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| author | Huacai Chen <chenhuacai@loongson.cn> | 2026-02-10 19:31:06 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2026-02-10 19:31:06 +0800 |
| commit | 07d5798aadfa922af1f81bf7fe4a1746a7e6d184 (patch) | |
| tree | 8469d12c6f7a5bd5f6e4905e212ab6df10a33052 /arch | |
| parent | 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b (diff) | |
LoongArch: Select HAVE_CMPXCHG_LOCAL in Kconfig
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/loongarch/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 730f34214519..ae9d954aa052 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -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 |