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[PATCH] md: merge raid5 and raid6 code

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There is a lot of commonality between raid5.c and raid6main.c.  This patches
merges both into one module called raid456.  This saves a lot of code, and
paves the way for online raid5->raid6 migrations.

There is still duplication, e.g.  between handle_stripe5 and handle_stripe6.
This will probably be cleaned up later.

Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown
2006-06-26 00:27:38 -07:00
committed by Linus Torvalds
parent 16f17b39f3
commit 16a53ecc35
5 changed files with 1003 additions and 2527 deletions
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include/linux/raid/raid5.h
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@@ -212,6 +212,7 @@ struct raid5_private_data {
mddev_t *mddev;
struct disk_info *spare;
int chunk_size, level, algorithm;
int max_degraded;
int raid_disks, working_disks, failed_disks;
int max_nr_stripes;