On 08/01/2011 04:39 AM, Benjamin Herrenschmidt wrote: > On Mon, 2011-08-01 at 11:59 +0200, Peter Zijlstra wrote: >>> Signed-off-by: David Ahern <dsah...@gmail.com> >>> CC: Benjamin Herrenschmidt <b...@kernel.crashing.org> >>> CC: Anton Blanchard <an...@samba.org> >> >> Hmm, Paul, didn't you fix something like this early on? Anyway, I've >> no >> objections since I'm really not familiar enough with the PPC side of >> things. > > I'm travelling so I haven't had a chance to review properly or even test > but it looks like an ad-hoc fix for the immediate problem. > > Ultimately, I want to rework that stuff to do a __gup_fast like x86 does > (maybe as a fallback from an attempt at access first) so we work around > access permissions blocked by lack of dirty/accessed bits but in the > meantime, this should fix the immediate issue.
The problem goes back to all kernel releases with perf, so this patch should get applied to the stable trains too. David > > Cheers, > Ben. > > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
