Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> writes: > Love the acronym, and the series looks good to me. > > Michael - can you check (or maybe you already did?) that this works > for ppc too, and doesn't have any gotcha's? Yeah it looks fine to me. I gave it a quick boot with a patch to count how many mb()s we actually issue in the spin_unlock() path and it's definitely hitting that path correctly. So it works at least as well as the old code. cheers