raid5-cache: handle journal hotadd in quiesce
Handle journal hotadd in quiesce to avoid creating duplicated threads. Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: NeilBrown <neilb@suse.com>
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@ -827,6 +827,13 @@ void r5l_quiesce(struct r5l_log *log, int state)
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return;
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if (state == 0) {
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log->in_teardown = 0;
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/*
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* This is a special case for hotadd. In suspend, the array has
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* no journal. In resume, journal is initialized as well as the
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* reclaim thread.
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*/
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if (log->reclaim_thread)
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return;
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log->reclaim_thread = md_register_thread(r5l_reclaim_thread,
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log->rdev->mddev, "reclaim");
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} else if (state == 1) {
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