linux-kernel - [PATCH 15/18] dm kcopyd: introduce the function submit

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Message-ID: <alpine.LRH.2.02.1410220932130.31351@file01.intranet.prod.int.rdu2.redhat.com>
Date:	Wed, 22 Oct 2014 09:32:38 -0400 (EDT)
From:	Mikulas Patocka <mpatocka@...hat.com>
To:	"Alasdair G. Kergon" <agk@...hat.com>,
	Mike Snitzer <msnitzer@...hat.com>,
	Jonathan Brassow <jbrassow@...hat.com>,
	Edward Thornber <thornber@...hat.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Jens Axboe <axboe@...nel.dk>,
	Christoph Hellwig <hch@...radead.org>
cc:	dm-devel@...hat.com, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org
Subject: [PATCH 15/18] dm kcopyd: introduce the function submit_job

We move some code to a function submit_job. It is needed for the next
patch that calls submit_job from another place.

Signed-off-by: Mikulas Patocka <mpatocka@...hat.com>

---
 drivers/md/dm-kcopyd.c |   19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

Index: linux-3.16-rc5/drivers/md/dm-kcopyd.c
===================================================================
--- linux-3.16-rc5.orig/drivers/md/dm-kcopyd.c	2014-07-14 16:45:23.000000000 +0200
+++ linux-3.16-rc5/drivers/md/dm-kcopyd.c	2014-07-14 17:28:36.000000000 +0200
@@ -698,6 +698,17 @@ static void split_job(struct kcopyd_job 
 	}
 }
 
+static void submit_job(struct kcopyd_job *job)
+{
+	if (job->source.count <= SUB_JOB_SIZE)
+		dispatch_job(job);
+	else {
+		mutex_init(&job->lock);
+		job->progress = 0;
+		split_job(job);
+	}
+}
+
 int dm_kcopyd_copy(struct dm_kcopyd_client *kc, struct dm_io_region *from,
 		   unsigned int num_dests, struct dm_io_region *dests,
 		   unsigned int flags, dm_kcopyd_notify_fn fn, void *context)
@@ -746,13 +757,7 @@ int dm_kcopyd_copy(struct dm_kcopyd_clie
 	job->context = context;
 	job->master_job = job;
 
-	if (job->source.count <= SUB_JOB_SIZE)
-		dispatch_job(job);
-	else {
-		mutex_init(&job->lock);
-		job->progress = 0;
-		split_job(job);
-	}
+	submit_job(job);
 
 	return 0;
 }

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