On 05/22/2012 04:59 AM, Michael S. Tsirkin wrote:
On Mon, May 21, 2012 at 05:08:33PM +0800, Asias He wrote:
Block layer will allocate a spinlock for the queue if the driver does
not provide one in blk_init_queue().
The reason to use the internal spinlock is that blk_cleanup_queue() will
switch
On Mon, May 21, 2012 at 05:08:33PM +0800, Asias He wrote:
> Block layer will allocate a spinlock for the queue if the driver does
> not provide one in blk_init_queue().
>
> The reason to use the internal spinlock is that blk_cleanup_queue() will
> switch to use the internal spinlock in the cleanup
Block layer will allocate a spinlock for the queue if the driver does
not provide one in blk_init_queue().
The reason to use the internal spinlock is that blk_cleanup_queue() will
switch to use the internal spinlock in the cleanup code path.
if (q->queue_lock != &q->__queue_lock)
