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Subject[PATCH 0/2] blk-throttle: improve bypassing bios checkings
Date
From: Yu Kuai <yukuai3@huawei.com>

Currently, "tg->has_rules" and "tg->flags & THROTL_TG_HAS_IOPS_LIMIT"
both try to bypass bios that don't need to be throttled, however, they are
a little redundant and both not perfect:

1) "tg->has_rules" only distinguish read and write, but not iops and bps
limit.
2) "tg->flags & THROTL_TG_HAS_IOPS_LIMIT" only check if iops limit
exist, read and write is not distinguished, and bps limit is not
checked.

With this patchset, biowon't be bypassedd if:

1) Bio is read/write, and corresponding read/write iops limit exist.
2) If corresponding iops limit doesn't exist, corresponding bps limit
exist and bio is not throttled before.

Yu Kuai (2):
blk-throttle: remove THROTL_TG_HAS_IOPS_LIMIT
blk-throttle: improve bypassing bios checkings

block/blk-throttle.c | 21 +++++++--------------
block/blk-throttle.h | 28 +++++++++++++++++++---------
2 files changed, 26 insertions(+), 23 deletions(-)

--
2.31.1

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