[Suspend2][ 02/35] [Suspend2] Filewriter set_devinfo patch.

[Nigel Cunningham <nigel@suspend2.net>]

Tell the block io routines which device and blocks to use.

Signed-off-by: Nigel Cunningham <nigel@suspend2.net>

 kernel/power/suspend_file.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/kernel/power/suspend_file.c b/kernel/power/suspend_file.c
index 525e482..36db6b8 100644
--- a/kernel/power/suspend_file.c
+++ b/kernel/power/suspend_file.c
@@ -94,3 +94,14 @@ enum {
 	MARK_RESUME_ATTEMPTED,
 };
 
+static void set_devinfo(struct block_device *bdev, int target_blkbits)
+{
+	devinfo.bdev = bdev;
+	if (!target_blkbits) {
+		devinfo.bmap_shift = devinfo.blocks_per_page = 0;
+	} else {
+		devinfo.bmap_shift = target_blkbits - 9;
+		devinfo.blocks_per_page = (1 << (PAGE_SHIFT - target_blkbits));
+	}
+}
+

--
Nigel Cunningham		nigel at suspend2 dot net
-
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