dyn_array: split dyn_array functions from init/main.c
Yinghai Lu [Wed, 20 Aug 2008 03:50:54 +0000 (20:50 -0700)]
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

init/Makefile
init/dyn_array.c [new file with mode: 0644]
init/main.c

index 4a243df..dc5eeca 100644 (file)
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-obj-y                          := main.o version.o mounts.o
+obj-y                          := main.o dyn_array.o version.o mounts.o
 ifneq ($(CONFIG_BLK_DEV_INITRD),y)
 obj-y                          += noinitramfs.o
 else
diff --git a/init/dyn_array.c b/init/dyn_array.c
new file mode 100644 (file)
index 0000000..c4cd902
--- /dev/null
@@ -0,0 +1,124 @@
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/kallsyms.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/irq.h>
+
+void __init pre_alloc_dyn_array(void)
+{
+#ifdef CONFIG_HAVE_DYN_ARRAY
+       unsigned long total_size = 0, size, phys;
+       unsigned long max_align = 1;
+       struct dyn_array **daa;
+       char *ptr;
+
+       /* get the total size at first */
+       for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) {
+               struct dyn_array *da = *daa;
+
+               size = da->size * (*da->nr);
+               print_fn_descriptor_symbol("dyn_array %s ", da->name);
+               printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n",
+                       da->size, *da->nr, da->align);
+               total_size += roundup(size, da->align);
+               if (da->align > max_align)
+                       max_align = da->align;
+       }
+       if (total_size)
+               printk(KERN_DEBUG "dyn_array total_size: %#lx\n",
+                        total_size);
+       else
+               return;
+
+       /* allocate them all together */
+       max_align = max_t(unsigned long, max_align, PAGE_SIZE);
+       ptr = __alloc_bootmem_nopanic(total_size, max_align, 0);
+       if (!ptr)
+               panic("Can not alloc dyn_alloc\n");
+
+       phys = virt_to_phys(ptr);
+       for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) {
+               struct dyn_array *da = *daa;
+
+               size = da->size * (*da->nr);
+               print_fn_descriptor_symbol("dyn_array %s ", da->name);
+
+               phys = roundup(phys, da->align);
+               *da->name = phys_to_virt(phys);
+               printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size);
+
+               phys += size;
+
+               if (da->init_work)
+                       da->init_work(da);
+       }
+#else
+#ifdef CONFIF_GENERIC_HARDIRQS
+       unsigned int i;
+
+       for (i = 0; i < NR_IRQS; i++)
+               irq_desc[i].irq = i;
+#endif
+#endif
+}
+
+unsigned long __init per_cpu_dyn_array_size(unsigned long *align)
+{
+       unsigned long total_size = 0;
+#ifdef CONFIG_HAVE_DYN_ARRAY
+       unsigned long size;
+       struct dyn_array **daa;
+       unsigned max_align = 1;
+
+       for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) {
+               struct dyn_array *da = *daa;
+
+               size = da->size * (*da->nr);
+               print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name);
+               printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n",
+                       da->size, *da->nr, da->align);
+               total_size += roundup(size, da->align);
+               if (da->align > max_align)
+                       max_align = da->align;
+       }
+       if (total_size) {
+               printk(KERN_DEBUG "per_cpu_dyn_array total_size: %#lx\n",
+                        total_size);
+               *align = max_align;
+       }
+#endif
+       return total_size;
+}
+
+void __init per_cpu_alloc_dyn_array(int cpu, char *ptr)
+{
+#ifdef CONFIG_HAVE_DYN_ARRAY
+       unsigned long size, phys;
+       struct dyn_array **daa;
+       unsigned long addr;
+       void **array;
+
+       phys = virt_to_phys(ptr);
+       for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) {
+               struct dyn_array *da = *daa;
+
+               size = da->size * (*da->nr);
+               print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name);
+
+               phys = roundup(phys, da->align);
+               addr = (unsigned long)da->name;
+               addr += per_cpu_offset(cpu);
+               array = (void **)addr;
+               *array = phys_to_virt(phys);
+               *da->name = *array; /* so init_work could use it directly */
+               printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size);
+
+               phys += size;
+
+               if (da->init_work) {
+                       da->init_work(da);
+               }
+       }
+#endif
+}
index 0d2e601..e81cf42 100644 (file)
@@ -542,124 +542,6 @@ void __init __weak thread_info_cache_init(void)
 {
 }
 
-void pre_alloc_dyn_array(void)
-{
-#ifdef CONFIG_HAVE_DYN_ARRAY
-       unsigned long total_size = 0, size, phys;
-       unsigned long max_align = 1;
-       struct dyn_array **daa;
-       char *ptr;
-
-       /* get the total size at first */
-       for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) {
-               struct dyn_array *da = *daa;
-
-               size = da->size * (*da->nr);
-               print_fn_descriptor_symbol("dyn_array %s ", da->name);
-               printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n",
-                       da->size, *da->nr, da->align);
-               total_size += roundup(size, da->align);
-               if (da->align > max_align)
-                       max_align = da->align;
-       }
-       if (total_size)
-               printk(KERN_DEBUG "dyn_array total_size: %#lx\n",
-                        total_size);
-       else
-               return;
-
-       /* allocate them all together */
-       max_align = max_t(unsigned long, max_align, PAGE_SIZE);
-       ptr = __alloc_bootmem_nopanic(total_size, max_align, 0);
-       if (!ptr)
-               panic("Can not alloc dyn_alloc\n");
-
-       phys = virt_to_phys(ptr);
-       for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) {
-               struct dyn_array *da = *daa;
-
-               size = da->size * (*da->nr);
-               print_fn_descriptor_symbol("dyn_array %s ", da->name);
-
-               phys = roundup(phys, da->align);
-               *da->name = phys_to_virt(phys);
-               printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size);
-
-               phys += size;
-
-               if (da->init_work)
-                       da->init_work(da);
-       }
-#else
-#ifdef CONFIF_GENERIC_HARDIRQS
-       unsigned int i;
-
-       for (i = 0; i < NR_IRQS; i++)
-               irq_desc[i].irq = i;
-#endif
-#endif
-}
-
-unsigned long per_cpu_dyn_array_size(unsigned long *align)
-{
-       unsigned long total_size = 0;
-#ifdef CONFIG_HAVE_DYN_ARRAY
-       unsigned long size;
-       struct dyn_array **daa;
-       unsigned max_align = 1;
-
-       for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) {
-               struct dyn_array *da = *daa;
-
-               size = da->size * (*da->nr);
-               print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name);
-               printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n",
-                       da->size, *da->nr, da->align);
-               total_size += roundup(size, da->align);
-               if (da->align > max_align)
-                       max_align = da->align;
-       }
-       if (total_size) {
-               printk(KERN_DEBUG "per_cpu_dyn_array total_size: %#lx\n",
-                        total_size);
-               *align = max_align;
-       }
-#endif
-       return total_size;
-}
-
-void per_cpu_alloc_dyn_array(int cpu, char *ptr)
-{
-#ifdef CONFIG_HAVE_DYN_ARRAY
-       unsigned long size, phys;
-       struct dyn_array **daa;
-       unsigned long addr;
-       void **array;
-
-       phys = virt_to_phys(ptr);
-       for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) {
-               struct dyn_array *da = *daa;
-
-               size = da->size * (*da->nr);
-               print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name);
-
-               phys = roundup(phys, da->align);
-               addr = (unsigned long)da->name;
-               addr += per_cpu_offset(cpu);
-               array = (void **)addr;
-               *array = phys_to_virt(phys);
-               *da->name = *array; /* so init_work could use it directly */
-               printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size);
-
-               phys += size;
-
-               if (da->init_work) {
-                       da->init_work(da);
-               }
-       }
-#endif
-}
-
 asmlinkage void __init start_kernel(void)
 {
        char * command_line;