Lines Matching refs: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()
289 Sg_device *sdp; in sg_open() local
296 sdp = sg_get_dev(dev); in sg_open()
297 if (IS_ERR(sdp)) in sg_open()
298 return PTR_ERR(sdp); in sg_open()
300 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_open()
305 device = sdp->device; in sg_open()
324 mutex_lock(&sdp->open_rel_lock); in sg_open()
327 if (sdp->open_cnt > 0) { in sg_open()
332 if (sdp->exclude) { in sg_open()
338 retval = open_wait(sdp, flags); in sg_open()
345 sdp->exclude = true; in sg_open()
347 if (sdp->open_cnt < 1) { /* no existing opens */ in sg_open()
348 sdp->sgdebug = 0; in sg_open()
350 sdp->sg_tablesize = queue_max_segments(q); in sg_open()
352 sfp = sg_add_sfp(sdp); in sg_open()
359 sdp->open_cnt++; in sg_open()
360 mutex_unlock(&sdp->open_rel_lock); in sg_open()
364 kref_put(&sdp->d_ref, sg_device_destroy); in sg_open()
369 sdp->exclude = false; /* undo if error */ in sg_open()
370 wake_up_interruptible(&sdp->open_wait); in sg_open()
373 mutex_unlock(&sdp->open_rel_lock); in sg_open()
377 kref_put(&sdp->d_ref, sg_device_destroy); in sg_open()
387 Sg_device *sdp; in sg_release() local
390 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_release()
392 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, "sg_release\n")); in sg_release()
394 mutex_lock(&sdp->open_rel_lock); in sg_release()
395 scsi_autopm_put_device(sdp->device); in sg_release()
397 sdp->open_cnt--; in sg_release()
401 if (sdp->exclude) { in sg_release()
402 sdp->exclude = false; in sg_release()
403 wake_up_interruptible_all(&sdp->open_wait); in sg_release()
404 } else if (0 == sdp->open_cnt) { in sg_release()
405 wake_up_interruptible(&sdp->open_wait); in sg_release()
407 mutex_unlock(&sdp->open_rel_lock); in sg_release()
446 Sg_device *sdp; in sg_read() local
463 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_read()
465 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_read()
479 (!busy && atomic_read(&sdp->detaching)))); in sg_read()
607 Sg_device *sdp; in sg_write() local
619 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_write()
621 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_write()
623 if (atomic_read(&sdp->detaching)) in sg_write()
626 scsi_block_when_processing_errors(sdp->device))) in sg_write()
645 SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sdp, in sg_write()
659 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp, in sg_write()
786 Sg_device *sdp = sfp->parentdp; in sg_common_write() local
814 if (atomic_read(&sdp->detaching)) { in sg_common_write()
920 sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp, in sg_ioctl_common() argument
928 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_ioctl_common()
934 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
936 if (!scsi_block_when_processing_errors(sdp->device)) in sg_ioctl_common()
983 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
986 v.host_no = sdp->device->host->host_no; in sg_ioctl_common()
987 v.channel = sdp->device->channel; in sg_ioctl_common()
988 v.scsi_id = sdp->device->id; in sg_ioctl_common()
989 v.lun = sdp->device->lun; in sg_ioctl_common()
990 v.scsi_type = sdp->device->type; in sg_ioctl_common()
991 v.h_cmd_per_lun = sdp->device->host->cmd_per_lun; in sg_ioctl_common()
992 v.d_queue_depth = sdp->device->queue_depth; in sg_ioctl_common()
1024 return put_user(sdp->sg_tablesize, ip); in sg_ioctl_common()
1032 max_sectors_bytes(sdp->device->request_queue)); in sg_ioctl_common()
1048 max_sectors_bytes(sdp->device->request_queue)); in sg_ioctl_common()
1078 val = (sdp->device ? 1 : 0); in sg_ioctl_common()
1103 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1105 return put_user(sdp->device->host->hostt->emulated, ip); in sg_ioctl_common()
1107 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1109 return scsi_ioctl(sdp->device, filp->f_mode & FMODE_WRITE, in sg_ioctl_common()
1115 sdp->sgdebug = (char) val; in sg_ioctl_common()
1118 return put_user(max_sectors_bytes(sdp->device->request_queue), in sg_ioctl_common()
1121 return blk_trace_setup(sdp->device->request_queue, sdp->name, in sg_ioctl_common()
1122 MKDEV(SCSI_GENERIC_MAJOR, sdp->index), in sg_ioctl_common()
1125 return blk_trace_startstop(sdp->device->request_queue, 1); in sg_ioctl_common()
1127 return blk_trace_startstop(sdp->device->request_queue, 0); in sg_ioctl_common()
1129 return blk_trace_remove(sdp->device->request_queue); in sg_ioctl_common()
1135 if (atomic_read(&sdp->detaching)) in sg_ioctl_common()
1144 result = scsi_ioctl_block_when_processing_errors(sdp->device, in sg_ioctl_common()
1156 Sg_device *sdp; in sg_ioctl() local
1160 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_ioctl()
1163 ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p); in sg_ioctl()
1166 return scsi_ioctl(sdp->device, filp->f_mode & FMODE_WRITE, cmd_in, p); in sg_ioctl()
1173 Sg_device *sdp; in sg_poll() local
1182 sdp = sfp->parentdp; in sg_poll()
1183 if (!sdp) in sg_poll()
1195 if (atomic_read(&sdp->detaching)) in sg_poll()
1202 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_poll()
1210 Sg_device *sdp; in sg_fasync() local
1213 if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) in sg_fasync()
1215 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_fasync()
1323 Sg_device *sdp; in sg_rq_end_io() local
1337 sdp = sfp->parentdp; in sg_rq_end_io()
1338 if (unlikely(atomic_read(&sdp->detaching))) in sg_rq_end_io()
1345 SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp, in sg_rq_end_io()
1360 if ((sdp->sgdebug > 0) && in sg_rq_end_io()
1363 __scsi_print_sense(sdp->device, __func__, sense, in sg_rq_end_io()
1371 && sdp->device->removable) { in sg_rq_end_io()
1374 sdp->device->changed = 1; in sg_rq_end_io()
1438 Sg_device *sdp; in sg_alloc() local
1443 sdp = kzalloc(sizeof(Sg_device), GFP_KERNEL); in sg_alloc()
1444 if (!sdp) { in sg_alloc()
1453 error = idr_alloc(&sg_index_idr, sdp, 0, SG_MAX_DEVS, GFP_NOWAIT); in sg_alloc()
1471 sprintf(sdp->name, "sg%d", k); in sg_alloc()
1472 sdp->device = scsidp; in sg_alloc()
1473 mutex_init(&sdp->open_rel_lock); in sg_alloc()
1474 INIT_LIST_HEAD(&sdp->sfds); in sg_alloc()
1475 init_waitqueue_head(&sdp->open_wait); in sg_alloc()
1476 atomic_set(&sdp->detaching, 0); in sg_alloc()
1477 rwlock_init(&sdp->sfd_lock); in sg_alloc()
1478 sdp->sg_tablesize = queue_max_segments(q); in sg_alloc()
1479 sdp->index = k; in sg_alloc()
1480 kref_init(&sdp->d_ref); in sg_alloc()
1488 kfree(sdp); in sg_alloc()
1491 return sdp; in sg_alloc()
1498 Sg_device *sdp = NULL; in sg_add_device() local
1517 sdp = sg_alloc(scsidp); in sg_add_device()
1518 if (IS_ERR(sdp)) { in sg_add_device()
1520 error = PTR_ERR(sdp); in sg_add_device()
1524 error = cdev_add(cdev, MKDEV(SCSI_GENERIC_MAJOR, sdp->index), 1); in sg_add_device()
1528 sdp->cdev = cdev; in sg_add_device()
1534 sdp->index), in sg_add_device()
1535 sdp, "%s", sdp->name); in sg_add_device()
1545 "to sg%d\n", __func__, sdp->index); in sg_add_device()
1550 "type %d\n", sdp->index, scsidp->type); in sg_add_device()
1552 dev_set_drvdata(cl_dev, sdp); in sg_add_device()
1558 idr_remove(&sg_index_idr, sdp->index); in sg_add_device()
1560 kfree(sdp); in sg_add_device()
1572 struct sg_device *sdp = container_of(kref, struct sg_device, d_ref); in sg_device_destroy() local
1573 struct request_queue *q = sdp->device->request_queue; in sg_device_destroy()
1585 idr_remove(&sg_index_idr, sdp->index); in sg_device_destroy()
1589 sg_printk(KERN_INFO, sdp, "sg_device_destroy\n")); in sg_device_destroy()
1591 kfree(sdp); in sg_device_destroy()
1598 Sg_device *sdp = dev_get_drvdata(cl_dev); in sg_remove_device() local
1603 if (!sdp) in sg_remove_device()
1606 val = atomic_inc_return(&sdp->detaching); in sg_remove_device()
1610 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_remove_device()
1613 read_lock_irqsave(&sdp->sfd_lock, iflags); in sg_remove_device()
1614 list_for_each_entry(sfp, &sdp->sfds, sfd_siblings) { in sg_remove_device()
1618 wake_up_interruptible_all(&sdp->open_wait); in sg_remove_device()
1619 read_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_remove_device()
1622 device_destroy(sg_sysfs_class, MKDEV(SCSI_GENERIC_MAJOR, sdp->index)); in sg_remove_device()
1623 cdev_del(sdp->cdev); in sg_remove_device()
1624 sdp->cdev = NULL; in sg_remove_device()
1626 kref_put(&sdp->d_ref, sg_device_destroy); in sg_remove_device()
2162 sg_add_sfp(Sg_device * sdp) in sg_add_sfp() argument
2182 sfp->parentdp = sdp; in sg_add_sfp()
2183 write_lock_irqsave(&sdp->sfd_lock, iflags); in sg_add_sfp()
2184 if (atomic_read(&sdp->detaching)) { in sg_add_sfp()
2185 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_add_sfp()
2189 list_add_tail(&sfp->sfd_siblings, &sdp->sfds); in sg_add_sfp()
2190 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_add_sfp()
2191 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_add_sfp()
2197 max_sectors_bytes(sdp->device->request_queue)); in sg_add_sfp()
2199 SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp, in sg_add_sfp()
2204 kref_get(&sdp->d_ref); in sg_add_sfp()
2213 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp_usercontext() local
2214 struct scsi_device *device = sdp->device; in sg_remove_sfp_usercontext()
2229 SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp, in sg_remove_sfp_usercontext()
2236 SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp, in sg_remove_sfp_usercontext()
2240 kref_put(&sdp->d_ref, sg_device_destroy); in sg_remove_sfp_usercontext()
2249 struct sg_device *sdp = sfp->parentdp; in sg_remove_sfp() local
2252 write_lock_irqsave(&sdp->sfd_lock, iflags); in sg_remove_sfp()
2254 write_unlock_irqrestore(&sdp->sfd_lock, iflags); in sg_remove_sfp()
2294 struct sg_device *sdp; in sg_get_dev() local
2298 sdp = sg_lookup_dev(dev); in sg_get_dev()
2299 if (!sdp) in sg_get_dev()
2300 sdp = ERR_PTR(-ENXIO); in sg_get_dev()
2301 else if (atomic_read(&sdp->detaching)) { in sg_get_dev()
2305 sdp = ERR_PTR(-ENODEV); in sg_get_dev()
2307 kref_get(&sdp->d_ref); in sg_get_dev()
2310 return sdp; in sg_get_dev()
2488 Sg_device *sdp; in sg_proc_seq_show_dev() local
2493 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_dev()
2494 if ((NULL == sdp) || (NULL == sdp->device) || in sg_proc_seq_show_dev()
2495 (atomic_read(&sdp->detaching))) in sg_proc_seq_show_dev()
2498 scsidp = sdp->device; in sg_proc_seq_show_dev()
2514 Sg_device *sdp; in sg_proc_seq_show_devstrs() local
2519 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_devstrs()
2520 scsidp = sdp ? sdp->device : NULL; in sg_proc_seq_show_devstrs()
2521 if (sdp && scsidp && (!atomic_read(&sdp->detaching))) in sg_proc_seq_show_devstrs()
2531 static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) in sg_proc_debug_helper() argument
2541 list_for_each_entry(fp, &sdp->sfds, sfd_siblings) { in sg_proc_debug_helper()
2596 Sg_device *sdp; in sg_proc_seq_show_debug() local
2604 sdp = it ? sg_lookup_dev(it->index) : NULL; in sg_proc_seq_show_debug()
2605 if (NULL == sdp) in sg_proc_seq_show_debug()
2607 read_lock(&sdp->sfd_lock); in sg_proc_seq_show_debug()
2608 if (!list_empty(&sdp->sfds)) { in sg_proc_seq_show_debug()
2609 seq_printf(s, " >>> device=%s ", sdp->name); in sg_proc_seq_show_debug()
2610 if (atomic_read(&sdp->detaching)) in sg_proc_seq_show_debug()
2612 else if (sdp->device) { in sg_proc_seq_show_debug()
2613 struct scsi_device *scsidp = sdp->device; in sg_proc_seq_show_debug()
2622 sdp->sg_tablesize, sdp->exclude, sdp->open_cnt); in sg_proc_seq_show_debug()
2623 sg_proc_debug_helper(s, sdp); in sg_proc_seq_show_debug()
2625 read_unlock(&sdp->sfd_lock); in sg_proc_seq_show_debug()