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cpumask: Mark functions as pure

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cpumask_next_and() and cpumask_any_but() are pure, and marking them as
such seems to generate different and presumably better code for
native_flush_tlb_multi().

Signed-off-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20210220231712.2475218-8-namit@vmware.com
This commit is contained in:
Nadav Amit 2021-02-20 15:17:10 -08:00 committed by Ingo Molnar
parent 09c5272e48
commit 291c4011dd
1 changed files with 3 additions and 3 deletions
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6
include/linux/cpumask.h
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@ -235,7 +235,7 @@ static inline unsigned int cpumask_last(const struct cpumask *srcp)
return find_last_bit(cpumask_bits(srcp), nr_cpumask_bits);
}
unsigned int cpumask_next(int n, const struct cpumask *srcp);
unsigned int __pure cpumask_next(int n, const struct cpumask *srcp);
/**
* cpumask_next_zero - get the next unset cpu in a cpumask
@ -252,8 +252,8 @@ static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
}
int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
int cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
int __pure cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
int __pure cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
unsigned int cpumask_local_spread(unsigned int i, int node);
int cpumask_any_and_distribute(const struct cpumask *src1p,
const struct cpumask *src2p);