Merge branch 'linus' into tracing/core

Conflicts:
	include/linux/module.h
	kernel/module.c

Semantic conflict:
	include/trace/events/module.h

Merge reason: Resolve the conflict with upstream commit 5fbfb18 ("Fix up
              possibly racy module refcounting")

Signed-off-by: Ingo Molnar <mingo@elte.hu>

22 files changed, 96 insertions, 9 deletions

diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c
index 4589ca33220f..415c86d5a8da 100644
--- a/arch/sparc/kernel/central.c
+++ b/arch/sparc/kernel/central.c
@@ -5,6 +5,7 @@
 
 #include <linux/kernel.h>
 #include <linux/types.h>
+#include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/init.h>
 #include <linux/of_device.h>
diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c
index 7430ed080b23..8de64c8126bc 100644
--- a/arch/sparc/kernel/cpumap.c
+++ b/arch/sparc/kernel/cpumap.c
@@ -4,6 +4,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/cpumask.h>
diff --git a/arch/sparc/kernel/helpers.S b/arch/sparc/kernel/helpers.S
index 314dd0c9fc5b..92090cc9e829 100644
--- a/arch/sparc/kernel/helpers.S
+++ b/arch/sparc/kernel/helpers.S
@@ -46,6 +46,81 @@ stack_trace_flush:
 	 nop
 	.size		stack_trace_flush,.-stack_trace_flush
 
+#ifdef CONFIG_PERF_EVENTS
+	.globl		perf_arch_fetch_caller_regs
+	.type		perf_arch_fetch_caller_regs,#function
+perf_arch_fetch_caller_regs:
+	/* We always read the %pstate into %o5 since we will use
+	 * that to construct a fake %tstate to store into the regs.
+	 */
+	rdpr		%pstate, %o5
+	brz,pn		%o2, 50f
+	 mov		%o2, %g7
+
+	/* Turn off interrupts while we walk around the register
+	 * window by hand.
+	 */
+	wrpr		%o5, PSTATE_IE, %pstate
+
+	/* The %canrestore tells us how many register windows are
+	 * still live in the chip above us, past that we have to
+	 * walk the frame as saved on the stack.   We stash away
+	 * the %cwp in %g1 so we can return back to the original
+	 * register window.
+	 */
+	rdpr		%cwp, %g1
+	rdpr		%canrestore, %g2
+	sub		%g1, 1, %g3
+
+	/* We have the skip count in %g7, if it hits zero then
+	 * %fp/%i7 are the registers we need.  Otherwise if our
+	 * %canrestore count maintained in %g2 hits zero we have
+	 * to start traversing the stack.
+	 */
+10:	brz,pn		%g2, 4f
+	 sub		%g2, 1, %g2
+	wrpr		%g3, %cwp
+	subcc		%g7, 1, %g7
+	bne,pt		%xcc, 10b
+	 sub		%g3, 1, %g3
+
+	/* We found the values we need in the cpu's register
+	 * windows.
+	 */
+	mov		%fp, %g3
+	ba,pt		%xcc, 3f
+	 mov		%i7, %g2
+
+50:	mov		%fp, %g3
+	ba,pt		%xcc, 2f
+	 mov		%i7, %g2
+
+	/* We hit the end of the valid register windows in the
+	 * cpu, start traversing the stack frame.
+	 */
+4:	mov		%fp, %g3
+
+20:	ldx		[%g3 + STACK_BIAS + RW_V9_I7], %g2
+	subcc		%g7, 1, %g7
+	bne,pn		%xcc, 20b
+	 ldx		[%g3 + STACK_BIAS + RW_V9_I6], %g3
+
+	/* Restore the current register window position and
+	 * re-enable interrupts.
+	 */
+3:	wrpr		%g1, %cwp
+	wrpr		%o5, %pstate
+
+2:	stx		%g3, [%o0 + PT_V9_FP]
+	sllx		%o5, 8, %o5
+	stx		%o5, [%o0 + PT_V9_TSTATE]
+	stx		%g2, [%o0 + PT_V9_TPC]
+	add		%g2, 4, %g2
+	retl
+	 stx		%g2, [%o0 + PT_V9_TNPC]
+	.size		perf_arch_fetch_caller_regs,.-perf_arch_fetch_caller_regs
+#endif /* CONFIG_PERF_EVENTS */
+
 #ifdef CONFIG_SMP
 	.globl		hard_smp_processor_id
 	.type		hard_smp_processor_id,#function
diff --git a/arch/sparc/kernel/hvapi.c b/arch/sparc/kernel/hvapi.c
index 1d272c3b5740..7c60afb835b0 100644
--- a/arch/sparc/kernel/hvapi.c
+++ b/arch/sparc/kernel/hvapi.c
@@ -5,7 +5,6 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/slab.h>
 
 #include <asm/hypervisor.h>
 #include <asm/oplib.h>
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 8414549c1834..47977a77f6c6 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -6,6 +6,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
diff --git a/arch/sparc/kernel/kprobes.c b/arch/sparc/kernel/kprobes.c
index 6716584e48ab..a39d1ba5a119 100644
--- a/arch/sparc/kernel/kprobes.c
+++ b/arch/sparc/kernel/kprobes.c
@@ -7,6 +7,7 @@
 #include <linux/kprobes.h>
 #include <linux/module.h>
 #include <linux/kdebug.h>
+#include <linux/slab.h>
 #include <asm/signal.h>
 #include <asm/cacheflush.h>
 #include <asm/uaccess.h>
diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c
index 00d034ea2164..3ae36f36e758 100644
--- a/arch/sparc/kernel/led.c
+++ b/arch/sparc/kernel/led.c
@@ -3,6 +3,7 @@
 #include <linux/init.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/jiffies.h>
 #include <linux/timer.h>
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 0409d62d8ca2..6a7b4dbc8e09 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -7,7 +7,6 @@
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/mutex.h>
-#include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/interrupt.h>
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index 85787577f683..e1656fc41ccb 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -22,6 +22,7 @@
 #include <linux/profile.h>
 #include <linux/pm.h>
 #include <linux/delay.h>
+#include <linux/gfp.h>
 
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 0ee642f63234..f848aadf54dc 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -9,9 +9,9 @@
 #include <linux/elf.h>
 #include <linux/vmalloc.h>
 #include <linux/fs.h>
+#include <linux/gfp.h>
 #include <linux/string.h>
 #include <linux/ctype.h>
-#include <linux/slab.h>
 #include <linux/mm.h>
 
 #include <asm/processor.h>
diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c
index cb8eb799bb6c..0247e68210b3 100644
--- a/arch/sparc/kernel/of_device_common.c
+++ b/arch/sparc/kernel/of_device_common.c
@@ -4,7 +4,6 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
-#include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/irq.h>
 #include <linux/of_device.h>
diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c
index e1b0541feb19..e0ef847219c3 100644
--- a/arch/sparc/kernel/pci_msi.c
+++ b/arch/sparc/kernel/pci_msi.c
@@ -4,6 +4,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/interrupt.h>
+#include <linux/slab.h>
 #include <linux/irq.h>
 
 #include "pci_impl.h"
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index c49865b30719..40e29fc8a4d6 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -17,13 +17,13 @@
 #include <linux/mm.h>
 #include <linux/stddef.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/smp.h>
 #include <linux/reboot.h>
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <asm/auxio.h>
 #include <asm/oplib.h>
diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c
index 7e3dfd9bb97e..e608f397e11f 100644
--- a/arch/sparc/kernel/ptrace_32.c
+++ b/arch/sparc/kernel/ptrace_32.c
@@ -65,6 +65,7 @@ static int genregs32_get(struct task_struct *target,
 			*k++ = regs->u_regs[pos++];
 
 		reg_window = (unsigned long __user *) regs->u_regs[UREG_I6];
+		reg_window -= 16;
 		for (; count > 0 && pos < 32; count--) {
 			if (get_user(*k++, &reg_window[pos++]))
 				return -EFAULT;
@@ -76,6 +77,7 @@ static int genregs32_get(struct task_struct *target,
 		}
 
 		reg_window = (unsigned long __user *) regs->u_regs[UREG_I6];
+		reg_window -= 16;
 		for (; count > 0 && pos < 32; count--) {
 			if (get_user(reg, &reg_window[pos++]) ||
 			    put_user(reg, u++))
@@ -141,6 +143,7 @@ static int genregs32_set(struct task_struct *target,
 			regs->u_regs[pos++] = *k++;
 
 		reg_window = (unsigned long __user *) regs->u_regs[UREG_I6];
+		reg_window -= 16;
 		for (; count > 0 && pos < 32; count--) {
 			if (put_user(*k++, &reg_window[pos++]))
 				return -EFAULT;
@@ -153,6 +156,7 @@ static int genregs32_set(struct task_struct *target,
 		}
 
 		reg_window = (unsigned long __user *) regs->u_regs[UREG_I6];
+		reg_window -= 16;
 		for (; count > 0 && pos < 32; count--) {
 			if (get_user(reg, u++) ||
 			    put_user(reg, &reg_window[pos++]))
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 2f6524d1a817..aa90da08bf61 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -492,6 +492,7 @@ static int genregs32_get(struct task_struct *target,
 			*k++ = regs->u_regs[pos++];
 
 		reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6];
+		reg_window -= 16;
 		if (target == current) {
 			for (; count > 0 && pos < 32; count--) {
 				if (get_user(*k++, &reg_window[pos++]))
@@ -516,6 +517,7 @@ static int genregs32_get(struct task_struct *target,
 		}
 
 		reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6];
+		reg_window -= 16;
 		if (target == current) {
 			for (; count > 0 && pos < 32; count--) {
 				if (get_user(reg, &reg_window[pos++]) ||
@@ -599,6 +601,7 @@ static int genregs32_set(struct task_struct *target,
 			regs->u_regs[pos++] = *k++;
 
 		reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6];
+		reg_window -= 16;
 		if (target == current) {
 			for (; count > 0 && pos < 32; count--) {
 				if (put_user(*k++, &reg_window[pos++]))
@@ -625,6 +628,7 @@ static int genregs32_set(struct task_struct *target,
 		}
 
 		reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6];
+		reg_window -= 16;
 		if (target == current) {
 			for (; count > 0 && pos < 32; count--) {
 				if (get_user(reg, u++) ||
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index a2a79e76344f..5f72de67588b 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -12,7 +12,6 @@
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <asm/smp.h>
 #include <linux/user.h>
 #include <linux/screen_info.h>
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index eb14844a0021..4c5334528109 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -23,6 +23,7 @@
 #include <linux/bootmem.h>
 #include <linux/vmalloc.h>
 #include <linux/cpu.h>
+#include <linux/slab.h>
 
 #include <asm/head.h>
 #include <asm/ptrace.h>
diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index bc3adbf79c6a..892fb884910a 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -16,7 +16,6 @@
 #include <linux/sched.h>
 #include <linux/ptrace.h>
 #include <linux/interrupt.h>
-#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index 301892e2d718..7f3b97ff62c1 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -17,7 +17,6 @@
 #include <linux/ptrace.h>
 #include <linux/smp.h>
 #include <linux/interrupt.h>
-#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/of.h>
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index daded3b96398..c0ca87553e1c 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -21,7 +21,6 @@
 #include <linux/sem.h>
 #include <linux/msg.h>
 #include <linux/shm.h>
-#include <linux/slab.h>
 #include <linux/uio.h>
 #include <linux/nfs_fs.h>
 #include <linux/quota.h>
@@ -44,6 +43,7 @@
 #include <linux/compat.h>
 #include <linux/vfs.h>
 #include <linux/ptrace.h>
+#include <linux/slab.h>
 
 #include <asm/types.h>
 #include <asm/uaccess.h>
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index bdc05a21908b..837dfc2390d6 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -17,6 +17,7 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/kdebug.h>
+#include <linux/gfp.h>
 
 #include <asm/smp.h>
 #include <asm/delay.h>
diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index c28c71449a6c..3cb1def9806c 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <linux/irq.h>
 #include <linux/init.h>