On Wed, 2008-01-23 at 09:05 -0800, Linus Torvalds wrote: > So here's even a patch to get you started. Do this: > > git revert 204ec841fbea3e5138168edbc3a76d46747cc987 > > and then use this appended patch on top of that as a starting point for > something that compiles and *possibly* works. > > And no, I do *not* guarantee that this is right either! I have not tested > it or thought about it a lot, and S390 tends to be odd about some of these > things. In particular, I actually suspect that we should possibly do this > the same way we do > > ptep_clear_flush_young() > > except we would do "ptep_clear_flush_wrprotect()". So even though this is > a revert plus a simple patch to make it compile again (we've changed how > we do dirty bits), I think a patch like this needs testing and other > people like Nick and Peter to ack it. > > Nick? Peter? Testing? Other comments?
It would need some addition piece to not call msync_interval() for MS_SYNC, and remove the balance_dirty_pages_ratelimited_nr() stuff. But yeah, this pte walker is much better. As for s390, I think they only differ on the dirty bit, and we should not be touching that. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
