Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] cmpxchg: implement cmpxchg64()
  [S390] xchg/cmpxchg: move to own header file
  [S390] ccwgroup_driver: remove duplicate members
  [S390] ccw_bus_type: make it static
  [S390] ccw_driver: remove duplicate members
  [S390] qdio: prevent handling of buffers if count is zero
  [S390] setup: register bss section as resource
  [S390] setup: simplify setup_resources()
  [S390] wire up sys_syncfs
  [S390] wire up sys_clock_adjtime
  [S390] wire up sys_open_by_handle_at
  [S390] wire up sys_name_to_handle_at
  [S390] oprofile: disable hw sampling for CONFIG_32BIT
  [S390] early: limit savesys cmd string handling
  [S390] early: Fix possible overlapping data buffer

4 files changed, 86 insertions, 55 deletions

diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 8e60fb23b90d..1dc96ea08fa8 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1877,3 +1877,30 @@ sys_prlimit64_wrapper:
         llgtr   %r4,%r4                 # const struct rlimit64 __user *
         llgtr   %r5,%r5                 # struct rlimit64 __user *
         jg      sys_prlimit64           # branch to system call
+
+        .globl  sys_name_to_handle_at_wrapper
+sys_name_to_handle_at_wrapper:
+        lgfr    %r2,%r2                 # int
+        llgtr   %r3,%r3                 # const char __user *
+        llgtr   %r4,%r4                 # struct file_handle __user *
+        llgtr   %r5,%r5                 # int __user *
+        lgfr    %r6,%r6                 # int
+        jg      sys_name_to_handle_at
+
+        .globl  compat_sys_open_by_handle_at_wrapper
+compat_sys_open_by_handle_at_wrapper:
+        lgfr    %r2,%r2                 # int
+        llgtr   %r3,%r3                 # struct file_handle __user *
+        lgfr    %r4,%r4                 # int
+        jg      compat_sys_open_by_handle_at
+
+        .globl  compat_sys_clock_adjtime_wrapper
+compat_sys_clock_adjtime_wrapper:
+        lgfr    %r2,%r2                 # clockid_t (int)
+        llgtr   %r3,%r3                 # struct compat_timex __user *
+        jg      compat_sys_clock_adjtime
+
+        .globl  sys_syncfs_wrapper
+sys_syncfs_wrapper:
+        lgfr    %r2,%r2                 # int
+        jg      sys_syncfs
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 3b7e7dddc324..068f8465c4ee 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -94,6 +94,7 @@ static noinline __init void create_kernel_nss(void)
         unsigned int sinitrd_pfn, einitrd_pfn;
 #endif
         int response;
+        int hlen;
         size_t len;
         char *savesys_ptr;
         char defsys_cmd[DEFSYS_CMD_SIZE];
@@ -124,24 +125,27 @@ static noinline __init void create_kernel_nss(void)
         end_pfn = PFN_UP(__pa(&_end));
         min_size = end_pfn << 2;
 
-        sprintf(defsys_cmd, "DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X",
-                kernel_nss_name, stext_pfn - 1, stext_pfn, eshared_pfn - 1,
-                eshared_pfn, end_pfn);
+        hlen = snprintf(defsys_cmd, DEFSYS_CMD_SIZE,
+                        "DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X",
+                        kernel_nss_name, stext_pfn - 1, stext_pfn,
+                        eshared_pfn - 1, eshared_pfn, end_pfn);
 
 #ifdef CONFIG_BLK_DEV_INITRD
         if (INITRD_START && INITRD_SIZE) {
                 sinitrd_pfn = PFN_DOWN(__pa(INITRD_START));
                 einitrd_pfn = PFN_UP(__pa(INITRD_START + INITRD_SIZE));
                 min_size = einitrd_pfn << 2;
-                sprintf(defsys_cmd, "%s EW %.5X-%.5X", defsys_cmd,
-                sinitrd_pfn, einitrd_pfn);
+                hlen += snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen,
+                                 " EW %.5X-%.5X", sinitrd_pfn, einitrd_pfn);
         }
 #endif
 
-        sprintf(defsys_cmd, "%s EW MINSIZE=%.7iK PARMREGS=0-13",
-                defsys_cmd, min_size);
-        sprintf(savesys_cmd, "SAVESYS %s \n IPL %s",
-                kernel_nss_name, kernel_nss_name);
+        snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen,
+                 " EW MINSIZE=%.7iK PARMREGS=0-13", min_size);
+        defsys_cmd[DEFSYS_CMD_SIZE - 1] = '\0';
+        snprintf(savesys_cmd, SAVESYS_CMD_SIZE, "SAVESYS %s \n IPL %s",
+                 kernel_nss_name, kernel_nss_name);
+        savesys_cmd[SAVESYS_CMD_SIZE - 1] = '\0';
 
         __cpcmd(defsys_cmd, NULL, 0, &response);
 
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 6f6350826c81..ed183c2c6168 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -102,16 +102,6 @@ EXPORT_SYMBOL(lowcore_ptr);
 
 #include <asm/setup.h>
 
-static struct resource code_resource = {
-        .name  = "Kernel code",
-        .flags = IORESOURCE_BUSY | IORESOURCE_MEM,
-};
-
-static struct resource data_resource = {
-        .name = "Kernel data",
-        .flags = IORESOURCE_BUSY | IORESOURCE_MEM,
-};
-
 /*
  * condev= and conmode= setup parameter.
  */
@@ -436,21 +426,43 @@ setup_lowcore(void)
         lowcore_ptr[0] = lc;
 }
 
-static void __init
-setup_resources(void)
+static struct resource code_resource = {
+        .name  = "Kernel code",
+        .flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+};
+
+static struct resource data_resource = {
+        .name = "Kernel data",
+        .flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+};
+
+static struct resource bss_resource = {
+        .name = "Kernel bss",
+        .flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+};
+
+static struct resource __initdata *standard_resources[] = {
+        &code_resource,
+        &data_resource,
+        &bss_resource,
+};
+
+static void __init setup_resources(void)
 {
-        struct resource *res, *sub_res;
-        int i;
+        struct resource *res, *std_res, *sub_res;
+        int i, j;
 
         code_resource.start = (unsigned long) &_text;
         code_resource.end = (unsigned long) &_etext - 1;
         data_resource.start = (unsigned long) &_etext;
         data_resource.end = (unsigned long) &_edata - 1;
+        bss_resource.start = (unsigned long) &__bss_start;
+        bss_resource.end = (unsigned long) &__bss_stop - 1;
 
         for (i = 0; i < MEMORY_CHUNKS; i++) {
                 if (!memory_chunk[i].size)
                         continue;
-                res = alloc_bootmem_low(sizeof(struct resource));
+                res = alloc_bootmem_low(sizeof(*res));
                 res->flags = IORESOURCE_BUSY | IORESOURCE_MEM;
                 switch (memory_chunk[i].type) {
                 case CHUNK_READ_WRITE:
@@ -464,40 +476,24 @@ setup_resources(void)
                         res->name = "reserved";
                 }
                 res->start = memory_chunk[i].addr;
-                res->end = memory_chunk[i].addr +  memory_chunk[i].size - 1;
+                res->end = res->start + memory_chunk[i].size - 1;
                 request_resource(&iomem_resource, res);
 
-                if (code_resource.start >= res->start  &&
-                        code_resource.start <= res->end &&
-                        code_resource.end > res->end) {
-                        sub_res = alloc_bootmem_low(sizeof(struct resource));
-                        memcpy(sub_res, &code_resource,
-                                sizeof(struct resource));
-                        sub_res->end = res->end;
-                        code_resource.start = res->end + 1;
-                        request_resource(res, sub_res);
-                }
-
-                if (code_resource.start >= res->start &&
-                        code_resource.start <= res->end &&
-                        code_resource.end <= res->end)
-                        request_resource(res, &code_resource);
-
-                if (data_resource.start >= res->start &&
-                        data_resource.start <= res->end &&
-                        data_resource.end > res->end) {
-                        sub_res = alloc_bootmem_low(sizeof(struct resource));
-                        memcpy(sub_res, &data_resource,
-                                sizeof(struct resource));
-                        sub_res->end = res->end;
-                        data_resource.start = res->end + 1;
-                        request_resource(res, sub_res);
+                for (j = 0; j < ARRAY_SIZE(standard_resources); j++) {
+                        std_res = standard_resources[j];
+                        if (std_res->start < res->start ||
+                            std_res->start > res->end)
+                                continue;
+                        if (std_res->end > res->end) {
+                                sub_res = alloc_bootmem_low(sizeof(*sub_res));
+                                *sub_res = *std_res;
+                                sub_res->end = res->end;
+                                std_res->start = res->end + 1;
+                                request_resource(res, sub_res);
+                        } else {
+                                request_resource(res, std_res);
+                        }
                 }
-
-                if (data_resource.start >= res->start &&
-                        data_resource.start <= res->end &&
-                        data_resource.end <= res->end)
-                        request_resource(res, &data_resource);
         }
 }
 
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index a8fee1b14395..9c65fd4ddce0 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -343,3 +343,7 @@ SYSCALL(sys_perf_event_open,sys_perf_event_open,sys_perf_event_open_wrapper)
 SYSCALL(sys_fanotify_init,sys_fanotify_init,sys_fanotify_init_wrapper)
 SYSCALL(sys_fanotify_mark,sys_fanotify_mark,sys_fanotify_mark_wrapper)
 SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper)
+SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */
+SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper)
+SYSCALL(sys_clock_adjtime,sys_clock_adjtime,compat_sys_clock_adjtime_wrapper)
+SYSCALL(sys_syncfs,sys_syncfs,sys_syncfs_wrapper)