raspi/linux
1
0
Fork 1
mirror of https://github.com/raspberrypi/linux.git synced 2025-12-06 10:00:17 +00:00
Code Issues Projects Releases Wiki Activity

vmstat: Workaround for issue where dirty page count goes negative

Browse Source 
See:
https://github.com/raspberrypi/linux/issues/617
http://www.spinics.net/lists/linux-mm/msg72236.html
This commit is contained in:
popcornmix
2014-06-18 13:42:01 +01:00
parent 57de9df644
commit ef7adecbe3
1 changed files with 4 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/vmstat.h
View File

@@ -241,7 +241,11 @@ static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
{
atomic_long_dec(&zone->vm_stat[item]);
if (item == NR_FILE_DIRTY && unlikely(atomic_long_read(&zone->vm_stat[item]) < 0))
atomic_long_set(&zone->vm_stat[item], 0);
atomic_long_dec(&vm_stat[item]);
if (item == NR_FILE_DIRTY && unlikely(atomic_long_read(&vm_stat[item]) < 0))
atomic_long_set(&vm_stat[item], 0);
}
static inline void __inc_zone_page_state(struct page *page,