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X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 suspectscore=0 bulkscore=0 spamscore=0 mlxlogscore=880 adultscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2306080015 X-Proofpoint-GUID: qvEDSeu3ZiYVHl31NCVuM1rmGCKDqo6X X-Proofpoint-ORIG-GUID: qvEDSeu3ZiYVHl31NCVuM1rmGCKDqo6X X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Dave, > Possibly unintentionally, I didn't call it REQ_OP_PROVISION but that's > what I intended - the operation does not contain data at all. It's an > operation like REQ_OP_DISCARD or REQ_OP_WRITE_ZEROS - it contains a > range of sectors that need to be provisioned (or discarded), and > nothing else. Yep. That's also how SCSI defines it. The act of provisioning a block range is done through an UNMAP command using a special flag. All it does is pin down those LBAs so future writes to them won't result in ENOSPC. -- Martin K. Petersen Oracle Linux Engineering