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dm: use vmalloc_array() to simplify code 

Remove array_size() calls and replace vmalloc() with vmalloc_array() to
simplify the code.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Qianfeng Rong 2025-08-06 20:27:04 +08:00 committed by Mikulas Patocka
parent a3191475d1
commit c3797175b3
4 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/md/dm-cache-policy-smq.c
View File

@ -590,7 +590,7 @@ static int h_init(struct smq_hash_table *ht, struct entry_space *es, unsigned in
nr_buckets = roundup_pow_of_two(max(nr_entries / 4u, 16u));
ht->hash_bits = __ffs(nr_buckets);
ht->buckets = vmalloc(array_size(nr_buckets, sizeof(*ht->buckets)));
ht->buckets = vmalloc_array(nr_buckets, sizeof(*ht->buckets));
if (!ht->buckets)
return -ENOMEM;

2
drivers/md/dm-region-hash.c
View File

@ -206,7 +206,7 @@ struct dm_region_hash *dm_region_hash_create(
rh->shift = RH_HASH_SHIFT;
rh->prime = RH_HASH_MULT;
rh->buckets = vmalloc(array_size(nr_buckets, sizeof(*rh->buckets)));
rh->buckets = vmalloc_array(nr_buckets, sizeof(*rh->buckets));
if (!rh->buckets) {
DMERR("unable to allocate region hash bucket memory");
kfree(rh);

4
drivers/md/dm-switch.c
View File

@ -114,8 +114,8 @@ static int alloc_region_table(struct dm_target *ti, unsigned int nr_paths)
return -EINVAL;
}
sctx->region_table = vmalloc(array_size(nr_slots,
sizeof(region_table_slot_t)));
sctx->region_table = vmalloc_array(nr_slots,
sizeof(region_table_slot_t));
if (!sctx->region_table) {
ti->error = "Cannot allocate region table";
return -ENOMEM;

4
drivers/md/dm-thin.c
View File

@ -3031,8 +3031,8 @@ static struct pool *pool_create(struct mapped_device *pool_md,
}
pool->cell_sort_array =
vmalloc(array_size(CELL_SORT_ARRAY_SIZE,
sizeof(*pool->cell_sort_array)));
vmalloc_array(CELL_SORT_ARRAY_SIZE,
sizeof(*pool->cell_sort_array));
if (!pool->cell_sort_array) {
*error = "Error allocating cell sort array";
err_p = ERR_PTR(-ENOMEM);