linux-kernel - [PATCH 22/27] ntfs: Convert to new freezing mechanism

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Date:	Mon, 16 Apr 2012 18:14:00 +0200
From:	Jan Kara <jack@...e.cz>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	dchinner@...hat.com, LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel@...r.kernel.org, Jan Kara <jack@...e.cz>,
	linux-ntfs-dev@...ts.sourceforge.net,
	Anton Altaparmakov <anton@...era.com>
Subject: [PATCH 22/27] ntfs: Convert to new freezing mechanism

Move check in ntfs_file_aio_write_nolock() to ntfs_file_aio_write() and
use new freeze protection.

CC: linux-ntfs-dev@...ts.sourceforge.net
CC: Anton Altaparmakov <anton@...era.com>
Signed-off-by: Jan Kara <jack@...e.cz>
---
 fs/ntfs/file.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 8639169..e026e5f 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -2084,7 +2084,6 @@ static ssize_t ntfs_file_aio_write_nolock(struct kiocb *iocb,
 	if (err)
 		return err;
 	pos = *ppos;
-	vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE);
 	/* We can write back this queue in page reclaim. */
 	current->backing_dev_info = mapping->backing_dev_info;
 	written = 0;
@@ -2117,6 +2116,7 @@ static ssize_t ntfs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
 
 	BUG_ON(iocb->ki_pos != pos);
 
+	sb_start_write(inode->i_sb);
 	mutex_lock(&inode->i_mutex);
 	ret = ntfs_file_aio_write_nolock(iocb, iov, nr_segs, &iocb->ki_pos);
 	mutex_unlock(&inode->i_mutex);
@@ -2125,6 +2125,7 @@ static ssize_t ntfs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
 		if (err < 0)
 			ret = err;
 	}
+	sb_end_write(inode->i_sb);
 	return ret;
 }
 
-- 
1.7.1

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