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btrfs: switch btrfs_ioctl_balance() to mnt_want_write_file()
author
Al Viro
<viro@zeniv.linux.org.uk>
Thu, 19 Jul 2012 07:17:49 +0000
(11:17 +0400)
committer
Al Viro
<viro@zeniv.linux.org.uk>
Sun, 22 Jul 2012 20:01:43 +0000
(
00:01
+0400)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/btrfs/ioctl.c
patch
|
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diff --git
a/fs/btrfs/ioctl.c
b/fs/btrfs/ioctl.c
index
0e92e57
..
1e9f6c0
100644
(file)
--- a/
fs/btrfs/ioctl.c
+++ b/
fs/btrfs/ioctl.c
@@
-3268,7
+3268,7
@@
static long btrfs_ioctl_balance(struct file *file, void __user *arg)
if (fs_info->sb->s_flags & MS_RDONLY)
return -EROFS;
- ret = mnt_want_write
(file->f_path.mnt
);
+ ret = mnt_want_write
_file(file
);
if (ret)
return ret;
@@
-3338,7
+3338,7
@@
out_bargs:
out:
mutex_unlock(&fs_info->balance_mutex);
mutex_unlock(&fs_info->volume_mutex);
- mnt_drop_write
(file->f_path.mnt
);
+ mnt_drop_write
_file(file
);
return ret;
}