Files
kernel/include/linux
Bart Van Assche b86d865cb1 blkcg: Make blkg_root_lookup() work for queues in bypass mode
For legacy queues the only call of blkg_root_lookup() happens after
bypass mode has been enabled. Since blkg_lookup() returns NULL for
queues in bypass mode, modify the blkg_root_lookup() such that it
no longer depends on bypass mode. Rename the function into
blk_queue_root_blkg() as suggested by Tejun.

Suggested-by: Tejun Heo <tj@kernel.org>
Fixes: 6bad9b210a ("blkcg: Introduce blkg_root_lookup()")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-08-11 15:41:25 -06:00
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