On 09/21/2016 10:26 PM, David Sterba wrote:
On Sat, Sep 10, 2016 at 07:03:38AM +0800, Anand Jain wrote:
static int __btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
{
struct btrfs_device *device, *tmp;
+ LIST_HEAD(pending_put);
+ INIT_LIST_HEAD(&pending_put);
L
On Sat, Sep 10, 2016 at 07:03:38AM +0800, Anand Jain wrote:
> static int __btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
> {
> struct btrfs_device *device, *tmp;
> + LIST_HEAD(pending_put);
> + INIT_LIST_HEAD(&pending_put);
LIST_HEAD declares and initializes the list to
btrfs_show_devname() is using the device_list_mutex, sometimes
a call to blkdev_put() leads vfs calling into this func. So
call blkdev_put() outside of device_list_mutex, as of now.
[ 983.284212] ==
[ 983.290401] [ INFO: possible circular locki
