[lkml]   [2011]   [Mar]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 5/5] x86,mm: make pagefault killable
On Wed, Mar 23, 2011 at 1:09 AM, KOSAKI Motohiro
<> wrote:
> When __lock_page_or_retry() return 0, It call up_read(mmap_sem) in this
> function.


> I agree this is strange (or ugly). but I don't want change this spec in
> this time.

I agree that it is strange, and I don't like functions that touch
locks that they didn't take themselves, but since the original point
of the whole thing was to wait for the page without holding the
mmap_sem lock, that function has to do the up_read() early.


 \ /
  Last update: 2011-03-23 15:37    [W:0.079 / U:2.512 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site