lkml.org 
[lkml]   [2017]   [Oct]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: net/sunrpc: v4.14-rc4 lockdep warning
Hello,

On Tue, Oct 10, 2017 at 04:48:57PM +0000, Trond Myklebust wrote:
> Thanks for the explanation. What I'm not really understanding here
> though, is how the work item could be queued at all. We have a
> wait_on_bit_lock() in xprt_destroy() that should mean the xprt-
> >task_cleanup work item has completed running, and that it cannot be
> requeued.
>
> Is there a possibility that the flush_queue() might be triggered
> despite the work item not being queued?

Yeah, for sure. The lockdep annotations don't distinguish those
cases and assume the worst case.

Thanks.

--
tejun

\
 
 \ /
  Last update: 2017-10-10 19:20    [W:0.117 / U:0.212 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site