From 4e3eb4f6782da3f326879622e28a5efd3a1d26bd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?= Date: Fri, 20 Mar 2015 05:08:13 +0100 Subject: [PATCH] xen: fix deadlock on /proc/xen/xenbus access MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Organization: Invisible Things Lab Cc: Marek Marczykowski-Górecki Details here: http://lists.xenproject.org/archives/html/xen-devel/2015-03/msg02501.html Signed-off-by: Marek Marczykowski-Górecki --- drivers/xen/xenbus/xenbus_dev_frontend.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c index 9433e46..3d333b13 100644 --- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -535,6 +535,7 @@ static int xenbus_file_open(struct inode *inode, struct file *filp) return -ENOENT; nonseekable_open(inode, filp); + filp->f_mode &= ~FMODE_ATOMIC_POS; u = kzalloc(sizeof(*u), GFP_KERNEL); if (u == NULL) -- 2.1.0