Hi Jens, This version adds Reviewed-by tag from Johannes. Thanks, Guoqing PATCH V3: https://lore.kernel.org/linux-block/7f78132a-affc-eb03-735a-4da43e143b6e@xxxxxxxxxxxxxxx/T/#t * reorgnize the patchset per Johannes's suggestion. PATCH V2: https://lore.kernel.org/linux-block/20210201012727.28305-1-guoqing.jiang@xxxxxxxxxxxxxxx/T/#t *. remove BLK_ADDITIONAL_DISKSTAT option per Christoph's comment. *. move blk_queue_io_extra_stat into blk_additional_{latency,sector} per Christoph's comment. *. simplify blk_additional_latency by pass duration time directly. PATCH V1: https://marc.info/?l=linux-block&m=161176000024443&w=2 * add Jack's reviewed-by. RFC V4: https://marc.info/?l=linux-block&m=161027198729158&w=2 * rebase with latest code. RFC V3: https://marc.info/?l=linux-block&m=159730633416534&w=2 * Move the #ifdef CONFIG_BLK_ADDITIONAL_DISKSTAT into the function body per Johannes's comment. * Tweak the output of two tables to make they are more intuitive RFC V2: https://marc.info/?l=linux-block&m=159467483514062&w=2 * don't call ktime_get_ns and drop unnecessary patches. * add io_extra_stats to avoid potential overhead. RFC V1: https://marc.info/?l=linux-block&m=159419516730386&w=2 Guoqing Jiang (3): block: add io_extra_stats node block: add a statistic table for io latency block: add a statistic table for io sector Documentation/ABI/testing/sysfs-block | 26 ++++++++++ Documentation/block/queue-sysfs.rst | 5 ++ block/blk-core.c | 43 ++++++++++++++++ block/blk-sysfs.c | 3 ++ block/genhd.c | 74 +++++++++++++++++++++++++++ include/linux/blkdev.h | 2 + include/linux/part_stat.h | 6 +++ 7 files changed, 159 insertions(+) -- 2.17.1
