From 8a6d48c0542876eb3acfc0970c0ab7872db08d5f Mon Sep 17 00:00:00 2001 From: Zheng Da Date: Sun, 6 Dec 2009 05:26:23 +0100 Subject: check in the original version of dde linux26. --- .../contrib/include/linux/raid/multipath.h | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 libdde_linux26/contrib/include/linux/raid/multipath.h (limited to 'libdde_linux26/contrib/include/linux/raid/multipath.h') diff --git a/libdde_linux26/contrib/include/linux/raid/multipath.h b/libdde_linux26/contrib/include/linux/raid/multipath.h new file mode 100644 index 00000000..6f53fc17 --- /dev/null +++ b/libdde_linux26/contrib/include/linux/raid/multipath.h @@ -0,0 +1,42 @@ +#ifndef _MULTIPATH_H +#define _MULTIPATH_H + +#include + +struct multipath_info { + mdk_rdev_t *rdev; +}; + +struct multipath_private_data { + mddev_t *mddev; + struct multipath_info *multipaths; + int raid_disks; + int working_disks; + spinlock_t device_lock; + struct list_head retry_list; + + mempool_t *pool; +}; + +typedef struct multipath_private_data multipath_conf_t; + +/* + * this is the only point in the RAID code where we violate + * C type safety. mddev->private is an 'opaque' pointer. + */ +#define mddev_to_conf(mddev) ((multipath_conf_t *) mddev->private) + +/* + * this is our 'private' 'collective' MULTIPATH buffer head. + * it contains information about what kind of IO operations were started + * for this MULTIPATH operation, and about their status: + */ + +struct multipath_bh { + mddev_t *mddev; + struct bio *master_bio; + struct bio bio; + int path; + struct list_head retry_list; +}; +#endif -- cgit v1.2.3