staging: lustre: hsm: copy start error should set HP_FLAG_COMPLETED

If an error occurs when initializing a HSM request, in
ll_ioc_copy_start(), the PROGRESS message, sent to coordinator, should
carry the error code but also HP_FLAG_COMPLETED to mark the request as
finished (with error). If not, the Coordinator will ignore this
message and consider the request is still running.
Signed-off-by: Aurelien Degremont <aurelien.degremont@cea.fr>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3685
Reviewed-on: http://review.whamcloud.com/7265Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/llite/dir.c

@@ -958,6 +958,9 @@ static int ll_ioc_copy_start(struct super_block *sb, struct hsm_copy *copy)
 	}
 
 progress:
+	/* On error, the request should be considered as completed */
+	if (hpk.hpk_errval > 0)
+		hpk.hpk_flags |= HP_FLAG_COMPLETED;
 	rc = obd_iocontrol(LL_IOC_HSM_PROGRESS, sbi->ll_md_exp, sizeof(hpk),
 			   &hpk, NULL);