From: Yu Kuai <yukuai3@xxxxxxxxxx> Changes in v5: - use rcu_dereference_protected() instead of rcu_access_pointer() where rcu_read_lock/unlock is not required. - add patch 4,5 to handle that bitmap timeout is set multiple times. Changes in v4: - remove patch 2 from v3 - fix sparse errors and warnings from v3, in order to do that, all access to md_thread need to be modified, patch 2-4 is splited to avoid a huge patch. Changes in v3: - remove patch 3 from v2 - use rcu instead of a new lock Changes in v2: - fix a compile error for md-cluster in patch 2 - replace spin_lock/unlock with spin_lock/unlock_irq in patch 5 - don't wake up inside the new lock in md wakeup_thread in patch 5 Yu Kuai (6): md: pass a md_thread pointer to md_register_thread() md: factor out a helper to wake up md_thread directly dm-raid: remove useless checking in raid_message() md/bitmap: always wake up md_thread in timeout_store md/bitmap: factor out a helper to set timeout md: protect md_thread with rcu drivers/md/dm-raid.c | 4 +- drivers/md/md-bitmap.c | 50 +++++++++++------ drivers/md/md-cluster.c | 11 ++-- drivers/md/md-multipath.c | 6 +-- drivers/md/md.c | 110 ++++++++++++++++++++------------------ drivers/md/md.h | 15 +++--- drivers/md/raid1.c | 9 ++-- drivers/md/raid1.h | 2 +- drivers/md/raid10.c | 25 ++++----- drivers/md/raid10.h | 2 +- drivers/md/raid5-cache.c | 20 +++---- drivers/md/raid5.c | 19 +++---- drivers/md/raid5.h | 2 +- 13 files changed, 148 insertions(+), 127 deletions(-) -- 2.39.2
