Hi all, dm-multipath still carries around it's own queueing framework for implementing 'queue_if_no_path'. However, there is no real reason for this; we could as well push back the requests onto the request_queue. In doing so we can also reduce the memory pressure during fail_if_no_path scenarios, as we don't have to allocate a context for each request when it need to be requeued. Changes since v3: - Include dm_md_get_queue(), as suggested from Mike Snitzer - Call __pg_init_all_paths() in pg_init_done() to handle pg_init_required correctly, as suggested by Jun'ichi Nomura Changes since v4: - Fixup calls to __pg_init_all_paths() as found by Jun'ichi Nomura - Update description for 'remove process_queue_ios' patch Hannes Reinecke (5): dm-multipath: Do not call pg_init twice dm-multipath: push back requests instead of queueing dm-multipath: remove process_queued_ios() dm-multipath: reduce memory pressure during requeuing dm-multipath: remove map_io() Mike Snitzer (1): dm: implement dm_md_get_queue() drivers/md/dm-mpath.c | 208 ++++++++++++++---------------------------- drivers/md/dm-table.c | 14 +++ drivers/md/dm.c | 5 + drivers/md/dm.h | 1 + include/linux/device-mapper.h | 5 + 5 files changed, 93 insertions(+), 140 deletions(-) -- 1.7.12.4 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
