From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755823Ab1LCBtH (ORCPT ); Fri, 2 Dec 2011 20:49:07 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.125]:59507 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754419Ab1LCBry (ORCPT ); Fri, 2 Dec 2011 20:47:54 -0500 X-Authority-Analysis: v=2.0 cv=dOUkaZlb c=1 sm=0 a=ZycB6UtQUfgMyuk2+PxD7w==:17 a=vhdKIqpQuCYA:10 a=i9mJVuLNXSAA: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=1h-3lTIDcidjld8kdYoA:9 a=ZycB6UtQUfgMyuk2+PxD7w==:117 X-Cloudmark-Score: 0 X-Originating-IP: 74.67.80.29 Message-Id: <20111203014750.893516213@goodmis.org> User-Agent: quilt/0.48-1 Date: Fri, 02 Dec 2011 20:46:47 -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 06/10] pci: Use __wake_up_all_locked pci_unblock_user_cfg_access() References: <20111203014641.165123482@goodmis.org> Content-Disposition: inline; filename=0006-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) iQIcBAABAgAGBQJO2X/HAAoJEIy3vGnGbaoAYXcP/iyibNXKUKbQCG7v/3VS/pmY AB+O/bGv4FX7t5vyj06SHK3bLD2kyzonYQXhw11Ni7A7NsSowkonkIvxnrlb/eq2 nhAp+Oj1RSsD7R4H+rCIHdJdy4kRqRgtFfUhuMqANhJJg0chDAsrjqQGMbloPnc/ lisGco7uhQxSY1h82HHB1z9RdypUi18nw4ebDc0q9o2/j0WfLbOYIpvql6Q/p4Tf waXpvxD/BaceEQvMEzSEBElfyoWCeULITRd1sfEP7InnWm21x3x7hl1ztNxyN+hS 1KgkIFMYmIa0u59l6IPy3e0GAIeilx2/G9peKXu+hCMBzy0t+rF38yAMyoFAor2i DfkIpZmzIbst+CLw84XNWZKKFKMDk3TH3WTMlpbf93BPHlHJ1ktl5BCJJz8LJcYX jip0ggcK3KRZ9i8UJMNYjmiIOQIiC698r+nhOmJh+U8DmvG1lhzim/ZgixLq/M+x 4/YNG8kKAyb2aBO9aW3Exkz3aGsqOjMQQeUzH6PnLTCtcVzBJnoBZizXejGbWdZ6 Y9RQNCdnLd88dhQa9P9bDJer8jyDqXYlvK66X7Bq2vd22Yx8AF+Ds1dBpz8l+JqE CFY1sAizN00L+WN8bzLATJGMp5Wm2NVfwQveGz19+Kn1BOm7t2EHWBNh8C4+ozC8 Nkn9O6b/x+ybJ8V1wnjh =1rjQ -----END PGP SIGNATURE----- --00GvhwF7k39YY--