On Wed, 2018-03-14 at 20:56 +0100, Thomas Gleixner wrote: > On Wed, 14 Mar 2018, Kani, Toshi wrote: > > On Wed, 2018-03-14 at 20:27 +0100, Thomas Gleixner wrote: > > > On Tue, 13 Mar 2018, Toshi Kani wrote: > > > > > > > vmalloc_fault() sets user's pgd or p4d from the kernel page table. > > > > Once it's set, all tables underneath are identical. There is no point > > > > of following the same page table with two separate pointers and makes > > > > sure they see the same with BUG(). > > > > > > > > Remove the pointless checks in vmalloc_fault(). Also rename the kernel > > > > pgd/p4d pointers to pgd_k/p4d_k so that their names are consistent in > > > > the file. > > > > > > I have no idea to which branch this might apply. The first patch applies > > > cleanly on linus head, but this one fails in hunk #2 on everything I > > > tried. Can you please check? > > > > Sorry for the trouble. The patches are based on linus head. I just tried > > and they applied clean to me... > > Hmm. Looks like I tried on the wrong branch. Nevertheless, 1/2 is queued in > urgent, but 2/2 will go through tip/x86/mm which already has changes in > that area causing the patch to fail. I just merged x86/urgent into x86/mm > and pushed it out. Can you please rebase 2/2 on top of that bracnh and > resend ? Yes, I will merge up 2/2 and resend. Thanks, -Toshi