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Jisheng Zhang 186355454e 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>
2023-11-29 23:46:21 +08:00
..
alpha
Linux_SDK_V0.9.5
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arc
Linux_SDK_V0.9.5
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arm
Linux_SDK_V0.9.5
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arm64
Linux_SDK_V0.9.5
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c6x
Linux_SDK_V0.9.5
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csky
Linux_SDK_V0.9.5
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h8300
Linux_SDK_V0.9.5
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hexagon
Linux_SDK_V0.9.5
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ia64
Linux_SDK_V0.9.5
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m68k
Linux_SDK_V0.9.5
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microblaze
Linux_SDK_V0.9.5
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mips
Linux_SDK_V0.9.5
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nds32
Linux_SDK_V0.9.5
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nios2
Linux_SDK_V0.9.5
2022-09-13 11:05:52 +08:00
openrisc
Linux_SDK_V0.9.5
2022-09-13 11:05:52 +08:00
parisc
Linux_SDK_V0.9.5
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powerpc
Linux_SDK_V0.9.5
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riscv
riscv: select ARCH_USE_CMPXCHG_LOCKREF
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s390
Linux_SDK_V0.9.5
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sh
Linux_SDK_V0.9.5
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sparc
Linux_SDK_V0.9.5
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um
Linux_SDK_V0.9.5
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x86
Linux_SDK_V0.9.5
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xtensa
Linux_SDK_V0.9.5
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.gitignore
Linux_SDK_V0.9.5
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Kconfig
Linux_SDK_V0.9.5
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