[lkml]   [2012]   [Apr]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC] propagate gfp_t to page table alloc functions
(2012/04/23 17:55), Minchan Kim wrote:

> As I test some code, I found a problem about deadlock by lockdep.
> The reason I saw the message is __vmalloc calls map_vm_area which calls
> pud/pmd_alloc without gfp_t. so although we call __vmalloc with
> GFP_ATOMIC or GFP_NOIO, it ends up allocating pages with GFP_KERNEL.
> The should be a BUG. This patch fixes it by passing gfp_to to low page
> table allocate functions.
> Signed-off-by: Minchan Kim <>

Hmm ? vmalloc should support GFP_ATOMIC ?

And, do we need to change all pud_,pgd_,pmd_,pte_alloc() for users pgtables ?


 \ /
  Last update: 2012-04-24 07:21    [W:0.110 / U:3.576 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site