linux-kernel - [PATCH 4/4] bitmap: Use bitmap

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Date:   Sat,  2 Jul 2022 20:29:44 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     agk@...hat.com, snitzer@...nel.org, dm-devel@...hat.com,
        vneethv@...ux.ibm.com, oberpar@...ux.ibm.com, hca@...ux.ibm.com,
        gor@...ux.ibm.com, agordeev@...ux.ibm.com,
        borntraeger@...ux.ibm.com, svens@...ux.ibm.com,
        almaz.alexandrovich@...agon-software.com, yury.norov@...il.com,
        andriy.shevchenko@...ux.intel.com, linux@...musvillemoes.dk
Cc:     linux-s390@...r.kernel.org, ntfs3@...ts.linux.dev,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH 4/4] bitmap: Use bitmap_size()

Simplify code and take advantage of the new bitmap_size() function.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 include/linux/bitmap.h | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index f66fb98a4126..668b47c1e5de 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -243,21 +243,18 @@ extern int bitmap_print_list_to_buf(char *buf, const unsigned long *maskp,
 
 static inline void bitmap_zero(unsigned long *dst, unsigned int nbits)
 {
-	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
-	memset(dst, 0, len);
+	memset(dst, 0, bitmap_size(nbits));
 }
 
 static inline void bitmap_fill(unsigned long *dst, unsigned int nbits)
 {
-	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
-	memset(dst, 0xff, len);
+	memset(dst, 0xff, bitmap_size(nbits));
 }
 
 static inline void bitmap_copy(unsigned long *dst, const unsigned long *src,
 			unsigned int nbits)
 {
-	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
-	memcpy(dst, src, len);
+	memcpy(dst, src, bitmap_size(nbits));
 }
 
 /*
-- 
2.34.1