7 files changed, 72 insertions, 41 deletions

diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 2001767e1dc7..5b33f823863a 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -757,7 +757,9 @@ asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
                             put_user(oldlen, (u32 __user *)compat_ptr(tmp.oldlenp)))
                                 error = -EFAULT;
                 }
-                copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
+                if (copy_to_user(args->__unused, tmp.__unused,
+                                 sizeof(tmp.__unused)))
+                        error = -EFAULT;
         }
         return error;
 }
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index d49b876a83bf..861888ab8c13 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -169,12 +169,12 @@ sys32_sigaction(int sig, const struct old_sigaction32 __user *act,
                 compat_old_sigset_t mask;
                 if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
                     __get_user(sa_handler, &act->sa_handler) ||
-                    __get_user(sa_restorer, &act->sa_restorer))
+                    __get_user(sa_restorer, &act->sa_restorer) ||
+                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+                    __get_user(mask, &act->sa_mask))
                         return -EFAULT;
                 new_ka.sa.sa_handler = (__sighandler_t) sa_handler;
                 new_ka.sa.sa_restorer = (void (*)(void)) sa_restorer;
-                __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-                __get_user(mask, &act->sa_mask);
                 siginitset(&new_ka.sa.sa_mask, mask);
         }
 
@@ -185,10 +185,10 @@ sys32_sigaction(int sig, const struct old_sigaction32 __user *act,
                 sa_restorer = (unsigned long) old_ka.sa.sa_restorer;
                 if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
                     __put_user(sa_handler, &oact->sa_handler) ||
-                    __put_user(sa_restorer, &oact->sa_restorer))
+                    __put_user(sa_restorer, &oact->sa_restorer) ||
+                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
                         return -EFAULT;
-                __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-                __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
         }
 
         return ret;
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index cb0efae6802f..71e54ef0931e 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1664,4 +1664,4 @@ sys_getcpu_wrapper:
         llgtr   %r2,%r2                 # unsigned *
         llgtr   %r3,%r3                 # unsigned *
         llgtr   %r4,%r4                 # struct getcpu_cache *
-        jg      sys_tee
+        jg      sys_getcpu
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 49f2b68e32b1..2aa13e8e000a 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -70,6 +70,7 @@ struct {
 #define CHUNK_READ_WRITE 0
 #define CHUNK_READ_ONLY 1
 volatile int __cpu_logical_map[NR_CPUS]; /* logical cpu to cpu address */
+unsigned long __initdata zholes_size[MAX_NR_ZONES];
 static unsigned long __initdata memory_end;
 
 /*
@@ -357,6 +358,21 @@ void machine_power_off(void)
  */
 void (*pm_power_off)(void) = machine_power_off;
 
+static void __init
+add_memory_hole(unsigned long start, unsigned long end)
+{
+        unsigned long dma_pfn = MAX_DMA_ADDRESS >> PAGE_SHIFT;
+
+        if (end <= dma_pfn)
+                zholes_size[ZONE_DMA] += end - start + 1;
+        else if (start > dma_pfn)
+                zholes_size[ZONE_NORMAL] += end - start + 1;
+        else {
+                zholes_size[ZONE_DMA] += dma_pfn - start + 1;
+                zholes_size[ZONE_NORMAL] += end - dma_pfn;
+        }
+}
+
 static int __init early_parse_mem(char *p)
 {
         memory_end = memparse(p, &p);
@@ -434,7 +450,7 @@ setup_lowcore(void)
                 lc->extended_save_area_addr = (__u32)
                         __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0);
                 /* enable extended save area */
-                ctl_set_bit(14, 29);
+                __ctl_set_bit(14, 29);
         }
 #endif
         set_prefix((u32)(unsigned long) lc);
@@ -478,6 +494,7 @@ setup_memory(void)
 {
         unsigned long bootmap_size;
         unsigned long start_pfn, end_pfn, init_pfn;
+        unsigned long last_rw_end;
         int i;
 
         /*
@@ -533,27 +550,39 @@ setup_memory(void)
         /*
          * Register RAM areas with the bootmem allocator.
          */
+        last_rw_end = start_pfn;
 
         for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) {
-                unsigned long start_chunk, end_chunk, pfn;
+                unsigned long start_chunk, end_chunk;
 
                 if (memory_chunk[i].type != CHUNK_READ_WRITE)
                         continue;
-                start_chunk = PFN_DOWN(memory_chunk[i].addr);
-                end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size) - 1;
-                end_chunk = min(end_chunk, end_pfn);
-                if (start_chunk >= end_chunk)
-                        continue;
-                add_active_range(0, start_chunk, end_chunk);
-                pfn = max(start_chunk, start_pfn);
-                for (; pfn <= end_chunk; pfn++)
-                        page_set_storage_key(PFN_PHYS(pfn), PAGE_DEFAULT_KEY);
+                start_chunk = (memory_chunk[i].addr + PAGE_SIZE - 1);
+                start_chunk >>= PAGE_SHIFT;
+                end_chunk = (memory_chunk[i].addr + memory_chunk[i].size);
+                end_chunk >>= PAGE_SHIFT;
+                if (start_chunk < start_pfn)
+                        start_chunk = start_pfn;
+                if (end_chunk > end_pfn)
+                        end_chunk = end_pfn;
+                if (start_chunk < end_chunk) {
+                        /* Initialize storage key for RAM pages */
+                        for (init_pfn = start_chunk ; init_pfn < end_chunk;
+                             init_pfn++)
+                                page_set_storage_key(init_pfn << PAGE_SHIFT,
+                                                     PAGE_DEFAULT_KEY);
+                        free_bootmem(start_chunk << PAGE_SHIFT,
+                                     (end_chunk - start_chunk) << PAGE_SHIFT);
+                        if (last_rw_end < start_chunk)
+                                add_memory_hole(last_rw_end, start_chunk - 1);
+                        last_rw_end = end_chunk;
+                }
         }
 
         psw_set_key(PAGE_DEFAULT_KEY);
 
-        free_bootmem_with_active_regions(0, max_pfn);
-        reserve_bootmem(0, PFN_PHYS(start_pfn));
+        if (last_rw_end < end_pfn - 1)
+                add_memory_hole(last_rw_end, end_pfn - 1);
 
         /*
          * Reserve the bootmem bitmap itself as well. We do this in two
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 4392a77cbae8..4c8a7954ef48 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -80,10 +80,10 @@ sys_sigaction(int sig, const struct old_sigaction __user *act,
                 old_sigset_t mask;
                 if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
                     __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
+                    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
+                    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+                    __get_user(mask, &act->sa_mask))
                         return -EFAULT;
-                __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-                __get_user(mask, &act->sa_mask);
                 siginitset(&new_ka.sa.sa_mask, mask);
         }
 
@@ -92,10 +92,10 @@ sys_sigaction(int sig, const struct old_sigaction __user *act,
         if (!ret && oact) {
                 if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
                     __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
+                    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
+                    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+                    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
                         return -EFAULT;
-                __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-                __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
         }
 
         return ret;
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 66375a5e3d12..92ecffbc8d82 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -462,7 +462,8 @@ asmlinkage void illegal_op(struct pt_regs * regs, long interruption_code)
                 local_irq_enable();
 
         if (regs->psw.mask & PSW_MASK_PSTATE) {
-                get_user(*((__u16 *) opcode), (__u16 __user *) location);
+                if (get_user(*((__u16 *) opcode), (__u16 __user *) location))
+                        return;
                 if (*((__u16 *) opcode) == S390_BREAKPOINT_U16) {
                         if (current->ptrace & PT_PTRACED)
                                 force_sig(SIGTRAP, current);
@@ -470,20 +471,25 @@ asmlinkage void illegal_op(struct pt_regs * regs, long interruption_code)
                                 signal = SIGILL;
 #ifdef CONFIG_MATHEMU
                 } else if (opcode[0] == 0xb3) {
-                        get_user(*((__u16 *) (opcode+2)), location+1);
+                        if (get_user(*((__u16 *) (opcode+2)), location+1))
+                                return;
                         signal = math_emu_b3(opcode, regs);
                 } else if (opcode[0] == 0xed) {
-                        get_user(*((__u32 *) (opcode+2)),
-                                 (__u32 __user *)(location+1));
+                        if (get_user(*((__u32 *) (opcode+2)),
+                                     (__u32 __user *)(location+1)))
+                                return;
                         signal = math_emu_ed(opcode, regs);
                 } else if (*((__u16 *) opcode) == 0xb299) {
-                        get_user(*((__u16 *) (opcode+2)), location+1);
+                        if (get_user(*((__u16 *) (opcode+2)), location+1))
+                                return;
                         signal = math_emu_srnm(opcode, regs);
                 } else if (*((__u16 *) opcode) == 0xb29c) {
-                        get_user(*((__u16 *) (opcode+2)), location+1);
+                        if (get_user(*((__u16 *) (opcode+2)), location+1))
+                                return;
                         signal = math_emu_stfpc(opcode, regs);
                 } else if (*((__u16 *) opcode) == 0xb29d) {
-                        get_user(*((__u16 *) (opcode+2)), location+1);
+                        if (get_user(*((__u16 *) (opcode+2)), location+1))
+                                return;
                         signal = math_emu_lfpc(opcode, regs);
 #endif
                 } else
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index af9e69a03011..fe0f2e97ba7b 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -83,13 +83,7 @@ SECTIONS
   __setup_end = .;
   __initcall_start = .;
   .initcall.init : {
-        *(.initcall1.init) 
-        *(.initcall2.init) 
-        *(.initcall3.init) 
-        *(.initcall4.init) 
-        *(.initcall5.init) 
-        *(.initcall6.init) 
-        *(.initcall7.init)
+        INITCALLS
   }
   __initcall_end = .;
   __con_initcall_start = .;