From cbf462908c8080f47c2a3300072877589dd1275f Mon Sep 17 00:00:00 2001 From: Chris Lalancette Date: Wed, 21 Jul 2010 12:41:45 -0700 Subject: xen/blkback: Flush blkback data when connecting. First cut at flushing blkback data when first connecting blkback. This should avoid the pygrub issues we are experiencing in (RedHat bugzilla) 466681. [ 2.6.18-xen.hg commit 63b4d7f56688 ] Signed-off-by: Chris Lalancette Signed-off-by: Jeremy Fitzhardinge --- drivers/xen/blkback/xenbus.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/xen/blkback/xenbus.c b/drivers/xen/blkback/xenbus.c index c31e5c4..a0534fc 100644 --- a/drivers/xen/blkback/xenbus.c +++ b/drivers/xen/blkback/xenbus.c @@ -91,6 +91,13 @@ static void update_blkif_status(blkif_t *blkif) return; } + err = filemap_write_and_wait(blkif->vbd.bdev->bd_inode->i_mapping); + if (err) { + xenbus_dev_error(blkif->be->dev, err, "block flush"); + return; + } + invalidate_inode_pages2(blkif->vbd.bdev->bd_inode->i_mapping); + blkif->xenblkd = kthread_run(blkif_schedule, blkif, name); if (IS_ERR(blkif->xenblkd)) { err = PTR_ERR(blkif->xenblkd); -- cgit v1.1