From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Rostedt Subject: [PATCH 07/11] pci: Use __wake_up_all_locked pci_unblock_user_cfg_access() Date: Sun, 04 Dec 2011 13:54:51 -0500 Message-ID: <20111204190017.703302345@goodmis.org> References: <20111204185444.411298317@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=0007-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) 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--