---

yaml --- r: 323257 b: refs/heads/master c: bef83de h: refs/heads/master i: 323255: 299d40b v: v3
git-mirror · Sep 25, 2012 · 38f29a5 · 38f29a5
1 parent 6c751cb
commit 38f29a5
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Showing 89 changed files with 450 additions and 793 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 21e98932dcf15fe7eabd09a35f2020e0dd86b685
+refs/heads/master: bef83de5a0e3031ff6ff9584b458611a7ac01b85
diff --git a/trunk/Documentation/vfio.txt b/trunk/Documentation/vfio.txt
@@ -133,7 +133,7 @@ character devices for this group:
 $ lspci -n -s 0000:06:0d.0
 06:0d.0 0401: 1102:0002 (rev 08)
 # echo 0000:06:0d.0 > /sys/bus/pci/devices/0000:06:0d.0/driver/unbind
-# echo 1102 0002 > /sys/bus/pci/drivers/vfio-pci/new_id
+# echo 1102 0002 > /sys/bus/pci/drivers/vfio/new_id
 
 Now we need to look at what other devices are in the group to free
 it for use by VFIO:

diff --git a/trunk/MAINTAINERS b/trunk/MAINTAINERS
@@ -3552,12 +3552,11 @@ K:	\b(ABS|SYN)_MT_
 
 INTEL C600 SERIES SAS CONTROLLER DRIVER
 M:	Intel SCU Linux support <intel-linux-scu@intel.com>
-M:	Lukasz Dorau <lukasz.dorau@intel.com>
-M:	Maciej Patelczyk <maciej.patelczyk@intel.com>
 M:	Dave Jiang <dave.jiang@intel.com>
+M:	Ed Nadolski <edmund.nadolski@intel.com>
 L:	linux-scsi@vger.kernel.org
-T:	git git://git.code.sf.net/p/intel-sas/isci
-S:	Supported
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git
+S:	Maintained
 F:	drivers/scsi/isci/
 F:	firmware/isci/
 
@@ -5545,8 +5544,6 @@ F:	Documentation/devicetree/bindings/pwm/
 F:	include/linux/pwm.h
 F:	include/linux/of_pwm.h
 F:	drivers/pwm/
-F:	drivers/video/backlight/pwm_bl.c
-F:	include/linux/pwm_backlight.h
 
 PXA2xx/PXA3xx SUPPORT
 M:	Eric Miao <eric.y.miao@gmail.com>

diff --git a/trunk/arch/arm/mach-mxs/mach-mxs.c b/trunk/arch/arm/mach-mxs/mach-mxs.c
@@ -261,7 +261,7 @@ static void __init apx4devkit_init(void)
 	enable_clk_enet_out();
 
 	if (IS_BUILTIN(CONFIG_PHYLIB))
-		phy_register_fixup_for_uid(PHY_ID_KSZ8051, MICREL_PHY_ID_MASK,
+		phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
 					   apx4devkit_phy_fixup);
 
 	mxsfb_pdata.mode_list = apx4devkit_video_modes;

diff --git a/trunk/arch/arm/mach-orion5x/common.c b/trunk/arch/arm/mach-orion5x/common.c
@@ -204,13 +204,6 @@ void __init orion5x_wdt_init(void)
 void __init orion5x_init_early(void)
 {
 	orion_time_set_base(TIMER_VIRT_BASE);
-
-	/*
-	 * Some Orion5x devices allocate their coherent buffers from atomic
-	 * context. Increase size of atomic coherent pool to make sure such
-	 * the allocations won't fail.
-	 */
-	init_dma_coherent_pool_size(SZ_1M);
 }
 
 int orion5x_tclk;

diff --git a/trunk/arch/arm/mm/dma-mapping.c b/trunk/arch/arm/mm/dma-mapping.c
@@ -346,8 +346,6 @@ static int __init atomic_pool_init(void)
 		       (unsigned)pool->size / 1024);
 		return 0;
 	}
-
-	kfree(pages);
 no_pages:
 	kfree(bitmap);
 no_bitmap:

diff --git a/trunk/arch/c6x/include/asm/Kbuild b/trunk/arch/c6x/include/asm/Kbuild
@@ -2,7 +2,6 @@ include include/asm-generic/Kbuild.asm
 
 generic-y += atomic.h
 generic-y += auxvec.h
-generic-y += barrier.h
 generic-y += bitsperlong.h
 generic-y += bugs.h
 generic-y += cputime.h

diff --git a/trunk/arch/c6x/include/asm/barrier.h b/trunk/arch/c6x/include/asm/barrier.h
@@ -0,0 +1,27 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_BARRIER_H
+#define _ASM_C6X_BARRIER_H
+
+#define nop()                    asm("NOP\n");
+
+#define mb()                     barrier()
+#define rmb()                    barrier()
+#define wmb()                    barrier()
+#define set_mb(var, value)       do { var = value;  mb(); } while (0)
+#define set_wmb(var, value)      do { var = value; wmb(); } while (0)
+
+#define smp_mb()	         barrier()
+#define smp_rmb()	         barrier()
+#define smp_wmb()	         barrier()
+#define smp_read_barrier_depends()	do { } while (0)
+
+#endif /* _ASM_C6X_BARRIER_H */
diff --git a/trunk/arch/tile/include/gxio/iorpc_trio.h b/trunk/arch/tile/include/gxio/iorpc_trio.h
@@ -25,23 +25,21 @@
 #include <linux/module.h>
 #include <asm/pgtable.h>
 
-#define GXIO_TRIO_OP_DEALLOC_ASID      IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1400)
-#define GXIO_TRIO_OP_ALLOC_ASIDS       IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1401)
+#define GXIO_TRIO_OP_ALLOC_ASIDS       IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1400)
 
-#define GXIO_TRIO_OP_ALLOC_MEMORY_MAPS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1404)
+#define GXIO_TRIO_OP_ALLOC_MEMORY_MAPS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1402)
 
-#define GXIO_TRIO_OP_ALLOC_PIO_REGIONS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1412)
+#define GXIO_TRIO_OP_ALLOC_PIO_REGIONS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x140e)
+#define GXIO_TRIO_OP_INIT_PIO_REGION_AUX IORPC_OPCODE(IORPC_FORMAT_NONE, 0x140f)
 
-#define GXIO_TRIO_OP_INIT_PIO_REGION_AUX IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1414)
+#define GXIO_TRIO_OP_INIT_MEMORY_MAP_MMU_AUX IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1417)
+#define GXIO_TRIO_OP_GET_PORT_PROPERTY IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1418)
+#define GXIO_TRIO_OP_CONFIG_LEGACY_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1419)
+#define GXIO_TRIO_OP_CONFIG_MSI_INTR   IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x141a)
 
-#define GXIO_TRIO_OP_INIT_MEMORY_MAP_MMU_AUX IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141e)
-#define GXIO_TRIO_OP_GET_PORT_PROPERTY IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141f)
-#define GXIO_TRIO_OP_CONFIG_LEGACY_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1420)
-#define GXIO_TRIO_OP_CONFIG_MSI_INTR   IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1421)
-
-#define GXIO_TRIO_OP_SET_MPS_MRS       IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1423)
-#define GXIO_TRIO_OP_FORCE_RC_LINK_UP  IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1424)
-#define GXIO_TRIO_OP_FORCE_EP_LINK_UP  IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1425)
+#define GXIO_TRIO_OP_SET_MPS_MRS       IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141c)
+#define GXIO_TRIO_OP_FORCE_RC_LINK_UP  IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141d)
+#define GXIO_TRIO_OP_FORCE_EP_LINK_UP  IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141e)
 #define GXIO_TRIO_OP_GET_MMIO_BASE     IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8000)
 #define GXIO_TRIO_OP_CHECK_MMIO_OFFSET IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8001)
 

diff --git a/trunk/arch/um/include/asm/processor-generic.h b/trunk/arch/um/include/asm/processor-generic.h
@@ -20,6 +20,14 @@ struct mm_struct;
 
 struct thread_struct {
 	struct task_struct *saved_task;
+	/*
+	 * This flag is set to 1 before calling do_fork (and analyzed in
+	 * copy_thread) to mark that we are begin called from userspace (fork /
+	 * vfork / clone), and reset to 0 after. It is left to 0 when called
+	 * from kernelspace (i.e. kernel_thread() or fork_idle(),
+	 * as of 2.6.11).
+	 */
+	int forking;
 	struct pt_regs regs;
 	int singlestep_syscall;
 	void *fault_addr;
@@ -50,6 +58,7 @@ struct thread_struct {
 
 #define INIT_THREAD \
 { \
+	.forking		= 0, \
 	.regs		   	= EMPTY_REGS,	\
 	.fault_addr		= NULL, \
 	.prev_sched		= NULL, \

diff --git a/trunk/arch/um/include/shared/common-offsets.h b/trunk/arch/um/include/shared/common-offsets.h
@@ -7,6 +7,16 @@ DEFINE(UM_KERN_PAGE_MASK, PAGE_MASK);
 DEFINE(UM_KERN_PAGE_SHIFT, PAGE_SHIFT);
 DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC);
 
+DEFINE_STR(UM_KERN_EMERG, KERN_EMERG);
+DEFINE_STR(UM_KERN_ALERT, KERN_ALERT);
+DEFINE_STR(UM_KERN_CRIT, KERN_CRIT);
+DEFINE_STR(UM_KERN_ERR, KERN_ERR);
+DEFINE_STR(UM_KERN_WARNING, KERN_WARNING);
+DEFINE_STR(UM_KERN_NOTICE, KERN_NOTICE);
+DEFINE_STR(UM_KERN_INFO, KERN_INFO);
+DEFINE_STR(UM_KERN_DEBUG, KERN_DEBUG);
+DEFINE_STR(UM_KERN_CONT, KERN_CONT);
+
 DEFINE(UM_ELF_CLASS, ELF_CLASS);
 DEFINE(UM_ELFCLASS32, ELFCLASS32);
 DEFINE(UM_ELFCLASS64, ELFCLASS64);

diff --git a/trunk/arch/um/include/shared/user.h b/trunk/arch/um/include/shared/user.h
@@ -26,17 +26,6 @@
 extern void panic(const char *fmt, ...)
 	__attribute__ ((format (printf, 1, 2)));
 
-/* Requires preincluding include/linux/kern_levels.h */
-#define UM_KERN_EMERG	KERN_EMERG
-#define UM_KERN_ALERT	KERN_ALERT
-#define UM_KERN_CRIT	KERN_CRIT
-#define UM_KERN_ERR	KERN_ERR
-#define UM_KERN_WARNING	KERN_WARNING
-#define UM_KERN_NOTICE	KERN_NOTICE
-#define UM_KERN_INFO	KERN_INFO
-#define UM_KERN_DEBUG	KERN_DEBUG
-#define UM_KERN_CONT	KERN_CONT
-
 #ifdef UML_CONFIG_PRINTK
 extern int printk(const char *fmt, ...)
 	__attribute__ ((format (printf, 1, 2)));

diff --git a/trunk/arch/um/kernel/exec.c b/trunk/arch/um/kernel/exec.c
@@ -39,21 +39,34 @@ void flush_thread(void)
 
 void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
 {
-	get_safe_registers(regs->regs.gp, regs->regs.fp);
 	PT_REGS_IP(regs) = eip;
 	PT_REGS_SP(regs) = esp;
-	current->ptrace &= ~PT_DTRACE;
+}
+EXPORT_SYMBOL(start_thread);
+
+static long execve1(const char *file,
+		    const char __user *const __user *argv,
+		    const char __user *const __user *env)
+{
+	long error;
+
+	error = do_execve(file, argv, env, &current->thread.regs);
+	if (error == 0) {
+		task_lock(current);
+		current->ptrace &= ~PT_DTRACE;
 #ifdef SUBARCH_EXECVE1
-	SUBARCH_EXECVE1(regs->regs);
+		SUBARCH_EXECVE1(&current->thread.regs.regs);
 #endif
+		task_unlock(current);
+	}
+	return error;
 }
-EXPORT_SYMBOL(start_thread);
 
 long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
 {
 	long err;
 
-	err = do_execve(file, argv, env, &current->thread.regs);
+	err = execve1(file, argv, env);
 	if (!err)
 		UML_LONGJMP(current->thread.exec_buf, 1);
 	return err;
@@ -68,7 +81,7 @@ long sys_execve(const char __user *file, const char __user *const __user *argv,
 	filename = getname(file);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename)) goto out;
-	error = do_execve(filename, argv, env, &current->thread.regs);
+	error = execve1(filename, argv, env);
 	putname(filename);
  out:
 	return error;

diff --git a/trunk/arch/um/kernel/process.c b/trunk/arch/um/kernel/process.c
@@ -181,12 +181,11 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
 		struct pt_regs *regs)
 {
 	void (*handler)(void);
-	int kthread = current->flags & PF_KTHREAD;
 	int ret = 0;
 
 	p->thread = (struct thread_struct) INIT_THREAD;
 
-	if (!kthread) {
+	if (current->thread.forking) {
 	  	memcpy(&p->thread.regs.regs, &regs->regs,
 		       sizeof(p->thread.regs.regs));
 		PT_REGS_SET_SYSCALL_RETURN(&p->thread.regs, 0);
@@ -196,15 +195,16 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
 		handler = fork_handler;
 
 		arch_copy_thread(&current->thread.arch, &p->thread.arch);
-	} else {
+	}
+	else {
 		get_safe_registers(p->thread.regs.regs.gp, p->thread.regs.regs.fp);
 		p->thread.request.u.thread = current->thread.request.u.thread;
 		handler = new_thread_handler;
 	}
 
 	new_thread(task_stack_page(p), &p->thread.switch_buf, handler);
 
-	if (!kthread) {
+	if (current->thread.forking) {
 		clear_flushed_tls(p);
 
 		/*

diff --git a/trunk/arch/um/kernel/signal.c b/trunk/arch/um/kernel/signal.c
@@ -22,13 +22,9 @@ static void handle_signal(struct pt_regs *regs, unsigned long signr,
 			 struct k_sigaction *ka, siginfo_t *info)
 {
 	sigset_t *oldset = sigmask_to_save();
-	int singlestep = 0;
 	unsigned long sp;
 	int err;
 
-	if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
-		singlestep = 1;
-
 	/* Did we come from a system call? */
 	if (PT_REGS_SYSCALL_NR(regs) >= 0) {
 		/* If so, check system call restarting.. */
@@ -65,7 +61,7 @@ static void handle_signal(struct pt_regs *regs, unsigned long signr,
 	if (err)
 		force_sigsegv(signr, current);
 	else
-		signal_delivered(signr, info, ka, regs, singlestep);
+		signal_delivered(signr, info, ka, regs, 0);
 }
 
 static int kern_do_signal(struct pt_regs *regs)

diff --git a/trunk/arch/um/kernel/syscall.c b/trunk/arch/um/kernel/syscall.c
@@ -17,25 +17,25 @@
 
 long sys_fork(void)
 {
-	return do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),
+	long ret;
+
+	current->thread.forking = 1;
+	ret = do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),
 		      &current->thread.regs, 0, NULL, NULL);
+	current->thread.forking = 0;
+	return ret;
 }
 
 long sys_vfork(void)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
+	long ret;
+
+	current->thread.forking = 1;
+	ret = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
 		      UPT_SP(&current->thread.regs.regs),
 		      &current->thread.regs, 0, NULL, NULL);
-}
-
-long sys_clone(unsigned long clone_flags, unsigned long newsp,
-	       void __user *parent_tid, void __user *child_tid)
-{
-	if (!newsp)
-		newsp = UPT_SP(&current->thread.regs.regs);
-
-	return do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
-		      child_tid);
+	current->thread.forking = 0;
+	return ret;
 }
 
 long old_mmap(unsigned long addr, unsigned long len,

diff --git a/trunk/arch/um/scripts/Makefile.rules b/trunk/arch/um/scripts/Makefile.rules
@@ -8,7 +8,7 @@ USER_OBJS += $(filter %_user.o,$(obj-y) $(obj-m)  $(USER_SINGLE_OBJS))
 USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
 
 $(USER_OBJS:.o=.%): \
-	c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) -include $(srctree)/include/linux/kern_levels.h -include user.h $(CFLAGS_$(basetarget).o)
+	c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) -include user.h $(CFLAGS_$(basetarget).o)
 
 # These are like USER_OBJS but filter USER_CFLAGS through unprofile instead of
 # using it directly.

diff --git a/trunk/arch/x86/um/Kconfig b/trunk/arch/x86/um/Kconfig
@@ -21,7 +21,6 @@ config 64BIT
 config X86_32
 	def_bool !64BIT
 	select HAVE_AOUT
-	select ARCH_WANT_IPC_PARSE_VERSION
 
 config X86_64
 	def_bool 64BIT

diff --git a/trunk/arch/x86/um/shared/sysdep/kernel-offsets.h b/trunk/arch/x86/um/shared/sysdep/kernel-offsets.h
@@ -7,6 +7,9 @@
 #define DEFINE(sym, val) \
 	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
 
+#define STR(x) #x
+#define DEFINE_STR(sym, val) asm volatile("\n->" #sym " " STR(val) " " #val: : )
+
 #define BLANK() asm volatile("\n->" : : )
 
 #define OFFSET(sym, str, mem) \

diff --git a/trunk/arch/x86/um/shared/sysdep/syscalls.h b/trunk/arch/x86/um/shared/sysdep/syscalls.h
@@ -1,5 +1,3 @@
-extern long sys_clone(unsigned long clone_flags, unsigned long newsp,
-	       void __user *parent_tid, void __user *child_tid);
 #ifdef __i386__
 #include "syscalls_32.h"
 #else

diff --git a/trunk/arch/x86/um/signal.c b/trunk/arch/x86/um/signal.c
@@ -416,6 +416,9 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig,
 	PT_REGS_AX(regs) = (unsigned long) sig;
 	PT_REGS_DX(regs) = (unsigned long) 0;
 	PT_REGS_CX(regs) = (unsigned long) 0;
+
+	if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
+		ptrace_notify(SIGTRAP);
 	return 0;
 }
 
@@ -463,6 +466,9 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
 	PT_REGS_AX(regs) = (unsigned long) sig;
 	PT_REGS_DX(regs) = (unsigned long) &frame->info;
 	PT_REGS_CX(regs) = (unsigned long) &frame->uc;
+
+	if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
+		ptrace_notify(SIGTRAP);
 	return 0;
 }