Merge branch 'linus' into x86/mm

x86/mm is on 32-rc4 and missing the spinlock namespace changes which
are needed for further commits into this topic.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2 files changed, 25 insertions, 8 deletions

diff --git a/arch/score/mm/cache.c b/arch/score/mm/cache.c
index dbac9d9dfddd..b25e95743600 100644
--- a/arch/score/mm/cache.c
+++ b/arch/score/mm/cache.c
@@ -29,6 +29,7 @@
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/fs.h>
 
 #include <asm/mmu_context.h>
 
@@ -51,6 +52,27 @@ static void flush_data_cache_page(unsigned long addr)
         }
 }
 
+void flush_dcache_page(struct page *page)
+{
+        struct address_space *mapping = page_mapping(page);
+        unsigned long addr;
+
+        if (PageHighMem(page))
+                return;
+        if (mapping && !mapping_mapped(mapping)) {
+                set_bit(PG_dcache_dirty, &(page)->flags);
+                return;
+        }
+
+        /*
+         * We could delay the flush for the !page_mapping case too.  But that
+         * case is for exec env/arg pages and those are %99 certainly going to
+         * get faulted into the tlb (and thus flushed) anyways.
+         */
+        addr = (unsigned long) page_address(page);
+        flush_data_cache_page(addr);
+}
+
 /* called by update_mmu_cache. */
 void __update_cache(struct vm_area_struct *vma, unsigned long address,
                 pte_t pte)
@@ -63,11 +85,11 @@ void __update_cache(struct vm_area_struct *vma, unsigned long address,
         if (unlikely(!pfn_valid(pfn)))
                 return;
         page = pfn_to_page(pfn);
-        if (page_mapping(page) && test_bit(PG_arch_1, &page->flags)) {
+        if (page_mapping(page) && test_bit(PG_dcache_dirty, &(page)->flags)) {
                 addr = (unsigned long) page_address(page);
                 if (exec)
                         flush_data_cache_page(addr);
-                clear_bit(PG_arch_1, &page->flags);
+                clear_bit(PG_dcache_dirty, &(page)->flags);
         }
 }
 
diff --git a/arch/score/mm/init.c b/arch/score/mm/init.c
index f684a590c21d..7f001bbedb00 100644
--- a/arch/score/mm/init.c
+++ b/arch/score/mm/init.c
@@ -83,7 +83,6 @@ void __init mem_init(void)
         unsigned long codesize, reservedpages, datasize, initsize;
         unsigned long tmp, ram = 0;
 
-        max_mapnr = max_low_pfn;
         high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
         totalram_pages += free_all_bootmem();
         totalram_pages -= setup_zero_page();    /* Setup zeroed pages. */
@@ -101,17 +100,13 @@ void __init mem_init(void)
         datasize = (unsigned long) &_edata - (unsigned long) &_etext;
         initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
 
-        kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
-        kclist_add(&kcore_vmalloc, (void *) VMALLOC_START,
-                        VMALLOC_END - VMALLOC_START);
-
         printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
                         "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n",
                         (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
                         ram << (PAGE_SHIFT-10), codesize >> 10,
                         reservedpages << (PAGE_SHIFT-10), datasize >> 10,
                         initsize >> 10,
-                        (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)));
+                        totalhigh_pages << (PAGE_SHIFT-10));
 }
 #endif /* !CONFIG_NEED_MULTIPLE_NODES */