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[PATCH] md: allow md to load a superblock with feature-bit '1' set

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As this is used to flag an internal bitmap.

Also, introduce symbolic names for feature bits.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown 2005-09-09 16:23:51 -07:00 • committed by Linus Torvalds
parent 7b1e35f6d6
commit 71c0805cb4
2 changed files with 8 additions and 3 deletions
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5
include/linux/raid/md_p.h
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@ -238,5 +238,10 @@ struct mdp_superblock_1 {
__u16 dev_roles[0]; /* role in array, or 0xffff for a spare, or 0xfffe for faulty */
};
/* feature_map bits */
#define MD_FEATURE_BITMAP_OFFSET 1
#define MD_FEATURE_ALL 1
#endif