From e965e752d32d10d40891fe3daa000de9f686fca1 Mon Sep 17 00:00:00 2001 From: Nadav Amit Date: Fri, 9 Jul 2021 09:47:06 +0000 Subject: [PATCH] cpumask: Mark functions as pure mainline inclusion from mainline-v5.13-rc1 commit 291c4011dd7ac0cd0cebb727a75ee5a50d16dcf7 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I3ZV2C CVE: NA ------------------------------------------------- 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 Signed-off-by: Tong Tiangen Reviewed-by: Chen Wandun Signed-off-by: Zheng Zengkai --- include/linux/cpumask.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index f0d895d6ac39..0159986ac9ce 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -230,7 +230,7 @@ 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 @@ -247,8 +247,8 @@ 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); -- GitLab