Hello, This patchset updates workqueue usages in dm and contains the following six patches. 0001-dm-stripe-drop-kstriped.patch 0002-dm-snap-kill-unused-dm_snapshot-queued_bios_work-and.patch 0003-dm-snap-convert-to-alloc-_ordered-_workqueue.patch 0004-dm-don-t-use-flush_scheduled_work.patch 0005-dm-use-non-reentrant-workqueues-if-equivalent.patch 0006-dm-snap-persistent-make-metadata_wq-multithreaded.patch 0001-0002 drop unnecessary workqueues. 0003-0004 conver to the new APIs. 0005-0006 relax ordering requirement of some workqueues. All patches in this series shouldn't introduce any noticeable difference in work execution ordering. I stayed away from more difficult ones like... * Can the workqueues converted by 0005 be multithreaded instead of non-reentrant? * Does dm-mpath::kmpath_handlerd need WQ_RESCUER? I suspect not but not sure. If not, it can be dropped and system_wq or kmultipathd can be used instead. Another curious thing here is that while activate_path work is queued to kmpath_handlerd, deactivate_path is queued to kmultipathd. Is this intentional? If so, it might be a good idea to comment why it's done that way as it's a bit confusing. * I'm pretty sure workqueues in dm-crypt would benefit from using multithreaded workqueue but people already seem to be working on it so I left it alone. This patchset is on top of 2.6.37-rc5 (6313e3c2). If it needs to be against a different tree, please let me know. The patches are also available in the following git tree. git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git update-dm and contains the following changes. Thanks. drivers/md/dm-crypt.c | 4 ++-- drivers/md/dm-delay.c | 2 +- drivers/md/dm-kcopyd.c | 3 ++- drivers/md/dm-mpath.c | 7 ++++--- drivers/md/dm-raid1.c | 5 +++-- drivers/md/dm-snap-persistent.c | 4 ++-- drivers/md/dm-snap.c | 38 -------------------------------------- drivers/md/dm-stripe.c | 25 ++++++------------------- drivers/md/dm.c | 3 ++- 9 files changed, 22 insertions(+), 69 deletions(-) -- tejun -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
