diff options
| author | Guo Ren <guoren@linux.alibaba.com> | 2020-01-30 17:04:19 +0000 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2020-03-03 10:28:10 -0800 |
| commit | ab70a73aa45beccab01cc0bb1d920361e3642393 (patch) | |
| tree | 0141b2e6ae2a2dd726e4d7867de6fbec6ad677d3 /arch/riscv | |
| parent | 98d54f81e36ba3bf92172791eba5ca5bd813989b (diff) | |
riscv: Use flush_icache_mm for flush_icache_user_range
The only call path is:
__access_remote_vm -> copy_to_user_page -> flush_icache_user_range
Seems it's ok to use flush_icache_mm instead of flush_icache_all and
it could reduce flush_icache_all called on other harts.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
[Palmer: git-am wouldn't apply the patch, I did so manually]
Fixes: 08f051eda33b ("RISC-V: Flush I$ when making a dirty page executable")
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/asm/cacheflush.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/include/asm/cacheflush.h b/arch/riscv/include/asm/cacheflush.h index 555b20b11dc3..c8677c75f82c 100644 --- a/arch/riscv/include/asm/cacheflush.h +++ b/arch/riscv/include/asm/cacheflush.h @@ -85,7 +85,7 @@ static inline void flush_dcache_page(struct page *page) * so instead we just flush the whole thing. */ #define flush_icache_range(start, end) flush_icache_all() -#define flush_icache_user_range(vma, pg, addr, len) flush_icache_all() +#define flush_icache_user_range(vma, pg, addr, len) flush_icache_mm(vma->vm_mm, 0) #ifndef CONFIG_SMP |