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Merge tag 'bitmap-5.17-rc1' of git://github.com/norov/linux

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Pull bitmap updates from Yury Norov:

 - introduce for_each_set_bitrange()

 - use find_first_*_bit() instead of find_next_*_bit() where possible

 - unify for_each_bit() macros

* tag 'bitmap-5.17-rc1' of git://github.com/norov/linux:
  vsprintf: rework bitmap_list_string
  lib: bitmap: add performance test for bitmap_print_to_pagebuf
  bitmap: unify find_bit operations
  mm/percpu: micro-optimize pcpu_is_populated()
  Replace for_each_*_bit_from() with for_each_*_bit() where appropriate
  find: micro-optimize for_each_{set,clear}_bit()
  include/linux: move for_each_bit() macros from bitops.h to find.h
  cpumask: replace cpumask_next_* with cpumask_first_* where appropriate
  tools: sync tools/bitmap with mother linux
  all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate
  cpumask: use find_first_and_bit()
  lib: add find_first_and_bit()
  arch: remove GENERIC_FIND_FIRST_BIT entirely
  include: move find.h from asm_generic to linux
  bitops: move find_bit_*_le functions from le.h to find.h
  bitops: protect find_first_{,zero}_bit properly
This commit is contained in:
Linus Torvalds
2022-01-23 06:20:44 +02:00
parent 1c52283265 15325b4f76
commit 3689f9f8b0
73 changed files with 635 additions and 438 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
MAINTAINERS
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@@ -3410,14 +3410,14 @@ M: Yury Norov <yury.norov@gmail.com>
R: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
R: Rasmus Villemoes <linux@rasmusvillemoes.dk>
S: Maintained
F: include/asm-generic/bitops/find.h
F: include/linux/bitmap.h
F: include/linux/find.h
F: lib/bitmap.c
F: lib/find_bit.c
F: lib/find_bit_benchmark.c
F: lib/test_bitmap.c
F: tools/include/asm-generic/bitops/find.h
F: tools/include/linux/bitmap.h
F: tools/include/linux/find.h
F: tools/lib/bitmap.c
F: tools/lib/find_bit.c

2
arch/alpha/include/asm/bitops.h
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@@ -430,8 +430,6 @@ static inline unsigned int __arch_hweight8(unsigned int w)
#endif /* __KERNEL__ */
#include <asm-generic/bitops/find.h>
#ifdef __KERNEL__
/*

1
arch/arc/Kconfig
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@@ -20,7 +20,6 @@ config ARC
select COMMON_CLK
select DMA_DIRECT_REMAP
select GENERIC_ATOMIC64 if !ISA_ARCV2 || !(ARC_HAS_LL64 && ARC_HAS_LLSC)
select GENERIC_FIND_FIRST_BIT
# for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP
select GENERIC_IRQ_SHOW
select GENERIC_PCI_IOMAP

1
arch/arc/include/asm/bitops.h
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@@ -189,7 +189,6 @@ static inline __attribute__ ((const)) unsigned long __ffs(unsigned long x)
#include <asm-generic/bitops/atomic.h>
#include <asm-generic/bitops/non-atomic.h>
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/le.h>
#include <asm-generic/bitops/ext2-atomic-setbit.h>

1
arch/arm/include/asm/bitops.h
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@@ -264,7 +264,6 @@ static inline int find_next_bit_le(const void *p, int size, int offset)
#endif
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/le.h>
/*

1
arch/arm64/Kconfig
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@@ -120,7 +120,6 @@ config ARM64
select GENERIC_CPU_AUTOPROBE
select GENERIC_CPU_VULNERABILITIES
select GENERIC_EARLY_IOREMAP
select GENERIC_FIND_FIRST_BIT
select GENERIC_IDLE_POLL_SETUP
select GENERIC_IRQ_IPI
select GENERIC_IRQ_PROBE

1
arch/arm64/include/asm/bitops.h
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@@ -18,7 +18,6 @@
#include <asm-generic/bitops/ffz.h>
#include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/hweight.h>

1
arch/csky/include/asm/bitops.h
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@@ -59,7 +59,6 @@ static __always_inline unsigned long __fls(unsigned long x)
#include <asm-generic/bitops/ffz.h>
#include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/find.h>
#ifndef _LINUX_BITOPS_H
#error only <linux/bitops.h> can be included directly

1
arch/h8300/include/asm/bitops.h
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@@ -168,7 +168,6 @@ static inline unsigned long __ffs(unsigned long word)
return result;
}
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/lock.h>

1
arch/hexagon/include/asm/bitops.h
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@@ -271,7 +271,6 @@ static inline unsigned long __fls(unsigned long word)
}
#include <asm-generic/bitops/lock.h>
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/sched.h>

2
arch/ia64/include/asm/bitops.h
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@@ -441,8 +441,6 @@ static __inline__ unsigned long __arch_hweight64(unsigned long x)
#endif /* __KERNEL__ */
#include <asm-generic/bitops/find.h>
#ifdef __KERNEL__
#include <asm-generic/bitops/le.h>

2
arch/m68k/include/asm/bitops.h
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@@ -529,6 +529,4 @@ static inline int __fls(int x)
#include <asm-generic/bitops/le.h>
#endif /* __KERNEL__ */
#include <asm-generic/bitops/find.h>
#endif /* _M68K_BITOPS_H */

1
arch/mips/Kconfig
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@@ -32,7 +32,6 @@ config MIPS
select GENERIC_ATOMIC64 if !64BIT
select GENERIC_CMOS_UPDATE
select GENERIC_CPU_AUTOPROBE
select GENERIC_FIND_FIRST_BIT
select GENERIC_GETTIMEOFDAY
select GENERIC_IOMAP
select GENERIC_IRQ_PROBE

1
arch/mips/include/asm/bitops.h
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@@ -444,7 +444,6 @@ static inline int ffs(int word)
}
#include <asm-generic/bitops/ffz.h>
#include <asm-generic/bitops/find.h>
#ifdef __KERNEL__

1
arch/openrisc/include/asm/bitops.h
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@@ -30,7 +30,6 @@
#include <asm/bitops/fls.h>
#include <asm/bitops/__fls.h>
#include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/find.h>
#ifndef _LINUX_BITOPS_H
#error only <linux/bitops.h> can be included directly

1
arch/parisc/include/asm/bitops.h
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@@ -203,7 +203,6 @@ static __inline__ int fls(unsigned int x)
#include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/lock.h>
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/le.h>
#include <asm-generic/bitops/ext2-atomic-setbit.h>

2
arch/powerpc/include/asm/bitops.h
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@@ -328,8 +328,6 @@ unsigned long __arch_hweight64(__u64 w);
#include <asm-generic/bitops/hweight.h>
#endif
#include <asm-generic/bitops/find.h>
/* wrappers that deal with KASAN instrumentation */
#include <asm-generic/bitops/instrumented-atomic.h>
#include <asm-generic/bitops/instrumented-lock.h>

4
arch/powerpc/platforms/pasemi/dma_lib.c
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@@ -375,7 +375,7 @@ int pasemi_dma_alloc_flag(void)
int bit;
retry:
bit = find_next_bit(flags_free, MAX_FLAGS, 0);
bit = find_first_bit(flags_free, MAX_FLAGS);
if (bit >= MAX_FLAGS)
return -ENOSPC;
if (!test_and_clear_bit(bit, flags_free))
@@ -440,7 +440,7 @@ int pasemi_dma_alloc_fun(void)
int bit;
retry:
bit = find_next_bit(fun_free, MAX_FLAGS, 0);
bit = find_first_bit(fun_free, MAX_FLAGS);
if (bit >= MAX_FLAGS)
return -ENOSPC;
if (!test_and_clear_bit(bit, fun_free))

1
arch/riscv/include/asm/bitops.h
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@@ -20,7 +20,6 @@
#include <asm-generic/bitops/fls.h>
#include <asm-generic/bitops/__fls.h>
#include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/ffs.h>

1
arch/s390/Kconfig
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@@ -127,7 +127,6 @@ config S390
select GENERIC_CPU_AUTOPROBE
select GENERIC_CPU_VULNERABILITIES
select GENERIC_ENTRY
select GENERIC_FIND_FIRST_BIT
select GENERIC_GETTIMEOFDAY
select GENERIC_PTDUMP
select GENERIC_SMP_IDLE_THREAD

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