Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 update from Martin Schwidefsky: "The most prominent change in this patch set is the software dirty bit patch for s390. It removes __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY and the page_test_and_clear_dirty primitive which makes the common memory management code a bit less obscure. Heiko fixed most of the PCI related fallout, more often than not missing GENERIC_HARDIRQS dependencies. Notable is one of the 3270 patches which adds an export to tty_io to be able to resize a tty. The rest is the usual bunch of cleanups and bug fixes." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits) s390/module: Add missing R_390_NONE relocation type drivers/gpio: add missing GENERIC_HARDIRQ dependency drivers/input: add couple of missing GENERIC_HARDIRQS dependencies s390/cleanup: rename SPP to LPP s390/mm: implement software dirty bits s390/mm: Fix crst upgrade of mmap with MAP_FIXED s390/linker skript: discard exit.data at runtime drivers/media: add missing GENERIC_HARDIRQS dependency s390/bpf,jit: add vlan tag support drivers/net,AT91RM9200: add missing GENERIC_HARDIRQS dependency iucv: fix kernel panic at reboot s390/Kconfig: sort list of arch selected config options phylib: remove !S390 dependeny from Kconfig uio: remove !S390 dependency from Kconfig dasd: fix sysfs cleanup in dasd_generic_remove s390/pci: fix hotplug module init s390/pci: cleanup clp page allocation s390/pci: cleanup clp inline assembly s390/perf: cpum_cf: fallback to software sampling events s390/mm: provide PAGE_SHARED define ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2013-02-22 05:54:03 +0400
committer: Linus Torvalds <torvalds@linux-foundation.org> 2013-02-22 05:54:03 +0400
commit: 81ec44a6c69342fec1b1140c60a604027e429f69 (patch)
tree: ee6bec8a94ef28e111bf766cf4b7a9366cb4f7c1 /drivers/s390
parent: 48a732dfaa77a4dfec803aa8f248373998704f76 (diff)
parent: e80cfc31d872b6b85b8966bce6ba80bee401a7dd (diff)
download: linux-81ec44a6c69342fec1b1140c60a604027e429f69.tar.xz
29 files changed, 741 insertions, 540 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 29225e1c159c..f1b7fdc58a5f 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1352,7 +1352,7 @@ int dasd_term_IO(struct dasd_ccw_req *cqr)
 		switch (rc) {
 		case 0:	/* termination successful */
 			cqr->status = DASD_CQR_CLEAR_PENDING;
-			cqr->stopclk = get_clock();
+			cqr->stopclk = get_tod_clock();
 			cqr->starttime = 0;
 			DBF_DEV_EVENT(DBF_DEBUG, device,
 				      "terminate cqr %p successful",
@@ -1420,7 +1420,7 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
 		cqr->status = DASD_CQR_ERROR;
 		return -EIO;
 	}
-	cqr->startclk = get_clock();
+	cqr->startclk = get_tod_clock();
 	cqr->starttime = jiffies;
 	cqr->retries--;
 	if (!test_bit(DASD_CQR_VERIFY_PATH, &cqr->flags)) {
@@ -1623,7 +1623,7 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
 		return;
 	}
 
-	now = get_clock();
+	now = get_tod_clock();
 	cqr = (struct dasd_ccw_req *) intparm;
 	/* check for conditions that should be handled immediately */
 	if (!cqr ||
@@ -1963,7 +1963,7 @@ int dasd_flush_device_queue(struct dasd_device *device)
 			}
 			break;
 		case DASD_CQR_QUEUED:
-			cqr->stopclk = get_clock();
+			cqr->stopclk = get_tod_clock();
 			cqr->status = DASD_CQR_CLEARED;
 			break;
 		default: /* no need to modify the others */
@@ -2210,7 +2210,7 @@ static int _dasd_sleep_on(struct dasd_ccw_req *maincqr, int interruptible)
 			wait_event(generic_waitq, _wait_for_wakeup(cqr));
 	}
 
-	maincqr->endclk = get_clock();
+	maincqr->endclk = get_tod_clock();
 	if ((maincqr->status != DASD_CQR_DONE) &&
 	    (maincqr->intrc != -ERESTARTSYS))
 		dasd_log_sense(maincqr, &maincqr->irb);
@@ -2340,7 +2340,7 @@ int dasd_cancel_req(struct dasd_ccw_req *cqr)
 				"Cancelling request %p failed with rc=%d\n",
 				cqr, rc);
 		} else {
-			cqr->stopclk = get_clock();
+			cqr->stopclk = get_tod_clock();
 		}
 		break;
 	default: /* already finished or clear pending - do nothing */
@@ -2568,7 +2568,7 @@ restart:
 		}
 
 		/* Rechain finished requests to final queue */
-		cqr->endclk = get_clock();
+		cqr->endclk = get_tod_clock();
 		list_move_tail(&cqr->blocklist, final_queue);
 	}
 }
@@ -2711,7 +2711,7 @@ restart_cb:
 		}
 		/* call the callback function */
 		spin_lock_irq(&block->request_queue_lock);
-		cqr->endclk = get_clock();
+		cqr->endclk = get_tod_clock();
 		list_del_init(&cqr->blocklist);
 		__dasd_cleanup_cqr(cqr);
 		spin_unlock_irq(&block->request_queue_lock);
@@ -3042,12 +3042,15 @@ void dasd_generic_remove(struct ccw_device *cdev)
 	cdev->handler = NULL;
 
 	device = dasd_device_from_cdev(cdev);
-	if (IS_ERR(device))
+	if (IS_ERR(device)) {
+		dasd_remove_sysfs_files(cdev);
 		return;
+	}
 	if (test_and_set_bit(DASD_FLAG_OFFLINE, &device->flags) &&
 	    !test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) {
 		/* Already doing offline processing */
 		dasd_put_device(device);
+		dasd_remove_sysfs_files(cdev);
 		return;
 	}
 	/*
@@ -3504,7 +3507,7 @@ static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
 	cqr->memdev = device;
 	cqr->expires = 10*HZ;
 	cqr->retries = 256;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	return cqr;
 }
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index f8212d54013a..d26134713682 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -229,7 +229,7 @@ dasd_3990_erp_DCTL(struct dasd_ccw_req * erp, char modifier)
 	dctl_cqr->expires = 5 * 60 * HZ;
 	dctl_cqr->retries = 2;
 
-	dctl_cqr->buildclk = get_clock();
+	dctl_cqr->buildclk = get_tod_clock();
 
 	dctl_cqr->status = DASD_CQR_FILLED;
 
@@ -1719,7 +1719,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
 	erp->magic = default_erp->magic;
 	erp->expires = default_erp->expires;
 	erp->retries = 256;
-	erp->buildclk = get_clock();
+	erp->buildclk = get_tod_clock();
 	erp->status = DASD_CQR_FILLED;
 
 	/* remove the default erp */
@@ -2322,7 +2322,7 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
 			DBF_DEV_EVENT(DBF_ERR, device, "%s",
 				    "Unable to allocate ERP request");
 			cqr->status = DASD_CQR_FAILED;
-                        cqr->stopclk = get_clock ();
+			cqr->stopclk = get_tod_clock();
 		} else {
 			DBF_DEV_EVENT(DBF_ERR, device,
                                      "Unable to allocate ERP request "
@@ -2364,7 +2364,7 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
 	erp->magic    = cqr->magic;
 	erp->expires  = cqr->expires;
 	erp->retries  = 256;
-	erp->buildclk = get_clock();
+	erp->buildclk = get_tod_clock();
 	erp->status = DASD_CQR_FILLED;
 
 	return erp;
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 6b556995bb33..a2597e683e79 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -448,7 +448,7 @@ static int read_unit_address_configuration(struct dasd_device *device,
 	ccw->count = sizeof(*(lcu->uac));
 	ccw->cda = (__u32)(addr_t) lcu->uac;
 
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 
 	/* need to unset flag here to detect race with summary unit check */
@@ -733,7 +733,7 @@ static int reset_summary_unit_check(struct alias_lcu *lcu,
 	cqr->memdev = device;
 	cqr->block = NULL;
 	cqr->expires = 5 * HZ;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 
 	rc = dasd_sleep_on_immediatly(cqr);
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 704488d0f819..cc0603358522 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -184,14 +184,14 @@ dasd_start_diag(struct dasd_ccw_req * cqr)
 	private->iob.bio_list = dreq->bio;
 	private->iob.flaga = DASD_DIAG_FLAGA_DEFAULT;
 
-	cqr->startclk = get_clock();
+	cqr->startclk = get_tod_clock();
 	cqr->starttime = jiffies;
 	cqr->retries--;
 
 	rc = dia250(&private->iob, RW_BIO);
 	switch (rc) {
 	case 0: /* Synchronous I/O finished successfully */
-		cqr->stopclk = get_clock();
+		cqr->stopclk = get_tod_clock();
 		cqr->status = DASD_CQR_SUCCESS;
 		/* Indicate to calling function that only a dasd_schedule_bh()
 		   and no timer is needed */
@@ -222,7 +222,7 @@ dasd_diag_term_IO(struct dasd_ccw_req * cqr)
 	mdsk_term_io(device);
 	mdsk_init_io(device, device->block->bp_block, 0, NULL);
 	cqr->status = DASD_CQR_CLEAR_PENDING;
-	cqr->stopclk = get_clock();
+	cqr->stopclk = get_tod_clock();
 	dasd_schedule_device_bh(device);
 	return 0;
 }
@@ -276,7 +276,7 @@ static void dasd_ext_handler(struct ext_code ext_code,
 		return;
 	}
 
-	cqr->stopclk = get_clock();
+	cqr->stopclk = get_tod_clock();
 
 	expires = 0;
 	if ((ext_code.subcode & 0xff) == 0) {
@@ -556,7 +556,7 @@ static struct dasd_ccw_req *dasd_diag_build_cp(struct dasd_device *memdev,
 		}
 	}
 	cqr->retries = DIAG_MAX_RETRIES;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	if (blk_noretry_request(req) ||
 	    block->base->features & DASD_FEATURE_FAILFAST)
 		set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index e37bc1620d14..33f26bfa62f2 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -862,7 +862,7 @@ static void dasd_eckd_fill_rcd_cqr(struct dasd_device *device,
 	cqr->expires = 10*HZ;
 	cqr->lpm = lpm;
 	cqr->retries = 256;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	set_bit(DASD_CQR_VERIFY_PATH, &cqr->flags);
 }
@@ -1449,7 +1449,7 @@ static int dasd_eckd_read_features(struct dasd_device *device)
 	ccw->count = sizeof(struct dasd_rssd_features);
 	ccw->cda = (__u32)(addr_t) features;
 
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	rc = dasd_sleep_on(cqr);
 	if (rc == 0) {
@@ -1501,7 +1501,7 @@ static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device,
 	cqr->block = NULL;
 	cqr->retries = 256;
 	cqr->expires = 10*HZ;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	return cqr;
 }
@@ -1841,7 +1841,7 @@ dasd_eckd_analysis_ccw(struct dasd_device *device)
 	cqr->startdev = device;
 	cqr->memdev = device;
 	cqr->retries = 255;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	return cqr;
 }
@@ -2241,7 +2241,7 @@ dasd_eckd_format_device(struct dasd_device * device,
 	fcp->startdev = device;
 	fcp->memdev = device;
 	fcp->retries = 256;
-	fcp->buildclk = get_clock();
+	fcp->buildclk = get_tod_clock();
 	fcp->status = DASD_CQR_FILLED;
 	return fcp;
 }
@@ -2530,7 +2530,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
 	cqr->expires = startdev->default_expires * HZ;	/* default 5 minutes */
 	cqr->lpm = startdev->path_data.ppm;
 	cqr->retries = 256;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	return cqr;
 }
@@ -2705,7 +2705,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
 	cqr->expires = startdev->default_expires * HZ;	/* default 5 minutes */
 	cqr->lpm = startdev->path_data.ppm;
 	cqr->retries = 256;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	return cqr;
 }
@@ -2998,7 +2998,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
 	cqr->expires = startdev->default_expires * HZ;	/* default 5 minutes */
 	cqr->lpm = startdev->path_data.ppm;
 	cqr->retries = 256;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	return cqr;
 out_error:
@@ -3201,7 +3201,7 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev,
 	cqr->expires = startdev->default_expires * HZ;
 	cqr->lpm = startdev->path_data.ppm;
 	cqr->retries = 256;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 
 	if (IS_ERR(cqr) && PTR_ERR(cqr) != -EAGAIN)
@@ -3402,7 +3402,7 @@ dasd_eckd_release(struct dasd_device *device)
 	set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
 	cqr->retries = 2;	/* set retry counter to enable basic ERP */
 	cqr->expires = 2 * HZ;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 
 	rc = dasd_sleep_on_immediatly(cqr);
@@ -3457,7 +3457,7 @@ dasd_eckd_reserve(struct dasd_device *device)
 	set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
 	cqr->retries = 2;	/* set retry counter to enable basic ERP */
 	cqr->expires = 2 * HZ;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 
 	rc = dasd_sleep_on_immediatly(cqr);
@@ -3511,7 +3511,7 @@ dasd_eckd_steal_lock(struct dasd_device *device)
 	set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
 	cqr->retries = 2;	/* set retry counter to enable basic ERP */
 	cqr->expires = 2 * HZ;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 
 	rc = dasd_sleep_on_immediatly(cqr);
@@ -3572,7 +3572,7 @@ static int dasd_eckd_snid(struct dasd_device *device,
 	set_bit(DASD_CQR_ALLOW_SLOCK, &cqr->flags);
 	cqr->retries = 5;
 	cqr->expires = 10 * HZ;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	cqr->lpm = usrparm.path_mask;
 
@@ -3642,7 +3642,7 @@ dasd_eckd_performance(struct dasd_device *device, void __user *argp)
 	ccw->count = sizeof(struct dasd_rssd_perf_stats_t);
 	ccw->cda = (__u32)(addr_t) stats;
 
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	rc = dasd_sleep_on(cqr);
 	if (rc == 0) {
@@ -3768,7 +3768,7 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp)
 	cqr->memdev = device;
 	cqr->retries = 3;
 	cqr->expires = 10 * HZ;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 
 	/* Build the ccws */
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index ff901b5509c1..21ef63cf0960 100644
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -481,7 +481,7 @@ int dasd_eer_enable(struct dasd_device *device)
 	ccw->flags = 0;
 	ccw->cda = (__u32)(addr_t) cqr->data;
 
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	cqr->callback = dasd_eer_snss_cb;
 
diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c
index d01ef82f8757..3250cb471f78 100644
--- a/drivers/s390/block/dasd_erp.c
+++ b/drivers/s390/block/dasd_erp.c
@@ -102,7 +102,7 @@ dasd_default_erp_action(struct dasd_ccw_req *cqr)
 		pr_err("%s: default ERP has run out of retries and failed\n",
 		       dev_name(&device->cdev->dev));
 		cqr->status = DASD_CQR_FAILED;
-		cqr->stopclk = get_clock();
+		cqr->stopclk = get_tod_clock();
         }
         return cqr;
 }				/* end dasd_default_erp_action */
@@ -146,7 +146,7 @@ struct dasd_ccw_req *dasd_default_erp_postaction(struct dasd_ccw_req *cqr)
 		cqr->status = DASD_CQR_DONE;
 	else {
 		cqr->status = DASD_CQR_FAILED;
-		cqr->stopclk = get_clock();
+		cqr->stopclk = get_tod_clock();
 	}
 
 	return cqr;
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 414698584344..4dd0e2f6047e 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -370,7 +370,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev,
 	cqr->block = block;
 	cqr->expires = memdev->default_expires * HZ;	/* default 5 minutes */
 	cqr->retries = 32;
-	cqr->buildclk = get_clock();
+	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
 	return cqr;
 }
diff --git a/drivers/s390/block/scm_blk.h b/drivers/s390/block/scm_blk.h
index 7ac6bad919ef..3c1ccf494647 100644
--- a/drivers/s390/block/scm_blk.h
+++ b/drivers/s390/block/scm_blk.h
@@ -68,19 +68,34 @@ void scm_initiate_cluster_request(struct scm_request *);
 void scm_cluster_request_irq(struct scm_request *);
 bool scm_test_cluster_request(struct scm_request *);
 bool scm_cluster_size_valid(void);
-#else
-#define __scm_free_rq_cluster(scmrq) {}
-#define __scm_alloc_rq_cluster(scmrq) 0
-#define scm_request_cluster_init(scmrq) {}
-#define scm_reserve_cluster(scmrq) true
-#define scm_release_cluster(scmrq) {}
-#define scm_blk_dev_cluster_setup(bdev) {}
-#define scm_need_cluster_request(scmrq) false
-#define scm_initiate_cluster_request(scmrq) {}
-#define scm_cluster_request_irq(scmrq) {}
-#define scm_test_cluster_request(scmrq) false
-#define scm_cluster_size_valid() true
-#endif
+#else /* CONFIG_SCM_BLOCK_CLUSTER_WRITE */
+static inline void __scm_free_rq_cluster(struct scm_request *scmrq) {}
+static inline int __scm_alloc_rq_cluster(struct scm_request *scmrq)
+{
+	return 0;
+}
+static inline void scm_request_cluster_init(struct scm_request *scmrq) {}
+static inline bool scm_reserve_cluster(struct scm_request *scmrq)
+{
+	return true;
+}
+static inline void scm_release_cluster(struct scm_request *scmrq) {}
+static inline void scm_blk_dev_cluster_setup(struct scm_blk_dev *bdev) {}
+static inline bool scm_need_cluster_request(struct scm_request *scmrq)
+{
+	return false;
+}
+static inline void scm_initiate_cluster_request(struct scm_request *scmrq) {}
+static inline void scm_cluster_request_irq(struct scm_request *scmrq) {}
+static inline bool scm_test_cluster_request(struct scm_request *scmrq)
+{
+	return false;
+}
+static inline bool scm_cluster_size_valid(void)
+{
+	return true;
+}
+#endif /* CONFIG_SCM_BLOCK_CLUSTER_WRITE */
 
 extern debug_info_t *scm_debug;
 
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 911704571b9c..230697aac94b 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -443,7 +443,7 @@ fs3270_open(struct inode *inode, struct file *filp)
 			tty_kref_put(tty);
 			return -ENODEV;
 		}
-		minor = tty->index + RAW3270_FIRSTMINOR;
+		minor = tty->index;
 		tty_kref_put(tty);
 	}
 	mutex_lock(&fs3270_mutex);
@@ -524,6 +524,25 @@ static const struct file_operations fs3270_fops = {
 	.llseek		= no_llseek,
 };
 
+void fs3270_create_cb(int minor)
+{
+	__register_chrdev(IBM_FS3270_MAJOR, minor, 1, "tub", &fs3270_fops);
+	device_create(class3270, NULL, MKDEV(IBM_FS3270_MAJOR, minor),
+		      NULL, "3270/tub%d", minor);
+}
+
+void fs3270_destroy_cb(int minor)
+{
+	device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, minor));
+	__unregister_chrdev(IBM_FS3270_MAJOR, minor, 1, "tub");
+}
+
+struct raw3270_notifier fs3270_notifier =
+{
+	.create = fs3270_create_cb,
+	.destroy = fs3270_destroy_cb,
+};
+
 /*
  * 3270 fullscreen driver initialization.
  */
@@ -532,16 +551,20 @@ fs3270_init(void)
 {
 	int rc;
 
-	rc = register_chrdev(IBM_FS3270_MAJOR, "fs3270", &fs3270_fops);
+	rc = __register_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270", &fs3270_fops);
 	if (rc)
 		return rc;
+	device_create(class3270, NULL, MKDEV(IBM_FS3270_MAJOR, 0),
+		      NULL, "3270/tub");
+	raw3270_register_notifier(&fs3270_notifier);
 	return 0;
 }
 
 static void __exit
 fs3270_exit(void)
 {
-	unregister_chrdev(IBM_FS3270_MAJOR, "fs3270");
+	raw3270_unregister_notifier(&fs3270_notifier);
+	__unregister_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270");
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 9a6c140c5f07..4c9030a5b9f2 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -28,7 +28,7 @@
 #include <linux/device.h>
 #include <linux/mutex.h>
 
-static struct class *class3270;
+struct class *class3270;
 
 /* The main 3270 data structure. */
 struct raw3270 {
@@ -37,6 +37,7 @@ struct raw3270 {
 	int minor;
 
 	short model, rows, cols;
+	unsigned int state;
 	unsigned long flags;
 
 	struct list_head req_queue;	/* Request queue. */
@@ -46,20 +47,26 @@ struct raw3270 {
 	struct timer_list timer;	/* Device timer. */
 
 	unsigned char *ascebc;		/* ascii -> ebcdic table */
-	struct device *clttydev;	/* 3270-class tty device ptr */
-	struct device *cltubdev;	/* 3270-class tub device ptr */
 
-	struct raw3270_request init_request;
+	struct raw3270_view init_view;
+	struct raw3270_request init_reset;
+	struct raw3270_request init_readpart;
+	struct raw3270_request init_readmod;
 	unsigned char init_data[256];
 };
 
+/* raw3270->state */
+#define RAW3270_STATE_INIT	0	/* Initial state */
+#define RAW3270_STATE_RESET	1	/* Reset command is pending */
+#define RAW3270_STATE_W4ATTN	2	/* Wait for attention interrupt */
+#define RAW3270_STATE_READMOD	3	/* Read partition is pending */
+#define RAW3270_STATE_READY	4	/* Device is usable by views */
+
 /* raw3270->flags */
 #define RAW3270_FLAGS_14BITADDR	0	/* 14-bit buffer addresses */
 #define RAW3270_FLAGS_BUSY	1	/* Device busy, leave it alone */
-#define RAW3270_FLAGS_ATTN	2	/* Device sent an ATTN interrupt */
-#define RAW3270_FLAGS_READY	4	/* Device is useable by views */
-#define RAW3270_FLAGS_CONSOLE	8	/* Device is the console. */
-#define RAW3270_FLAGS_FROZEN	16	/* set if 3270 is frozen for suspend */
+#define RAW3270_FLAGS_CONSOLE	2	/* Device is the console. */
+#define RAW3270_FLAGS_FROZEN	3	/* set if 3270 is frozen for suspend */
 
 /* Semaphore to protect global data of raw3270 (devices, views, etc). */
 static DEFINE_MUTEX(raw3270_mutex);
@@ -97,6 +104,17 @@ static unsigned char raw3270_ebcgraf[64] =	{
 	0xf8, 0xf9, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f
 };
 
+static inline int raw3270_state_ready(struct raw3270 *rp)
+{
+	return rp->state == RAW3270_STATE_READY;
+}
+
+static inline int raw3270_state_final(struct raw3270 *rp)
+{
+	return rp->state == RAW3270_STATE_INIT ||
+		rp->state == RAW3270_STATE_READY;
+}
+
 void
 raw3270_buffer_address(struct raw3270 *rp, char *cp, unsigned short addr)
 {
@@ -214,7 +232,7 @@ raw3270_request_set_idal(struct raw3270_request *rq, struct idal_buffer *ib)
  * Stop running ccw.
  */
 static int
-raw3270_halt_io_nolock(struct raw3270 *rp, struct raw3270_request *rq)
+__raw3270_halt_io(struct raw3270 *rp, struct raw3270_request *rq)
 {
 	int retries;
 	int rc;
@@ -233,18 +251,6 @@ raw3270_halt_io_nolock(struct raw3270 *rp, struct raw3270_request *rq)
 	return rc;
 }
 
-static int
-raw3270_halt_io(struct raw3270 *rp, struct raw3270_request *rq)
-{
-	unsigned long flags;
-	int rc;
-
-	spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
-	rc = raw3270_halt_io_nolock(rp, rq);
-	spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
-	return rc;
-}
-
 /*
  * Add the request to the request queue, try to start it if the
  * 3270 device is idle. Return without waiting for end of i/o.
@@ -281,8 +287,8 @@ raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)
 	if (!rp || rp->view != view ||
 	    test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
 		rc = -EACCES;
-	else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
-		rc = -ENODEV;
+	else if (!raw3270_state_ready(rp))
+		rc = -EBUSY;
 	else
 		rc =  __raw3270_start(rp, view, rq);
 	spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);
@@ -299,8 +305,8 @@ raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)
 	if (!rp || rp->view != view ||
 	    test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
 		rc = -EACCES;
-	else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
-		rc = -ENODEV;
+	else if (!raw3270_state_ready(rp))
+		rc = -EBUSY;
 	else
 		rc =  __raw3270_start(rp, view, rq);
 	return rc;
@@ -378,7 +384,7 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 	case RAW3270_IO_STOP:
 		if (!rq)
 			break;
-		raw3270_halt_io_nolock(rp, rq);
+		__raw3270_halt_io(rp, rq);
 		rq->rc = -EIO;
 		break;
 	default:
@@ -413,9 +419,14 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 }
 
 /*
- * Size sensing.
+ * To determine the size of the 3270 device we need to do:
+ * 1) send a 'read partition' data stream to the device
+ * 2) wait for the attn interrupt that precedes the query reply
+ * 3) do a read modified to get the query reply
+ * To make things worse we have to cope with intervention
+ * required (3270 device switched to 'stand-by') and command
+ * rejects (old devices that can't do 'read partition').
  */
-
 struct raw3270_ua {	/* Query Reply structure for Usable Area */
 	struct {	/* Usable Area Query Reply Base */
 		short l;	/* Length of this structured field */
@@ -451,117 +462,21 @@ struct raw3270_ua {	/* Query Reply structure for Usable Area */
 	} __attribute__ ((packed)) aua;
 } __attribute__ ((packed));
 
-static struct diag210 raw3270_init_diag210;
-static DEFINE_MUTEX(raw3270_init_mutex);
-
-static int
-raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,
-		 struct irb *irb)
-{
-	/*
-	 * Unit-Check Processing:
-	 * Expect Command Reject or Intervention Required.
-	 */
-	if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
-		/* Request finished abnormally. */
-		if (irb->ecw[0] & SNS0_INTERVENTION_REQ) {
-			set_bit(RAW3270_FLAGS_BUSY, &view->dev->flags);
-			return RAW3270_IO_BUSY;
-		}
-	}
-	if (rq) {
-		if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
-			if (irb->ecw[0] & SNS0_CMD_REJECT)
-				rq->rc = -EOPNOTSUPP;
-			else
-				rq->rc = -EIO;
-		} else
-			/* Request finished normally. Copy residual count. */
-			rq->rescnt = irb->scsw.cmd.count;
-	}
-	if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) {
-		set_bit(RAW3270_FLAGS_ATTN, &view->dev->flags);
-		wake_up(&raw3270_wait_queue);
-	}
-	return RAW3270_IO_DONE;
-}
-
-static struct raw3270_fn raw3270_init_fn = {
-	.intv = raw3270_init_irq
-};
-
-static struct raw3270_view raw3270_init_view = {
-	.fn = &raw3270_init_fn
-};
-
-/*
- * raw3270_wait/raw3270_wait_interruptible/__raw3270_wakeup
- * Wait for end of request. The request must have been started
- * with raw3270_start, rc = 0. The device lock may NOT have been
- * released between calling raw3270_start and raw3270_wait.
- */
 static void
-raw3270_wake_init(struct raw3270_request *rq, void *data)
-{
-	wake_up((wait_queue_head_t *) data);
-}
-
-/*
- * Special wait function that can cope with console initialization.
- */
-static int
-raw3270_start_init(struct raw3270 *rp, struct raw3270_view *view,
-		   struct raw3270_request *rq)
-{
-	unsigned long flags;
-	int rc;
-
-#ifdef CONFIG_TN3270_CONSOLE
-	if (raw3270_registered == 0) {
-		spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
-		rq->callback = NULL;
-		rc = __raw3270_start(rp, view, rq);
-		if (rc == 0)
-			while (!raw3270_request_final(rq)) {
-				wait_cons_dev();
-				barrier();
-			}
-		spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);
-		return rq->rc;
-	}
-#endif
-	rq->callback = raw3270_wake_init;
-	rq->callback_data = &raw3270_wait_queue;
-	spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
-	rc = __raw3270_start(rp, view, rq);
-	spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);
-	if (rc)
-		return rc;
-	/* Now wait for the completion. */
-	rc = wait_event_interruptible(raw3270_wait_queue,
-				      raw3270_request_final(rq));
-	if (rc == -ERESTARTSYS) {	/* Interrupted by a signal. */
-		raw3270_halt_io(view->dev, rq);
-		/* No wait for the halt to complete. */
-		wait_event(raw3270_wait_queue, raw3270_request_final(rq));
-		return -ERESTARTSYS;
-	}
-	return rq->rc;
-}
-
-static int
-__raw3270_size_device_vm(struct raw3270 *rp)
+raw3270_size_device_vm(struct raw3270 *rp)
 {
 	int rc, model;
 	struct ccw_dev_id dev_id;
+	struct diag210 diag_data;
 
 	ccw_device_get_id(rp->cdev, &dev_id);
-	raw3270_init_diag210.vrdcdvno = dev_id.devno;
-	raw3270_init_diag210.vrdclen = sizeof(struct diag210);
-	rc = diag210(&raw3270_init_diag210);
-	if (rc)
-		return rc;
-	model = raw3270_init_diag210.vrdccrmd;
+	diag_data.vrdcdvno = dev_id.devno;
+	diag_data.vrdclen = sizeof(struct diag210);
+	rc = diag210(&diag_data);
+	model = diag_data.vrdccrmd;
+	/* Use default model 2 if the size could not be detected */
+	if (rc || model < 2 || model > 5)
+		model = 2;
 	switch (model) {
 	case 2:
 		rp->model = model;
@@ -583,77 +498,25 @@ __raw3270_size_device_vm(struct raw3270 *rp)
 		rp->rows = 27;
 		rp->cols = 132;
 		break;
-	default:
-		rc = -EOPNOTSUPP;
-		break;
 	}
-	return rc;
 }
 
-static int
-__raw3270_size_device(struct raw3270 *rp)
+static void
+raw3270_size_device(struct raw3270 *rp)
 {
-	static const unsigned char wbuf[] =
-		{ 0x00, 0x07, 0x01, 0xff, 0x03, 0x00, 0x81 };
 	struct raw3270_ua *uap;
-	int rc;
 
-	/*
-	 * To determine the size of the 3270 device we need to do:
-	 * 1) send a 'read partition' data stream to the device
-	 * 2) wait for the attn interrupt that precedes the query reply
-	 * 3) do a read modified to get the query reply
-	 * To make things worse we have to cope with intervention
-	 * required (3270 device switched to 'stand-by') and command
-	 * rejects (old devices that can't do 'read partition').
-	 */
-	memset(&rp->init_request, 0, sizeof(rp->init_request));
-	memset(&rp->init_data, 0, 256);
-	/* Store 'read partition' data stream to init_data */
-	memcpy(&rp->init_data, wbuf, sizeof(wbuf));
-	INIT_LIST_HEAD(&rp->init_request.list);
-	rp->init_request.ccw.cmd_code = TC_WRITESF;
-	rp->init_request.ccw.flags = CCW_FLAG_SLI;
-	rp->init_request.ccw.count = sizeof(wbuf);
-	rp->init_request.ccw.cda = (__u32) __pa(&rp->init_data);
-
-	rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
-	if (rc)
-		/* Check error cases: -ERESTARTSYS, -EIO and -EOPNOTSUPP */
-		return rc;
-
-	/* Wait for attention interrupt. */
-#ifdef CONFIG_TN3270_CONSOLE
-	if (raw3270_registered == 0) {
-		unsigned long flags;
-
-		spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
-		while (!test_and_clear_bit(RAW3270_FLAGS_ATTN, &rp->flags))
-			wait_cons_dev();
-		spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
-	} else
-#endif
-		rc = wait_event_interruptible(raw3270_wait_queue,
-			test_and_clear_bit(RAW3270_FLAGS_ATTN, &rp->flags));
-	if (rc)
-		return rc;
-
-	/*
-	 * The device accepted the 'read partition' command. Now
-	 * set up a read ccw and issue it.
-	 */
-	rp->init_request.ccw.cmd_code = TC_READMOD;
-	rp->init_request.ccw.flags = CCW_FLAG_SLI;
-	rp->init_request.ccw.count = sizeof(rp->init_data);
-	rp->init_request.ccw.cda = (__u32) __pa(rp->init_data);
-	rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
-	if (rc)
-		return rc;
 	/* Got a Query Reply */
 	uap = (struct raw3270_ua *) (rp->init_data + 1);
 	/* Paranoia check. */
-	if (rp->init_data[0] != 0x88 || uap->uab.qcode != 0x81)
-		return -EOPNOTSUPP;
+	if (rp->init_readmod.rc || rp->init_data[0] != 0x88 ||
+	    uap->uab.qcode != 0x81) {
+		/* Couldn't detect size. Use default model 2. */
+		rp->model = 2;
+		rp->rows = 24;
+		rp->cols = 80;
+		return;
+	}
 	/* Copy rows/columns of default Usable Area */
 	rp->rows = uap->uab.h;
 	rp->cols = uap->uab.w;
@@ -666,66 +529,131 @@ __raw3270_size_device(struct raw3270 *rp)
 		rp->rows = uap->aua.hauai;
 		rp->cols = uap->aua.wauai;
 	}
-	return 0;
+	/* Try to find a model. */
+	rp->model = 0;
+	if (rp->rows == 24 && rp->cols == 80)
+		rp->model = 2;
+	if (rp->rows == 32 && rp->cols == 80)
+		rp->model = 3;
+	if (rp->rows == 43 && rp->cols == 80)
+		rp->model = 4;
+	if (rp->rows == 27 && rp->cols == 132)
+		rp->model = 5;
 }
 
-static int
-raw3270_size_device(struct raw3270 *rp)
+static void
+raw3270_size_device_done(struct raw3270 *rp)
 {
-	int rc;
+	struct raw3270_view *view;
 
-	mutex_lock(&raw3270_init_mutex);
-	rp->view = &raw3270_init_view;
-	raw3270_init_view.dev = rp;
-	if (MACHINE_IS_VM)
-		rc = __raw3270_size_device_vm(rp);
-	else
-		rc = __raw3270_size_device(rp);
-	raw3270_init_view.dev = NULL;
 	rp->view = NULL;
-	mutex_unlock(&raw3270_init_mutex);
-	if (rc == 0) {	/* Found something. */
-		/* Try to find a model. */
-		rp->model = 0;
-		if (rp->rows == 24 && rp->cols == 80)
-			rp->model = 2;
-		if (rp->rows == 32 && rp->cols == 80)
-			rp->model = 3;
-		if (rp->rows == 43 && rp->cols == 80)
-			rp->model = 4;
-		if (rp->rows == 27 && rp->cols == 132)
-			rp->model = 5;
-	} else {
-		/* Couldn't detect size. Use default model 2. */
-		rp->model = 2;
-		rp->rows = 24;
-		rp->cols = 80;
-		return 0;
+	rp->state = RAW3270_STATE_READY;
+	/* Notify views about new size */
+	list_for_each_entry(view, &rp->view_list, list)
+		if (view->fn->resize)
+			view->fn->resize(view, rp->model, rp->rows, rp->cols);
+	/* Setup processing done, now activate a view */
+	list_for_each_entry(view, &rp->view_list, list) {
+		rp->view = view;
+		if (view->fn->activate(view) == 0)
+			break;
+		rp->view = NULL;
 	}
-	return rc;
+}
+
+static void
+raw3270_read_modified_cb(struct raw3270_request *rq, void *data)
+{
+	struct raw3270 *rp = rq->view->dev;
+
+	raw3270_size_device(rp);
+	raw3270_size_device_done(rp);
+}
+
+static void
+raw3270_read_modified(struct raw3270 *rp)
+{
+	if (rp->state != RAW3270_STATE_W4ATTN)
+		return;
+	/* Use 'read modified' to get the result of a read partition. */
+	memset(&rp->init_readmod, 0, sizeof(rp->init_readmod));
+	memset(&rp->init_data, 0, sizeof(rp->init_data));
+	rp->init_readmod.ccw.cmd_code = TC_READMOD;
+	rp->init_readmod.ccw.flags = CCW_FLAG_SLI;
+	rp->init_readmod.ccw.count = sizeof(rp->init_data);
+	rp->init_readmod.ccw.cda = (__u32) __pa(rp->init_data);
+	rp->init_readmod.callback = raw3270_read_modified_cb;
+	rp->state = RAW3270_STATE_READMOD;
+	raw3270_start_irq(&rp->init_view, &rp->init_readmod);
+}
+
+static void
+raw3270_writesf_readpart(struct raw3270 *rp)
+{
+	static const unsigned char wbuf[] =
+		{ 0x00, 0x07, 0x01, 0xff, 0x03, 0x00, 0x81 };
+
+	/* Store 'read partition' data stream to init_data */
+	memset(&rp->init_readpart, 0, sizeof(rp->init_readpart));
+	memset(&rp->init_data, 0, sizeof(rp->init_data));
+	memcpy(&rp->init_data, wbuf, sizeof(wbuf));
+	rp->init_readpart.ccw.cmd_code = TC_WRITESF;
+	rp->init_readpart.ccw.flags = CCW_FLAG_SLI;
+	rp->init_readpart.ccw.count = sizeof(wbuf);
+	rp->init_readpart.ccw.cda = (__u32) __pa(&rp->init_data);
+	rp->state = RAW3270_STATE_W4ATTN;
+	raw3270_start_irq(&rp->init_view, &rp->init_readpart);
+}
+
+/*
+ * Device reset
+ */
+static void
+raw3270_reset_device_cb(struct raw3270_request *rq, void *data)
+{
+	struct raw3270 *rp = rq->view->dev;
+
+	if (rp->state != RAW3270_STATE_RESET)
+		return;
+	if (rq && rq->rc) {
+		/* Reset command failed. */
+		rp->state = RAW3270_STATE_INIT;
+	} else if (0 && MACHINE_IS_VM) {
+		raw3270_size_device_vm(rp);
+		raw3270_size_device_done(rp);
+	} else
+		raw3270_writesf_readpart(rp);
 }
 
 static int
-raw3270_reset_device(struct raw3270 *rp)
+__raw3270_reset_device(struct raw3270 *rp)
 {
 	int rc;
 
-	mutex_lock(&raw3270_init_mutex);
-	memset(&rp->init_request, 0, sizeof(rp->init_request));
+	/* Store reset data stream to init_data/init_reset */
+	memset(&rp->init_reset, 0, sizeof(rp->init_reset));
 	memset(&rp->init_data, 0, sizeof(rp->init_data));
-	/* Store reset data stream to init_data/init_request */
 	rp->init_data[0] = TW_KR;
-	INIT_LIST_HEAD(&rp->init_request.list);
-	rp->init_request.ccw.cmd_code = TC_EWRITEA;
-	rp->init_request.ccw.flags = CCW_FLAG_SLI;
-	rp->init_request.ccw.count = 1;
-	rp->init_request.ccw.cda = (__u32) __pa(rp->init_data);
-	rp->view = &raw3270_init_view;
-	raw3270_init_view.dev = rp;
-	rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
-	raw3270_init_view.dev = NULL;
-	rp->view = NULL;
-	mutex_unlock(&raw3270_init_mutex);
+	rp->init_reset.ccw.cmd_code = TC_EWRITEA;
+	rp->init_reset.ccw.flags = CCW_FLAG_SLI;
+	rp->init_reset.ccw.count = 1;
+	rp->init_reset.ccw.cda = (__u32) __pa(rp->init_data);
+	rp->init_reset.callback = raw3270_reset_device_cb;
+	rc = __raw3270_start(rp, &rp->init_view, &rp->init_reset);
+	if (rc == 0 && rp->state == RAW3270_STATE_INIT)
+		rp->state = RAW3270_STATE_RESET;
+	return rc;
+}
+
+static int
+raw3270_reset_device(struct raw3270 *rp)
+{
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+	rc = __raw3270_reset_device(rp);
+	spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
 	return rc;
 }
 
@@ -739,13 +667,50 @@ raw3270_reset(struct raw3270_view *view)
 	if (!rp || rp->view != view ||
 	    test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
 		rc = -EACCES;
-	else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
-		rc = -ENODEV;
+	else if (!raw3270_state_ready(rp))
+		rc = -EBUSY;
 	else
 		rc = raw3270_reset_device(view->dev);
 	return rc;
 }
 
+static int
+raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,
+		 struct irb *irb)
+{
+	struct raw3270 *rp;
+
+	/*
+	 * Unit-Check Processing:
+	 * Expect Command Reject or Intervention Required.
+	 */
+	if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
+		/* Request finished abnormally. */
+		if (irb->ecw[0] & SNS0_INTERVENTION_REQ) {
+			set_bit(RAW3270_FLAGS_BUSY, &view->dev->flags);
+			return RAW3270_IO_BUSY;
+		}
+	}
+	if (rq) {
+		if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
+			if (irb->ecw[0] & SNS0_CMD_REJECT)
+				rq->rc = -EOPNOTSUPP;
+			else
+				rq->rc = -EIO;
+		}
+	}
+	if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) {
+		/* Queue read modified after attention interrupt */
+		rp = view->dev;
+		raw3270_read_modified(rp);
+	}
+	return RAW3270_IO_DONE;
+}
+
+static struct raw3270_fn raw3270_init_fn = {
+	.intv = raw3270_init_irq
+};
+
 /*
  * Setup new 3270 device.
  */
@@ -774,6 +739,10 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
 	INIT_LIST_HEAD(&rp->req_queue);
 	INIT_LIST_HEAD(&rp->view_list);
 
+	rp->init_view.dev = rp;
+	rp->init_view.fn = &raw3270_init_fn;
+	rp->view = &rp->init_view;
+
 	/*
 	 * Add device to list and find the smallest unused minor
 	 * number for it. Note: there is no device with minor 0,
@@ -812,6 +781,7 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
  */
 struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
 {
+	unsigned long flags;
 	struct raw3270 *rp;
 	char *ascebc;
 	int rc;
@@ -822,16 +792,15 @@ struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
 	if (rc)
 		return ERR_PTR(rc);
 	set_bit(RAW3270_FLAGS_CONSOLE, &rp->flags);
-	rc = raw3270_reset_device(rp);
-	if (rc)
-		return ERR_PTR(rc);
-	rc = raw3270_size_device(rp);
-	if (rc)
-		return ERR_PTR(rc);
-	rc = raw3270_reset_device(rp);
-	if (rc)
-		return ERR_PTR(rc);
-	set_bit(RAW3270_FLAGS_READY, &rp->flags);
+	spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+	do {
+		__raw3270_reset_device(rp);
+		while (!raw3270_state_final(rp)) {
+			wait_cons_dev();
+			barrier();
+		}
+	} while (rp->state != RAW3270_STATE_READY);
+	spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
 	return rp;
 }
 
@@ -893,13 +862,13 @@ raw3270_activate_view(struct raw3270_view *view)
 	spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
 	if (rp->view == view)
 		rc = 0;
-	else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
-		rc = -ENODEV;
+	else if (!raw3270_state_ready(rp))
+		rc = -EBUSY;
 	else if (test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
 		rc = -EACCES;
 	else {
 		oldview = NULL;
-		if (rp->view) {
+		if (rp->view && rp->view->fn->deactivate) {
 			oldview = rp->view;
 			oldview->fn->deactivate(oldview);
 		}
@@ -944,7 +913,7 @@ raw3270_deactivate_view(struct raw3270_view *view)
 		list_del_init(&view->list);
 		list_add_tail(&view->list, &rp->view_list);
 		/* Try to activate another view. */
-		if (test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+		if (raw3270_state_ready(rp) &&
 		    !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
 			list_for_each_entry(view, &rp->view_list, list) {
 				rp->view = view;
@@ -975,18 +944,16 @@ raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn, int minor)
 		if (rp->minor != minor)
 			continue;
 		spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
-		if (test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
-			atomic_set(&view->ref_count, 2);
-			view->dev = rp;
-			view->fn = fn;
-			view->model = rp->model;
-			view->rows = rp->rows;
-			view->cols = rp->cols;
-			view->ascebc = rp->ascebc;
-			spin_lock_init(&view->lock);
-			list_add(&view->list, &rp->view_list);
-			rc = 0;
-		}
+		atomic_set(&view->ref_count, 2);
+		view->dev = rp;
+		view->fn = fn;
+		view->model = rp->model;
+		view->rows = rp->rows;
+		view->cols = rp->cols;
+		view->ascebc = rp->ascebc;
+		spin_lock_init(&view->lock);
+		list_add(&view->list, &rp->view_list);
+		rc = 0;
 		spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
 		break;
 	}
@@ -1010,14 +977,11 @@ raw3270_find_view(struct raw3270_fn *fn, int minor)
 		if (rp->minor != minor)
 			continue;
 		spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
-		if (test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
-			view = ERR_PTR(-ENOENT);
-			list_for_each_entry(tmp, &rp->view_list, list) {
-				if (tmp->fn == fn) {
-					raw3270_get_view(tmp);
-					view = tmp;
-					break;
-				}
+		list_for_each_entry(tmp, &rp->view_list, list) {
+			if (tmp->fn == fn) {
+				raw3270_get_view(tmp);
+				view = tmp;
+				break;
 			}
 		}
 		spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
@@ -1044,7 +1008,7 @@ raw3270_del_view(struct raw3270_view *view)
 		rp->view = NULL;
 	}
 	list_del_init(&view->list);
-	if (!rp->view && test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+	if (!rp->view && raw3270_state_ready(rp) &&
 	    !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
 		/* Try to activate another view. */
 		list_for_each_entry(nv, &rp->view_list, list) {
@@ -1072,10 +1036,6 @@ raw3270_delete_device(struct raw3270 *rp)
 
 	/* Remove from device chain. */
 	mutex_lock(&raw3270_mutex);
-	if (rp->clttydev && !IS_ERR(rp->clttydev))
-		device_destroy(class3270, MKDEV(IBM_TTY3270_MAJOR, rp->minor));
-	if (rp->cltubdev && !IS_ERR(rp->cltubdev))
-		device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, rp->minor));
 	list_del_init(&rp->list);
 	mutex_unlock(&raw3270_mutex);
 
@@ -1139,75 +1099,34 @@ static struct attribute_group raw3270_attr_group = {
 
 static int raw3270_create_attributes(struct raw3270 *rp)
 {
-	int rc;
-
-	rc = sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
-	if (rc)
-		goto out;
-
-	rp->clttydev = device_create(class3270, &rp->cdev->dev,
-				     MKDEV(IBM_TTY3270_MAJOR, rp->minor), NULL,
-				     "tty%s", dev_name(&rp->cdev->dev));
-	if (IS_ERR(rp->clttydev)) {
-		rc = PTR_ERR(rp->clttydev);
-		goto out_ttydev;
-	}
-
-	rp->cltubdev = device_create(class3270, &rp->cdev->dev,
-				     MKDEV(IBM_FS3270_MAJOR, rp->minor), NULL,
-				     "tub%s", dev_name(&rp->cdev->dev));
-	if (!IS_ERR(rp->cltubdev))
-		goto out;
-
-	rc = PTR_ERR(rp->cltubdev);
-	device_destroy(class3270, MKDEV(IBM_TTY3270_MAJOR, rp->minor));
-
-out_ttydev:
-	sysfs_remove_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
-out:
-	return rc;
+	return sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
 }
 
 /*
  * Notifier for device addition/removal
  */
-struct raw3270_notifier {
-	struct list_head list;
-	void (*notifier)(int, int);
-};
-
 static LIST_HEAD(raw3270_notifier);
 
-int raw3270_register_notifier(void (*notifier)(int, int))
+int raw3270_register_notifier(struct raw3270_notifier *notifier)
 {
-	struct raw3270_notifier *np;
 	struct raw3270 *rp;
 
-	np = kmalloc(sizeof(struct raw3270_notifier), GFP_KERNEL);
-	if (!np)
-		return -ENOMEM;
-	np->notifier = notifier;
 	mutex_lock(&raw3270_mutex);
-	list_add_tail(&np->list, &raw3270_notifier);
-	list_for_each_entry(rp, &raw3270_devices, list) {
-		get_device(&rp->cdev->dev);
-		notifier(rp->minor, 1);
-	}
+	list_add_tail(&notifier->list, &raw3270_notifier);
+	list_for_each_entry(rp, &raw3270_devices, list)
+		notifier->create(rp->minor);
 	mutex_unlock(&raw3270_mutex);
 	return 0;
 }
 
-void raw3270_unregister_notifier(void (*notifier)(int, int))
+void raw3270_unregister_notifier(struct raw3270_notifier *notifier)
 {
-	struct raw3270_notifier *np;
+	struct raw3270 *rp;
 
 	mutex_lock(&raw3270_mutex);
-	list_for_each_entry(np, &raw3270_notifier, list)
-		if (np->notifier == notifier) {
-			list_del(&np->list);
-			kfree(np);
-			break;
-		}
+	list_for_each_entry(rp, &raw3270_devices, list)
+		notifier->destroy(rp->minor);
+	list_del(&notifier->list);
 	mutex_unlock(&raw3270_mutex);
 }
 
@@ -1217,29 +1136,20 @@ void raw3270_unregister_notifier(void (*notifier)(int, int))
 static int
 raw3270_set_online (struct ccw_device *cdev)
 {
-	struct raw3270 *rp;
 	struct raw3270_notifier *np;
+	struct raw3270 *rp;
 	int rc;
 
 	rp = raw3270_create_device(cdev);
 	if (IS_ERR(rp))
 		return PTR_ERR(rp);
-	rc = raw3270_reset_device(rp);
-	if (rc)
-		goto failure;
-	rc = raw3270_size_device(rp);
-	if (rc)
-		goto failure;
-	rc = raw3270_reset_device(rp);
-	if (rc)
-		goto failure;
 	rc = raw3270_create_attributes(rp);
 	if (rc)
 		goto failure;
-	set_bit(RAW3270_FLAGS_READY, &rp->flags);
+	raw3270_reset_device(rp);
 	mutex_lock(&raw3270_mutex);
 	list_for_each_entry(np, &raw3270_notifier, list)
-		np->notifier(rp->minor, 1);
+		np->create(rp->minor);
 	mutex_unlock(&raw3270_mutex);
 	return 0;
 
@@ -1268,14 +1178,14 @@ raw3270_remove (struct ccw_device *cdev)
 	 */
 	if (rp == NULL)
 		return;
-	clear_bit(RAW3270_FLAGS_READY, &rp->flags);
 
 	sysfs_remove_group(&cdev->dev.kobj, &raw3270_attr_group);
 
 	/* Deactivate current view and remove all views. */
 	spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
 	if (rp->view) {
-		rp->view->fn->deactivate(rp->view);
+		if (rp->view->fn->deactivate)
+			rp->view->fn->deactivate(rp->view);
 		rp->view = NULL;
 	}
 	while (!list_empty(&rp->view_list)) {
@@ -1290,7 +1200,7 @@ raw3270_remove (struct ccw_device *cdev)
 
 	mutex_lock(&raw3270_mutex);
 	list_for_each_entry(np, &raw3270_notifier, list)
-		np->notifier(rp->minor, 0);
+		np->destroy(rp->minor);
 	mutex_unlock(&raw3270_mutex);
 
 	/* Reset 3270 device. */
@@ -1324,7 +1234,7 @@ static int raw3270_pm_stop(struct ccw_device *cdev)
 	if (!rp)
 		return 0;
 	spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
-	if (rp->view)
+	if (rp->view && rp->view->fn->deactivate)
 		rp->view->fn->deactivate(rp->view);
 	if (!test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) {
 		/*
@@ -1351,7 +1261,7 @@ static int raw3270_pm_start(struct ccw_device *cdev)
 		return 0;
 	spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
 	clear_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
-	if (rp->view)
+	if (rp->view && rp->view->fn->activate)
 		rp->view->fn->activate(rp->view);
 	spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
 	return 0;
@@ -1434,6 +1344,7 @@ MODULE_LICENSE("GPL");
 module_init(raw3270_init);
 module_exit(raw3270_exit);
 
+EXPORT_SYMBOL(class3270);
 EXPORT_SYMBOL(raw3270_request_alloc);
 EXPORT_SYMBOL(raw3270_request_free);
 EXPORT_SYMBOL(raw3270_request_reset);
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index ed34eb2199cc..7b73ff8c1bd7 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -91,6 +91,7 @@ struct raw3270_iocb {
 
 struct raw3270;
 struct raw3270_view;
+extern struct class *class3270;
 
 /* 3270 CCW request */
 struct raw3270_request {
@@ -140,6 +141,7 @@ struct raw3270_fn {
 		     struct raw3270_request *, struct irb *);
 	void (*release)(struct raw3270_view *);
 	void (*free)(struct raw3270_view *);
+	void (*resize)(struct raw3270_view *, int, int, int);
 };
 
 /*
@@ -192,8 +194,14 @@ struct raw3270 *raw3270_setup_console(struct ccw_device *cdev);
 void raw3270_wait_cons_dev(struct raw3270 *);
 
 /* Notifier for device addition/removal */
-int raw3270_register_notifier(void (*notifier)(int, int));
-void raw3270_unregister_notifier(void (*notifier)(int, int));
+struct raw3270_notifier {
+	struct list_head list;
+	void (*create)(int minor);
+	void (*destroy)(int minor);
+};
+
+int raw3270_register_notifier(struct raw3270_notifier *);
+void raw3270_unregister_notifier(struct raw3270_notifier *);
 void raw3270_pm_unfreeze(struct raw3270_view *);
 
 /*
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 12c16a65dd25..bd6871bf545a 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -450,7 +450,7 @@ sclp_sync_wait(void)
 	timeout = 0;
 	if (timer_pending(&sclp_request_timer)) {
 		/* Get timeout TOD value */
-		timeout = get_clock() +
+		timeout = get_tod_clock() +
 			  sclp_tod_from_jiffies(sclp_request_timer.expires -
 						jiffies);
 	}
@@ -472,7 +472,7 @@ sclp_sync_wait(void)
 	while (sclp_running_state != sclp_running_state_idle) {
 		/* Check for expired request timer */
 		if (timer_pending(&sclp_request_timer) &&
-		    get_clock() > timeout &&
+		    get_tod_clock() > timeout &&
 		    del_timer(&sclp_request_timer))
 			sclp_request_timer.function(sclp_request_timer.data);
 		cpu_relax();
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index c44d13f607bc..30a2255389e5 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -56,7 +56,6 @@ static int __initdata early_read_info_sccb_valid;
 
 u64 sclp_facilities;
 static u8 sclp_fac84;
-static u8 sclp_fac85;
 static unsigned long long rzm;
 static unsigned long long rnmax;
 
@@ -131,7 +130,8 @@ void __init sclp_facilities_detect(void)
 	sccb = &early_read_info_sccb;
 	sclp_facilities = sccb->facilities;
 	sclp_fac84 = sccb->fac84;
-	sclp_fac85 = sccb->fac85;
+	if (sccb->fac85 & 0x02)
+		S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
 	rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
 	rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
 	rzm <<= 20;
@@ -171,12 +171,6 @@ unsigned long long sclp_get_rzm(void)
 	return rzm;
 }
 
-u8 sclp_get_fac85(void)
-{
-	return sclp_fac85;
-}
-EXPORT_SYMBOL_GPL(sclp_get_fac85);
-
 /*
  * This function will be called after sclp_facilities_detect(), which gets
  * called from early.c code. Therefore the sccb should have valid contents.
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 3860e796b65f..b907dba24025 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -15,6 +15,7 @@
 #include <linux/init.h>
 #include <linux/console.h>
 #include <linux/interrupt.h>
+#include <linux/workqueue.h>
 
 #include <linux/slab.h>
 #include <linux/bootmem.h>
@@ -80,6 +81,8 @@ struct tty3270 {
 	unsigned int highlight;		/* Blink/reverse/underscore */
 	unsigned int f_color;		/* Foreground color */
 	struct tty3270_line *screen;
+	unsigned int n_model, n_cols, n_rows;	/* New model & size */
+	struct work_struct resize_work;
 
 	/* Input stuff. */
 	struct string *prompt;		/* Output string for input area. */
@@ -115,6 +118,7 @@ struct tty3270 {
 #define TTY_UPDATE_ALL		16	/* Recreate screen. */
 
 static void tty3270_update(struct tty3270 *);
+static void tty3270_resize_work(struct work_struct *work);
 
 /*
  * Setup timeout for a device. On timeout trigger an update.
@@ -683,12 +687,6 @@ tty3270_alloc_view(void)
 	INIT_LIST_HEAD(&tp->update);
 	INIT_LIST_HEAD(&tp->rcl_lines);
 	tp->rcl_max = 20;
-	tty_port_init(&tp->port);
-	setup_timer(&tp->timer, (void (*)(unsigned long)) tty3270_update,
-		    (unsigned long) tp);
-	tasklet_init(&tp->readlet,
-		     (void (*)(unsigned long)) tty3270_read_tasklet,
-		     (unsigned long) tp->read);
 
 	for (pages = 0; pages < TTY3270_STRING_PAGES; pages++) {
 		tp->freemem_pages[pages] = (void *)
@@ -710,6 +708,15 @@ tty3270_alloc_view(void)
 	tp->kbd = kbd_alloc();
 	if (!tp->kbd)
 		goto out_reset;
+
+	tty_port_init(&tp->port);
+	setup_timer(&tp->timer, (void (*)(unsigned long)) tty3270_update,
+		    (unsigned long) tp);
+	tasklet_init(&tp->readlet,
+		     (void (*)(unsigned long)) tty3270_read_tasklet,
+		     (unsigned long) tp->read);
+	INIT_WORK(&tp->resize_work, tty3270_resize_work);
+
 	return tp;
 
 out_reset:
@@ -752,42 +759,96 @@ tty3270_free_view(struct tty3270 *tp)
 /*
  * Allocate tty3270 screen.
  */
-static int
-tty3270_alloc_screen(struct tty3270 *tp)
+static struct tty3270_line *
+tty3270_alloc_screen(unsigned int rows, unsigned int cols)
 {
+	struct tty3270_line *screen;
 	unsigned long size;
 	int lines;
 
-	size = sizeof(struct tty3270_line) * (tp->view.rows - 2);
-	tp->screen = kzalloc(size, GFP_KERNEL);
-	if (!tp->screen)
+	size = sizeof(struct tty3270_line) * (rows - 2);
+	screen = kzalloc(size, GFP_KERNEL);
+	if (!screen)
 		goto out_err;
-	for (lines = 0; lines < tp->view.rows - 2; lines++) {
-		size = sizeof(struct tty3270_cell) * tp->view.cols;
-		tp->screen[lines].cells = kzalloc(size, GFP_KERNEL);
-		if (!tp->screen[lines].cells)
+	for (lines = 0; lines < rows - 2; lines++) {
+		size = sizeof(struct tty3270_cell) * cols;
+		screen[lines].cells = kzalloc(size, GFP_KERNEL);
+		if (!screen[lines].cells)
 			goto out_screen;
 	}
-	return 0;
+	return screen;
 out_screen:
 	while (lines--)
-		kfree(tp->screen[lines].cells);
-	kfree(tp->screen);
+		kfree(screen[lines].cells);
+	kfree(screen);
 out_err:
-	return -ENOMEM;
+	return ERR_PTR(-ENOMEM);
 }
 
 /*
  * Free tty3270 screen.
  */
 static void
-tty3270_free_screen(struct tty3270 *tp)
+tty3270_free_screen(struct tty3270_line *screen, unsigned int rows)
 {
 	int lines;
 
-	for (lines = 0; lines < tp->view.rows - 2; lines++)
-		kfree(tp->screen[lines].cells);
-	kfree(tp->screen);
+	for (lines = 0; lines < rows - 2; lines++)
+		kfree(screen[lines].cells);
+	kfree(screen);
+}
+
+/*
+ * Resize tty3270 screen
+ */
+static void tty3270_resize_work(struct work_struct *work)
+{
+	struct tty3270 *tp = container_of(work, struct tty3270, resize_work);
+	struct tty3270_line *screen, *oscreen;
+	struct tty_struct *tty;
+	unsigned int orows;
+	struct winsize ws;
+
+	screen = tty3270_alloc_screen(tp->n_rows, tp->n_cols);
+	if (!screen)
+		return;
+	/* Switch to new output size */
+	spin_lock_bh(&tp->view.lock);
+	oscreen = tp->screen;
+	orows = tp->view.rows;
+	tp->view.model = tp->n_model;
+	tp->view.rows = tp->n_rows;
+	tp->view.cols = tp->n_cols;
+	tp->screen = screen;
+	free_string(&tp->freemem, tp->prompt);
+	free_string(&tp->freemem, tp->status);
+	tty3270_create_prompt(tp);
+	tty3270_create_status(tp);
+	tp->nr_up = 0;
+	while (tp->nr_lines < tp->view.rows - 2)
+		tty3270_blank_line(tp);
+	tp->update_flags = TTY_UPDATE_ALL;
+	spin_unlock_bh(&tp->view.lock);
+	tty3270_free_screen(oscreen, orows);
+	tty3270_set_timer(tp, 1);
+	/* Informat tty layer about new size */
+	tty = tty_port_tty_get(&tp->port);
+	if (!tty)
+		return;
+	ws.ws_row = tp->view.rows - 2;
+	ws.ws_col = tp->view.cols;
+	tty_do_resize(tty, &ws);
+}
+
+static void
+tty3270_resize(struct raw3270_view *view, int model, int rows, int cols)
+{
+	struct tty3270 *tp = container_of(view, struct tty3270, view);
+
+	tp->n_model = model;
+	tp->n_rows = rows;
+	tp->n_cols = cols;
+	schedule_work(&tp->resize_work);
 }
 
 /*
@@ -815,7 +876,8 @@ static void
 tty3270_free(struct raw3270_view *view)
 {
 	struct tty3270 *tp = container_of(view, struct tty3270, view);
-	tty3270_free_screen(tp);
+
+	tty3270_free_screen(tp->screen, tp->view.rows);
 	tty3270_free_view(tp);
 }
 
@@ -827,9 +889,8 @@ tty3270_del_views(void)
 {
 	int i;
 
-	for (i = 0; i < tty3270_max_index; i++) {
-		struct raw3270_view *view =
-			raw3270_find_view(&tty3270_fn, i + RAW3270_FIRSTMINOR);
+	for (i = RAW3270_FIRSTMINOR; i <= tty3270_max_index; i++) {
+		struct raw3270_view *view = raw3270_find_view(&tty3270_fn, i);
 		if (!IS_ERR(view))
 			raw3270_del_view(view);
 	}
@@ -840,7 +901,8 @@ static struct raw3270_fn tty3270_fn = {
 	.deactivate = tty3270_deactivate,
 	.intv = (void *) tty3270_irq,
 	.release = tty3270_release,
-	.free = tty3270_free
+	.free = tty3270_free,
+	.resize = tty3270_resize
 };
 
 /*
@@ -853,8 +915,7 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
 	int i, rc;
 
 	/* Check if the tty3270 is already there. */
-	view = raw3270_find_view(&tty3270_fn,
-				  tty->index + RAW3270_FIRSTMINOR);
+	view = raw3270_find_view(&tty3270_fn, tty->index);
 	if (!IS_ERR(view)) {
 		tp = container_of(view, struct tty3270, view);
 		tty->driver_data = tp;
@@ -866,29 +927,26 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
 		tp->inattr = TF_INPUT;
 		return tty_port_install(&tp->port, driver, tty);
 	}
-	if (tty3270_max_index < tty->index + 1)
-		tty3270_max_index = tty->index + 1;
-
-	/* Quick exit if there is no device for tty->index. */
-	if (PTR_ERR(view) == -ENODEV)
-		return -ENODEV;
+	if (tty3270_max_index < tty->index)
+		tty3270_max_index = tty->index;
 
 	/* Allocate tty3270 structure on first open. */
 	tp = tty3270_alloc_view();
 	if (IS_ERR(tp))
 		return PTR_ERR(tp);
 
-	rc = raw3270_add_view(&tp->view, &tty3270_fn,
-			      tty->index + RAW3270_FIRSTMINOR);
+	rc = raw3270_add_view(&tp->view, &tty3270_fn, tty->index);
 	if (rc) {
 		tty3270_free_view(tp);
 		return rc;
 	}
 
-	rc = tty3270_alloc_screen(tp);
-	if (rc) {
+	tp->screen = tty3270_alloc_screen(tp->view.cols, tp->view.rows);
+	if (IS_ERR(tp->screen)) {
+		rc = PTR_ERR(tp->screen);
 		raw3270_put_view(&tp->view);
 		raw3270_del_view(&tp->view);
+		tty3270_free_view(tp);
 		return rc;
 	}
 
@@ -926,6 +984,20 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
 }
 
 /*
+ * This routine is called whenever a 3270 tty is opened.
+ */
+static int
+tty3270_open(struct tty_struct *tty, struct file *filp)
+{
+	struct tty3270 *tp = tty->driver_data;
+	struct tty_port *port = &tp->port;
+
+	port->count++;
+	tty_port_tty_set(port, tty);
+	return 0;
+}
+
+/*
  * This routine is called when the 3270 tty is closed. We wait
  * for the remaining request to be completed. Then we clean up.
  */
@@ -1753,6 +1825,7 @@ static long tty3270_compat_ioctl(struct tty_struct *tty,
 static const struct tty_operations tty3270_ops = {
 	.install = tty3270_install,
 	.cleanup = tty3270_cleanup,
+	.open = tty3270_open,
 	.close = tty3270_close,
 	.write = tty3270_write,
 	.put_char = tty3270_put_char,
@@ -1771,6 +1844,22 @@ static const struct tty_operations tty3270_ops = {
 	.set_termios = tty3270_set_termios
 };
 
+void tty3270_create_cb(int minor)
+{
+	tty_register_device(tty3270_driver, minor, NULL);
+}
+
+void tty3270_destroy_cb(int minor)
+{
+	tty_unregister_device(tty3270_driver, minor);
+}
+
+struct raw3270_notifier tty3270_notifier =
+{
+	.create = tty3270_create_cb,
+	.destroy = tty3270_destroy_cb,
+};
+
 /*
  * 3270 tty registration code called from tty_init().
  * Most kernel services (incl. kmalloc) are available at this poimt.
@@ -1780,23 +1869,25 @@ static int __init tty3270_init(void)
 	struct tty_driver *driver;
 	int ret;
 
-	driver = alloc_tty_driver(RAW3270_MAXDEVS);
-	if (!driver)
-		return -ENOMEM;
+	driver = tty_alloc_driver(RAW3270_MAXDEVS,
+				  TTY_DRIVER_REAL_RAW |
+				  TTY_DRIVER_DYNAMIC_DEV |
+				  TTY_DRIVER_RESET_TERMIOS);
+	if (IS_ERR(driver))
+		return PTR_ERR(driver);
 
 	/*
 	 * Initialize the tty_driver structure
 	 * Entries in tty3270_driver that are NOT initialized:
 	 * proc_entry, set_termios, flush_buffer, set_ldisc, write_proc
 	 */
-	driver->driver_name = "ttyTUB";
-	driver->name = "ttyTUB";
+	driver->driver_name = "tty3270";
+	driver->name = "3270/tty";
 	driver->major = IBM_TTY3270_MAJOR;
-	driver->minor_start = RAW3270_FIRSTMINOR;
+	driver->minor_start = 0;
 	driver->type = TTY_DRIVER_TYPE_SYSTEM;
 	driver->subtype = SYSTEM_TYPE_TTY;
 	driver->init_termios = tty_std_termios;
-	driver->flags = TTY_DRIVER_RESET_TERMIOS;
 	tty_set_operations(driver, &tty3270_ops);
 	ret = tty_register_driver(driver);
 	if (ret) {
@@ -1804,6 +1895,7 @@ static int __init tty3270_init(void)
 		return ret;
 	}
 	tty3270_driver = driver;
+	raw3270_register_notifier(&tty3270_notifier);
 	return 0;
 }
 
@@ -1812,6 +1904,7 @@ tty3270_exit(void)
 {
 	struct tty_driver *driver;
 
+	raw3270_unregister_notifier(&tty3270_notifier);
 	driver = tty3270_driver;
 	tty3270_driver = NULL;
 	tty_unregister_driver(driver);
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index e3b9308b0fe3..1d61a01576d2 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -62,6 +62,7 @@ static struct dentry *zcore_dir;
 static struct dentry *zcore_file;
 static struct dentry *zcore_memmap_file;
 static struct dentry *zcore_reipl_file;
+static struct dentry *zcore_hsa_file;
 static struct ipl_parameter_block *ipl_block;
 
 /*
@@ -77,6 +78,8 @@ static int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode)
 	int offs, blk_num;
 	static char buf[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
 
+	if (!hsa_available)
+		return -ENODATA;
 	if (count == 0)
 		return 0;
 
@@ -278,6 +281,15 @@ next:
 }
 
 /*
+ * Release the HSA
+ */
+static void release_hsa(void)
+{
+	diag308(DIAG308_REL_HSA, NULL);
+	hsa_available = 0;
+}
+
+/*
  * Read routine for zcore character device
  * First 4K are dump header
  * Next 32MB are HSA Memory
@@ -363,8 +375,8 @@ static int zcore_open(struct inode *inode, struct file *filp)
 
 static int zcore_release(struct inode *inode, struct file *filep)
 {
-	diag308(DIAG308_REL_HSA, NULL);
-	hsa_available = 0;
+	if (hsa_available)
+		release_hsa();
 	return 0;
 }
 
@@ -474,6 +486,41 @@ static const struct file_operations zcore_reipl_fops = {
 	.llseek		= no_llseek,
 };
 
+static ssize_t zcore_hsa_read(struct file *filp, char __user *buf,
+			      size_t count, loff_t *ppos)
+{
+	static char str[18];
+
+	if (hsa_available)
+		snprintf(str, sizeof(str), "%lx\n", ZFCPDUMP_HSA_SIZE);
+	else
+		snprintf(str, sizeof(str), "0\n");
+	return simple_read_from_buffer(buf, count, ppos, str, strlen(str));
+}
+
+static ssize_t zcore_hsa_write(struct file *filp, const char __user *buf,
+			       size_t count, loff_t *ppos)
+{
+	char value;
+
+	if (*ppos != 0)
+		return -EPIPE;
+	if (copy_from_user(&value, buf, 1))
+		return -EFAULT;
+	if (value != '0')
+		return -EINVAL;
+	release_hsa();
+	return count;
+}
+
+static const struct file_operations zcore_hsa_fops = {
+	.owner		= THIS_MODULE,
+	.write		= zcore_hsa_write,
+	.read		= zcore_hsa_read,
+	.open		= nonseekable_open,
+	.llseek		= no_llseek,
+};
+
 #ifdef CONFIG_32BIT
 
 static void __init set_lc_mask(struct save_area *map)
@@ -590,7 +637,7 @@ static int __init zcore_header_init(int arch, struct zcore_header *hdr)
 	hdr->rmem_size = memory;
 	hdr->mem_end = sys_info.mem_size;
 	hdr->num_pages = memory / PAGE_SIZE;
-	hdr->tod = get_clock();
+	hdr->tod = get_tod_clock();
 	get_cpu_id(&hdr->cpu_id);
 	for (i = 0; zfcpdump_save_areas[i]; i++) {
 		prefix = zfcpdump_save_areas[i]->pref_reg;
@@ -658,6 +705,7 @@ static int __init zcore_init(void)
 	rc = check_sdias();
 	if (rc)
 		goto fail;
+	hsa_available = 1;
 
 	rc = memcpy_hsa_kernel(&arch, __LC_AR_MODE_ID, 1);
 	if (rc)
@@ -714,9 +762,16 @@ static int __init zcore_init(void)
 		rc = -ENOMEM;
 		goto fail_memmap_file;
 	}
-	hsa_available = 1;
+	zcore_hsa_file = debugfs_create_file("hsa", S_IRUSR|S_IWUSR, zcore_dir,
+					     NULL, &zcore_hsa_fops);
+	if (!zcore_hsa_file) {
+		rc = -ENOMEM;
+		goto fail_reipl_file;
+	}
 	return 0;
 
+fail_reipl_file:
+	debugfs_remove(zcore_reipl_file);
 fail_memmap_file:
 	debugfs_remove(zcore_memmap_file);
 fail_file:
@@ -733,6 +788,7 @@ static void __exit zcore_exit(void)
 	debug_unregister(zcore_dbf);
 	sclp_sdias_exit();
 	free_page((unsigned long) ipl_block);
+	debugfs_remove(zcore_hsa_file);
 	debugfs_remove(zcore_reipl_file);
 	debugfs_remove(zcore_memmap_file);
 	debugfs_remove(zcore_file);
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 10729bbceced..31ceef1beb8b 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -435,7 +435,6 @@ static void chsc_process_sei_scm_change(struct chsc_sei_nt0_area *sei_area)
 
 static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area)
 {
-#ifdef CONFIG_PCI
 	switch (sei_area->cc) {
 	case 1:
 		zpci_event_error(sei_area->ccdf);
@@ -444,11 +443,10 @@ static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area)
 		zpci_event_availability(sei_area->ccdf);
 		break;
 	default:
-		CIO_CRW_EVENT(2, "chsc: unhandled sei content code %d\n",
+		CIO_CRW_EVENT(2, "chsc: sei nt2 unhandled cc=%d\n",
 			      sei_area->cc);
 		break;
 	}
-#endif
 }
 
 static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area)
@@ -471,13 +469,19 @@ static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area)
 		chsc_process_sei_scm_change(sei_area);
 		break;
 	default: /* other stuff */
-		CIO_CRW_EVENT(4, "chsc: unhandled sei content code %d\n",
+		CIO_CRW_EVENT(2, "chsc: sei nt0 unhandled cc=%d\n",
 			      sei_area->cc);
 		break;
 	}
+
+	/* Check if we might have lost some information. */
+	if (sei_area->flags & 0x40) {
+		CIO_CRW_EVENT(2, "chsc: event overflow\n");
+		css_schedule_eval_all();
+	}
 }
 
-static int __chsc_process_crw(struct chsc_sei *sei, u64 ntsm)
+static void chsc_process_event_information(struct chsc_sei *sei, u64 ntsm)
 {
 	do {
 		memset(sei, 0, sizeof(*sei));
@@ -488,40 +492,37 @@ static int __chsc_process_crw(struct chsc_sei *sei, u64 ntsm)
 		if (chsc(sei))
 			break;
 
-		if (sei->response.code == 0x0001) {
-			CIO_CRW_EVENT(2, "chsc: sei successful\n");
-
-			/* Check if we might have lost some information. */
-			if (sei->u.nt0_area.flags & 0x40) {
-				CIO_CRW_EVENT(2, "chsc: event overflow\n");
-				css_schedule_eval_all();
-			}
-
-			switch (sei->nt) {
-			case 0:
-				chsc_process_sei_nt0(&sei->u.nt0_area);
-				break;
-			case 2:
-				chsc_process_sei_nt2(&sei->u.nt2_area);
-				break;
-			default:
-				CIO_CRW_EVENT(2, "chsc: unhandled nt=%d\n",
-					      sei->nt);
-				break;
-			}
-		} else {
+		if (sei->response.code != 0x0001) {
 			CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n",
 				      sei->response.code);
 			break;
 		}
-	} while (sei->u.nt0_area.flags & 0x80);
 
-	return 0;
+		CIO_CRW_EVENT(2, "chsc: sei successful (nt=%d)\n", sei->nt);
+		switch (sei->nt) {
+		case 0:
+			chsc_process_sei_nt0(&sei->u.nt0_area);
+			break;
+		case 2:
+			chsc_process_sei_nt2(&sei->u.nt2_area);
+			break;
+		default:
+			CIO_CRW_EVENT(2, "chsc: unhandled nt: %d\n", sei->nt);
+			break;
+		}
+	} while (sei->u.nt0_area.flags & 0x80);
 }
 
+/*
+ * Handle channel subsystem related CRWs.
+ * Use store event information to find out what's going on.
+ *
+ * Note: Access to sei_page is serialized through machine check handler
+ * thread, so no need for locking.
+ */
 static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
 {
-	struct chsc_sei *sei;
+	struct chsc_sei *sei = sei_page;
 
 	if (overflow) {
 		css_schedule_eval_all();
@@ -531,14 +532,9 @@ static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
 		      "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
 		      crw0->slct, crw0->oflw, crw0->chn, crw0->rsc, crw0->anc,
 		      crw0->erc, crw0->rsid);
-	if (!sei_page)
-		return;
-	/* Access to sei_page is serialized through machine check handler
-	 * thread, so no need for locking. */
-	sei = sei_page;
 
 	CIO_TRACE_EVENT(2, "prcss");
-	__chsc_process_crw(sei, CHSC_SEI_NT0 | CHSC_SEI_NT2);
+	chsc_process_event_information(sei, CHSC_SEI_NT0 | CHSC_SEI_NT2);
 }
 
 void chsc_chp_online(struct chp_id chpid)
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 662dab4b93e6..227e05f674b3 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -157,7 +157,7 @@ int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token);
 #ifdef CONFIG_SCM_BUS
 int scm_update_information(void);
 #else /* CONFIG_SCM_BUS */
-#define scm_update_information() 0
+static inline int scm_update_information(void) { return 0; }
 #endif /* CONFIG_SCM_BUS */
 
 
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index c8faf6230b0f..986ef6a92a41 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -962,9 +962,9 @@ static void css_reset(void)
 			atomic_inc(&chpid_reset_count);
 	}
 	/* Wait for machine check for all channel paths. */
-	timeout = get_clock() + (RCHP_TIMEOUT << 12);
+	timeout = get_tod_clock() + (RCHP_TIMEOUT << 12);
 	while (atomic_read(&chpid_reset_count) != 0) {
-		if (get_clock() > timeout)
+		if (get_tod_clock() > timeout)
 			break;
 		cpu_relax();
 	}
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index c9fc61c0a866..4495e0627a40 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -33,7 +33,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/slab.h>
-#include <linux/timex.h>	/* get_clock() */
+#include <linux/timex.h>	/* get_tod_clock() */
 
 #include <asm/ccwdev.h>
 #include <asm/cio.h>
@@ -326,7 +326,7 @@ static int cmf_copy_block(struct ccw_device *cdev)
 		memcpy(cmb_data->last_block, hw_block, cmb_data->size);
 		memcpy(reference_buf, hw_block, cmb_data->size);
 	} while (memcmp(cmb_data->last_block, reference_buf, cmb_data->size));
-	cmb_data->last_update = get_clock();
+	cmb_data->last_update = get_tod_clock();
 	kfree(reference_buf);
 	return 0;
 }
@@ -428,7 +428,7 @@ static void cmf_generic_reset(struct ccw_device *cdev)
 		memset(cmbops->align(cmb_data->hw_block), 0, cmb_data->size);
 		cmb_data->last_update = 0;
 	}
-	cdev->private->cmb_start_time = get_clock();
+	cdev->private->cmb_start_time = get_tod_clock();
 	spin_unlock_irq(cdev->ccwlock);
 }
 
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index fd00afd8b850..a239237d43f3 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -780,7 +780,7 @@ static int __init setup_css(int nr)
 	css->cssid = nr;
 	dev_set_name(&css->device, "css%x", nr);
 	css->device.release = channel_subsystem_release;
-	tod_high = (u32) (get_clock() >> 32);
+	tod_high = (u32) (get_tod_clock() >> 32);
 	css_generate_pgid(css, tod_high);
 	return 0;
 }
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 7cd5c6812ac7..c6767f5a58b2 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -632,6 +632,14 @@ initiate_logging(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
+static ssize_t vpm_show(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct subchannel *sch = to_subchannel(dev);
+
+	return sprintf(buf, "%02x\n", sch->vpm);
+}
+
 static DEVICE_ATTR(chpids, 0444, chpids_show, NULL);
 static DEVICE_ATTR(pimpampom, 0444, pimpampom_show, NULL);
 static DEVICE_ATTR(devtype, 0444, devtype_show, NULL);
@@ -640,11 +648,13 @@ static DEVICE_ATTR(modalias, 0444, modalias_show, NULL);
 static DEVICE_ATTR(online, 0644, online_show, online_store);
 static DEVICE_ATTR(availability, 0444, available_show, NULL);
 static DEVICE_ATTR(logging, 0200, NULL, initiate_logging);
+static DEVICE_ATTR(vpm, 0444, vpm_show, NULL);
 
 static struct attribute *io_subchannel_attrs[] = {
 	&dev_attr_chpids.attr,
 	&dev_attr_pimpampom.attr,
 	&dev_attr_logging.attr,
+	&dev_attr_vpm.attr,
 	NULL,
 };
 
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 1bb1d00095af..c7638c543250 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -47,7 +47,7 @@ static void ccw_timeout_log(struct ccw_device *cdev)
 	cc = stsch_err(sch->schid, &schib);
 
 	printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, "
-	       "device information:\n", get_clock());
+	       "device information:\n", get_tod_clock());
 	printk(KERN_WARNING "cio: orb:\n");
 	print_hex_dump(KERN_WARNING, "cio:  ", DUMP_PREFIX_NONE, 16, 1,
 		       orb, sizeof(*orb), 0);
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index 908d287f66c1..37ada05e82a5 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -23,6 +23,8 @@
 #define PGID_RETRIES	256
 #define PGID_TIMEOUT	(10 * HZ)
 
+static void verify_start(struct ccw_device *cdev);
+
 /*
  * Process path verification data and report result.
  */
@@ -70,8 +72,8 @@ static void nop_do(struct ccw_device *cdev)
 	struct subchannel *sch = to_subchannel(cdev->dev.parent);
 	struct ccw_request *req = &cdev->private->req;
 
-	/* Adjust lpm. */
-	req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam & sch->opm);
+	req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam & sch->opm &
+			      ~cdev->private->path_noirq_mask);
 	if (!req->lpm)
 		goto out_nopath;
 	nop_build_cp(cdev);
@@ -102,10 +104,20 @@ static void nop_callback(struct ccw_device *cdev, void *data, int rc)
 	struct subchannel *sch = to_subchannel(cdev->dev.parent);
 	struct ccw_request *req = &cdev->private->req;
 
-	if (rc == 0)
+	switch (rc) {
+	case 0:
 		sch->vpm |= req->lpm;
-	else if (rc != -EACCES)
+		break;
+	case -ETIME:
+		cdev->private->path_noirq_mask |= req->lpm;
+		break;
+	case -EACCES:
+		cdev->private->path_notoper_mask |= req->lpm;
+		break;
+	default:
 		goto err;
+	}
+	/* Continue on the next path. */
 	req->lpm >>= 1;
 	nop_do(cdev);
 	return;
@@ -132,6 +144,48 @@ static void spid_build_cp(struct ccw_device *cdev, u8 fn)
 	req->cp		= cp;
 }
 
+static void pgid_wipeout_callback(struct ccw_device *cdev, void *data, int rc)
+{
+	if (rc) {
+		/* We don't know the path groups' state. Abort. */
+		verify_done(cdev, rc);
+		return;
+	}
+	/*
+	 * Path groups have been reset. Restart path verification but
+	 * leave paths in path_noirq_mask out.
+	 */
+	cdev->private->flags.pgid_unknown = 0;
+	verify_start(cdev);
+}
+
+/*
+ * Reset pathgroups and restart path verification, leave unusable paths out.
+ */
+static void pgid_wipeout_start(struct ccw_device *cdev)
+{
+	struct subchannel *sch = to_subchannel(cdev->dev.parent);
+	struct ccw_dev_id *id = &cdev->private->dev_id;
+	struct ccw_request *req = &cdev->private->req;
+	u8 fn;
+
+	CIO_MSG_EVENT(2, "wipe: device 0.%x.%04x: pvm=%02x nim=%02x\n",
+		      id->ssid, id->devno, cdev->private->pgid_valid_mask,
+		      cdev->private->path_noirq_mask);
+
+	/* Initialize request data. */
+	memset(req, 0, sizeof(*req));
+	req->timeout	= PGID_TIMEOUT;
+	req->maxretries	= PGID_RETRIES;
+	req->lpm	= sch->schib.pmcw.pam;
+	req->callback	= pgid_wipeout_callback;
+	fn = SPID_FUNC_DISBAND;
+	if (cdev->private->flags.mpath)
+		fn |= SPID_FUNC_MULTI_PATH;
+	spid_build_cp(cdev, fn);
+	ccw_request_start(cdev);
+}
+
 /*
  * Perform establish/resign SET PGID on a single path.
  */
@@ -157,11 +211,14 @@ static void spid_do(struct ccw_device *cdev)
 	return;
 
 out_nopath:
+	if (cdev->private->flags.pgid_unknown) {
+		/* At least one SPID could be partially done. */
+		pgid_wipeout_start(cdev);
+		return;
+	}
 	verify_done(cdev, sch->vpm ? 0 : -EACCES);
 }
 
-static void verify_start(struct ccw_device *cdev);
-
 /*
  * Process SET PGID request result for a single path.
  */
@@ -174,7 +231,12 @@ static void spid_callback(struct ccw_device *cdev, void *data, int rc)
 	case 0:
 		sch->vpm |= req->lpm & sch->opm;
 		break;
+	case -ETIME:
+		cdev->private->flags.pgid_unknown = 1;
+		cdev->private->path_noirq_mask |= req->lpm;
+		break;
 	case -EACCES:
+		cdev->private->path_notoper_mask |= req->lpm;
 		break;
 	case -EOPNOTSUPP:
 		if (cdev->private->flags.mpath) {
@@ -330,8 +392,9 @@ static void snid_done(struct ccw_device *cdev, int rc)
 	else {
 		donepm = pgid_to_donepm(cdev);
 		sch->vpm = donepm & sch->opm;
-		cdev->private->pgid_todo_mask &= ~donepm;
 		cdev->private->pgid_reset_mask |= reset;
+		cdev->private->pgid_todo_mask &=
+			~(donepm | cdev->private->path_noirq_mask);
 		pgid_fill(cdev, pgid);
 	}
 out:
@@ -341,6 +404,10 @@ out:
 		      cdev->private->pgid_todo_mask, mismatch, reserved, reset);
 	switch (rc) {
 	case 0:
+		if (cdev->private->flags.pgid_unknown) {
+			pgid_wipeout_start(cdev);
+			return;
+		}
 		/* Anything left to do? */
 		if (cdev->private->pgid_todo_mask == 0) {
 			verify_done(cdev, sch->vpm == 0 ? -EACCES : 0);
@@ -384,9 +451,10 @@ static void snid_do(struct ccw_device *cdev)
 {
 	struct subchannel *sch = to_subchannel(cdev->dev.parent);
 	struct ccw_request *req = &cdev->private->req;
+	int ret;
 
-	/* Adjust lpm if paths are not set in pam. */
-	req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam);
+	req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam &
+			      ~cdev->private->path_noirq_mask);
 	if (!req->lpm)
 		goto out_nopath;
 	snid_build_cp(cdev);
@@ -394,7 +462,13 @@ static void snid_do(struct ccw_device *cdev)
 	return;
 
 out_nopath:
-	snid_done(cdev, cdev->private->pgid_valid_mask ? 0 : -EACCES);
+	if (cdev->private->pgid_valid_mask)
+		ret = 0;
+	else if (cdev->private->path_noirq_mask)
+		ret = -ETIME;
+	else
+		ret = -EACCES;
+	snid_done(cdev, ret);
 }
 
 /*
@@ -404,10 +478,21 @@ static void snid_callback(struct ccw_device *cdev, void *data, int rc)
 {
 	struct ccw_request *req = &cdev->private->req;
 
-	if (rc == 0)
+	switch (rc) {
+	case 0:
 		cdev->private->pgid_valid_mask |= req->lpm;
-	else if (rc != -EACCES)
+		break;
+	case -ETIME:
+		cdev->private->flags.pgid_unknown = 1;
+		cdev->private->path_noirq_mask |= req->lpm;
+		break;
+	case -EACCES:
+		cdev->private->path_notoper_mask |= req->lpm;
+		break;
+	default:
 		goto err;
+	}
+	/* Continue on the next path. */
 	req->lpm >>= 1;
 	snid_do(cdev);
 	return;
@@ -427,6 +512,13 @@ static void verify_start(struct ccw_device *cdev)
 
 	sch->vpm = 0;
 	sch->lpm = sch->schib.pmcw.pam;
+
+	/* Initialize PGID data. */
+	memset(cdev->private->pgid, 0, sizeof(cdev->private->pgid));
+	cdev->private->pgid_valid_mask = 0;
+	cdev->private->pgid_todo_mask = sch->schib.pmcw.pam;
+	cdev->private->path_notoper_mask = 0;
+
 	/* Initialize request data. */
 	memset(req, 0, sizeof(*req));
 	req->timeout	= PGID_TIMEOUT;
@@ -459,14 +551,8 @@ static void verify_start(struct ccw_device *cdev)
  */
 void ccw_device_verify_start(struct ccw_device *cdev)
 {
-	struct subchannel *sch = to_subchannel(cdev->dev.parent);
-
 	CIO_TRACE_EVENT(4, "vrfy");
 	CIO_HEX_EVENT(4, &cdev->private->dev_id, sizeof(cdev->private->dev_id));
-	/* Initialize PGID data. */
-	memset(cdev->private->pgid, 0, sizeof(cdev->private->pgid));
-	cdev->private->pgid_valid_mask = 0;
-	cdev->private->pgid_todo_mask = sch->schib.pmcw.pam;
 	/*
 	 * Initialize pathgroup and multipath state with target values.
 	 * They may change in the course of path verification.
@@ -474,6 +560,7 @@ void ccw_device_verify_start(struct ccw_device *cdev)
 	cdev->private->flags.pgroup = cdev->private->options.pgroup;
 	cdev->private->flags.mpath = cdev->private->options.mpath;
 	cdev->private->flags.doverify = 0;
+	cdev->private->path_noirq_mask = 0;
 	verify_start(cdev);
 }
 
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index 76253dfcc1be..b108f4a5c7dd 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -126,6 +126,10 @@ struct ccw_device_private {
 	u8 pgid_valid_mask;	/* mask of valid PGIDs */
 	u8 pgid_todo_mask;	/* mask of PGIDs to be adjusted */
 	u8 pgid_reset_mask;	/* mask of PGIDs which were reset */
+	u8 path_noirq_mask;	/* mask of paths for which no irq was
+				   received */
+	u8 path_notoper_mask;	/* mask of paths which were found
+				   not operable */
 	u8 path_gone_mask;	/* mask of paths, that became unavailable */
 	u8 path_new_mask;	/* mask of paths, that became available */
 	struct {
@@ -145,6 +149,7 @@ struct ccw_device_private {
 		unsigned int resuming:1;    /* recognition while resume */
 		unsigned int pgroup:1;	    /* pathgroup is set up */
 		unsigned int mpath:1;	    /* multipathing is set up */
+		unsigned int pgid_unknown:1;/* unknown pgid state */
 		unsigned int initialized:1; /* set if initial reference held */
 	} __attribute__((packed)) flags;
 	unsigned long intparm;	/* user interruption parameter */
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 1671d3461f29..abc550e5dd35 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -338,10 +338,10 @@ again:
 		retries++;
 
 		if (!start_time) {
-			start_time = get_clock();
+			start_time = get_tod_clock();
 			goto again;
 		}
-		if ((get_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE)
+		if ((get_tod_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE)
 			goto again;
 	}
 	if (retries) {
@@ -504,7 +504,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
 	int count, stop;
 	unsigned char state = 0;
 
-	q->timestamp = get_clock();
+	q->timestamp = get_tod_clock();
 
 	/*
 	 * Don't check 128 buffers, as otherwise qdio_inbound_q_moved
@@ -563,7 +563,7 @@ static int qdio_inbound_q_moved(struct qdio_q *q)
 	if (bufnr != q->last_move) {
 		q->last_move = bufnr;
 		if (!is_thinint_irq(q->irq_ptr) && MACHINE_IS_LPAR)
-			q->u.in.timestamp = get_clock();
+			q->u.in.timestamp = get_tod_clock();
 		return 1;
 	} else
 		return 0;
@@ -595,7 +595,7 @@ static inline int qdio_inbound_q_done(struct qdio_q *q)
 	 * At this point we know, that inbound first_to_check
 	 * has (probably) not moved (see qdio_inbound_processing).
 	 */
-	if (get_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) {
+	if (get_tod_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) {
 		DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%02x",
 			      q->first_to_check);
 		return 1;
@@ -772,7 +772,7 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
 	int count, stop;
 	unsigned char state = 0;
 
-	q->timestamp = get_clock();
+	q->timestamp = get_tod_clock();
 
 	if (need_siga_sync(q))
 		if (((queue_type(q) != QDIO_IQDIO_QFMT) &&
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index d690b33846cc..d87961d4c0de 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -818,7 +818,7 @@ static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
 
 static inline int qeth_get_micros(void)
 {
-	return (int) (get_clock() >> 12);
+	return (int) (get_tod_clock() >> 12);
 }
 
 static inline int qeth_get_ip_version(struct sk_buff *skb)
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index c96320d79fbc..c7e148f33b2a 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -727,7 +727,7 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
 	zfcp_reqlist_add(adapter->req_list, req);
 
 	req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free);
-	req->issued = get_clock();
+	req->issued = get_tod_clock();
 	if (zfcp_qdio_send(qdio, &req->qdio_req)) {
 		del_timer(&req->timer);
 		/* lookup request again, list might have changed */
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 50b5615848f6..665e3cfaaf85 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -68,7 +68,7 @@ static inline void zfcp_qdio_account(struct zfcp_qdio *qdio)
 	unsigned long long now, span;
 	int used;
 
-	now = get_clock_monotonic();
+	now = get_tod_clock_monotonic();
 	span = (now - qdio->req_q_time) >> 12;
 	used = QDIO_MAX_BUFFERS_PER_Q - atomic_read(&qdio->req_q_free);
 	qdio->req_q_util += used * span;
author	Linus Torvalds <torvalds@linux-foundation.org>	2013-02-22 05:54:03 +0400
committer	Linus Torvalds <torvalds@linux-foundation.org>	2013-02-22 05:54:03 +0400
commit	81ec44a6c69342fec1b1140c60a604027e429f69 (patch)
tree	ee6bec8a94ef28e111bf766cf4b7a9366cb4f7c1 /drivers/s390
parent	48a732dfaa77a4dfec803aa8f248373998704f76 (diff)
parent	e80cfc31d872b6b85b8966bce6ba80bee401a7dd (diff)
download	linux-81ec44a6c69342fec1b1140c60a604027e429f69.tar.xz