mirror of
https://github.com/Fishwaldo/Star64_linux.git
synced 2025-07-13 10:02:18 +00:00
block: defer timeouts to a workqueue
Timer context is not very useful for drivers to perform any meaningful abort action from. So instead of calling the driver from this useless context defer it to a workqueue as soon as possible. Note that while a delayed_work item would seem the right thing here I didn't dare to use it due to the magic in blk_add_timer that pokes deep into timer internals. But maybe this encourages Tejun to add a sensible API for that to the workqueue API and we'll all be fine in the end :) Contains a major update from Keith Bush: "This patch removes synchronizing the timeout work so that the timer can start a freeze on its own queue. The timer enters the queue, so timer context can only start a freeze, but not wait for frozen." Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
parent
8c0b391550
commit
287922eb0b
5 changed files with 24 additions and 6 deletions
|
@ -407,6 +407,7 @@ struct request_queue {
|
|||
|
||||
unsigned int rq_timeout;
|
||||
struct timer_list timeout;
|
||||
struct work_struct timeout_work;
|
||||
struct list_head timeout_list;
|
||||
|
||||
struct list_head icq_list;
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue