From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Date: Tue, 7 Apr 2015 23:44:49 +0000 (+1000)
Subject: zsmalloc: remove synchronize_rcu from zs_compact()
X-Git-Tag: KARO-TXA5-2015-06-26~18^2~202
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f4e0345ec3cc6ebb43be51867613f694ae57c9ff;p=karo-tx-linux.git

zsmalloc: remove synchronize_rcu from zs_compact()

Do not synchronize rcu in zs_compact(). Neither zsmalloc not
zram use rcu.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 7a48e5568d46..8705a010e2d3 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1778,8 +1778,6 @@ unsigned long zs_compact(struct zs_pool *pool)
 		nr_migrated += __zs_compact(pool, class);
 	}
 
-	synchronize_rcu();
-
 	return nr_migrated;
 }
 EXPORT_SYMBOL_GPL(zs_compact);