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author | Andy Grover <agrover@redhat.com> | 2011-07-19 10:26:37 +0000 |
---|---|---|
committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-07-22 09:37:43 +0000 |
commit | 5951146dea1ac8ff2f177477c907084d63913cad (patch) | |
tree | 699cb7c498ca1799ae3e349cb4360171d9fa63e0 /drivers/target/target_core_pr.c | |
parent | f22c119683e73498d8126581a1be75e1b7a339a3 (diff) | |
download | linux-stable-5951146dea1ac8ff2f177477c907084d63913cad.tar.gz linux-stable-5951146dea1ac8ff2f177477c907084d63913cad.tar.bz2 linux-stable-5951146dea1ac8ff2f177477c907084d63913cad.zip |
target: More core cleanups from AGrover (round 2)
This patch contains the squashed version of second round of target core
cleanups and simplifications and Andy and Co. It also contains a handful
of fixes to address bugs the original series and other minor cleanups.
Here is the condensed shortlog:
target: Remove unneeded casts to void*
target: Rename get_lun_for_{cmd,tmr} to lookup_{cmd,tmr}_lun
target: Make t_task a member of se_cmd, not a pointer
target: Handle functions returning "-2"
target: Use cmd->se_dev over cmd->se_lun->lun_se_dev
target: Embed qr in struct se_cmd
target: Replace embedded struct se_queue_req with a list_head
target: Rename list_heads that are nodes in struct se_cmd to "*_node"
target: Fold transport_device_setup_cmd() into lookup_{tmr,cmd}_lun()
target: Make t_mem_list and t_mem_list_bidi members of t_task
target: Add comment & cleanup transport_map_sg_to_mem()
target: Remove unneeded checks in transport_free_pages()
(Roland: Fix se_queue_req removal leftovers OOPs)
(nab: Fix transport_lookup_tmr_lun failure case)
(nab: Fix list_empty(&cmd->t_task.t_mem_bidi_list) inversion bugs)
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_pr.c')
-rw-r--r-- | drivers/target/target_core_pr.c | 86 |
1 files changed, 43 insertions, 43 deletions
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 27a7525971b9..19406a3474c3 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -157,8 +157,8 @@ static int core_scsi2_reservation_reserve(struct se_cmd *cmd) struct se_session *sess = cmd->se_sess; struct se_portal_group *tpg = sess->se_tpg; - if ((cmd->t_task->t_task_cdb[1] & 0x01) && - (cmd->t_task->t_task_cdb[1] & 0x02)) { + if ((cmd->t_task.t_task_cdb[1] & 0x01) && + (cmd->t_task.t_task_cdb[1] & 0x02)) { printk(KERN_ERR "LongIO and Obselete Bits set, returning" " ILLEGAL_REQUEST\n"); return PYX_TRANSPORT_ILLEGAL_REQUEST; @@ -216,7 +216,7 @@ int core_scsi2_emulate_crh(struct se_cmd *cmd) struct se_subsystem_dev *su_dev = cmd->se_dev->se_sub_dev; struct t10_pr_registration *pr_reg; struct t10_reservation *pr_tmpl = &su_dev->t10_pr; - unsigned char *cdb = &cmd->t_task->t_task_cdb[0]; + unsigned char *cdb = &cmd->t_task.t_task_cdb[0]; int crh = (su_dev->t10_pr.res_type == SPC3_PERSISTENT_RESERVATIONS); int conflict = 0; @@ -1471,7 +1471,7 @@ static int core_scsi3_decode_spec_i_port( int all_tg_pt, int aptpl) { - struct se_device *dev = cmd->se_lun->lun_se_dev; + struct se_device *dev = cmd->se_dev; struct se_port *tmp_port; struct se_portal_group *dest_tpg = NULL, *tmp_tpg; struct se_session *se_sess = cmd->se_sess; @@ -1482,7 +1482,7 @@ static int core_scsi3_decode_spec_i_port( struct list_head tid_dest_list; struct pr_transport_id_holder *tidh_new, *tidh, *tidh_tmp; struct target_core_fabric_ops *tmp_tf_ops; - unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf; + unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf; unsigned char *ptr, *i_str = NULL, proto_ident, tmp_proto_ident; char *iport_ptr = NULL, dest_iport[64], i_buf[PR_REG_ISID_ID_LEN]; u32 tpdl, tid_len = 0; @@ -1509,7 +1509,7 @@ static int core_scsi3_decode_spec_i_port( tidh_new->dest_node_acl = se_sess->se_node_acl; tidh_new->dest_se_deve = local_se_deve; - local_pr_reg = __core_scsi3_alloc_registration(cmd->se_lun->lun_se_dev, + local_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev, se_sess->se_node_acl, local_se_deve, l_isid, sa_res_key, all_tg_pt, aptpl); if (!(local_pr_reg)) { @@ -1741,7 +1741,7 @@ static int core_scsi3_decode_spec_i_port( * and then call __core_scsi3_add_registration() in the * 2nd loop which will never fail. */ - dest_pr_reg = __core_scsi3_alloc_registration(cmd->se_lun->lun_se_dev, + dest_pr_reg = __core_scsi3_alloc_registration(cmd->se_dev, dest_node_acl, dest_se_deve, iport_ptr, sa_res_key, all_tg_pt, aptpl); if (!(dest_pr_reg)) { @@ -1787,7 +1787,7 @@ static int core_scsi3_decode_spec_i_port( prf_isid = core_pr_dump_initiator_port(dest_pr_reg, &i_buf[0], PR_REG_ISID_ID_LEN); - __core_scsi3_add_registration(cmd->se_lun->lun_se_dev, dest_node_acl, + __core_scsi3_add_registration(cmd->se_dev, dest_node_acl, dest_pr_reg, 0, 0); printk(KERN_INFO "SPC-3 PR [%s] SPEC_I_PT: Successfully" @@ -2071,7 +2071,7 @@ static int core_scsi3_emulate_pro_register( int ignore_key) { struct se_session *se_sess = cmd->se_sess; - struct se_device *dev = cmd->se_lun->lun_se_dev; + struct se_device *dev = cmd->se_dev; struct se_dev_entry *se_deve; struct se_lun *se_lun = cmd->se_lun; struct se_portal_group *se_tpg; @@ -2117,7 +2117,7 @@ static int core_scsi3_emulate_pro_register( * Port Endpoint that the PRO was received from on the * Logical Unit of the SCSI device server. */ - ret = core_scsi3_alloc_registration(cmd->se_lun->lun_se_dev, + ret = core_scsi3_alloc_registration(cmd->se_dev, se_sess->se_node_acl, se_deve, isid_ptr, sa_res_key, all_tg_pt, aptpl, ignore_key, 0); @@ -2145,7 +2145,7 @@ static int core_scsi3_emulate_pro_register( */ if (!(aptpl)) { pr_tmpl->pr_aptpl_active = 0; - core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, NULL, 0); + core_scsi3_update_and_write_aptpl(cmd->se_dev, NULL, 0); printk("SPC-3 PR: Set APTPL Bit Deactivated for" " REGISTER\n"); return 0; @@ -2155,10 +2155,10 @@ static int core_scsi3_emulate_pro_register( * update the APTPL metadata information using its * preallocated *pr_reg->pr_aptpl_buf. */ - pr_reg = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev, + pr_reg = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl, se_sess); - ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, + ret = core_scsi3_update_and_write_aptpl(cmd->se_dev, &pr_reg->pr_aptpl_buf[0], pr_tmpl->pr_aptpl_buf_len); if (!(ret)) { @@ -2223,7 +2223,7 @@ static int core_scsi3_emulate_pro_register( */ if (!(sa_res_key)) { pr_holder = core_scsi3_check_implict_release( - cmd->se_lun->lun_se_dev, pr_reg); + cmd->se_dev, pr_reg); if (pr_holder < 0) { kfree(pr_aptpl_buf); core_scsi3_put_pr_reg(pr_reg); @@ -2260,7 +2260,7 @@ static int core_scsi3_emulate_pro_register( /* * Release the calling I_T Nexus registration now.. */ - __core_scsi3_free_registration(cmd->se_lun->lun_se_dev, pr_reg, + __core_scsi3_free_registration(cmd->se_dev, pr_reg, NULL, 1); /* * From spc4r17, section 5.7.11.3 Unregistering @@ -2315,7 +2315,7 @@ static int core_scsi3_emulate_pro_register( * READ_KEYS service action. */ pr_reg->pr_res_generation = core_scsi3_pr_generation( - cmd->se_lun->lun_se_dev); + cmd->se_dev); pr_reg->pr_res_key = sa_res_key; printk("SPC-3 PR [%s] REGISTER%s: Changed Reservation" " Key for %s to: 0x%016Lx PRgeneration:" @@ -2398,7 +2398,7 @@ static int core_scsi3_pro_reserve( /* * Locate the existing *pr_reg via struct se_node_acl pointers */ - pr_reg = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev, se_sess->se_node_acl, + pr_reg = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl, se_sess); if (!(pr_reg)) { printk(KERN_ERR "SPC-3 PR: Unable to locate" @@ -2527,7 +2527,7 @@ static int core_scsi3_pro_reserve( spin_unlock(&dev->dev_reservation_lock); if (pr_tmpl->pr_aptpl_active) { - ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, + ret = core_scsi3_update_and_write_aptpl(cmd->se_dev, &pr_reg->pr_aptpl_buf[0], pr_tmpl->pr_aptpl_buf_len); if (!(ret)) @@ -2758,7 +2758,7 @@ static int core_scsi3_emulate_pro_release( write_aptpl: if (pr_tmpl->pr_aptpl_active) { - ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, + ret = core_scsi3_update_and_write_aptpl(cmd->se_dev, &pr_reg->pr_aptpl_buf[0], pr_tmpl->pr_aptpl_buf_len); if (!(ret)) @@ -2783,7 +2783,7 @@ static int core_scsi3_emulate_pro_clear( /* * Locate the existing *pr_reg via struct se_node_acl pointers */ - pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev, + pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl, se_sess); if (!(pr_reg_n)) { printk(KERN_ERR "SPC-3 PR: Unable to locate" @@ -2849,7 +2849,7 @@ static int core_scsi3_emulate_pro_clear( cmd->se_tfo->get_fabric_name()); if (pr_tmpl->pr_aptpl_active) { - core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, NULL, 0); + core_scsi3_update_and_write_aptpl(cmd->se_dev, NULL, 0); printk(KERN_INFO "SPC-3 PR: Updated APTPL metadata" " for CLEAR\n"); } @@ -2954,7 +2954,7 @@ static int core_scsi3_pro_preempt( u64 sa_res_key, int abort) { - struct se_device *dev = cmd->se_lun->lun_se_dev; + struct se_device *dev = cmd->se_dev; struct se_dev_entry *se_deve; struct se_node_acl *pr_reg_nacl; struct se_session *se_sess = cmd->se_sess; @@ -2969,7 +2969,7 @@ static int core_scsi3_pro_preempt( return PYX_TRANSPORT_LU_COMM_FAILURE; se_deve = &se_sess->se_node_acl->device_list[cmd->orig_fe_lun]; - pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev, se_sess->se_node_acl, + pr_reg_n = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl, se_sess); if (!(pr_reg_n)) { printk(KERN_ERR "SPC-3 PR: Unable to locate" @@ -3111,7 +3111,7 @@ static int core_scsi3_pro_preempt( spin_unlock(&dev->dev_reservation_lock); if (pr_tmpl->pr_aptpl_active) { - ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, + ret = core_scsi3_update_and_write_aptpl(cmd->se_dev, &pr_reg_n->pr_aptpl_buf[0], pr_tmpl->pr_aptpl_buf_len); if (!(ret)) @@ -3121,7 +3121,7 @@ static int core_scsi3_pro_preempt( } core_scsi3_put_pr_reg(pr_reg_n); - core_scsi3_pr_generation(cmd->se_lun->lun_se_dev); + core_scsi3_pr_generation(cmd->se_dev); return 0; } /* @@ -3247,7 +3247,7 @@ static int core_scsi3_pro_preempt( } if (pr_tmpl->pr_aptpl_active) { - ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, + ret = core_scsi3_update_and_write_aptpl(cmd->se_dev, &pr_reg_n->pr_aptpl_buf[0], pr_tmpl->pr_aptpl_buf_len); if (!(ret)) @@ -3256,7 +3256,7 @@ static int core_scsi3_pro_preempt( } core_scsi3_put_pr_reg(pr_reg_n); - core_scsi3_pr_generation(cmd->se_lun->lun_se_dev); + core_scsi3_pr_generation(cmd->se_dev); return 0; } @@ -3298,7 +3298,7 @@ static int core_scsi3_emulate_pro_register_and_move( int unreg) { struct se_session *se_sess = cmd->se_sess; - struct se_device *dev = cmd->se_lun->lun_se_dev; + struct se_device *dev = cmd->se_dev; struct se_dev_entry *se_deve, *dest_se_deve = NULL; struct se_lun *se_lun = cmd->se_lun; struct se_node_acl *pr_res_nacl, *pr_reg_nacl, *dest_node_acl = NULL; @@ -3307,7 +3307,7 @@ static int core_scsi3_emulate_pro_register_and_move( struct target_core_fabric_ops *dest_tf_ops = NULL, *tf_ops; struct t10_pr_registration *pr_reg, *pr_res_holder, *dest_pr_reg; struct t10_reservation *pr_tmpl = &dev->se_sub_dev->t10_pr; - unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf; + unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf; unsigned char *initiator_str; char *iport_ptr = NULL, dest_iport[64], i_buf[PR_REG_ISID_ID_LEN]; u32 tid_len, tmp_tid_len; @@ -3330,7 +3330,7 @@ static int core_scsi3_emulate_pro_register_and_move( * * Locate the existing *pr_reg via struct se_node_acl pointers */ - pr_reg = core_scsi3_locate_pr_reg(cmd->se_lun->lun_se_dev, se_sess->se_node_acl, + pr_reg = core_scsi3_locate_pr_reg(cmd->se_dev, se_sess->se_node_acl, se_sess); if (!(pr_reg)) { printk(KERN_ERR "SPC-3 PR: Unable to locate PR_REGISTERED" @@ -3612,7 +3612,7 @@ after_iport_check: dest_pr_reg = __core_scsi3_locate_pr_reg(dev, dest_node_acl, iport_ptr); if (!(dest_pr_reg)) { - ret = core_scsi3_alloc_registration(cmd->se_lun->lun_se_dev, + ret = core_scsi3_alloc_registration(cmd->se_dev, dest_node_acl, dest_se_deve, iport_ptr, sa_res_key, 0, aptpl, 2, 1); if (ret != 0) { @@ -3683,12 +3683,12 @@ after_iport_check: */ if (!(aptpl)) { pr_tmpl->pr_aptpl_active = 0; - core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, NULL, 0); + core_scsi3_update_and_write_aptpl(cmd->se_dev, NULL, 0); printk("SPC-3 PR: Set APTPL Bit Deactivated for" " REGISTER_AND_MOVE\n"); } else { pr_tmpl->pr_aptpl_active = 1; - ret = core_scsi3_update_and_write_aptpl(cmd->se_lun->lun_se_dev, + ret = core_scsi3_update_and_write_aptpl(cmd->se_dev, &dest_pr_reg->pr_aptpl_buf[0], pr_tmpl->pr_aptpl_buf_len); if (!(ret)) @@ -3723,7 +3723,7 @@ static unsigned long long core_scsi3_extract_reservation_key(unsigned char *cdb) */ static int core_scsi3_emulate_pr_out(struct se_cmd *cmd, unsigned char *cdb) { - unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf; + unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf; u64 res_key, sa_res_key; int sa, scope, type, aptpl; int spec_i_pt = 0, all_tg_pt = 0, unreg = 0; @@ -3827,10 +3827,10 @@ static int core_scsi3_emulate_pr_out(struct se_cmd *cmd, unsigned char *cdb) */ static int core_scsi3_pri_read_keys(struct se_cmd *cmd) { - struct se_device *se_dev = cmd->se_lun->lun_se_dev; + struct se_device *se_dev = cmd->se_dev; struct se_subsystem_dev *su_dev = se_dev->se_sub_dev; struct t10_pr_registration *pr_reg; - unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf; + unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf; u32 add_len = 0, off = 8; if (cmd->data_length < 8) { @@ -3882,10 +3882,10 @@ static int core_scsi3_pri_read_keys(struct se_cmd *cmd) */ static int core_scsi3_pri_read_reservation(struct se_cmd *cmd) { - struct se_device *se_dev = cmd->se_lun->lun_se_dev; + struct se_device *se_dev = cmd->se_dev; struct se_subsystem_dev *su_dev = se_dev->se_sub_dev; struct t10_pr_registration *pr_reg; - unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf; + unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf; u64 pr_res_key; u32 add_len = 16; /* Hardcoded to 16 when a reservation is held. */ @@ -3963,9 +3963,9 @@ static int core_scsi3_pri_read_reservation(struct se_cmd *cmd) */ static int core_scsi3_pri_report_capabilities(struct se_cmd *cmd) { - struct se_device *dev = cmd->se_lun->lun_se_dev; + struct se_device *dev = cmd->se_dev; struct t10_reservation *pr_tmpl = &dev->se_sub_dev->t10_pr; - unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf; + unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf; u16 add_len = 8; /* Hardcoded to 8. */ if (cmd->data_length < 6) { @@ -4014,13 +4014,13 @@ static int core_scsi3_pri_report_capabilities(struct se_cmd *cmd) */ static int core_scsi3_pri_read_full_status(struct se_cmd *cmd) { - struct se_device *se_dev = cmd->se_lun->lun_se_dev; + struct se_device *se_dev = cmd->se_dev; struct se_node_acl *se_nacl; struct se_subsystem_dev *su_dev = se_dev->se_sub_dev; struct se_portal_group *se_tpg; struct t10_pr_registration *pr_reg, *pr_reg_tmp; struct t10_reservation *pr_tmpl = &se_dev->se_sub_dev->t10_pr; - unsigned char *buf = (unsigned char *)cmd->t_task->t_task_buf; + unsigned char *buf = (unsigned char *)cmd->t_task.t_task_buf; u32 add_desc_len = 0, add_len = 0, desc_len, exp_desc_len; u32 off = 8; /* off into first Full Status descriptor */ int format_code = 0; @@ -4174,7 +4174,7 @@ static int core_scsi3_emulate_pr_in(struct se_cmd *cmd, unsigned char *cdb) int core_scsi3_emulate_pr(struct se_cmd *cmd) { - unsigned char *cdb = &cmd->t_task->t_task_cdb[0]; + unsigned char *cdb = &cmd->t_task.t_task_cdb[0]; struct se_device *dev = cmd->se_dev; /* * Following spc2r20 5.5.1 Reservations overview: |