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| author | Shaohua Li <shli@fb.com> | 2016-01-06 23:37:15 +0100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.com> | 2016-01-14 01:49:43 +0100 |
| commit | 16a43f6a65002ba9a5b063764b4ad5d288a1c15e (patch) | |
| tree | ab7fa60d536626a106cab0130b42b49db311aa02 | |
| parent | MD: add journal with array suspended (diff) | |
| download | linux-16a43f6a65002ba9a5b063764b4ad5d288a1c15e.tar.xz linux-16a43f6a65002ba9a5b063764b4ad5d288a1c15e.zip | |
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>
| -rw-r--r-- | drivers/md/raid5-cache.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c index 7ac035a73281..9531f5f05b93 100644 --- a/drivers/md/raid5-cache.c +++ b/drivers/md/raid5-cache.c @@ -827,6 +827,13 @@ void r5l_quiesce(struct r5l_log *log, int state) return; if (state == 0) { log->in_teardown = 0; + /* + * This is a special case for hotadd. In suspend, the array has + * no journal. In resume, journal is initialized as well as the + * reclaim thread. + */ + if (log->reclaim_thread) + return; log->reclaim_thread = md_register_thread(r5l_reclaim_thread, log->rdev->mddev, "reclaim"); } else if (state == 1) { |