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

Pull s390 updates from Martin Schwidefsky:
 "The main bulk of the s390 patches for the 4.10 merge window:

   - Add support for the contiguous memory allocator.

   - The recovery for I/O errors in the dasd device driver is improved,
     the driver will now remove channel paths that are not working
     properly.

   - Additional fields are added to /proc/sysinfo, the extended
     partition name and the partition UUID.

   - New naming for PCI devices with system defined UIDs.

   - The last few remaining alloc_bootmem calls are converted to
     memblock.

   - The thread_info structure is stripped down and moved to the
     task_struct. The only field left in thread_info is the flags field.

   - Rework of the arch topology code to fix a fake numa issue.

   - Refactoring of the atomic primitives and add a new preempt_count
     implementation.

   - Clocksource steering for the STP sync check offsets.

   - The s390 specific headers are changed to make them usable with
     CLANG.

   - Bug fixes and cleanup"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (70 commits)
  s390/cpumf: Use configuration level indication for sampling data
  s390: provide memmove implementation
  s390: cleanup arch/s390/kernel Makefile
  s390: fix initrd corruptions with gcov/kcov instrumented kernels
  s390: exclude early C code from gcov profiling
  s390/dasd: channel path aware error recovery
  s390/dasd: extend dasd path handling
  s390: remove unused labels from entry.S
  s390/vmlogrdr: fix IUCV buffer allocation
  s390/crypto: unlock on error in prng_tdes_read()
  s390/sysinfo: show partition extended name and UUID if available
  s390/numa: pin all possible cpus to nodes early
  s390/numa: establish cpu to node mapping early
  s390/topology: use cpu_topology array instead of per cpu variable
  s390/smp: initialize cpu_present_mask in setup_arch
  s390/topology: always use s390 specific sched_domain_topology_level
  s390/smp: use smp_get_base_cpu() helper function
  s390/numa: always use logical cpu and core ids
  s390: Remove VLAIS in ptff() and clear_table()
  s390: fix machine check panic stack switch
  ...

Author: torvalds

MAINTAINERS

@@ -10557,7 +10557,7 @@ F:	arch/s390/pci/
 F:	drivers/pci/hotplug/s390_pci_hpc.c
 
 S390 ZCRYPT DRIVER
-M:	Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
+M:	Harald Freudenberger <freude@de.ibm.com>
 L:	[email protected]
 W:	http://www.ibm.com/developerworks/linux/linux390/
 S:	Supported

arch/s390/Kconfig

@@ -136,6 +136,7 @@ config S390
 	select HAVE_CMPXCHG_LOCAL
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DMA_API_DEBUG
+	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
@@ -169,6 +170,7 @@ config S390
 	select OLD_SIGSUSPEND3
 	select SPARSE_IRQ
 	select SYSCTL_EXCEPTION_TRACE
+	select THREAD_INFO_IN_TASK
 	select TTY
 	select VIRT_CPU_ACCOUNTING
 	select ARCH_HAS_SCALED_CPUTIME

arch/s390/boot/compressed/head.S

@@ -46,7 +46,7 @@ mover_end:
 
 	.align	8
 .Lstack:
-	.quad	0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
+	.quad	0x8000 + (1<<(PAGE_SHIFT+THREAD_SIZE_ORDER))
 .Loffset:
 	.quad	0x11000
 .Lmvsize:

arch/s390/configs/default_defconfig

@@ -66,6 +66,8 @@ CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_CLEANCACHE=y
 CONFIG_FRONTSWAP=y
 CONFIG_CMA=y
+CONFIG_CMA_DEBUG=y
+CONFIG_CMA_DEBUGFS=y
 CONFIG_MEM_SOFT_DIRTY=y
 CONFIG_ZPOOL=m
 CONFIG_ZBUD=m
@@ -366,6 +368,8 @@ CONFIG_BPF_JIT=y
 CONFIG_NET_PKTGEN=m
 CONFIG_NET_TCPPROBE=m
 CONFIG_DEVTMPFS=y
+CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=0
 CONFIG_CONNECTOR=y
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
@@ -438,7 +442,6 @@ CONFIG_TUN=m
 CONFIG_VETH=m
 CONFIG_VIRTIO_NET=m
 CONFIG_NLMON=m
-CONFIG_VHOST_NET=m
 # CONFIG_NET_VENDOR_ARC is not set
 # CONFIG_NET_VENDOR_CHELSIO is not set
 # CONFIG_NET_VENDOR_INTEL is not set
@@ -693,3 +696,4 @@ CONFIG_CMM=m
 CONFIG_APPLDATA_BASE=y
 CONFIG_KVM=m
 CONFIG_KVM_S390_UCONTROL=y
+CONFIG_VHOST_NET=m

arch/s390/configs/gcov_defconfig

@@ -362,6 +362,8 @@ CONFIG_BPF_JIT=y
 CONFIG_NET_PKTGEN=m
 CONFIG_NET_TCPPROBE=m
 CONFIG_DEVTMPFS=y
+CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=0
 CONFIG_CONNECTOR=y
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
@@ -434,7 +436,6 @@ CONFIG_TUN=m
 CONFIG_VETH=m
 CONFIG_VIRTIO_NET=m
 CONFIG_NLMON=m
-CONFIG_VHOST_NET=m
 # CONFIG_NET_VENDOR_ARC is not set
 # CONFIG_NET_VENDOR_CHELSIO is not set
 # CONFIG_NET_VENDOR_INTEL is not set
@@ -633,3 +634,4 @@ CONFIG_CMM=m
 CONFIG_APPLDATA_BASE=y
 CONFIG_KVM=m
 CONFIG_KVM_S390_UCONTROL=y
+CONFIG_VHOST_NET=m

arch/s390/configs/performance_defconfig

@@ -362,6 +362,8 @@ CONFIG_BPF_JIT=y
 CONFIG_NET_PKTGEN=m
 CONFIG_NET_TCPPROBE=m
 CONFIG_DEVTMPFS=y
+CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=0
 CONFIG_CONNECTOR=y
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
@@ -434,7 +436,6 @@ CONFIG_TUN=m
 CONFIG_VETH=m
 CONFIG_VIRTIO_NET=m
 CONFIG_NLMON=m
-CONFIG_VHOST_NET=m
 # CONFIG_NET_VENDOR_ARC is not set
 # CONFIG_NET_VENDOR_CHELSIO is not set
 # CONFIG_NET_VENDOR_INTEL is not set
@@ -632,3 +633,4 @@ CONFIG_CMM=m
 CONFIG_APPLDATA_BASE=y
 CONFIG_KVM=m
 CONFIG_KVM_S390_UCONTROL=y
+CONFIG_VHOST_NET=m

arch/s390/crypto/prng.c

@@ -507,8 +507,10 @@ static ssize_t prng_tdes_read(struct file *file, char __user *ubuf,
 		prng_data->prngws.byte_counter += n;
 		prng_data->prngws.reseed_counter += n;
 
-		if (copy_to_user(ubuf, prng_data->buf, chunk))
-			return -EFAULT;
+		if (copy_to_user(ubuf, prng_data->buf, chunk)) {
+			ret = -EFAULT;
+			break;
+		}
 
 		nbytes -= chunk;
 		ret += chunk;

arch/s390/hypfs/inode.c

@@ -3,6 +3,7 @@
  *
  *    Copyright IBM Corp. 2006, 2008
  *    Author(s): Michael Holzheu <[email protected]>
+ *    License: GPL
  */
 
 #define KMSG_COMPONENT "hypfs"
@@ -18,7 +19,8 @@
 #include <linux/time.h>
 #include <linux/parser.h>
 #include <linux/sysfs.h>
-#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kobject.h>
 #include <linux/seq_file.h>
 #include <linux/mount.h>
 #include <linux/uio.h>
@@ -443,7 +445,6 @@ static struct file_system_type hypfs_type = {
 	.mount		= hypfs_mount,
 	.kill_sb	= hypfs_kill_super
 };
-MODULE_ALIAS_FS("s390_hypfs");
 
 static const struct super_operations hypfs_s_ops = {
 	.statfs		= simple_statfs,
@@ -497,21 +498,4 @@ static int __init hypfs_init(void)
 	pr_err("Initialization of hypfs failed with rc=%i\n", rc);
 	return rc;
 }
-
-static void __exit hypfs_exit(void)
-{
-	unregister_filesystem(&hypfs_type);
-	sysfs_remove_mount_point(hypervisor_kobj, "s390");
-	hypfs_diag0c_exit();
-	hypfs_sprp_exit();
-	hypfs_vm_exit();
-	hypfs_diag_exit();
-	hypfs_dbfs_exit();
-}
-
-module_init(hypfs_init)
-module_exit(hypfs_exit)
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Michael Holzheu <[email protected]>");
-MODULE_DESCRIPTION("s390 Hypervisor Filesystem");
+device_initcall(hypfs_init)

arch/s390/include/asm/Kbuild

@@ -1,6 +1,6 @@
-
-
+generic-y += asm-offsets.h
 generic-y += clkdev.h
+generic-y += dma-contiguous.h
 generic-y += export.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h