On 08/27/15 10:15, Julien Charbon wrote:
Author: jch
Date: Thu Aug 27 08:15:32 2015
New Revision: 287196
URL: https://svnweb.freebsd.org/changeset/base/287196
Log:
In callout_stop(), if a callout is both pending and currently
being serviced return 0 (fail) but it is applicable only
mpsafe callouts. Thanks to hselasky for finding this.
Differential Revision: https://reviews.freebsd.org/D3078 (Updated)
Submitted by: hselasky
Reviewed by: jch
Hi,
I suggest that this special case be made into a new function, named
callout_drain_async() inspired from projects/hps_head and that r287196
be backed out, so that callout_stop() works like before. See:
https://reviews.freebsd.org/D3521
And that the following patch be MFC'ed to -current from
projects/hps_head after D3521.
https://svnweb.freebsd.org/changeset/base/287261
It should close the race in question.
--HPS
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