diff options
| author | Andrew Morton <akpm@osdl.org> | 2004-01-19 05:11:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.osdl.org> | 2004-01-19 05:11:34 -0800 |
| commit | f1933a6dd8c813d5f7482f4fc48dd343003a10de (patch) | |
| tree | 4235ca009b2a40689bff6e1dca06fb5c42ab0f7e /include | |
| parent | 8e05ea563f2fccdc9faedb483843fbaa82151ecf (diff) | |
[PATCH] vmscan: initialize zone->{prev,temp}_priority
From: Nikita Danilov <Nikita@Namesys.COM>
This patch initializes zone->{prev,temp}_priority to DEF_PRIORITY.
Otherwise they are left zeroed, and first run of VM scanner thinks that
zones are under enormous stress.
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmzone.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 9fa4ffb2675c..66cbaa36d878 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -166,6 +166,13 @@ struct zone { #define GFP_ZONEMASK 0x03 /* + * The "priority" of VM scanning is how much of the queues we will scan in one + * go. A value of 12 for DEF_PRIORITY implies that we will scan 1/4096th of the + * queues ("queue_length >> 12") during an aging round. + */ +#define DEF_PRIORITY 12 + +/* * One allocation request operates on a zonelist. A zonelist * is a list of zones, the first one is the 'goal' of the * allocation, the other zones are fallback zones, in decreasing |