redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

mm: cleanup the comment for head/tail pages of compound pages in mm/page_alloc.c 

Only tail pages point at the head page using their ->first_page fields.

Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hifive-unleashed-5.1
Wang Sheng-Hui 2011-11-17 10:53:50 +01:00 committed by Jiri Kosina
parent 7433f2b78c
commit 6416b9fa43
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
mm/page_alloc.c
View File

@ -333,8 +333,8 @@ out:
*
* The remaining PAGE_SIZE pages are called "tail pages".
*
* All pages have PG_compound set. All pages have their ->private pointing at
* the head page (even the head page has this).
* All pages have PG_compound set. All tail pages have their ->first_page
* pointing at the head page.
*
* The first tail page's ->lru.next holds the address of the compound page's
* put_page() function. Its ->lru.prev holds the order of allocation.