---

yaml
---
r: 1918
b: refs/heads/master
c: 8181b8c
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ce10d979053379553757c3b178a138facaddff82
+refs/heads/master: 8181b8c1f3a69fe5abcc51cb732eb512ccd1566a

trunk/arch/i386/kernel/Makefile

@@ -43,7 +43,7 @@ obj-$(CONFIG_SCx200)		+= scx200.o
 # Note: kbuild does not track this dependency due to usage of .incbin
 $(obj)/vsyscall.o: $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so
 targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
-targets += vsyscall-note.o vsyscall.lds
+targets += vsyscall.lds
 
 # The DSO images are built using a special linker script.
 quiet_cmd_syscall = SYSCALL $@

trunk/arch/ia64/kernel/module.c

@@ -825,16 +825,14 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind
 		 * XXX Should have an arch-hook for running this after final section
 		 *     addresses have been selected...
 		 */
-		uint64_t gp;
-		if (mod->core_size > MAX_LTOFF)
+		/* See if gp can cover the entire core module:  */
+		uint64_t gp = (uint64_t) mod->module_core + MAX_LTOFF / 2;
+		if (mod->core_size >= MAX_LTOFF)
 			/*
 			 * This takes advantage of fact that SHF_ARCH_SMALL gets allocated
 			 * at the end of the module.
 			 */
-			gp = mod->core_size - MAX_LTOFF / 2;
-		else
-			gp = mod->core_size / 2;
-		gp = (uint64_t) mod->module_core + ((gp + 7) & -8);
+			gp = (uint64_t) mod->module_core + mod->core_size - MAX_LTOFF / 2;
 		mod->arch.gp = gp;
 		DEBUGP("%s: placing gp at 0x%lx\n", __FUNCTION__, gp);
 	}

trunk/arch/ia64/kernel/ptrace.c

@@ -635,17 +635,11 @@ ia64_flush_fph (struct task_struct *task)
 {
 	struct ia64_psr *psr = ia64_psr(ia64_task_regs(task));
 
-	/*
-	 * Prevent migrating this task while
-	 * we're fiddling with the FPU state
-	 */
-	preempt_disable();
 	if (ia64_is_local_fpu_owner(task) && psr->mfh) {
 		psr->mfh = 0;
 		task->thread.flags |= IA64_THREAD_FPH_VALID;
 		ia64_save_fpu(&task->thread.fph[0]);
 	}
-	preempt_enable();
 }
 
 /*

trunk/arch/ia64/kernel/setup.c

@@ -720,8 +720,7 @@ cpu_init (void)
 	ia64_set_kr(IA64_KR_PT_BASE, __pa(ia64_imva(empty_zero_page)));
 
 	/*
-	 * Initialize default control register to defer speculative faults except
-	 * for those arising from TLB misses, which are not deferred.  The
+	 * Initialize default control register to defer all speculative faults.  The
 	 * kernel MUST NOT depend on a particular setting of these bits (in other words,
 	 * the kernel must have recovery code for all speculative accesses).  Turn on
 	 * dcr.lc as per recommendation by the architecture team.  Most IA-32 apps

trunk/arch/ia64/kernel/traps.c

@@ -111,24 +111,6 @@ ia64_bad_break (unsigned long break_num, struct pt_regs *regs)
 	siginfo_t siginfo;
 	int sig, code;
 
-	/* break.b always sets cr.iim to 0, which causes problems for
-	 * debuggers.  Get the real break number from the original instruction,
-	 * but only for kernel code.  User space break.b is left alone, to
-	 * preserve the existing behaviour.  All break codings have the same
-	 * format, so there is no need to check the slot type.
-	 */
-	if (break_num == 0 && !user_mode(regs)) {
-		struct ia64_psr *ipsr = ia64_psr(regs);
-		unsigned long *bundle = (unsigned long *)regs->cr_iip;
-		unsigned long slot;
-		switch (ipsr->ri) {
-		      case 0:  slot = (bundle[0] >>  5); break;
-		      case 1:  slot = (bundle[0] >> 46) | (bundle[1] << 18); break;
-		      default: slot = (bundle[1] >> 23); break;
-		}
-		break_num = ((slot >> 36 & 1) << 20) | (slot >> 6 & 0xfffff);
-	}
-
 	/* SIGILL, SIGFPE, SIGSEGV, and SIGBUS want these field initialized: */
 	siginfo.si_addr = (void __user *) (regs->cr_iip + ia64_psr(regs)->ri);
 	siginfo.si_imm = break_num;
@@ -220,21 +202,13 @@ disabled_fph_fault (struct pt_regs *regs)
 
 	/* first, grant user-level access to fph partition: */
 	psr->dfh = 0;
-
-	/*
-	 * Make sure that no other task gets in on this processor
-	 * while we're claiming the FPU
-	 */
-	preempt_disable();
 #ifndef CONFIG_SMP
 	{
 		struct task_struct *fpu_owner
 			= (struct task_struct *)ia64_get_kr(IA64_KR_FPU_OWNER);
 
-		if (ia64_is_local_fpu_owner(current)) {
-			preempt_enable_no_resched();
+		if (ia64_is_local_fpu_owner(current))
 			return;
-		}
 
 		if (fpu_owner)
 			ia64_flush_fph(fpu_owner);
@@ -252,7 +226,6 @@ disabled_fph_fault (struct pt_regs *regs)
 		 */
 		psr->mfh = 1;
 	}
-	preempt_enable_no_resched();
 }
 
 static inline int

trunk/arch/ia64/mm/init.c

@@ -305,9 +305,8 @@ setup_gate (void)
 	struct page *page;
 
 	/*
-	 * Map the gate page twice: once read-only to export the ELF
-	 * headers etc. and once execute-only page to enable
-	 * privilege-promotion via "epc":
+	 * Map the gate page twice: once read-only to export the ELF headers etc. and once
+	 * execute-only page to enable privilege-promotion via "epc":
 	 */
 	page = virt_to_page(ia64_imva(__start_gate_section));
 	put_kernel_page(page, GATE_ADDR, PAGE_READONLY);
@@ -316,20 +315,6 @@ setup_gate (void)
 	put_kernel_page(page, GATE_ADDR + PAGE_SIZE, PAGE_GATE);
 #else
 	put_kernel_page(page, GATE_ADDR + PERCPU_PAGE_SIZE, PAGE_GATE);
-	/* Fill in the holes (if any) with read-only zero pages: */
-	{
-		unsigned long addr;
-
-		for (addr = GATE_ADDR + PAGE_SIZE;
-		     addr < GATE_ADDR + PERCPU_PAGE_SIZE;
-		     addr += PAGE_SIZE)
-		{
-			put_kernel_page(ZERO_PAGE(0), addr,
-					PAGE_READONLY);
-			put_kernel_page(ZERO_PAGE(0), addr + PERCPU_PAGE_SIZE,
-					PAGE_READONLY);
-		}
-	}
 #endif
 	ia64_patch_gate();
 }

trunk/arch/ia64/sn/kernel/setup.c

@@ -222,7 +222,7 @@ void __init early_sn_setup(void)
 
 extern int platform_intr_list[];
 extern nasid_t master_nasid;
-static int __initdata shub_1_1_found = 0;
+static int shub_1_1_found __initdata;
 
 /*
  * sn_check_for_wars
@@ -251,7 +251,7 @@ static void __init sn_check_for_wars(void)
 	} else {
 		for_each_online_node(cnode) {
 			if (is_shub_1_1(cnodeid_to_nasid(cnode)))
-				shub_1_1_found = 1;
+				sn_hub_info->shub_1_1_found = 1;
 		}
 	}
 }

trunk/arch/ppc/kernel/cputable.c

@@ -849,17 +849,6 @@ struct cpu_spec	cpu_specs[] = {
 		.icache_bsize		= 32,
 		.dcache_bsize		= 32,
 	},
-	{	/* 405EP */
-		.pvr_mask		= 0xffff0000,
-		.pvr_value		= 0x51210000,
-		.cpu_name		= "405EP",
-		.cpu_features		= CPU_FTR_SPLIT_ID_CACHE |
-			CPU_FTR_USE_TB,
-		.cpu_user_features	= PPC_FEATURE_32 |
-			PPC_FEATURE_HAS_MMU | PPC_FEATURE_HAS_4xxMAC,
-		.icache_bsize		= 32,
-		.dcache_bsize		= 32,
-	},
 
 #endif /* CONFIG_40x */
 #ifdef CONFIG_44x

trunk/arch/ppc64/kernel/kprobes.c

@@ -45,17 +45,12 @@ static struct pt_regs jprobe_saved_regs;
 
 int arch_prepare_kprobe(struct kprobe *p)
 {
-	int ret = 0;
 	kprobe_opcode_t insn = *p->addr;
 
-	if ((unsigned long)p->addr & 0x03) {
-		printk("Attempt to register kprobe at an unaligned address\n");
-		ret = -EINVAL;
-	} else if (IS_MTMSRD(insn) || IS_RFID(insn)) {
-		printk("Cannot register a kprobe on rfid or mtmsrd\n");
-		ret = -EINVAL;
-	}
-	return ret;
+	if (IS_MTMSRD(insn) || IS_RFID(insn))
+		/* cannot put bp on RFID/MTMSRD */
+		return 1;
+	return 0;
 }
 
 void arch_copy_kprobe(struct kprobe *p)
@@ -177,6 +172,8 @@ static void resume_execution(struct kprobe *p, struct pt_regs *regs)
 	ret = emulate_step(regs, p->ainsn.insn[0]);
 	if (ret == 0)
 		regs->nip = (unsigned long)p->addr + 4;
+
+	regs->msr &= ~MSR_SE;
 }
 
 static inline int post_kprobe_handler(struct pt_regs *regs)
@@ -213,7 +210,6 @@ static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 
 	if (kprobe_status & KPROBE_HIT_SS) {
 		resume_execution(current_kprobe, regs);
-		regs->msr &= ~MSR_SE;
 		regs->msr |= kprobe_saved_msr;
 
 		unlock_kprobes();

trunk/arch/ppc64/kernel/misc.S

@@ -792,7 +792,7 @@ _GLOBAL(sys_call_table32)
 	.llong .compat_sys_newstat
 	.llong .compat_sys_newlstat
 	.llong .compat_sys_newfstat
-	.llong .sys32_uname
+	.llong .sys_uname
 	.llong .sys_ni_syscall		/* 110 old iopl syscall */
 	.llong .sys_vhangup
 	.llong .sys_ni_syscall		/* old idle syscall */

trunk/arch/ppc64/kernel/sys_ppc32.c

@@ -791,6 +791,31 @@ asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
 }
 
 
+asmlinkage int ppc64_newuname(struct new_utsname __user * name)
+{
+	int errno = sys_newuname(name);
+
+	if (current->personality == PER_LINUX32 && !errno) {
+		if(copy_to_user(name->machine, "ppc\0\0", 8)) {
+			errno = -EFAULT;
+		}
+	}
+	return errno;
+}
+
+asmlinkage int ppc64_personality(unsigned long personality)
+{
+	int ret;
+	if (current->personality == PER_LINUX32 && personality == PER_LINUX)
+		personality = PER_LINUX32;
+	ret = sys_personality(personality);
+	if (ret == PER_LINUX32)
+		ret = PER_LINUX;
+	return ret;
+}
+
+
+
 /* Note: it is necessary to treat mode as an unsigned int,
  * with the corresponding cast to a signed int to insure that the 
  * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
@@ -1133,47 +1158,26 @@ asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
 }
 #endif
 
-asmlinkage int sys32_uname(struct old_utsname __user * name)
-{
-	int err = 0;
-
-	down_read(&uts_sem);
-	if (copy_to_user(name, &system_utsname, sizeof(*name)))
-		err = -EFAULT;
-	up_read(&uts_sem);
-	if (!err && personality(current->personality) == PER_LINUX32) {
-		/* change "ppc64" to "ppc" */
-		if (__put_user(0, name->machine + 3)
-		    || __put_user(0, name->machine + 4))
-			err = -EFAULT;
-	}
-	return err;
-}
-
 asmlinkage int sys32_olduname(struct oldold_utsname __user * name)
 {
 	int error;
-
+
+	if (!name)
+		return -EFAULT;
 	if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
 		return -EFAULT;
 
 	down_read(&uts_sem);
 	error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
-	error |= __put_user(0,name->sysname+__OLD_UTS_LEN);
-	error |= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
-	error |= __put_user(0,name->nodename+__OLD_UTS_LEN);
-	error |= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
-	error |= __put_user(0,name->release+__OLD_UTS_LEN);
-	error |= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
-	error |= __put_user(0,name->version+__OLD_UTS_LEN);
-	error |= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
-	error |= __put_user(0,name->machine+__OLD_UTS_LEN);
-	if (personality(current->personality) == PER_LINUX32) {
-		/* change "ppc64" to "ppc" */
-		error |= __put_user(0, name->machine + 3);
-		error |= __put_user(0, name->machine + 4);
-	}
-
+	error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
+	error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
+	error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
+	error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
+	error -= __put_user(0,name->release+__OLD_UTS_LEN);
+	error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
+	error -= __put_user(0,name->version+__OLD_UTS_LEN);
+	error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
+	error = __put_user(0,name->machine+__OLD_UTS_LEN);
 	up_read(&uts_sem);
 
 	error = error ? -EFAULT : 0;

trunk/arch/ppc64/kernel/syscalls.c

@@ -199,33 +199,24 @@ unsigned long sys_mmap(unsigned long addr, size_t len,
 	return ret;
 }
 
-long ppc64_personality(unsigned long personality)
+static int __init set_fakeppc(char *str)
 {
-	long ret;
-
-	if (personality(current->personality) == PER_LINUX32
-	    && personality == PER_LINUX)
-		personality = PER_LINUX32;
-	ret = sys_personality(personality);
-	if (ret == PER_LINUX32)
-		ret = PER_LINUX;
-	return ret;
+	if (*str)
+		return 0;
+	init_task.personality = PER_LINUX32;
+	return 1;
 }
+__setup("fakeppc", set_fakeppc);
 
-long ppc64_newuname(struct new_utsname __user * name)
+asmlinkage int sys_uname(struct old_utsname __user * name)
 {
-	int err = 0;
-
+	int err = -EFAULT;
+	
 	down_read(&uts_sem);
-	if (copy_to_user(name, &system_utsname, sizeof(*name)))
-		err = -EFAULT;
+	if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
+		err = 0;
 	up_read(&uts_sem);
-	if (!err && personality(current->personality) == PER_LINUX32) {
-		/* change ppc64 to ppc */
-		if (__put_user(0, name->machine + 3)
-		    || __put_user(0, name->machine + 4))
-			err = -EFAULT;
-	}
+
 	return err;
 }
 

trunk/arch/um/Kconfig_char

@@ -204,11 +204,5 @@ config UML_RANDOM
 	http://sourceforge.net/projects/gkernel/).  rngd periodically reads
 	/dev/hwrng and injects the entropy into /dev/random.
 
-config MMAPPER
-	tristate "iomem emulation driver"
-	help
-	This driver allows a host file to be used as emulated IO memory inside
-	UML.
-
 endmenu