source: trunk/server/common/patches/openafs-linux-3.1-zalloc.patch @ 2159

Last change on this file since 2159 was 2066, checked in by achernya, 11 years ago
Merge branches/fc15-dev to trunk
File size: 1.2 KB
  • src/afs/LINUX/osi_vfsops.c

    From e7669883d5124f85bad6840a4e8280e4de32f7a5 Mon Sep 17 00:00:00 2001
    From: Marc Dionne <marc.c.dionne@gmail.com>
    Date: Mon, 21 Nov 2011 21:27:06 -0500
    Subject: [PATCH] Linux: make sure backing_dev_info is zeroed
    
    The afs backing_dev_info structure is allocated dynamically
    without zeroing out the contents.  In particular there's no
    guarantee that congested_fn is NULL, causing spurious oopses
    when bdi_congested in the kernel tries to call it.
    
    (adapted from commit 8e97cf6f215d5575c63d86eaec59031399f4beda)
    
    Change-Id: I83755b6bb5ec2fada7e077c00d3d8edf8af1cae4
    ---
     src/afs/LINUX/osi_vfsops.c |    1 +
     1 files changed, 1 insertions(+), 0 deletions(-)
    
    diff --git a/src/afs/LINUX/osi_vfsops.c b/src/afs/LINUX/osi_vfsops.c
    index d32720f..0d41bc7 100644
    a b afs_fill_super(struct super_block *sb, void *data, int silent) 
    114114
    115115    /* used for inodes backing_dev_info field, also */
    116116    afs_backing_dev_info = osi_Alloc(sizeof(struct backing_dev_info));
     117    memset(afs_backing_dev_info, 0, sizeof(struct backing_dev_info));
    117118#if defined(HAVE_LINUX_BDI_INIT)
    118119    bdi_init(afs_backing_dev_info);
    119120#endif
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