Hi, This series mainly fix the kernel panic when increase hardware queue, and also fix some other misc issue. Memleak 1: __blk_mq_alloc_rq_maps __blk_mq_alloc_rq_map if fail blk_mq_free_rq_map Actually, __blk_mq_alloc_rq_map alloc both map and request, here also need free request. Patch1: fix Memleak 1. Patch2: fix prev_nr_hw_queues issue, need be saved before change. Patch3: From Ming, fix potential kernel panic when increase hardware queue. Patch4~5: rename two function, because these two function alloc both map and request, and keep in pair with blk_mq_free_map_and_request(s). Changes since V5: * fix 80 char per line for patch-4 Changes since V4: * use another way to fix kernel panic when increase hardware queue, this patch from Ming. Changes since V3: * record patchset, fix issue fistly then rename. * rename function to blk_mq_alloc_map_and_request Changes since V2: * rename some functions name and fix memleak when free map and requests * Not free new allocated map and request, they will be relased when tagset gone Changes since V1: * Add fix for potential kernel panic when increase hardware queue Ming Lei (1): block: alloc map and request for new hardware queue Weiping Zhang (4): block: free both rq_map and request block: save previous hardware queue count before udpate block: rename __blk_mq_alloc_rq_map block: rename blk_mq_alloc_rq_maps block/blk-mq.c | 37 +++++++++++++++++++------------------ 1 file changed, 19 insertions(+), 18 deletions(-) -- 2.18.2
