From: Bart Van Assche <bvanassche@acm.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, Jaegeuk Kim <jaegeuk@kernel.org>,
Christoph Hellwig <hch@lst.de>,
Bart Van Assche <bvanassche@acm.org>,
Damien Le Moal <damien.lemoal@opensource.wdc.com>,
Ming Lei <ming.lei@redhat.com>
Subject: [PATCH v5 05/11] block: mq-deadline: Clean up deadline_check_fifo()
Date: Tue, 16 May 2023 15:33:14 -0700 [thread overview]
Message-ID: <20230516223323.1383342-6-bvanassche@acm.org> (raw)
In-Reply-To: <20230516223323.1383342-1-bvanassche@acm.org>
Change the return type of deadline_check_fifo() from 'int' into 'bool'.
Use time_is_before_eq_jiffies() instead of time_after_eq(). No
functionality has been changed.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Cc: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
block/mq-deadline.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)
diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index 5839a027e0f0..a016cafa54b3 100644
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -272,21 +272,15 @@ static u32 dd_queued(struct deadline_data *dd, enum dd_prio prio)
}
/*
- * deadline_check_fifo returns 0 if there are no expired requests on the fifo,
- * 1 otherwise. Requires !list_empty(&dd->fifo_list[data_dir])
+ * deadline_check_fifo returns true if and only if there are expired requests
+ * in the FIFO list. Requires !list_empty(&dd->fifo_list[data_dir]).
*/
-static inline int deadline_check_fifo(struct dd_per_prio *per_prio,
- enum dd_data_dir data_dir)
+static inline bool deadline_check_fifo(struct dd_per_prio *per_prio,
+ enum dd_data_dir data_dir)
{
struct request *rq = rq_entry_fifo(per_prio->fifo_list[data_dir].next);
- /*
- * rq is expired!
- */
- if (time_after_eq(jiffies, (unsigned long)rq->fifo_time))
- return 1;
-
- return 0;
+ return time_is_before_eq_jiffies((unsigned long)rq->fifo_time);
}
/*
next prev parent reply other threads:[~2023-05-16 22:33 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-16 22:33 [PATCH v5 00/11] mq-deadline: Improve support for zoned block devices Bart Van Assche
2023-05-16 22:33 ` [PATCH v5 01/11] block: Simplify blk_req_needs_zone_write_lock() Bart Van Assche
2023-05-16 23:23 ` Damien Le Moal
2023-05-17 7:36 ` Hannes Reinecke
2023-05-17 10:00 ` Johannes Thumshirn
2023-05-16 22:33 ` [PATCH v5 02/11] block: Fix the type of the second bdev_op_is_zoned_write() argument Bart Van Assche
2023-05-16 23:26 ` Damien Le Moal
2023-05-17 7:37 ` Hannes Reinecke
2023-05-16 22:33 ` [PATCH v5 03/11] block: Introduce op_is_zoned_write() Bart Van Assche
2023-05-16 23:30 ` Damien Le Moal
2023-05-17 0:00 ` Bart Van Assche
2023-05-17 6:45 ` Christoph Hellwig
2023-05-17 6:47 ` Damien Le Moal
2023-05-17 7:37 ` Hannes Reinecke
2023-05-16 22:33 ` [PATCH v5 04/11] block: Introduce blk_rq_is_seq_zoned_write() Bart Van Assche
2023-05-17 0:01 ` Damien Le Moal
2023-05-17 7:38 ` Hannes Reinecke
2023-05-17 10:02 ` Johannes Thumshirn
2023-05-16 22:33 ` Bart Van Assche [this message]
2023-05-17 1:02 ` [PATCH v5 05/11] block: mq-deadline: Clean up deadline_check_fifo() Damien Le Moal
2023-05-17 15:01 ` Bart Van Assche
2023-05-17 22:07 ` Damien Le Moal
2023-05-17 7:39 ` Hannes Reinecke
2023-05-16 22:33 ` [PATCH v5 06/11] block: mq-deadline: Simplify deadline_skip_seq_writes() Bart Van Assche
2023-05-17 7:40 ` Hannes Reinecke
2023-05-16 22:33 ` [PATCH v5 07/11] block: mq-deadline: Improve deadline_skip_seq_writes() Bart Van Assche
2023-05-17 1:06 ` Damien Le Moal
2023-05-17 16:30 ` Bart Van Assche
2023-05-17 22:15 ` Damien Le Moal
2023-05-18 18:48 ` Bart Van Assche
2023-05-17 7:41 ` Hannes Reinecke
2023-05-17 7:55 ` Damien Le Moal
2023-05-16 22:33 ` [PATCH v5 08/11] block: mq-deadline: Reduce lock contention Bart Van Assche
2023-05-17 1:07 ` Damien Le Moal
2023-05-17 6:46 ` Christoph Hellwig
2023-05-17 7:42 ` Hannes Reinecke
2023-05-16 22:33 ` [PATCH v5 09/11] block: mq-deadline: Track the dispatch position Bart Van Assche
2023-05-17 1:13 ` Damien Le Moal
2023-05-17 7:45 ` Hannes Reinecke
2023-05-16 22:33 ` [PATCH v5 10/11] block: mq-deadline: Handle requeued requests correctly Bart Van Assche
2023-05-17 1:22 ` Damien Le Moal
2023-05-17 16:28 ` Bart Van Assche
2023-05-17 22:05 ` Damien Le Moal
2023-05-18 12:58 ` Damien Le Moal
2023-05-17 7:46 ` Hannes Reinecke
2023-05-16 22:33 ` [PATCH v5 11/11] block: mq-deadline: Fix handling of at-head zoned writes Bart Van Assche
2023-05-17 1:24 ` Damien Le Moal
2023-05-17 7:47 ` Hannes Reinecke
2023-05-17 7:53 ` Damien Le Moal
2023-05-17 17:13 ` Bart Van Assche
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