Merge branch 'master' of /usr/src/ntfs-2.6/

.gitignore

+#
+# NOTE! Don't add files that are generated in specific
+# subdirectories here. Add them in the ".gitignore" file
+# in that subdirectory instead.
+#
+# Normal rules
+#
+.*
+*.o
+*.a
+*.s
+*.ko
+*.mod.c
+
+#
+# Top-level generic files
+#
+vmlinux*
+System.map
+Module.symvers
+
+#
+# Generated include files
+#
+include/asm
+include/config
+include/linux/autoconf.h
+include/linux/compile.h
+include/linux/version.h
+

Makefile

@@ -660,8 +660,10 @@ quiet_cmd_sysmap = SYSMAP
 # Link of vmlinux
 # If CONFIG_KALLSYMS is set .version is already updated
 # Generate System.map and verify that the content is consistent
-
+# Use + in front of the vmlinux_version rule to silent warning with make -j2
+# First command is ':' to allow us to use + in front of the rule
 define rule_vmlinux__
+	:
 	$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))
 
 	$(call cmd,vmlinux__)

arch/arm/mach-s3c2410/clock.c

@@ -98,7 +98,10 @@ struct clk *clk_get(struct device *dev, const char *id)
 	struct clk *clk = ERR_PTR(-ENOENT);
 	int idno;
 
-	idno = (dev == NULL) ? -1 : to_platform_device(dev)->id;
+	if (dev == NULL || dev->bus != &platform_bus_type)
+		idno = -1;
+	else
+		idno = to_platform_device(dev)->id;
 
 	down(&clocks_sem);
 

drivers/acpi/event.c

@@ -58,9 +58,8 @@ acpi_system_read_event(struct file *file, char __user * buffer, size_t count,
 			return_VALUE(-EAGAIN);
 
 		result = acpi_bus_receive_event(&event);
-		if (result) {
-			return_VALUE(-EIO);
-		}
+		if (result)
+			return_VALUE(result);
 
 		chars_remaining = sprintf(str, "%s %s %08x %08x\n",
 					  event.device_class ? event.

drivers/char/.gitignore

+consolemap_deftbl.c
+defkeymap.c
+

drivers/char/n_r3964.c

@@ -695,7 +695,7 @@ static void receive_char(struct r3964_info *pInfo, const unsigned char c)
             {
                TRACE_PE("IDLE - got STX but no space in rx_queue!");
                pInfo->state=R3964_WAIT_FOR_RX_BUF;
-	       mod_timer(&pInfo->tmr, R3964_TO_NO_BUF);
+	       mod_timer(&pInfo->tmr, jiffies + R3964_TO_NO_BUF);
                break;
             }
 start_receiving:
@@ -705,7 +705,7 @@ start_receiving:
             pInfo->last_rx = 0;
             pInfo->flags &= ~R3964_ERROR;
             pInfo->state=R3964_RECEIVING;
-	    mod_timer(&pInfo->tmr, R3964_TO_ZVZ);
+	    mod_timer(&pInfo->tmr, jiffies + R3964_TO_ZVZ);
 	    pInfo->nRetry = 0;
             put_char(pInfo, DLE);
             flush(pInfo);
@@ -732,7 +732,7 @@ start_receiving:
                if(pInfo->flags & R3964_BCC)
                {
                   pInfo->state = R3964_WAIT_FOR_BCC;
-		  mod_timer(&pInfo->tmr, R3964_TO_ZVZ);
+		  mod_timer(&pInfo->tmr, jiffies + R3964_TO_ZVZ);
                }
                else 
                {
@@ -744,7 +744,7 @@ start_receiving:
                pInfo->last_rx = c;
 char_to_buf:
                pInfo->rx_buf[pInfo->rx_position++] = c;
-	       mod_timer(&pInfo->tmr, R3964_TO_ZVZ);
+	       mod_timer(&pInfo->tmr, jiffies + R3964_TO_ZVZ);
             }
          }
         /* else: overflow-msg? BUF_SIZE>MTU; should not happen? */ 

drivers/input/misc/uinput.c

@@ -90,11 +90,11 @@ static inline int uinput_request_reserve_slot(struct uinput_device *udev, struct
 
 static void uinput_request_done(struct uinput_device *udev, struct uinput_request *request)
 {
-	complete(&request->done);
-
 	/* Mark slot as available */
 	udev->requests[request->id] = NULL;
 	wake_up_interruptible(&udev->requests_waitq);
+
+	complete(&request->done);
 }
 
 static int uinput_request_submit(struct input_dev *dev, struct uinput_request *request)

drivers/media/video/vpx3220.c

@@ -203,7 +203,7 @@ static const unsigned short init_ntsc[] = {
 	0x8c, 640,		/* Horizontal length */
 	0x8d, 640,		/* Number of pixels */
 	0x8f, 0xc00,		/* Disable window 2 */
-	0xf0, 0x173,		/* 13.5 MHz transport, Forced
+	0xf0, 0x73,		/* 13.5 MHz transport, Forced
 				 * mode, latch windows */
 	0xf2, 0x13,		/* NTSC M, composite input */
 	0xe7, 0x1e1,		/* Enable vertical standard
@@ -212,38 +212,36 @@ static const unsigned short init_ntsc[] = {
 
 static const unsigned short init_pal[] = {
 	0x88, 23,		/* Window 1 vertical begin */
-	0x89, 288 + 16,		/* Vertical lines in (16 lines
+	0x89, 288,		/* Vertical lines in (16 lines
 				 * skipped by the VFE) */
-	0x8a, 288 + 16,		/* Vertical lines out (16 lines
+	0x8a, 288,		/* Vertical lines out (16 lines
 				 * skipped by the VFE) */
 	0x8b, 16,		/* Horizontal begin */
 	0x8c, 768,		/* Horizontal length */
 	0x8d, 784, 		/* Number of pixels
 				 * Must be >= Horizontal begin + Horizontal length */
 	0x8f, 0xc00,		/* Disable window 2 */
-	0xf0, 0x177,		/* 13.5 MHz transport, Forced
+	0xf0, 0x77,		/* 13.5 MHz transport, Forced
 				 * mode, latch windows */
 	0xf2, 0x3d1,		/* PAL B,G,H,I, composite input */
-	0xe7, 0x261,		/* PAL/SECAM set to 288 + 16 lines 
-				 * change to 0x241 for 288 lines */
+	0xe7, 0x241,		/* PAL/SECAM set to 288 lines */
 };
 
 static const unsigned short init_secam[] = {
-	0x88, 23  - 16,		/* Window 1 vertical begin */
-	0x89, 288 + 16,		/* Vertical lines in (16 lines
+	0x88, 23,		/* Window 1 vertical begin */
+	0x89, 288,		/* Vertical lines in (16 lines
 				 * skipped by the VFE) */
-	0x8a, 288 + 16,		/* Vertical lines out (16 lines
+	0x8a, 288,		/* Vertical lines out (16 lines
 				 * skipped by the VFE) */
 	0x8b, 16,		/* Horizontal begin */
 	0x8c, 768,		/* Horizontal length */
 	0x8d, 784,		/* Number of pixels
 				 * Must be >= Horizontal begin + Horizontal length */
 	0x8f, 0xc00,		/* Disable window 2 */
-	0xf0, 0x177,		/* 13.5 MHz transport, Forced
+	0xf0, 0x77,		/* 13.5 MHz transport, Forced
 				 * mode, latch windows */
 	0xf2, 0x3d5,		/* SECAM, composite input */
-	0xe7, 0x261,		/* PAL/SECAM set to 288 + 16 lines 
-				 * change to 0x241 for 288 lines */
+	0xe7, 0x241,		/* PAL/SECAM set to 288 lines */
 };
 
 static const unsigned char init_common[] = {
@@ -410,6 +408,12 @@ vpx3220_command (struct i2c_client *client,
 	case DECODER_SET_NORM:
 	{
 		int *iarg = arg, data;
+		int temp_input;
+
+		/* Here we back up the input selection because it gets
+		   overwritten when we fill the registers with the
+                   choosen video norm */
+		temp_input = vpx3220_fp_read(client, 0xf2);
 
 		dprintk(1, KERN_DEBUG "%s: DECODER_SET_NORM %d\n",
 			I2C_NAME(client), *iarg);
@@ -449,6 +453,10 @@ vpx3220_command (struct i2c_client *client,
 
 		}
 		decoder->norm = *iarg;
+
+		/* And here we set the backed up video input again */
+		vpx3220_fp_write(client, 0xf2, temp_input | 0x0010);
+		udelay(10);
 	}
 		break;
 

drivers/pci/.gitignore

+classlist.h
+devlist.h
+gen-devlist
+

drivers/pci/quirks.c

@@ -1233,7 +1233,7 @@ static void __init quirk_alder_ioapic(struct pci_dev *pdev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_EESSC,	quirk_alder_ioapic );
 #endif
 
-#ifdef CONFIG_SCSI_SATA
+#ifdef CONFIG_SCSI_SATA_INTEL_COMBINED
 static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev)
 {
 	u8 prog, comb, tmp;
@@ -1310,7 +1310,7 @@ static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev)
 		request_region(0x170, 8, "libata");	/* port 1 */
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    PCI_ANY_ID,	  quirk_intel_ide_combined );
-#endif /* CONFIG_SCSI_SATA */
+#endif /* CONFIG_SCSI_SATA_INTEL_COMBINED */
 
 
 int pcie_mch_quirk;

drivers/scsi/Kconfig

@@ -553,6 +553,11 @@ config SCSI_SATA_VITESSE
 
 	  If unsure, say N.
 
+config SCSI_SATA_INTEL_COMBINED
+	bool
+	depends on IDE=y && !BLK_DEV_IDE_SATA && (SCSI_SATA_AHCI || SCSI_ATA_PIIX)
+	default y
+
 config SCSI_BUSLOGIC
 	tristate "BusLogic SCSI support"
 	depends on (PCI || ISA || MCA) && SCSI && ISA_DMA_API

drivers/serial/8250_pnp.c

@@ -276,6 +276,8 @@ static const struct pnp_device_id pnp_dev_table[] = {
 	{	"SUP1620",		0	},
 	/* SupraExpress 33.6 Data/Fax PnP modem */
 	{	"SUP1760",		0	},
+	/* SupraExpress 56i Sp Intl */
+	{	"SUP2171",		0	},
 	/* Phoebe Micro */
 	/* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
 	{	"TEX0011",		0	},

drivers/usb/host/isp116x-hcd.c

@@ -326,7 +326,8 @@ static void postproc_atl_queue(struct isp116x *isp116x)
 					usb_settoggle(udev, ep->epnum,
 						      ep->nextpid ==
 						      USB_PID_OUT,
-						      PTD_GET_TOGGLE(ptd) ^ 1);
+						      PTD_GET_TOGGLE(ptd));
+				urb->actual_length += PTD_GET_COUNT(ptd);
 				urb->status = cc_to_error[TD_DATAUNDERRUN];
 				spin_unlock(&urb->lock);
 				continue;

drivers/usb/input/hid-core.c

@@ -1702,10 +1702,7 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
 		if ((endpoint->bmAttributes & 3) != 3)		/* Not an interrupt endpoint */
 			continue;
 
-		/* handle potential highspeed HID correctly */
 		interval = endpoint->bInterval;
-		if (dev->speed == USB_SPEED_HIGH)
-			interval = 1 << (interval - 1);
 
 		/* Change the polling interval of mice. */
 		if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)

drivers/video/console/vgacon.c

@@ -565,7 +565,11 @@ static int vgacon_switch(struct vc_data *c)
 		scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf,
 			    c->vc_screenbuf_size > vga_vram_size ?
 				vga_vram_size : c->vc_screenbuf_size);
-		vgacon_doresize(c, c->vc_cols, c->vc_rows);
+		if (!(vga_video_num_columns % 2) &&
+		    vga_video_num_columns <= ORIG_VIDEO_COLS &&
+		    vga_video_num_lines <= (ORIG_VIDEO_LINES *
+			vga_default_font_height) / c->vc_font.height)
+			vgacon_doresize(c, c->vc_cols, c->vc_rows);
 	}
 
 	return 0;		/* Redrawing not needed */
@@ -1023,7 +1027,8 @@ static int vgacon_resize(struct vc_data *c, unsigned int width,
 	if (width % 2 || width > ORIG_VIDEO_COLS ||
 	    height > (ORIG_VIDEO_LINES * vga_default_font_height)/
 	    c->vc_font.height)
-		return -EINVAL;
+		/* let svgatextmode tinker with video timings */
+		return 0;
 
 	if (CON_IS_VISIBLE(c) && !vga_is_gfx) /* who knows */
 		vgacon_doresize(c, width, height);

drivers/video/logo/.gitignore

+#
+# Generated files
+#
+*_mono.c
+*_vga16.c
+*_clut224.c
+*_gray256.c

drivers/video/vesafb.c

@@ -96,14 +96,14 @@ static int vesafb_blank(int blank, struct fb_info *info)
 		int loop = 10000;
 		u8 seq = 0, crtc17 = 0;
 
-		err = 0;
-
-		if (blank) {
+		if (blank == FB_BLANK_POWERDOWN) {
 			seq = 0x20;
 			crtc17 = 0x00;
+			err = 0;
 		} else {
 			seq = 0x00;
 			crtc17 = 0x80;
+			err = (blank == FB_BLANK_UNBLANK) ? 0 : -EINVAL;
 		}
 
 		vga_wseq(NULL, 0x00, 0x01);

fs/aio.c

@@ -398,7 +398,7 @@ static struct kiocb fastcall *__aio_get_req(struct kioctx *ctx)
 	if (unlikely(!req))
 		return NULL;
 
-	req->ki_flags = 1 << KIF_LOCKED;
+	req->ki_flags = 0;
 	req->ki_users = 2;
 	req->ki_key = 0;
 	req->ki_ctx = ctx;
@@ -547,25 +547,6 @@ struct kioctx *lookup_ioctx(unsigned long ctx_id)
 	return ioctx;
 }
 
-static int lock_kiocb_action(void *param)
-{
-	schedule();
-	return 0;
-}
-
-static inline void lock_kiocb(struct kiocb *iocb)
-{
-	wait_on_bit_lock(&iocb->ki_flags, KIF_LOCKED, lock_kiocb_action,
-			 TASK_UNINTERRUPTIBLE);
-}
-
-static inline void unlock_kiocb(struct kiocb *iocb)
-{
-	kiocbClearLocked(iocb);
-	smp_mb__after_clear_bit();
-	wake_up_bit(&iocb->ki_flags, KIF_LOCKED);
-}
-
 /*
  * use_mm
  *	Makes the calling kernel thread take on the specified
@@ -796,9 +777,7 @@ static int __aio_run_iocbs(struct kioctx *ctx)
 		 * Hold an extra reference while retrying i/o.
 		 */
 		iocb->ki_users++;       /* grab extra reference */
-		lock_kiocb(iocb);
 		aio_run_iocb(iocb);
-		unlock_kiocb(iocb);
 		if (__aio_put_req(ctx, iocb))  /* drop extra ref */
 			put_ioctx(ctx);
  	}
@@ -1542,7 +1521,6 @@ int fastcall io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
 
 	spin_lock_irq(&ctx->ctx_lock);
 	aio_run_iocb(req);
-	unlock_kiocb(req);
 	if (!list_empty(&ctx->run_list)) {
 		/* drain the run list */
 		while (__aio_run_iocbs(ctx))
@@ -1674,7 +1652,6 @@ asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
 	if (NULL != cancel) {
 		struct io_event tmp;
 		pr_debug("calling cancel\n");
-		lock_kiocb(kiocb);
 		memset(&tmp, 0, sizeof(tmp));
 		tmp.obj = (u64)(unsigned long)kiocb->ki_obj.user;
 		tmp.data = kiocb->ki_user_data;
@@ -1686,7 +1663,6 @@ asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
 			if (copy_to_user(result, &tmp, sizeof(tmp)))
 				ret = -EFAULT;
 		}
-		unlock_kiocb(kiocb);
 	} else
 		ret = -EINVAL;
 

fs/nfs/delegation.c

@@ -85,6 +85,10 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
 	struct nfs_delegation *delegation;
 	int status = 0;
 
+	/* Ensure we first revalidate the attributes and page cache! */
+	if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR)))
+		__nfs_revalidate_inode(NFS_SERVER(inode), inode);
+
 	delegation = nfs_alloc_delegation();
 	if (delegation == NULL)
 		return -ENOMEM;

fs/nfs/file.c

@@ -137,7 +137,8 @@ static int nfs_revalidate_file(struct inode *inode, struct file *filp)
 	struct nfs_inode *nfsi = NFS_I(inode);
 	int retval = 0;
 
-	if ((nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE) || nfs_attribute_timeout(inode))
+	if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR))
+			|| nfs_attribute_timeout(inode))
 		retval = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
 	nfs_revalidate_mapping(inode, filp->f_mapping);
 	return 0;

fs/nfs/inode.c

@@ -877,12 +877,10 @@ static int nfs_wait_on_inode(struct inode *inode)
 	sigset_t oldmask;
 	int error;
 
-	atomic_inc(&inode->i_count);
 	rpc_clnt_sigmask(clnt, &oldmask);
 	error = wait_on_bit_lock(&nfsi->flags, NFS_INO_REVALIDATING,
 					nfs_wait_schedule, TASK_INTERRUPTIBLE);
 	rpc_clnt_sigunmask(clnt, &oldmask);
-	iput(inode);
 
 	return error;
 }
@@ -1226,10 +1224,6 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
 	loff_t cur_size, new_isize;
 	int data_unstable;
 
-	/* Do we hold a delegation? */
-	if (nfs_have_delegation(inode, FMODE_READ))
-		return 0;
-
 	spin_lock(&inode->i_lock);
 
 	/* Are we in the process of updating data on the server? */
@@ -1350,7 +1344,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
 	nfsi->read_cache_jiffies = fattr->timestamp;
 
 	/* Are we racing with known updates of the metadata on the server? */
-	data_unstable = ! nfs_verify_change_attribute(inode, verifier);
+	data_unstable = ! (nfs_verify_change_attribute(inode, verifier) ||
+		(nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE));
 
 	/* Check if our cached file size is stale */
  	new_isize = nfs_size_to_loff_t(fattr->size);

fs/proc/nommu.c

@@ -91,6 +91,7 @@ static void *nommu_vma_list_start(struct seq_file *m, loff_t *_pos)
 			next = _rb;
 			break;
 		}
+		pos--;
 	}
 
 	return next;

include/asm-arm/arch-ixp4xx/entry-macro.S

@@ -15,25 +15,26 @@
 		ldr	\irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP_OFFSET)
 		ldr	\irqstat, [\irqstat]		@ get interrupts
 		cmp	\irqstat, #0
-		beq	1001f
+		beq	1001f				@ upper IRQ?
 		clz     \irqnr, \irqstat
 		mov     \base, #31
-		subs    \irqnr, \base, \irqnr
+		sub     \irqnr, \base, \irqnr
+		b	1002f				@ lower IRQ being
+							@ handled
 
 1001:
 		/*
 		 * IXP465 has an upper IRQ status register
 		 */
 #if defined(CONFIG_CPU_IXP46X)
-		bne 	1002f
 		ldr	\irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP2_OFFSET)
 		ldr	\irqstat, [\irqstat]		@ get upper interrupts
 		mov	\irqnr, #63
 		clz	\irqstat, \irqstat
  		cmp	\irqstat, #32
 		subne	\irqnr, \irqnr, \irqstat
-1002:
 #endif
+1002:
 		.endm
 
 

include/asm-arm/arch-ixp4xx/hardware.h

@@ -27,7 +27,7 @@
 
 #define pcibios_assign_all_busses()	1
 
-#if defined(CONFIG_CPU_IXP465) && !defined(__ASSEMBLY__)
+#if defined(CONFIG_CPU_IXP46X) && !defined(__ASSEMBLY__)
 extern unsigned int processor_id;
 #define cpu_is_ixp465() ((processor_id & 0xffffffc0) == 0x69054200)
 #else

include/asm-arm/locks.h

@@ -103,7 +103,7 @@
 	({					\
 	smp_mb();				\
 	__asm__ __volatile__(			\
-	"@ up_op_read\n"			\
+	"@ up_op_write\n"			\
 "1:	ldrex	lr, [%0]\n"			\
 "	adds	lr, lr, %1\n"			\
 "	strex	ip, lr, [%0]\n"			\
@@ -231,7 +231,7 @@
 #define __up_op_write(ptr,wake)			\
 	({					\
 	__asm__ __volatile__(			\
-	"@ up_op_read\n"			\
+	"@ up_op_write\n"			\
 "	mrs	ip, cpsr\n"			\
 "	orr	lr, ip, #128\n"			\
 "	msr	cpsr_c, lr\n"			\

include/linux/aio.h

@@ -24,7 +24,12 @@ struct kioctx;
 #define KIOCB_SYNC_KEY		(~0U)
 
 /* ki_flags bits */
-#define KIF_LOCKED		0
+/*
+ * This may be used for cancel/retry serialization in the future, but
+ * for now it's unused and we probably don't want modules to even
+ * think they can use it.
+ */
+/* #define KIF_LOCKED		0 */
 #define KIF_KICKED		1
 #define KIF_CANCELLED		2
 

include/linux/list.h

@@ -442,12 +442,14 @@ static inline void list_splice_init(struct list_head *list,
  * as long as the traversal is guarded by rcu_read_lock().
  */
 #define list_for_each_rcu(pos, head) \
-	for (pos = (head)->next; prefetch(pos->next), pos != (head); \
-        	pos = rcu_dereference(pos->next))
+	for (pos = (head)->next; \
+		prefetch(rcu_dereference(pos)->next), pos != (head); \
+        	pos = pos->next)
 
 #define __list_for_each_rcu(pos, head) \
-	for (pos = (head)->next; pos != (head); \
-        	pos = rcu_dereference(pos->next))
+	for (pos = (head)->next; \
+		rcu_dereference(pos) != (head); \
+        	pos = pos->next)
 
 /**
  * list_for_each_safe_rcu	-	iterate over an rcu-protected list safe
@@ -461,8 +463,9 @@ static inline void list_splice_init(struct list_head *list,
  * as long as the traversal is guarded by rcu_read_lock().
  */
 #define list_for_each_safe_rcu(pos, n, head) \
-	for (pos = (head)->next, n = pos->next; pos != (head); \
-		pos = rcu_dereference(n), n = pos->next)
+	for (pos = (head)->next; \
+		n = rcu_dereference(pos)->next, pos != (head); \
+		pos = n)
 
 /**
  * list_for_each_entry_rcu	-	iterate over rcu list of given type
@@ -474,11 +477,11 @@ static inline void list_splice_init(struct list_head *list,
  * the _rcu list-mutation primitives such as list_add_rcu()
  * as long as the traversal is guarded by rcu_read_lock().
  */
-#define list_for_each_entry_rcu(pos, head, member)			\
-	for (pos = list_entry((head)->next, typeof(*pos), member);	\
-	     prefetch(pos->member.next), &pos->member != (head); 	\
-	     pos = rcu_dereference(list_entry(pos->member.next, 	\
-					typeof(*pos), member)))
+#define list_for_each_entry_rcu(pos, head, member) \
+	for (pos = list_entry((head)->next, typeof(*pos), member); \
+		prefetch(rcu_dereference(pos)->member.next), \
+			&pos->member != (head); \
+		pos = list_entry(pos->member.next, typeof(*pos), member))
 
 
 /**
@@ -492,8 +495,9 @@ static inline void list_splice_init(struct list_head *list,
  * as long as the traversal is guarded by rcu_read_lock().
  */
 #define list_for_each_continue_rcu(pos, head) \
-	for ((pos) = (pos)->next; prefetch((pos)->next), (pos) != (head); \
-        	(pos) = rcu_dereference((pos)->next))
+	for ((pos) = (pos)->next; \
+		prefetch(rcu_dereference((pos))->next), (pos) != (head); \
+        	(pos) = (pos)->next)
 
 /*
  * Double linked lists with a single pointer list head.
@@ -696,8 +700,9 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
 	     pos = n)
 
 #define hlist_for_each_rcu(pos, head) \
-	for ((pos) = (head)->first; pos && ({ prefetch((pos)->next); 1; }); \
-		(pos) = rcu_dereference((pos)->next))
+	for ((pos) = (head)->first; \
+		rcu_dereference((pos)) && ({ prefetch((pos)->next); 1; }); \
+		(pos) = (pos)->next)
 
 /**
  * hlist_for_each_entry	- iterate over list of given type
@@ -762,9 +767,9 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
  */
 #define hlist_for_each_entry_rcu(tpos, pos, head, member)		 \
 	for (pos = (head)->first;					 \
-	     pos && ({ prefetch(pos->next); 1;}) &&			 \
+	     rcu_dereference(pos) && ({ prefetch(pos->next); 1;}) &&	 \
 		({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
-	     pos = rcu_dereference(pos->next))
+	     pos = pos->next)
 
 #else
 #warning "don't include kernel headers in userspace"

include/linux/rcupdate.h

@@ -94,6 +94,7 @@ struct rcu_data {
 	long  	       	batch;           /* Batch # for current RCU batch */
 	struct rcu_head *nxtlist;
 	struct rcu_head **nxttail;
+	long            count; /* # of queued items */
 	struct rcu_head *curlist;
 	struct rcu_head **curtail;
 	struct rcu_head *donelist;

kernel/posix-cpu-timers.c

@@ -424,6 +424,7 @@ static void cleanup_timers(struct list_head *head,
 	cputime_t ptime = cputime_add(utime, stime);
 
 	list_for_each_entry_safe(timer, next, head, entry) {
+		put_task_struct(timer->task);
 		timer->task = NULL;
 		list_del_init(&timer->entry);
 		if (cputime_lt(timer->expires.cpu, ptime)) {
@@ -436,6 +437,7 @@ static void cleanup_timers(struct list_head *head,
 
 	++head;
 	list_for_each_entry_safe(timer, next, head, entry) {
+		put_task_struct(timer->task);
 		timer->task = NULL;
 		list_del_init(&timer->entry);
 		if (cputime_lt(timer->expires.cpu, utime)) {
@@ -448,6 +450,7 @@ static void cleanup_timers(struct list_head *head,
 
 	++head;
 	list_for_each_entry_safe(timer, next, head, entry) {
+		put_task_struct(timer->task);
 		timer->task = NULL;
 		list_del_init(&timer->entry);
 		if (timer->expires.sched < sched_time) {

kernel/rcupdate.c

@@ -71,7 +71,7 @@ DEFINE_PER_CPU(struct rcu_data, rcu_bh_data) = { 0L };
 
 /* Fake initialization required by compiler */
 static DEFINE_PER_CPU(struct tasklet_struct, rcu_tasklet) = {NULL};
-static int maxbatch = 10;
+static int maxbatch = 10000;
 
 #ifndef __HAVE_ARCH_CMPXCHG
 /*
@@ -109,6 +109,10 @@ void fastcall call_rcu(struct rcu_head *head,
 	rdp = &__get_cpu_var(rcu_data);
 	*rdp->nxttail = head;
 	rdp->nxttail = &head->next;
+
+	if (unlikely(++rdp->count > 10000))
+		set_need_resched();
+
 	local_irq_restore(flags);
 }
 
@@ -140,6 +144,12 @@ void fastcall call_rcu_bh(struct rcu_head *head,
 	rdp = &__get_cpu_var(rcu_bh_data);
 	*rdp->nxttail = head;
 	rdp->nxttail = &head->next;
+	rdp->count++;
+/*
+ *  Should we directly call rcu_do_batch() here ?
+ *  if (unlikely(rdp->count > 10000))
+ *      rcu_do_batch(rdp);
+ */
 	local_irq_restore(flags);
 }
 
@@ -157,6 +167,7 @@ static void rcu_do_batch(struct rcu_data *rdp)
 		next = rdp->donelist = list->next;
 		list->func(list);
 		list = next;
+		rdp->count--;
 		if (++count >= maxbatch)
 			break;
 	}

lib/.gitignore

+#
+# Generated files
+#
+gen_crc32table
+crc32table.h
+

scripts/.gitignore

+conmakehash
+kallsyms
+pnmtologo
+

scripts/basic/.gitignore

+fixdep
+split-include
+docproc

scripts/kconfig/.gitignore

+#
+# Generated files
+#
+config*
+lex.*.c
+*.tab.c
+*.tab.h
+
+#
+# configuration programs
+#
+conf
+mconf
+qconf
+gconf
+kxgettext

scripts/mod/.gitignore

+elfconfig.h
+mk_elfconfig
+modpost
+

usr/.gitignore

+#
+# Generated files
+#
+gen_init_cpio
+initramfs_data.cpio
+initramfs_data.cpio.gz
+initramfs_list