On Thu, 11 Nov 2021 17:52:38 +0900, Shin'ichiro Kawasaki wrote:
> When BLKRESETZONE ioctl and data read race, the data read leaves stale
> page cache. The commit e5113505904e ("block: Discard page cache of zone
> reset target range") added page cache truncation to avoid stale page
> cache after the ioctl. However, the stale page cache still can be read
> during the reset zone operation for the ioctl. To avoid the stale page
> cache completely, hold invalidate_lock of the block device file mapping.
>
> [...]
Applied, thanks!
[1/1] block: Hold invalidate_lock in BLKRESETZONE ioctl
commit: 86399ea071099ec8ee0a83ac9ad67f7df96a50ad
Best regards,
--
Jens Axboe
