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
  ...

3 files changed, 10 insertions, 55 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ce298317a73e..6357710753d5 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -701,13 +701,13 @@ config SMP
         depends on SYS_SUPPORTS_SMP
         ---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.
 
           People using multiprocessor machines who say Y here should also say
diff --git a/arch/sh/include/asm/fixmap.h b/arch/sh/include/asm/fixmap.h
index cbe0186b6794..4daf91c3b725 100644
--- a/arch/sh/include/asm/fixmap.h
+++ b/arch/sh/include/asm/fixmap.h
@@ -79,13 +79,6 @@ extern void __set_fixmap(enum fixed_addresses idx,
                          unsigned long phys, pgprot_t flags);
 extern void __clear_fixmap(enum fixed_addresses idx, pgprot_t flags);
 
-#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)
 /*
  * used by vmalloc.c.
  *
@@ -101,36 +94,8 @@ extern void __clear_fixmap(enum fixed_addresses idx, pgprot_t flags);
 #define FIXADDR_SIZE    (__end_of_fixed_addresses << PAGE_SHIFT)
 #define FIXADDR_START   (FIXADDR_TOP - FIXADDR_SIZE)
 
-#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 tranlation, we catch the bug with a NULL-deference
- * kernel oops. Illegal ranges of incoming indices are caught too.
- */
-static 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();
+#define FIXMAP_PAGE_NOCACHE PAGE_KERNEL_NOCACHE
 
-        return __fix_to_virt(idx);
-}
+#include <asm-generic/fixmap.h>
 
-static inline unsigned long virt_to_fix(const unsigned long vaddr)
-{
-        BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
-        return __virt_to_fix(vaddr);
-}
 #endif
diff --git a/arch/sh/kernel/dwarf.c b/arch/sh/kernel/dwarf.c
index 49c09c7d5b77..67a049e75ec1 100644
--- a/arch/sh/kernel/dwarf.c
+++ b/arch/sh/kernel/dwarf.c
@@ -995,29 +995,19 @@ static struct unwinder dwarf_unwinder = {
 
 static void dwarf_unwinder_cleanup(void)
 {
-        struct rb_node **fde_rb_node = &fde_root.rb_node;
-        struct rb_node **cie_rb_node = &cie_root.rb_node;
+        struct dwarf_fde *fde, *next_fde;
+        struct dwarf_cie *cie, *next_cie;
 
         /*
          * Deallocate all the memory allocated for the DWARF unwinder.
          * Traverse all the FDE/CIE lists and remove and free all the
          * memory associated with those data structures.
          */
-        while (*fde_rb_node) {
-                struct dwarf_fde *fde;
-
-                fde = rb_entry(*fde_rb_node, struct dwarf_fde, node);
-                rb_erase(*fde_rb_node, &fde_root);
+        rbtree_postorder_for_each_entry_safe(fde, next_fde, &fde_root, node)
                 kfree(fde);
-        }
 
-        while (*cie_rb_node) {
-                struct dwarf_cie *cie;
-
-                cie = rb_entry(*cie_rb_node, struct dwarf_cie, node);
-                rb_erase(*cie_rb_node, &cie_root);
+        rbtree_postorder_for_each_entry_safe(cie, next_cie, &cie_root, node)
                 kfree(cie);
-        }
 
         kmem_cache_destroy(dwarf_reg_cachep);
         kmem_cache_destroy(dwarf_frame_cachep);