Reviewed-by: Guo Ren <guoren@xxxxxxxxxx> On Wed, May 4, 2022 at 8:02 PM Heiko Stübner <heiko@xxxxxxxxx> wrote: > > Am Samstag, 30. April 2022, 17:36:24 CEST schrieb Palmer Dabbelt: > > From: Palmer Dabbelt <palmer@xxxxxxxxxxxx> > > > > Our existing spinlocks aren't fair and replacing them has been on the > > TODO list for a long time. This moves to the recently-introduced ticket > > spinlocks, which are simple enough that they are likely to be correct > > and fast on the vast majority of extant implementations. > > > > This introduces a horrible hack that allows us to split out the spinlock > > conversion from the rwlock conversion. We have to do the spinlocks > > first because qrwlock needs fair spinlocks, but we don't want to pollute > > the asm-generic code to support the generic spinlocks without qrwlocks. > > Thus we pollute the RISC-V code, but just until the next commit as it's > > all going away. > > > > Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx> > > on riscv64+riscv32 qemu, beaglev and d1-nezha > > Tested-by: Heiko Stuebner <heiko@xxxxxxxxx> > > -- Best Regards Guo Ren ML: https://lore.kernel.org/linux-csky/
