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