Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (156 commits)
  [PATCH] x86-64: Export smp_call_function_single
  [PATCH] i386: Clean up smp_tune_scheduling()
  [PATCH] unwinder: move .eh_frame to RODATA
  [PATCH] unwinder: fully support linker generated .eh_frame_hdr section
  [PATCH] x86-64: don't use set_irq_regs()
  [PATCH] x86-64: check vector in setup_ioapic_dest to verify if need setup_IO_APIC_irq
  [PATCH] x86-64: Make ix86 default to HIGHMEM4G instead of NOHIGHMEM
  [PATCH] i386: replace kmalloc+memset with kzalloc
  [PATCH] x86-64: remove remaining pc98 code
  [PATCH] x86-64: remove unused variable
  [PATCH] x86-64: Fix constraints in atomic_add_return()
  [PATCH] x86-64: fix asm constraints in i386 atomic_add_return
  [PATCH] x86-64: Correct documentation for bzImage protocol v2.05
  [PATCH] x86-64: replace kmalloc+memset with kzalloc in MTRR code
  [PATCH] x86-64: Fix numaq build error
  [PATCH] x86-64: include/asm-x86_64/cpufeature.h isn't a userspace header
  [PATCH] unwinder: Add debugging output to the Dwarf2 unwinder
  [PATCH] x86-64: Clarify error message in GART code
  [PATCH] x86-64: Fix interrupt race in idle callback (3rd try)
  [PATCH] x86-64: Remove unwind stack pointer alignment forcing again
  ...

Fixed conflict in include/linux/uaccess.h manually

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

6 files changed, 30 insertions, 18 deletions

diff --git a/arch/i386/mm/boot_ioremap.c b/arch/i386/mm/boot_ioremap.c
index 4de11f508c3a..4de95a17a7d4 100644
--- a/arch/i386/mm/boot_ioremap.c
+++ b/arch/i386/mm/boot_ioremap.c
@@ -16,6 +16,7 @@
  */
 
 #undef CONFIG_X86_PAE
+#undef CONFIG_PARAVIRT
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
diff --git a/arch/i386/mm/discontig.c b/arch/i386/mm/discontig.c
index ddbdb0336f28..103b76e56a94 100644
--- a/arch/i386/mm/discontig.c
+++ b/arch/i386/mm/discontig.c
@@ -168,7 +168,7 @@ static void __init allocate_pgdat(int nid)
         if (nid && node_has_online_mem(nid))
                 NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid];
         else {
-                NODE_DATA(nid) = (pg_data_t *)(__va(min_low_pfn << PAGE_SHIFT));
+                NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(min_low_pfn));
                 min_low_pfn += PFN_UP(sizeof(pg_data_t));
         }
 }
diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c
index 2581575786c1..aaaa4d225f7e 100644
--- a/arch/i386/mm/fault.c
+++ b/arch/i386/mm/fault.c
@@ -22,9 +22,9 @@
 #include <linux/highmem.h>
 #include <linux/module.h>
 #include <linux/kprobes.h>
+#include <linux/uaccess.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
 #include <asm/desc.h>
 #include <asm/kdebug.h>
 #include <asm/segment.h>
@@ -167,7 +167,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 static int __is_prefetch(struct pt_regs *regs, unsigned long addr)
 { 
         unsigned long limit;
-        unsigned long instr = get_segment_eip (regs, &limit);
+        unsigned char *instr = (unsigned char *)get_segment_eip (regs, &limit);
         int scan_more = 1;
         int prefetch = 0; 
         int i;
@@ -177,9 +177,9 @@ static int __is_prefetch(struct pt_regs *regs, unsigned long addr)
                 unsigned char instr_hi;
                 unsigned char instr_lo;
 
-                if (instr > limit)
+                if (instr > (unsigned char *)limit)
                         break;
-                if (__get_user(opcode, (unsigned char __user *) instr))
+                if (probe_kernel_address(instr, opcode))
                         break; 
 
                 instr_hi = opcode & 0xf0; 
@@ -204,9 +204,9 @@ static int __is_prefetch(struct pt_regs *regs, unsigned long addr)
                 case 0x00:
                         /* Prefetch instruction is 0x0F0D or 0x0F18 */
                         scan_more = 0;
-                        if (instr > limit)
+                        if (instr > (unsigned char *)limit)
                                 break;
-                        if (__get_user(opcode, (unsigned char __user *) instr))
+                        if (probe_kernel_address(instr, opcode))
                                 break;
                         prefetch = (instr_lo == 0xF) &&
                                 (opcode == 0x0D || opcode == 0x18);
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index a6a8e397dd88..84697dfc7348 100644
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -192,8 +192,6 @@ static inline int page_kills_ppro(unsigned long pagenr)
         return 0;
 }
 
-extern int is_available_memory(efi_memory_desc_t *);
-
 int page_is_ram(unsigned long pagenr)
 {
         int i;
diff --git a/arch/i386/mm/pageattr.c b/arch/i386/mm/pageattr.c
index 8564b6ae17e3..ad91528bdc14 100644
--- a/arch/i386/mm/pageattr.c
+++ b/arch/i386/mm/pageattr.c
@@ -67,11 +67,17 @@ static struct page *split_large_page(unsigned long address, pgprot_t prot,
         return base;
 } 
 
-static void flush_kernel_map(void *dummy) 
+static void flush_kernel_map(void *arg)
 { 
-        /* Could use CLFLUSH here if the CPU supports it (Hammer,P4) */
-        if (boot_cpu_data.x86_model >= 4) 
+        unsigned long adr = (unsigned long)arg;
+
+        if (adr && cpu_has_clflush) {
+                int i;
+                for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
+                        asm volatile("clflush (%0)" :: "r" (adr + i));
+        } else if (boot_cpu_data.x86_model >= 4)
                 wbinvd();
+
         /* Flush all to work around Errata in early athlons regarding 
          * large page flushing. 
          */
@@ -173,9 +179,9 @@ __change_page_attr(struct page *page, pgprot_t prot)
         return 0;
 } 
 
-static inline void flush_map(void)
+static inline void flush_map(void *adr)
 {
-        on_each_cpu(flush_kernel_map, NULL, 1, 1);
+        on_each_cpu(flush_kernel_map, adr, 1, 1);
 }
 
 /*
@@ -217,9 +223,13 @@ void global_flush_tlb(void)
         spin_lock_irq(&cpa_lock);
         list_replace_init(&df_list, &l);
         spin_unlock_irq(&cpa_lock);
-        flush_map();
-        list_for_each_entry_safe(pg, next, &l, lru)
+        if (!cpu_has_clflush)
+                flush_map(0);
+        list_for_each_entry_safe(pg, next, &l, lru) {
+                if (cpu_has_clflush)
+                        flush_map(page_address(pg));
                 __free_page(pg);
+        }
 }
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
diff --git a/arch/i386/mm/pgtable.c b/arch/i386/mm/pgtable.c
index 33be236fc6af..f349eaf450b0 100644
--- a/arch/i386/mm/pgtable.c
+++ b/arch/i386/mm/pgtable.c
@@ -95,8 +95,11 @@ static void set_pte_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
                 return;
         }
         pte = pte_offset_kernel(pmd, vaddr);
-        /* <pfn,flags> stored as-is, to permit clearing entries */
-        set_pte(pte, pfn_pte(pfn, flags));
+        if (pgprot_val(flags))
+                /* <pfn,flags> stored as-is, to permit clearing entries */
+                set_pte(pte, pfn_pte(pfn, flags));
+        else
+                pte_clear(&init_mm, vaddr, pte);
 
         /*
          * It's enough to flush this one mapping.