[PATCH 1/2] RDMA/rtrs-clt: Use the bitmap API to allocate bitmaps

[Christophe JAILLET]

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

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
 drivers/infiniband/ulp/rtrs/rtrs-clt.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 9809c3883979..06c27a3d83f5 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -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;
-- 
2.34.1