Merge branch 'akpm' (incoming from Andrew)

Merge second patch-bomb from Andrew Morton:
 - various misc bits
 - the rest of MM
 - add generic fixmap.h, use it
 - backlight updates
 - dynamic_debug updates
 - printk() updates
 - checkpatch updates
 - binfmt_elf
 - ramfs
 - init/
 - autofs4
 - drivers/rtc
 - nilfs
 - hfsplus
 - Documentation/
 - coredump
 - procfs
 - fork
 - exec
 - kexec
 - kdump
 - partitions
 - rapidio
 - rbtree
 - userns
 - memstick
 - w1
 - decompressors

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (197 commits)
  lib/decompress_unlz4.c: always set an error return code on failures
  romfs: fix returm err while getting inode in fill_super
  drivers/w1/masters/w1-gpio.c: add strong pullup emulation
  drivers/memstick/host/rtsx_pci_ms.c: fix ms card data transfer bug
  userns: relax the posix_acl_valid() checks
  arch/sh/kernel/dwarf.c: use rbtree postorder iteration helper instead of solution using repeated rb_erase()
  fs-ext3-use-rbtree-postorder-iteration-helper-instead-of-opencoding-fix
  fs/ext3: use rbtree postorder iteration helper instead of opencoding
  fs/jffs2: use rbtree postorder iteration helper instead of opencoding
  fs/ext4: use rbtree postorder iteration helper instead of opencoding
  fs/ubifs: use rbtree postorder iteration helper instead of opencoding
  net/netfilter/ipset/ip_set_hash_netiface.c: use rbtree postorder iteration instead of opencoding
  rbtree/test: test rbtree_postorder_for_each_entry_safe()
  rbtree/test: move rb_node to the middle of the test struct
  rapidio: add modular rapidio core build into powerpc and mips branches
  partitions/efi: complete documentation of gpt kernel param purpose
  kdump: add /sys/kernel/vmcoreinfo ABI documentation
  kdump: fix exported size of vmcoreinfo note
  kexec: add sysctl to disable kexec_load
  fs/exec.c: call arch_pick_mmap_layout() only once
  ...

4 files changed, 14 insertions, 68 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d3b9186e4c23..3e97a3dd4129 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -279,13 +279,13 @@ config SMP
         bool "Symmetric multi-processing support"
         ---help---
           This enables support for systems with more than one CPU. If you have
-          a system with only one CPU, like most personal computers, say N. If
-          you have a system with more than one CPU, say Y.
+          a system with only one CPU, say N. If you have a system with more
+          than one CPU, say Y.
 
-          If you say N here, the kernel will run on single and multiprocessor
+          If you say N here, the kernel will run on uni- and multiprocessor
           machines, but will use only one CPU of a multiprocessor machine. If
           you say Y here, the kernel will run on many, but not all,
-          singleprocessor machines. On a singleprocessor machine, the kernel
+          uniprocessor machines. On a uniprocessor machine, the kernel
           will run faster if you say N here.
 
           Note that if you say Y here and choose architecture "586" or
@@ -731,6 +731,7 @@ config APB_TIMER
 # The code disables itself when not needed.
 config DMI
         default y
+        select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
         bool "Enable DMI scanning" if EXPERT
         ---help---
           Enabled scanning of DMI to identify machine quirks. Say Y
diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h
index fd8f9e2ca35f..535192f6bfad 100644
--- a/arch/x86/include/asm/dmi.h
+++ b/arch/x86/include/asm/dmi.h
@@ -13,7 +13,9 @@ static __always_inline __init void *dmi_alloc(unsigned len)
 }
 
 /* Use early IO mappings for DMI because it's initialized early */
-#define dmi_ioremap early_ioremap
-#define dmi_iounmap early_iounmap
+#define dmi_early_remap         early_ioremap
+#define dmi_early_unmap         early_iounmap
+#define dmi_remap               ioremap
+#define dmi_unmap               iounmap
 
 #endif /* _ASM_X86_DMI_H */
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index e846225265ed..7252cd339175 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -175,64 +175,7 @@ static inline void __set_fixmap(enum fixed_addresses idx,
 }
 #endif
 
-#define set_fixmap(idx, phys)                           \
-        __set_fixmap(idx, phys, PAGE_KERNEL)
-
-/*
- * Some hardware wants to get fixmapped without caching.
- */
-#define set_fixmap_nocache(idx, phys)                   \
-        __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
-
-#define clear_fixmap(idx)                       \
-        __set_fixmap(idx, 0, __pgprot(0))
-
-#define __fix_to_virt(x)        (FIXADDR_TOP - ((x) << PAGE_SHIFT))
-#define __virt_to_fix(x)        ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
-
-extern void __this_fixmap_does_not_exist(void);
-
-/*
- * 'index to address' translation. If anyone tries to use the idx
- * directly without translation, we catch the bug with a NULL-deference
- * kernel oops. Illegal ranges of incoming indices are caught too.
- */
-static __always_inline unsigned long fix_to_virt(const unsigned int idx)
-{
-        /*
-         * this branch gets completely eliminated after inlining,
-         * except when someone tries to use fixaddr indices in an
-         * illegal way. (such as mixing up address types or using
-         * out-of-range indices).
-         *
-         * If it doesn't get removed, the linker will complain
-         * loudly with a reasonably clear error message..
-         */
-        if (idx >= __end_of_fixed_addresses)
-                __this_fixmap_does_not_exist();
-
-        return __fix_to_virt(idx);
-}
-
-static inline unsigned long virt_to_fix(const unsigned long vaddr)
-{
-        BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
-        return __virt_to_fix(vaddr);
-}
-
-/* Return an pointer with offset calculated */
-static __always_inline unsigned long
-__set_fixmap_offset(enum fixed_addresses idx, phys_addr_t phys, pgprot_t flags)
-{
-        __set_fixmap(idx, phys, flags);
-        return fix_to_virt(idx) + (phys & (PAGE_SIZE - 1));
-}
-
-#define set_fixmap_offset(idx, phys)                    \
-        __set_fixmap_offset(idx, phys, PAGE_KERNEL)
-
-#define set_fixmap_offset_nocache(idx, phys)                    \
-        __set_fixmap_offset(idx, phys, PAGE_KERNEL_NOCACHE)
+#include <asm-generic/fixmap.h>
 
 #endif /* !__ASSEMBLY__ */
 #endif /* _ASM_X86_FIXMAP_H */
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index 0596e8e0cc19..207d9aef662d 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -108,8 +108,8 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,
 
 static inline void get_head_page_multiple(struct page *page, int nr)
 {
-        VM_BUG_ON(page != compound_head(page));
-        VM_BUG_ON(page_count(page) == 0);
+        VM_BUG_ON_PAGE(page != compound_head(page), page);
+        VM_BUG_ON_PAGE(page_count(page) == 0, page);
         atomic_add(nr, &page->_count);
         SetPageReferenced(page);
 }
@@ -135,7 +135,7 @@ static noinline int gup_huge_pmd(pmd_t pmd, unsigned long addr,
         head = pte_page(pte);
         page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
         do {
-                VM_BUG_ON(compound_head(page) != head);
+                VM_BUG_ON_PAGE(compound_head(page) != head, page);
                 pages[*nr] = page;
                 if (PageTail(page))
                         get_huge_page_tail(page);
@@ -212,7 +212,7 @@ static noinline int gup_huge_pud(pud_t pud, unsigned long addr,
         head = pte_page(pte);
         page = head + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
         do {
-                VM_BUG_ON(compound_head(page) != head);
+                VM_BUG_ON_PAGE(compound_head(page) != head, page);
                 pages[*nr] = page;
                 if (PageTail(page))
                         get_huge_page_tail(page);