Merge branch 'master' into x86/memblock

Conflicts & resolutions:

* arch/x86/xen/setup.c

	dc91c728fd "xen: allow extra memory to be in multiple regions"
	24aa07882b "memblock, x86: Replace memblock_x86_reserve/free..."

	conflicted on xen_add_extra_mem() updates.  The resolution is
	trivial as the latter just want to replace
	memblock_x86_reserve_range() with memblock_reserve().

* drivers/pci/intel-iommu.c

	166e9278a3f "x86/ia64: intel-iommu: move to drivers/iommu/"
	5dfe8660a3d "bootmem: Replace work_with_active_regions() with..."

	conflicted as the former moved the file under drivers/iommu/.
	Resolved by applying the chnages from the latter on the moved
	file.

* mm/Kconfig

	6661672053a "memblock: add NO_BOOTMEM config symbol"
	c378ddd53f9 "memblock, x86: Make ARCH_DISCARD_MEMBLOCK a config option"

	conflicted trivially.  Both added config options.  Just
	letting both add their own options resolves the conflict.

* mm/memblock.c

	d1f0ece6cdc "mm/memblock.c: small function definition fixes"
	ed7b56a799c "memblock: Remove memblock_memory_can_coalesce()"

	confliected.  The former updates function removed by the
	latter.  Resolution is trivial.

Signed-off-by: Tejun Heo <tj@kernel.org>

12 files changed, 34 insertions, 98 deletions

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index cb884e489425..bad27a6ff407 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -7,6 +7,7 @@ config FRV
 	select HAVE_PERF_EVENTS
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_SHOW
+	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 
 config ZONE_DMA
 	bool
diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
index fae32c7fdcb6..0d8a7d661740 100644
--- a/arch/frv/include/asm/atomic.h
+++ b/arch/frv/include/asm/atomic.h
@@ -241,7 +241,7 @@ extern uint32_t __xchg_32(uint32_t i, volatile void *v);
 #define atomic64_cmpxchg(v, old, new)	(__cmpxchg_64(old, new, &(v)->counter))
 #define atomic64_xchg(v, new)		(__xchg_64(new, &(v)->counter))
 
-static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
+static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
 {
 	int c, old;
 	c = atomic_read(v);
@@ -253,10 +253,8 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 			break;
 		c = old;
 	}
-	return c != (u);
+	return c;
 }
 
-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
-#include <asm-generic/atomic-long.h>
 #endif /* _ASM_ATOMIC_H */
diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h
index a1d00b0c6ed7..57bf85db893f 100644
--- a/arch/frv/include/asm/bitops.h
+++ b/arch/frv/include/asm/bitops.h
@@ -403,8 +403,7 @@ int __ilog2_u64(u64 n)
 
 #include <asm-generic/bitops/le.h>
 
-#define ext2_set_bit_atomic(lock,nr,addr)	test_and_set_bit  ((nr) ^ 0x18, (addr))
-#define ext2_clear_bit_atomic(lock,nr,addr)	test_and_clear_bit((nr) ^ 0x18, (addr))
+#include <asm-generic/bitops/ext2-atomic-setbit.h>
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/frv/include/asm/hardirq.h b/arch/frv/include/asm/hardirq.h
index 5fc8b6f5bc55..c62833d6ebbb 100644
--- a/arch/frv/include/asm/hardirq.h
+++ b/arch/frv/include/asm/hardirq.h
@@ -12,7 +12,7 @@
 #ifndef __ASM_HARDIRQ_H
 #define __ASM_HARDIRQ_H
 
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 
 extern atomic_t irq_err_count;
 static inline void ack_bad_irq(int irq)
diff --git a/arch/frv/include/asm/processor.h b/arch/frv/include/asm/processor.h
index 4b789ab182b0..81c2e271d620 100644
--- a/arch/frv/include/asm/processor.h
+++ b/arch/frv/include/asm/processor.h
@@ -97,7 +97,6 @@ extern struct task_struct *__kernel_current_task;
  */
 #define start_thread(_regs, _pc, _usp)			\
 do {							\
-	set_fs(USER_DS); /* reads from user space */	\
 	__frame = __kernel_frame0_ptr;			\
 	__frame->pc	= (_pc);			\
 	__frame->psr	&= ~PSR_S;			\
diff --git a/arch/frv/include/asm/ptrace.h b/arch/frv/include/asm/ptrace.h
index 6bfad4cf1907..ef6635ca4ecb 100644
--- a/arch/frv/include/asm/ptrace.h
+++ b/arch/frv/include/asm/ptrace.h
@@ -78,7 +78,6 @@ register struct pt_regs *__frame asm("gr28");
 #define user_stack_pointer(regs)	((regs)->sp)
 
 extern unsigned long user_stack(const struct pt_regs *);
-extern void show_regs(struct pt_regs *);
 #define profile_pc(regs) ((regs)->pc)
 
 #define task_pt_regs(task) ((task)->thread.frame0)
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index 017d6d7b784f..5ba23f715ea5 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -1358,7 +1358,7 @@ sys_call_table:
 	.long sys_ni_syscall	/* for vm86 */
 	.long sys_ni_syscall	/* Old sys_query_module */
 	.long sys_poll
-	.long sys_nfsservctl
+	.long sys_ni_syscall	/* Old nfsservctl */
 	.long sys_setresgid16	/* 170 */
 	.long sys_getresgid16
 	.long sys_prctl
diff --git a/arch/frv/kernel/gdb-stub.c b/arch/frv/kernel/gdb-stub.c
index a4dba6b20bd0..a6d5381c94fe 100644
--- a/arch/frv/kernel/gdb-stub.c
+++ b/arch/frv/kernel/gdb-stub.c
@@ -672,7 +672,7 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
 	if ((uint32_t)mem&1 && count>=1) {
 		if (!gdbstub_read_byte(mem,ch))
 			return NULL;
-		buf = pack_hex_byte(buf, ch[0]);
+		buf = hex_byte_pack(buf, ch[0]);
 		mem++;
 		count--;
 	}
@@ -680,8 +680,8 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
 	if ((uint32_t)mem&3 && count>=2) {
 		if (!gdbstub_read_word(mem,(uint16_t *)ch))
 			return NULL;
-		buf = pack_hex_byte(buf, ch[0]);
-		buf = pack_hex_byte(buf, ch[1]);
+		buf = hex_byte_pack(buf, ch[0]);
+		buf = hex_byte_pack(buf, ch[1]);
 		mem += 2;
 		count -= 2;
 	}
@@ -689,10 +689,10 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
 	while (count>=4) {
 		if (!gdbstub_read_dword(mem,(uint32_t *)ch))
 			return NULL;
-		buf = pack_hex_byte(buf, ch[0]);
-		buf = pack_hex_byte(buf, ch[1]);
-		buf = pack_hex_byte(buf, ch[2]);
-		buf = pack_hex_byte(buf, ch[3]);
+		buf = hex_byte_pack(buf, ch[0]);
+		buf = hex_byte_pack(buf, ch[1]);
+		buf = hex_byte_pack(buf, ch[2]);
+		buf = hex_byte_pack(buf, ch[3]);
 		mem += 4;
 		count -= 4;
 	}
@@ -700,8 +700,8 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
 	if (count>=2) {
 		if (!gdbstub_read_word(mem,(uint16_t *)ch))
 			return NULL;
-		buf = pack_hex_byte(buf, ch[0]);
-		buf = pack_hex_byte(buf, ch[1]);
+		buf = hex_byte_pack(buf, ch[0]);
+		buf = hex_byte_pack(buf, ch[1]);
 		mem += 2;
 		count -= 2;
 	}
@@ -709,7 +709,7 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
 	if (count>=1) {
 		if (!gdbstub_read_byte(mem,ch))
 			return NULL;
-		buf = pack_hex_byte(buf, ch[0]);
+		buf = hex_byte_pack(buf, ch[0]);
 	}
 
 	*buf = 0;
@@ -1498,21 +1498,21 @@ void gdbstub(int sigval)
 		ptr = mem2hex(title, ptr, sizeof(title) - 1,0);
 
 		hx = hex_asc_hi(brr >> 24);
-		ptr = pack_hex_byte(ptr, hx);
+		ptr = hex_byte_pack(ptr, hx);
 		hx = hex_asc_lo(brr >> 24);
-		ptr = pack_hex_byte(ptr, hx);
+		ptr = hex_byte_pack(ptr, hx);
 		hx = hex_asc_hi(brr >> 16);
-		ptr = pack_hex_byte(ptr, hx);
+		ptr = hex_byte_pack(ptr, hx);
 		hx = hex_asc_lo(brr >> 16);
-		ptr = pack_hex_byte(ptr, hx);
+		ptr = hex_byte_pack(ptr, hx);
 		hx = hex_asc_hi(brr >> 8);
-		ptr = pack_hex_byte(ptr, hx);
+		ptr = hex_byte_pack(ptr, hx);
 		hx = hex_asc_lo(brr >> 8);
-		ptr = pack_hex_byte(ptr, hx);
+		ptr = hex_byte_pack(ptr, hx);
 		hx = hex_asc_hi(brr);
-		ptr = pack_hex_byte(ptr, hx);
+		ptr = hex_byte_pack(ptr, hx);
 		hx = hex_asc_lo(brr);
-		ptr = pack_hex_byte(ptr, hx);
+		ptr = hex_byte_pack(ptr, hx);
 
 		ptr = mem2hex(crlf, ptr, sizeof(crlf) - 1, 0);
 		*ptr = 0;
@@ -1526,10 +1526,10 @@ void gdbstub(int sigval)
 
 	/* Send trap type (converted to signal) */
 	*ptr++ = 'T';
-	ptr = pack_hex_byte(ptr, sigval);
+	ptr = hex_byte_pack(ptr, sigval);
 
 	/* Send Error PC */
-	ptr = pack_hex_byte(ptr, GDB_REG_PC);
+	ptr = hex_byte_pack(ptr, GDB_REG_PC);
 	*ptr++ = ':';
 	ptr = mem2hex(&__debug_frame->pc, ptr, 4, 0);
 	*ptr++ = ';';
@@ -1537,7 +1537,7 @@ void gdbstub(int sigval)
 	/*
 	 * Send frame pointer
 	 */
-	ptr = pack_hex_byte(ptr, GDB_REG_FP);
+	ptr = hex_byte_pack(ptr, GDB_REG_FP);
 	*ptr++ = ':';
 	ptr = mem2hex(&__debug_frame->fp, ptr, 4, 0);
 	*ptr++ = ';';
@@ -1545,7 +1545,7 @@ void gdbstub(int sigval)
 	/*
 	 * Send stack pointer
 	 */
-	ptr = pack_hex_byte(ptr, GDB_REG_SP);
+	ptr = hex_byte_pack(ptr, GDB_REG_SP);
 	*ptr++ = ':';
 	ptr = mem2hex(&__debug_frame->sp, ptr, 4, 0);
 	*ptr++ = ';';
diff --git a/arch/frv/kernel/irq.c b/arch/frv/kernel/irq.c
index a5f624a9f559..3facbc28cbbc 100644
--- a/arch/frv/kernel/irq.c
+++ b/arch/frv/kernel/irq.c
@@ -25,7 +25,7 @@
 #include <linux/module.h>
 #include <linux/bitops.h>
 
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/io.h>
 #include <asm/smp.h>
 #include <asm/system.h>
diff --git a/arch/frv/kernel/module.c b/arch/frv/kernel/module.c
index 711763c8a6f3..9d9835f1fe2b 100644
--- a/arch/frv/kernel/module.c
+++ b/arch/frv/kernel/module.c
@@ -22,57 +22,6 @@
 #define DEBUGP(fmt...)
 #endif
 
-void *module_alloc(unsigned long size)
-{
-	if (size == 0)
-		return NULL;
-
-	return vmalloc_exec(size);
-}
-
-
-/* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
-{
-	vfree(module_region);
-}
-
-/* We don't need anything special. */
-int module_frob_arch_sections(Elf_Ehdr *hdr,
-			      Elf_Shdr *sechdrs,
-			      char *secstrings,
-			      struct module *mod)
-{
-	return 0;
-}
-
-int apply_relocate(Elf32_Shdr *sechdrs,
-		   const char *strtab,
-		   unsigned int symindex,
-		   unsigned int relsec,
-		   struct module *me)
-{
-	printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n", me->name);
-	return -ENOEXEC;
-}
-
-int apply_relocate_add(Elf32_Shdr *sechdrs,
-		       const char *strtab,
-		       unsigned int symindex,
-		       unsigned int relsec,
-		       struct module *me)
-{
-	printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n", me->name);
-	return -ENOEXEC;
-}
-
-int module_finalize(const Elf_Ehdr *hdr,
-		    const Elf_Shdr *sechdrs,
-		    struct module *me)
-{
-	return 0;
-}
-
-void module_arch_cleanup(struct module *mod)
-{
-}
+/* TODO: At least one of apply_relocate or apply_relocate_add must be
+ * implemented in order to get working module support.
+ */
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 9d3597526467..3901df1213c0 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -143,10 +143,7 @@ void machine_power_off(void)
 
 void flush_thread(void)
 {
-#if 0 //ndef NO_FPU
-	unsigned long zero = 0;
-#endif
-	set_fs(USER_DS);
+	/* nothing */
 }
 
 inline unsigned long user_stack(const struct pt_regs *regs)
diff --git a/arch/frv/mm/pgalloc.c b/arch/frv/mm/pgalloc.c
index c42c83d507bc..4fb63a36bd52 100644
--- a/arch/frv/mm/pgalloc.c
+++ b/arch/frv/mm/pgalloc.c
@@ -133,13 +133,7 @@ void pgd_dtor(void *pgd)
 
 pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	pgd_t *pgd;
-
-	pgd = quicklist_alloc(0, GFP_KERNEL, pgd_ctor);
-	if (!pgd)
-		return pgd;
-
-	return pgd;
+	return quicklist_alloc(0, GFP_KERNEL, pgd_ctor);
 }
 
 void pgd_free(struct mm_struct *mm, pgd_t *pgd)