Hi all, I've recently got a report where a file system can write to a read-only block device, and while I've not found the root cause yet, it is very clear that we should not prevents writes to read-only at all. This did in fact get fixed 5 years ago, but Linus reverted it as older lvm2 tools relying on this broken behavior. This series tries to restore it, although I'm still worried about thee older lvm2 tools to be honest. Question to the device mapper maintainers: is the any good way to work around that behavior in device mapper if needed instead of leaving the core block layer and drivers exposed? Diffstat: block/blk-core.c | 20 ++++++++------------ include/linux/blkdev.h | 1 - 2 files changed, 8 insertions(+), 13 deletions(-)
