From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Rostedt Subject: [PATCH 06/10] pci: Use __wake_up_all_locked pci_unblock_user_cfg_access() Date: Fri, 02 Dec 2011 20:46:47 -0500 Message-ID: <20111203014750.893516213@goodmis.org> References: <20111203014641.165123482@goodmis.org> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="00GvhwF7k39YY" Cc: Thomas Gleixner , Carsten Emde , John Kacur , stable-rt@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-rt-users Return-path: Content-Disposition: inline; filename=0006-pci-Use-__wake_up_all_locked-pci_unblock_user_cfg_ac.patch Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-rt-users.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--