On Tue, 17 May 2022 21:29:13 +0200, Bodo Stroesser wrote:
> In tcmu_blocks_release, lock_page() is called to prevent a race causing
> possible data corruption. Since lock_page() might sleep, calling it
> while holding XArray lock is a bug.
>
> To fix the bug switch to XArray normal API by replacing the xas_for_each
> with xa_for_each_range. Since normal API does its own handling of
> XArray locking, now the xas_lock and xas_unlock around the loop are
> obsolete.
>
> [...]
Applied to 5.19/scsi-queue, thanks!
[1/1] scsi: target: tcmu: Avoid holding XArray lock when calling lock_page
https://git.kernel.org/mkp/scsi/c/325d5c5fb216
--
Martin K. Petersen Oracle Linux Engineering
