dm cache: Remove unused btracker_nr_writebacks_queued

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@treblig.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

diff --git a/drivers/md/dm-cache-background-tracker.c b/drivers/md/dm-cache-background-tracker.c
index f3051bd7d2df0782e035d66f4582069cbd4b18b4..b4165f172d62f54b423f0eb9ccb89d0870d62bd6 100644 (file)
--- a/drivers/md/dm-cache-background-tracker.c
+++ b/drivers/md/dm-cache-background-tracker.c
@@ -143,12 +143,6 @@ 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 09c8fc59f7bb7b349734a428992025aae3cb9eb3..47156c14a44abfdb550300a29d5e65a759351d86 100644 (file)
--- a/drivers/md/dm-cache-background-tracker.h
+++ b/drivers/md/dm-cache-background-tracker.h
@@ -50,7 +50,6 @@ 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);
 
 /*