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RDMA/rtrs-clt: Use the bitmap API to allocate bitmaps

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Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

Link: https://lore.kernel.org/r/ca9c5c8301d76d60de34640568b3db0d4401d050.1657298747.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Christophe JAILLET 2022-07-08 18:47:27 +02:00 committed by Leon Romanovsky
parent b577ea54ac
commit e471eedd94
1 changed files with 3 additions and 4 deletions
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7
drivers/infiniband/ulp/rtrs/rtrs-clt.c
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@ -1403,8 +1403,7 @@ static int alloc_permits(struct rtrs_clt_sess *clt)
unsigned int chunk_bits;
int err, i;
clt->permits_map = kcalloc(BITS_TO_LONGS(clt->queue_depth),
sizeof(long), GFP_KERNEL);
clt->permits_map = bitmap_zalloc(clt->queue_depth, GFP_KERNEL);
if (!clt->permits_map) {
err = -ENOMEM;
goto out_err;
@ -1426,7 +1425,7 @@ static int alloc_permits(struct rtrs_clt_sess *clt)
return 0;
err_map:
kfree(clt->permits_map);
bitmap_free(clt->permits_map);
clt->permits_map = NULL;
out_err:
return err;
@ -1440,7 +1439,7 @@ static void free_permits(struct rtrs_clt_sess *clt)
wait_event(clt->permits_wait,
find_first_bit(clt->permits_map, sz) >= sz);
}
kfree(clt->permits_map);
bitmap_free(clt->permits_map);
clt->permits_map = NULL;
kfree(clt->permits);
clt->permits = NULL;