On Sun, Jun 26, 2016 at 10:13:32AM -0700, Linus Torvalds wrote: > On Sun, Jun 26, 2016 at 2:50 AM, Thorsten Leemhuis > <[email protected]> wrote: > > > > Al, what's the status here? This made it on my 4.7 regressions report > > due to the "regression" keyword in the subject. > > I don't think the tmpfs locking is going to get changed for 4.7. This > issue will likely only show up for some very specific microbenchmarks, > and the lockless next_positive one is likely too invasive for this > stage. So the problem is fixable, and not serious enough to worry > about for 4.7.
FWIW, #work.dcache_readdir in vfs.git seems to recover the performance. Not sure if it's worth pushing right now, but if it ends up the next cycle stuff, I think it'll be worth Cc:stable.
