if (nr + nr_tags <= map_depth) { atomic_long_t *ptr = (atomic_long_t *) &map->word; - unsigned long val; get_mask = ((1UL << nr_tags) - 1) << nr; - val = READ_ONCE(map->word); while (!atomic_long_try_cmpxchg(ptr, &val, get_mask | val)) ; |