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Commit | Line | Data |
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c66ac9db NB |
1 | /******************************************************************************* |
2 | * Filename: target_core_tmr.c | |
3 | * | |
4 | * This file contains SPC-3 task management infrastructure | |
5 | * | |
4c76251e | 6 | * (c) Copyright 2009-2013 Datera, Inc. |
c66ac9db NB |
7 | * |
8 | * Nicholas A. Bellinger <nab@kernel.org> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
23 | * | |
24 | ******************************************************************************/ | |
25 | ||
c66ac9db NB |
26 | #include <linux/slab.h> |
27 | #include <linux/spinlock.h> | |
28 | #include <linux/list.h> | |
c53181af | 29 | #include <linux/export.h> |
c66ac9db NB |
30 | |
31 | #include <target/target_core_base.h> | |
c4795fb2 CH |
32 | #include <target/target_core_backend.h> |
33 | #include <target/target_core_fabric.h> | |
c66ac9db | 34 | |
e26d99ae | 35 | #include "target_core_internal.h" |
c66ac9db NB |
36 | #include "target_core_alua.h" |
37 | #include "target_core_pr.h" | |
38 | ||
c8e31f26 | 39 | int core_tmr_alloc_req( |
c66ac9db NB |
40 | struct se_cmd *se_cmd, |
41 | void *fabric_tmr_ptr, | |
dd503a5f RD |
42 | u8 function, |
43 | gfp_t gfp_flags) | |
c66ac9db NB |
44 | { |
45 | struct se_tmr_req *tmr; | |
46 | ||
c8e31f26 | 47 | tmr = kzalloc(sizeof(struct se_tmr_req), gfp_flags); |
6708bb27 AG |
48 | if (!tmr) { |
49 | pr_err("Unable to allocate struct se_tmr_req\n"); | |
c8e31f26 | 50 | return -ENOMEM; |
c66ac9db | 51 | } |
c8e31f26 AG |
52 | |
53 | se_cmd->se_cmd_flags |= SCF_SCSI_TMR_CDB; | |
54 | se_cmd->se_tmr_req = tmr; | |
c66ac9db NB |
55 | tmr->task_cmd = se_cmd; |
56 | tmr->fabric_tmr_ptr = fabric_tmr_ptr; | |
57 | tmr->function = function; | |
58 | INIT_LIST_HEAD(&tmr->tmr_list); | |
59 | ||
c8e31f26 | 60 | return 0; |
c66ac9db NB |
61 | } |
62 | EXPORT_SYMBOL(core_tmr_alloc_req); | |
63 | ||
8f832690 | 64 | void core_tmr_release_req(struct se_tmr_req *tmr) |
c66ac9db NB |
65 | { |
66 | struct se_device *dev = tmr->tmr_dev; | |
d050ffb9 | 67 | unsigned long flags; |
c66ac9db | 68 | |
8f832690 JE |
69 | if (dev) { |
70 | spin_lock_irqsave(&dev->se_tmr_lock, flags); | |
a6d9bb1c | 71 | list_del_init(&tmr->tmr_list); |
8f832690 | 72 | spin_unlock_irqrestore(&dev->se_tmr_lock, flags); |
7fd29aa9 NB |
73 | } |
74 | ||
c8e31f26 | 75 | kfree(tmr); |
c66ac9db NB |
76 | } |
77 | ||
73d4e580 | 78 | static int core_tmr_handle_tas_abort(struct se_cmd *cmd, int tas) |
c66ac9db | 79 | { |
0f4a9431 NB |
80 | unsigned long flags; |
81 | bool remove = true, send_tas; | |
c66ac9db NB |
82 | /* |
83 | * TASK ABORTED status (TAS) bit support | |
8f832690 | 84 | */ |
0f4a9431 NB |
85 | spin_lock_irqsave(&cmd->t_state_lock, flags); |
86 | send_tas = (cmd->transport_state & CMD_T_TAS); | |
87 | spin_unlock_irqrestore(&cmd->t_state_lock, flags); | |
88 | ||
89 | if (send_tas) { | |
68259b5a | 90 | remove = false; |
c66ac9db | 91 | transport_send_task_abort(cmd); |
68259b5a | 92 | } |
c66ac9db | 93 | |
73d4e580 | 94 | return transport_cmd_finish_abort(cmd, remove); |
c66ac9db NB |
95 | } |
96 | ||
feae8564 JE |
97 | static int target_check_cdb_and_preempt(struct list_head *list, |
98 | struct se_cmd *cmd) | |
c165f69c | 99 | { |
feae8564 | 100 | struct t10_pr_registration *reg; |
c165f69c | 101 | |
feae8564 JE |
102 | if (!list) |
103 | return 0; | |
104 | list_for_each_entry(reg, list, pr_reg_abort_list) { | |
105 | if (reg->pr_res_key == cmd->pr_res_key) | |
c165f69c JE |
106 | return 0; |
107 | } | |
108 | ||
109 | return 1; | |
110 | } | |
111 | ||
0f4a9431 NB |
112 | static bool __target_check_io_state(struct se_cmd *se_cmd, |
113 | struct se_session *tmr_sess, int tas) | |
febe562c NB |
114 | { |
115 | struct se_session *sess = se_cmd->se_sess; | |
116 | ||
117 | assert_spin_locked(&sess->sess_cmd_lock); | |
118 | WARN_ON_ONCE(!irqs_disabled()); | |
119 | /* | |
120 | * If command already reached CMD_T_COMPLETE state within | |
0f4a9431 NB |
121 | * target_complete_cmd() or CMD_T_FABRIC_STOP due to shutdown, |
122 | * this se_cmd has been passed to fabric driver and will | |
123 | * not be aborted. | |
febe562c NB |
124 | * |
125 | * Otherwise, obtain a local se_cmd->cmd_kref now for TMR | |
126 | * ABORT_TASK + LUN_RESET for CMD_T_ABORTED processing as | |
127 | * long as se_cmd->cmd_kref is still active unless zero. | |
128 | */ | |
129 | spin_lock(&se_cmd->t_state_lock); | |
0f4a9431 NB |
130 | if (se_cmd->transport_state & (CMD_T_COMPLETE | CMD_T_FABRIC_STOP)) { |
131 | pr_debug("Attempted to abort io tag: %llu already complete or" | |
132 | " fabric stop, skipping\n", se_cmd->tag); | |
133 | spin_unlock(&se_cmd->t_state_lock); | |
134 | return false; | |
135 | } | |
1c21a480 NB |
136 | if (se_cmd->transport_state & CMD_T_PRE_EXECUTE) { |
137 | if (se_cmd->scsi_status) { | |
138 | pr_debug("Attempted to abort io tag: %llu early failure" | |
139 | " status: 0x%02x\n", se_cmd->tag, | |
140 | se_cmd->scsi_status); | |
141 | spin_unlock(&se_cmd->t_state_lock); | |
142 | return false; | |
143 | } | |
144 | } | |
0f4a9431 NB |
145 | if (sess->sess_tearing_down || se_cmd->cmd_wait_set) { |
146 | pr_debug("Attempted to abort io tag: %llu already shutdown," | |
febe562c NB |
147 | " skipping\n", se_cmd->tag); |
148 | spin_unlock(&se_cmd->t_state_lock); | |
149 | return false; | |
150 | } | |
151 | se_cmd->transport_state |= CMD_T_ABORTED; | |
0f4a9431 NB |
152 | |
153 | if ((tmr_sess != se_cmd->se_sess) && tas) | |
154 | se_cmd->transport_state |= CMD_T_TAS; | |
155 | ||
febe562c NB |
156 | spin_unlock(&se_cmd->t_state_lock); |
157 | ||
158 | return kref_get_unless_zero(&se_cmd->cmd_kref); | |
159 | } | |
160 | ||
3d28934a NB |
161 | void core_tmr_abort_task( |
162 | struct se_device *dev, | |
163 | struct se_tmr_req *tmr, | |
164 | struct se_session *se_sess) | |
165 | { | |
f81ccb48 | 166 | struct se_cmd *se_cmd; |
3d28934a | 167 | unsigned long flags; |
649ee054 | 168 | u64 ref_tag; |
3d28934a NB |
169 | |
170 | spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); | |
f81ccb48 | 171 | list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) { |
3d28934a NB |
172 | |
173 | if (dev != se_cmd->se_dev) | |
174 | continue; | |
47b1584c | 175 | |
dc0fafda BVA |
176 | /* skip task management functions, including tmr->task_cmd */ |
177 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) | |
47b1584c AL |
178 | continue; |
179 | ||
649ee054 | 180 | ref_tag = se_cmd->tag; |
3d28934a NB |
181 | if (tmr->ref_task_tag != ref_tag) |
182 | continue; | |
183 | ||
649ee054 | 184 | printk("ABORT_TASK: Found referenced %s task_tag: %llu\n", |
3d28934a NB |
185 | se_cmd->se_tfo->get_fabric_name(), ref_tag); |
186 | ||
3a1e7ca6 BVA |
187 | if (!__target_check_io_state(se_cmd, se_sess, 0)) |
188 | continue; | |
189 | ||
3d28934a | 190 | list_del_init(&se_cmd->se_cmd_list); |
3d28934a NB |
191 | spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); |
192 | ||
193 | cancel_work_sync(&se_cmd->work); | |
194 | transport_wait_for_tasks(se_cmd); | |
3d28934a | 195 | |
73d4e580 NB |
196 | if (!transport_cmd_finish_abort(se_cmd, true)) |
197 | target_put_sess_cmd(se_cmd); | |
3d28934a NB |
198 | |
199 | printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for" | |
649ee054 | 200 | " ref_tag: %llu\n", ref_tag); |
3d28934a | 201 | tmr->response = TMR_FUNCTION_COMPLETE; |
c87ba9c4 | 202 | atomic_long_inc(&dev->aborts_complete); |
3d28934a NB |
203 | return; |
204 | } | |
205 | spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); | |
206 | ||
649ee054 | 207 | printk("ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: %lld\n", |
3d28934a NB |
208 | tmr->ref_task_tag); |
209 | tmr->response = TMR_TASK_DOES_NOT_EXIST; | |
c87ba9c4 | 210 | atomic_long_inc(&dev->aborts_no_task); |
3d28934a NB |
211 | } |
212 | ||
d050ffb9 | 213 | static void core_tmr_drain_tmr_list( |
c66ac9db NB |
214 | struct se_device *dev, |
215 | struct se_tmr_req *tmr, | |
d050ffb9 | 216 | struct list_head *preempt_and_abort_list) |
c66ac9db | 217 | { |
d050ffb9 | 218 | LIST_HEAD(drain_tmr_list); |
a6d9bb1c | 219 | struct se_session *sess; |
c66ac9db | 220 | struct se_tmr_req *tmr_p, *tmr_pp; |
d050ffb9 | 221 | struct se_cmd *cmd; |
c66ac9db | 222 | unsigned long flags; |
a6d9bb1c | 223 | bool rc; |
c66ac9db NB |
224 | /* |
225 | * Release all pending and outgoing TMRs aside from the received | |
226 | * LUN_RESET tmr.. | |
227 | */ | |
d050ffb9 | 228 | spin_lock_irqsave(&dev->se_tmr_lock, flags); |
88fb2fa7 | 229 | if (tmr) |
230 | list_del_init(&tmr->tmr_list); | |
c66ac9db | 231 | list_for_each_entry_safe(tmr_p, tmr_pp, &dev->dev_tmr_list, tmr_list) { |
c66ac9db | 232 | cmd = tmr_p->task_cmd; |
6708bb27 AG |
233 | if (!cmd) { |
234 | pr_err("Unable to locate struct se_cmd for TMR\n"); | |
c66ac9db NB |
235 | continue; |
236 | } | |
237 | /* | |
238 | * If this function was called with a valid pr_res_key | |
239 | * parameter (eg: for PROUT PREEMPT_AND_ABORT service action | |
ac75d8be | 240 | * skip non registration key matching TMRs. |
c66ac9db | 241 | */ |
feae8564 | 242 | if (target_check_cdb_and_preempt(preempt_and_abort_list, cmd)) |
c66ac9db | 243 | continue; |
c66ac9db | 244 | |
a6d9bb1c NB |
245 | sess = cmd->se_sess; |
246 | if (WARN_ON_ONCE(!sess)) | |
247 | continue; | |
248 | ||
249 | spin_lock(&sess->sess_cmd_lock); | |
d050ffb9 | 250 | spin_lock(&cmd->t_state_lock); |
0f4a9431 NB |
251 | if (!(cmd->transport_state & CMD_T_ACTIVE) || |
252 | (cmd->transport_state & CMD_T_FABRIC_STOP)) { | |
d050ffb9 | 253 | spin_unlock(&cmd->t_state_lock); |
a6d9bb1c | 254 | spin_unlock(&sess->sess_cmd_lock); |
c66ac9db NB |
255 | continue; |
256 | } | |
257 | if (cmd->t_state == TRANSPORT_ISTATE_PROCESSING) { | |
d050ffb9 | 258 | spin_unlock(&cmd->t_state_lock); |
a6d9bb1c | 259 | spin_unlock(&sess->sess_cmd_lock); |
c66ac9db NB |
260 | continue; |
261 | } | |
0f4a9431 NB |
262 | if (sess->sess_tearing_down || cmd->cmd_wait_set) { |
263 | spin_unlock(&cmd->t_state_lock); | |
264 | spin_unlock(&sess->sess_cmd_lock); | |
265 | continue; | |
266 | } | |
a6d9bb1c | 267 | cmd->transport_state |= CMD_T_ABORTED; |
d050ffb9 NB |
268 | spin_unlock(&cmd->t_state_lock); |
269 | ||
a6d9bb1c | 270 | rc = kref_get_unless_zero(&cmd->cmd_kref); |
a6d9bb1c NB |
271 | if (!rc) { |
272 | printk("LUN_RESET TMR: non-zero kref_get_unless_zero\n"); | |
0f4a9431 | 273 | spin_unlock(&sess->sess_cmd_lock); |
a6d9bb1c NB |
274 | continue; |
275 | } | |
0f4a9431 NB |
276 | spin_unlock(&sess->sess_cmd_lock); |
277 | ||
6eb40b2a | 278 | list_move_tail(&tmr_p->tmr_list, &drain_tmr_list); |
d050ffb9 NB |
279 | } |
280 | spin_unlock_irqrestore(&dev->se_tmr_lock, flags); | |
281 | ||
abc1fd4f | 282 | list_for_each_entry_safe(tmr_p, tmr_pp, &drain_tmr_list, tmr_list) { |
b8a11d73 | 283 | list_del_init(&tmr_p->tmr_list); |
abc1fd4f | 284 | cmd = tmr_p->task_cmd; |
d050ffb9 | 285 | |
6708bb27 | 286 | pr_debug("LUN_RESET: %s releasing TMR %p Function: 0x%02x," |
c66ac9db | 287 | " Response: 0x%02x, t_state: %d\n", |
abc1fd4f JE |
288 | (preempt_and_abort_list) ? "Preempt" : "", tmr_p, |
289 | tmr_p->function, tmr_p->response, cmd->t_state); | |
c66ac9db | 290 | |
a6d9bb1c NB |
291 | cancel_work_sync(&cmd->work); |
292 | transport_wait_for_tasks(cmd); | |
293 | ||
73d4e580 NB |
294 | if (!transport_cmd_finish_abort(cmd, 1)) |
295 | target_put_sess_cmd(cmd); | |
c66ac9db | 296 | } |
d050ffb9 NB |
297 | } |
298 | ||
cf572a96 | 299 | static void core_tmr_drain_state_list( |
d050ffb9 NB |
300 | struct se_device *dev, |
301 | struct se_cmd *prout_cmd, | |
ebde1ca5 | 302 | struct se_session *tmr_sess, |
d050ffb9 NB |
303 | int tas, |
304 | struct list_head *preempt_and_abort_list) | |
305 | { | |
306 | LIST_HEAD(drain_task_list); | |
febe562c | 307 | struct se_session *sess; |
cf572a96 | 308 | struct se_cmd *cmd, *next; |
d050ffb9 | 309 | unsigned long flags; |
febe562c | 310 | int rc; |
cf572a96 | 311 | |
c66ac9db | 312 | /* |
cf572a96 CH |
313 | * Complete outstanding commands with TASK_ABORTED SAM status. |
314 | * | |
c66ac9db NB |
315 | * This is following sam4r17, section 5.6 Aborting commands, Table 38 |
316 | * for TMR LUN_RESET: | |
317 | * | |
318 | * a) "Yes" indicates that each command that is aborted on an I_T nexus | |
319 | * other than the one that caused the SCSI device condition is | |
320 | * completed with TASK ABORTED status, if the TAS bit is set to one in | |
321 | * the Control mode page (see SPC-4). "No" indicates that no status is | |
322 | * returned for aborted commands. | |
323 | * | |
324 | * d) If the logical unit reset is caused by a particular I_T nexus | |
325 | * (e.g., by a LOGICAL UNIT RESET task management function), then "yes" | |
326 | * (TASK_ABORTED status) applies. | |
327 | * | |
328 | * Otherwise (e.g., if triggered by a hard reset), "no" | |
329 | * (no TASK_ABORTED SAM status) applies. | |
330 | * | |
331 | * Note that this seems to be independent of TAS (Task Aborted Status) | |
332 | * in the Control Mode Page. | |
333 | */ | |
334 | spin_lock_irqsave(&dev->execute_task_lock, flags); | |
cf572a96 | 335 | list_for_each_entry_safe(cmd, next, &dev->state_list, state_list) { |
c66ac9db NB |
336 | /* |
337 | * For PREEMPT_AND_ABORT usage, only process commands | |
338 | * with a matching reservation key. | |
339 | */ | |
feae8564 | 340 | if (target_check_cdb_and_preempt(preempt_and_abort_list, cmd)) |
c66ac9db | 341 | continue; |
cf572a96 | 342 | |
c66ac9db NB |
343 | /* |
344 | * Not aborting PROUT PREEMPT_AND_ABORT CDB.. | |
345 | */ | |
346 | if (prout_cmd == cmd) | |
347 | continue; | |
348 | ||
febe562c NB |
349 | sess = cmd->se_sess; |
350 | if (WARN_ON_ONCE(!sess)) | |
351 | continue; | |
352 | ||
353 | spin_lock(&sess->sess_cmd_lock); | |
0f4a9431 | 354 | rc = __target_check_io_state(cmd, tmr_sess, tas); |
febe562c NB |
355 | spin_unlock(&sess->sess_cmd_lock); |
356 | if (!rc) | |
357 | continue; | |
358 | ||
cf572a96 CH |
359 | list_move_tail(&cmd->state_list, &drain_task_list); |
360 | cmd->state_active = false; | |
d050ffb9 NB |
361 | } |
362 | spin_unlock_irqrestore(&dev->execute_task_lock, flags); | |
363 | ||
364 | while (!list_empty(&drain_task_list)) { | |
cf572a96 | 365 | cmd = list_entry(drain_task_list.next, struct se_cmd, state_list); |
febe562c | 366 | list_del_init(&cmd->state_list); |
c66ac9db | 367 | |
c00e6220 BVA |
368 | target_show_cmd("LUN_RESET: ", cmd); |
369 | pr_debug("LUN_RESET: ITT[0x%08llx] - %s pr_res_key: 0x%016Lx\n", | |
370 | cmd->tag, (preempt_and_abort_list) ? "preempt" : "", | |
371 | cmd->pr_res_key); | |
c66ac9db | 372 | |
35e0e757 CH |
373 | /* |
374 | * If the command may be queued onto a workqueue cancel it now. | |
375 | * | |
376 | * This is equivalent to removal from the execute queue in the | |
377 | * loop above, but we do it down here given that | |
378 | * cancel_work_sync may block. | |
379 | */ | |
febe562c NB |
380 | cancel_work_sync(&cmd->work); |
381 | transport_wait_for_tasks(cmd); | |
c66ac9db | 382 | |
73d4e580 NB |
383 | if (!core_tmr_handle_tas_abort(cmd, tas)) |
384 | target_put_sess_cmd(cmd); | |
c66ac9db | 385 | } |
d050ffb9 NB |
386 | } |
387 | ||
d050ffb9 NB |
388 | int core_tmr_lun_reset( |
389 | struct se_device *dev, | |
390 | struct se_tmr_req *tmr, | |
391 | struct list_head *preempt_and_abort_list, | |
392 | struct se_cmd *prout_cmd) | |
393 | { | |
394 | struct se_node_acl *tmr_nacl = NULL; | |
395 | struct se_portal_group *tmr_tpg = NULL; | |
ebde1ca5 | 396 | struct se_session *tmr_sess = NULL; |
d050ffb9 NB |
397 | int tas; |
398 | /* | |
399 | * TASK_ABORTED status bit, this is configurable via ConfigFS | |
400 | * struct se_device attributes. spc4r17 section 7.4.6 Control mode page | |
401 | * | |
402 | * A task aborted status (TAS) bit set to zero specifies that aborted | |
403 | * tasks shall be terminated by the device server without any response | |
404 | * to the application client. A TAS bit set to one specifies that tasks | |
405 | * aborted by the actions of an I_T nexus other than the I_T nexus on | |
406 | * which the command was received shall be completed with TASK ABORTED | |
407 | * status (see SAM-4). | |
408 | */ | |
0fd97ccf | 409 | tas = dev->dev_attrib.emulate_tas; |
d050ffb9 NB |
410 | /* |
411 | * Determine if this se_tmr is coming from a $FABRIC_MOD | |
412 | * or struct se_device passthrough.. | |
413 | */ | |
414 | if (tmr && tmr->task_cmd && tmr->task_cmd->se_sess) { | |
ebde1ca5 NB |
415 | tmr_sess = tmr->task_cmd->se_sess; |
416 | tmr_nacl = tmr_sess->se_node_acl; | |
417 | tmr_tpg = tmr_sess->se_tpg; | |
d050ffb9 NB |
418 | if (tmr_nacl && tmr_tpg) { |
419 | pr_debug("LUN_RESET: TMR caller fabric: %s" | |
420 | " initiator port %s\n", | |
421 | tmr_tpg->se_tpg_tfo->get_fabric_name(), | |
422 | tmr_nacl->initiatorname); | |
423 | } | |
424 | } | |
425 | pr_debug("LUN_RESET: %s starting for [%s], tas: %d\n", | |
426 | (preempt_and_abort_list) ? "Preempt" : "TMR", | |
427 | dev->transport->name, tas); | |
428 | ||
429 | core_tmr_drain_tmr_list(dev, tmr, preempt_and_abort_list); | |
ebde1ca5 | 430 | core_tmr_drain_state_list(dev, prout_cmd, tmr_sess, tas, |
d050ffb9 | 431 | preempt_and_abort_list); |
af877292 | 432 | |
c66ac9db NB |
433 | /* |
434 | * Clear any legacy SPC-2 reservation when called during | |
435 | * LOGICAL UNIT RESET | |
436 | */ | |
6708bb27 | 437 | if (!preempt_and_abort_list && |
0fd97ccf | 438 | (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)) { |
c66ac9db NB |
439 | spin_lock(&dev->dev_reservation_lock); |
440 | dev->dev_reserved_node_acl = NULL; | |
0fd97ccf | 441 | dev->dev_reservation_flags &= ~DRF_SPC2_RESERVATIONS; |
c66ac9db | 442 | spin_unlock(&dev->dev_reservation_lock); |
6708bb27 | 443 | pr_debug("LUN_RESET: SCSI-2 Released reservation\n"); |
c66ac9db NB |
444 | } |
445 | ||
ee480683 | 446 | atomic_long_inc(&dev->num_resets); |
c66ac9db | 447 | |
6708bb27 | 448 | pr_debug("LUN_RESET: %s for [%s] Complete\n", |
c66ac9db | 449 | (preempt_and_abort_list) ? "Preempt" : "TMR", |
e3d6f909 | 450 | dev->transport->name); |
c66ac9db NB |
451 | return 0; |
452 | } | |
d050ffb9 | 453 |