From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/md/dm-bio-record.h | 40 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 kernel/drivers/md/dm-bio-record.h (limited to 'kernel/drivers/md/dm-bio-record.h') diff --git a/kernel/drivers/md/dm-bio-record.h b/kernel/drivers/md/dm-bio-record.h new file mode 100644 index 000000000..dd3646111 --- /dev/null +++ b/kernel/drivers/md/dm-bio-record.h @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. + * + * This file is released under the GPL. + */ + +#ifndef DM_BIO_RECORD_H +#define DM_BIO_RECORD_H + +#include + +/* + * There are lots of mutable fields in the bio struct that get + * changed by the lower levels of the block layer. Some targets, + * such as multipath, may wish to resubmit a bio on error. The + * functions in this file help the target record and restore the + * original bio state. + */ + +struct dm_bio_details { + struct block_device *bi_bdev; + unsigned long bi_flags; + struct bvec_iter bi_iter; +}; + +static inline void dm_bio_record(struct dm_bio_details *bd, struct bio *bio) +{ + bd->bi_bdev = bio->bi_bdev; + bd->bi_flags = bio->bi_flags; + bd->bi_iter = bio->bi_iter; +} + +static inline void dm_bio_restore(struct dm_bio_details *bd, struct bio *bio) +{ + bio->bi_bdev = bd->bi_bdev; + bio->bi_flags = bd->bi_flags; + bio->bi_iter = bd->bi_iter; +} + +#endif -- cgit 1.2.3-korg