riscv: Optimize switch_mm by passing "cpu" to flush_icache_deferred()

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Directly passing the cpu to flush_icache_deferred() rather than calling
smp_processor_id() again.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
[Palmer: drop the QEMU performance numbers, and update the comment]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

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Jisheng Zhang 2021-05-12 01:42:31 +08:00 • committed by Palmer Dabbelt

parent 50bae95e17

commit 8237c5243a

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1 changed files with 4 additions and 3 deletions

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arch/riscv/mm/context.c

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