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authorLinus Torvalds <torvalds@linux-foundation.org>2024-07-26 09:50:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-07-26 09:50:36 -0700
commit51c4767503d5d3a5a0ae4dcb19b7f7cf38b40c6c (patch)
tree9fb9633115af3448c21496c176c6107e11a753c9 /include/linux
parent1722389b0d863056d78287a120a1d6cadb8d4f7b (diff)
parentfb9086e95ad84f14e4f4db97ed96422c74407830 (diff)
Merge tag 'bitmap-6.11-rc1' of https://github.com:/norov/linux
Pull bitmap updates from Yury Norov: "Random fixes" * tag 'bitmap-6.11-rc1' of https://github.com:/norov/linux: riscv: Remove unnecessary int cast in variable_fls() radix tree test suite: put definition of bitmap_clear() into lib/bitmap.c bitops: Add a comment explaining the double underscore macros lib: bitmap: add missing MODULE_DESCRIPTION() macros cpumask: introduce assign_cpu() macro
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/bitops.h5
-rw-r--r--include/linux/cpumask.h50
2 files changed, 12 insertions, 43 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 46d4bdc634c0..ba35bbf07798 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -47,12 +47,17 @@ extern unsigned long __sw_hweight64(__u64 w);
__builtin_constant_p(*(const unsigned long *)(addr))) ? \
const##op(nr, addr) : op(nr, addr))
+/*
+ * The following macros are non-atomic versions of their non-underscored
+ * counterparts.
+ */
#define __set_bit(nr, addr) bitop(___set_bit, nr, addr)
#define __clear_bit(nr, addr) bitop(___clear_bit, nr, addr)
#define __change_bit(nr, addr) bitop(___change_bit, nr, addr)
#define __test_and_set_bit(nr, addr) bitop(___test_and_set_bit, nr, addr)
#define __test_and_clear_bit(nr, addr) bitop(___test_and_clear_bit, nr, addr)
#define __test_and_change_bit(nr, addr) bitop(___test_and_change_bit, nr, addr)
+
#define test_bit(nr, addr) bitop(_test_bit, nr, addr)
#define test_bit_acquire(nr, addr) bitop(_test_bit_acquire, nr, addr)
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 099e8b32dd68..801a7e524113 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -1033,53 +1033,17 @@ void init_cpu_present(const struct cpumask *src);
void init_cpu_possible(const struct cpumask *src);
void init_cpu_online(const struct cpumask *src);
-static inline void
-set_cpu_possible(unsigned int cpu, bool possible)
-{
- if (possible)
- cpumask_set_cpu(cpu, &__cpu_possible_mask);
- else
- cpumask_clear_cpu(cpu, &__cpu_possible_mask);
-}
+#define assign_cpu(cpu, mask, val) \
+ assign_bit(cpumask_check(cpu), cpumask_bits(mask), (val))
-static inline void
-set_cpu_enabled(unsigned int cpu, bool can_be_onlined)
-{
- if (can_be_onlined)
- cpumask_set_cpu(cpu, &__cpu_enabled_mask);
- else
- cpumask_clear_cpu(cpu, &__cpu_enabled_mask);
-}
-
-static inline void
-set_cpu_present(unsigned int cpu, bool present)
-{
- if (present)
- cpumask_set_cpu(cpu, &__cpu_present_mask);
- else
- cpumask_clear_cpu(cpu, &__cpu_present_mask);
-}
+#define set_cpu_possible(cpu, possible) assign_cpu((cpu), &__cpu_possible_mask, (possible))
+#define set_cpu_enabled(cpu, enabled) assign_cpu((cpu), &__cpu_possible_mask, (enabled))
+#define set_cpu_present(cpu, present) assign_cpu((cpu), &__cpu_present_mask, (present))
+#define set_cpu_active(cpu, active) assign_cpu((cpu), &__cpu_active_mask, (active))
+#define set_cpu_dying(cpu, dying) assign_cpu((cpu), &__cpu_dying_mask, (dying))
void set_cpu_online(unsigned int cpu, bool online);
-static inline void
-set_cpu_active(unsigned int cpu, bool active)
-{
- if (active)
- cpumask_set_cpu(cpu, &__cpu_active_mask);
- else
- cpumask_clear_cpu(cpu, &__cpu_active_mask);
-}
-
-static inline void
-set_cpu_dying(unsigned int cpu, bool dying)
-{
- if (dying)
- cpumask_set_cpu(cpu, &__cpu_dying_mask);
- else
- cpumask_clear_cpu(cpu, &__cpu_dying_mask);
-}
-
/**
* to_cpumask - convert a NR_CPUS bitmap to a struct cpumask *
* @bitmap: the bitmap