From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vaughan Cao Subject: [PATCH v4 0/4] [SCSI] sg: fix race condition in sg_open Date: Wed, 17 Jul 2013 23:34:02 +0800 Message-ID: <1374075246-22923-1-git-send-email-vaughan.cao@oracle.com> References: <20130715203730.GA21804@logfs.org> Return-path: In-Reply-To: <20130715203730.GA21804@logfs.org> Sender: linux-kernel-owner@vger.kernel.org To: joern@logfs.org Cc: dgilbert@interlog.com, JBottomley@parallels.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, vaughan.cao@oracle.com List-Id: linux-scsi@vger.kernel.org There is a race when open sg with O_EXCL flag. Also a race may happen between sg_open and sg_remove. Changes from v3: * release o_sem in sg_release(), not in sg_remove_sfp(). * not set exclude with sfd_lock held. Vaughan Cao (4): [SCSI] sg: use rwsem to solve race during exclusive open [SCSI] sg: no need sg_open_exclusive_lock [SCSI] sg: checking sdp->detached isn't protected when open [SCSI] sg: push file descriptor list locking down to per-device locking drivers/scsi/sg.c | 186 ++++++++++++++++++++++++++---------------------------- 1 file changed, 88 insertions(+), 98 deletions(-) -- 1.7.11.7