linux-kernel - [PATCH -v2 3/6] fuse: remove cache for fuse request allocation

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Message-ID: <20120719124934.6250.47335.stgit@ltc137.sdl.hitachi.co.jp>
Date:	Thu, 19 Jul 2012 21:49:34 +0900
From:	Mitsuo Hayasaka <mitsuo.hayasaka.hu@...achi.com>
To:	Miklos Szeredi <miklos@...redi.hu>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Muthukumar R <muthur@...il.com>
Cc:	fuse-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-doc@...r.kernel.org,
	yrl.pp-manager.tt@...achi.com,
	Mitsuo Hayasaka <mitsuo.hayasaka.hu@...achi.com>,
	Miklos Szeredi <miklos@...redi.hu>,
	Nikolaus Rath <Nikolaus@...h.org>,
	Liu Yuan <namei.unix@...il.com>,
	Has-Wen Nienhuys <hanwen@...all.nl>
Subject: [PATCH -v2 3/6] fuse: remove cache for fuse request allocation

Remove fuse_req_cachep, which was used for fuse request buffer.
It is no longer used since the buffer is allocated dynamically
due to the tunable maximum read/write request size.

Signed-off-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@...achi.com>
Cc: Miklos Szeredi <miklos@...redi.hu>
Cc: Nikolaus Rath <Nikolaus@...h.org>
Cc: Liu Yuan <namei.unix@...il.com>
Cc: Has-Wen Nienhuys <hanwen@...all.nl>
---

 fs/fuse/dev.c |   21 +--------------------
 1 files changed, 1 insertions(+), 20 deletions(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 511560b..4087ff4 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -23,8 +23,6 @@
 MODULE_ALIAS_MISCDEV(FUSE_MINOR);
 MODULE_ALIAS("devname:fuse");
 
-static struct kmem_cache *fuse_req_cachep;
-
 static struct fuse_conn *fuse_get_conn(struct file *file)
 {
 	/*
@@ -2075,27 +2073,10 @@ static struct miscdevice fuse_miscdevice = {
 
 int __init fuse_dev_init(void)
 {
-	int err = -ENOMEM;
-	fuse_req_cachep = kmem_cache_create("fuse_request",
-					    sizeof(struct fuse_req),
-					    0, 0, NULL);
-	if (!fuse_req_cachep)
-		goto out;
-
-	err = misc_register(&fuse_miscdevice);
-	if (err)
-		goto out_cache_clean;
-
-	return 0;
-
- out_cache_clean:
-	kmem_cache_destroy(fuse_req_cachep);
- out:
-	return err;
+	return misc_register(&fuse_miscdevice);
 }
 
 void fuse_dev_cleanup(void)
 {
 	misc_deregister(&fuse_miscdevice);
-	kmem_cache_destroy(fuse_req_cachep);
 }

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