Merge pobox.com:/spare/repo/linux-2.6

into pobox.com:/spare/repo/libata-2.6

Makefile

 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 9
-EXTRAVERSION = -rc4
+EXTRAVERSION =
 NAME=Zonked Quokka
 
 # *DOCUMENTATION*

arch/ppc/Kconfig

@@ -35,10 +35,6 @@ config GENERIC_NVRAM
 	bool
 	default y
 
-config GENERIC_IOMAP
-	bool
-	default y
-
 source "init/Kconfig"
 
 menu "Processor"

arch/ppc/kernel/pci.c

@@ -1709,6 +1709,32 @@ pci_init_resource(struct resource *res, unsigned long start, unsigned long end,
 	res->child = NULL;
 }
 
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+	unsigned long start = pci_resource_start(dev, bar);
+	unsigned long len = pci_resource_len(dev, bar);
+	unsigned long flags = pci_resource_flags(dev, bar);
+
+	if (!len)
+		return NULL;
+	if (max && len > max)
+		len = max;
+	if (flags & IORESOURCE_IO)
+		return ioport_map(start, len);
+	if (flags & IORESOURCE_MEM)
+		return (void __iomem *) start;
+	/* What? */
+	return NULL;
+}
+
+void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
+{
+	/* Nothing to do */
+}
+EXPORT_SYMBOL(pci_iomap);
+EXPORT_SYMBOL(pci_iounmap);
+
+
 /*
  * Null PCI config access functions, for the case when we can't
  * find a hose.

arch/ppc/mm/pgtable.c

@@ -22,6 +22,7 @@
 
 #include <linux/config.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/types.h>
 #include <linux/mm.h>
 #include <linux/vmalloc.h>
@@ -271,6 +272,18 @@ void iounmap(void *addr)
 		vunmap((void *) (PAGE_MASK & (unsigned long)addr));
 }
 
+void __iomem *ioport_map(unsigned long port, unsigned int len)
+{
+	return (void __iomem *) (port + _IO_BASE);
+}
+
+void ioport_unmap(void __iomem *addr)
+{
+	/* Nothing to do */
+}
+EXPORT_SYMBOL(ioport_map);
+EXPORT_SYMBOL(ioport_unmap);
+
 int
 map_page(unsigned long va, phys_addr_t pa, int flags)
 {

arch/ppc64/kernel/Makefile

@@ -19,7 +19,7 @@ pci-obj-$(CONFIG_PPC_ISERIES)	+= iSeries_pci.o iSeries_pci_reset.o \
 				     iSeries_IoMmTable.o
 pci-obj-$(CONFIG_PPC_MULTIPLATFORM)	+= pci_dn.o pci_dma_direct.o
 
-obj-$(CONFIG_PCI)	+= pci.o pci_iommu.o $(pci-obj-y)
+obj-$(CONFIG_PCI)	+= pci.o pci_iommu.o iomap.o $(pci-obj-y)
 
 obj-$(CONFIG_PPC_ISERIES) += iSeries_irq.o \
 			     iSeries_VpdInfo.o XmPciLpEvent.o \

arch/ppc64/kernel/eeh.c

@@ -697,121 +697,6 @@ void eeh_remove_device(struct pci_dev *dev)
 }
 EXPORT_SYMBOL(eeh_remove_device);
 
-/*
- * Here comes the EEH implementation of the IOMAP 
- * interfaces.
- */
-unsigned int fastcall ioread8(void __iomem *addr)
-{
-	return readb(addr);
-}
-unsigned int fastcall ioread16(void __iomem *addr)
-{
-	return readw(addr);
-}
-unsigned int fastcall ioread32(void __iomem *addr)
-{
-	return readl(addr);
-}
-EXPORT_SYMBOL(ioread8);
-EXPORT_SYMBOL(ioread16);
-EXPORT_SYMBOL(ioread32);
-
-void fastcall iowrite8(u8 val, void __iomem *addr)
-{
-	writeb(val, addr);
-}
-void fastcall iowrite16(u16 val, void __iomem *addr)
-{
-	writew(val, addr);
-}
-void fastcall iowrite32(u32 val, void __iomem *addr)
-{
-	writel(val, addr);
-}
-EXPORT_SYMBOL(iowrite8);
-EXPORT_SYMBOL(iowrite16);
-EXPORT_SYMBOL(iowrite32);
-
-/*
- * These are the "repeat read/write" functions. Note the
- * non-CPU byte order. We do things in "IO byteorder"
- * here.
- *
- * FIXME! We could make these do EEH handling if we really
- * wanted. Not clear if we do.
- */
-void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
-{
-	_insb((u8 __force *) addr, dst, count);
-}
-void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
-{
-	_insw_ns((u16 __force *) addr, dst, count);
-}
-void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
-{
-	_insl_ns((u32 __force *) addr, dst, count);
-}
-EXPORT_SYMBOL(ioread8_rep);
-EXPORT_SYMBOL(ioread16_rep);
-EXPORT_SYMBOL(ioread32_rep);
-
-void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
-{
-	_outsb((u8 __force *) addr, src, count);
-}
-void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
-{
-	_outsw_ns((u16 __force *) addr, src, count);
-}
-void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
-{
-	_outsl_ns((u32 __force *) addr, src, count);
-}
-EXPORT_SYMBOL(iowrite8_rep);
-EXPORT_SYMBOL(iowrite16_rep);
-EXPORT_SYMBOL(iowrite32_rep);
-
-void __iomem *ioport_map(unsigned long port, unsigned int len)
-{
-	if (!_IO_IS_VALID(port))
-		return NULL;
-	return (void __iomem *) (port+pci_io_base);
-}
-
-void ioport_unmap(void __iomem *addr)
-{
-	/* Nothing to do */
-}
-EXPORT_SYMBOL(ioport_map);
-EXPORT_SYMBOL(ioport_unmap);
-
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	unsigned long start = pci_resource_start(dev, bar);
-	unsigned long len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len)
-		return NULL;
-	if (max && len > max)
-		len = max;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM)
-		return (void __iomem *) start;
-	/* What? */
-	return NULL;
-}
-
-void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
-{
-	/* Nothing to do */
-}
-EXPORT_SYMBOL(pci_iomap);
-EXPORT_SYMBOL(pci_iounmap);
-
 static int proc_eeh_show(struct seq_file *m, void *v)
 {
 	unsigned int cpu;

arch/ppc64/kernel/iomap.c

+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+
+/*
+ * Here comes the ppc64 implementation of the IOMAP 
+ * interfaces.
+ */
+unsigned int fastcall ioread8(void __iomem *addr)
+{
+	return readb(addr);
+}
+unsigned int fastcall ioread16(void __iomem *addr)
+{
+	return readw(addr);
+}
+unsigned int fastcall ioread32(void __iomem *addr)
+{
+	return readl(addr);
+}
+EXPORT_SYMBOL(ioread8);
+EXPORT_SYMBOL(ioread16);
+EXPORT_SYMBOL(ioread32);
+
+void fastcall iowrite8(u8 val, void __iomem *addr)
+{
+	writeb(val, addr);
+}
+void fastcall iowrite16(u16 val, void __iomem *addr)
+{
+	writew(val, addr);
+}
+void fastcall iowrite32(u32 val, void __iomem *addr)
+{
+	writel(val, addr);
+}
+EXPORT_SYMBOL(iowrite8);
+EXPORT_SYMBOL(iowrite16);
+EXPORT_SYMBOL(iowrite32);
+
+/*
+ * These are the "repeat read/write" functions. Note the
+ * non-CPU byte order. We do things in "IO byteorder"
+ * here.
+ *
+ * FIXME! We could make these do EEH handling if we really
+ * wanted. Not clear if we do.
+ */
+void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+	_insb((u8 __force *) addr, dst, count);
+}
+void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+	_insw_ns((u16 __force *) addr, dst, count);
+}
+void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+	_insl_ns((u32 __force *) addr, dst, count);
+}
+EXPORT_SYMBOL(ioread8_rep);
+EXPORT_SYMBOL(ioread16_rep);
+EXPORT_SYMBOL(ioread32_rep);
+
+void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+	_outsb((u8 __force *) addr, src, count);
+}
+void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+	_outsw_ns((u16 __force *) addr, src, count);
+}
+void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+	_outsl_ns((u32 __force *) addr, src, count);
+}
+EXPORT_SYMBOL(iowrite8_rep);
+EXPORT_SYMBOL(iowrite16_rep);
+EXPORT_SYMBOL(iowrite32_rep);
+
+void __iomem *ioport_map(unsigned long port, unsigned int len)
+{
+	if (!_IO_IS_VALID(port))
+		return NULL;
+	return (void __iomem *) (port+pci_io_base);
+}
+
+void ioport_unmap(void __iomem *addr)
+{
+	/* Nothing to do */
+}
+EXPORT_SYMBOL(ioport_map);
+EXPORT_SYMBOL(ioport_unmap);
+
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+	unsigned long start = pci_resource_start(dev, bar);
+	unsigned long len = pci_resource_len(dev, bar);
+	unsigned long flags = pci_resource_flags(dev, bar);
+
+	if (!len)
+		return NULL;
+	if (max && len > max)
+		len = max;
+	if (flags & IORESOURCE_IO)
+		return ioport_map(start, len);
+	if (flags & IORESOURCE_MEM)
+		return (void __iomem *) start;
+	/* What? */
+	return NULL;
+}
+
+void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
+{
+	/* Nothing to do */
+}
+EXPORT_SYMBOL(pci_iomap);
+EXPORT_SYMBOL(pci_iounmap);

arch/ppc64/kernel/prom_init.c

@@ -590,12 +590,15 @@ static void reserve_mem(unsigned long base, unsigned long size)
 	unsigned long top = base + size;
 	unsigned long cnt = RELOC(mem_reserve_cnt);
 
+	if (size == 0)
+		return;
+
 	/* We need to always keep one empty entry so that we
 	 * have our terminator with "size" set to 0 since we are
 	 * dumb and just copy this entire array to the boot params
 	 */
 	base = _ALIGN_DOWN(base, PAGE_SIZE);
-	top = _ALIGN_DOWN(top, PAGE_SIZE);
+	top = _ALIGN_UP(top, PAGE_SIZE);
 	size = top - base;
 
 	if (cnt >= (MEM_RESERVE_MAP_SIZE - 1))

arch/ppc64/kernel/smp.c

@@ -390,7 +390,8 @@ static unsigned int find_physical_cpu_to_start(unsigned int old_hwindex)
 static inline int __devinit smp_startup_cpu(unsigned int lcpu)
 {
 	int status;
-	unsigned long start_here = __pa(pseries_secondary_smp_init);
+	unsigned long start_here = __pa((u32)*((unsigned long *)
+					       pseries_secondary_smp_init));
 	unsigned int pcpu;
 
 	/* At boot time the cpus are already spinning in hold

arch/x86_64/kernel/suspend_asm.S

@@ -43,7 +43,6 @@ ENTRY(swsusp_arch_resume)
 
 	movq	mmu_cr4_features(%rip), %rax
 	movq	%rax, %rdx
-	
 	andq	$~(1<<7), %rdx	# PGE
 	movq	%rdx, %cr4;  # turn off PGE
 	movq	%cr3, %rcx;  # flush TLB
@@ -52,16 +51,16 @@ ENTRY(swsusp_arch_resume)
 
 	movl	nr_copy_pages(%rip), %eax
 	xorl	%ecx, %ecx
-	movq	$0, loop(%rip)
+	movq	$0, %r10
 	testl	%eax, %eax
-	je	.L108
+	jz	done
 .L105:
 	xorl	%esi, %esi
-	movq	$0, loop2(%rip)
+	movq	$0, %r11
 	jmp	.L104
 	.p2align 4,,7
-.L111:
-	movq	loop(%rip), %rcx
+copy_one_page:
+	movq	%r10, %rcx
 .L104:
 	movq	pagedir_nosave(%rip), %rdx
 	movq	%rcx, %rax
@@ -74,24 +73,23 @@ ENTRY(swsusp_arch_resume)
 	movq	%cr3, %rax;  # flush TLB
 	movq	%rax, %cr3;
 
-	movq	loop2(%rip), %rax
+	movq	%r11, %rax
 	incq	%rax
 	cmpq	$4095, %rax
 	movq	%rax, %rsi
-	movq	%rax, loop2(%rip)
-	jbe	.L111
-	movq	loop(%rip), %rax
+	movq	%rax, %r11
+	jbe	copy_one_page
+	movq	%r10, %rax
 	incq	%rax
 	movq	%rax, %rcx
-	movq	%rax, loop(%rip)
+	movq	%rax, %r10
 	mov	nr_copy_pages(%rip), %eax
 	cmpq	%rax, %rcx
 	jb	.L105
-.L108:
-	.align 4
+done:
 	movl	$24, %eax
-
 	movl	%eax, %ds
+
 	movq saved_context_esp(%rip), %rsp
 	movq saved_context_ebp(%rip), %rbp
 	movq saved_context_eax(%rip), %rax
@@ -111,10 +109,3 @@ ENTRY(swsusp_arch_resume)
 	pushq saved_context_eflags(%rip) ; popfq
 	call	swsusp_restore
 	ret
-
-	.section .data.nosave
-loop:
-	.quad 0
-loop2:	
-	.quad 0		
-	.previous

drivers/base/firmware_class.c

@@ -235,6 +235,8 @@ firmware_data_write(struct kobject *kobj,
 	struct firmware *fw;
 	ssize_t retval;
 
+	if (!capable(CAP_SYS_RAWIO))
+		return -EPERM;
 	down(&fw_lock);
 	fw = fw_priv->fw;
 	if (test_bit(FW_STATUS_DONE, &fw_priv->status)) {

drivers/char/agp/intel-agp.c

@@ -1778,7 +1778,7 @@ static struct pci_driver agp_intel_pci_driver = {
 	.name		= "agpgart-intel",
 	.id_table	= agp_intel_pci_table,
 	.probe		= agp_intel_probe,
-	.remove		= agp_intel_remove,
+	.remove		= __devexit_p(agp_intel_remove),
 	.resume		= agp_intel_resume,
 };
 

drivers/input/joystick/Kconfig

@@ -249,7 +249,7 @@ config JOYSTICK_AMIGA
 
 config JOYSTICK_JOYDUMP
 	tristate "Gameport data dumper"
-	depends on INPUT && INPUT_JOYSTICK
+	depends on INPUT && INPUT_JOYSTICK && GAMEPORT
 	help
 	  Say Y here if you want to dump data from your joystick into the system
 	  log for debugging purposes. Say N if you are making a production

drivers/mtd/chips/cfi_cmdset_0001.c

@@ -603,6 +603,8 @@ static void put_chip(struct map_info *map, struct flchip *chip, unsigned long ad
 				}
 				spin_unlock(&shared->lock);
 			}
+		} else {
+			spin_unlock(&shared->lock);
 		}
 	}
 

drivers/pci/hotplug/rpaphp_pci.c

@@ -362,7 +362,7 @@ static void rpaphp_eeh_remove_bus_device(struct pci_dev *dev)
 int rpaphp_unconfig_pci_adapter(struct slot *slot)
 {
 	int retval = 0;
-	struct list_head *ln;
+	struct list_head *ln, *tmp;
 
 	dbg("Entry %s: slot[%s]\n", __FUNCTION__, slot->name);
 	if (list_empty(&slot->dev.pci_funcs)) {
@@ -373,7 +373,7 @@ int rpaphp_unconfig_pci_adapter(struct slot *slot)
 		goto exit;
 	}
 	/* remove the devices from the pci core */
-	list_for_each (ln, &slot->dev.pci_funcs) {
+	list_for_each_safe (ln, tmp, &slot->dev.pci_funcs) {
 		struct rpaphp_pci_func *func;
 	
 		func = list_entry(ln, struct rpaphp_pci_func, sibling);

drivers/usb/class/usblp.c

@@ -397,10 +397,6 @@ static void usblp_cleanup (struct usblp *usblp)
 {
 	info("usblp%d: removed", usblp->minor);
 
-	usb_buffer_free (usblp->dev, USBLP_BUF_SIZE,
-			usblp->writebuf, usblp->writeurb->transfer_dma);
-	usb_buffer_free (usblp->dev, USBLP_BUF_SIZE,
-			usblp->readbuf, usblp->readurb->transfer_dma);
 	kfree (usblp->device_id_string);
 	kfree (usblp->statusbuf);
 	usb_free_urb(usblp->writeurb);
@@ -1159,6 +1155,10 @@ static void usblp_disconnect(struct usb_interface *intf)
 	usb_set_intfdata (intf, NULL);
 
 	usblp_unlink_urbs(usblp);
+	usb_buffer_free (usblp->dev, USBLP_BUF_SIZE,
+			usblp->writebuf, usblp->writeurb->transfer_dma);
+	usb_buffer_free (usblp->dev, USBLP_BUF_SIZE,
+			usblp->readbuf, usblp->readurb->transfer_dma);
 
 	if (!usblp->used)
 		usblp_cleanup (usblp);

drivers/usb/gadget/net2280.c

@@ -303,13 +303,16 @@ static void ep_reset (struct net2280_regs __iomem *regs, struct net2280_ep *ep)
 	/* init to our chosen defaults, notably so that we NAK OUT
 	 * packets until the driver queues a read (+note erratum 0112)
 	 */
-	writel (  (1 << SET_NAK_OUT_PACKETS_MODE)
+	tmp = (1 << SET_NAK_OUT_PACKETS_MODE)
 		| (1 << SET_NAK_OUT_PACKETS)
 		| (1 << CLEAR_EP_HIDE_STATUS_PHASE)
-		| (1 << CLEAR_INTERRUPT_MODE)
-		| (1 << CLEAR_ENDPOINT_TOGGLE)
-		| (1 << CLEAR_ENDPOINT_HALT)
-		, &ep->regs->ep_rsp);
+		| (1 << CLEAR_INTERRUPT_MODE);
+
+	if (ep->num != 0) {
+		tmp |= (1 << CLEAR_ENDPOINT_TOGGLE)
+			| (1 << CLEAR_ENDPOINT_HALT);
+	}
+	writel (tmp, &ep->regs->ep_rsp);
 
 	/* scrub most status bits, and flush any fifo state */
 	writel (  (1 << TIMEOUT)
@@ -1920,8 +1923,6 @@ static void ep0_start (struct net2280 *dev)
 		, &dev->usb->stdrsp);
 	writel (  (1 << USB_ROOT_PORT_WAKEUP_ENABLE)
 		| (1 << SELF_POWERED_USB_DEVICE)
-		/* erratum 0102 workaround */
-		| ((dev->chiprev == 0100) ? 0 : 1) << SUSPEND_IMMEDIATELY
 		| (1 << REMOTE_WAKEUP_SUPPORT)
 		| (dev->softconnect << USB_DETECT_ENABLE)
 		| (1 << SELF_POWERED_STATUS)
@@ -2047,6 +2048,8 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
 	stop_activity (dev, driver);
 	spin_unlock_irqrestore (&dev->lock, flags);
 
+	net2280_pullup (&dev->gadget, 0);
+
 	driver->unbind (&dev->gadget);
 	dev->gadget.dev.driver = NULL;
 	dev->driver = NULL;
@@ -2552,8 +2555,6 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
 		if (stat & (1 << SUSPEND_REQUEST_INTERRUPT)) {
 			if (dev->driver->suspend)
 				dev->driver->suspend (&dev->gadget);
-			/* we use SUSPEND_IMMEDIATELY */
-			stat &= ~(1 << SUSPEND_REQUEST_INTERRUPT);
 		} else {
 			if (dev->driver->resume)
 				dev->driver->resume (&dev->gadget);

drivers/usb/host/ehci-hcd.c

@@ -695,9 +695,18 @@ static void ehci_work (struct ehci_hcd *ehci, struct pt_regs *regs)
 	timer_action_done (ehci, TIMER_IO_WATCHDOG);
 	if (ehci->reclaim_ready)
 		end_unlink_async (ehci, regs);
+
+	/* another CPU may drop ehci->lock during a schedule scan while
+	 * it reports urb completions.  this flag guards against bogus
+	 * attempts at re-entrant schedule scanning.
+	 */
+	if (ehci->scanning)
+		return;
+	ehci->scanning = 1;
 	scan_async (ehci, regs);
 	if (ehci->next_uframe != -1)
 		scan_periodic (ehci, regs);
+	ehci->scanning = 0;
 
 	/* the IO watchdog guards against hardware or driver bugs that
 	 * misplace IRQs, and should let us run completely without IRQs.

drivers/usb/host/ehci.h

@@ -53,6 +53,7 @@ struct ehci_hcd {			/* one per controller */
 	struct ehci_qh		*async;
 	struct ehci_qh		*reclaim;
 	unsigned		reclaim_ready : 1;
+	unsigned		scanning : 1;
 
 	/* periodic schedule support */
 #define	DEFAULT_I_TDPS		1024		/* some HCs can do less */

drivers/usb/input/hid-core.c

@@ -926,6 +926,8 @@ static void hid_irq_in(struct urb *urb, struct pt_regs *regs)
 		case -ENOENT:
 		case -ESHUTDOWN:
 			return;
+		case -ETIMEDOUT:	/* NAK */
+			break;
 		default:		/* error */
 			warn("input irq status %d received", urb->status);
 	}
@@ -1859,8 +1861,8 @@ static int __init hid_init(void)
 
 static void __exit hid_exit(void)
 {
-	hiddev_exit();
 	usb_deregister(&hid_driver);
+	hiddev_exit();
 }
 
 module_init(hid_init);

drivers/usb/media/konicawc.c

@@ -362,8 +362,8 @@ static void konicawc_isoc_irq(struct urb *urb, struct pt_regs *regs)
 		else if (!urb->status && !cam->last_data_urb->status)
 			len = konicawc_compress_iso(uvd, cam->last_data_urb, urb);
 
-		resubmit_urb(uvd, urb);
 		resubmit_urb(uvd, cam->last_data_urb);
+		resubmit_urb(uvd, urb);
 		cam->last_data_urb = NULL;
 		uvd->stats.urb_length = len;
 		uvd->stats.data_count += len;

drivers/usb/serial/digi_acceleport.c

@@ -1546,6 +1546,10 @@ static void digi_close( struct usb_serial_port *port, struct file *filp )
 dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_count );
 
 
+	/* if disconnected, just clear flags */
+	if (!usb_get_intfdata(port->serial->interface))
+		goto exit;
+
 	/* do cleanup only after final close on this port */
 	spin_lock_irqsave( &priv->dp_port_lock, flags );
 	priv->dp_in_close = 1;
@@ -1616,6 +1620,7 @@ dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_co
 
 	tty->closing = 0;
 
+exit:
 	spin_lock_irqsave( &priv->dp_port_lock, flags );
 	priv->dp_write_urb_in_use = 0;
 	priv->dp_in_close = 0;

fs/ext3/inode.c

@@ -1579,6 +1579,12 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
 				 offset, nr_segs,
 				 ext3_direct_io_get_blocks, NULL);
 
+	/*
+	 * Reacquire the handle: ext3_direct_io_get_block() can restart the
+	 * transaction
+	 */
+	handle = journal_current_handle();
+
 out_stop:
 	if (handle) {
 		int err;

include/asm-i386/linkage.h

@@ -5,6 +5,10 @@
 #define FASTCALL(x)	x __attribute__((regparm(3)))
 #define fastcall	__attribute__((regparm(3)))
 
+#ifdef CONFIG_REGPARM
+# define prevent_tail_call(ret) __asm__ ("" : "=r" (ret) : "0" (ret))
+#endif
+
 #ifdef CONFIG_X86_ALIGNMENT_16
 #define __ALIGN .align 16,0x90
 #define __ALIGN_STR ".align 16,0x90"

include/asm-ppc/io.h

@@ -398,6 +398,79 @@ static inline int isa_check_signature(unsigned long io_addr,
 	return 0;
 }
 
+/*
+ * Here comes the ppc implementation of the IOMAP 
+ * interfaces.
+ */
+static inline unsigned int ioread8(void __iomem *addr)
+{
+	return readb(addr);
+}
+
+static inline unsigned int ioread16(void __iomem *addr)
+{
+	return readw(addr);
+}
+
+static inline unsigned int ioread32(void __iomem *addr)
+{
+	return readl(addr);
+}
+
+static inline void iowrite8(u8 val, void __iomem *addr)
+{
+	writeb(val, addr);
+}
+
+static inline void iowrite16(u16 val, void __iomem *addr)
+{
+	writew(val, addr);
+}
+
+static inline void iowrite32(u32 val, void __iomem *addr)
+{
+	writel(val, addr);
+}
+
+static inline void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+	_insb((u8 __force *) addr, dst, count);
+}
+
+static inline void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+	_insw_ns((u16 __force *) addr, dst, count);
+}
+
+static inline void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+	_insl_ns((u32 __force *) addr, dst, count);
+}
+
+static inline void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+	_outsb((u8 __force *) addr, src, count);
+}
+
+static inline void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+	_outsw_ns((u16 __force *) addr, src, count);
+}
+
+static inline void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+	_outsl_ns((u32 __force *) addr, src, count);
+}
+
+/* Create a virtual mapping cookie for an IO port range */
+extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
+extern void ioport_unmap(void __iomem *);
+
+/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+struct pci_dev;
+extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
+extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
+
 #endif /* _PPC_IO_H */
 
 #ifdef CONFIG_8260_PCI9

include/linux/linkage.h

@@ -14,6 +14,10 @@
 #define asmlinkage CPP_ASMLINKAGE
 #endif
 
+#ifndef prevent_tail_call
+# define prevent_tail_call(ret) do { } while (0)
+#endif
+
 #ifndef __ALIGN
 #define __ALIGN		.align 4,0x90
 #define __ALIGN_STR	".align 4,0x90"

kernel/exit.c

@@ -1376,6 +1376,8 @@ asmlinkage long sys_waitid(int which, pid_t pid,
 			   struct siginfo __user *infop, int options,
 			   struct rusage __user *ru)
 {
+	long ret;
+
 	if (options & ~(WNOHANG|WNOWAIT|WEXITED|WSTOPPED|WCONTINUED))
 		return -EINVAL;
 	if (!(options & (WEXITED|WSTOPPED|WCONTINUED)))
@@ -1398,15 +1400,25 @@ asmlinkage long sys_waitid(int which, pid_t pid,
 		return -EINVAL;
 	}
 
-	return do_wait(pid, options, infop, NULL, ru);
+	ret = do_wait(pid, options, infop, NULL, ru);
+
+	/* avoid REGPARM breakage on x86: */
+	prevent_tail_call(ret);
+	return ret;
 }
 
 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
 			  int options, struct rusage __user *ru)
 {
+	long ret;
+
 	if (options & ~(WNOHANG|WUNTRACED|__WNOTHREAD|__WCLONE|__WALL))
 		return -EINVAL;
-	return do_wait(pid, options | WEXITED, NULL, stat_addr, ru);
+	ret = do_wait(pid, options | WEXITED, NULL, stat_addr, ru);
+
+	/* avoid REGPARM breakage on x86: */
+	prevent_tail_call(ret);
+	return ret;
 }
 
 #ifdef __ARCH_WANT_SYS_WAITPID

mm/vmscan.c

@@ -181,7 +181,7 @@ static int shrink_slab(unsigned long scanned, unsigned int gfp_mask,
 	struct shrinker *shrinker;
 
 	if (scanned == 0)
-		return 0;
+		scanned = SWAP_CLUSTER_MAX;
 
 	if (!down_read_trylock(&shrinker_rwsem))
 		return 0;
@@ -1065,7 +1065,8 @@ static int balance_pgdat(pg_data_t *pgdat, int nr_pages)
 			total_reclaimed += sc.nr_reclaimed;
 			if (zone->all_unreclaimable)
 				continue;
-			if (zone->pages_scanned > zone->present_pages * 2)
+			if (zone->pages_scanned >= (zone->nr_active +
+							zone->nr_inactive) * 4)
 				zone->all_unreclaimable = 1;
 			/*
 			 * If we've done a decent amount of scanning and
@@ -1102,8 +1103,10 @@ static int balance_pgdat(pg_data_t *pgdat, int nr_pages)
 
 		zone->prev_priority = zone->temp_priority;
 	}
-	if (!all_zones_ok)
+	if (!all_zones_ok) {
+		cond_resched();
 		goto loop_again;
+	}
 
 	return total_reclaimed;
 }

net/sunrpc/auth_gss/auth_gss.c

@@ -246,7 +246,7 @@ gss_parse_init_downcall(struct gss_api_mech *gm, struct xdr_netobj *buf,
 	spin_lock_init(&ctx->gc_seq_lock);
 	atomic_set(&ctx->count,1);
 
-	if (simple_get_bytes(&p, end, uid, sizeof(uid)))
+	if (simple_get_bytes(&p, end, uid, sizeof(*uid)))
 		goto err_free_ctx;
 	/* FIXME: discarded timeout for now */
 	if (simple_get_bytes(&p, end, &timeout, sizeof(timeout)))