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[v2,03/20] Rename scsi_softirq_done() into scsi_complete()

Message ID 20210415220826.29438-4-bvanassche@acm.org
State New
Headers show
Series SCSI patches for kernel v5.13 | expand

Commit Message

Bart Van Assche April 15, 2021, 10:08 p.m. UTC 
Commit 320ae51feed5 ("blk-mq: new multi-queue block IO queueing mechanism";
v3.13) introduced a code path that calls the blk-mq completion function from
interrupt context. scsi-mq was introduced by commit d285203cf647 ("scsi:
add support for a blk-mq based I/O path."; v3.17). Since the introduction of
scsi-mq scsi_softirq_done() can be called from interrupt context. Because
that made the name of that function misleading, rename it into
scsi_complete().

Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/scsi_lib.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 985ed427445f..c4d6157e8051 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1434,7 +1434,11 @@  static bool scsi_mq_lld_busy(struct request_queue *q)
 	return false;
 }
 
-static void scsi_softirq_done(struct request *rq)
+/*
+ * Block layer request completion callback. May be called from interrupt
+ * context.
+ */
+static void scsi_complete(struct request *rq)
 {
 	struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
 	int disposition;
@@ -1889,7 +1893,7 @@  static const struct blk_mq_ops scsi_mq_ops_no_commit = {
 	.get_budget	= scsi_mq_get_budget,
 	.put_budget	= scsi_mq_put_budget,
 	.queue_rq	= scsi_queue_rq,
-	.complete	= scsi_softirq_done,
+	.complete	= scsi_complete,
 	.timeout	= scsi_timeout,
 #ifdef CONFIG_BLK_DEBUG_FS
 	.show_rq	= scsi_show_rq,
@@ -1919,7 +1923,7 @@  static const struct blk_mq_ops scsi_mq_ops = {
 	.put_budget	= scsi_mq_put_budget,
 	.queue_rq	= scsi_queue_rq,
 	.commit_rqs	= scsi_commit_rqs,
-	.complete	= scsi_softirq_done,
+	.complete	= scsi_complete,
 	.timeout	= scsi_timeout,
 #ifdef CONFIG_BLK_DEBUG_FS
 	.show_rq	= scsi_show_rq,