Am Samstag, 30. April 2022, 17:36:20 CEST schrieb Palmer Dabbelt: > From: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > > This is a simple, fair spinlock. Specifically it doesn't have all the > subtle memory model dependencies that qspinlock has, which makes it more > suitable for simple systems as it is more likely to be correct. It is > implemented entirely in terms of standard atomics and thus works fine > without any arch-specific code. > > This replaces the existing asm-generic/spinlock.h, which just errored > out on SMP systems. > > Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> > Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx> on riscv64+riscv32 qemu, beaglev and d1-nezha Tested-by: Heiko Stuebner <heiko@xxxxxxxxx>
