staging/lustre/hsm: Add hsm_release feature.
HSM Release is one of the key feature of HSM. To perform HSM
release, clients need to acquire the file lease exclusivelt and
flush dirty cache from clients. A special close REQ will be sent
to the MDT to release the lease and get rid of OST objects.
Lustre-change: http://review.whamcloud.com/7028
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-1333
Signed-off-by: Aurelien Degremont <aurelien.degremont@cea.fr>
Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index 8373778..0b43251 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -800,10 +800,27 @@
{
struct obd_device *obd = class_exp2obd(exp);
struct ptlrpc_request *req;
- int rc;
+ struct req_format *req_fmt;
+ int rc;
+ int saved_rc = 0;
+
+
+ req_fmt = &RQF_MDS_CLOSE;
+ if (op_data->op_bias & MDS_HSM_RELEASE) {
+ req_fmt = &RQF_MDS_RELEASE_CLOSE;
+
+ /* allocate a FID for volatile file */
+ rc = mdc_fid_alloc(exp, &op_data->op_fid2, op_data);
+ if (rc < 0) {
+ CERROR("%s: "DFID" failed to allocate FID: %d\n",
+ obd->obd_name, PFID(&op_data->op_fid1), rc);
+ /* save the errcode and proceed to close */
+ saved_rc = rc;
+ }
+ }
*request = NULL;
- req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_CLOSE);
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp), req_fmt);
if (req == NULL)
return -ENOMEM;
@@ -893,7 +910,7 @@
}
*request = req;
mdc_close_handle_reply(req, op_data, rc);
- return rc;
+ return rc < 0 ? rc : saved_rc;
}
int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,