On 04/19/17 19:36, Somayajulu, David wrote:
Hans,
Thanks for the info.
No sleeping functions like taskqueue_drain() can be called when the MTX_DEF
lock is grabbed.
I am guessing this is true irrespective of whether the taskqueue is "fast" or
not.
Thanks
Yes, that is correct.
--HPS
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elasky [mailto:h...@selasky.org]
Sent: Tuesday, April 18, 2017 9:22 PM
To: Sepherosa Ziehau ; Somayajulu, David
Cc: freebsd-net@freebsd.org
Subject: Re: Question on taskqueue_drain
On 04/19/17 05:37, Sepherosa Ziehau wrote:
> On Wed, Apr 19, 2017 at 10:39 AM, Somayajulu, David
> wrote:
>> S
On 04/19/17 05:37, Sepherosa Ziehau wrote:
On Wed, Apr 19, 2017 at 10:39 AM, Somayajulu, David
wrote:
Sorry what I meant to ask was, whether it is O.K to call taskqueue_drain(),
when an MTX_DEF lock is grabbed prior to calling taskqueue_drain().
You will hit WITNESS, if the drain needs to w
On Wed, Apr 19, 2017 at 10:39 AM, Somayajulu, David
wrote:
> Sorry what I meant to ask was, whether it is O.K to call taskqueue_drain(),
> when an MTX_DEF lock is grabbed prior to calling taskqueue_drain().
>
You will hit WITNESS, if the drain needs to wait; that's probably the
best case. If th
Sorry what I meant to ask was, whether it is O.K to call taskqueue_drain(),
when an MTX_DEF lock is grabbed prior to calling taskqueue_drain().
Thanks
David S. (davi...@freebsd.org)
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Hi,
Is it ok to call taskqueue_drain() when the MTX_DEF lock is held ?
Thanks
David S.
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