Commit 2a745b14 authored Feb 13, 2013 by Arne Jansen Committed by Chris Mason Feb 14, 2013

Btrfs: fix crash in log replay with qgroups enabled



When replaying a log tree with qgroups enabled, tree_mod_log_rewind does a
sanity-check of the number of items against the maximum possible number.
It calculates that number with the nodesize of fs_root. Unfortunately
fs_root is not yet set at this stage. So instead use the nodesize from
tree_root, which is already initialized.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

parent 1a65e24b

fs/btrfs/ctree.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1222,7 +1222,7 @@ tree_mod_log_rewind(struct btrfs_fs_info fs_info, struct extent_buffer eb,

	__tree_mod_log_rewind(eb_rewin, time_seq, tm);		__tree_mod_log_rewind(eb_rewin, time_seq, tm);
	WARN_ON(btrfs_header_nritems(eb_rewin) >		WARN_ON(btrfs_header_nritems(eb_rewin) >
	BTRFS_NODEPTRS_PER_BLOCK(fs_info->fs_root));		BTRFS_NODEPTRS_PER_BLOCK(fs_info->tree_root));

	return eb_rewin;		return eb_rewin;
	}		}