linux-kernel - [PATCH 1/9] dm cache: Remove unused btracker_nr_writebacks

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Message-ID: <20241003011554.266654-2-linux@treblig.org>
Date: Thu,  3 Oct 2024 02:15:46 +0100
From: linux@...blig.org
To: agk@...hat.com,
	snitzer@...nel.org,
	mpatocka@...hat.com,
	msakai@...hat.com
Cc: dm-devel@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH 1/9] dm cache: Remove unused btracker_nr_writebacks_queued

From: "Dr. David Alan Gilbert" <linux@...blig.org>

btracker_nr_writebacks_queued() has been unused since commit
2e63309507c8 ("dm cache policy smq: don't do any writebacks unless IDLE")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/md/dm-cache-background-tracker.c | 6 ------
 drivers/md/dm-cache-background-tracker.h | 1 -
 2 files changed, 7 deletions(-)

diff --git a/drivers/md/dm-cache-background-tracker.c b/drivers/md/dm-cache-background-tracker.c
index 9c5308298cf1..504299bb7310 100644
--- a/drivers/md/dm-cache-background-tracker.c
+++ b/drivers/md/dm-cache-background-tracker.c
@@ -156,12 +156,6 @@ static void update_stats(struct background_tracker *b, struct policy_work *w, in
 	}
 }
 
-unsigned int btracker_nr_writebacks_queued(struct background_tracker *b)
-{
-	return atomic_read(&b->pending_writebacks);
-}
-EXPORT_SYMBOL_GPL(btracker_nr_writebacks_queued);
-
 unsigned int btracker_nr_demotions_queued(struct background_tracker *b)
 {
 	return atomic_read(&b->pending_demotes);
diff --git a/drivers/md/dm-cache-background-tracker.h b/drivers/md/dm-cache-background-tracker.h
index 5b8f5c667b81..7e66ad58efa6 100644
--- a/drivers/md/dm-cache-background-tracker.h
+++ b/drivers/md/dm-cache-background-tracker.h
@@ -42,7 +42,6 @@ struct background_tracker *btracker_create(unsigned int max_work);
  */
 void btracker_destroy(struct background_tracker *b);
 
-unsigned int btracker_nr_writebacks_queued(struct background_tracker *b);
 unsigned int btracker_nr_demotions_queued(struct background_tracker *b);
 
 /*
-- 
2.46.2