From 75f141aaf48e13812b4fee914a66f6fce28b543f Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Tue, 23 May 2017 16:48:41 -0700 Subject: target/tcm_loop: Use target_submit_tmr() instead of open-coding this function Use target_submit_tmr() instead of open-coding this function. The only functional change is that TMFs are now added to sess_cmd_list, something the current code does not do. This behavior change is a bug fix because it makes LUN RESETs wait for other TMFs that are in progress for the same LUN. Signed-off-by: Bart Van Assche Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: David Disseldorp Signed-off-by: Nicholas Bellinger --- drivers/target/loopback/tcm_loop.c | 32 +++----------------------------- 1 file changed, 3 insertions(+), 29 deletions(-) (limited to 'drivers/target') diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 27f912747113..8cf556b4c5ca 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -218,7 +218,6 @@ static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg, { struct se_cmd *se_cmd = NULL; struct se_session *se_sess; - struct se_portal_group *se_tpg; struct tcm_loop_nexus *tl_nexus; struct tcm_loop_cmd *tl_cmd = NULL; int ret = TMR_FUNCTION_FAILED, rc; @@ -242,40 +241,15 @@ static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg, init_completion(&tl_cmd->tmr_done); se_cmd = &tl_cmd->tl_se_cmd; - se_tpg = &tl_tpg->tl_se_tpg; se_sess = tl_tpg->tl_nexus->se_sess; - /* - * Initialize struct se_cmd descriptor from target_core_mod infrastructure - */ - transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, 0, - DMA_NONE, TCM_SIMPLE_TAG, - &tl_cmd->tl_sense_buf[0]); - rc = core_tmr_alloc_req(se_cmd, NULL, tmr, GFP_KERNEL); + rc = target_submit_tmr(se_cmd, se_sess, tl_cmd->tl_sense_buf, lun, + NULL, tmr, GFP_KERNEL, task, 0 /*flags*/); if (rc < 0) goto release; - - if (tmr == TMR_ABORT_TASK) - se_cmd->se_tmr_req->ref_task_tag = task; - - /* - * Locate the underlying TCM struct se_lun - */ - if (transport_lookup_tmr_lun(se_cmd, lun) < 0) { - ret = TMR_LUN_DOES_NOT_EXIST; - goto release; - } - /* - * Queue the TMR to TCM Core and sleep waiting for - * tcm_loop_queue_tm_rsp() to wake us up. - */ - transport_generic_handle_tmr(se_cmd); wait_for_completion(&tl_cmd->tmr_done); - /* - * The TMR LUN_RESET has completed, check the response status and - * then release allocations. - */ ret = se_cmd->se_tmr_req->response; + release: if (se_cmd) transport_generic_free_cmd(se_cmd, 1); -- cgit v1.2.3