On Thu, 18 Sep 2014, Petr [iso-8859-1] Ml�dek wrote:
> > This routine can be called from multiple work_structs, because a USB
> > bus can have multiple hubs.
>
> The easiest solution would be to allocate the work queue with
> the flag WQ_UNBOUND and max_active = 1. It will force serialization
>
On Thu, Sep 18, 2014 at 06:15:02PM +0200, Petr Mládek wrote:
> The easiest solution would be to allocate the work queue with
> the flag WQ_UNBOUND and max_active = 1. It will force serialization
> of all work items.
Please use alloc_ordered_workqueue() for that purpose. WQ_UNBOUND +
max_active
On Thu 18-09-14 10:24:23, Alan Stern wrote:
> On Thu, 18 Sep 2014, Tejun Heo wrote:
>
> > Hello, Alan, Petr.
> >
> > On Wed, Sep 17, 2014 at 01:36:26PM -0400, Alan Stern wrote:
> > > > - /* If khubd ever becomes multithreaded, this will need a lock */
> > > > + /* If hub_wq ever
On Thu, 18 Sep 2014, Tejun Heo wrote:
> Hello, Alan, Petr.
>
> On Wed, Sep 17, 2014 at 01:36:26PM -0400, Alan Stern wrote:
> > > - /* If khubd ever becomes multithreaded, this will need a lock */
> > > + /* If hub_wq ever becomes multithreaded, this will need a lock */
> > > if (udev->wusb) {
On Thu, 18 Sep 2014, Tejun Heo wrote:
Hello, Alan, Petr.
On Wed, Sep 17, 2014 at 01:36:26PM -0400, Alan Stern wrote:
- /* If khubd ever becomes multithreaded, this will need a lock */
+ /* If hub_wq ever becomes multithreaded, this will need a lock */
if (udev-wusb) {
On Thu 18-09-14 10:24:23, Alan Stern wrote:
On Thu, 18 Sep 2014, Tejun Heo wrote:
Hello, Alan, Petr.
On Wed, Sep 17, 2014 at 01:36:26PM -0400, Alan Stern wrote:
- /* If khubd ever becomes multithreaded, this will need a lock */
+ /* If hub_wq ever becomes
On Thu, Sep 18, 2014 at 06:15:02PM +0200, Petr Mládek wrote:
The easiest solution would be to allocate the work queue with
the flag WQ_UNBOUND and max_active = 1. It will force serialization
of all work items.
Please use alloc_ordered_workqueue() for that purpose. WQ_UNBOUND +
max_active == 1
On Thu, 18 Sep 2014, Petr [iso-8859-1] Ml�dek wrote:
This routine can be called from multiple work_structs, because a USB
bus can have multiple hubs.
The easiest solution would be to allocate the work queue with
the flag WQ_UNBOUND and max_active = 1. It will force serialization
of all
Hello, Alan, Petr.
On Wed, Sep 17, 2014 at 01:36:26PM -0400, Alan Stern wrote:
> > - /* If khubd ever becomes multithreaded, this will need a lock */
> > + /* If hub_wq ever becomes multithreaded, this will need a lock */
> > if (udev->wusb) {
> > devnum = udev->portnum + 1;
>
On Wed, 17 Sep 2014, Petr Mladek wrote:
> USB hub has started to use a workqueue instead of kthread. Let's update
> the documentation and comments here and there.
>
> This patch mostly just replaces "khubd" with "hub_wq". There are only few
> exceptions where the whole sentence was updated.
USB hub has started to use a workqueue instead of kthread. Let's update
the documentation and comments here and there.
This patch mostly just replaces "khubd" with "hub_wq". There are only few
exceptions where the whole sentence was updated. These more complicated
changes can be found in the
USB hub has started to use a workqueue instead of kthread. Let's update
the documentation and comments here and there.
This patch mostly just replaces khubd with hub_wq. There are only few
exceptions where the whole sentence was updated. These more complicated
changes can be found in the
On Wed, 17 Sep 2014, Petr Mladek wrote:
USB hub has started to use a workqueue instead of kthread. Let's update
the documentation and comments here and there.
This patch mostly just replaces khubd with hub_wq. There are only few
exceptions where the whole sentence was updated. These more
Hello, Alan, Petr.
On Wed, Sep 17, 2014 at 01:36:26PM -0400, Alan Stern wrote:
- /* If khubd ever becomes multithreaded, this will need a lock */
+ /* If hub_wq ever becomes multithreaded, this will need a lock */
if (udev-wusb) {
devnum = udev-portnum + 1;
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