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-rw-r--r--arch/s390/Kconfig7
-rw-r--r--arch/s390/defconfig3
-rw-r--r--arch/s390/hypfs/inode.c4
-rw-r--r--arch/s390/kernel/compat_linux.c45
-rw-r--r--arch/s390/kernel/compat_wrapper.S6
-rw-r--r--arch/s390/kernel/debug.c2
-rw-r--r--arch/s390/kernel/setup.c2
-rw-r--r--arch/s390/kernel/smp.c15
-rw-r--r--arch/s390/kernel/syscalls.S2
-rw-r--r--arch/s390/kernel/vmlinux.lds.S3
-rw-r--r--arch/s390/mm/Makefile2
-rw-r--r--arch/s390/mm/fault.c4
-rw-r--r--arch/s390/mm/ioremap.c58
13 files changed, 31 insertions, 122 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index eaed402ad346..eaaac3788110 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -7,6 +7,10 @@ config MMU
bool
default y
+config ZONE_DMA
+ bool
+ default y
+
config LOCKDEP_SUPPORT
bool
default y
@@ -37,6 +41,9 @@ config GENERIC_HWEIGHT
config GENERIC_TIME
def_bool y
+config NO_IOMEM
+ def_bool y
+
mainmenu "Linux Kernel Configuration"
config S390
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 7c621b8ef683..1406400bf3ea 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -179,6 +179,8 @@ CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
CONFIG_NET_KEY=y
+CONFIG_IUCV=m
+CONFIG_AFIUCV=m
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
@@ -508,7 +510,6 @@ CONFIG_NET_ETHERNET=y
#
CONFIG_LCS=m
CONFIG_CTC=m
-CONFIG_IUCV=m
# CONFIG_NETIUCV is not set
# CONFIG_SMSGIUCV is not set
# CONFIG_CLAW is not set
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index a4fda7b53640..ba5d3167df0d 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -34,7 +34,7 @@ struct hypfs_sb_info {
struct mutex lock; /* lock to protect update process */
};
-static struct file_operations hypfs_file_ops;
+static const struct file_operations hypfs_file_ops;
static struct file_system_type hypfs_type;
static struct super_operations hypfs_s_ops;
@@ -440,7 +440,7 @@ struct dentry *hypfs_create_str(struct super_block *sb, struct dentry *dir,
return dentry;
}
-static struct file_operations hypfs_file_ops = {
+static const struct file_operations hypfs_file_ops = {
.open = hypfs_open,
.release = hypfs_release,
.read = do_sync_read,
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 666bb6daa148..664c669b1856 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -398,51 +398,6 @@ int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
return err;
}
-struct sysinfo32 {
- s32 uptime;
- u32 loads[3];
- u32 totalram;
- u32 freeram;
- u32 sharedram;
- u32 bufferram;
- u32 totalswap;
- u32 freeswap;
- unsigned short procs;
- unsigned short pads;
- u32 totalhigh;
- u32 freehigh;
- unsigned int mem_unit;
- char _f[8];
-};
-
-asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
-{
- struct sysinfo s;
- int ret, err;
- mm_segment_t old_fs = get_fs ();
-
- set_fs (KERNEL_DS);
- ret = sys_sysinfo((struct sysinfo __force __user *) &s);
- set_fs (old_fs);
- err = put_user (s.uptime, &info->uptime);
- err |= __put_user (s.loads[0], &info->loads[0]);
- err |= __put_user (s.loads[1], &info->loads[1]);
- err |= __put_user (s.loads[2], &info->loads[2]);
- err |= __put_user (s.totalram, &info->totalram);
- err |= __put_user (s.freeram, &info->freeram);
- err |= __put_user (s.sharedram, &info->sharedram);
- err |= __put_user (s.bufferram, &info->bufferram);
- err |= __put_user (s.totalswap, &info->totalswap);
- err |= __put_user (s.freeswap, &info->freeswap);
- err |= __put_user (s.procs, &info->procs);
- err |= __put_user (s.totalhigh, &info->totalhigh);
- err |= __put_user (s.freehigh, &info->freehigh);
- err |= __put_user (s.mem_unit, &info->mem_unit);
- if (err)
- return -EFAULT;
- return ret;
-}
-
asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
struct compat_timespec __user *interval)
{
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 71e54ef0931e..97901296894e 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -517,10 +517,10 @@ sys32_swapoff_wrapper:
llgtr %r2,%r2 # const char *
jg sys_swapoff # branch to system call
- .globl sys32_sysinfo_wrapper
-sys32_sysinfo_wrapper:
+ .globl compat_sys_sysinfo_wrapper
+compat_sys_sysinfo_wrapper:
llgtr %r2,%r2 # struct sysinfo_emu31 *
- jg sys32_sysinfo # branch to system call
+ jg compat_sys_sysinfo # branch to system call
.globl sys32_ipc_wrapper
sys32_ipc_wrapper:
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index f4b62df02aa2..51653d82d7df 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -167,7 +167,7 @@ static DECLARE_MUTEX(debug_lock);
static int initialized;
-static struct file_operations debug_file_ops = {
+static const struct file_operations debug_file_ops = {
.owner = THIS_MODULE,
.read = debug_output,
.write = debug_input,
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 03739813d3bf..50c5210fbc64 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -740,7 +740,7 @@ setup_arch(char **cmdline_p)
#endif /* CONFIG_64BIT */
/* Save unparsed command line copy for /proc/cmdline */
- strlcpy(saved_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
+ strlcpy(boot_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
*cmdline_p = COMMAND_LINE;
*(*cmdline_p + COMMAND_LINE_SIZE - 1) = '\0';
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 65b52320d145..83a4ea6e3d60 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -57,7 +57,7 @@ static void smp_ext_bitcall(int, ec_bit_sig);
static void smp_ext_bitcall_others(ec_bit_sig);
/*
-5B * Structure and data for smp_call_function(). This is designed to minimise
+ * Structure and data for smp_call_function(). This is designed to minimise
* static memory requirements. It also looks cleaner.
*/
static DEFINE_SPINLOCK(call_lock);
@@ -104,7 +104,7 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic,
* remote CPUs are nearly ready to execute <<func>> or are or have executed.
*
* You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
+ * hardware interrupt handler.
*/
{
struct call_data_struct data;
@@ -113,8 +113,8 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic,
if (cpus <= 0)
return 0;
- /* Can deadlock when called with interrupts disabled */
- WARN_ON(irqs_disabled());
+ /* Can deadlock when interrupts are disabled or if in wrong context */
+ WARN_ON(irqs_disabled() || in_irq());
data.func = func;
data.info = info;
@@ -123,7 +123,7 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic,
if (wait)
atomic_set(&data.finished, 0);
- spin_lock(&call_lock);
+ spin_lock_bh(&call_lock);
call_data = &data;
/* Send a message to all other CPUs and wait for them to respond */
smp_ext_bitcall_others(ec_call_function);
@@ -135,7 +135,7 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic,
if (wait)
while (atomic_read(&data.finished) != cpus)
cpu_relax();
- spin_unlock(&call_lock);
+ spin_unlock_bh(&call_lock);
return 0;
}
@@ -159,6 +159,9 @@ int smp_call_function_on(void (*func) (void *info), void *info,
if (!cpu_online(cpu))
return -EINVAL;
+ /* Can deadlock when interrupts are disabled or if in wrong context */
+ WARN_ON(irqs_disabled() || in_irq());
+
/* disable preemption for local function call */
curr_cpu = get_cpu();
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index a4ceae3dbcf1..a52c44455bf0 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -124,7 +124,7 @@ NI_SYSCALL /* old "idle" system call */
NI_SYSCALL /* vm86old for i386 */
SYSCALL(sys_wait4,sys_wait4,compat_sys_wait4_wrapper)
SYSCALL(sys_swapoff,sys_swapoff,sys32_swapoff_wrapper) /* 115 */
-SYSCALL(sys_sysinfo,sys_sysinfo,sys32_sysinfo_wrapper)
+SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
SYSCALL(sys_ipc,sys_ipc,sys32_ipc_wrapper)
SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
SYSCALL(sys_sigreturn_glue,sys_sigreturn_glue,sys32_sigreturn_glue)
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index a48907392522..c30716ae130c 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -91,11 +91,14 @@ SECTIONS
.con_initcall.init : { *(.con_initcall.init) }
__con_initcall_end = .;
SECURITY_INIT
+
+#ifdef CONFIG_BLK_DEV_INITRD
. = ALIGN(256);
__initramfs_start = .;
.init.ramfs : { *(.init.initramfs) }
. = ALIGN(2);
__initramfs_end = .;
+#endif
. = ALIGN(256);
__per_cpu_start = .;
.data.percpu : { *(.data.percpu) }
diff --git a/arch/s390/mm/Makefile b/arch/s390/mm/Makefile
index 8e09db1edbb9..f95449b29fa5 100644
--- a/arch/s390/mm/Makefile
+++ b/arch/s390/mm/Makefile
@@ -2,6 +2,6 @@
# Makefile for the linux s390-specific parts of the memory manager.
#
-obj-y := init.o fault.o ioremap.o extmem.o mmap.o vmem.o
+obj-y := init.o fault.o extmem.o mmap.o vmem.o
obj-$(CONFIG_CMM) += cmm.o
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 9ff143e87746..641aef36ccc4 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -83,12 +83,10 @@ static inline int notify_page_fault(enum die_val val, const char *str,
}
#endif
-extern spinlock_t timerlist_lock;
/*
* Unlock any spinlocks which will prevent us from getting the
- * message out (timerlist_lock is acquired through the
- * console unblank code)
+ * message out.
*/
void bust_spinlocks(int yes)
{
diff --git a/arch/s390/mm/ioremap.c b/arch/s390/mm/ioremap.c
deleted file mode 100644
index 3d2100a4e209..000000000000
--- a/arch/s390/mm/ioremap.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * arch/s390/mm/ioremap.c
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Hartmut Penner (hp@de.ibm.com)
- *
- * Derived from "arch/i386/mm/extable.c"
- * (C) Copyright 1995 1996 Linus Torvalds
- *
- * Re-map IO memory to kernel address space so that we can access it.
- * This is needed for high PCI addresses that aren't mapped in the
- * 640k-1MB IO memory area on PC's
- */
-
-#include <linux/vmalloc.h>
-#include <linux/mm.h>
-#include <linux/io.h>
-#include <asm/pgalloc.h>
-
-/*
- * Generic mapping function (not visible outside):
- */
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- */
-void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
-{
- void * addr;
- struct vm_struct * area;
-
- if (phys_addr < virt_to_phys(high_memory))
- return phys_to_virt(phys_addr);
- if (phys_addr & ~PAGE_MASK)
- return NULL;
- size = PAGE_ALIGN(size);
- if (!size || size > phys_addr + size)
- return NULL;
- area = get_vm_area(size, VM_IOREMAP);
- if (!area)
- return NULL;
- addr = area->addr;
- if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
- phys_addr, __pgprot(flags))) {
- vfree(addr);
- return NULL;
- }
- return addr;
-}
-
-void iounmap(void *addr)
-{
- if (addr > high_memory)
- vfree(addr);
-}
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