From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755486Ab1LDTAZ (ORCPT ); Sun, 4 Dec 2011 14:00:25 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.124]:42201 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755262Ab1LDTAU (ORCPT ); Sun, 4 Dec 2011 14:00:20 -0500 X-Authority-Analysis: v=2.0 cv=bdLpoZzB c=1 sm=0 a=ZycB6UtQUfgMyuk2+PxD7w==:17 a=vhdKIqpQuCYA:10 a=zK1o0aTXHwcA:10 a=5SG0PmZfjMsA:10 a=bbbx4UPp9XUA:10 a=VwQbUJbxAAAA:8 a=meVymXHHAAAA:8 a=YOHAqSSgXUB0i1AXnCkA:9 a=3AQ5DN9QyJt3oUb-8IIA:7 a=QEXdDO2ut3YA:10 a=Zh68SRI7RUMA:10 a=jeBq3FmKZ4MA:10 a=J2NMI5S_6GZ5J2FRUBUA:9 a=ZycB6UtQUfgMyuk2+PxD7w==:117 X-Cloudmark-Score: 0 X-Originating-IP: 74.67.80.29 Message-Id: <20111204190017.703302345@goodmis.org> User-Agent: quilt/0.48-1 Date: Sun, 04 Dec 2011 13:54:51 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-rt-users Cc: Thomas Gleixner , Carsten Emde , John Kacur , stable-rt@vger.kernel.org Subject: [PATCH 07/11] pci: Use __wake_up_all_locked pci_unblock_user_cfg_access() References: <20111204185444.411298317@goodmis.org> Content-Disposition: inline; filename=0007-pci-Use-__wake_up_all_locked-pci_unblock_user_cfg_ac.patch Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="00GvhwF7k39YY" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --00GvhwF7k39YY Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable From: Thomas Gleixner The waitqueue is protected by the pci_lock, so we can just avoid to lock the waitqueue lock itself. That prevents the might_sleep()/scheduling while atomic problem on RT Signed-off-by: Thomas Gleixner Cc: stable-rt@vger.kernel.org Signed-off-by: Steven Rostedt --- drivers/pci/access.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/pci/access.c b/drivers/pci/access.c index fdaa42a..1a6cc67 100644 --- a/drivers/pci/access.c +++ b/drivers/pci/access.c @@ -441,7 +441,7 @@ void pci_unblock_user_cfg_access(struct pci_dev *dev) WARN_ON(!dev->block_ucfg_access); =20 dev->block_ucfg_access =3D 0; - wake_up_all(&pci_ucfg_wait); + wake_up_all_locked(&pci_ucfg_wait); raw_spin_unlock_irqrestore(&pci_lock, flags); } EXPORT_SYMBOL_GPL(pci_unblock_user_cfg_access); --=20 1.7.7.1 --00GvhwF7k39YY Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJO28NBAAoJEIy3vGnGbaoANhYP/ifWK0+SrswxckZxLRVyCS/8 7YDkt1kFVgKQltsJnjIPCSYkmcffT2DBMEB4sNSETNqasR/RMWeYJQnadxPhDle/ gaRSTS64M/NGbD4Z33W71qWMFgz8rPDI3/eRVASHe1yF2lmGhnrxXxhk+3OzwykM 0hQpR1/13rfQfzPr9jSkxz4ZQK8TCg7g+DE9g0y8AwGbmdapy1ErZ1LDiBSGToll 2CDWzJb/lFq+yPMbLYj0vLGW8E1ik1WMyFZD8kmfq/Xc1NVQCuKWy2GFbmhAA+E8 /UbbherZsGONeesNzc0qF/tvJVa0408uHxh4FL4JdtH/+FLWPSFP1oZ6jTUiJ4q7 LAkcK0YtsGNHWBKcOisglhILCmLYGrqovzmbjd/Z7W2sA64f+aO7ea3TK3u/b2Cp vhsZvAPClJkuy/gTqjYEb5DcL7qAWTwBxVoSUqeuD5eMAafnxPBHe4qV4v7lfDoe gQP+ImLCUFqFIgwKC6qA5zn1ybr0ul6xDxolbJWp7fnpDjOHZrZTS8Qb0EaaU0KQ a/hbCxzbZMwY86Vxkj0lA5r0tz1lKyn8jO/nxnlIDnGUxoulH0nk5zNawd7lOwDN FqK3JpEulRN3uWwaYQAw+QWEeyWJKw+13sio51AbgWo/SB67o6B5Uc3TEU+4APjd dri+X32b9IkfmgduB9eM =JQVW -----END PGP SIGNATURE----- --00GvhwF7k39YY--