linux-kernel - [PATCH 2/6] LBS: fix uninitialized swapper

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Date:	Fri, 21 Sep 2007 21:45:05 +0100 (BST)
From:	Hugh Dickins <hugh@...itas.com>
To:	Christoph Lameter <clameter@....com>
cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 2/6] LBS: fix uninitialized swapper_space

Swapping crashed immediately: must initialize new fields of swapper_space.

Signed-off-by: Hugh Dickins <hugh@...itas.com>

--- 2.6.23-rc6-lbs/mm/swap_state.c	2007-07-26 19:49:58.000000000 +0100
+++ linux/mm/swap_state.c	2007-09-13 20:00:45.000000000 +0100
@@ -42,6 +42,10 @@ struct address_space swapper_space = {
 	.a_ops		= &swap_aops,
 	.i_mmap_nonlinear = LIST_HEAD_INIT(swapper_space.i_mmap_nonlinear),
 	.backing_dev_info = &swap_backing_dev_info,
+#ifdef CONFIG_LARGE_BLOCKSIZE
+	.shift		= PAGE_SHIFT,
+	.offset_mask	= PAGE_SIZE - 1,
+#endif
 };
 
 #define INC_CACHE_INFO(x)	do { swap_cache_info.x++; } while (0)
-
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