From def2b339b422070ecb99298a80e4b15033adc0ce Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 23 Dec 2013 20:38:30 +0000 Subject: target: Add protection SGLs to target_submit_cmd_map_sgls This patch adds support to target_submit_cmd_map_sgls() for accepting 'sgl_prot' + 'sgl_prot_count' parameters for DIF protection information. Note the passed parameters are stored at se_cmd->t_prot_sg and se_cmd->t_prot_nents respectively. Also, update tcm_loop and vhost-scsi fabrics usage of target_submit_cmd_map_sgls() to take into account the new parameters. Cc: Martin K. Petersen Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Sagi Grimberg Cc: Or Gerlitz Signed-off-by: Nicholas Bellinger --- drivers/vhost/scsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/vhost') diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index f175629..84488a8 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -889,7 +889,7 @@ static void tcm_vhost_submission_work(struct work_struct *work) cmd->tvc_lun, cmd->tvc_exp_data_len, cmd->tvc_task_attr, cmd->tvc_data_direction, TARGET_SCF_ACK_KREF, sg_ptr, cmd->tvc_sgl_count, - sg_bidi_ptr, sg_no_bidi); + sg_bidi_ptr, sg_no_bidi, NULL, 0); if (rc < 0) { transport_send_check_condition_and_sense(se_cmd, TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0); -- cgit v1.1 From 6f6b5d1ec56acdeab0503d2b823f6f88a0af493e Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Sun, 19 Jan 2014 08:26:37 +0000 Subject: percpu_ida: Make percpu_ida_alloc + callers accept task state bitmask This patch changes percpu_ida_alloc() + callers to accept task state bitmask for prepare_to_wait() for code like target/iscsi that needs it for interruptible sleep, that is provided in a subsequent patch. It now expects TASK_UNINTERRUPTIBLE when the caller is able to sleep waiting for a new tag, or TASK_RUNNING when the caller cannot sleep, and is forced to return a negative value when no tags are available. v2 changes: - Include blk-mq + tcm_fc + vhost/scsi + target/iscsi changes - Drop signal_pending_state() call v3 changes: - Only call prepare_to_wait() + finish_wait() when != TASK_RUNNING (PeterZ) Reported-by: Linus Torvalds Cc: Linus Torvalds Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Jens Axboe Signed-off-by: Kent Overstreet Cc: #3.12+ Signed-off-by: Nicholas Bellinger --- drivers/vhost/scsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/vhost') diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 84488a8..2d084fb 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -728,7 +728,7 @@ vhost_scsi_get_tag(struct vhost_virtqueue *vq, } se_sess = tv_nexus->tvn_se_sess; - tag = percpu_ida_alloc(&se_sess->sess_tag_pool, GFP_ATOMIC); + tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING); if (tag < 0) { pr_err("Unable to obtain tag for tcm_vhost_cmd\n"); return ERR_PTR(-ENOMEM); -- cgit v1.1