From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: David Vrabel <david.vrabel@citrix.com>, xen-devel@lists.xenproject.org
Cc: Ross Lagerwall <ross.lagerwall@citrix.com>,
Sander Eikelenboom <linux@eikelenboom.it>
Subject: Re: [PATCHv1] xen/events/fifo: Handle linked events when closing a PIRQ port
Date: Mon, 10 Aug 2015 12:09:50 -0400 [thread overview]
Message-ID: <55C8CCCE.9010503@oracle.com> (raw)
In-Reply-To: <1439216678-12407-1-git-send-email-david.vrabel@citrix.com>
On 08/10/2015 10:24 AM, David Vrabel wrote:
> Commit fcdf31a7c162de0c93a2bee51df4688ab0a348f8 (xen/events/fifo:
> Handle linked events when closing a port) did not handle closing a
> port bound to a PIRQ because these are closed from shutdown_pirq()
> which is called with interrupts disabled.
>
> Defer the close to a work queue where we can safely spin waiting for
> the LINKED bit to clear. For simplicity, the close is always deferred
> even if it is not required (i.e., we're already in process context).
>
> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
> Cc: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Boris Ostrovsky <bori.ostrovsky@oracle.com>
next prev parent reply other threads:[~2015-08-10 16:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-10 14:24 [PATCHv1] xen/events/fifo: Handle linked events when closing a PIRQ port David Vrabel
2015-08-10 16:09 ` Boris Ostrovsky [this message]
2015-08-10 16:47 ` linux
2015-08-10 17:16 ` David Vrabel
2015-09-16 15:26 ` Boris Ostrovsky
2015-09-16 15:34 ` David Vrabel
2015-09-16 17:34 ` Boris Ostrovsky
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