mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 14:06:03 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
43 lines
912 B
C
43 lines
912 B
C
#ifndef _MULTIPATH_H
|
|
#define _MULTIPATH_H
|
|
|
|
#include <linux/raid/md.h>
|
|
|
|
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
|