On Sunday 17 January 2010, Benjamin Herrenschmidt wrote: > On Sun, 2010-01-17 at 14:27 +0100, Rafael J. Wysocki wrote: ... > However, it's hard to deal with the case of allocations that have > already started waiting for IOs. It might be possible to have some VM > hook to make them wakeup, re-evaluate the situation and get out of that > code path but in any case it would be tricky. In the second version of the patch I used an rwsem that made us wait for these allocations to complete before we changed gfp_allowed_mask. [This is kinda buggy in the version I sent, but I'm going to send an update in a minute.] Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
