From: Christoph Hellwig hch@lst.de
commit 57e95e4670d1126c103305bcf34a9442f49f6d6a upstream.
Don't use a WARN_ON when printing a potentially user triggered condition. Also don't print the partno when the block device name already includes it, and use the %pg specifier to simplify printing the block device name.
Signed-off-by: Christoph Hellwig hch@lst.de Reviewed-by: Chaitanya Kulkarni kch@nvidia.com Reviewed-by: Johannes Thumshirn johannes.thumshirn@wdc.com Link: https://lore.kernel.org/r/20220304180105.409765-2-hch@lst.de Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Fedor Pchelkin pchelkin@ispras.ru Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- block/blk-core.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)
--- a/block/blk-core.c +++ b/block/blk-core.c @@ -698,14 +698,10 @@ static inline bool should_fail_request(s static inline bool bio_check_ro(struct bio *bio) { if (op_is_write(bio_op(bio)) && bdev_read_only(bio->bi_bdev)) { - char b[BDEVNAME_SIZE]; - if (op_is_flush(bio->bi_opf) && !bio_sectors(bio)) return false; - - WARN_ONCE(1, - "Trying to write to read-only block-device %s (partno %d)\n", - bio_devname(bio, b), bio->bi_bdev->bd_partno); + pr_warn("Trying to write to read-only block-device %pg\n", + bio->bi_bdev); /* Older lvm-tools actually trigger this */ return false; }