linux-kernel - [PATCH] btrfs compression: reuse recently used workspace

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Message-Id: <1403622044-2964-1-git-send-email-sergey.senozhatsky@gmail.com>
Date:	Wed, 25 Jun 2014 00:00:43 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:	Chris Mason <clm@...com>
Cc:	Josef Bacik <jbacik@...com>, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: [PATCH] btrfs compression: reuse recently used workspace

Hello,

Whenever possible, find_workspace() returns the first idle workspace;
and free_workspace() puts workspace to idle list tail. Put workspace to
head of idle list instead. Hopefully, this will let to reuse most recently
used workspace and avoid workspace->mem, ->buf, ->cbuf address translations.

p.s. This patch is theoretical, no testing has been performed in order to
support this patch.

Sergey Senozhatsky (1):
  btrfs compression: reuse recently used workspace

 fs/btrfs/compression.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.0.0.548.ge727dec

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