Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6

.gitignore

@@ -49,6 +49,7 @@ include/linux/compile.h
 include/linux/version.h
 include/linux/utsrelease.h
 include/linux/bounds.h
+include/generated
 
 # stgit generated dirs
 patches-*

Documentation/kbuild/makefiles.txt

@@ -316,6 +316,16 @@ more details, with real examples.
 		#arch/m68k/fpsp040/Makefile
 		ldflags-y := -x
 
+    subdir-ccflags-y, subdir-asflags-y
+	The two flags listed above are similar to ccflags-y and as-falgs-y.
+	The difference is that the subdir- variants has effect for the kbuild
+	file where tey are present and all subdirectories.
+	Options specified using subdir-* are added to the commandline before
+	the options specified using the non-subdir variants.
+
+	Example:
+		subdir-ccflags-y := -Werror
+
     CFLAGS_$@, AFLAGS_$@
 
 	CFLAGS_$@ and AFLAGS_$@ only apply to commands in current

Documentation/lguest/.gitignore

@@ -0,0 +1 @@
+lguest

Documentation/lguest/lguest.txt

@@ -3,11 +3,11 @@
  /,    /`      - or, A Young Coder's Illustrated Hypervisor
  \\"--\\    http://lguest.ozlabs.org
 
-Lguest is designed to be a minimal hypervisor for the Linux kernel, for
-Linux developers and users to experiment with virtualization with the
-minimum of complexity.  Nonetheless, it should have sufficient
-features to make it useful for specific tasks, and, of course, you are
-encouraged to fork and enhance it (see drivers/lguest/README).
+Lguest is designed to be a minimal 32-bit x86 hypervisor for the Linux kernel,
+for Linux developers and users to experiment with virtualization with the
+minimum of complexity.  Nonetheless, it should have sufficient features to
+make it useful for specific tasks, and, of course, you are encouraged to fork
+and enhance it (see drivers/lguest/README).
 
 Features:
 
@@ -37,6 +37,7 @@ Running Lguest:
      "Paravirtualized guest support" = Y
         "Lguest guest support" = Y
      "High Memory Support" = off/4GB
+     "PAE (Physical Address Extension) Support" = N
      "Alignment value to which kernel should be aligned" = 0x100000
         (CONFIG_PARAVIRT=y, CONFIG_LGUEST_GUEST=y, CONFIG_HIGHMEM64G=n and
          CONFIG_PHYSICAL_ALIGN=0x100000)

MAINTAINERS

@@ -1287,6 +1287,14 @@ S:	Maintained
 F:	Documentation/video4linux/bttv/
 F:	drivers/media/video/bt8xx/bttv*
 
+CACHEFILES: FS-CACHE BACKEND FOR CACHING ON MOUNTED FILESYSTEMS
+P:	David Howells
+M:	dhowells@redhat.com
+L:	linux-cachefs@redhat.com
+S:	Supported
+F:	Documentation/filesystems/caching/cachefiles.txt
+F:	fs/cachefiles/
+
 CAFE CMOS INTEGRATED CAMERA CONTROLLER DRIVER
 P:	Jonathan Corbet
 M:	corbet@lwn.net
@@ -2325,6 +2333,15 @@ F:	Documentation/power/freezing-of-tasks.txt
 F:	include/linux/freezer.h
 F:	kernel/freezer.c
 
+FS-CACHE: LOCAL CACHING FOR NETWORK FILESYSTEMS
+P:	David Howells
+M:	dhowells@redhat.com
+L:	linux-cachefs@redhat.com
+S:	Supported
+F:	Documentation/filesystems/caching/
+F:	fs/fscache/
+F:	include/linux/fscache*.h
+
 FTRACE
 P:	Steven Rostedt
 M:	rostedt@goodmis.org
@@ -5235,7 +5252,12 @@ M:	perex@perex.cz
 P:	Takashi Iwai
 M:	tiwai@suse.de
 L:	alsa-devel@alsa-project.org (subscribers-only)
+W:	http://www.alsa-project.org/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git
+T:	git git://git.alsa-project.org/alsa-kernel.git
 S:	Maintained
+F:	Documentation/sound/
+F:	include/sound/
 F:	sound/
 
 SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC)

Makefile

@@ -1200,7 +1200,7 @@ CLEAN_FILES +=	vmlinux System.map \
                 .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map
 
 # Directories & files removed with 'make mrproper'
-MRPROPER_DIRS  += include/config include2 usr/include
+MRPROPER_DIRS  += include/config include2 usr/include include/generated
 MRPROPER_FILES += .config .config.old include/asm .version .old_version \
                   include/linux/autoconf.h include/linux/version.h      \
                   include/linux/utsrelease.h                            \

arch/frv/kernel/setup.c

@@ -46,7 +46,6 @@
 #include <asm/io.h>
 
 #ifdef CONFIG_BLK_DEV_INITRD
-#include <linux/blk.h>
 #include <asm/pgtable.h>
 #endif
 

arch/x86/include/asm/lguest_hcall.h

@@ -5,7 +5,6 @@
 #define LHCALL_FLUSH_ASYNC	0
 #define LHCALL_LGUEST_INIT	1
 #define LHCALL_SHUTDOWN		2
-#define LHCALL_LOAD_GDT		3
 #define LHCALL_NEW_PGTABLE	4
 #define LHCALL_FLUSH_TLB	5
 #define LHCALL_LOAD_IDT_ENTRY	6
@@ -17,6 +16,7 @@
 #define LHCALL_SET_PMD		15
 #define LHCALL_LOAD_TLS		16
 #define LHCALL_NOTIFY		17
+#define LHCALL_LOAD_GDT_ENTRY	18
 
 #define LGUEST_TRAP_ENTRY 0x1F
 

arch/x86/lguest/boot.c

@@ -273,15 +273,15 @@ static void lguest_load_idt(const struct desc_ptr *desc)
  * controls the entire thing and the Guest asks it to make changes using the
  * LOAD_GDT hypercall.
  *
- * This is the opposite of the IDT code where we have a LOAD_IDT_ENTRY
- * hypercall and use that repeatedly to load a new IDT.  I don't think it
- * really matters, but wouldn't it be nice if they were the same?  Wouldn't
- * it be even better if you were the one to send the patch to fix it?
+ * This is the exactly like the IDT code.
  */
 static void lguest_load_gdt(const struct desc_ptr *desc)
 {
-	BUG_ON((desc->size + 1) / 8 != GDT_ENTRIES);
-	kvm_hypercall2(LHCALL_LOAD_GDT, __pa(desc->address), GDT_ENTRIES);
+	unsigned int i;
+	struct desc_struct *gdt = (void *)desc->address;
+
+	for (i = 0; i < (desc->size+1)/8; i++)
+		kvm_hypercall3(LHCALL_LOAD_GDT_ENTRY, i, gdt[i].a, gdt[i].b);
 }
 
 /* For a single GDT entry which changes, we do the lazy thing: alter our GDT,
@@ -291,7 +291,9 @@ static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
 				   const void *desc, int type)
 {
 	native_write_gdt_entry(dt, entrynum, desc, type);
-	kvm_hypercall2(LHCALL_LOAD_GDT, __pa(dt), GDT_ENTRIES);
+	/* Tell Host about this new entry. */
+	kvm_hypercall3(LHCALL_LOAD_GDT_ENTRY, entrynum,
+		       dt[entrynum].a, dt[entrynum].b);
 }
 
 /* OK, I lied.  There are three "thread local storage" GDT entries which change

drivers/acpi/sleep.c

@@ -300,9 +300,9 @@ static int acpi_suspend_state_valid(suspend_state_t pm_state)
 static struct platform_suspend_ops acpi_suspend_ops = {
 	.valid = acpi_suspend_state_valid,
 	.begin = acpi_suspend_begin,
-	.prepare = acpi_pm_prepare,
+	.prepare_late = acpi_pm_prepare,
 	.enter = acpi_suspend_enter,
-	.finish = acpi_pm_finish,
+	.wake = acpi_pm_finish,
 	.end = acpi_pm_end,
 };
 
@@ -328,9 +328,9 @@ static int acpi_suspend_begin_old(suspend_state_t pm_state)
 static struct platform_suspend_ops acpi_suspend_ops_old = {
 	.valid = acpi_suspend_state_valid,
 	.begin = acpi_suspend_begin_old,
-	.prepare = acpi_pm_disable_gpes,
+	.prepare_late = acpi_pm_disable_gpes,
 	.enter = acpi_suspend_enter,
-	.finish = acpi_pm_finish,
+	.wake = acpi_pm_finish,
 	.end = acpi_pm_end,
 	.recover = acpi_pm_finish,
 };

drivers/base/core.c

@@ -891,7 +891,8 @@ int device_add(struct device *dev)
 		set_dev_node(dev, dev_to_node(parent));
 
 	/* first, register with generic layer. */
-	error = kobject_add(&dev->kobj, dev->kobj.parent, "%s", dev_name(dev));
+	/* we require the name to be set before, and pass NULL */
+	error = kobject_add(&dev->kobj, dev->kobj.parent, NULL);
 	if (error)
 		goto Error;
 

drivers/char/agp/generic.c

@@ -1226,7 +1226,7 @@ int agp_generic_alloc_pages(struct agp_bridge_data *bridge, struct agp_memory *m
 	int i, ret = -ENOMEM;
 
 	for (i = 0; i < num_pages; i++) {
-		page = alloc_page(GFP_KERNEL | GFP_DMA32);
+		page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
 		/* agp_free_memory() needs gart address */
 		if (page == NULL)
 			goto out;
@@ -1257,7 +1257,7 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge)
 {
 	struct page * page;
 
-	page = alloc_page(GFP_KERNEL | GFP_DMA32);
+	page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
 	if (page == NULL)
 		return NULL;
 

drivers/char/vt.c

@@ -2274,7 +2274,7 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co
 				    continue; /* nothing to display */
 				}
 				/* Glyph not found */
-				if ((!(vc->vc_utf && !vc->vc_disp_ctrl) && c < 128) && !(c & ~charmask)) {
+				if ((!(vc->vc_utf && !vc->vc_disp_ctrl) || c < 128) && !(c & ~charmask)) {
 				    /* In legacy mode use the glyph we get by a 1:1 mapping.
 				       This would make absolutely no sense with Unicode in mind,
 				       but do this for ASCII characters since a font may lack

drivers/gpu/drm/drm_stub.c

@@ -159,6 +159,9 @@ void drm_master_put(struct drm_master **master)
 int drm_setmaster_ioctl(struct drm_device *dev, void *data,
 			struct drm_file *file_priv)
 {
+	if (file_priv->is_master)
+		return 0;
+
 	if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
 		return -EINVAL;
 
@@ -169,6 +172,7 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data,
 	    file_priv->minor->master != file_priv->master) {
 		mutex_lock(&dev->struct_mutex);
 		file_priv->minor->master = drm_master_get(file_priv->master);
+		file_priv->is_master = 1;
 		mutex_unlock(&dev->struct_mutex);
 	}
 
@@ -178,10 +182,15 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data,
 int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
 			 struct drm_file *file_priv)
 {
-	if (!file_priv->master)
+	if (!file_priv->is_master)
 		return -EINVAL;
+
+	if (!file_priv->minor->master)
+		return -EINVAL;
+
 	mutex_lock(&dev->struct_mutex);
 	drm_master_put(&file_priv->minor->master);
+	file_priv->is_master = 0;
 	mutex_unlock(&dev->struct_mutex);
 	return 0;
 }

drivers/gpu/drm/drm_sysfs.c

@@ -132,6 +132,7 @@ void drm_sysfs_destroy(void)
  */
 static void drm_sysfs_device_release(struct device *dev)
 {
+	memset(dev, 0, sizeof(struct device));
 	return;
 }
 

drivers/gpu/drm/via/via_dma.c

@@ -481,11 +481,13 @@ static int via_wait_idle(drm_via_private_t * dev_priv)
 {
 	int count = 10000000;
 
-	while (!(VIA_READ(VIA_REG_STATUS) & VIA_VR_QUEUE_BUSY) && count--);
+	while (!(VIA_READ(VIA_REG_STATUS) & VIA_VR_QUEUE_BUSY) && --count)
+		;
 
-	while (count-- && (VIA_READ(VIA_REG_STATUS) &
+	while (count && (VIA_READ(VIA_REG_STATUS) &
 			   (VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY |
-			    VIA_3D_ENG_BUSY))) ;
+			    VIA_3D_ENG_BUSY)))
+		--count;
 	return count;
 }
 
@@ -705,7 +707,7 @@ static int via_cmdbuf_size(struct drm_device *dev, void *data, struct drm_file *
 	switch (d_siz->func) {
 	case VIA_CMDBUF_SPACE:
 		while (((tmp_size = via_cmdbuf_space(dev_priv)) < d_siz->size)
-		       && count--) {
+		       && --count) {
 			if (!d_siz->wait) {
 				break;
 			}
@@ -717,7 +719,7 @@ static int via_cmdbuf_size(struct drm_device *dev, void *data, struct drm_file *
 		break;
 	case VIA_CMDBUF_LAG:
 		while (((tmp_size = via_cmdbuf_lag(dev_priv)) > d_siz->size)
-		       && count--) {
+		       && --count) {
 			if (!d_siz->wait) {
 				break;
 			}

drivers/lguest/lg.h

@@ -158,7 +158,8 @@ void free_interrupts(void);
 /* segments.c: */
 void setup_default_gdt_entries(struct lguest_ro_state *state);
 void setup_guest_gdt(struct lg_cpu *cpu);
-void load_guest_gdt(struct lg_cpu *cpu, unsigned long table, u32 num);
+void load_guest_gdt_entry(struct lg_cpu *cpu, unsigned int i,
+			  u32 low, u32 hi);
 void guest_load_tls(struct lg_cpu *cpu, unsigned long tls_array);
 void copy_gdt(const struct lg_cpu *cpu, struct desc_struct *gdt);
 void copy_gdt_tls(const struct lg_cpu *cpu, struct desc_struct *gdt);

drivers/lguest/segments.c

@@ -144,18 +144,19 @@ void copy_gdt(const struct lg_cpu *cpu, struct desc_struct *gdt)
 			gdt[i] = cpu->arch.gdt[i];
 }
 
-/*H:620 This is where the Guest asks us to load a new GDT (LHCALL_LOAD_GDT).
- * We copy it from the Guest and tweak the entries. */
-void load_guest_gdt(struct lg_cpu *cpu, unsigned long table, u32 num)
+/*H:620 This is where the Guest asks us to load a new GDT entry
+ * (LHCALL_LOAD_GDT_ENTRY).  We tweak the entry and copy it in. */
+void load_guest_gdt_entry(struct lg_cpu *cpu, u32 num, u32 lo, u32 hi)
 {
 	/* We assume the Guest has the same number of GDT entries as the
 	 * Host, otherwise we'd have to dynamically allocate the Guest GDT. */
 	if (num > ARRAY_SIZE(cpu->arch.gdt))
 		kill_guest(cpu, "too many gdt entries %i", num);
 
-	/* We read the whole thing in, then fix it up. */
-	__lgread(cpu, cpu->arch.gdt, table, num * sizeof(cpu->arch.gdt[0]));
-	fixup_gdt_table(cpu, 0, ARRAY_SIZE(cpu->arch.gdt));
+	/* Set it up, then fix it. */
+	cpu->arch.gdt[num].a = lo;
+	cpu->arch.gdt[num].b = hi;
+	fixup_gdt_table(cpu, num, num+1);
 	/* Mark that the GDT changed so the core knows it has to copy it again,
 	 * even if the Guest is run on the same CPU. */
 	cpu->changed |= CHANGED_GDT;

drivers/lguest/x86/core.c

@@ -324,6 +324,11 @@ static void rewrite_hypercall(struct lg_cpu *cpu)
 	u8 insn[3] = {0xcd, 0x1f, 0x90};
 
 	__lgwrite(cpu, guest_pa(cpu, cpu->regs->eip), insn, sizeof(insn));
+	/* The above write might have caused a copy of that page to be made
+	 * (if it was read-only).  We need to make sure the Guest has
+	 * up-to-date pagetables.  As this doesn't happen often, we can just
+	 * drop them all. */
+	guest_pagetable_clear_all(cpu);
 }
 
 static bool is_hypercall(struct lg_cpu *cpu)
@@ -563,8 +568,8 @@ void __exit lguest_arch_host_fini(void)
 int lguest_arch_do_hcall(struct lg_cpu *cpu, struct hcall_args *args)
 {
 	switch (args->arg0) {
-	case LHCALL_LOAD_GDT:
-		load_guest_gdt(cpu, args->arg1, args->arg2);
+	case LHCALL_LOAD_GDT_ENTRY:
+		load_guest_gdt_entry(cpu, args->arg1, args->arg2, args->arg3);
 		break;
 	case LHCALL_LOAD_IDT_ENTRY:
 		load_guest_idt_entry(cpu, args->arg1, args->arg2, args->arg3);

drivers/md/bitmap.c

@@ -1479,6 +1479,7 @@ void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector)
 		s += blocks;
 	}
 	bitmap->last_end_sync = jiffies;
+	sysfs_notify(&bitmap->mddev->kobj, NULL, "sync_completed");
 }
 
 static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int needed)
@@ -1589,7 +1590,7 @@ void bitmap_destroy(mddev_t *mddev)
 int bitmap_create(mddev_t *mddev)
 {
 	struct bitmap *bitmap;
-	unsigned long blocks = mddev->resync_max_sectors;
+	sector_t blocks = mddev->resync_max_sectors;
 	unsigned long chunks;
 	unsigned long pages;
 	struct file *file = mddev->bitmap_file;
@@ -1631,8 +1632,8 @@ int bitmap_create(mddev_t *mddev)
 	bitmap->chunkshift = ffz(~bitmap->chunksize);
 
 	/* now that chunksize and chunkshift are set, we can use these macros */
- 	chunks = (blocks + CHUNK_BLOCK_RATIO(bitmap) - 1) /
-			CHUNK_BLOCK_RATIO(bitmap);
+ 	chunks = (blocks + CHUNK_BLOCK_RATIO(bitmap) - 1) >>
+			CHUNK_BLOCK_SHIFT(bitmap);
  	pages = (chunks + PAGE_COUNTER_RATIO - 1) / PAGE_COUNTER_RATIO;
 
 	BUG_ON(!pages);