Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 29 Nov 2001 09:08:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 29 Nov 2001 09:07:53 -0500 Received: from wiprom2mx2.wipro.com ([203.197.164.42]:10683 "EHLO wiprom2mx2.wipro.com") by vger.kernel.org with ESMTP id ; Thu, 29 Nov 2001 09:07:51 -0500 Message-ID: <3C063E6B.5060308@wipro.com> Date: Thu, 29 Nov 2001 19:25:55 +0530 From: "BALBIR SINGH" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.5) Gecko/20011012 X-Accept-Language: en-us MIME-Version: 1.0 To: Russell King CC: linux-kernel@vger.kernel.org Subject: Re: [PATCH] remove BKL from drivers' release functions In-Reply-To: <3C057410.3090201@us.ibm.com> <20011128234505.C2561@flint.arm.linux.org.uk> Content-Type: multipart/mixed; boundary="----=_NextPartTM-000-17489e5c-e4c2-11d5-a216-0000e22173f5" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. ------=_NextPartTM-000-17489e5c-e4c2-11d5-a216-0000e22173f5 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Even register_blkdev(), etc hold BKL, without these there will be a lot of problems, all these need to be taken care of if BKL is ever replaced. Just adding what I know, Balbir Russell King wrote: >On Wed, Nov 28, 2001 at 03:32:32PM -0800, David C. Hansen wrote: > >>Nothing, because the BKL is not held for all opens anymore. In most of >>the cases that we addressed, the BKL was in release _only_, not in open >>at all. There were quite a few drivers where we added a spinlock, or >>used atomic operations to keep open from racing with release. >> > >All char and block devs are opened with the BKL held - see chrdev_open in >fs/devices.c and do_open in fs/block_dev.c > >-- >Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux > http://www.arm.linux.org.uk/personal/aboutme.html > >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ > ------=_NextPartTM-000-17489e5c-e4c2-11d5-a216-0000e22173f5 Content-Type: text/plain; name="InterScan_Disclaimer.txt" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="InterScan_Disclaimer.txt" ------------------------------------------------------------------------------------------------------------------------- Information transmitted by this E-MAIL is proprietary to Wipro and/or its Customers and is intended for use only by the individual or entity to which it is addressed, and may contain information that is privileged, confidential or exempt from disclosure under applicable law. If you are not the intended recipient or it appears that this mail has been forwarded to you without proper authority, you are notified that any use or dissemination of this information in any manner is strictly prohibited. In such cases, please notify us immediately at mailto:mailadmin@wipro.com and delete this mail from your records. ---------------------------------------------------------------------------------------------------------------------- ------=_NextPartTM-000-17489e5c-e4c2-11d5-a216-0000e22173f5-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/