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Btrfs: fix missing write access release in btrfs_ioctl_resize()
author
Miao Xie
<miaox@cn.fujitsu.com>
Fri, 21 Dec 2012 10:38:50 +0000
(10:38 +0000)
committer
Josef Bacik
<josef@toxicpanda.com>
Mon, 14 Jan 2013 18:52:51 +0000
(13:52 -0500)
We forget to give up the write access after we find some device operation
is going on. Fix it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
fs/btrfs/ioctl.c
patch
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diff --git
a/fs/btrfs/ioctl.c
b/fs/btrfs/ioctl.c
index
0de2121
..
982c0b9
100644
(file)
--- a/
fs/btrfs/ioctl.c
+++ b/
fs/btrfs/ioctl.c
@@
-1339,6
+1339,7
@@
static noinline int btrfs_ioctl_resize(struct file *file,
if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running,
1)) {
pr_info("btrfs: dev add/delete/balance/replace/resize operation in progress\n");
+ mnt_drop_write_file(file);
return -EINPROGRESS;
}