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| author | Huacai Chen <chenhuacai@loongson.cn> | 2022-08-06 09:19:33 +0200 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2022-08-12 07:10:11 +0200 |
| commit | dce6098b22d58e5b646b1c67174c53f5a6a05605 (patch) | |
| tree | 0658f8ef3b5efcf58a386100c02b1930bbd9eea0 /arch/loongarch/vdso/vdso.lds.S | |
| parent | LoongArch: Add PCI controller support (diff) | |
| download | linux-dce6098b22d58e5b646b1c67174c53f5a6a05605.tar.xz linux-dce6098b22d58e5b646b1c67174c53f5a6a05605.zip | |
LoongArch: Add vDSO syscall __vdso_getcpu()
We test 20 million times of getcpu(), the real syscall version take 25
seconds, while the vsyscall version take only 2.4 seconds.
Signed-off-by: Rui Wang <wangrui@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/vdso/vdso.lds.S')
| -rw-r--r-- | arch/loongarch/vdso/vdso.lds.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/loongarch/vdso/vdso.lds.S b/arch/loongarch/vdso/vdso.lds.S index 955f02de4a2d..56ad855896de 100644 --- a/arch/loongarch/vdso/vdso.lds.S +++ b/arch/loongarch/vdso/vdso.lds.S @@ -58,6 +58,7 @@ VERSION { LINUX_5.10 { global: + __vdso_getcpu; __vdso_clock_getres; __vdso_clock_gettime; __vdso_gettimeofday; |