lkml.org 
[lkml]   [2014]   [Nov]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectConfusion about __do_fault and MM_ANONPAGES
From
Hi,

I have some confusion about when is anon=1 when __do_fault is called.

__do_fault seems to be called only when the page fault is of a linear
or a non-linear mapping. My understanding is neither of these can be
anonymous, so I am confused about the below code fragment:

In which case is anon=1 when memory.c::__do_fault is called?
In __do_fault, you'll see something like...
if (anon) {
inc_mm_counter_fast(mm, MM_ANONPAGES);
page_add_new_anon_rmap(page, vma, address);
} else {


Thanks!
Joel


\
 
 \ /
  Last update: 2014-11-11 02:01    [W:0.018 / U:1.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site