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path: root/drivers/md/dm-cache-target.c
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Diffstat (limited to 'drivers/md/dm-cache-target.c')
-rw-r--r--drivers/md/dm-cache-target.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 780a61bc6cc0..28c5de8eca4a 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -3329,13 +3329,6 @@ static int cache_iterate_devices(struct dm_target *ti,
return r;
}
-static bool origin_dev_supports_discard(struct block_device *origin_bdev)
-{
- struct request_queue *q = bdev_get_queue(origin_bdev);
-
- return blk_queue_discard(q);
-}
-
/*
* If discard_passdown was enabled verify that the origin device
* supports discards. Disable discard_passdown if not.
@@ -3349,7 +3342,7 @@ static void disable_passdown_if_not_supported(struct cache *cache)
if (!cache->features.discard_passdown)
return;
- if (!origin_dev_supports_discard(origin_bdev))
+ if (!bdev_max_discard_sectors(origin_bdev))
reason = "discard unsupported";
else if (origin_limits->max_discard_sectors < cache->sectors_per_block)