diff --git a/Documentation/DocBook/kernel-hacking.tmpl b/Documentation/DocBook/kernel-hacking.tmpl
index 6367bba..582032e 100644
--- a/Documentation/DocBook/kernel-hacking.tmpl
+++ b/Documentation/DocBook/kernel-hacking.tmpl
@@ -1105,7 +1105,7 @@
     </listitem>
     <listitem>
      <para>
-      Function names as strings (__func__).
+      Function names as strings (__FUNCTION__).
      </para>
     </listitem>
     <listitem>
diff --git a/MAINTAINERS b/MAINTAINERS
index dc8f3ba..ade7415 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2266,6 +2266,12 @@
 L:	pcihpd-discuss@lists.sourceforge.net
 S:	Maintained
 
+SKGE, SKY2 10/100/1000 GIGABIT ETHERNET DRIVERS
+P:	Stephen Hemminger
+M:	shemminger@osdl.org
+L:	netdev@vger.kernel.org
+S:	Maintained
+
 SPARC (sparc32):
 P:	William L. Irwin
 M:	wli@holomorphy.com
diff --git a/README b/README
index 76dd780..2b5844d 100644
--- a/README
+++ b/README
@@ -149,6 +149,9 @@
 	"make gconfig"     X windows (Gtk) based configuration tool.
 	"make oldconfig"   Default all questions based on the contents of
 			   your existing ./.config file.
+	"make silentoldconfig"
+			   Like above, but avoids cluttering the screen
+			   with question already answered.
    
 	NOTES on "make config":
 	- having unnecessary drivers will make the kernel bigger, and can
@@ -169,9 +172,6 @@
 	  should probably answer 'n' to the questions for
           "development", "experimental", or "debugging" features.
 
- - Check the top Makefile for further site-dependent configuration
-   (default SVGA mode etc). 
-
 COMPILING the kernel:
 
  - Make sure you have gcc 2.95.3 available.
@@ -199,6 +199,9 @@
    are installing a new kernel with the same version number as your
    working kernel, make a backup of your modules directory before you
    do a "make modules_install".
+   In alternative, before compiling, edit your Makefile and change the
+   "EXTRAVERSION" line - its content is appended to the regular kernel
+   version.
 
  - In order to boot your new kernel, you'll need to copy the kernel
    image (e.g. .../linux/arch/i386/boot/bzImage after compilation)
diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
index 17d2c1e..521c2a5 100644
--- a/arch/ppc64/Makefile
+++ b/arch/ppc64/Makefile
@@ -107,7 +107,7 @@
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
 
 defaultimage-$(CONFIG_PPC_PSERIES) := zImage
-defaultimage-$(CONFIG_PPC_PMAC) := vmlinux
+defaultimage-$(CONFIG_PPC_PMAC) := zImage.vmode
 defaultimage-$(CONFIG_PPC_MAPLE) := zImage
 defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux
 KBUILD_IMAGE := $(defaultimage-y)
diff --git a/arch/ppc64/kernel/pSeries_iommu.c b/arch/ppc64/kernel/pSeries_iommu.c
index f0fd7fb..8c6313e 100644
--- a/arch/ppc64/kernel/pSeries_iommu.c
+++ b/arch/ppc64/kernel/pSeries_iommu.c
@@ -265,8 +265,10 @@
 	tbl->it_offset = phb->dma_window_base_cur >> PAGE_SHIFT;
 	
 	/* Test if we are going over 2GB of DMA space */
-	if (phb->dma_window_base_cur + phb->dma_window_size > (1L << 31))
+	if (phb->dma_window_base_cur + phb->dma_window_size > 0x80000000ul) {
+		udbg_printf("PCI_DMA: Unexpected number of IOAs under this PHB.\n");
 		panic("PCI_DMA: Unexpected number of IOAs under this PHB.\n"); 
+	}
 	
 	phb->dma_window_base_cur += phb->dma_window_size;
 
@@ -310,92 +312,84 @@
 
 static void iommu_bus_setup_pSeries(struct pci_bus *bus)
 {
-	struct device_node *dn, *pdn;
-	struct pci_dn *pci;
+	struct device_node *dn;
 	struct iommu_table *tbl;
+	struct device_node *isa_dn, *isa_dn_orig;
+	struct device_node *tmp;
+	struct pci_dn *pci;
+	int children;
 
 	DBG("iommu_bus_setup_pSeries, bus %p, bus->self %p\n", bus, bus->self);
 
-	/* For each (root) bus, we carve up the available DMA space in 256MB
-	 * pieces. Since each piece is used by one (sub) bus/device, that would
-	 * give a maximum of 7 devices per PHB. In most cases, this is plenty.
+	dn = pci_bus_to_OF_node(bus);
+	pci = PCI_DN(dn);
+
+	if (bus->self) {
+		/* This is not a root bus, any setup will be done for the
+		 * device-side of the bridge in iommu_dev_setup_pSeries().
+		 */
+		return;
+	}
+
+	/* Check if the ISA bus on the system is under
+	 * this PHB.
+	 */
+	isa_dn = isa_dn_orig = of_find_node_by_type(NULL, "isa");
+
+	while (isa_dn && isa_dn != dn)
+		isa_dn = isa_dn->parent;
+
+	if (isa_dn_orig)
+		of_node_put(isa_dn_orig);
+
+	/* Count number of direct PCI children of the PHB.
+	 * All PCI device nodes have class-code property, so it's
+	 * an easy way to find them.
+	 */
+	for (children = 0, tmp = dn->child; tmp; tmp = tmp->sibling)
+		if (get_property(tmp, "class-code", NULL))
+			children++;
+
+	DBG("Children: %d\n", children);
+
+	/* Calculate amount of DMA window per slot. Each window must be
+	 * a power of two (due to pci_alloc_consistent requirements).
 	 *
-	 * The exception is on Python PHBs (pre-POWER4). Here we don't have EADS
-	 * bridges below the PHB to allocate the sectioned tables to, so instead
-	 * we allocate a 1GB table at the PHB level.
+	 * Keep 256MB aside for PHBs with ISA.
 	 */
 
-	dn = pci_bus_to_OF_node(bus);
-	pci = dn->data;
+	if (!isa_dn) {
+		/* No ISA/IDE - just set window size and return */
+		pci->phb->dma_window_size = 0x80000000ul; /* To be divided */
 
-	if (!bus->self) {
-		/* Root bus */
-		if (is_python(dn)) {
-			unsigned int *iohole;
+		while (pci->phb->dma_window_size * children > 0x80000000ul)
+			pci->phb->dma_window_size >>= 1;
+		DBG("No ISA/IDE, window size is %x\n", pci->phb->dma_window_size);
+		pci->phb->dma_window_base_cur = 0;
 
-			DBG("Python root bus %s\n", bus->name);
-
-			iohole = (unsigned int *)get_property(dn, "io-hole", 0);
-
-			if (iohole) {
-				/* On first bus we need to leave room for the
-				 * ISA address space. Just skip the first 256MB
-				 * alltogether. This leaves 768MB for the window.
-				 */
-				DBG("PHB has io-hole, reserving 256MB\n");
-				pci->phb->dma_window_size = 3 << 28;
-				pci->phb->dma_window_base_cur = 1 << 28;
-			} else {
-				/* 1GB window by default */
-				pci->phb->dma_window_size = 1 << 30;
-				pci->phb->dma_window_base_cur = 0;
-			}
-
-			tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
-
-			iommu_table_setparms(pci->phb, dn, tbl);
-			pci->iommu_table = iommu_init_table(tbl);
-		} else {
-			/* Do a 128MB table at root. This is used for the IDE
-			 * controller on some SMP-mode POWER4 machines. It
-			 * doesn't hurt to allocate it on other machines
-			 * -- it'll just be unused since new tables are
-			 * allocated on the EADS level.
-			 *
-			 * Allocate at offset 128MB to avoid having to deal
-			 * with ISA holes; 128MB table for IDE is plenty.
-			 */
-			pci->phb->dma_window_size = 1 << 27;
-			pci->phb->dma_window_base_cur = 1 << 27;
-
-			tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
-
-			iommu_table_setparms(pci->phb, dn, tbl);
-			pci->iommu_table = iommu_init_table(tbl);
-
-			/* All child buses have 256MB tables */
-			pci->phb->dma_window_size = 1 << 28;
-		}
-	} else {
-		pdn = pci_bus_to_OF_node(bus->parent);
-
-		if (!bus->parent->self && !is_python(pdn)) {
-			struct iommu_table *tbl;
-			/* First child and not python means this is the EADS
-			 * level. Allocate new table for this slot with 256MB
-			 * window.
-			 */
-
-			tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
-
-			iommu_table_setparms(pci->phb, dn, tbl);
-
-			pci->iommu_table = iommu_init_table(tbl);
-		} else {
-			/* Lower than first child or under python, use parent table */
-			pci->iommu_table = PCI_DN(pdn)->iommu_table;
-		}
+		return;
 	}
+
+	/* If we have ISA, then we probably have an IDE
+	 * controller too. Allocate a 128MB table but
+	 * skip the first 128MB to avoid stepping on ISA
+	 * space.
+	 */
+	pci->phb->dma_window_size = 0x8000000ul;
+	pci->phb->dma_window_base_cur = 0x8000000ul;
+
+	tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
+
+	iommu_table_setparms(pci->phb, dn, tbl);
+	pci->iommu_table = iommu_init_table(tbl);
+
+	/* Divide the rest (1.75GB) among the children */
+	pci->phb->dma_window_size = 0x80000000ul;
+	while (pci->phb->dma_window_size * children > 0x70000000ul)
+		pci->phb->dma_window_size >>= 1;
+
+	DBG("ISA/IDE, window size is %x\n", pci->phb->dma_window_size);
+
 }
 
 
@@ -446,14 +440,29 @@
 static void iommu_dev_setup_pSeries(struct pci_dev *dev)
 {
 	struct device_node *dn, *mydn;
+	struct iommu_table *tbl;
 
 	DBG("iommu_dev_setup_pSeries, dev %p (%s)\n", dev, dev->pretty_name);
-	/* Now copy the iommu_table ptr from the bus device down to the
-	 * pci device_node.  This means get_iommu_table() won't need to search
-	 * up the device tree to find it.
-	 */
+
 	mydn = dn = pci_device_to_OF_node(dev);
 
+	/* If we're the direct child of a root bus, then we need to allocate
+	 * an iommu table ourselves. The bus setup code should have setup
+	 * the window sizes already.
+	 */
+	if (!dev->bus->self) {
+		DBG(" --> first child, no bridge. Allocating iommu table.\n");
+		tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
+		iommu_table_setparms(PCI_DN(dn)->phb, dn, tbl);
+		PCI_DN(mydn)->iommu_table = iommu_init_table(tbl);
+
+		return;
+	}
+
+	/* If this device is further down the bus tree, search upwards until
+	 * an already allocated iommu table is found and use that.
+	 */
+
 	while (dn && dn->data && PCI_DN(dn)->iommu_table == NULL)
 		dn = dn->parent;
 
diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c
index 861138a..ff4be1d 100644
--- a/arch/ppc64/kernel/pci.c
+++ b/arch/ppc64/kernel/pci.c
@@ -246,11 +246,14 @@
 	unsigned int flags = 0;
 
 	if (addr0 & 0x02000000) {
-		flags |= IORESOURCE_MEM;
+		flags = IORESOURCE_MEM | PCI_BASE_ADDRESS_SPACE_MEMORY;
+		flags |= (addr0 >> 22) & PCI_BASE_ADDRESS_MEM_TYPE_64;
+		flags |= (addr0 >> 28) & PCI_BASE_ADDRESS_MEM_TYPE_1M;
 		if (addr0 & 0x40000000)
-			flags |= IORESOURCE_PREFETCH;
+			flags |= IORESOURCE_PREFETCH
+				 | PCI_BASE_ADDRESS_MEM_PREFETCH;
 	} else if (addr0 & 0x01000000)
-		flags |= IORESOURCE_IO;
+		flags = IORESOURCE_IO | PCI_BASE_ADDRESS_SPACE_IO;
 	return flags;
 }
 
diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c
index 9979919..f252670 100644
--- a/arch/ppc64/kernel/prom_init.c
+++ b/arch/ppc64/kernel/prom_init.c
@@ -1711,6 +1711,7 @@
 	unsigned long offset = reloc_offset();
 	unsigned long mem_start, mem_end, room;
 	struct boot_param_header *hdr;
+	struct prom_t *_prom = PTRRELOC(&prom);
 	char *namep;
 	u64 *rsvmap;
 
@@ -1765,6 +1766,7 @@
 	RELOC(dt_struct_end) = PAGE_ALIGN(mem_start);
 
 	/* Finish header */
+	hdr->boot_cpuid_phys = _prom->cpu;
 	hdr->magic = OF_DT_HEADER;
 	hdr->totalsize = RELOC(dt_struct_end) - RELOC(dt_header_start);
 	hdr->off_dt_struct = RELOC(dt_struct_start) - RELOC(dt_header_start);
@@ -1854,7 +1856,6 @@
 
 	cpu_pkg = call_prom("instance-to-package", 1, 1, prom_cpu);
 
-	prom_setprop(cpu_pkg, "linux,boot-cpu", NULL, 0);
 	prom_getprop(cpu_pkg, "reg", &getprop_rval, sizeof(getprop_rval));
 	_prom->cpu = getprop_rval;
 
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 0969d57..21afa69 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -308,7 +308,7 @@
 	  present.  The HPET provides a stable time base on SMP
 	  systems, unlike the TSC, but it is more expensive to access,
 	  as it is off-chip.  You can find the HPET spec at
-	  <http://www.intel.com/labs/platcomp/hpet/hpetspec.htm>.
+	  <http://www.intel.com/hardwaredesign/hpetspec.htm>.
 
 config X86_PM_TIMER
 	bool "PM timer"
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index c56f995..486b6e1 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -483,9 +483,6 @@
 	printk(KERN_DEBUG "cciss_open %s\n", inode->i_bdev->bd_disk->disk_name);
 #endif /* CCISS_DEBUG */ 
 
-	if (host->busy_initializing)
-		return -EBUSY;
-
 	if (host->busy_initializing || drv->busy_configuring)
 		return -EBUSY;
 	/*
@@ -2991,6 +2988,7 @@
 	hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_ON);
 
 	cciss_procinit(i);
+	hba[i]->busy_initializing = 0;
 
 	for(j=0; j < NWD; j++) { /* mfm */
 		drive_info_struct *drv = &(hba[i]->drv[j]);
@@ -3033,7 +3031,6 @@
 		add_disk(disk);
 	}
 
-	hba[i]->busy_initializing = 0;
 	return(1);
 
 clean4:
diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c
index 483d71b..baedac5 100644
--- a/drivers/block/ll_rw_blk.c
+++ b/drivers/block/ll_rw_blk.c
@@ -2373,44 +2373,6 @@
 
 EXPORT_SYMBOL(blkdev_issue_flush);
 
-/**
- * blkdev_scsi_issue_flush_fn - issue flush for SCSI devices
- * @q:		device queue
- * @disk:	gendisk
- * @error_sector:	error offset
- *
- * Description:
- *    Devices understanding the SCSI command set, can use this function as
- *    a helper for issuing a cache flush. Note: driver is required to store
- *    the error offset (in case of error flushing) in ->sector of struct
- *    request.
- */
-int blkdev_scsi_issue_flush_fn(request_queue_t *q, struct gendisk *disk,
-			       sector_t *error_sector)
-{
-	struct request *rq = blk_get_request(q, WRITE, __GFP_WAIT);
-	int ret;
-
-	rq->flags |= REQ_BLOCK_PC | REQ_SOFTBARRIER;
-	rq->sector = 0;
-	memset(rq->cmd, 0, sizeof(rq->cmd));
-	rq->cmd[0] = 0x35;
-	rq->cmd_len = 12;
-	rq->data = NULL;
-	rq->data_len = 0;
-	rq->timeout = 60 * HZ;
-
-	ret = blk_execute_rq(q, disk, rq, 0);
-
-	if (ret && error_sector)
-		*error_sector = rq->sector;
-
-	blk_put_request(rq);
-	return ret;
-}
-
-EXPORT_SYMBOL(blkdev_scsi_issue_flush_fn);
-
 static void drive_stat_acct(struct request *rq, int nr_sectors, int new_io)
 {
 	int rw = rq_data_dir(rq);
diff --git a/drivers/message/i2o/config-osm.c b/drivers/message/i2o/config-osm.c
index af32ab4..10432f6 100644
--- a/drivers/message/i2o/config-osm.c
+++ b/drivers/message/i2o/config-osm.c
@@ -56,8 +56,11 @@
 		return -EBUSY;
 	}
 #ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
-	if (i2o_config_old_init())
+	if (i2o_config_old_init()) {
+		osm_err("old config handler initialization failed\n");
 		i2o_driver_unregister(&i2o_config_driver);
+		return -EBUSY;
+	}
 #endif
 
 	return 0;
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 51b1d15..e2effe2 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -300,9 +300,9 @@
 	inode->i_blksize = sbi->cluster_size;
 	inode->i_blocks = ((inode->i_size + (sbi->cluster_size - 1))
 			   & ~((loff_t)sbi->cluster_size - 1)) >> 9;
-	inode->i_mtime.tv_sec = inode->i_atime.tv_sec =
+	inode->i_mtime.tv_sec =
 		date_dos2unix(le16_to_cpu(de->time), le16_to_cpu(de->date));
-	inode->i_mtime.tv_nsec = inode->i_atime.tv_nsec = 0;
+	inode->i_mtime.tv_nsec = 0;
 	if (sbi->options.isvfat) {
 		int secs = de->ctime_cs / 100;
 		int csecs = de->ctime_cs % 100;
@@ -310,8 +310,11 @@
 			date_dos2unix(le16_to_cpu(de->ctime),
 				      le16_to_cpu(de->cdate)) + secs;
 		inode->i_ctime.tv_nsec = csecs * 10000000;
+		inode->i_atime.tv_sec =
+			date_dos2unix(le16_to_cpu(0), le16_to_cpu(de->adate));
+		inode->i_atime.tv_nsec = 0;
 	} else
-		inode->i_ctime = inode->i_mtime;
+		inode->i_ctime = inode->i_atime = inode->i_mtime;
 
 	return 0;
 }
@@ -513,7 +516,9 @@
 	raw_entry->starthi = cpu_to_le16(MSDOS_I(inode)->i_logstart >> 16);
 	fat_date_unix2dos(inode->i_mtime.tv_sec, &raw_entry->time, &raw_entry->date);
 	if (sbi->options.isvfat) {
+		__le16 atime;
 		fat_date_unix2dos(inode->i_ctime.tv_sec,&raw_entry->ctime,&raw_entry->cdate);
+		fat_date_unix2dos(inode->i_atime.tv_sec,&atime,&raw_entry->adate);
 		raw_entry->ctime_cs = (inode->i_ctime.tv_sec & 1) * 100 +
 			inode->i_ctime.tv_nsec / 10000000;
 	}
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 23db452..fb34f88 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -340,6 +340,52 @@
 	return result;
 }
 
+
+/* Same as proc_root_link, but this addionally tries to get fs from other
+ * threads in the group */
+static int proc_task_root_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+{
+	struct fs_struct *fs;
+	int result = -ENOENT;
+	struct task_struct *leader = proc_task(inode);
+
+	task_lock(leader);
+	fs = leader->fs;
+	if (fs) {
+		atomic_inc(&fs->count);
+		task_unlock(leader);
+	} else {
+		/* Try to get fs from other threads */
+		task_unlock(leader);
+		struct task_struct *task = leader;
+		read_lock(&tasklist_lock);
+		if (pid_alive(task)) {
+			while ((task = next_thread(task)) != leader) {
+				task_lock(task);
+				fs = task->fs;
+				if (fs) {
+					atomic_inc(&fs->count);
+					task_unlock(task);
+					break;
+				}
+				task_unlock(task);
+			}
+		}
+		read_unlock(&tasklist_lock);
+	}
+
+	if (fs) {
+		read_lock(&fs->lock);
+		*mnt = mntget(fs->rootmnt);
+		*dentry = dget(fs->root);
+		read_unlock(&fs->lock);
+		result = 0;
+		put_fs_struct(fs);
+	}
+	return result;
+}
+
+
 #define MAY_PTRACE(task) \
 	(task == current || \
 	(task->parent == current && \
@@ -471,14 +517,14 @@
 
 /* permission checks */
 
-static int proc_check_root(struct inode *inode)
+/* If the process being read is separated by chroot from the reading process,
+ * don't let the reader access the threads.
+ */
+static int proc_check_chroot(struct dentry *root, struct vfsmount *vfsmnt)
 {
-	struct dentry *de, *base, *root;
-	struct vfsmount *our_vfsmnt, *vfsmnt, *mnt;
+	struct dentry *de, *base;
+	struct vfsmount *our_vfsmnt, *mnt;
 	int res = 0;
-
-	if (proc_root_link(inode, &root, &vfsmnt)) /* Ewww... */
-		return -ENOENT;
 	read_lock(&current->fs->lock);
 	our_vfsmnt = mntget(current->fs->rootmnt);
 	base = dget(current->fs->root);
@@ -511,6 +557,16 @@
 	goto exit;
 }
 
+static int proc_check_root(struct inode *inode)
+{
+	struct dentry *root;
+	struct vfsmount *vfsmnt;
+
+	if (proc_root_link(inode, &root, &vfsmnt)) /* Ewww... */
+		return -ENOENT;
+	return proc_check_chroot(root, vfsmnt);
+}
+
 static int proc_permission(struct inode *inode, int mask, struct nameidata *nd)
 {
 	if (generic_permission(inode, mask, NULL) != 0)
@@ -518,6 +574,20 @@
 	return proc_check_root(inode);
 }
 
+static int proc_task_permission(struct inode *inode, int mask, struct nameidata *nd)
+{
+	struct dentry *root;
+	struct vfsmount *vfsmnt;
+
+	if (generic_permission(inode, mask, NULL) != 0)
+		return -EACCES;
+
+	if (proc_task_root_link(inode, &root, &vfsmnt))
+		return -ENOENT;
+
+	return proc_check_chroot(root, vfsmnt);
+}
+
 extern struct seq_operations proc_pid_maps_op;
 static int maps_open(struct inode *inode, struct file *file)
 {
@@ -1419,7 +1489,7 @@
 
 static struct inode_operations proc_task_inode_operations = {
 	.lookup		= proc_task_lookup,
-	.permission	= proc_permission,
+	.permission	= proc_task_permission,
 };
 
 #ifdef CONFIG_SECURITY
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 82d7024..097b3a3 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -136,6 +136,7 @@
 #define VM_EXEC		0x00000004
 #define VM_SHARED	0x00000008
 
+/* mprotect() hardcodes VM_MAYREAD >> 4 == VM_READ, and so for r/w/x bits. */
 #define VM_MAYREAD	0x00000010	/* limits for mprotect() etc */
 #define VM_MAYWRITE	0x00000020
 #define VM_MAYEXEC	0x00000040
@@ -350,7 +351,8 @@
  * only one copy in memory, at most, normally.
  *
  * For the non-reserved pages, page_count(page) denotes a reference count.
- *   page_count() == 0 means the page is free.
+ *   page_count() == 0 means the page is free. page->lru is then used for
+ *   freelist management in the buddy allocator.
  *   page_count() == 1 means the page is used for exactly one purpose
  *   (e.g. a private data page of one process).
  *
@@ -376,10 +378,8 @@
  * attaches, plus 1 if `private' contains something, plus one for
  * the page cache itself.
  *
- * All pages belonging to an inode are in these doubly linked lists:
- * mapping->clean_pages, mapping->dirty_pages and mapping->locked_pages;
- * using the page->list list_head. These fields are also used for
- * freelist managemet (when page_count()==0).
+ * Instead of keeping dirty/clean pages in per address-space lists, we instead
+ * now tag pages as dirty/under writeback in the radix tree.
  *
  * There is also a per-mapping radix tree mapping index to the page
  * in memory if present. The tree is rooted at mapping->root.  
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 425f58c..a6f03e4 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -508,5 +508,7 @@
 
 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
 asmlinkage long sys_ioprio_get(int which, int who);
+asmlinkage long sys_set_mempolicy(int mode, unsigned long __user *nmask,
+					unsigned long maxnode);
 
 #endif
diff --git a/kernel/printk.c b/kernel/printk.c
index a967605..4b8f0f9 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -488,6 +488,11 @@
 
 __setup("time", printk_time_setup);
 
+__attribute__((weak)) unsigned long long printk_clock(void)
+{
+	return sched_clock();
+}
+
 /*
  * This is printk.  It can be called from any context.  We want it to work.
  * 
@@ -565,7 +570,7 @@
 					loglev_char = default_message_loglevel
 						+ '0';
 				}
-				t = sched_clock();
+				t = printk_clock();
 				nanosec_rem = do_div(t, 1000000000);
 				tlen = sprintf(tbuf,
 						"<%c>[%5lu.%06lu] ",
diff --git a/mm/mmap.c b/mm/mmap.c
index 8b8e05f..fa11d91 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1640,7 +1640,7 @@
 /*
  * Get rid of page table information in the indicated region.
  *
- * Called with the page table lock held.
+ * Called with the mm semaphore held.
  */
 static void unmap_region(struct mm_struct *mm,
 		struct vm_area_struct *vma, struct vm_area_struct *prev,
diff --git a/mm/mprotect.c b/mm/mprotect.c
index e9fbd01..57577f6 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -248,7 +248,8 @@
 
 		newflags = vm_flags | (vma->vm_flags & ~(VM_READ | VM_WRITE | VM_EXEC));
 
-		if ((newflags & ~(newflags >> 4)) & 0xf) {
+		/* newflags >> 4 shift VM_MAY% in place of VM_% */
+		if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {
 			error = -EACCES;
 			goto out;
 		}