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Message-Id: <4b6493bfee4f1c2d30193df01e67052922703b95.1656961396.git.christophe.jaillet@wanadoo.fr>
Date: Mon, 4 Jul 2022 21:03:27 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
Christophe JAILLET <christophe.jaillet@...adoo.fr>,
linux-mips@...r.kernel.org
Subject: [PATCH] MIPS: mm: Use the bitmap API to allocate bitmaps
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
It is less verbose and it improves the semantic.
While at it, turn a bitmap_clear() into an equivalent bitmap_zero(). It is
also less verbose.
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
arch/mips/mm/context.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/mips/mm/context.c b/arch/mips/mm/context.c
index b25564090939..966f40066f03 100644
--- a/arch/mips/mm/context.c
+++ b/arch/mips/mm/context.c
@@ -67,7 +67,7 @@ static void flush_context(void)
int cpu;
/* Update the list of reserved MMIDs and the MMID bitmap */
- bitmap_clear(mmid_map, 0, num_mmids);
+ bitmap_zero(mmid_map, num_mmids);
/* Reserve an MMID for kmap/wired entries */
__set_bit(MMID_KERNEL_WIRED, mmid_map);
@@ -277,8 +277,7 @@ static int mmid_init(void)
WARN_ON(num_mmids <= num_possible_cpus());
atomic64_set(&mmid_version, asid_first_version(0));
- mmid_map = kcalloc(BITS_TO_LONGS(num_mmids), sizeof(*mmid_map),
- GFP_KERNEL);
+ mmid_map = bitmap_zalloc(num_mmids, GFP_KERNEL);
if (!mmid_map)
panic("Failed to allocate bitmap for %u MMIDs\n", num_mmids);
--
2.34.1
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