diff --git a/MAINTAINERS b/MAINTAINERS
index c3c5842..6a1bb87 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2572,6 +2572,14 @@ M:	dbrownell@users.sourceforge.net
 L:	spi-devel-general@lists.sourceforge.net
 S:	Maintained
 
+STABLE BRANCH:
+P:	Greg Kroah-Hartman
+M:	greg@kroah.com
+P:	Chris Wright
+M:	chrisw@sous-sol.org
+L:	stable@kernel.org
+S:	Maintained
+
 TPM DEVICE DRIVER
 P:	Kylene Hall
 M:	kjhall@us.ibm.com
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index 6b1ea0c..e545b09 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -15,7 +15,9 @@ #include <linux/acpi.h>
 #include <asm/e820.h>
 #include "pci.h"
 
-#define MMCONFIG_APER_SIZE (256*1024*1024)
+/* aperture is up to 256MB but BIOS may reserve less */
+#define MMCONFIG_APER_MIN	(2 * 1024*1024)
+#define MMCONFIG_APER_MAX	(256 * 1024*1024)
 
 /* Assume systems with more busses have correct MCFG */
 #define MAX_CHECK_BUS 16
@@ -197,9 +199,10 @@ void __init pci_mmcfg_init(void)
 		return;
 
 	if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
-			pci_mmcfg_config[0].base_address + MMCONFIG_APER_SIZE,
+			pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
 			E820_RESERVED)) {
-		printk(KERN_ERR "PCI: BIOS Bug: MCFG area is not E820-reserved\n");
+		printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
+				pci_mmcfg_config[0].base_address);
 		printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
 		return;
 	}
diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c
index a2060e4..3c55c76 100644
--- a/arch/x86_64/pci/mmconfig.c
+++ b/arch/x86_64/pci/mmconfig.c
@@ -13,7 +13,10 @@ #include <asm/e820.h>
 
 #include "pci.h"
 
-#define MMCONFIG_APER_SIZE (256*1024*1024)
+/* aperture is up to 256MB but BIOS may reserve less */
+#define MMCONFIG_APER_MIN	(2 * 1024*1024)
+#define MMCONFIG_APER_MAX	(256 * 1024*1024)
+
 /* Verify the first 16 busses. We assume that systems with more busses
    get MCFG right. */
 #define MAX_CHECK_BUS 16
@@ -175,9 +178,10 @@ void __init pci_mmcfg_init(void)
 		return;
 
 	if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
-			pci_mmcfg_config[0].base_address + MMCONFIG_APER_SIZE,
+			pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
 			E820_RESERVED)) {
-		printk(KERN_ERR "PCI: BIOS Bug: MCFG area is not E820-reserved\n");
+		printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
+				pci_mmcfg_config[0].base_address);
 		printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
 		return;
 	}
@@ -190,7 +194,8 @@ void __init pci_mmcfg_init(void)
 	}
 	for (i = 0; i < pci_mmcfg_config_num; ++i) {
 		pci_mmcfg_virt[i].cfg = &pci_mmcfg_config[i];
-		pci_mmcfg_virt[i].virt = ioremap_nocache(pci_mmcfg_config[i].base_address, MMCONFIG_APER_SIZE);
+		pci_mmcfg_virt[i].virt = ioremap_nocache(pci_mmcfg_config[i].base_address,
+							 MMCONFIG_APER_MAX);
 		if (!pci_mmcfg_virt[i].virt) {
 			printk("PCI: Cannot map mmconfig aperture for segment %d\n",
 			       pci_mmcfg_config[i].pci_segment_group_number);
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index a88b94a..832163c 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -2776,7 +2776,7 @@ static void flush_to_ldisc(void *private
 	struct tty_struct *tty = (struct tty_struct *) private_;
 	unsigned long 	flags;
 	struct tty_ldisc *disc;
-	struct tty_buffer *tbuf;
+	struct tty_buffer *tbuf, *head;
 	int count;
 	char *char_buf;
 	unsigned char *flag_buf;
@@ -2793,7 +2793,9 @@ static void flush_to_ldisc(void *private
 		goto out;
 	}
 	spin_lock_irqsave(&tty->buf.lock, flags);
-	while((tbuf = tty->buf.head) != NULL) {
+	head = tty->buf.head;
+	tty->buf.head = NULL;
+	while((tbuf = head) != NULL) {
 		while ((count = tbuf->commit - tbuf->read) != 0) {
 			char_buf = tbuf->char_buf_ptr + tbuf->read;
 			flag_buf = tbuf->flag_buf_ptr + tbuf->read;
@@ -2802,10 +2804,12 @@ static void flush_to_ldisc(void *private
 			disc->receive_buf(tty, char_buf, flag_buf, count);
 			spin_lock_irqsave(&tty->buf.lock, flags);
 		}
-		if (tbuf->active)
+		if (tbuf->active) {
+			tty->buf.head = head;
 			break;
-		tty->buf.head = tbuf->next;
-		if (tty->buf.head == NULL)
+		}
+		head = tbuf->next;
+		if (head == NULL)
 			tty->buf.tail = NULL;
 		tty_buffer_free(tty, tbuf);
 	}
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index 766cc96..9b4f4ee 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -181,21 +181,21 @@ static void scx200_acb_machine(struct sc
 		break;
 
 	case state_read:
-		/* Set ACK if receiving the last byte */
-		if (iface->len == 1)
+		/* Set ACK if _next_ byte will be the last one */
+		if (iface->len == 2)
 			outb(inb(ACBCTL1) | ACBCTL1_ACK, ACBCTL1);
 		else
 			outb(inb(ACBCTL1) & ~ACBCTL1_ACK, ACBCTL1);
 
-		*iface->ptr++ = inb(ACBSDA);
-		--iface->len;
-
-		if (iface->len == 0) {
+		if (iface->len == 1) {
 			iface->result = 0;
 			iface->state = state_idle;
 			outb(inb(ACBCTL1) | ACBCTL1_STOP, ACBCTL1);
 		}
 
+		*iface->ptr++ = inb(ACBSDA);
+		--iface->len;
+
 		break;
 
 	case state_write:
@@ -304,8 +304,12 @@ static s32 scx200_acb_smbus_xfer(struct 
 		buffer = (u8 *)&cur_word;
 		break;
 
-	case I2C_SMBUS_BLOCK_DATA:
+	case I2C_SMBUS_I2C_BLOCK_DATA:
+		if (rw == I2C_SMBUS_READ)
+			data->block[0] = I2C_SMBUS_BLOCK_MAX; /* For now */
 		len = data->block[0];
+		if (len == 0 || len > I2C_SMBUS_BLOCK_MAX)
+			return -EINVAL;
 		buffer = &data->block[1];
 		break;
 
@@ -369,7 +373,7 @@ static u32 scx200_acb_func(struct i2c_ad
 {
 	return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
 	       I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
-	       I2C_FUNC_SMBUS_BLOCK_DATA;
+	       I2C_FUNC_SMBUS_I2C_BLOCK;
 }
 
 /* For now, we only handle combined mode (smbus) */
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 45e2cdf..2e79137 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -756,9 +756,9 @@ int i2c_probe(struct i2c_adapter *adapte
 					"parameter for adapter %d, "
 					"addr 0x%02x\n", adap_id,
 					address_data->ignore[j + 1]);
+				ignore = 1;
+				break;
 			}
-			ignore = 1;
-			break;
 		}
 		if (ignore)
 			continue;
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index 5413dc4..e084dbf 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -2541,6 +2541,9 @@ static int sbp2scsi_slave_configure(stru
 		sdev->skip_ms_page_8 = 1;
 	if (scsi_id->workarounds & SBP2_WORKAROUND_FIX_CAPACITY)
 		sdev->fix_capacity = 1;
+	if (scsi_id->ne->guid_vendor_id == 0x0010b9 && /* Maxtor's OUI */
+	    (sdev->type == TYPE_DISK || sdev->type == TYPE_RBC))
+		sdev->allow_restart = 1;
 	return 0;
 }
 
diff --git a/drivers/media/dvb/ttpci/budget-av.c b/drivers/media/dvb/ttpci/budget-av.c
index aaaae40..3f4aa08 100644
--- a/drivers/media/dvb/ttpci/budget-av.c
+++ b/drivers/media/dvb/ttpci/budget-av.c
@@ -58,6 +58,7 @@ struct budget_av {
 	struct tasklet_struct ciintf_irq_tasklet;
 	int slot_status;
 	struct dvb_ca_en50221 ca;
+	u8 reinitialise_demod:1;
 };
 
 /* GPIO Connections:
@@ -214,8 +215,9 @@ static int ciintf_slot_reset(struct dvb_
 	while (--timeout > 0 && ciintf_read_attribute_mem(ca, slot, 0) != 0x1d)
 		msleep(100);
 
-	/* reinitialise the frontend */
-	dvb_frontend_reinitialise(budget_av->budget.dvb_frontend);
+	/* reinitialise the frontend if necessary */
+	if (budget_av->reinitialise_demod)
+		dvb_frontend_reinitialise(budget_av->budget.dvb_frontend);
 
 	if (timeout <= 0)
 	{
@@ -1064,12 +1066,10 @@ static void frontend_init(struct budget_
 		fe = tda10021_attach(&philips_cu1216_config,
 				     &budget_av->budget.i2c_adap,
 				     read_pwm(budget_av));
-		if (fe) {
-			fe->ops.tuner_ops.set_params = philips_cu1216_tuner_set_params;
-		}
 		break;
 
 	case SUBID_DVBC_KNC1_PLUS:
+		budget_av->reinitialise_demod = 1;
 		fe = tda10021_attach(&philips_cu1216_config,
 				     &budget_av->budget.i2c_adap,
 				     read_pwm(budget_av));
diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c
index 523c2c9..c5e7023 100644
--- a/drivers/net/e1000/e1000_hw.c
+++ b/drivers/net/e1000/e1000_hw.c
@@ -353,6 +353,7 @@ e1000_set_mac_type(struct e1000_hw *hw)
     case E1000_DEV_ID_82572EI_COPPER:
     case E1000_DEV_ID_82572EI_FIBER:
     case E1000_DEV_ID_82572EI_SERDES:
+    case E1000_DEV_ID_82572EI:
         hw->mac_type = e1000_82572;
         break;
     case E1000_DEV_ID_82573E:
diff --git a/drivers/net/e1000/e1000_hw.h b/drivers/net/e1000/e1000_hw.h
index 150e45e..c01e5d2 100644
--- a/drivers/net/e1000/e1000_hw.h
+++ b/drivers/net/e1000/e1000_hw.h
@@ -462,6 +462,7 @@ #define E1000_DEV_ID_82571EB_SERDES     
 #define E1000_DEV_ID_82572EI_COPPER      0x107D
 #define E1000_DEV_ID_82572EI_FIBER       0x107E
 #define E1000_DEV_ID_82572EI_SERDES      0x107F
+#define E1000_DEV_ID_82572EI             0x10B9
 #define E1000_DEV_ID_82573E              0x108B
 #define E1000_DEV_ID_82573E_IAMT         0x108C
 #define E1000_DEV_ID_82573L              0x109A
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index fba1e4d..a3cd0b3 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -2187,9 +2187,6 @@ static int sky2_poll(struct net_device *
 	int work_done = 0;
 	u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
 
-	if (!~status)
-		goto out;
-
 	if (status & Y2_IS_HW_ERR)
 		sky2_hw_intr(hw);
 
@@ -2226,7 +2223,7 @@ static int sky2_poll(struct net_device *
 
 	if (sky2_more_work(hw))
 		return 1;
-out:
+
 	netif_rx_complete(dev0);
 
 	sky2_read32(hw, B0_Y2_SP_LISR);
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index a06d84c..27909bc 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -896,12 +896,14 @@ static int uhci_result_common(struct uhc
 			/*
 			 * This URB stopped short of its end.  We have to
 			 * fix up the toggles of the following URBs on the
-			 * queue and restart the queue.
+			 * queue and restart the queue.  But only if this
+			 * TD isn't the last one in the URB.
 			 *
 			 * Do this only the first time we encounter the
 			 * short URB.
 			 */
-			if (!urbp->short_transfer) {
+			if (!urbp->short_transfer &&
+					&td->list != urbp->td_list.prev) {
 				urbp->short_transfer = 1;
 				urbp->qh->initial_toggle =
 						uhci_toggle(td_token(td)) ^ 1;
diff --git a/fs/buffer.c b/fs/buffer.c
index 23f1f3a..7f6d659 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -473,13 +473,18 @@ out:
    pass does the actual I/O. */
 void invalidate_bdev(struct block_device *bdev, int destroy_dirty_buffers)
 {
+	struct address_space *mapping = bdev->bd_inode->i_mapping;
+
+	if (mapping->nrpages == 0)
+		return;
+
 	invalidate_bh_lrus();
 	/*
 	 * FIXME: what about destroy_dirty_buffers?
 	 * We really want to use invalidate_inode_pages2() for
 	 * that, but not until that's cleaned up.
 	 */
-	invalidate_inode_pages(bdev->bd_inode->i_mapping);
+	invalidate_inode_pages(mapping);
 }
 
 /*
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 2edd7ee..21b8bf4 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -1159,7 +1159,7 @@ retry:
 		ret = PTR_ERR(handle);
 		goto out;
 	}
-	if (test_opt(inode->i_sb, NOBH))
+	if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode))
 		ret = nobh_prepare_write(page, from, to, ext3_get_block);
 	else
 		ret = block_prepare_write(page, from, to, ext3_get_block);
@@ -1245,7 +1245,7 @@ static int ext3_writeback_commit_write(s
 	if (new_i_size > EXT3_I(inode)->i_disksize)
 		EXT3_I(inode)->i_disksize = new_i_size;
 
-	if (test_opt(inode->i_sb, NOBH))
+	if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode))
 		ret = nobh_commit_write(file, page, from, to);
 	else
 		ret = generic_commit_write(file, page, from, to);
@@ -1495,7 +1495,7 @@ static int ext3_writeback_writepage(stru
 		goto out_fail;
 	}
 
-	if (test_opt(inode->i_sb, NOBH))
+	if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode))
 		ret = nobh_writepage(page, ext3_get_block, wbc);
 	else
 		ret = block_write_full_page(page, ext3_get_block, wbc);
@@ -2402,14 +2402,15 @@ static unsigned long ext3_get_inode_bloc
 	struct buffer_head *bh;
 	struct ext3_group_desc * gdp;
 
-
-	if ((ino != EXT3_ROOT_INO && ino != EXT3_JOURNAL_INO &&
-		ino != EXT3_RESIZE_INO && ino < EXT3_FIRST_INO(sb)) ||
-		ino > le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count)) {
-		ext3_error(sb, "ext3_get_inode_block",
-			    "bad inode number: %lu", ino);
+	if (!ext3_valid_inum(sb, ino)) {
+		/*
+		 * This error is already checked for in namei.c unless we are
+		 * looking at an NFS filehandle, in which case no error
+		 * report is needed
+		 */
 		return 0;
 	}
+
 	block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
 	if (block_group >= EXT3_SB(sb)->s_groups_count) {
 		ext3_error(sb,"ext3_get_inode_block","group >= groups count");
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index b8f5cd1..7be89fe 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1000,7 +1000,12 @@ static struct dentry *ext3_lookup(struct
 	if (bh) {
 		unsigned long ino = le32_to_cpu(de->inode);
 		brelse (bh);
-		inode = iget(dir->i_sb, ino);
+		if (!ext3_valid_inum(dir->i_sb, ino)) {
+			ext3_error(dir->i_sb, "ext3_lookup",
+				   "bad inode number: %lu", ino);
+			inode = NULL;
+		} else
+			inode = iget(dir->i_sb, ino);
 
 		if (!inode)
 			return ERR_PTR(-EACCES);
@@ -1028,7 +1033,13 @@ struct dentry *ext3_get_parent(struct de
 		return ERR_PTR(-ENOENT);
 	ino = le32_to_cpu(de->inode);
 	brelse(bh);
-	inode = iget(child->d_inode->i_sb, ino);
+
+	if (!ext3_valid_inum(child->d_inode->i_sb, ino)) {
+		ext3_error(child->d_inode->i_sb, "ext3_get_parent",
+			   "bad inode number: %lu", ino);
+		inode = NULL;
+	} else
+		inode = iget(child->d_inode->i_sb, ino);
 
 	if (!inode)
 		return ERR_PTR(-EACCES);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index f801693..a3b825f 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -596,6 +596,27 @@ static int proc_permission(struct inode 
 	return proc_check_root(inode);
 }
 
+static int proc_setattr(struct dentry *dentry, struct iattr *attr)
+{
+	int error;
+	struct inode *inode = dentry->d_inode;
+
+	if (attr->ia_valid & ATTR_MODE)
+		return -EPERM;
+
+	error = inode_change_ok(inode, attr);
+	if (!error) {
+		error = security_inode_setattr(dentry, attr);
+		if (!error)
+			error = inode_setattr(inode, attr);
+	}
+	return error;
+}
+
+static struct inode_operations proc_def_inode_operations = {
+	.setattr	= proc_setattr,
+};
+
 static int proc_task_permission(struct inode *inode, int mask, struct nameidata *nd)
 {
 	struct dentry *root;
@@ -987,6 +1008,7 @@ static struct file_operations proc_oom_a
 
 static struct inode_operations proc_mem_inode_operations = {
 	.permission	= proc_permission,
+	.setattr	= proc_setattr,
 };
 
 #ifdef CONFIG_AUDITSYSCALL
@@ -1184,7 +1206,8 @@ out:
 
 static struct inode_operations proc_pid_link_inode_operations = {
 	.readlink	= proc_pid_readlink,
-	.follow_link	= proc_pid_follow_link
+	.follow_link	= proc_pid_follow_link,
+	.setattr	= proc_setattr,
 };
 
 #define NUMBUF 10
@@ -1356,6 +1379,7 @@ static struct inode *proc_pid_make_inode
 	ei->task = NULL;
 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
 	inode->i_ino = fake_ino(task->pid, ino);
+	inode->i_op = &proc_def_inode_operations;
 
 	if (!pid_alive(task))
 		goto out_unlock;
@@ -1579,11 +1603,13 @@ static struct file_operations proc_task_
 static struct inode_operations proc_fd_inode_operations = {
 	.lookup		= proc_lookupfd,
 	.permission	= proc_permission,
+	.setattr	= proc_setattr,
 };
 
 static struct inode_operations proc_task_inode_operations = {
 	.lookup		= proc_task_lookup,
 	.permission	= proc_task_permission,
+	.setattr	= proc_setattr,
 };
 
 #ifdef CONFIG_SECURITY
@@ -1873,10 +1899,12 @@ static struct file_operations proc_tid_b
 
 static struct inode_operations proc_tgid_base_inode_operations = {
 	.lookup		= proc_tgid_base_lookup,
+	.setattr	= proc_setattr,
 };
 
 static struct inode_operations proc_tid_base_inode_operations = {
 	.lookup		= proc_tid_base_lookup,
+	.setattr	= proc_setattr,
 };
 
 #ifdef CONFIG_SECURITY
@@ -1918,10 +1946,12 @@ static struct dentry *proc_tid_attr_look
 
 static struct inode_operations proc_tgid_attr_inode_operations = {
 	.lookup		= proc_tgid_attr_lookup,
+	.setattr	= proc_setattr,
 };
 
 static struct inode_operations proc_tid_attr_inode_operations = {
 	.lookup		= proc_tid_attr_lookup,
+	.setattr	= proc_setattr,
 };
 #endif
 
@@ -1946,6 +1976,7 @@ static void *proc_self_follow_link(struc
 static struct inode_operations proc_self_inode_operations = {
 	.readlink	= proc_self_readlink,
 	.follow_link	= proc_self_follow_link,
+	.setattr	= proc_setattr,
 };
 
 /**
diff --git a/include/asm-s390/futex.h b/include/asm-s390/futex.h
index 1802775..ffedf14 100644
--- a/include/asm-s390/futex.h
+++ b/include/asm-s390/futex.h
@@ -98,9 +98,10 @@ futex_atomic_cmpxchg_inatomic(int __user
 
 	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int)))
 		return -EFAULT;
-	asm volatile("   cs   %1,%4,0(%5)\n"
+	asm volatile("   sacf 256\n"
+		     "   cs   %1,%4,0(%5)\n"
 		     "0: lr   %0,%1\n"
-		     "1:\n"
+		     "1: sacf 0\n"
 #ifndef __s390x__
 		     ".section __ex_table,\"a\"\n"
 		     "   .align 4\n"
diff --git a/include/asm-sparc64/sfp-machine.h b/include/asm-sparc64/sfp-machine.h
index 5015bb8..89d4243 100644
--- a/include/asm-sparc64/sfp-machine.h
+++ b/include/asm-sparc64/sfp-machine.h
@@ -34,7 +34,7 @@ #define _FP_MUL_MEAT_S(R,X,Y)					\
 #define _FP_MUL_MEAT_D(R,X,Y)					\
   _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
 #define _FP_MUL_MEAT_Q(R,X,Y)					\
-  _FP_MUL_MEAT_2_wide_3mul(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
 
 #define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
 #define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_1_udiv_norm(D,R,X,Y)
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 3ade6a4..c60ca4c 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -495,6 +495,15 @@ static inline struct ext3_inode_info *EX
 {
 	return container_of(inode, struct ext3_inode_info, vfs_inode);
 }
+
+static inline int ext3_valid_inum(struct super_block *sb, unsigned long ino)
+{
+	return ino == EXT3_ROOT_INO ||
+		ino == EXT3_JOURNAL_INO ||
+		ino == EXT3_RESIZE_INO ||
+		(ino >= EXT3_FIRST_INO(sb) &&
+		 ino <= le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count));
+}
 #else
 /* Assume that user mode programs are passing in an ext3fs superblock, not
  * a kernel struct super_block.  This will allow us to call the feature-test
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f8f2347..2c31bb0 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -967,15 +967,16 @@ #ifndef NET_SKB_PAD
 #define NET_SKB_PAD	16
 #endif
 
-extern int ___pskb_trim(struct sk_buff *skb, unsigned int len, int realloc);
+extern int ___pskb_trim(struct sk_buff *skb, unsigned int len);
 
 static inline void __skb_trim(struct sk_buff *skb, unsigned int len)
 {
-	if (!skb->data_len) {
-		skb->len  = len;
-		skb->tail = skb->data + len;
-	} else
-		___pskb_trim(skb, len, 0);
+	if (unlikely(skb->data_len)) {
+		WARN_ON(1);
+		return;
+	}
+	skb->len  = len;
+	skb->tail = skb->data + len;
 }
 
 /**
@@ -985,6 +986,7 @@ static inline void __skb_trim(struct sk_
  *
  *	Cut the length of a buffer down by removing data from the tail. If
  *	the buffer is already under the length specified it is not modified.
+ *	The skb must be linear.
  */
 static inline void skb_trim(struct sk_buff *skb, unsigned int len)
 {
@@ -995,12 +997,10 @@ static inline void skb_trim(struct sk_bu
 
 static inline int __pskb_trim(struct sk_buff *skb, unsigned int len)
 {
-	if (!skb->data_len) {
-		skb->len  = len;
-		skb->tail = skb->data+len;
-		return 0;
-	}
-	return ___pskb_trim(skb, len, 1);
+	if (skb->data_len)
+		return ___pskb_trim(skb, len);
+	__skb_trim(skb, len);
+	return 0;
 }
 
 static inline int pskb_trim(struct sk_buff *skb, unsigned int len)
diff --git a/kernel/sched.c b/kernel/sched.c
index c13f1bd..61d1169 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4044,17 +4044,22 @@ asmlinkage long sys_sched_yield(void)
 	return 0;
 }
 
-static inline void __cond_resched(void)
+static inline int __resched_legal(int expected_preempt_count)
+{
+	if (unlikely(preempt_count() != expected_preempt_count))
+		return 0;
+	if (unlikely(system_state != SYSTEM_RUNNING))
+		return 0;
+	return 1;
+}
+
+static void __cond_resched(void)
 {
 	/*
 	 * The BKS might be reacquired before we have dropped
 	 * PREEMPT_ACTIVE, which could trigger a second
 	 * cond_resched() call.
 	 */
-	if (unlikely(preempt_count()))
-		return;
-	if (unlikely(system_state != SYSTEM_RUNNING))
-		return;
 	do {
 		add_preempt_count(PREEMPT_ACTIVE);
 		schedule();
@@ -4064,13 +4069,12 @@ static inline void __cond_resched(void)
 
 int __sched cond_resched(void)
 {
-	if (need_resched()) {
+	if (need_resched() && __resched_legal(0)) {
 		__cond_resched();
 		return 1;
 	}
 	return 0;
 }
-
 EXPORT_SYMBOL(cond_resched);
 
 /*
@@ -4091,7 +4095,7 @@ int cond_resched_lock(spinlock_t *lock)
 		ret = 1;
 		spin_lock(lock);
 	}
-	if (need_resched()) {
+	if (need_resched() && __resched_legal(1)) {
 		_raw_spin_unlock(lock);
 		preempt_enable_no_resched();
 		__cond_resched();
@@ -4100,14 +4104,13 @@ int cond_resched_lock(spinlock_t *lock)
 	}
 	return ret;
 }
-
 EXPORT_SYMBOL(cond_resched_lock);
 
 int __sched cond_resched_softirq(void)
 {
 	BUG_ON(!in_softirq());
 
-	if (need_resched()) {
+	if (need_resched() && __resched_legal(0)) {
 		__local_bh_enable();
 		__cond_resched();
 		local_bh_disable();
@@ -4115,10 +4118,8 @@ int __sched cond_resched_softirq(void)
 	}
 	return 0;
 }
-
 EXPORT_SYMBOL(cond_resched_softirq);
 
-
 /**
  * yield - yield the current processor to other threads.
  *
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 3948949..729abc4 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -67,10 +67,6 @@ static struct packet_type vlan_packet_ty
 	.func = vlan_skb_recv, /* VLAN receive method */
 };
 
-/* Bits of netdev state that are propagated from real device to virtual */
-#define VLAN_LINK_STATE_MASK \
-	((1<<__LINK_STATE_PRESENT)|(1<<__LINK_STATE_NOCARRIER)|(1<<__LINK_STATE_DORMANT))
-
 /* End of global variables definitions. */
 
 /*
@@ -470,7 +466,9 @@ #endif
 	new_dev->flags = real_dev->flags;
 	new_dev->flags &= ~IFF_UP;
 
-	new_dev->state = real_dev->state & ~(1<<__LINK_STATE_START);
+	new_dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
+					     (1<<__LINK_STATE_DORMANT))) |
+			 (1<<__LINK_STATE_PRESENT);
 
 	/* need 4 bytes for extra VLAN header info,
 	 * hope the underlying device can handle it.
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 0280535..dd0ae1b 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -251,11 +251,11 @@ nodata:
 }
 
 
-static void skb_drop_fraglist(struct sk_buff *skb)
+static void skb_drop_list(struct sk_buff **listp)
 {
-	struct sk_buff *list = skb_shinfo(skb)->frag_list;
+	struct sk_buff *list = *listp;
 
-	skb_shinfo(skb)->frag_list = NULL;
+	*listp = NULL;
 
 	do {
 		struct sk_buff *this = list;
@@ -264,6 +264,11 @@ static void skb_drop_fraglist(struct sk_
 	} while (list);
 }
 
+static inline void skb_drop_fraglist(struct sk_buff *skb)
+{
+	skb_drop_list(&skb_shinfo(skb)->frag_list);
+}
+
 static void skb_clone_fraglist(struct sk_buff *skb)
 {
 	struct sk_buff *list;
@@ -802,49 +807,86 @@ struct sk_buff *skb_pad(struct sk_buff *
 	return nskb;
 }	
  
-/* Trims skb to length len. It can change skb pointers, if "realloc" is 1.
- * If realloc==0 and trimming is impossible without change of data,
- * it is BUG().
+/* Trims skb to length len. It can change skb pointers.
  */
 
-int ___pskb_trim(struct sk_buff *skb, unsigned int len, int realloc)
+int ___pskb_trim(struct sk_buff *skb, unsigned int len)
 {
+	struct sk_buff **fragp;
+	struct sk_buff *frag;
 	int offset = skb_headlen(skb);
 	int nfrags = skb_shinfo(skb)->nr_frags;
 	int i;
+	int err;
 
-	for (i = 0; i < nfrags; i++) {
+	if (skb_cloned(skb) &&
+	    unlikely((err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC))))
+		return err;
+
+	i = 0;
+	if (offset >= len)
+		goto drop_pages;
+
+	for (; i < nfrags; i++) {
 		int end = offset + skb_shinfo(skb)->frags[i].size;
-		if (end > len) {
-			if (skb_cloned(skb)) {
-				BUG_ON(!realloc);
-				if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
-					return -ENOMEM;
-			}
-			if (len <= offset) {
-				put_page(skb_shinfo(skb)->frags[i].page);
-				skb_shinfo(skb)->nr_frags--;
-			} else {
-				skb_shinfo(skb)->frags[i].size = len - offset;
-			}
+
+		if (end < len) {
+			offset = end;
+			continue;
 		}
-		offset = end;
+
+		skb_shinfo(skb)->frags[i++].size = len - offset;
+
+drop_pages:
+		skb_shinfo(skb)->nr_frags = i;
+
+		for (; i < nfrags; i++)
+			put_page(skb_shinfo(skb)->frags[i].page);
+
+		if (skb_shinfo(skb)->frag_list)
+			skb_drop_fraglist(skb);
+		goto done;
+	}
+
+	for (fragp = &skb_shinfo(skb)->frag_list; (frag = *fragp);
+	     fragp = &frag->next) {
+		int end = offset + frag->len;
+
+		if (skb_shared(frag)) {
+			struct sk_buff *nfrag;
+
+			nfrag = skb_clone(frag, GFP_ATOMIC);
+			if (unlikely(!nfrag))
+				return -ENOMEM;
+
+			nfrag->next = frag->next;
+			kfree_skb(frag);
+			frag = nfrag;
+			*fragp = frag;
+		}
+
+		if (end < len) {
+			offset = end;
+			continue;
+		}
+
+		if (end > len &&
+		    unlikely((err = pskb_trim(frag, len - offset))))
+			return err;
+
+		if (frag->next)
+			skb_drop_list(&frag->next);
+		break;
 	}
 
-	if (offset < len) {
+done:
+	if (len > skb_headlen(skb)) {
 		skb->data_len -= skb->len - len;
 		skb->len       = len;
 	} else {
-		if (len <= skb_headlen(skb)) {
-			skb->len      = len;
-			skb->data_len = 0;
-			skb->tail     = skb->data + len;
-			if (skb_shinfo(skb)->frag_list && !skb_cloned(skb))
-				skb_drop_fraglist(skb);
-		} else {
-			skb->data_len -= skb->len - len;
-			skb->len       = len;
-		}
+		skb->len       = len;
+		skb->data_len  = 0;
+		skb->tail      = skb->data + len;
 	}
 
 	return 0;
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323.c b/net/ipv4/netfilter/ip_conntrack_helper_h323.c
index 518f581..853a3d5 100644
--- a/net/ipv4/netfilter/ip_conntrack_helper_h323.c
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323.c
@@ -1092,7 +1092,7 @@ static struct ip_conntrack_expect *find_
 	tuple.dst.protonum = IPPROTO_TCP;
 
 	exp = __ip_conntrack_expect_find(&tuple);
-	if (exp->master == ct)
+	if (exp && exp->master == ct)
 		return exp;
 	return NULL;
 }
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 7026b08..00cb388 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -71,7 +71,12 @@ struct cache_head *sunrpc_cache_lookup(s
 	new = detail->alloc();
 	if (!new)
 		return NULL;
+	/* must fully initialise 'new', else
+	 * we might get lose if we need to
+	 * cache_put it soon.
+	 */
 	cache_init(new);
+	detail->init(new, key);
 
 	write_lock(&detail->hash_lock);
 
@@ -85,7 +90,6 @@ struct cache_head *sunrpc_cache_lookup(s
 			return tmp;
 		}
 	}
-	detail->init(new, key);
 	new->next = *head;
 	*head = new;
 	detail->entries++;
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index ac990bf..785a2ac 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -1745,6 +1745,8 @@ static int snd_pcm_oss_open_file(struct 
 	for (idx = 0; idx < 2; idx++) {
 		if (setup[idx].disable)
 			continue;
+		if (! pcm->streams[idx].substream_count)
+			continue; /* no matching substream */
 		if (idx == SNDRV_PCM_STREAM_PLAYBACK) {
 			if (! (f_mode & FMODE_WRITE))
 				continue;