Commit 032d9b8c authored Apr 15, 2015 by Sergey Senozhatsky Committed by Greg Hackmann Dec 09, 2015

UPSTREAM: zsmalloc: remove synchronize_rcu from zs_compact()



(cherry-pick from commit 1ec7cfb13acb8047ae5baafb43d2cd6b64ac85b9)

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

Bug: 25951511

Change-Id: I92cc840e7eab0368832d7c6355933ae38c04c100
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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent fad6231b

mm/zsmalloc.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -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);