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md: clear WantReplacement once disk is removed

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We can clear 'WantReplacement' flag directly no
matter it's replacement existed or not since the
semantic is same as before.

Also since the disk is removed from array, then
it is straightforward to remove 'WantReplacement'
flag and the comments in raid10/5 can be removed
as well.

Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
This commit is contained in:
Guoqing Jiang
2017-04-24 15:58:04 +08:00
committed by Shaohua Li
parent 296617581e
commit e5bc9c3c54
3 changed files with 8 additions and 15 deletions
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9
drivers/md/raid5.c
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@@ -7603,15 +7603,12 @@ static int raid5_remove_disk(struct mddev *mddev, struct md_rdev *rdev)
* but will never see neither - if they are careful
*/
p->replacement = NULL;
clear_bit(WantReplacement, &rdev->flags);
if (!err)
err = log_modify(conf, p->rdev, true);
} else
/* We might have just removed the Replacement as faulty-
* clear the bit just in case
*/
clear_bit(WantReplacement, &rdev->flags);
}
clear_bit(WantReplacement, &rdev->flags);
abort:
print_raid5_conf(conf);