10 files changed, 65 insertions, 56 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 6af959c034d8..ffccefb28b6a 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -286,6 +286,8 @@ static inline int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
                 if (retval)
                         goto out;
         }
+        /* a new mm has just been created */
+        arch_dup_mmap(oldmm, mm);
         retval = 0;
 out:
         up_write(&mm->mmap_sem);
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 0133f4f9e9f0..615ce97c6cfd 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/irq.h>
+#include <linux/msi.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
@@ -185,6 +186,8 @@ int set_irq_msi(unsigned int irq, struct msi_desc *entry)
         desc = irq_desc + irq;
         spin_lock_irqsave(&desc->lock, flags);
         desc->msi_desc = entry;
+        if (entry)
+                entry->irq = irq;
         spin_unlock_irqrestore(&desc->lock, flags);
         return 0;
 }
diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index e0ffe4ab0917..559deca5ed15 100644
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -24,18 +24,18 @@ static struct subsys_attribute _name##_attr = \
 
 #if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
 /* current uevent sequence number */
-static ssize_t uevent_seqnum_show(struct subsystem *subsys, char *page)
+static ssize_t uevent_seqnum_show(struct kset *kset, char *page)
 {
         return sprintf(page, "%llu\n", (unsigned long long)uevent_seqnum);
 }
 KERNEL_ATTR_RO(uevent_seqnum);
 
 /* uevent helper program, used during early boo */
-static ssize_t uevent_helper_show(struct subsystem *subsys, char *page)
+static ssize_t uevent_helper_show(struct kset *kset, char *page)
 {
         return sprintf(page, "%s\n", uevent_helper);
 }
-static ssize_t uevent_helper_store(struct subsystem *subsys, const char *page, size_t count)
+static ssize_t uevent_helper_store(struct kset *kset, const char *page, size_t count)
 {
         if (count+1 > UEVENT_HELPER_PATH_LEN)
                 return -ENOENT;
@@ -49,13 +49,13 @@ KERNEL_ATTR_RW(uevent_helper);
 #endif
 
 #ifdef CONFIG_KEXEC
-static ssize_t kexec_loaded_show(struct subsystem *subsys, char *page)
+static ssize_t kexec_loaded_show(struct kset *kset, char *page)
 {
         return sprintf(page, "%d\n", !!kexec_image);
 }
 KERNEL_ATTR_RO(kexec_loaded);
 
-static ssize_t kexec_crash_loaded_show(struct subsystem *subsys, char *page)
+static ssize_t kexec_crash_loaded_show(struct kset *kset, char *page)
 {
         return sprintf(page, "%d\n", !!kexec_crash_image);
 }
@@ -85,7 +85,7 @@ static int __init ksysfs_init(void)
 {
         int error = subsystem_register(&kernel_subsys);
         if (!error)
-                error = sysfs_create_group(&kernel_subsys.kset.kobj,
+                error = sysfs_create_group(&kernel_subsys.kobj,
                                            &kernel_attr_group);
 
         return error;
diff --git a/kernel/module.c b/kernel/module.c
index 9da5af668a20..1eb8ca565ba0 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -45,6 +45,8 @@
 #include <asm/cacheflush.h>
 #include <linux/license.h>
 
+extern int module_sysfs_initialized;
+
 #if 0
 #define DEBUGP printk
 #else
@@ -346,10 +348,10 @@ static void *percpu_modalloc(unsigned long size, unsigned long align,
         unsigned int i;
         void *ptr;
 
-        if (align > SMP_CACHE_BYTES) {
-                printk(KERN_WARNING "%s: per-cpu alignment %li > %i\n",
-                       name, align, SMP_CACHE_BYTES);
-                align = SMP_CACHE_BYTES;
+        if (align > PAGE_SIZE) {
+                printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n",
+                       name, align, PAGE_SIZE);
+                align = PAGE_SIZE;
         }
 
         ptr = __per_cpu_start;
@@ -430,7 +432,7 @@ static int percpu_modinit(void)
         pcpu_size = kmalloc(sizeof(pcpu_size[0]) * pcpu_num_allocated,
                             GFP_KERNEL);
         /* Static in-kernel percpu data (used). */
-        pcpu_size[0] = -ALIGN(__per_cpu_end-__per_cpu_start, SMP_CACHE_BYTES);
+        pcpu_size[0] = -(__per_cpu_end-__per_cpu_start);
         /* Free room. */
         pcpu_size[1] = PERCPU_ENOUGH_ROOM + pcpu_size[0];
         if (pcpu_size[1] < 0) {
@@ -1117,8 +1119,8 @@ int mod_sysfs_init(struct module *mod)
 {
         int err;
 
-        if (!module_subsys.kset.subsys) {
-                printk(KERN_ERR "%s: module_subsys not initialized\n",
+        if (!module_sysfs_initialized) {
+                printk(KERN_ERR "%s: module sysfs not initialized\n",
                        mod->name);
                 err = -EINVAL;
                 goto out;
@@ -2385,7 +2387,7 @@ void module_add_driver(struct module *mod, struct device_driver *drv)
                 struct kobject *mkobj;
 
                 /* Lookup built-in module entry in /sys/modules */
-                mkobj = kset_find_obj(&module_subsys.kset, drv->mod_name);
+                mkobj = kset_find_obj(&module_subsys, drv->mod_name);
                 if (mkobj) {
                         mk = container_of(mkobj, struct module_kobject, kobj);
                         /* remember our module structure */
diff --git a/kernel/params.c b/kernel/params.c
index 1fc4ac746cd8..312172320b4c 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -691,6 +691,7 @@ static struct kset_uevent_ops module_uevent_ops = {
 };
 
 decl_subsys(module, &module_ktype, &module_uevent_ops);
+int module_sysfs_initialized;
 
 static struct kobj_type module_ktype = {
         .sysfs_ops =    &module_sysfs_ops,
@@ -709,6 +710,7 @@ static int __init param_sysfs_init(void)
                         __FILE__, __LINE__, ret);
                 return ret;
         }
+        module_sysfs_initialized = 1;
 
         param_sysfs_builtin();
 
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 02e4fb69111a..8df51c23bba4 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -322,13 +322,13 @@ static const char * const pm_disk_modes[] = {
  *      supports it (as determined from pm_ops->pm_disk_mode).
  */
 
-static ssize_t disk_show(struct subsystem * subsys, char * buf)
+static ssize_t disk_show(struct kset *kset, char *buf)
 {
         return sprintf(buf, "%s\n", pm_disk_modes[pm_disk_mode]);
 }
 
 
-static ssize_t disk_store(struct subsystem * s, const char * buf, size_t n)
+static ssize_t disk_store(struct kset *kset, const char *buf, size_t n)
 {
         int error = 0;
         int i;
@@ -373,13 +373,13 @@ static ssize_t disk_store(struct subsystem * s, const char * buf, size_t n)
 
 power_attr(disk);
 
-static ssize_t resume_show(struct subsystem * subsys, char *buf)
+static ssize_t resume_show(struct kset *kset, char *buf)
 {
         return sprintf(buf,"%d:%d\n", MAJOR(swsusp_resume_device),
                        MINOR(swsusp_resume_device));
 }
 
-static ssize_t resume_store(struct subsystem *subsys, const char *buf, size_t n)
+static ssize_t resume_store(struct kset *kset, const char *buf, size_t n)
 {
         unsigned int maj, min;
         dev_t res;
@@ -405,12 +405,12 @@ static ssize_t resume_store(struct subsystem *subsys, const char *buf, size_t n)
 
 power_attr(resume);
 
-static ssize_t image_size_show(struct subsystem * subsys, char *buf)
+static ssize_t image_size_show(struct kset *kset, char *buf)
 {
         return sprintf(buf, "%lu\n", image_size);
 }
 
-static ssize_t image_size_store(struct subsystem * subsys, const char * buf, size_t n)
+static ssize_t image_size_store(struct kset *kset, const char *buf, size_t n)
 {
         unsigned long size;
 
@@ -439,7 +439,7 @@ static struct attribute_group attr_group = {
 
 static int __init pm_disk_init(void)
 {
-        return sysfs_create_group(&power_subsys.kset.kobj,&attr_group);
+        return sysfs_create_group(&power_subsys.kobj, &attr_group);
 }
 
 core_initcall(pm_disk_init);
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 72419a3b1beb..b21c2a56f960 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -285,7 +285,7 @@ decl_subsys(power,NULL,NULL);
  *      proper enumerated value, and initiates a suspend transition.
  */
 
-static ssize_t state_show(struct subsystem * subsys, char * buf)
+static ssize_t state_show(struct kset *kset, char *buf)
 {
         int i;
         char * s = buf;
@@ -298,7 +298,7 @@ static ssize_t state_show(struct subsystem * subsys, char * buf)
         return (s - buf);
 }
 
-static ssize_t state_store(struct subsystem * subsys, const char * buf, size_t n)
+static ssize_t state_store(struct kset *kset, const char *buf, size_t n)
 {
         suspend_state_t state = PM_SUSPEND_STANDBY;
         const char * const *s;
@@ -325,13 +325,13 @@ power_attr(state);
 #ifdef CONFIG_PM_TRACE
 int pm_trace_enabled;
 
-static ssize_t pm_trace_show(struct subsystem * subsys, char * buf)
+static ssize_t pm_trace_show(struct kset *kset, char *buf)
 {
         return sprintf(buf, "%d\n", pm_trace_enabled);
 }
 
 static ssize_t
-pm_trace_store(struct subsystem * subsys, const char * buf, size_t n)
+pm_trace_store(struct kset *kset, const char *buf, size_t n)
 {
         int val;
 
@@ -365,7 +365,7 @@ static int __init pm_init(void)
 {
         int error = subsystem_register(&power_subsys);
         if (!error)
-                error = sysfs_create_group(&power_subsys.kset.kobj,&attr_group);
+                error = sysfs_create_group(&power_subsys.kobj,&attr_group);
         return error;
 }
 
diff --git a/kernel/power/power.h b/kernel/power/power.h
index eb461b816bf4..33bd94ceba32 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -23,6 +23,8 @@ static inline int pm_suspend_disk(void)
 }
 #endif
 
+extern int pfn_is_nosave(unsigned long);
+
 extern struct mutex pm_mutex;
 
 #define power_attr(_name) \
@@ -35,10 +37,7 @@ static struct subsys_attribute _name##_attr = {	\
         .store  = _name##_store,                \
 }
 
-extern struct subsystem power_subsys;
-
-/* References to section boundaries */
-extern const void __nosave_begin, __nosave_end;
+extern struct kset power_subsys;
 
 /* Preferred image size in bytes (default 500 MB) */
 extern unsigned long image_size;
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index fc53ad068128..704c25a3ffec 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -651,17 +651,6 @@ static inline unsigned int count_highmem_pages(void) { return 0; }
 #endif /* CONFIG_HIGHMEM */
 
 /**
- *      pfn_is_nosave - check if given pfn is in the 'nosave' section
- */
-
-static inline int pfn_is_nosave(unsigned long pfn)
-{
-        unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
-        unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT;
-        return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
-}
-
-/**
  *      saveable - Determine whether a non-highmem page should be included in
  *      the suspend image.
  *
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 3581f8f86acd..b18c155cbb60 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -33,12 +33,14 @@ extern char resume_file[];
 
 #define SWSUSP_SIG      "S1SUSPEND"
 
-static struct swsusp_header {
+struct swsusp_header {
         char reserved[PAGE_SIZE - 20 - sizeof(sector_t)];
         sector_t image;
         char    orig_sig[10];
         char    sig[10];
-} __attribute__((packed, aligned(PAGE_SIZE))) swsusp_header;
+} __attribute__((packed));
+
+static struct swsusp_header *swsusp_header;
 
 /*
  * General things
@@ -141,14 +143,14 @@ static int mark_swapfiles(sector_t start)
 {
         int error;
 
-        bio_read_page(swsusp_resume_block, &swsusp_header, NULL);
-        if (!memcmp("SWAP-SPACE",swsusp_header.sig, 10) ||
-            !memcmp("SWAPSPACE2",swsusp_header.sig, 10)) {
-                memcpy(swsusp_header.orig_sig,swsusp_header.sig, 10);
-                memcpy(swsusp_header.sig,SWSUSP_SIG, 10);
-                swsusp_header.image = start;
+        bio_read_page(swsusp_resume_block, swsusp_header, NULL);
+        if (!memcmp("SWAP-SPACE",swsusp_header->sig, 10) ||
+            !memcmp("SWAPSPACE2",swsusp_header->sig, 10)) {
+                memcpy(swsusp_header->orig_sig,swsusp_header->sig, 10);
+                memcpy(swsusp_header->sig,SWSUSP_SIG, 10);
+                swsusp_header->image = start;
                 error = bio_write_page(swsusp_resume_block,
-                                        &swsusp_header, NULL);
+                                        swsusp_header, NULL);
         } else {
                 printk(KERN_ERR "swsusp: Swap header not found!\n");
                 error = -ENODEV;
@@ -564,7 +566,7 @@ int swsusp_read(void)
         if (error < PAGE_SIZE)
                 return error < 0 ? error : -EFAULT;
         header = (struct swsusp_info *)data_of(snapshot);
-        error = get_swap_reader(&handle, swsusp_header.image);
+        error = get_swap_reader(&handle, swsusp_header->image);
         if (!error)
                 error = swap_read_page(&handle, header, NULL);
         if (!error)
@@ -591,17 +593,17 @@ int swsusp_check(void)
         resume_bdev = open_by_devnum(swsusp_resume_device, FMODE_READ);
         if (!IS_ERR(resume_bdev)) {
                 set_blocksize(resume_bdev, PAGE_SIZE);
-                memset(&swsusp_header, 0, sizeof(swsusp_header));
+                memset(swsusp_header, 0, sizeof(PAGE_SIZE));
                 error = bio_read_page(swsusp_resume_block,
-                                        &swsusp_header, NULL);
+                                        swsusp_header, NULL);
                 if (error)
                         return error;
 
-                if (!memcmp(SWSUSP_SIG, swsusp_header.sig, 10)) {
-                        memcpy(swsusp_header.sig, swsusp_header.orig_sig, 10);
+                if (!memcmp(SWSUSP_SIG, swsusp_header->sig, 10)) {
+                        memcpy(swsusp_header->sig, swsusp_header->orig_sig, 10);
                         /* Reset swap signature now */
                         error = bio_write_page(swsusp_resume_block,
-                                                &swsusp_header, NULL);
+                                                swsusp_header, NULL);
                 } else {
                         return -EINVAL;
                 }
@@ -632,3 +634,13 @@ void swsusp_close(void)
 
         blkdev_put(resume_bdev);
 }
+
+static int swsusp_header_init(void)
+{
+        swsusp_header = (struct swsusp_header*) __get_free_page(GFP_KERNEL);
+        if (!swsusp_header)
+                panic("Could not allocate memory for swsusp_header\n");
+        return 0;
+}
+
+core_initcall(swsusp_header_init);