blk-core: use pr_warn_ratelimited() in bio_check_ro()
authorYu Kuai <yukuai3@huawei.com>
Tue, 7 Nov 2023 11:12:47 +0000 (19:12 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 20 Nov 2023 10:52:17 +0000 (11:52 +0100)
commit46c541fa66809d166427f8c465d126ff90c6dfcd
tree09691ed820889e2dfc9ab9283a41150103b2b3f4
parent4e9b3ec84dc97909876641dad14e0a2300d6c2a3
blk-core: use pr_warn_ratelimited() in bio_check_ro()

[ Upstream commit 1b0a151c10a6d823f033023b9fdd9af72a89591b ]

If one of the underlying disks of raid or dm is set to read-only, then
each io will generate new log, which will cause message storm. This
environment is indeed problematic, however we can't make sure our
naive custormer won't do this, hence use pr_warn_ratelimited() to
prevent message storm in this case.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Fixes: 57e95e4670d1 ("block: fix and cleanup bio_check_ro")
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20231107111247.2157820-1-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
block/blk-core.c