11 files changed, 86 insertions, 159 deletions

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index f1d2899e9a62..db185f34e341 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -24,6 +24,10 @@ config 64BIT
         bool
         default y
 
+config ZONE_DMA
+        def_bool y
+        depends on !IA64_SGI_SN2
+
 config MMU
         bool
         default y
diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c
index 578737ec7629..c05bda662364 100644
--- a/arch/ia64/ia32/binfmt_elf32.c
+++ b/arch/ia64/ia32/binfmt_elf32.c
@@ -91,9 +91,8 @@ ia64_elf32_init (struct pt_regs *regs)
          * it with privilege level 3 because the IVE uses non-privileged accesses to these
          * tables.  IA-32 segmentation is used to protect against IA-32 accesses to them.
          */
-        vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (vma) {
-                memset(vma, 0, sizeof(*vma));
                 vma->vm_mm = current->mm;
                 vma->vm_start = IA32_GDT_OFFSET;
                 vma->vm_end = vma->vm_start + PAGE_SIZE;
@@ -117,9 +116,8 @@ ia64_elf32_init (struct pt_regs *regs)
          * code is locked in specific gate page, which is pointed by pretcode
          * when setup_frame_ia32
          */
-        vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (vma) {
-                memset(vma, 0, sizeof(*vma));
                 vma->vm_mm = current->mm;
                 vma->vm_start = IA32_GATE_OFFSET;
                 vma->vm_end = vma->vm_start + PAGE_SIZE;
@@ -142,9 +140,8 @@ ia64_elf32_init (struct pt_regs *regs)
          * Install LDT as anonymous memory.  This gives us all-zero segment descriptors
          * until a task modifies them via modify_ldt().
          */
-        vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (vma) {
-                memset(vma, 0, sizeof(*vma));
                 vma->vm_mm = current->mm;
                 vma->vm_start = IA32_LDT_OFFSET;
                 vma->vm_end = vma->vm_start + PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE);
@@ -214,12 +211,10 @@ ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
                 bprm->loader += stack_base;
         bprm->exec += stack_base;
 
-        mpnt = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (!mpnt)
                 return -ENOMEM;
 
-        memset(mpnt, 0, sizeof(*mpnt));
-
         down_write(&current->mm->mmap_sem);
         {
                 mpnt->vm_mm = current->mm;
diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S
index a32cd59b81ed..687e5fdc9683 100644
--- a/arch/ia64/ia32/ia32_entry.S
+++ b/arch/ia64/ia32/ia32_entry.S
@@ -326,7 +326,7 @@ ia32_syscall_table:
         data8 sys_ni_syscall
         data8 compat_sys_wait4
         data8 sys_swapoff         /* 115 */
-        data8 sys32_sysinfo
+        data8 compat_sys_sysinfo
         data8 sys32_ipc
         data8 sys_fsync
         data8 sys32_sigreturn
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index 957681c39ad9..d430d36ae49d 100644
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -2209,74 +2209,6 @@ sys32_fstat64 (unsigned int fd, struct stat64 __user *statbuf)
         return ret;
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        u16 procs;
-        u16 pad;
-        u32 totalhigh;
-        u32 freehigh;
-        u32 mem_unit;
-        char _f[8];
-};
-
-asmlinkage long
-sys32_sysinfo (struct sysinfo32 __user *info)
-{
-        struct sysinfo s;
-        long ret, err;
-        int bitcount = 0;
-        mm_segment_t old_fs = get_fs();
-
-        set_fs(KERNEL_DS);
-        ret = sys_sysinfo((struct sysinfo __user *) &s);
-        set_fs(old_fs);
-        /* Check to see if any memory value is too large for 32-bit and
-         * scale down if needed.
-         */
-        if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-                while (s.mem_unit < PAGE_SIZE) {
-                        s.mem_unit <<= 1;
-                        bitcount++;
-                }
-                s.totalram >>= bitcount;
-                s.freeram >>= bitcount;
-                s.sharedram >>= bitcount;
-                s.bufferram >>= bitcount;
-                s.totalswap >>= bitcount;
-                s.freeswap >>= bitcount;
-                s.totalhigh >>= bitcount;
-                s.freehigh >>= bitcount;
-        }
-
-        if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
-                return -EFAULT;
-
-        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 (pid_t pid, struct compat_timespec __user *interval)
 {
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index aa94f60fa8e7..86e144f321ff 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2301,12 +2301,11 @@ pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned lon
         DPRINT(("smpl_buf @%p\n", smpl_buf));
 
         /* allocate vma */
-        vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (!vma) {
                 DPRINT(("Cannot allocate vma\n"));
                 goto error_kmem;
         }
-        memset(vma, 0, sizeof(*vma));
 
         /*
          * partially initialize the vma for the sampling buffer
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index ab684747036f..765cbe5ba6ae 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -24,8 +24,6 @@
 #include <asm/uaccess.h>
 #include <asm/kdebug.h>
 
-extern spinlock_t timerlist_lock;
-
 fpswa_interface_t *fpswa_interface;
 EXPORT_SYMBOL(fpswa_interface);
 
@@ -53,34 +51,6 @@ trap_init (void)
                 fpswa_interface = __va(ia64_boot_param->fpswa);
 }
 
-/*
- * Unlock any spinlocks which will prevent us from getting the message out (timerlist_lock
- * is acquired through the console unblank code)
- */
-void
-bust_spinlocks (int yes)
-{
-        int loglevel_save = console_loglevel;
-
-        if (yes) {
-                oops_in_progress = 1;
-                return;
-        }
-
-#ifdef CONFIG_VT
-        unblank_screen();
-#endif
-        oops_in_progress = 0;
-        /*
-         * OK, the message is on the console.  Now we call printk() without
-         * oops_in_progress set so that printk will give klogd a poke.  Hold onto
-         * your hats...
-         */
-        console_loglevel = 15;          /* NMI oopser may have shut the console up */
-        printk(" ");
-        console_loglevel = loglevel_save;
-}
-
 void
 die (const char *str, struct pt_regs *regs, long err)
 {
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 8f3d0066f446..25dd55e4db24 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -111,12 +111,14 @@ SECTIONS
   .init.data : AT(ADDR(.init.data) - LOAD_OFFSET)
         { *(.init.data) }
 
+#ifdef CONFIG_BLK_DEV_INITRD
   .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET)
         {
           __initramfs_start = .;
           *(.init.ramfs)
           __initramfs_end = .;
         }
+#endif
 
    . = ALIGN(16);
   .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET)
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 63e6d49c5813..ca4d41e5f177 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -259,9 +259,11 @@ paging_init (void)
         num_physpages = 0;
         efi_memmap_walk(count_pages, &num_physpages);
 
-        max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
         memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
+#ifdef CONFIG_ZONE_DMA
+        max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
         max_zone_pfns[ZONE_DMA] = max_dma;
+#endif
         max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 
 #ifdef CONFIG_VIRTUAL_MEM_MAP
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 6eae596c509d..16835108bb5b 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -37,7 +37,9 @@ struct early_node_data {
         unsigned long pernode_size;
         struct bootmem_data bootmem_data;
         unsigned long num_physpages;
+#ifdef CONFIG_ZONE_DMA
         unsigned long num_dma_physpages;
+#endif
         unsigned long min_pfn;
         unsigned long max_pfn;
 };
@@ -633,9 +635,11 @@ static __init int count_node_pages(unsigned long start, unsigned long len, int n
         unsigned long end = start + len;
 
         mem_data[node].num_physpages += len >> PAGE_SHIFT;
+#ifdef CONFIG_ZONE_DMA
         if (start <= __pa(MAX_DMA_ADDRESS))
                 mem_data[node].num_dma_physpages +=
                         (min(end, __pa(MAX_DMA_ADDRESS)) - start) >>PAGE_SHIFT;
+#endif
         start = GRANULEROUNDDOWN(start);
         start = ORDERROUNDDOWN(start);
         end = GRANULEROUNDUP(end);
@@ -688,7 +692,9 @@ void __init paging_init(void)
         }
 
         memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
+#ifdef CONFIG_ZONE_DMA
         max_zone_pfns[ZONE_DMA] = max_dma;
+#endif
         max_zone_pfns[ZONE_NORMAL] = max_pfn;
         free_area_init_nodes(max_zone_pfns);
 
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index faaca21a3718..f225dd72968b 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -68,7 +68,7 @@ max_pgt_pages(void)
 #ifndef CONFIG_NUMA
         node_free_pages = nr_free_pages();
 #else
-        node_free_pages = nr_free_pages_pgdat(NODE_DATA(numa_node_id()));
+        node_free_pages = node_page_state(numa_node_id(), NR_FREE_PAGES);
 #endif
         max_pgt_pages = node_free_pages / PGT_FRACTION_OF_NODE_MEM;
         max_pgt_pages = max(max_pgt_pages, MIN_PGT_PAGES);
@@ -176,9 +176,8 @@ ia64_init_addr_space (void)
          * the problem.  When the process attempts to write to the register backing store
          * for the first time, it will get a SEGFAULT in this case.
          */
-        vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (vma) {
-                memset(vma, 0, sizeof(*vma));
                 vma->vm_mm = current->mm;
                 vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
                 vma->vm_end = vma->vm_start + PAGE_SIZE;
@@ -195,9 +194,8 @@ ia64_init_addr_space (void)
 
         /* map NaT-page at address zero to speed up speculative dereferencing of NULL: */
         if (!(current->personality & MMAP_PAGE_ZERO)) {
-                vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+                vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
                 if (vma) {
-                        memset(vma, 0, sizeof(*vma));
                         vma->vm_mm = current->mm;
                         vma->vm_end = PAGE_SIZE;
                         vma->vm_page_prot = __pgprot(pgprot_val(PAGE_READONLY) | _PAGE_MA_NAT);
diff --git a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
index 43ddc2eccb96..62b3e9a496ac 100644
--- a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
+++ b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
@@ -89,61 +89,80 @@ static int coherence_id_open(struct inode *inode, struct file *file)
         return single_open(file, coherence_id_show, NULL);
 }
 
-static struct proc_dir_entry
-*sn_procfs_create_entry(const char *name, struct proc_dir_entry *parent,
-                        int (*openfunc)(struct inode *, struct file *),
-        int (*releasefunc)(struct inode *, struct file *),
-        ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *))
-{
-        struct proc_dir_entry *e = create_proc_entry(name, 0444, parent);
-
-        if (e) {
-                struct file_operations *f;
-
-                f = kzalloc(sizeof(*f), GFP_KERNEL);
-                if (f) {
-                        f->open = openfunc;
-                        f->read = seq_read;
-                        f->llseek = seq_lseek;
-                        f->release = releasefunc;
-                        f->write = write;
-                        e->proc_fops = f;
-                }
-        }
-
-        return e;
-}
-
 /* /proc/sgi_sn/sn_topology uses seq_file, see sn_hwperf.c */
 extern int sn_topology_open(struct inode *, struct file *);
 extern int sn_topology_release(struct inode *, struct file *);
 
+static const struct file_operations proc_partition_id_fops = {
+        .open           = partition_id_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_system_sn_fops = {
+        .open           = system_serial_number_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_license_id_fops = {
+        .open           = licenseID_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_sn_force_intr_fops = {
+        .open           = sn_force_interrupt_open,
+        .read           = seq_read,
+        .write          = sn_force_interrupt_write_proc,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_coherence_id_fops = {
+        .open           = coherence_id_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static const struct file_operations proc_sn_topo_fops = {
+        .open           = sn_topology_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = sn_topology_release,
+};
+
 void register_sn_procfs(void)
 {
         static struct proc_dir_entry *sgi_proc_dir = NULL;
+        struct proc_dir_entry *pde;
 
         BUG_ON(sgi_proc_dir != NULL);
         if (!(sgi_proc_dir = proc_mkdir("sgi_sn", NULL)))
                 return;
 
-        sn_procfs_create_entry("partition_id", sgi_proc_dir,
-                partition_id_open, single_release, NULL);
-
-        sn_procfs_create_entry("system_serial_number", sgi_proc_dir,
-                system_serial_number_open, single_release, NULL);
-
-        sn_procfs_create_entry("licenseID", sgi_proc_dir, 
-                licenseID_open, single_release, NULL);
-
-        sn_procfs_create_entry("sn_force_interrupt", sgi_proc_dir,
-                sn_force_interrupt_open, single_release,
-                sn_force_interrupt_write_proc);
-
-        sn_procfs_create_entry("coherence_id", sgi_proc_dir, 
-                coherence_id_open, single_release, NULL);
-        
-        sn_procfs_create_entry("sn_topology", sgi_proc_dir,
-                sn_topology_open, sn_topology_release, NULL);
+        pde = create_proc_entry("partition_id", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_partition_id_fops;
+        pde = create_proc_entry("system_serial_number", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_system_sn_fops;
+        pde = create_proc_entry("licenseID", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_license_id_fops;
+        pde = create_proc_entry("sn_force_interrupt", 0644, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_sn_force_intr_fops;
+        pde = create_proc_entry("coherence_id", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_coherence_id_fops;
+        pde = create_proc_entry("sn_topology", 0444, sgi_proc_dir);
+        if (pde)
+                pde->proc_fops = &proc_sn_topo_fops;
 }
 
 #endif /* CONFIG_PROC_FS */