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| author | Jisheng Zhang <jszhang@kernel.org> | 2024-03-25 19:10:37 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-04-24 12:57:48 -0700 |
| commit | eb1e5037294652ddf1437f62292c0727183f11ae (patch) | |
| tree | 721019ce93d3ea79aed7a71fdd8f3e5d8dd0ace8 /drivers/usb/cdns3/cdns3-pci-wrap.c | |
| parent | 6613476e225e090cc9aad49be7fa504e290dd33d (diff) | |
riscv: select ARCH_USE_CMPXCHG_LOCKREF
Select ARCH_USE_CMPXCHG_LOCKREF to enable the cmpxchg-based lockless
lockref implementation for riscv.
Using Linus' test case[1] on TH1520 platform, I see a 11.2% improvement.
On JH7110 platform, I see 12.0% improvement.
Link: http://marc.info/?l=linux-fsdevel&m=137782380714721&w=4 [1]
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Andrea Parri <parri.andrea@gmail.com>
Link: https://lore.kernel.org/r/20240325111038.1700-2-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-pci-wrap.c')
0 files changed, 0 insertions, 0 deletions