This is a note to let you know that I've just added the patch titled block: fix and cleanup bio_check_ro to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: block-fix-and-cleanup-bio_check_ro.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 57e95e4670d1126c103305bcf34a9442f49f6d6a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig <hch@xxxxxx> Date: Fri, 4 Mar 2022 19:00:56 +0100 Subject: block: fix and cleanup bio_check_ro From: Christoph Hellwig <hch@xxxxxx> 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@xxxxxx> Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx> Link: https://lore.kernel.org/r/20220304180105.409765-2-hch@xxxxxx Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> Signed-off-by: Fedor Pchelkin <pchelkin@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- block/blk-core.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2179,10 +2179,7 @@ static inline bool bio_check_ro(struct b if (op_is_flush(bio->bi_opf) && !bio_sectors(bio)) return false; - - WARN_ONCE(1, - "generic_make_request: Trying to write " - "to read-only block-device %s (partno %d)\n", + pr_warn("Trying to write to read-only block-device %s (partno %d)\n", bio_devname(bio, b), part->partno); /* Older lvm-tools actually trigger this */ return false; Patches currently in stable-queue which might be from hch@xxxxxx are queue-4.19/block-fix-and-cleanup-bio_check_ro.patch