On Wed, Feb 17, 2021 at 09:11:43PM +0000, Matthew Wilcox wrote: > On Wed, Feb 17, 2021 at 12:51:25PM -0800, Minchan Kim wrote: > > I'd like to avoid atomic operation if we could. > > Why do you think that the spinlock is better? > Michal suggested atomic_inc in writeside and atomic_read in readside. I wanted to avoid atomic operation in readside path. You are suggesting atomic for writeside and just read(not atomic_read) in readside?
