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From: Yury Norov <yury.norov@gmail.com>
To: linux-kernel@vger.kernel.org, Yury Norov <yury.norov@gmail.com>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Subject: [PATCH v2 07/13] cpumask: use cpumask_next_wrap() where appropriate
Date: Tue, 28 Jan 2025 11:46:36 -0500	[thread overview]
Message-ID: <20250128164646.4009-8-yury.norov@gmail.com> (raw)
In-Reply-To: <20250128164646.4009-1-yury.norov@gmail.com>

Now that cpumask_next{_and}_wrap() is wired to generic
find_next_bit_wrap(), we can use it in cpumask_any{_and}_distribute().

This automatically makes the cpumask_*_distribute() functions to use
small_cpumask_bits instead of nr_cpumask_bits, which itself is a good
optimization.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
 lib/cpumask.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/cpumask.c b/lib/cpumask.c
index c9a9b451772a..d7cce2aaebc2 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -174,8 +174,7 @@ unsigned int cpumask_any_and_distribute(const struct cpumask *src1p,
 	/* NOTE: our first selection will skip 0. */
 	prev = __this_cpu_read(distribute_cpu_mask_prev);
 
-	next = find_next_and_bit_wrap(cpumask_bits(src1p), cpumask_bits(src2p),
-					nr_cpumask_bits, prev + 1);
+	next = cpumask_next_and_wrap(prev, src1p, src2p);
 	if (next < nr_cpu_ids)
 		__this_cpu_write(distribute_cpu_mask_prev, next);
 
@@ -195,7 +194,7 @@ unsigned int cpumask_any_distribute(const struct cpumask *srcp)
 
 	/* NOTE: our first selection will skip 0. */
 	prev = __this_cpu_read(distribute_cpu_mask_prev);
-	next = find_next_bit_wrap(cpumask_bits(srcp), nr_cpumask_bits, prev + 1);
+	next = cpumask_next_wrap(prev, srcp);
 	if (next < nr_cpu_ids)
 		__this_cpu_write(distribute_cpu_mask_prev, next);
 
-- 
2.43.0


  parent reply	other threads:[~2025-01-28 16:47 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-28 16:46 [PATCH v2 00/13] cpumask: cleanup cpumask_next_wrap() implementation and usage Yury Norov
2025-01-28 16:46 ` [PATCH v2 01/13] objpool: rework objpool_pop() Yury Norov
2025-01-28 16:46 ` [PATCH v2 02/13] virtio_net: simplify virtnet_set_affinity() Yury Norov
2025-02-05 23:00   ` Nick Child
2025-02-11 13:55     ` Yury Norov
2025-01-28 16:46 ` [PATCH v2 03/13] ibmvnic: simplify ibmvnic_set_queue_affinity() Yury Norov
2025-02-05 23:10   ` Nick Child
2025-01-28 16:46 ` [PATCH v2 04/13] powerpc/xmon: simplify xmon_batch_next_cpu() Yury Norov
2025-01-28 16:46 ` [PATCH v2 05/13] cpumask: deprecate cpumask_next_wrap() Yury Norov
2025-01-28 16:46 ` [PATCH v2 06/13] cpumask: re-introduce cpumask_next{,_and}_wrap() Yury Norov
2025-01-28 16:46 ` Yury Norov [this message]
2025-01-28 16:46 ` [PATCH v2 08/13] padata: switch padata_find_next() to using cpumask_next_wrap() Yury Norov
2025-01-28 16:46 ` [PATCH v2 09/13] s390: switch stop_machine_yield() " Yury Norov
2025-01-28 16:46 ` Yury Norov
2025-01-28 16:46 ` [PATCH v2 11/13] scsi: lpfc: rework lpfc_next_{online,present}_cpu() Yury Norov
2025-01-28 16:46 ` [PATCH v2 12/13] PCI: hv: Switch hv_compose_multi_msi_req_get_cpu() to using cpumask_next_wrap() Yury Norov
2025-01-28 16:46 ` [PATCH v2 13/13] cpumask: drop cpumask_next_wrap_old() Yury Norov
2025-02-24 21:18 ` [PATCH v2 00/13] cpumask: cleanup cpumask_next_wrap() implementation and usage Michael S. Tsirkin

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