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authorPaolo Valente <paolo.valente@linaro.org>2020-02-03 11:41:00 +0100
committerJens Axboe <axboe@kernel.dk>2020-02-03 06:58:15 -0700
commitc92bddee77353a773f0df76115c1a01877ce1eae (patch)
tree0841c7ba65ae4ea17552a9450d92d2145621afe4 /block
parentdb37a34c563bf4692b36990ae89005c031385e52 (diff)
block, bfq: clarify the goal of bfq_split_bfqq()
The exact, general goal of the function bfq_split_bfqq() is not that apparent. Add a comment to make it clear. Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> Signed-off-by: Paolo Valente <paolo.valente@linaro.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/bfq-iosched.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index fff76c920968..8c436abfaf14 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -5979,6 +5979,8 @@ static void bfq_finish_requeue_request(struct request *rq)
}
/*
+ * Removes the association between the current task and bfqq, assuming
+ * that bic points to the bfq iocontext of the task.
* Returns NULL if a new bfqq should be allocated, or the old bfqq if this
* was the last process referring to that bfqq.
*/