32 files changed, 114 insertions, 48 deletions

diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c
index 4188cbe63a54..e43fe7537031 100644
--- a/arch/s390/appldata/appldata_mem.c
+++ b/arch/s390/appldata/appldata_mem.c
@@ -11,7 +11,6 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/kernel_stat.h>
 #include <linux/pagemap.h>
diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c
index 4ce7fa95880f..9a9586f4103f 100644
--- a/arch/s390/appldata/appldata_net_sum.c
+++ b/arch/s390/appldata/appldata_net_sum.c
@@ -12,7 +12,6 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/kernel_stat.h>
 #include <linux/netdevice.h>
diff --git a/arch/s390/boot/compressed/misc.c b/arch/s390/boot/compressed/misc.c
index a97d69525829..14e0479d3888 100644
--- a/arch/s390/boot/compressed/misc.c
+++ b/arch/s390/boot/compressed/misc.c
@@ -24,8 +24,8 @@
 /* Symbols defined by linker scripts */
 extern char input_data[];
 extern int input_len;
-extern int _text;
-extern int _end;
+extern char _text, _end;
+extern char _bss, _ebss;
 
 static void error(char *m);
 
@@ -129,12 +129,12 @@ unsigned long decompress_kernel(void)
         unsigned long output_addr;
         unsigned char *output;
 
+        check_ipl_parmblock((void *) 0, (unsigned long) output + SZ__bss_start);
+        memset(&_bss, 0, &_ebss - &_bss);
         free_mem_ptr = (unsigned long)&_end;
         free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
         output = (unsigned char *) ((free_mem_end_ptr + 4095UL) & -4096UL);
 
-        check_ipl_parmblock((void *) 0, (unsigned long) output + SZ__bss_start);
-
 #ifdef CONFIG_BLK_DEV_INITRD
         /*
          * Move the initrd right behind the end of the decompressed
diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index a3209906739e..aa819dac2360 100644
--- a/arch/s390/crypto/prng.c
+++ b/arch/s390/crypto/prng.c
@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/random.h>
+#include <linux/slab.h>
 #include <asm/debug.h>
 #include <asm/uaccess.h>
 
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 7ae71cc56973..bcd6884985ad 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.33-rc2
-# Mon Jan  4 09:03:07 2010
+# Linux kernel version: 2.6.34-rc3
+# Fri Apr  9 09:57:10 2010
 #
 CONFIG_SCHED_MC=y
 CONFIG_MMU=y
@@ -17,6 +17,7 @@ CONFIG_GENERIC_TIME=y
 CONFIG_GENERIC_TIME_VSYSCALL=y
 CONFIG_GENERIC_CLOCKEVENTS=y
 CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
 CONFIG_NO_IOMEM=y
 CONFIG_NO_DMA=y
 CONFIG_GENERIC_LOCKBREAK=y
@@ -62,15 +63,11 @@ CONFIG_TREE_RCU=y
 # CONFIG_RCU_TRACE is not set
 CONFIG_RCU_FANOUT=64
 # CONFIG_RCU_FANOUT_EXACT is not set
+# CONFIG_RCU_FAST_NO_HZ is not set
 # CONFIG_TREE_RCU_TRACE is not set
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=17
-CONFIG_GROUP_SCHED=y
-CONFIG_FAIR_GROUP_SCHED=y
-# CONFIG_RT_GROUP_SCHED is not set
-CONFIG_USER_SCHED=y
-# CONFIG_CGROUP_SCHED is not set
 CONFIG_CGROUPS=y
 # CONFIG_CGROUP_DEBUG is not set
 CONFIG_CGROUP_NS=y
@@ -79,6 +76,7 @@ CONFIG_CGROUP_NS=y
 # CONFIG_CPUSETS is not set
 # CONFIG_CGROUP_CPUACCT is not set
 # CONFIG_RESOURCE_COUNTERS is not set
+# CONFIG_CGROUP_SCHED is not set
 CONFIG_SYSFS_DEPRECATED=y
 CONFIG_SYSFS_DEPRECATED_V2=y
 # CONFIG_RELAY is not set
@@ -93,6 +91,7 @@ CONFIG_INITRAMFS_SOURCE=""
 CONFIG_RD_GZIP=y
 CONFIG_RD_BZIP2=y
 CONFIG_RD_LZMA=y
+CONFIG_RD_LZO=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_SYSCTL=y
 CONFIG_ANON_INODES=y
@@ -126,6 +125,7 @@ CONFIG_SLAB=y
 # CONFIG_SLUB is not set
 # CONFIG_SLOB is not set
 # CONFIG_PROFILING is not set
+CONFIG_TRACEPOINTS=y
 CONFIG_HAVE_OPROFILE=y
 CONFIG_KPROBES=y
 CONFIG_HAVE_SYSCALL_WRAPPERS=y
@@ -134,6 +134,7 @@ CONFIG_HAVE_KPROBES=y
 CONFIG_HAVE_KRETPROBES=y
 CONFIG_HAVE_ARCH_TRACEHOOK=y
 CONFIG_USE_GENERIC_SMP_HELPERS=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
 CONFIG_HAVE_DEFAULT_NO_SPIN_MUTEXES=y
 
 #
@@ -246,6 +247,7 @@ CONFIG_64BIT=y
 CONFIG_SMP=y
 CONFIG_NR_CPUS=32
 CONFIG_HOTPLUG_CPU=y
+# CONFIG_SCHED_BOOK is not set
 CONFIG_COMPAT=y
 CONFIG_SYSVIPC_COMPAT=y
 CONFIG_AUDIT_ARCH=y
@@ -345,13 +347,13 @@ CONFIG_PM_SLEEP=y
 CONFIG_HIBERNATION=y
 CONFIG_PM_STD_PARTITION=""
 # CONFIG_PM_RUNTIME is not set
+CONFIG_PM_OPS=y
 CONFIG_NET=y
 
 #
 # Networking options
 #
 CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
 CONFIG_UNIX=y
 CONFIG_XFRM=y
 # CONFIG_XFRM_USER is not set
@@ -529,6 +531,7 @@ CONFIG_NET_SCH_FIFO=y
 #
 # CONFIG_NET_PKTGEN is not set
 # CONFIG_NET_TCPPROBE is not set
+# CONFIG_NET_DROP_MONITOR is not set
 CONFIG_CAN=m
 CONFIG_CAN_RAW=m
 CONFIG_CAN_BCM=m
@@ -605,6 +608,7 @@ CONFIG_MISC_DEVICES=y
 #
 # SCSI device support
 #
+CONFIG_SCSI_MOD=y
 # CONFIG_RAID_ATTRS is not set
 CONFIG_SCSI=y
 # CONFIG_SCSI_DMA is not set
@@ -863,6 +867,7 @@ CONFIG_MISC_FILESYSTEMS=y
 # CONFIG_BEFS_FS is not set
 # CONFIG_BFS_FS is not set
 # CONFIG_EFS_FS is not set
+# CONFIG_LOGFS is not set
 # CONFIG_CRAMFS is not set
 # CONFIG_SQUASHFS is not set
 # CONFIG_VXFS_FS is not set
@@ -891,6 +896,7 @@ CONFIG_SUNRPC=y
 # CONFIG_RPCSEC_GSS_KRB5 is not set
 # CONFIG_RPCSEC_GSS_SPKM3 is not set
 # CONFIG_SMB_FS is not set
+# CONFIG_CEPH_FS is not set
 # CONFIG_CIFS is not set
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
@@ -952,6 +958,7 @@ CONFIG_DEBUG_MUTEXES=y
 # CONFIG_LOCK_STAT is not set
 CONFIG_DEBUG_SPINLOCK_SLEEP=y
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+CONFIG_STACKTRACE=y
 # CONFIG_DEBUG_KOBJECT is not set
 CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
@@ -973,12 +980,17 @@ CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
 # CONFIG_LATENCYTOP is not set
 CONFIG_SYSCTL_SYSCALL_CHECK=y
 # CONFIG_DEBUG_PAGEALLOC is not set
+CONFIG_NOP_TRACER=y
 CONFIG_HAVE_FUNCTION_TRACER=y
 CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
 CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
 CONFIG_HAVE_DYNAMIC_FTRACE=y
 CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
 CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_RING_BUFFER=y
+CONFIG_EVENT_TRACING=y
+CONFIG_CONTEXT_SWITCH_TRACER=y
+CONFIG_TRACING=y
 CONFIG_TRACING_SUPPORT=y
 CONFIG_FTRACE=y
 # CONFIG_FUNCTION_TRACER is not set
@@ -995,10 +1007,15 @@ CONFIG_BRANCH_PROFILE_NONE=y
 # CONFIG_KMEMTRACE is not set
 # CONFIG_WORKQUEUE_TRACER is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
+CONFIG_KPROBE_EVENT=y
+# CONFIG_RING_BUFFER_BENCHMARK is not set
 # CONFIG_DYNAMIC_DEBUG is not set
 CONFIG_SAMPLES=y
+# CONFIG_SAMPLE_TRACEPOINTS is not set
+# CONFIG_SAMPLE_TRACE_EVENTS is not set
 # CONFIG_SAMPLE_KOBJECT is not set
 # CONFIG_SAMPLE_KPROBES is not set
+# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
 
 #
 # Security options
@@ -1032,6 +1049,7 @@ CONFIG_CRYPTO_MANAGER=y
 CONFIG_CRYPTO_MANAGER2=y
 CONFIG_CRYPTO_GF128MUL=m
 # CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_PCRYPT is not set
 CONFIG_CRYPTO_WORKQUEUE=y
 # CONFIG_CRYPTO_CRYPTD is not set
 CONFIG_CRYPTO_AUTHENC=m
@@ -1119,7 +1137,7 @@ CONFIG_CRYPTO_SHA512_S390=m
 # CONFIG_CRYPTO_DES_S390 is not set
 # CONFIG_CRYPTO_AES_S390 is not set
 CONFIG_S390_PRNG=m
-# CONFIG_BINARY_PRINTF is not set
+CONFIG_BINARY_PRINTF=y
 
 #
 # Library routines
@@ -1136,14 +1154,16 @@ CONFIG_LIBCRC32C=m
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZLIB_DEFLATE=m
 CONFIG_LZO_COMPRESS=m
-CONFIG_LZO_DECOMPRESS=m
+CONFIG_LZO_DECOMPRESS=y
 CONFIG_DECOMPRESS_GZIP=y
 CONFIG_DECOMPRESS_BZIP2=y
 CONFIG_DECOMPRESS_LZMA=y
+CONFIG_DECOMPRESS_LZO=y
 CONFIG_NLATTR=y
 CONFIG_HAVE_KVM=y
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM=m
+# CONFIG_VHOST_NET is not set
 CONFIG_VIRTIO=y
 CONFIG_VIRTIO_RING=y
 CONFIG_VIRTIO_BALLOON=m
diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
index 87cf523192e9..5b1acdba6495 100644
--- a/arch/s390/hypfs/hypfs_diag.c
+++ b/arch/s390/hypfs/hypfs_diag.c
@@ -12,7 +12,6 @@
 
 #include <linux/types.h>
 #include <linux/errno.h>
-#include <linux/gfp.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/vmalloc.h>
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index cd128b07beda..c53f8ac825ca 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -14,8 +14,8 @@
 #include <linux/fs.h>
 #include <linux/namei.h>
 #include <linux/vfs.h>
+#include <linux/slab.h>
 #include <linux/pagemap.h>
-#include <linux/gfp.h>
 #include <linux/time.h>
 #include <linux/parser.h>
 #include <linux/sysfs.h>
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 9b5b9189c15e..89a504c3f12e 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -105,7 +105,7 @@ extern char empty_zero_page[PAGE_SIZE];
 #ifndef __ASSEMBLY__
 /*
  * The vmalloc area will always be on the topmost area of the kernel
- * mapping. We reserve 96MB (31bit) / 1GB (64bit) for vmalloc,
+ * mapping. We reserve 96MB (31bit) / 128GB (64bit) for vmalloc,
  * which should be enough for any sane case.
  * By putting vmalloc at the top, we maximise the gap between physical
  * memory and vmalloc to catch misplaced memory accesses. As a side
@@ -120,8 +120,8 @@ extern unsigned long VMALLOC_START;
 #define VMALLOC_END     0x7e000000UL
 #define VMEM_MAP_END    0x80000000UL
 #else /* __s390x__ */
-#define VMALLOC_SIZE    (1UL << 30)
-#define VMALLOC_END     0x3e040000000UL
+#define VMALLOC_SIZE    (128UL << 30)
+#define VMALLOC_END     0x3e000000000UL
 #define VMEM_MAP_END    0x40000000000UL
 #endif /* __s390x__ */
 
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 67ee6c3c6bb3..1741c1556a4e 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -110,6 +110,7 @@ extern void pfault_fini(void);
 #endif /* CONFIG_PFAULT */
 
 extern void cmma_init(void);
+extern int memcpy_real(void *, void *, size_t);
 
 #define finish_arch_switch(prev) do {                                        \
         set_fs(current->thread.mm_segment);                                  \
@@ -218,8 +219,8 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
                         "       l       %0,%2\n"
                         "0:     nr      %0,%5\n"
                         "       lr      %1,%0\n"
-                        "       or      %0,%2\n"
-                        "       or      %1,%3\n"
+                        "       or      %0,%3\n"
+                        "       or      %1,%4\n"
                         "       cs      %0,%1,%2\n"
                         "       jnl     1f\n"
                         "       xr      %1,%0\n"
@@ -239,8 +240,8 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
                         "       l       %0,%2\n"
                         "0:     nr      %0,%5\n"
                         "       lr      %1,%0\n"
-                        "       or      %0,%2\n"
-                        "       or      %1,%3\n"
+                        "       or      %0,%3\n"
+                        "       or      %1,%4\n"
                         "       cs      %0,%1,%2\n"
                         "       jnl     1f\n"
                         "       xr      %1,%0\n"
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 11c3aba664ea..73b624ed9cd8 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -29,7 +29,6 @@
 #include <linux/sem.h>
 #include <linux/msg.h>
 #include <linux/shm.h>
-#include <linux/slab.h>
 #include <linux/uio.h>
 #include <linux/quota.h>
 #include <linux/module.h>
@@ -52,6 +51,7 @@
 #include <linux/ptrace.h>
 #include <linux/fadvise.h>
 #include <linux/ipc.h>
+#include <linux/slab.h>
 
 #include <asm/types.h>
 #include <asm/uaccess.h>
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 31d618a443af..2d92c2cf92d7 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -82,7 +82,8 @@ asm(
         "       lm      6,15,24(15)\n"
 #endif
         "       br      14\n"
-        "       .size   savesys_ipl_nss, .-savesys_ipl_nss\n");
+        "       .size   savesys_ipl_nss, .-savesys_ipl_nss\n"
+        "       .previous\n");
 
 static __initdata char upper_command_line[COMMAND_LINE_SIZE];
 
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 4348f9bc5393..6af7045280a8 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -964,7 +964,7 @@ cleanup_critical:
         clc     4(4,%r12),BASED(cleanup_table_io_work_loop)
         bl      BASED(0f)
         clc     4(4,%r12),BASED(cleanup_table_io_work_loop+4)
-        bl      BASED(cleanup_io_return)
+        bl      BASED(cleanup_io_work_loop)
 0:
         br      %r14
 
@@ -1039,6 +1039,12 @@ cleanup_sysc_leave_insn:
 
 cleanup_io_return:
         mvc     __LC_RETURN_PSW(4),0(%r12)
+        mvc     __LC_RETURN_PSW+4(4),BASED(cleanup_table_io_return)
+        la      %r12,__LC_RETURN_PSW
+        br      %r14
+
+cleanup_io_work_loop:
+        mvc     __LC_RETURN_PSW(4),0(%r12)
         mvc     __LC_RETURN_PSW+4(4),BASED(cleanup_table_io_work_loop)
         la      %r12,__LC_RETURN_PSW
         br      %r14
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 29fd0f1e6ec4..52106d53271c 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -946,7 +946,7 @@ cleanup_critical:
         clc     8(8,%r12),BASED(cleanup_table_io_work_loop)
         jl      0f
         clc     8(8,%r12),BASED(cleanup_table_io_work_loop+8)
-        jl      cleanup_io_return
+        jl      cleanup_io_work_loop
 0:
         br      %r14
 
@@ -1021,6 +1021,12 @@ cleanup_sysc_leave_insn:
 
 cleanup_io_return:
         mvc     __LC_RETURN_PSW(8),0(%r12)
+        mvc     __LC_RETURN_PSW+8(8),BASED(cleanup_table_io_return)
+        la      %r12,__LC_RETURN_PSW
+        br      %r14
+
+cleanup_io_work_loop:
+        mvc     __LC_RETURN_PSW(8),0(%r12)
         mvc     __LC_RETURN_PSW+8(8),BASED(cleanup_table_io_work_loop)
         la      %r12,__LC_RETURN_PSW
         br      %r14
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index ca4a62bd862f..9d1f76702d47 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -517,7 +517,10 @@ startup:
         lhi     %r1,2                   # mode 2 = esame (dump)
         sigp    %r1,%r0,0x12            # switch to esame mode
         sam64                           # switch to 64 bit mode
+        larl    %r13,4f
+        lmh     %r0,%r15,0(%r13)        # clear high-order half
         jg      startup_continue
+4:      .fill   16,4,0x0
 #else
         mvi     __LC_AR_MODE_ID,0       # set ESA flag (mode 0)
         l       %r13,4f-.LPG0(%r13)
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index 39580e768658..1f70970de0aa 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -21,7 +21,6 @@ startup_continue:
         larl    %r1,sched_clock_base_cc
         mvc     0(8,%r1),__LC_LAST_UPDATE_CLOCK
         larl    %r13,.LPG1              # get base
-        lmh     %r0,%r15,.Lzero64-.LPG1(%r13)   # clear high-order half
         lctlg   %c0,%c15,.Lctl-.LPG1(%r13)      # load control registers
         lg      %r12,.Lparmaddr-.LPG1(%r13)     # pointer to parameter area
                                         # move IPL device to lowcore
@@ -67,7 +66,6 @@ startup_continue:
 .L4malign:.quad 0xffffffffffc00000
 .Lscan2g:.quad  0x80000000 + 0x20000 - 8        # 2GB + 128K - 8
 .Lnop:  .long   0x07000700
-.Lzero64:.fill  16,4,0x0
 .Lparmaddr:
         .quad   PARMAREA
         .align  64
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 7eedbbcb54aa..72c8b0d070c8 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -15,6 +15,7 @@
 #include <linux/reboot.h>
 #include <linux/ctype.h>
 #include <linux/fs.h>
+#include <linux/gfp.h>
 #include <asm/ipl.h>
 #include <asm/smp.h>
 #include <asm/setup.h>
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index 86783efa24ee..3d34eef5a2c3 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -29,6 +29,7 @@
 #include <asm/cacheflush.h>
 #include <asm/sections.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 
 DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
 DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 00b6d1d292f2..1039fdea15b5 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -16,9 +16,9 @@
 #include <linux/fs.h>
 #include <linux/smp.h>
 #include <linux/stddef.h>
+#include <linux/slab.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/user.h>
 #include <linux/interrupt.h>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 77a63ae419f0..91625f759ccd 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -25,7 +25,6 @@
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/tty.h>
 #include <linux/ioport.h>
@@ -401,7 +400,7 @@ setup_lowcore(void)
          * Setup lowcore for boot cpu
          */
         BUILD_BUG_ON(sizeof(struct _lowcore) != LC_PAGES * 4096);
-        lc = __alloc_bootmem(LC_PAGES * PAGE_SIZE, LC_PAGES * PAGE_SIZE, 0);
+        lc = __alloc_bootmem_low(LC_PAGES * PAGE_SIZE, LC_PAGES * PAGE_SIZE, 0);
         lc->restart_psw.mask = PSW_BASE_BITS | PSW_DEFAULT_KEY;
         lc->restart_psw.addr =
                 PSW_ADDR_AMODE | (unsigned long) restart_int_handler;
@@ -433,7 +432,7 @@ setup_lowcore(void)
 #ifndef CONFIG_64BIT
         if (MACHINE_HAS_IEEE) {
                 lc->extended_save_area_addr = (__u32)
-                        __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0);
+                        __alloc_bootmem_low(PAGE_SIZE, PAGE_SIZE, 0);
                 /* enable extended save area */
                 __ctl_set_bit(14, 29);
         }
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 29f65bce55e1..e4d98de83dd8 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -36,6 +36,7 @@
 #include <linux/cpu.h>
 #include <linux/timex.h>
 #include <linux/bootmem.h>
+#include <linux/slab.h>
 #include <asm/asm-offsets.h>
 #include <asm/ipl.h>
 #include <asm/setup.h>
@@ -292,9 +293,9 @@ static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu)
         zfcpdump_save_areas[cpu] = kmalloc(sizeof(struct save_area), GFP_KERNEL);
         while (raw_sigp(phy_cpu, sigp_stop_and_store_status) == sigp_busy)
                 cpu_relax();
-        memcpy(zfcpdump_save_areas[cpu],
-               (void *)(unsigned long) store_prefix() + SAVE_AREA_BASE,
-               sizeof(struct save_area));
+        memcpy_real(zfcpdump_save_areas[cpu],
+                    (void *)(unsigned long) store_prefix() + SAVE_AREA_BASE,
+                    sizeof(struct save_area));
 }
 
 struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index b5e75e1061c8..a0ffc7717ed6 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -11,6 +11,7 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <asm/ebcdic.h>
 #include <asm/sysinfo.h>
 #include <asm/cpcmd.h>
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index aa2483e460f3..fba6dec156bf 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -36,6 +36,7 @@
 #include <linux/notifier.h>
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
+#include <linux/gfp.h>
 #include <asm/uaccess.h>
 #include <asm/delay.h>
 #include <asm/s390_ext.h>
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 14ef6f05e432..247b4c2d1e51 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -165,10 +165,11 @@ static void tl_to_cores(struct tl_info *info)
                 default:
                         clear_cores();
                         machine_has_topology = 0;
-                        return;
+                        goto out;
                 }
                 tle = next_tle(tle);
         }
+out:
         spin_unlock_irq(&topology_lock);
 }
 
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 834774d8d5f3..35c21bf910c5 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -14,6 +14,7 @@
 #include <linux/kvm_host.h>
 #include <linux/hrtimer.h>
 #include <linux/signal.h>
+#include <linux/slab.h>
 #include <asm/asm-offsets.h>
 #include <asm/uaccess.h>
 #include "kvm-s390.h"
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 28c55677eb39..44205507717c 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -12,6 +12,7 @@
  */
 
 #include <linux/kvm.h>
+#include <linux/gfp.h>
 #include <linux/errno.h>
 #include <asm/current.h>
 #include <asm/debug.h>
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 241a48459b66..eff3c5989b46 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -14,6 +14,7 @@
 
 #include <linux/kvm.h>
 #include <linux/kvm_host.h>
+#include <linux/slab.h>
 #include "gaccess.h"
 #include "kvm-s390.h"
 
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index f16bd04e39e9..f87b34731e1d 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -12,6 +12,7 @@
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/gfp.h>
 #include <linux/sched.h>
 #include <linux/sysctl.h>
 #include <linux/ctype.h>
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index d5865e4024ce..acc91c75bc94 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -26,6 +26,7 @@
 #include <linux/pfn.h>
 #include <linux/poison.h>
 #include <linux/initrd.h>
+#include <linux/gfp.h>
 #include <asm/processor.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c
index 81756271dc44..a8c2af8c650f 100644
--- a/arch/s390/mm/maccess.c
+++ b/arch/s390/mm/maccess.c
@@ -59,3 +59,29 @@ long probe_kernel_write(void *dst, void *src, size_t size)
         }
         return copied < 0 ? -EFAULT : 0;
 }
+
+int memcpy_real(void *dest, void *src, size_t count)
+{
+        register unsigned long _dest asm("2") = (unsigned long) dest;
+        register unsigned long _len1 asm("3") = (unsigned long) count;
+        register unsigned long _src  asm("4") = (unsigned long) src;
+        register unsigned long _len2 asm("5") = (unsigned long) count;
+        unsigned long flags;
+        int rc = -EFAULT;
+
+        if (!count)
+                return 0;
+        flags = __raw_local_irq_stnsm(0xf8UL);
+        asm volatile (
+                "0:     mvcle   %1,%2,0x0\n"
+                "1:     jo      0b\n"
+                "       lhi     %0,0x0\n"
+                "2:\n"
+                EX_TABLE(1b,2b)
+                : "+d" (rc), "+d" (_dest), "+d" (_src), "+d" (_len1),
+                  "+d" (_len2), "=m" (*((long *) dest))
+                : "m" (*((long *) src))
+                : "cc", "memory");
+        __raw_local_irq_ssm(flags);
+        return rc;
+}
diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index 098923ae458f..a90d45e9dfb0 100644
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -10,6 +10,7 @@
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/mm.h>
+#include <linux/gfp.h>
 #include <linux/init.h>
 
 #define ESSA_SET_STABLE         1
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index ad621e06ada3..8d999249d357 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -6,11 +6,11 @@
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
+#include <linux/gfp.h>
 #include <linux/mm.h>
 #include <linux/swap.h>
 #include <linux/smp.h>
 #include <linux/highmem.h>
-#include <linux/slab.h>
 #include <linux/pagemap.h>
 #include <linux/spinlock.h>
 #include <linux/module.h>
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 300ab012b0fd..90165e7ca04e 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/list.h>
 #include <linux/hugetlb.h>
+#include <linux/slab.h>
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
 #include <asm/setup.h>
@@ -70,12 +71,8 @@ static pte_t __ref *vmem_pte_alloc(void)
                 pte = alloc_bootmem(PTRS_PER_PTE * sizeof(pte_t));
         if (!pte)
                 return NULL;
-        if (MACHINE_HAS_HPAGE)
-                clear_table((unsigned long *) pte, _PAGE_TYPE_EMPTY | _PAGE_CO,
-                            PTRS_PER_PTE * sizeof(pte_t));
-        else
-                clear_table((unsigned long *) pte, _PAGE_TYPE_EMPTY,
-                            PTRS_PER_PTE * sizeof(pte_t));
+        clear_table((unsigned long *) pte, _PAGE_TYPE_EMPTY,
+                    PTRS_PER_PTE * sizeof(pte_t));
         return pte;
 }
 
@@ -116,8 +113,7 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro)
                 if (MACHINE_HAS_HPAGE && !(address & ~HPAGE_MASK) &&
                     (address + HPAGE_SIZE <= start + size) &&
                     (address >= HPAGE_SIZE)) {
-                        pte_val(pte) |= _SEGMENT_ENTRY_LARGE |
-                                        _SEGMENT_ENTRY_CO;
+                        pte_val(pte) |= _SEGMENT_ENTRY_LARGE;
                         pmd_val(*pm_dir) = pte_val(pte);
                         address += HPAGE_SIZE - PAGE_SIZE;
                         continue;