Messages in this thread | | | Date | Tue, 24 Apr 2012 14:16:50 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [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 <minchan@kernel.org>
Hmm ? vmalloc should support GFP_ATOMIC ?
And, do we need to change all pud_,pgd_,pmd_,pte_alloc() for users pgtables ?
Thanks, -Kame
| |