[PATCH -next v3 0/5] blk-wbt: minor fix and cleanup

[Yu Kuai]

From: Yu Kuai <yukuai3@xxxxxxxxxx>

Changes in v3:
 - patch 1 from v2 is sent separately, and it's removd from this series.
 - add review tag for all the patches.

Changes in v2:
 - make the code more readable for patch 1
 - add a new attr_group that is only visible for rq based device
 - explain in detail for patch 4
 - add review tag for patch 2,3,5

Yu Kuai (5):
  blk-wbt: don't create wbt sysfs entry if CONFIG_BLK_WBT is disabled
  blk-wbt: remove dead code to handle wbt enable/disable with io
    inflight
  blk-wbt: cleanup rwb_enabled() and wbt_disabled()
  blk-iocost: move wbt_enable/disable_default() out of spinlock
  blk-sysfs: add a new attr_group for blk_mq

 block/blk-iocost.c |   7 +-
 block/blk-sysfs.c  | 181 ++++++++++++++++++++++++++-------------------
 block/blk-wbt.c    |  21 +-----
 block/blk-wbt.h    |  19 -----
 4 files changed, 110 insertions(+), 118 deletions(-)

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2.39.2