Messages in this thread | | | From | Luis Chamberlain <> | Date | Fri, 10 Apr 2020 14:50:40 -0600 | Subject | Re: [RFC v2 5/5] block: revert back to synchronous request_queue removal |
| |
On Fri, Apr 10, 2020 at 8:34 AM Luis Chamberlain <mcgrof@kernel.org> wrote: > On Thu, Apr 09, 2020 at 08:12:21PM -0700, Bart Van Assche wrote: > > Please add a might_sleep() call in blk_put_queue() since with this patch > > applied it is no longer allowed to call blk_put_queue() from atomic context. > > Sure thing.
On second though, I don't think blk_put_queue() would be the right place for might_sleep(), given we really only care about the *last* refcount decrement to 0. So I'll move it to blk_release_queue(). Granted, at that point we are too late, and we'd get a splat about this issue *iff* we really sleep. So yeah, I do suppose that forcing this check there still makes sense.
Luis
| |