[PATCH V2 3/5] memcg: set soft_limit_in_bytes to 0 by default

[Ying Han <yinghan@google.com>]

1. If soft_limit are all set to MAX, it wastes first three periority iterations
without scanning anything.

2. By default every memcg is eligibal for softlimit reclaim, and we can also
set the value to MAX for special memcg which is immune to soft limit reclaim.

This idea is based on discussion with Michal and Johannes from LSF.

Signed-off-by: Ying Han <yinghan@google.com>
---
 kernel/res_counter.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index d508363..8017d01 100644
--- a/kernel/res_counter.c
+++ b/kernel/res_counter.c
@@ -18,7 +18,6 @@ void res_counter_init(struct res_counter *counter, struct res_counter *parent)
 {
 	spin_lock_init(&counter->lock);
 	counter->limit = RESOURCE_MAX;
-	counter->soft_limit = RESOURCE_MAX;
 	counter->parent = parent;
 }
 
-- 
1.7.7.3

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>