Merge branch 'master' into for-next

Fast-forward merge with Linus to be able to merge patches
based on more recent version of the tree.

23 files changed, 68 insertions, 44 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 432444af7ee..a1d3ddba99c 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -24,6 +24,7 @@
 #include <linux/mutex.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
+#include <linux/vmalloc.h>
 
 #include <asm/ccwdev.h>
 #include <asm/ebcdic.h>
@@ -888,11 +889,11 @@ char *dasd_get_user_string(const char __user *user_buf, size_t user_len)
 {
 	char *buffer;
 
-	buffer = kmalloc(user_len + 1, GFP_KERNEL);
+	buffer = vmalloc(user_len + 1);
 	if (buffer == NULL)
 		return ERR_PTR(-ENOMEM);
 	if (copy_from_user(buffer, user_buf, user_len) != 0) {
-		kfree(buffer);
+		vfree(buffer);
 		return ERR_PTR(-EFAULT);
 	}
 	/* got the string, now strip linefeed. */
@@ -930,7 +931,7 @@ static ssize_t dasd_stats_write(struct file *file,
 		dasd_profile_off(prof);
 	} else
 		rc = -EINVAL;
-	kfree(buffer);
+	vfree(buffer);
 	return rc;
 }
 
@@ -1042,7 +1043,7 @@ static ssize_t dasd_stats_global_write(struct file *file,
 		dasd_global_profile_level = DASD_PROFILE_OFF;
 	} else
 		rc = -EINVAL;
-	kfree(buffer);
+	vfree(buffer);
 	return rc;
 }
 
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 30fb979d684..6e835c9fdfc 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -1461,6 +1461,15 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
 				"Read device characteristic failed, rc=%d", rc);
 		goto out_err3;
 	}
+
+	if ((device->features & DASD_FEATURE_USERAW) &&
+	    !(private->rdc_data.facilities.RT_in_LR)) {
+		dev_err(&device->cdev->dev, "The storage server does not "
+			"support raw-track access\n");
+		rc = -EINVAL;
+		goto out_err3;
+	}
+
 	/* find the valid cylinder size */
 	if (private->rdc_data.no_cyl == LV_COMPAT_CYL &&
 	    private->rdc_data.long_no_cyl)
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index 77f778b7b07..16c5208c3dc 100644
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -21,7 +21,7 @@
 #include <linux/slab.h>
 
 #include <asm/uaccess.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/ebcdic.h>
 
 #include "dasd_int.h"
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index eb4e034378c..f1a2016829f 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -249,6 +249,7 @@ static int dasd_ioctl_reset_profile(struct dasd_block *block)
 static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp)
 {
 	struct dasd_profile_info_t *data;
+	int rc = 0;
 
 	data = kmalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
@@ -279,11 +280,14 @@ static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp)
 		spin_unlock_bh(&block->profile.lock);
 	} else {
 		spin_unlock_bh(&block->profile.lock);
-		return -EIO;
+		rc = -EIO;
+		goto out;
 	}
 	if (copy_to_user(argp, data, sizeof(*data)))
-		return -EFAULT;
-	return 0;
+		rc = -EFAULT;
+out:
+	kfree(data);
+	return rc;
 }
 #else
 static int dasd_ioctl_reset_profile(struct dasd_block *block)
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c
index 6c3c5364d08..e12989fff4f 100644
--- a/drivers/s390/block/dasd_proc.c
+++ b/drivers/s390/block/dasd_proc.c
@@ -312,14 +312,14 @@ static ssize_t dasd_stats_proc_write(struct file *file,
 		pr_info("The statistics have been reset\n");
 	} else
 		goto out_parse_error;
-	kfree(buffer);
+	vfree(buffer);
 	return user_len;
 out_parse_error:
 	rc = -EINVAL;
 	pr_warning("%s is not a supported value for /proc/dasd/statistics\n",
 		str);
 out_error:
-	kfree(buffer);
+	vfree(buffer);
 	return rc;
 #else
 	pr_warning("/proc/dasd/statistics: is not activated in this kernel\n");
diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c
index 7ad30e72f86..5f9f929e891 100644
--- a/drivers/s390/char/sclp_async.c
+++ b/drivers/s390/char/sclp_async.c
@@ -82,12 +82,9 @@ static int proc_handler_callhome(struct ctl_table *ctl, int write,
 			return -EFAULT;
 	} else {
 		len = *count;
-		rc = copy_from_user(buf, buffer, sizeof(buf));
-		if (rc != 0)
-			return -EFAULT;
-		buf[sizeof(buf) - 1] = '\0';
-		if (strict_strtoul(buf, 0, &val) != 0)
-			return -EINVAL;
+		rc = kstrtoul_from_user(buffer, len, 0, &val);
+		if (rc)
+			return rc;
 		if (val != 0 && val != 1)
 			return -EINVAL;
 		callhome_enabled = val;
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index be55fb2b1b1..837e010299a 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -383,8 +383,10 @@ static int sclp_attach_storage(u8 id)
 	switch (sccb->header.response_code) {
 	case 0x0020:
 		set_bit(id, sclp_storage_ids);
-		for (i = 0; i < sccb->assigned; i++)
-			sclp_unassign_storage(sccb->entries[i] >> 16);
+		for (i = 0; i < sccb->assigned; i++) {
+			if (sccb->entries[i])
+				sclp_unassign_storage(sccb->entries[i] >> 16);
+		}
 		break;
 	default:
 		rc = -EIO;
diff --git a/drivers/s390/char/sclp_quiesce.c b/drivers/s390/char/sclp_quiesce.c
index 05909a7df8b..a90a02c28d6 100644
--- a/drivers/s390/char/sclp_quiesce.c
+++ b/drivers/s390/char/sclp_quiesce.c
@@ -13,7 +13,7 @@
 #include <linux/smp.h>
 #include <linux/init.h>
 #include <linux/reboot.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/ptrace.h>
 #include <asm/sigp.h>
 #include <asm/smp.h>
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index c837d7419a6..524d988d89d 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -21,7 +21,7 @@
 #include <linux/types.h>
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/uaccess.h>
 #include <asm/cpcmd.h>
 #include <asm/debug.h>
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index 7e297c7bb5f..0b7245c72d5 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -2,7 +2,7 @@
 #define S390_DEVICE_H
 
 #include <asm/ccwdev.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <linux/wait.h>
 #include <linux/notifier.h>
 #include "io_sch.h"
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 7bc643f3f5a..e5c966462c5 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -14,6 +14,8 @@
 #include "chsc.h"
 
 #define QDIO_BUSY_BIT_PATIENCE		(100 << 12)	/* 100 microseconds */
+#define QDIO_BUSY_BIT_RETRY_DELAY	10		/* 10 milliseconds */
+#define QDIO_BUSY_BIT_RETRIES		1000		/* = 10s retry time */
 #define QDIO_INPUT_THRESHOLD		(500 << 12)	/* 500 microseconds */
 
 /*
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index f8b03a636e4..0e615cb912d 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -188,19 +188,13 @@ static ssize_t qperf_seq_write(struct file *file, const char __user *ubuf,
 	struct qdio_irq *irq_ptr = seq->private;
 	struct qdio_q *q;
 	unsigned long val;
-	char buf[8];
 	int ret, i;
 
 	if (!irq_ptr)
 		return 0;
-	if (count >= sizeof(buf))
-		return -EINVAL;
-	if (copy_from_user(&buf, ubuf, count))
-		return -EFAULT;
-	buf[count] = 0;
-
-	ret = strict_strtoul(buf, 10, &val);
-	if (ret < 0)
+
+	ret = kstrtoul_from_user(ubuf, count, 10, &val);
+	if (ret)
 		return ret;
 
 	switch (val) {
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 570d4da1069..288c9140290 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -15,7 +15,7 @@
 #include <linux/delay.h>
 #include <linux/gfp.h>
 #include <linux/kernel_stat.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/debug.h>
 #include <asm/qdio.h>
 
@@ -313,7 +313,7 @@ static int qdio_siga_output(struct qdio_q *q, unsigned int *busy_bit)
 	unsigned long schid = *((u32 *) &q->irq_ptr->schid);
 	unsigned int fc = QDIO_SIGA_WRITE;
 	u64 start_time = 0;
-	int cc;
+	int retries = 0, cc;
 
 	if (is_qebsm(q)) {
 		schid = q->irq_ptr->sch_token;
@@ -325,6 +325,7 @@ again:
 	/* hipersocket busy condition */
 	if (unlikely(*busy_bit)) {
 		WARN_ON(queue_type(q) != QDIO_IQDIO_QFMT || cc != 2);
+		retries++;
 
 		if (!start_time) {
 			start_time = get_clock();
@@ -333,6 +334,11 @@ again:
 		if ((get_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE)
 			goto again;
 	}
+	if (retries) {
+		DBF_DEV_EVENT(DBF_WARN, q->irq_ptr,
+			      "%4x cc2 BB1:%1d", SCH_NO(q), q->nr);
+		DBF_DEV_EVENT(DBF_WARN, q->irq_ptr, "count:%u", retries);
+	}
 	return cc;
 }
 
@@ -728,13 +734,14 @@ static inline int qdio_outbound_q_moved(struct qdio_q *q)
 
 static int qdio_kick_outbound_q(struct qdio_q *q)
 {
+	int retries = 0, cc;
 	unsigned int busy_bit;
-	int cc;
 
 	if (!need_siga_out(q))
 		return 0;
 
 	DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w:%1d", q->nr);
+retry:
 	qperf_inc(q, siga_write);
 
 	cc = qdio_siga_output(q, &busy_bit);
@@ -743,7 +750,11 @@ static int qdio_kick_outbound_q(struct qdio_q *q)
 		break;
 	case 2:
 		if (busy_bit) {
-			DBF_ERROR("%4x cc2 REP:%1d", SCH_NO(q), q->nr);
+			while (++retries < QDIO_BUSY_BIT_RETRIES) {
+				mdelay(QDIO_BUSY_BIT_RETRY_DELAY);
+				goto retry;
+			}
+			DBF_ERROR("%4x cc2 BBC:%1d", SCH_NO(q), q->nr);
 			cc |= QDIO_ERROR_SIGA_BUSY;
 		} else
 			DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "siga-w cc2:%1d", q->nr);
@@ -753,6 +764,10 @@ static int qdio_kick_outbound_q(struct qdio_q *q)
 		DBF_ERROR("%4x SIGA-W:%1d", SCH_NO(q), cc);
 		break;
 	}
+	if (retries) {
+		DBF_ERROR("%4x cc2 BB2:%1d", SCH_NO(q), q->nr);
+		DBF_ERROR("count:%u", retries);
+	}
 	return cc;
 }
 
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 68be6e15712..2a1d4dfaf85 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -9,7 +9,7 @@
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/kernel_stat.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/debug.h>
 #include <asm/qdio.h>
 #include <asm/airq.h>
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index f8134a44cef..b77ae519d79 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -41,7 +41,7 @@
 #include <linux/mutex.h>
 #include <asm/reset.h>
 #include <asm/airq.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/system.h>
 #include <asm/isc.h>
 #include <linux/hrtimer.h>
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 8e65447f76b..88ad33ed5d3 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -36,7 +36,7 @@
 #include <linux/seq_file.h>
 #include <linux/compat.h>
 #include <linux/slab.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/uaccess.h>
 #include <linux/hw_random.h>
 
diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c
index 2176d00b395..da171b5f399 100644
--- a/drivers/s390/crypto/zcrypt_cex2a.c
+++ b/drivers/s390/crypto/zcrypt_cex2a.c
@@ -30,7 +30,7 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/err.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/uaccess.h>
 
 #include "ap_bus.h"
diff --git a/drivers/s390/crypto/zcrypt_mono.c b/drivers/s390/crypto/zcrypt_mono.c
index 44253fdd413..eb313c3fb2d 100644
--- a/drivers/s390/crypto/zcrypt_mono.c
+++ b/drivers/s390/crypto/zcrypt_mono.c
@@ -32,7 +32,7 @@
 #include <linux/fs.h>
 #include <linux/proc_fs.h>
 #include <linux/compat.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/uaccess.h>
 
 #include "ap_bus.h"
diff --git a/drivers/s390/crypto/zcrypt_pcica.c b/drivers/s390/crypto/zcrypt_pcica.c
index 1afb69c75fe..d84816f144d 100644
--- a/drivers/s390/crypto/zcrypt_pcica.c
+++ b/drivers/s390/crypto/zcrypt_pcica.c
@@ -30,7 +30,7 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/err.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/uaccess.h>
 
 #include "ap_bus.h"
diff --git a/drivers/s390/crypto/zcrypt_pcicc.c b/drivers/s390/crypto/zcrypt_pcicc.c
index aa4c050a569..bdbdbe19299 100644
--- a/drivers/s390/crypto/zcrypt_pcicc.c
+++ b/drivers/s390/crypto/zcrypt_pcicc.c
@@ -30,7 +30,7 @@
 #include <linux/init.h>
 #include <linux/gfp.h>
 #include <linux/err.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/uaccess.h>
 
 #include "ap_bus.h"
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index 4f85eb725f4..dd4737808e0 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -31,7 +31,7 @@
 #include <linux/err.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/uaccess.h>
 
 #include "ap_bus.h"
diff --git a/drivers/s390/net/fsm.h b/drivers/s390/net/fsm.h
index 1e8b235d95b..a4510cf5903 100644
--- a/drivers/s390/net/fsm.h
+++ b/drivers/s390/net/fsm.h
@@ -8,7 +8,7 @@
 #include <linux/slab.h>
 #include <linux/sched.h>
 #include <linux/string.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 
 /**
  * Define this to get debugging messages.
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 2a4991d6d4d..7cac873c738 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -13,7 +13,7 @@
 #include <linux/slab.h>
 #include <scsi/fc/fc_fcp.h>
 #include <scsi/scsi_eh.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include "zfcp_ext.h"
 #include "zfcp_dbf.h"
 #include "zfcp_fc.h"