diff options
author | Mike Snitzer <snitzer@kernel.org> | 2023-04-14 19:32:20 +0300 |
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committer | Mike Snitzer <snitzer@kernel.org> | 2023-04-14 19:32:20 +0300 |
commit | f7995089c508a5a11b0491c7b348d5c07217a4e8 (patch) | |
tree | 7c4b41a1e04d0afc1128168677678cc2712024c8 /drivers/md/dm.c | |
parent | 13f6facf3faeed34ca381aef4c9b153c7aed3972 (diff) | |
download | linux-f7995089c508a5a11b0491c7b348d5c07217a4e8.tar.xz |
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 <snitzer@kernel.org>
Diffstat (limited to 'drivers/md/dm.c')
-rw-r--r-- | drivers/md/dm.c | 20 |
1 files changed, 9 insertions, 11 deletions
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); @@ -2312,17 +2321,6 @@ struct target_type *dm_get_immutable_target_type(struct mapped_device *md) } /* - * 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 */ int dm_setup_md_queue(struct mapped_device *md, struct dm_table *t) |