From: Nadav Amit Date: Sat, 20 Feb 2021 23:17:10 +0000 (-0800) Subject: cpumask: Mark functions as pure X-Git-Tag: v5.13-rc1~95^2~4 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=291c4011dd7ac0cd0cebb727a75ee5a50d16dcf7;p=thirdparty%2Fkernel%2Flinux.git cpumask: Mark functions as pure 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 Signed-off-by: Ingo Molnar Reviewed-by: Dave Hansen Link: https://lore.kernel.org/r/20210220231712.2475218-8-namit@vmware.com --- diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 383684e30f123..c53364c4296dc 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -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);