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LoongArch: Select HAVE_CMPXCHG_LOCAL in Kconfig

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LoongArch has already implemented cmpxchg_local(), this_cpu_cmpxchg()
and similar functions, so select HAVE_CMPXCHG_LOCAL in Kconfig to avoid
incurring the overhead of local_irq_save()/local_irq_restore() for page
state helpers in mm/vmstat.c.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Huacai Chen 2026-02-10 19:31:06 +08:00
parent 05f7e89ab9
commit 07d5798aad
1 changed files with 1 additions and 0 deletions
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arch/loongarch/Kconfig
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@ -130,6 +130,7 @@ config LOONGARCH
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select HAVE_ARCH_USERFAULTFD_MINOR if USERFAULTFD
select HAVE_ASM_MODVERSIONS
select HAVE_CMPXCHG_LOCAL
select HAVE_CONTEXT_TRACKING_USER
select HAVE_C_RECORDMCOUNT
select HAVE_DEBUG_KMEMLEAK