From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: agk@redhat.com, snitzer@kernel.org, dm-devel@redhat.com,
vneethv@linux.ibm.com, oberpar@linux.ibm.com, hca@linux.ibm.com,
gor@linux.ibm.com, agordeev@linux.ibm.com,
borntraeger@linux.ibm.com, svens@linux.ibm.com,
almaz.alexandrovich@paragon-software.com, yury.norov@gmail.com,
andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk
Cc: linux-s390@vger.kernel.org, ntfs3@lists.linux.dev,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH 3/4] bitmap: Introduce bitmap_size()
Date: Sat, 2 Jul 2022 20:29:36 +0200 [thread overview]
Message-ID: <98f5d3d855a9c687ccc035edf62016b02a6876b7.1656785856.git.christophe.jaillet@wanadoo.fr> (raw)
In-Reply-To: <cover.1656785856.git.christophe.jaillet@wanadoo.fr>
The new bitmap_size() function returns the size, in bytes, of a bitmap.
Remove the already existing bitmap_size() functions and macro in some
files.
These files already use the bitmap API and will use the new function
in bitmap.h automatically.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/md/dm-clone-metadata.c | 5 -----
include/linux/bitmap.h | 6 ++++++
lib/math/prime_numbers.c | 2 --
3 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/md/dm-clone-metadata.c b/drivers/md/dm-clone-metadata.c
index c43d55672bce..47c1fa7aad8b 100644
--- a/drivers/md/dm-clone-metadata.c
+++ b/drivers/md/dm-clone-metadata.c
@@ -465,11 +465,6 @@ static void __destroy_persistent_data_structures(struct dm_clone_metadata *cmd)
/*---------------------------------------------------------------------------*/
-static size_t bitmap_size(unsigned long nr_bits)
-{
- return BITS_TO_LONGS(nr_bits) * sizeof(long);
-}
-
static int __dirty_map_init(struct dirty_map *dmap, unsigned long nr_words,
unsigned long nr_regions)
{
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index f091a1664bf1..f66fb98a4126 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -48,6 +48,7 @@ struct device;
* bitmap_equal(src1, src2, nbits) Are *src1 and *src2 equal?
* bitmap_intersects(src1, src2, nbits) Do *src1 and *src2 overlap?
* bitmap_subset(src1, src2, nbits) Is *src1 a subset of *src2?
+ * bitmap_size(nbits) Size, in bytes, of a bitmap
* bitmap_empty(src, nbits) Are all bits zero in *src?
* bitmap_full(src, nbits) Are all bits set in *src?
* bitmap_weight(src, nbits) Hamming Weight: number set bits
@@ -124,6 +125,11 @@ unsigned long *bitmap_alloc_node(unsigned int nbits, gfp_t flags, int node);
unsigned long *bitmap_zalloc_node(unsigned int nbits, gfp_t flags, int node);
void bitmap_free(const unsigned long *bitmap);
+static __always_inline size_t bitmap_size(unsigned long nbits)
+{
+ return BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+}
+
/* Managed variants of the above. */
unsigned long *devm_bitmap_alloc(struct device *dev,
unsigned int nbits, gfp_t flags);
diff --git a/lib/math/prime_numbers.c b/lib/math/prime_numbers.c
index d42cebf7407f..d3b64b10da1c 100644
--- a/lib/math/prime_numbers.c
+++ b/lib/math/prime_numbers.c
@@ -6,8 +6,6 @@
#include <linux/prime_numbers.h>
#include <linux/slab.h>
-#define bitmap_size(nbits) (BITS_TO_LONGS(nbits) * sizeof(unsigned long))
-
struct primes {
struct rcu_head rcu;
unsigned long last, sz;
--
2.34.1
next prev parent reply other threads:[~2022-07-02 18:37 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-02 18:28 [PATCH 0/4] Introduce bitmap_size() Christophe JAILLET
2022-07-02 18:29 ` [PATCH 1/4] s390/cio: Rename bitmap_size() as idset_bitmap_size() Christophe JAILLET
2022-07-02 18:54 ` Andy Shevchenko
2022-07-02 19:24 ` Christophe JAILLET
2022-07-02 19:32 ` Andy Shevchenko
2022-07-02 19:42 ` Christophe JAILLET
2022-07-02 20:46 ` Yury Norov
2022-07-04 4:28 ` Vineeth Vijayan
2022-07-02 18:29 ` [PATCH 2/4] fs/ntfs3: Rename bitmap_size() as ntfs3_bitmap_size() Christophe JAILLET
2022-07-02 18:58 ` Andy Shevchenko
2022-07-02 19:37 ` Christophe JAILLET
2022-07-02 20:57 ` Yury Norov
2022-07-02 18:29 ` Christophe JAILLET [this message]
2022-07-02 18:59 ` [PATCH 3/4] bitmap: Introduce bitmap_size() Andy Shevchenko
2022-07-02 21:09 ` Yury Norov
2022-07-03 6:50 ` Christophe JAILLET
2022-07-03 15:20 ` Andy Shevchenko
2022-07-03 19:13 ` Yury Norov
2022-07-03 20:41 ` Christophe JAILLET
2022-07-02 18:29 ` [PATCH 4/4] bitmap: Use bitmap_size() Christophe JAILLET
2022-07-02 20:44 ` [PATCH 0/4] Introduce bitmap_size() Yury Norov
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