Lines Matching full:sdp
196 static Sg_fd *sg_add_sfp(Sg_device * sdp);
209 #define sg_printk(prefix, sdp, fmt, a...) \ argument
210 sdev_prefix_printk(prefix, (sdp)->device, (sdp)->name, fmt, ##a)
246 open_wait(Sg_device *sdp, int flags) in open_wait() argument
251 while (sdp->open_cnt > 0) { in open_wait()
252 mutex_unlock(&sdp->open_rel_lock); in open_wait()
253 retval = wait_event_interruptible(sdp->open_wait, in open_wait()
254 (atomic_read(&sdp->detaching) || in open_wait()
255 !sdp->open_cnt)); in open_wait()
256 mutex_lock(&sdp->open_rel_lock); in open_wait()
260 if (atomic_read(&sdp->detaching)) in open_wait()
264 while (sdp->exclude) { in open_wait()
265 mutex_unlock(&sdp->open_rel_lock); in open_wait()
266 retval = wait_event_interruptible(sdp->open_wait, in open_wait()
267 (atomic_read(&sdp->detaching) || in open_wait()
268 !sdp->exclude)); in open_wait()
269 mutex_lock(&sdp->open_rel_lock); in open_wait()
273 if (atomic_read(&sdp->detaching)) in open_wait()
288 Sg_device *sdp; in sg_open() local
295 sdp = sg_get_dev(dev); in sg_open()
296 if (IS_ERR(sdp)) in sg_open()
297 return PTR_ERR(sdp); in sg_open()
299 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_open()
304 retval = scsi_device_get(sdp->device); in sg_open()
308 retval = scsi_autopm_get_device(sdp->device); in sg_open()
316 scsi_block_when_processing_errors(sdp->device))) { in sg_open()
322 mutex_lock(&sdp->open_rel_lock); in sg_open()
325 if (sdp->open_cnt > 0) { in sg_open()
330 if (sdp->exclude) { in sg_open()
336 retval = open_wait(sdp, flags); in sg_open()
343 sdp->exclude = true; in sg_open()
345 if (sdp->open_cnt < 1) { /* no existing opens */ in sg_open()
346 sdp->sgdebug = 0; in sg_open()
347 q = sdp->device->request_queue; in sg_open()
348 sdp->sg_tablesize = queue_max_segments(q); in sg_open()
350 sfp = sg_add_sfp(sdp); in sg_open()
357 sdp->open_cnt++; in sg_open()
358 mutex_unlock(&sdp->open_rel_lock); in sg_open()
362 kref_put(&sdp->d_ref, sg_device_destroy); in sg_open()
367 sdp->exclude = false; /* undo if error */ in sg_open()
368 wake_up_interruptible(&sdp->open_wait); in sg_open()
371 mutex_unlock(&sdp->open_rel_lock); in sg_open()
373 scsi_autopm_put_device(sdp->device); in sg_open()
375 scsi_device_put(sdp->device); in sg_open()
384 Sg_device *sdp; in sg_release() local
387 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_release()
389 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, "sg_release\n")); in sg_release()
391 mutex_lock(&sdp->open_rel_lock); in sg_release()
392 scsi_autopm_put_device(sdp->device); in sg_release()
394 sdp->open_cnt--; in sg_release()
398 if (sdp->exclude) { in sg_release()
399 sdp->exclude = false; in sg_release()
400 wake_up_interruptible_all(&sdp->open_wait); in sg_release()
401 } else if (0 == sdp->open_cnt) { in sg_release()
402 wake_up_interruptible(&sdp->open_wait); in sg_release()
404 mutex_unlock(&sdp->open_rel_lock); in sg_release()
443 Sg_device *sdp; in sg_read() local
460 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_read()
462 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_read()
476 (!busy && atomic_read(&sdp->detaching)))); in sg_read()
604 Sg_device *sdp; in sg_write() local
616 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_write()
618 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_write()
620 if (atomic_read(&sdp->detaching)) in sg_write()
623 scsi_block_when_processing_errors(sdp->device))) in sg_write()
642 SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sdp, in sg_write()
656 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp, in sg_write()
783 Sg_device *sdp = sfp->parentdp; in sg_common_write() local
811 if (atomic_read(&sdp->detaching)) { in sg_common_write()
917 sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp, in sg_ioctl_common() argument
925 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_ioctl_common()
931 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
933 if (!scsi_block_when_processing_errors(sdp->device)) in sg_ioctl_common()
980 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
983 v.host_no = sdp->device->host->host_no; in sg_ioctl_common()
984 v.channel = sdp->device->channel; in sg_ioctl_common()
985 v.scsi_id = sdp->device->id; in sg_ioctl_common()
986 v.lun = sdp->device->lun; in sg_ioctl_common()
987 v.scsi_type = sdp->device->type; in sg_ioctl_common()
988 v.h_cmd_per_lun = sdp->device->host->cmd_per_lun; in sg_ioctl_common()
989 v.d_queue_depth = sdp->device->queue_depth; in sg_ioctl_common()
1021 return put_user(sdp->sg_tablesize, ip); in sg_ioctl_common()
1029 max_sectors_bytes(sdp->device->request_queue)); in sg_ioctl_common()
1045 max_sectors_bytes(sdp->device->request_queue)); in sg_ioctl_common()
1075 val = (sdp->device ? 1 : 0); in sg_ioctl_common()
1100 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1102 return put_user(sdp->device->host->hostt->emulated, ip); in sg_ioctl_common()
1104 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1106 return scsi_ioctl(sdp->device, filp->f_mode, cmd_in, p); in sg_ioctl_common()
1111 sdp->sgdebug = (char) val; in sg_ioctl_common()
1114 return put_user(max_sectors_bytes(sdp->device->request_queue), in sg_ioctl_common()
1117 return blk_trace_setup(sdp->device->request_queue, sdp->name, in sg_ioctl_common()
1118 MKDEV(SCSI_GENERIC_MAJOR, sdp->index), in sg_ioctl_common()
1121 return blk_trace_startstop(sdp->device->request_queue, 1); in sg_ioctl_common()
1123 return blk_trace_startstop(sdp->device->request_queue, 0); in sg_ioctl_common()
1125 return blk_trace_remove(sdp->device->request_queue); in sg_ioctl_common()
1131 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1140 result = scsi_ioctl_block_when_processing_errors(sdp->device, in sg_ioctl_common()
1152 Sg_device *sdp; in sg_ioctl() local
1156 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_ioctl()
1159 ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p); in sg_ioctl()
1162 return scsi_ioctl(sdp->device, filp->f_mode, cmd_in, p); in sg_ioctl()
1169 Sg_device *sdp; in sg_poll() local
1178 sdp = sfp->parentdp; in sg_poll()
1179 if (!sdp) in sg_poll()
1191 if (atomic_read(&sdp->detaching)) in sg_poll()
1198 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_poll()
1206 Sg_device *sdp; in sg_fasync() local
1209 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_fasync()
1211 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_fasync()
1319 Sg_device *sdp; in sg_rq_end_io() local
1333 sdp = sfp->parentdp; in sg_rq_end_io()
1334 if (unlikely(atomic_read(&sdp->detaching))) in sg_rq_end_io()
1341 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp, in sg_rq_end_io()
1356 if ((sdp->sgdebug > 0) && in sg_rq_end_io()
1359 __scsi_print_sense(sdp->device, __func__, sense, in sg_rq_end_io()
1367 && sdp->device->removable) { in sg_rq_end_io()
1370 sdp->device->changed = 1; in sg_rq_end_io()
1434 Sg_device *sdp; in sg_alloc() local
1439 sdp = kzalloc(sizeof(Sg_device), GFP_KERNEL); in sg_alloc()
1440 if (!sdp) { in sg_alloc()
1449 error = idr_alloc(&sg_index_idr, sdp, 0, SG_MAX_DEVS, GFP_NOWAIT); in sg_alloc()
1467 sprintf(sdp->name, "sg%d", k); in sg_alloc()
1468 sdp->device = scsidp; in sg_alloc()
1469 mutex_init(&sdp->open_rel_lock); in sg_alloc()
1470 INIT_LIST_HEAD(&sdp->sfds); in sg_alloc()
1471 init_waitqueue_head(&sdp->open_wait); in sg_alloc()
1472 atomic_set(&sdp->detaching, 0); in sg_alloc()
1473 rwlock_init(&sdp->sfd_lock); in sg_alloc()
1474 sdp->sg_tablesize = queue_max_segments(q); in sg_alloc()
1475 sdp->index = k; in sg_alloc()
1476 kref_init(&sdp->d_ref); in sg_alloc()
1484 kfree(sdp); in sg_alloc()
1487 return sdp; in sg_alloc()
1494 Sg_device *sdp = NULL; in sg_add_device() local
1508 sdp = sg_alloc(scsidp); in sg_add_device()
1509 if (IS_ERR(sdp)) { in sg_add_device()
1511 error = PTR_ERR(sdp); in sg_add_device()
1515 error = cdev_add(cdev, MKDEV(SCSI_GENERIC_MAJOR, sdp->index), 1); in sg_add_device()
1519 sdp->cdev = cdev; in sg_add_device()
1525 sdp->index), in sg_add_device()
1526 sdp, "%s", sdp->name); in sg_add_device()
1536 "to sg%d\n", __func__, sdp->index); in sg_add_device()
1541 "type %d\n", sdp->index, scsidp->type); in sg_add_device()
1543 dev_set_drvdata(cl_dev, sdp); in sg_add_device()
1549 idr_remove(&sg_index_idr, sdp->index); in sg_add_device()
1551 kfree(sdp); in sg_add_device()
1562 struct sg_device *sdp = container_of(kref, struct sg_device, d_ref); in sg_device_destroy() local
1571 idr_remove(&sg_index_idr, sdp->index); in sg_device_destroy()
1575 sg_printk(KERN_INFO, sdp, "sg_device_destroy\n")); in sg_device_destroy()
1577 kfree(sdp); in sg_device_destroy()
1584 Sg_device *sdp = dev_get_drvdata(cl_dev); in sg_remove_device() local
1589 if (!sdp) in sg_remove_device()
1591 /* want sdp->detaching non-zero as soon as possible */ in sg_remove_device()
1592 val = atomic_inc_return(&sdp->detaching); in sg_remove_device()
1596 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_remove_device()
1599 read_lock_irqsave(&sdp->sfd_lock, iflags); in sg_remove_device()
1600 list_for_each_entry(sfp, &sdp->sfds, sfd_siblings) { in sg_remove_device()
1604 wake_up_interruptible_all(&sdp->open_wait); in sg_remove_device()
1605 read_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_remove_device()
1608 device_destroy(sg_sysfs_class, MKDEV(SCSI_GENERIC_MAJOR, sdp->index)); in sg_remove_device()
1609 cdev_del(sdp->cdev); in sg_remove_device()
1610 sdp->cdev = NULL; in sg_remove_device()
1612 kref_put(&sdp->d_ref, sg_device_destroy); in sg_remove_device()
2148 sg_add_sfp(Sg_device * sdp) in sg_add_sfp() argument
2168 sfp->parentdp = sdp; in sg_add_sfp()
2169 write_lock_irqsave(&sdp->sfd_lock, iflags); in sg_add_sfp()
2170 if (atomic_read(&sdp->detaching)) { in sg_add_sfp()
2171 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_add_sfp()
2175 list_add_tail(&sfp->sfd_siblings, &sdp->sfds); in sg_add_sfp()
2176 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_add_sfp()
2177 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_add_sfp()
2183 max_sectors_bytes(sdp->device->request_queue)); in sg_add_sfp()
2185 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_add_sfp()
2190 kref_get(&sdp->d_ref); in sg_add_sfp()
2199 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp_usercontext() local
2214 SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp, in sg_remove_sfp_usercontext()
2221 SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp, in sg_remove_sfp_usercontext()
2225 scsi_device_put(sdp->device); in sg_remove_sfp_usercontext()
2226 kref_put(&sdp->d_ref, sg_device_destroy); in sg_remove_sfp_usercontext()
2234 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp() local
2237 write_lock_irqsave(&sdp->sfd_lock, iflags); in sg_remove_sfp()
2239 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_remove_sfp()
2279 struct sg_device *sdp; in sg_get_dev() local
2283 sdp = sg_lookup_dev(dev); in sg_get_dev()
2284 if (!sdp) in sg_get_dev()
2285 sdp = ERR_PTR(-ENXIO); in sg_get_dev()
2286 else if (atomic_read(&sdp->detaching)) { in sg_get_dev()
2287 /* If sdp->detaching, then the refcount may already be 0, in in sg_get_dev()
2290 sdp = ERR_PTR(-ENODEV); in sg_get_dev()
2292 kref_get(&sdp->d_ref); in sg_get_dev()
2295 return sdp; in sg_get_dev()
2473 Sg_device *sdp; in sg_proc_seq_show_dev() local
2478 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_dev()
2479 if ((NULL == sdp) || (NULL == sdp->device) || in sg_proc_seq_show_dev()
2480 (atomic_read(&sdp->detaching))) in sg_proc_seq_show_dev()
2483 scsidp = sdp->device; in sg_proc_seq_show_dev()
2499 Sg_device *sdp; in sg_proc_seq_show_devstrs() local
2504 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_devstrs()
2505 scsidp = sdp ? sdp->device : NULL; in sg_proc_seq_show_devstrs()
2506 if (sdp && scsidp && (!atomic_read(&sdp->detaching))) in sg_proc_seq_show_devstrs()
2516 static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) in sg_proc_debug_helper() argument
2526 list_for_each_entry(fp, &sdp->sfds, sfd_siblings) { in sg_proc_debug_helper()
2581 Sg_device *sdp; in sg_proc_seq_show_debug() local
2589 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_debug()
2590 if (NULL == sdp) in sg_proc_seq_show_debug()
2592 read_lock(&sdp->sfd_lock); in sg_proc_seq_show_debug()
2593 if (!list_empty(&sdp->sfds)) { in sg_proc_seq_show_debug()
2594 seq_printf(s, " >>> device=%s ", sdp->name); in sg_proc_seq_show_debug()
2595 if (atomic_read(&sdp->detaching)) in sg_proc_seq_show_debug()
2597 else if (sdp->device) { in sg_proc_seq_show_debug()
2598 struct scsi_device *scsidp = sdp->device; in sg_proc_seq_show_debug()
2607 sdp->sg_tablesize, sdp->exclude, sdp->open_cnt); in sg_proc_seq_show_debug()
2608 sg_proc_debug_helper(s, sdp); in sg_proc_seq_show_debug()
2610 read_unlock(&sdp->sfd_lock); in sg_proc_seq_show_debug()