block-dev: enable writeback cgroup support
block_dev's .writepages/.writepage already handles wbc_init_bio/wbc_account_io. We only set the SB_I_CGROUPWB bit to suppport writeback cgroup support. Signed-off-by:Shaohua Li <shli@fb.com> Acked-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
Jens Axboe <axboe@fb.com>
parent
e9137d4b
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