A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

mm: page_alloc: Make paranoid check in move_freepages a VM_BUG_ON

Browse source 
Since 2.6.24 there has been a paranoid check in move_freepages that looks
up the zone of two pages.  This is a very slow path and the only time I've
seen this bug trigger recently is when memory initialisation was broken
during patch development.  Despite the fact it's a slow path, this patch
converts the check to a VM_BUG_ON anyway as it has served its purpose by
now.

Signed-off-by: Mel Gorman <[email protected]>
Acked-by: David Rientjes <[email protected]>
Acked-by: Rik van Riel <[email protected]>
Acked-by: Johannes Weiner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Mel Gorman 2014-10-09 15:28:28 -07:00 • committed by Linus Torvalds
commit 97ee4ba7cb
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
mm/page_alloc.c
View file

@ -1015,7 +1015,7 @@ int move_freepages(struct zone *zone,
* Remove at a later date when no bug reports exist related to
* grouping pages by mobility
*/
BUG_ON(page_zone(start_page) != page_zone(end_page));
VM_BUG_ON(page_zone(start_page) != page_zone(end_page));
#endif
for (page = start_page; page <= end_page;) {