Re: [PATCH v4 2/2] block: warn once for each partition in bio_check_ro()

[Christoph Hellwig]

On Tue, Nov 28, 2023 at 08:30:27PM +0800, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@xxxxxxxxxx>
> 
> Commit 1b0a151c10a6 ("blk-core: use pr_warn_ratelimited() in
> bio_check_ro()") fix message storm by limit the rate, however, there
> will still be lots of message in the long term. Fix it better by warn
> once for each partition.

The new field is in the same dword alignment as bd_make_it_fail and
could in theory corrupt it, at least on alpha.  I guess we're fine,
because if you enable CONFIG_FAIL_MAKE_REQUEST on alpha you're asking
for this.  I still hope we can clean up these non-atomic bools and
replace them with bitops soon.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>