source: branches/fc15-dev/server/common/patches/openafs-linux-3.1-zalloc.patch

Last change on this file was 2062, checked in by geofft, 13 years ago
openafs: One last patch for Linux 3.1 support Marc Dionne says, "other than that I don't see anything missing in 1.6 for 3.1". Taken from http://gerrit.openafs.org/6104
File size: 1.2 KB
RevLine 
[2062]1From e7669883d5124f85bad6840a4e8280e4de32f7a5 Mon Sep 17 00:00:00 2001
2From: Marc Dionne <marc.c.dionne@gmail.com>
3Date: Mon, 21 Nov 2011 21:27:06 -0500
4Subject: [PATCH] Linux: make sure backing_dev_info is zeroed
5
6The afs backing_dev_info structure is allocated dynamically
7without zeroing out the contents.  In particular there's no
8guarantee that congested_fn is NULL, causing spurious oopses
9when bdi_congested in the kernel tries to call it.
10
11(adapted from commit 8e97cf6f215d5575c63d86eaec59031399f4beda)
12
13Change-Id: I83755b6bb5ec2fada7e077c00d3d8edf8af1cae4
14---
15 src/afs/LINUX/osi_vfsops.c |    1 +
16 1 files changed, 1 insertions(+), 0 deletions(-)
17
18diff --git a/src/afs/LINUX/osi_vfsops.c b/src/afs/LINUX/osi_vfsops.c
19index d32720f..0d41bc7 100644
20--- a/src/afs/LINUX/osi_vfsops.c
21+++ b/src/afs/LINUX/osi_vfsops.c
22@@ -114,6 +114,7 @@ afs_fill_super(struct super_block *sb, void *data, int silent)
23 
24     /* used for inodes backing_dev_info field, also */
25     afs_backing_dev_info = osi_Alloc(sizeof(struct backing_dev_info));
26+    memset(afs_backing_dev_info, 0, sizeof(struct backing_dev_info));
27 #if defined(HAVE_LINUX_BDI_INIT)
28     bdi_init(afs_backing_dev_info);
29 #endif
30--
311.7.2.5
32
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