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md: don't allow "-sync" to be set for device in an active array.

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If an array is active, devices can be marked 'faulty', but simply
removing the 'sync' flag is wrong.  That only makes sense
for an array which is not active (and is probably only useful
for testing anyway).

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2014-09-30 15:24:25 +10:00
parent f72ffdd686
commit e1960f8c5c
1 changed files with 6 additions and 4 deletions
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10
drivers/md/md.c
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@ -2642,10 +2642,12 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
set_bit(In_sync, &rdev->flags);
err = 0;
} else if (cmd_match(buf, "-insync") && rdev->raid_disk >= 0) {
clear_bit(In_sync, &rdev->flags);
rdev->saved_raid_disk = rdev->raid_disk;
rdev->raid_disk = -1;
err = 0;
if (rdev->mddev->pers == NULL) {
clear_bit(In_sync, &rdev->flags);
rdev->saved_raid_disk = rdev->raid_disk;
rdev->raid_disk = -1;
err = 0;
}
} else if (cmd_match(buf, "write_error")) {
set_bit(WriteErrorSeen, &rdev->flags);
err = 0;