Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

[sfrench/cifs-2.6.git] / arch / s390 / kernel / setup.c

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index a21cfbb9d97edd97b30111bb492392fe5deb8bae..49f2b68e32b13565259f7aa7a329b4b6e8a1e575 100644 (file)
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -70,7 +70,6 @@ struct {
 #define CHUNK_READ_WRITE 0
 #define CHUNK_READ_ONLY 1
 volatile int __cpu_logical_map[NR_CPUS]; /* logical cpu to cpu address */
-unsigned long __initdata zholes_size[MAX_NR_ZONES];
 static unsigned long __initdata memory_end;
 
 /*
@@ -358,21 +357,6 @@ void machine_power_off(void)
  */
 void (*pm_power_off)(void) = machine_power_off;
 
-static void __init
-add_memory_hole(unsigned long start, unsigned long end)
-{
-       unsigned long dma_pfn = MAX_DMA_ADDRESS >> PAGE_SHIFT;
-
-       if (end <= dma_pfn)
-               zholes_size[ZONE_DMA] += end - start + 1;
-       else if (start > dma_pfn)
-               zholes_size[ZONE_NORMAL] += end - start + 1;
-       else {
-               zholes_size[ZONE_DMA] += dma_pfn - start + 1;
-               zholes_size[ZONE_NORMAL] += end - dma_pfn;
-       }
-}
-
 static int __init early_parse_mem(char *p)
 {
        memory_end = memparse(p, &p);
@@ -494,7 +478,6 @@ setup_memory(void)
 {
         unsigned long bootmap_size;
        unsigned long start_pfn, end_pfn, init_pfn;
-       unsigned long last_rw_end;
        int i;
 
        /*
@@ -543,46 +526,34 @@ setup_memory(void)
 #endif
 
        /*
-        * Initialize the boot-time allocator (with low memory only):
+        * Initialize the boot-time allocator
         */
        bootmap_size = init_bootmem(start_pfn, end_pfn);
 
        /*
         * Register RAM areas with the bootmem allocator.
         */
-       last_rw_end = start_pfn;
 
        for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) {
-               unsigned long start_chunk, end_chunk;
+               unsigned long start_chunk, end_chunk, pfn;
 
                if (memory_chunk[i].type != CHUNK_READ_WRITE)
                        continue;
-               start_chunk = (memory_chunk[i].addr + PAGE_SIZE - 1);
-               start_chunk >>= PAGE_SHIFT;
-               end_chunk = (memory_chunk[i].addr + memory_chunk[i].size);
-               end_chunk >>= PAGE_SHIFT;
-               if (start_chunk < start_pfn)
-                       start_chunk = start_pfn;
-               if (end_chunk > end_pfn)
-                       end_chunk = end_pfn;
-               if (start_chunk < end_chunk) {
-                       /* Initialize storage key for RAM pages */
-                       for (init_pfn = start_chunk ; init_pfn < end_chunk;
-                            init_pfn++)
-                               page_set_storage_key(init_pfn << PAGE_SHIFT,
-                                                    PAGE_DEFAULT_KEY);
-                       free_bootmem(start_chunk << PAGE_SHIFT,
-                                    (end_chunk - start_chunk) << PAGE_SHIFT);
-                       if (last_rw_end < start_chunk)
-                               add_memory_hole(last_rw_end, start_chunk - 1);
-                       last_rw_end = end_chunk;
-               }
+               start_chunk = PFN_DOWN(memory_chunk[i].addr);
+               end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size) - 1;
+               end_chunk = min(end_chunk, end_pfn);
+               if (start_chunk >= end_chunk)
+                       continue;
+               add_active_range(0, start_chunk, end_chunk);
+               pfn = max(start_chunk, start_pfn);
+               for (; pfn <= end_chunk; pfn++)
+                       page_set_storage_key(PFN_PHYS(pfn), PAGE_DEFAULT_KEY);
        }
 
        psw_set_key(PAGE_DEFAULT_KEY);
 
-       if (last_rw_end < end_pfn - 1)
-               add_memory_hole(last_rw_end, end_pfn - 1);
+       free_bootmem_with_active_regions(0, max_pfn);
+       reserve_bootmem(0, PFN_PHYS(start_pfn));
 
        /*
         * Reserve the bootmem bitmap itself as well. We do this in two