kernel.git/arch/csky/include/asm/spinlock.h, branch linux-5.18.yHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-5.18.y2021-01-12T01:52:40Zcsky: Cleanup asm/spinlock.h2021-01-12T01:52:40ZGuo Ren2020-12-20T08:12:45Zurn:sha1:8e35ac734fe2a1a225143d6375f9678f1850585c
There are two implementation of spinlock in arch/csky:
- simple one (NR_CPU = 1,2)
- tick's one (NR_CPU = 3,4)
Remove the simple one.
There is already smp_mb in spinlock, so remove the definition of
smp_mb__after_spinlock.
Link: https://lore.kernel.org/linux-csky/20200807081253.GD2674@hirez.programming.kicks-ass.net/#t
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Peter Zijlstra <peterz@infradead.org>k
Cc: Arnd Bergmann <arnd@arndb.de>
csky: Atomic operations2018-10-25T16:54:23ZGuo Ren2018-09-05T06:25:16Zurn:sha1:a0ae62806ff495b60235cc4f2fee3f3ab6a265c9
This patch adds atomic, cmpxchg, spinlock files.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Andrea Parri <andrea.parri@amarulasolutions.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Peter Zijlstra <peterz@infradead.org>