Re: [PATCH v3 1/3] btrfs: use bdev_rw_virt() to read and scratch the disk super block

[Matthew Wilcox]

On Sat, Jan 10, 2026 at 02:26:19PM +1030, Qu Wenruo wrote:
> Furthermore read_cache_page*() can race with device block size setting,
> thus requires extra locking.

What?  There's supposed to be sufficient locking to prevent this.
Is there a bug report I can look at?