linux-ext4 - [PATCH RESEND] ext4: change return value from int to ssize_t in ext4_file

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Message-Id: <1334280157-11630-1-git-send-email-wenqing.lz@taobao.com>
Date:	Fri, 13 Apr 2012 09:22:37 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	jack@...e.cz
Cc:	jouni.siren@....fi, linux-ext4@...r.kernel.org,
	Zheng Liu <wenqing.lz@...bao.com>
Subject: [PATCH RESEND] ext4: change return value from int to ssize_t in ext4_file_write

On 64-platform, when we do a write operation with a huge number of data, it
will cause that the ret variable overflows.  So it is replaced with ssize_t.

Reported-by: Jouni Siren <jouni.siren@....fi>
Reviewed-by: Jan Kara <jack@...e.cz>
Signed-off-by: Zheng Liu <wenqing.lz@...bao.com>
---
Hi Jan,

You are right.  I have changed the commit log.  ;-)

Regards,
Zheng

 fs/ext4/file.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index cb70f18..8c7642a 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -95,7 +95,7 @@ ext4_file_write(struct kiocb *iocb, const struct iovec *iov,
 {
 	struct inode *inode = iocb->ki_filp->f_path.dentry->d_inode;
 	int unaligned_aio = 0;
-	int ret;
+	ssize_t ret;
 
 	/*
 	 * If we have encountered a bitmap-format file, the size limit
-- 
1.7.4.1

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