From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org
Cc: Mark Fasheh <mfasheh@suse.com>,
Joel Becker <joel.becker@oracle.com>,
ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] [patch -v3 02/22] ocfs2: use simple_read_from_buffer
Date: Wed, 04 Jun 2008 12:09:58 -0000 [thread overview]
Message-ID: <20080604115711.088785233@gmail.com> (raw)
In-Reply-To: 20080604115633.116832712@gmail.com
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From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org
Cc: Mark Fasheh <mfasheh@suse.com>,
Joel Becker <joel.becker@oracle.com>,
ocfs2-devel@oss.oracle.com
Subject: [patch -v3 02/22] ocfs2: use simple_read_from_buffer
Date: Wed, 04 Jun 2008 20:56:35 +0900 [thread overview]
Message-ID: <20080604115711.088785233@gmail.com> (raw)
In-Reply-To: 20080604115633.116832712@gmail.com
[-- Attachment #1: ocfs2-use-simple-read-from-buffer.patch --]
[-- Type: text/plain, Size: 1323 bytes --]
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: ocfs2-devel@oss.oracle.com
---
fs/ocfs2/stack_user.c | 19 +++++--------------
1 file changed, 5 insertions(+), 14 deletions(-)
Index: 2.6-git/fs/ocfs2/stack_user.c
===================================================================
--- 2.6-git.orig/fs/ocfs2/stack_user.c
+++ 2.6-git/fs/ocfs2/stack_user.c
@@ -549,26 +549,17 @@ static ssize_t ocfs2_control_read(struct
size_t count,
loff_t *ppos)
{
- char *proto_string = OCFS2_CONTROL_PROTO;
- size_t to_write = 0;
+ ssize_t ret;
- if (*ppos >= OCFS2_CONTROL_PROTO_LEN)
- return 0;
-
- to_write = OCFS2_CONTROL_PROTO_LEN - *ppos;
- if (to_write > count)
- to_write = count;
- if (copy_to_user(buf, proto_string + *ppos, to_write))
- return -EFAULT;
-
- *ppos += to_write;
+ ret = simple_read_from_buffer(buf, count, ppos,
+ OCFS2_CONTROL_PROTO, OCFS2_CONTROL_PROTO_LEN);
/* Have we read the whole protocol list? */
- if (*ppos >= OCFS2_CONTROL_PROTO_LEN)
+ if (ret > 0 && *ppos >= OCFS2_CONTROL_PROTO_LEN)
ocfs2_control_set_handshake_state(file,
OCFS2_CONTROL_HANDSHAKE_READ);
- return to_write;
+ return ret;
}
static int ocfs2_control_release(struct inode *inode, struct file *file)
--
next prev parent reply other threads:[~2008-06-04 12:09 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-04 11:56 [patch -v3 00/22] use simple_read_from_buffer and memory_read_from_buffer Akinobu Mita
2008-06-04 11:56 ` [patch -v3 01/22] binfmt_misc: use simple_read_from_buffer Akinobu Mita
2008-06-04 11:56 ` Akinobu Mita [this message]
2008-06-04 12:09 ` [Ocfs2-devel] [patch -v3 02/22] ocfs2: " Akinobu Mita
2008-06-06 22:46 ` Joel Becker
2008-06-06 22:46 ` Joel Becker
2008-06-04 11:56 ` [patch -v3 03/22] ipc: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 04/22] isdn: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 05/22] s390/vmcp: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 06/22] s390: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 07/22] nwflash: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 08/22] usbmon: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 09/22] ttusb: use simple_read_from_buffer() Akinobu Mita
2008-06-04 11:56 ` [patch -v3 10/22] airo: use simple_read_from_buffer Akinobu Mita
2008-06-04 11:56 ` Akinobu Mita
2008-06-04 11:56 ` [patch -v3 11/22] cris: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 12/22] introduce memory_read_from_buffer Akinobu Mita
2008-06-04 11:56 ` [patch -v3 13/22] dcdbas: use memory_read_from_buffer Akinobu Mita
2008-06-04 11:56 ` [patch -v3 14/22] dell_rbu: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 15/22] firmware: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 16/22] acpi: " Akinobu Mita
2008-06-05 1:21 ` Zhao Yakui
2008-06-05 1:29 ` Andrew Morton
2008-06-04 11:56 ` [patch -v3 17/22] aty: " Akinobu Mita
2008-06-04 11:56 ` Akinobu Mita
2008-06-04 11:56 ` [patch -v3 18/22] zorro: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 19/22] s390/cio: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 20/22] s390: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 21/22] ipr: " Akinobu Mita
2008-06-04 11:56 ` [patch -v3 22/22] qla2xxx: " Akinobu Mita
2008-06-06 17:06 ` Andrew Vasquez
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