From e7669883d5124f85bad6840a4e8280e4de32f7a5 Mon Sep 17 00:00:00 2001 From: Marc Dionne 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/src/afs/LINUX/osi_vfsops.c +++ b/src/afs/LINUX/osi_vfsops.c @@ -114,6 +114,7 @@ afs_fill_super(struct super_block *sb, void *data, int silent) /* used for inodes backing_dev_info field, also */ afs_backing_dev_info = osi_Alloc(sizeof(struct backing_dev_info)); + memset(afs_backing_dev_info, 0, sizeof(struct backing_dev_info)); #if defined(HAVE_LINUX_BDI_INIT) bdi_init(afs_backing_dev_info); #endif -- 1.7.2.5