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由 Tejun Heo 提交于
wakeup_flusher_threads() currently only starts writeback on the root wb (bdi_writeback). For cgroup writeback support, update the function to wake up all wbs and distribute the number of pages to write according to the proportion of each wb's write bandwidth, which is implemented in wb_split_bdi_pages(). Signed-off-by: NTejun Heo <tj@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jan Kara <jack@suse.cz> Signed-off-by: NJens Axboe <axboe@fb.com>
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