diff options
| author | Neil Brown <neilb@cse.unsw.edu.au> | 2002-10-30 00:04:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@penguin.transmeta.com> | 2002-10-30 00:04:30 -0800 |
| commit | d571b4837480e5370e90b140ca623b355385da9b (patch) | |
| tree | 634884a5ad9b3edaa57d68f7ec2e436621afad83 /include/linux/raid/md_k.h | |
| parent | 6932d2d52dc1335d1cdccec485dd074013753555 (diff) | |
[PATCH] md: factor out MD superblock handling code
Define an interface for interpreting and updating superblocks
so we can more easily define new formats.
With this patch, (almost) all superblock layout information is
locating in a small set of routines dedicated to superblock
handling. This will allow us to provide a similar set for
a different format.
The two exceptions are:
1/ autostart_array where the devices listed in the superblock
are searched for.
2/ raid5 'knows' the maximum number of devices for
compute_parity.
These will be addressed in a later patch.
Diffstat (limited to 'include/linux/raid/md_k.h')
| -rw-r--r-- | include/linux/raid/md_k.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index 453324c18bdd..f658735d28b2 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -151,8 +151,9 @@ struct mdk_rdev_s struct block_device *bdev; /* block device handle */ struct page *sb_page; - mdp_super_t *sb; + int sb_loaded; sector_t sb_offset; + int preferred_minor; /* autorun support */ /* A device can be in one of three states based on two flags: * Not working: faulty==1 in_sync==0 @@ -196,6 +197,7 @@ struct mddev_s time_t ctime, utime; int level, layout; int raid_disks; + int max_disks; unsigned long state; sector_t size; /* used size of component devices */ __u64 events; |