Merge branch 'master' into 85xx

14 files changed, 144 insertions, 172 deletions

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index dd17dffbf058..7ec4ac77c0fa 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -44,7 +44,7 @@ extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_ppc970MP(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_pa6t(unsigned long offset, struct cpu_spec* spec);
-extern void __restore_cpu_pa6t(unsigned long offset, struct cpu_spec* spec);
+extern void __restore_cpu_pa6t(void);
 extern void __restore_cpu_ppc970(void);
 #endif /* CONFIG_PPC64 */
 
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index accb39d49911..a15d4b8cce48 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -32,8 +32,6 @@
 #include <asm/page.h>
 #include <asm/mmu.h>
 #include <asm/pgtable.h>
-#include <asm/ibm4xx.h>
-#include <asm/ibm44x.h>
 #include <asm/cputable.h>
 #include <asm/thread_info.h>
 #include <asm/ppc_asm.h>
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 5e6ddfa474c0..89f46f377922 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -498,7 +498,7 @@ static int __init check_legacy_serial_console(void)
         DBG(" -> check_legacy_serial_console()\n");
 
         /* The user has requested a console so this is already set up. */
-        if (strstr(saved_command_line, "console=")) {
+        if (strstr(boot_command_line, "console=")) {
                 DBG(" console was specified !\n");
                 return -EBUSY;
         }
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 0de5a08cf9b0..89486b631284 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -571,7 +571,7 @@ static int lparcfg_open(struct inode *inode, struct file *file)
         return single_open(file, lparcfg_data, NULL);
 }
 
-struct file_operations lparcfg_fops = {
+const struct file_operations lparcfg_fops = {
         .owner          = THIS_MODULE,
         .read           = seq_read,
         .write          = lparcfg_write,
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 869cebbba967..f9676f52c6d8 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -179,7 +179,7 @@ static int dev_nvram_ioctl(struct inode *inode, struct file *file,
         }
 }
 
-struct file_operations nvram_fops = {
+const struct file_operations nvram_fops = {
         .owner =        THIS_MODULE,
         .llseek =       dev_nvram_llseek,
         .read =         dev_nvram_read,
diff --git a/arch/powerpc/kernel/proc_ppc64.c b/arch/powerpc/kernel/proc_ppc64.c
index dd7001cacf75..f78dfce1b771 100644
--- a/arch/powerpc/kernel/proc_ppc64.c
+++ b/arch/powerpc/kernel/proc_ppc64.c
@@ -33,7 +33,7 @@ static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes
                               loff_t *ppos);
 static int     page_map_mmap( struct file *file, struct vm_area_struct *vma );
 
-static struct file_operations page_map_fops = {
+static const struct file_operations page_map_fops = {
         .llseek = page_map_seek,
         .read   = page_map_read,
         .mmap   = page_map_mmap
@@ -71,7 +71,6 @@ static int __init proc_ppc64_init(void)
         pde = create_proc_entry("ppc64/systemcfg", S_IFREG|S_IRUGO, NULL);
         if (!pde)
                 return 1;
-        pde->nlink = 1;
         pde->data = vdso_data;
         pde->size = PAGE_SIZE;
         pde->proc_fops = &page_map_fops;
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 3be52d693eca..3e86e6e0f778 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -991,7 +991,7 @@ void __init early_init_devtree(void *params)
         of_scan_flat_dt(early_init_dt_scan_memory, NULL);
 
         /* Save command line for /proc/cmdline and then parse parameters */
-        strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
+        strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
         parse_early_param();
 
         /* Reserve LMB regions used by kernel, initrd, dt, etc... */
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 520ef42f642e..4fb5938ce6d3 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2117,11 +2117,92 @@ static void __init fixup_device_tree_pmac(void)
 #define fixup_device_tree_pmac()
 #endif
 
+#ifdef CONFIG_PPC_EFIKA
+/* The current fw of the Efika has a device tree needs quite a few
+ * fixups to be compliant with the mpc52xx bindings. It's currently
+ * unknown if it will ever be compliant (come on bPlan ...) so we do fixups.
+ * NOTE that we (barely) tolerate it because the EFIKA was out before
+ * the bindings were finished, for any new boards -> RTFM ! */
+
+struct subst_entry {
+        char *path;
+        char *property;
+        void *value;
+        int value_len;
+};
+
+static void __init fixup_device_tree_efika(void)
+{
+        /* Substitution table */
+        #define prop_cstr(x) x, sizeof(x)
+        int prop_sound_irq[3] = { 2, 2, 0 };
+        int prop_bcomm_irq[3*16] = { 3,0,0, 3,1,0, 3,2,0, 3,3,0,
+                                     3,4,0, 3,5,0, 3,6,0, 3,7,0,
+                                     3,8,0, 3,9,0, 3,10,0, 3,11,0,
+                                     3,12,0, 3,13,0, 3,14,0, 3,15,0 };
+        struct subst_entry efika_subst_table[] = {
+                { "/",                  "device_type",  prop_cstr("efika") },
+                { "/builtin",           "compatible",   prop_cstr("soc") },
+                { "/builtin/ata",       "compatible",   prop_cstr("mpc5200b-ata\0mpc5200-ata"), },
+                { "/builtin/bestcomm",  "compatible",   prop_cstr("mpc5200b-bestcomm\0mpc5200-bestcomm") },
+                { "/builtin/bestcomm",  "interrupts",   prop_bcomm_irq, sizeof(prop_bcomm_irq) },
+                { "/builtin/ethernet",  "compatible",   prop_cstr("mpc5200b-fec\0mpc5200-fec") },
+                { "/builtin/pic",       "compatible",   prop_cstr("mpc5200b-pic\0mpc5200-pic") },
+                { "/builtin/serial",    "compatible",   prop_cstr("mpc5200b-psc-uart\0mpc5200-psc-uart") },
+                { "/builtin/sound",     "compatible",   prop_cstr("mpc5200b-psc-ac97\0mpc5200-psc-ac97") },
+                { "/builtin/sound",     "interrupts",   prop_sound_irq, sizeof(prop_sound_irq) },
+                { "/builtin/sram",      "compatible",   prop_cstr("mpc5200b-sram\0mpc5200-sram") },
+                { "/builtin/sram",      "device_type",  prop_cstr("sram") },
+                {}
+        };
+        #undef prop_cstr
+
+        /* Vars */
+        u32 node;
+        char prop[64];
+        int rv, i;
+
+        /* Check if we're really running on a EFIKA */
+        node = call_prom("finddevice", 1, 1, ADDR("/"));
+        if (!PHANDLE_VALID(node))
+                return;
+
+        rv = prom_getprop(node, "model", prop, sizeof(prop));
+        if (rv == PROM_ERROR)
+                return;
+        if (strcmp(prop, "EFIKA5K2"))
+                return;
+
+        prom_printf("Applying EFIKA device tree fixups\n");
+
+        /* Process substitution table */
+        for (i=0; efika_subst_table[i].path; i++) {
+                struct subst_entry *se = &efika_subst_table[i];
+
+                node = call_prom("finddevice", 1, 1, ADDR(se->path));
+                if (!PHANDLE_VALID(node)) {
+                        prom_printf("fixup_device_tree_efika: ",
+                                "skipped entry %x - not found\n", i);
+                        continue;
+                }
+
+                rv = prom_setprop(node, se->path, se->property,
+                                        se->value, se->value_len );
+                if (rv == PROM_ERROR)
+                        prom_printf("fixup_device_tree_efika: ",
+                                "skipped entry %x - setprop error\n", i);
+        }
+}
+#else
+#define fixup_device_tree_efika()
+#endif
+
 static void __init fixup_device_tree(void)
 {
         fixup_device_tree_maple();
         fixup_device_tree_chrp();
         fixup_device_tree_pmac();
+        fixup_device_tree_efika();
 }
 
 static void __init prom_find_boot_cpu(void)
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 2fe82abf1c52..6cbf2ae5d7aa 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -160,7 +160,7 @@ static int sensors_open(struct inode *inode, struct file *file)
         return single_open(file, ppc_rtas_sensors_show, NULL);
 }
 
-struct file_operations ppc_rtas_sensors_operations = {
+const struct file_operations ppc_rtas_sensors_operations = {
         .open           = sensors_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
@@ -172,7 +172,7 @@ static int poweron_open(struct inode *inode, struct file *file)
         return single_open(file, ppc_rtas_poweron_show, NULL);
 }
 
-struct file_operations ppc_rtas_poweron_operations = {
+const struct file_operations ppc_rtas_poweron_operations = {
         .open           = poweron_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
@@ -185,7 +185,7 @@ static int progress_open(struct inode *inode, struct file *file)
         return single_open(file, ppc_rtas_progress_show, NULL);
 }
 
-struct file_operations ppc_rtas_progress_operations = {
+const struct file_operations ppc_rtas_progress_operations = {
         .open           = progress_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
@@ -198,7 +198,7 @@ static int clock_open(struct inode *inode, struct file *file)
         return single_open(file, ppc_rtas_clock_show, NULL);
 }
 
-struct file_operations ppc_rtas_clock_operations = {
+const struct file_operations ppc_rtas_clock_operations = {
         .open           = clock_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
@@ -211,7 +211,7 @@ static int tone_freq_open(struct inode *inode, struct file *file)
         return single_open(file, ppc_rtas_tone_freq_show, NULL);
 }
 
-struct file_operations ppc_rtas_tone_freq_operations = {
+const struct file_operations ppc_rtas_tone_freq_operations = {
         .open           = tone_freq_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
@@ -224,7 +224,7 @@ static int tone_volume_open(struct inode *inode, struct file *file)
         return single_open(file, ppc_rtas_tone_volume_show, NULL);
 }
 
-struct file_operations ppc_rtas_tone_volume_operations = {
+const struct file_operations ppc_rtas_tone_volume_operations = {
         .open           = tone_volume_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
@@ -237,7 +237,7 @@ static int rmo_buf_open(struct inode *inode, struct file *file)
         return single_open(file, ppc_rtas_rmo_buf_show, NULL);
 }
 
-struct file_operations ppc_rtas_rmo_buf_ops = {
+const struct file_operations ppc_rtas_rmo_buf_ops = {
         .open           = rmo_buf_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index 0c4fcd34bfe5..f72118c0844f 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -702,13 +702,12 @@ static int initialize_flash_pde_data(const char *rtas_call_name,
 }
 
 static struct proc_dir_entry *create_flash_pde(const char *filename,
-                                               struct file_operations *fops)
+                                               const struct file_operations *fops)
 {
         struct proc_dir_entry *ent = NULL;
 
         ent = create_proc_entry(filename, S_IRUSR | S_IWUSR, NULL);
         if (ent != NULL) {
-                ent->nlink = 1;
                 ent->proc_fops = fops;
                 ent->owner = THIS_MODULE;
         }
@@ -716,21 +715,21 @@ static struct proc_dir_entry *create_flash_pde(const char *filename,
         return ent;
 }
 
-static struct file_operations rtas_flash_operations = {
+static const struct file_operations rtas_flash_operations = {
         .read           = rtas_flash_read,
         .write          = rtas_flash_write,
         .open           = rtas_excl_open,
         .release        = rtas_flash_release,
 };
 
-static struct file_operations manage_flash_operations = {
+static const struct file_operations manage_flash_operations = {
         .read           = manage_flash_read,
         .write          = manage_flash_write,
         .open           = rtas_excl_open,
         .release        = rtas_excl_release,
 };
 
-static struct file_operations validate_flash_operations = {
+static const struct file_operations validate_flash_operations = {
         .read           = validate_flash_read,
         .write          = validate_flash_write,
         .open           = rtas_excl_open,
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index 03a2a2f30d66..673e8d9df7f5 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -198,73 +198,6 @@ static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
                  __put_user(i->tv_usec, &o->tv_usec)));
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-        unsigned short pad;
-        u32 totalhigh;
-        u32 freehigh;
-        u32 mem_unit;
-        char _f[20-2*sizeof(int)-sizeof(int)];
-};
-
-asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info)
-{
-        struct sysinfo s;
-        int ret, err;
-        int bitcount=0;
-        mm_segment_t old_fs = get_fs ();
-        
-        /* The __user cast is valid due to set_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;
-        }
-
-        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;
-}
-
 
 
 
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
index 8f5afdbad0d5..194a93eeb3e7 100644
--- a/arch/powerpc/kernel/udbg.c
+++ b/arch/powerpc/kernel/udbg.c
@@ -150,7 +150,7 @@ void __init disable_early_printk(void)
 {
         if (!early_console_initialized)
                 return;
-        if (strstr(saved_command_line, "udbg-immortal")) {
+        if (strstr(boot_command_line, "udbg-immortal")) {
                 printk(KERN_INFO "early console immortal !\n");
                 return;
         }
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index ae0ede19879d..e46c31b36641 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -51,17 +51,21 @@
 
 extern char vdso32_start, vdso32_end;
 static void *vdso32_kbase = &vdso32_start;
-unsigned int vdso32_pages;
+static unsigned int vdso32_pages;
+static struct page **vdso32_pagelist;
 unsigned long vdso32_sigtramp;
 unsigned long vdso32_rt_sigtramp;
 
 #ifdef CONFIG_PPC64
 extern char vdso64_start, vdso64_end;
 static void *vdso64_kbase = &vdso64_start;
-unsigned int vdso64_pages;
+static unsigned int vdso64_pages;
+static struct page **vdso64_pagelist;
 unsigned long vdso64_rt_sigtramp;
 #endif /* CONFIG_PPC64 */
 
+static int vdso_ready;
+
 /*
  * The vdso data page (aka. systemcfg for old ppc64 fans) is here.
  * Once the early boot kernel code no longer needs to muck around
@@ -165,55 +169,6 @@ static void dump_vdso_pages(struct vm_area_struct * vma)
 #endif /* DEBUG */
 
 /*
- * Keep a dummy vma_close for now, it will prevent VMA merging.
- */
-static void vdso_vma_close(struct vm_area_struct * vma)
-{
-}
-
-/*
- * Our nopage() function, maps in the actual vDSO kernel pages, they will
- * be mapped read-only by do_no_page(), and eventually COW'ed, either
- * right away for an initial write access, or by do_wp_page().
- */
-static struct page * vdso_vma_nopage(struct vm_area_struct * vma,
-                                     unsigned long address, int *type)
-{
-        unsigned long offset = address - vma->vm_start;
-        struct page *pg;
-#ifdef CONFIG_PPC64
-        void *vbase = (vma->vm_mm->task_size > TASK_SIZE_USER32) ?
-                vdso64_kbase : vdso32_kbase;
-#else
-        void *vbase = vdso32_kbase;
-#endif
-
-        DBG("vdso_vma_nopage(current: %s, address: %016lx, off: %lx)\n",
-            current->comm, address, offset);
-
-        if (address < vma->vm_start || address > vma->vm_end)
-                return NOPAGE_SIGBUS;
-
-        /*
-         * Last page is systemcfg.
-         */
-        if ((vma->vm_end - address) <= PAGE_SIZE)
-                pg = virt_to_page(vdso_data);
-        else
-                pg = virt_to_page(vbase + offset);
-
-        get_page(pg);
-        DBG(" ->page count: %d\n", page_count(pg));
-
-        return pg;
-}
-
-static struct vm_operations_struct vdso_vmops = {
-        .close  = vdso_vma_close,
-        .nopage = vdso_vma_nopage,
-};
-
-/*
  * This is called from binfmt_elf, we create the special vma for the
  * vDSO and insert it into the mm struct tree
  */
@@ -221,20 +176,26 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
                                 int executable_stack)
 {
         struct mm_struct *mm = current->mm;
-        struct vm_area_struct *vma;
+        struct page **vdso_pagelist;
         unsigned long vdso_pages;
         unsigned long vdso_base;
         int rc;
 
+        if (!vdso_ready)
+                return 0;
+
 #ifdef CONFIG_PPC64
         if (test_thread_flag(TIF_32BIT)) {
+                vdso_pagelist = vdso32_pagelist;
                 vdso_pages = vdso32_pages;
                 vdso_base = VDSO32_MBASE;
         } else {
+                vdso_pagelist = vdso64_pagelist;
                 vdso_pages = vdso64_pages;
                 vdso_base = VDSO64_MBASE;
         }
 #else
+        vdso_pagelist = vdso32_pagelist;
         vdso_pages = vdso32_pages;
         vdso_base = VDSO32_MBASE;
 #endif
@@ -262,17 +223,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
                 goto fail_mmapsem;
         }
 
-
-        /* Allocate a VMA structure and fill it up */
-        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-        if (vma == NULL) {
-                rc = -ENOMEM;
-                goto fail_mmapsem;
-        }
-        vma->vm_mm = mm;
-        vma->vm_start = vdso_base;
-        vma->vm_end = vma->vm_start + (vdso_pages << PAGE_SHIFT);
-
         /*
          * our vma flags don't have VM_WRITE so by default, the process isn't
          * allowed to write those pages.
@@ -282,32 +232,26 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
          * and your nice userland gettimeofday will be totally dead.
          * It's fine to use that for setting breakpoints in the vDSO code
          * pages though
-         */
-        vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC;
-        /*
+         *
          * Make sure the vDSO gets into every core dump.
          * Dumping its contents makes post-mortem fully interpretable later
          * without matching up the same kernel and hardware config to see
          * what PC values meant.
          */
-        vma->vm_flags |= VM_ALWAYSDUMP;
-        vma->vm_flags |= mm->def_flags;
-        vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
-        vma->vm_ops = &vdso_vmops;
-
-        /* Insert new VMA */
-        rc = insert_vm_struct(mm, vma);
+        rc = install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
+                                     VM_READ|VM_EXEC|
+                                     VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
+                                     VM_ALWAYSDUMP,
+                                     vdso_pagelist);
         if (rc)
-                goto fail_vma;
+                goto fail_mmapsem;
 
-        /* Put vDSO base into mm struct and account for memory usage */
+        /* Put vDSO base into mm struct */
         current->mm->context.vdso_base = vdso_base;
-        mm->total_vm += (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+
         up_write(&mm->mmap_sem);
         return 0;
 
- fail_vma:
-        kmem_cache_free(vm_area_cachep, vma);
  fail_mmapsem:
         up_write(&mm->mmap_sem);
         return rc;
@@ -719,7 +663,7 @@ static void __init vdso_setup_syscall_map(void)
 }
 
 
-void __init vdso_init(void)
+static int __init vdso_init(void)
 {
         int i;
 
@@ -774,26 +718,44 @@ void __init vdso_init(void)
 #ifdef CONFIG_PPC64
                 vdso64_pages = 0;
 #endif
-                return;
+                return 0;
         }
 
         /* Make sure pages are in the correct state */
+        vdso32_pagelist = kzalloc(sizeof(struct page *) * (vdso32_pages + 2),
+                                  GFP_KERNEL);
+        BUG_ON(vdso32_pagelist == NULL);
         for (i = 0; i < vdso32_pages; i++) {
                 struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
                 ClearPageReserved(pg);
                 get_page(pg);
-
+                vdso32_pagelist[i] = pg;
         }
+        vdso32_pagelist[i++] = virt_to_page(vdso_data);
+        vdso32_pagelist[i] = NULL;
+
 #ifdef CONFIG_PPC64
+        vdso64_pagelist = kzalloc(sizeof(struct page *) * (vdso64_pages + 2),
+                                  GFP_KERNEL);
+        BUG_ON(vdso64_pagelist == NULL);
         for (i = 0; i < vdso64_pages; i++) {
                 struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
                 ClearPageReserved(pg);
                 get_page(pg);
+                vdso64_pagelist[i] = pg;
         }
+        vdso64_pagelist[i++] = virt_to_page(vdso_data);
+        vdso64_pagelist[i] = NULL;
 #endif /* CONFIG_PPC64 */
 
         get_page(virt_to_page(vdso_data));
+
+        smp_wmb();
+        vdso_ready = 1;
+
+        return 0;
 }
+arch_initcall(vdso_init);
 
 int in_gate_area_no_task(unsigned long addr)
 {
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 04b8e71bf5b0..7eefeb4a30e7 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -131,14 +131,14 @@ SECTIONS
                 __stop___fw_ftr_fixup = .;
         }
 #endif
-
+#ifdef CONFIG_BLK_DEV_INITRD
         . = ALIGN(PAGE_SIZE);
         .init.ramfs : {
                 __initramfs_start = .;
                 *(.init.ramfs)
                 __initramfs_end = .;
         }
-
+#endif
 #ifdef CONFIG_PPC32
         . = ALIGN(32);
 #else