Merge minor changes from entry_rewrite tree.

arch/alpha/Config.help

@@ -251,6 +251,10 @@ CONFIG_ALPHA_PRIMO
 CONFIG_ALPHA_GAMMA
   Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
 
+CONFIG_ALPHA_EV67
+  Is this a machine based on the EV67 core?  If in doubt, select N here
+  and the machine will be treated as an EV6.
+
 CONFIG_ALPHA_SRM
   There are two different types of booting firmware on Alphas: SRM,
   which is command line driven, and ARC, which uses menus and arrow
@@ -610,3 +614,14 @@ CONFIG_DEBUG_SPINLOCK
   best used in conjunction with the NMI watchdog so that spinlock
   deadlocks are also debuggable.
 
+CONFIG_DEBUG_RWLOCK
+  If you say Y here then read-write lock processing will count how many
+  times it has tried to get the lock and issue an error message after
+  too many attempts.  If you suspect a rwlock problem or a kernel
+  hacker asks for this option then say Y.  Otherwise say N.
+
+CONFIG_DEBUG_SEMAPHORE
+  If you say Y here then semaphore processing will issue lots of
+  verbose debugging messages.  If you suspect a semaphore problem or a
+  kernel hacker asks for this option then say Y.  Otherwise say N.
+

arch/alpha/kernel/process.c

@@ -191,26 +191,13 @@ machine_power_off(void)
 	common_shutdown(LINUX_REBOOT_CMD_POWER_OFF, NULL);
 }
 
+/* Used by sysrq-p, among others.  I don't believe r9-r15 are ever
+   saved in the context it's used.  */
+
 void
-show_regs(struct pt_regs * regs)
+show_regs(struct pt_regs *regs)
 {
-	printk("\n");
-	printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
-	printk("ps: %04lx pc: [<%016lx>] CPU %d    %s\n",
-	       regs->ps, regs->pc, smp_processor_id(), print_tainted());
-	printk("rp: [<%016lx>] sp: %p\n", regs->r26, regs+1);
-	printk(" r0: %016lx  r1: %016lx  r2: %016lx  r3: %016lx\n",
-	       regs->r0, regs->r1, regs->r2, regs->r3);
-	printk(" r4: %016lx  r5: %016lx  r6: %016lx  r7: %016lx\n",
-	       regs->r4, regs->r5, regs->r6, regs->r7);
-	printk(" r8: %016lx r16: %016lx r17: %016lx r18: %016lx\n",
-	       regs->r8, regs->r16, regs->r17, regs->r18);
-	printk("r19: %016lx r20: %016lx r21: %016lx r22: %016lx\n",
-	       regs->r19, regs->r20, regs->r21, regs->r22);
-	printk("r23: %016lx r24: %016lx r25: %016lx r26: %016lx\n",
-	       regs->r23, regs->r24, regs->r25, regs->r26);
-	printk("r27: %016lx r28: %016lx r29: %016lx hae: %016lx\n",
-	       regs->r27, regs->r28, regs->gp, regs->hae);
+	dik_show_regs(regs, 0);
 }
 
 /*

arch/alpha/mm/fault.c

@@ -125,11 +125,10 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
 		goto bad_area;
 	if (expand_stack(vma, address))
 		goto bad_area;
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-good_area:
+
+	/* Ok, we have a good vm_area for this memory access, so
+	   we can handle it.  */
+ good_area:
 	if (cause < 0) {
 		if (!(vma->vm_flags & VM_EXEC))
 			goto bad_area;
@@ -143,11 +142,9 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
 	}
 
  survive:
-	/*
-	 * If for any reason at all we couldn't handle the fault,
-	 * make sure we exit gracefully rather than endlessly redo
-	 * the fault.
-	 */
+	/* If for any reason at all we couldn't handle the fault,
+	   make sure we exit gracefully rather than endlessly redo
+	   the fault.  */
 	fault = handle_mm_fault(mm, vma, address, cause > 0);
 	up_read(&mm->mmap_sem);
 
@@ -155,14 +152,11 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
 		goto out_of_memory;
 	if (fault == 0)
 		goto do_sigbus;
-
 	return;
 
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
+	/* Something tried to access memory that isn't in our memory map.
+	   Fix it, but check if it's kernel or user first.  */
+ bad_area:
 	up_read(&mm->mmap_sem);
 
 	if (user_mode(regs)) {
@@ -170,7 +164,7 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
 		return;
 	}
 
-no_context:
+ no_context:
 	/* Are we prepared to handle this fault as an exception?  */
 	if ((fixup = search_exception_table(regs->pc, regs->gp)) != 0) {
 		unsigned long newpc;
@@ -183,20 +177,16 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
 		return;
 	}
 
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
+	/* Oops. The kernel tried to access some bad page. We'll have to
+	   terminate things with extreme prejudice.  */
 	printk(KERN_ALERT "Unable to handle kernel paging request at "
 	       "virtual address %016lx\n", address);
 	die_if_kernel("Oops", regs, cause, (unsigned long*)regs - 16);
 	do_exit(SIGKILL);
 
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
+	/* We ran out of memory, or some other thing happened to us that
+	   made us unable to handle the page fault gracefully.  */
+ out_of_memory:
 	if (current->pid == 1) {
 		yield();
 		down_read(&mm->mmap_sem);
@@ -208,18 +198,16 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
 		goto no_context;
 	do_exit(SIGKILL);
 
-do_sigbus:
-	/*
-	 * Send a sigbus, regardless of whether we were in kernel
-	 * or user mode.
-	 */
+ do_sigbus:
+	/* Send a sigbus, regardless of whether we were in kernel
+	   or user mode.  */
 	force_sig(SIGBUS, current);
 	if (!user_mode(regs))
 		goto no_context;
 	return;
 
 #ifdef CONFIG_ALPHA_LARGE_VMALLOC
-vmalloc_fault:
+ vmalloc_fault:
 	if (user_mode(regs)) {
 		force_sig(SIGSEGV, current);
 		return;

arch/alpha/vmlinux.lds.S

@@ -58,10 +58,11 @@ SECTIONS
 	__initcall_end = .;
   }
 
-  . = ALIGN(64);
+  .data.percpu ALIGN(64): {
 	__per_cpu_start = .;
-  .data.percpu  : { *(.data.percpu) }
+	*(.data.percpu)
 	__per_cpu_end = .;
+  }
 
   /* The initial task and kernel stack */
   .data.init_thread ALIGN(2*8192) : {

include/asm-alpha/pal.h

@@ -45,7 +45,7 @@
 #define PAL_wrperfmon	57
 #define PAL_rdusp	58
 #define PAL_whami	60
-#define PAL_rtsys	61
+#define PAL_retsys	61
 #define PAL_rti		63
 
 #endif /* __ALPHA_PAL_H */