On Tue, Oct 15, 2013 at 01:43:17PM -0700, Andrew Morton wrote: > On Mon, 14 Oct 2013 13:36:59 -0400 Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> wrote: > > > Page table walker is widely used when you want to traverse page table > > tree and do some work for the entries (and pages pointed to by them.) > > This is a common operation, and keep the code clean and maintainable > > is important. Moreover this patchset introduces caller-specific walk > > control function which is helpful for us to newly introduce page table > > walker to some other users. Core change comes from patch 1, so please > > see it for how it's supposed to work. > > > > This patchset changes core code in mm/pagewalk.c at first in patch 1 and 2, > > and then updates all of current users to make the code cleaner in patch > > 3-9. Patch 10 changes the interface of hugetlb_entry(), I put it here to > > keep bisectability of the whole patchset. Patch 11 applies page table walker > > to a new user queue_pages_range(). > > Unfortunately this is very incompatible with pending changes in > fs/proc/task_mmu.c. Especially Kirill's "mm, thp: change > pmd_trans_huge_lock() to return taken lock". > > Stephen will be away for a couple more weeks so I'll get an mmotm > released and hopefully Thierry and Mark will scoop it up(?). > Alternatively, http://git.cmpxchg.org/?p=linux-mmots.git;a=summary is > up to date. > > Please take a look, decide what you think we should do? Hi Andrew, I haven't had the time to look at writing up the scripts to import the mmotm into the linux-next trees that I create. From what I understand, it might be unwise to just pull linux-mmots into linux-next because it isn't very well tested. Then again, increasing test coverage is one of the goals of linux-next. If you think it's safe to include linux-mmots in linux-next I can easily do that. Otherwise I'll see if I can resume work on the scripts I started to import the mmotm. Stephen has also provided the scripts that he used, but I haven't had much time to look at them in detail yet because of other things that have been keeping me busy. Thierry
Attachment:
pgp0T76Y8mVYv.pgp
Description: PGP signature