Merge commit 'v3.7-rc1' into stable/for-linus-3.7

* commit 'v3.7-rc1': (10892 commits)
  Linux 3.7-rc1
  x86, boot: Explicitly include autoconf.h for hostprogs
  perf: Fix UAPI fallout
  ARM: config: make sure that platforms are ordered by option string
  ARM: config: sort select statements alphanumerically
  UAPI: (Scripted) Disintegrate include/linux/byteorder
  UAPI: (Scripted) Disintegrate include/linux
  UAPI: Unexport linux/blk_types.h
  UAPI: Unexport part of linux/ppp-comp.h
  perf: Handle new rbtree implementation
  procfs: don't need a PATH_MAX allocation to hold a string representation of an int
  vfs: embed struct filename inside of names_cache allocation if possible
  audit: make audit_inode take struct filename
  vfs: make path_openat take a struct filename pointer
  vfs: turn do_path_lookup into wrapper around struct filename variant
  audit: allow audit code to satisfy getname requests from its names_list
  vfs: define struct filename and have getname() return it
  btrfs: Fix compilation with user namespace support enabled
  userns: Fix posix_acl_file_xattr_userns gid conversion
  userns: Properly print bluetooth socket uids
  ...

11 files changed, 41 insertions, 112 deletions

diff --git a/arch/xtensa/kernel/Makefile b/arch/xtensa/kernel/Makefile
index 59fc3fe1557..f36cef5a62f 100644
--- a/arch/xtensa/kernel/Makefile
+++ b/arch/xtensa/kernel/Makefile
@@ -6,7 +6,7 @@ extra-y := head.o vmlinux.lds
 
 obj-y := align.o entry.o irq.o coprocessor.o process.o ptrace.o \
 	 setup.o signal.o syscall.o time.o traps.o vectors.o platform.o  \
-	 pci-dma.o io.o
+	 pci-dma.o
 
 obj-$(CONFIG_KGDB) += xtensa-stub.o
 obj-$(CONFIG_PCI) += pci.o
@@ -24,6 +24,7 @@ obj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o
 # Replicate rules in scripts/Makefile.build
 
 sed-y = -e 's/\*(\(\.[a-z]*it\|\.ref\|\)\.text)/*(\1.literal \1.text)/g'    \
+	-e 's/\.text\.unlikely/.literal.unlikely .text.unlikely/g' \
 	-e 's/\*(\(\.text\.[a-z]*\))/*(\1.literal \1)/g'
 
 quiet_cmd__cpp_lds_S = LDS     $@
diff --git a/arch/xtensa/kernel/io.c b/arch/xtensa/kernel/io.c
deleted file mode 100644
index 5b65269b1d2..00000000000
--- a/arch/xtensa/kernel/io.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * arch/xtensa/io.c
- *
- * IO primitives
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * Copied from sparc.
- *
- * Chris Zankel <chris@zankel.net>
- *
- */
-
-#include <asm/io.h>
-#include <asm/byteorder.h>
-
-void outsb(unsigned long addr, const void *src, unsigned long count) {
-        while (count) {
-                count -= 1;
-                writeb(*(const char *)src, addr);
-                src += 1;
-                addr += 1;
-        }
-}
-
-void outsw(unsigned long addr, const void *src, unsigned long count) {
-        while (count) {
-                count -= 2;
-                writew(*(const short *)src, addr);
-                src += 2;
-                addr += 2;
-        }
-}
-
-void outsl(unsigned long addr, const void *src, unsigned long count) {
-        while (count) {
-                count -= 4;
-                writel(*(const long *)src, addr);
-                src += 4;
-                addr += 4;
-        }
-}
-
-void insb(unsigned long addr, void *dst, unsigned long count) {
-        while (count) {
-                count -= 1;
-                *(unsigned char *)dst = readb(addr);
-                dst += 1;
-                addr += 1;
-        }
-}
-
-void insw(unsigned long addr, void *dst, unsigned long count) {
-        while (count) {
-                count -= 2;
-                *(unsigned short *)dst = readw(addr);
-                dst += 2;
-                addr += 2;
-        }
-}
-
-void insl(unsigned long addr, void *dst, unsigned long count) {
-        while (count) {
-                count -= 4;
-                /*
-                 * XXX I am sure we are in for an unaligned trap here.
-                 */
-                *(unsigned long *)dst = readl(addr);
-                dst += 4;
-                addr += 4;
-        }
-}
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index 4340ee076bd..98e77c3ef1c 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -84,12 +84,12 @@ static void xtensa_irq_unmask(struct irq_data *d)
 static void xtensa_irq_enable(struct irq_data *d)
 {
 	variant_irq_enable(d->irq);
-	xtensa_irq_unmask(d->irq);
+	xtensa_irq_unmask(d);
 }
 
 static void xtensa_irq_disable(struct irq_data *d)
 {
-	xtensa_irq_mask(d->irq);
+	xtensa_irq_mask(d);
 	variant_irq_disable(d->irq);
 }
 
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 2783fda76dd..2d9cc6dbfd7 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -21,6 +21,7 @@
 #include <linux/string.h>
 #include <linux/pci.h>
 #include <linux/gfp.h>
+#include <linux/module.h>
 #include <asm/io.h>
 #include <asm/cacheflush.h>
 
@@ -62,6 +63,7 @@ dma_alloc_coherent(struct device *dev,size_t size,dma_addr_t *handle,gfp_t flag)
 
 	return (void*)uncached;
 }
+EXPORT_SYMBOL(dma_alloc_coherent);
 
 void dma_free_coherent(struct device *hwdev, size_t size,
 			 void *vaddr, dma_addr_t dma_handle)
@@ -73,6 +75,7 @@ void dma_free_coherent(struct device *hwdev, size_t size,
 
 	free_pages(addr, get_order(size));
 }
+EXPORT_SYMBOL(dma_free_coherent);
 
 
 void consistent_sync(void *vaddr, size_t size, int direction)
@@ -92,3 +95,4 @@ void consistent_sync(void *vaddr, size_t size, int direction)
 		break;
 	}
 }
+EXPORT_SYMBOL(consistent_sync);
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index 69759e9cb3e..126c1883940 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -210,14 +210,6 @@ void pcibios_set_master(struct pci_dev *dev)
 	/* No special bus mastering setup handling */
 }
 
-/* the next one is stolen from the alpha port... */
-
-void __init
-pcibios_update_irq(struct pci_dev *dev, int irq)
-{
-	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
-}
-
 int pcibios_enable_device(struct pci_dev *dev, int mask)
 {
 	u16 cmd, old_cmd;
@@ -341,7 +333,7 @@ __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vma,
 	int prot = pgprot_val(vma->vm_page_prot);
 
 	/* Set to write-through */
-	prot &= ~_PAGE_NO_CACHE;
+	prot = (prot & _PAGE_CA_MASK) | _PAGE_CA_WT;
 #if 0
 	if (!write_combine)
 		prot |= _PAGE_WRITETHRU;
diff --git a/arch/xtensa/kernel/platform.c b/arch/xtensa/kernel/platform.c
index 1b91a97f1d8..97230e46cbe 100644
--- a/arch/xtensa/kernel/platform.c
+++ b/arch/xtensa/kernel/platform.c
@@ -40,8 +40,8 @@ _F(int,  pcibios_fixup, (void), { return 0; });
 #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
 _F(void, calibrate_ccount, (void),
 {
-  printk ("ERROR: Cannot calibrate cpu frequency! Assuming 100MHz.\n");
-  ccount_per_jiffy = 100 * (1000000UL/HZ);
+	pr_err("ERROR: Cannot calibrate cpu frequency! Assuming 10MHz.\n");
+	ccount_per_jiffy = 10 * (1000000UL/HZ);
 });
 #endif
 
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 2c8d6a3d250..bc020825cce 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -31,6 +31,7 @@
 #include <linux/mqueue.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
+#include <linux/rcupdate.h>
 
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
@@ -110,8 +111,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			platform_idle();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 	}
 }
@@ -325,13 +328,13 @@ long xtensa_execve(const char __user *name,
                    struct pt_regs *regs)
 {
 	long error;
-	char * filename;
+	struct filename *filename;
 
 	filename = getname(name);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename, argv, envp, regs);
+	error = do_execve(filename->name, argv, envp, regs);
 	putname(filename);
 out:
 	return error;
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 17e746f7be6..270360d9806 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -60,8 +60,6 @@ struct rtc_ops *rtc_ops;
 #ifdef CONFIG_BLK_DEV_INITRD
 extern void *initrd_start;
 extern void *initrd_end;
-extern void *__initrd_start;
-extern void *__initrd_end;
 int initrd_is_mapped = 0;
 extern int initrd_below_start_ok;
 #endif
@@ -79,10 +77,6 @@ static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
 
 sysmem_info_t __initdata sysmem;
 
-#ifdef CONFIG_BLK_DEV_INITRD
-int initrd_is_mapped;
-#endif
-
 #ifdef CONFIG_MMU
 extern void init_mmu(void);
 #else
@@ -197,12 +191,6 @@ static int __init parse_bootparam(const bp_tag_t* tag)
 
 void __init init_arch(bp_tag_t *bp_start)
 {
-
-#ifdef CONFIG_BLK_DEV_INITRD
-	initrd_start = &__initrd_start;
-	initrd_end = &__initrd_end;
-#endif
-
 	sysmem.nr_banks = 0;
 
 #ifdef CONFIG_CMDLINE_BOOL
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index efe4e854b3c..63c566f627b 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -19,7 +19,6 @@
 #include <linux/errno.h>
 #include <linux/ptrace.h>
 #include <linux/personality.h>
-#include <linux/freezer.h>
 #include <linux/tracehook.h>
 
 #include <asm/ucontext.h>
@@ -527,9 +526,6 @@ static void do_signal(struct pt_regs *regs)
 
 void do_notify_resume(struct pt_regs *regs)
 {
-	if (!user_mode(regs))
-		return;
-
 	if (test_thread_flag(TIF_SIGPENDING))
 		do_signal(regs);
 
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index ee2e2089483..255154f820b 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -222,11 +222,6 @@ SECTIONS
   . = ALIGN(0x10);
   .bootstrap : { *(.bootstrap.literal .bootstrap.text .bootstrap.data) }
 
-  . = ALIGN(0x1000);
-  __initrd_start = .;
-  .initrd : { *(.initrd) }
-  __initrd_end = .;
-
   .ResetVector.text XCHAL_RESET_VECTOR_VADDR :
   {
     *(.ResetVector.text)
diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c
index c9a7c5b74a0..a8b9f1fd1e1 100644
--- a/arch/xtensa/kernel/xtensa_ksyms.c
+++ b/arch/xtensa/kernel/xtensa_ksyms.c
@@ -39,8 +39,12 @@
 EXPORT_SYMBOL(memset);
 EXPORT_SYMBOL(memcpy);
 EXPORT_SYMBOL(memmove);
+EXPORT_SYMBOL(__strncpy_user);
+EXPORT_SYMBOL(clear_page);
+EXPORT_SYMBOL(copy_page);
 
 EXPORT_SYMBOL(kernel_thread);
+EXPORT_SYMBOL(empty_zero_page);
 
 /*
  * gcc internal math functions
@@ -56,6 +60,7 @@ extern unsigned int __udivsi3(unsigned int, unsigned int);
 extern unsigned int __umodsi3(unsigned int, unsigned int);
 extern unsigned long long __umoddi3(unsigned long long, unsigned long long);
 extern unsigned long long __udivdi3(unsigned long long, unsigned long long);
+extern int __ucmpdi2(int, int);
 
 EXPORT_SYMBOL(__ashldi3);
 EXPORT_SYMBOL(__ashrdi3);
@@ -68,11 +73,31 @@ EXPORT_SYMBOL(__udivsi3);
 EXPORT_SYMBOL(__umodsi3);
 EXPORT_SYMBOL(__udivdi3);
 EXPORT_SYMBOL(__umoddi3);
+EXPORT_SYMBOL(__ucmpdi2);
+
+void __xtensa_libgcc_window_spill(void)
+{
+	BUG();
+}
+EXPORT_SYMBOL(__xtensa_libgcc_window_spill);
+
+unsigned long __sync_fetch_and_and_4(unsigned long *p, unsigned long v)
+{
+	BUG();
+}
+EXPORT_SYMBOL(__sync_fetch_and_and_4);
+
+unsigned long __sync_fetch_and_or_4(unsigned long *p, unsigned long v)
+{
+	BUG();
+}
+EXPORT_SYMBOL(__sync_fetch_and_or_4);
 
 #ifdef CONFIG_NET
 /*
  * Networking support
  */
+EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(csum_partial_copy_generic);
 #endif /* CONFIG_NET */