Keith Busch <[email protected]> writes: > The tagset lock needs to be held when iterating the tag_list, so a > lockdep assert was added when updating number of hardware queues. The > drivers calling this API, however, were unaware of the new requirement, > so are failing the assertion. > > This patch takes the lock within the blk-mq function so the drivers do > not have to be modified in order to be safe. > > Fixes: 705cda97e ("blk-mq: Make it safe to use RCU to iterate over > blk_mq_tag_set.tag_list") > > Reported-by: Gabriel Krisman Bertazi <[email protected]> > Reviewed-by: Bart Van Assche <[email protected]> > Signed-off-by: Keith Busch <[email protected]>
I know it is already applied but, FWIW, I can confirm it fixed the issue in our CI. Feel free to add: Tested-by: Gabriel Krisman Bertazi <[email protected]> Thanks again, Keith. -- Gabriel Krisman Bertazi
