Changes in v5: - add comments in patch 4 - clear bytes/io_skipped in throtl_start_new_slice_with_credit() in patch 4 - and cleanup patches 5-8 Changes in v4: - add reviewed-by tag for patch 1 - add patch 2,3 - use a different way to fix io hung in patch 4 Changes in v3: - fix a check in patch 1 - fix link err in patch 2 on 32-bit platform - handle overflow in patch 2 Changes in v2: - use a new solution suggested by Ming - change the title of patch 1 - add patch 2 Patch 1 fix that blk-throttle can't work if multiple bios are throttle, Patch 2 fix overflow while calculating wait time Patch 3,4 fix io hung due to configuration updates. Patch 5-8 are cleanup patches, there are no functional changes, just some places that I think can be optimized during code review. Previous version: v1: https://lore.kernel.org/all/20220517134909.2910251-1-yukuai3@xxxxxxxxxx/ v2: https://lore.kernel.org/all/20220518072751.1188163-1-yukuai3@xxxxxxxxxx/ v3: https://lore.kernel.org/all/20220519085811.879097-1-yukuai3@xxxxxxxxxx/ v4: https://lore.kernel.org/all/20220523082633.2324980-1-yukuai3@xxxxxxxxxx/ Yu Kuai (8): blk-throttle: fix that io throttle can only work for single bio blk-throttle: prevent overflow while calculating wait time blk-throttle: factor out code to calculate ios/bytes_allowed blk-throttle: fix io hung due to config updates blk-throttle: use 'READ/WRITE' instead of '0/1' blk-throttle: calling throtl_dequeue/enqueue_tg in pairs blk-throttle: cleanup tg_update_disptime() blk-throttle: clean up flag 'THROTL_TG_PENDING' block/blk-throttle.c | 158 +++++++++++++++++++++++++++++-------------- block/blk-throttle.h | 16 +++-- 2 files changed, 120 insertions(+), 54 deletions(-) -- 2.31.1
