From f7995089c508a5a11b0491c7b348d5c07217a4e8 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 14 Apr 2023 12:32:20 -0400 Subject: dm: unexport dm_get_queue_limits() There are no dm_get_queue_limits() callers outside of DM core and there shouldn't be. Also, remove its BUG_ON(!atomic_read(&md->holders)) to micro-optimize __process_abnormal_io(). Signed-off-by: Mike Snitzer --- drivers/md/dm.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) (limited to 'drivers/md/dm.c') diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 244ebb8c316b..3b694ba3a106 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1072,6 +1072,15 @@ static void dm_io_dec_pending(struct dm_io *io, blk_status_t error) __dm_io_dec_pending(io); } +/* + * The queue_limits are only valid as long as you have a reference + * count on 'md'. But _not_ imposing verification to avoid atomic_read(), + */ +static inline struct queue_limits *dm_get_queue_limits(struct mapped_device *md) +{ + return &md->queue->limits; +} + void disable_discard(struct mapped_device *md) { struct queue_limits *limits = dm_get_queue_limits(md); @@ -2311,17 +2320,6 @@ struct target_type *dm_get_immutable_target_type(struct mapped_device *md) return md->immutable_target_type; } -/* - * The queue_limits are only valid as long as you have a reference - * count on 'md'. - */ -struct queue_limits *dm_get_queue_limits(struct mapped_device *md) -{ - BUG_ON(!atomic_read(&md->holders)); - return &md->queue->limits; -} -EXPORT_SYMBOL_GPL(dm_get_queue_limits); - /* * Setup the DM device's queue based on md's type */ -- cgit v1.2.3