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[PATCH] md: convert 'faulty' and 'in_sync' fields to bits in 'flags' field

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This has the advantage of removing the confusion caused by 'rdev_t' and
'mddev_t' both having 'in_sync' fields.

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 2005-11-08 21:39:31 -08:00 • committed by Linus Torvalds
parent ba22dcbf10
commit b2d444d7ad
8 changed files with 146 additions and 144 deletions
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8
include/linux/raid/md_k.h
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@ -117,10 +117,10 @@ struct mdk_rdev_s
* It can never have faulty==1, in_sync==1
* This reduces the burden of testing multiple flags in many cases
*/
int faulty; /* if faulty do not issue IO requests */
int in_sync; /* device is a full member of the array */
unsigned long flags; /* Should include faulty and in_sync here. */
unsigned long flags;
#define Faulty 1 /* device is known to have a fault */
#define In_sync 2 /* device is in_sync with rest of array */
#define WriteMostly 4 /* Avoid reading if at all possible */
int desc_nr; /* descriptor index in the superblock */
@ -247,7 +247,7 @@ struct mddev_s
static inline void rdev_dec_pending(mdk_rdev_t *rdev, mddev_t *mddev)
{
int faulty = rdev->faulty;
int faulty = test_bit(Faulty, &rdev->flags);
if (atomic_dec_and_test(&rdev->nr_pending) && faulty)
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
}