On 10/11/23 2:12 PM, Sarthak Kukreti wrote: > Only call truncate_bdev_range() if the fallocate mode is > supported. This fixes a bug where data in the pagecache > could be invalidated if the fallocate() was called on the > block device with an invalid mode. Fix looks fine, but would be nicer if we didn't have to duplicate the truncate_bdev_range() in each switch clause. Can we check this upfront instead? Also, please wrap commit messages at 72-74 chars. -- Jens Axboe