---

yaml
---
r: 223353
b: refs/heads/master
c: 68a4ec9
h: refs/heads/master
i:
  223351: 6629be4
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c9bace7ca1e2aeb95754ebc92c8f88a9f215691d
+refs/heads/master: 68a4ec9c03461e94a9577cf499069621bb074833

trunk/Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 37
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc6
 NAME = Flesh-Eating Bats with Fangs
 
 # *DOCUMENTATION*

trunk/arch/x86/crypto/ghash-clmulni-intel_glue.c

@@ -10,6 +10,7 @@
  * by the Free Software Foundation.
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>

trunk/arch/x86/kernel/head_32.S

@@ -620,13 +620,13 @@ ENTRY(initial_code)
 __PAGE_ALIGNED_BSS
 	.align PAGE_SIZE_asm
 #ifdef CONFIG_X86_PAE
-initial_pg_pmd:
+ENTRY(initial_pg_pmd)
 	.fill 1024*KPMDS,4,0
 #else
 ENTRY(initial_page_table)
 	.fill 1024,4,0
 #endif
-initial_pg_fixmap:
+ENTRY(initial_pg_fixmap)
 	.fill 1024,4,0
 ENTRY(empty_zero_page)
 	.fill 4096,1,0

trunk/arch/x86/lguest/boot.c

@@ -531,7 +531,10 @@ static void lguest_write_cr3(unsigned long cr3)
 {
 	lguest_data.pgdir = cr3;
 	lazy_hcall1(LHCALL_NEW_PGTABLE, cr3);
-	cr3_changed = true;
+
+	/* These two page tables are simple, linear, and used during boot */
+	if (cr3 != __pa(swapper_pg_dir) && cr3 != __pa(initial_page_table))
+		cr3_changed = true;
 }
 
 static unsigned long lguest_read_cr3(void)
@@ -703,9 +706,9 @@ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval)
  * to forget all of them.  Fortunately, this is very rare.
  *
  * ... except in early boot when the kernel sets up the initial pagetables,
- * which makes booting astonishingly slow: 1.83 seconds!  So we don't even tell
- * the Host anything changed until we've done the first page table switch,
- * which brings boot back to 0.25 seconds.
+ * which makes booting astonishingly slow: 48 seconds!  So we don't even tell
+ * the Host anything changed until we've done the first real page table switch,
+ * which brings boot back to 4.3 seconds.
  */
 static void lguest_set_pte(pte_t *ptep, pte_t pteval)
 {
@@ -1002,7 +1005,7 @@ static void lguest_time_init(void)
 	clockevents_register_device(&lguest_clockevent);
 
 	/* Finally, we unblock the timer interrupt. */
-	enable_lguest_irq(0);
+	clear_bit(0, lguest_data.blocked_interrupts);
 }
 
 /*
@@ -1349,9 +1352,6 @@ __init void lguest_init(void)
 	 */
 	switch_to_new_gdt(0);
 
-	/* We actually boot with all memory mapped, but let's say 128MB. */
-	max_pfn_mapped = (128*1024*1024) >> PAGE_SHIFT;
-
 	/*
 	 * The Host<->Guest Switcher lives at the top of our address space, and
 	 * the Host told us how big it is when we made LGUEST_INIT hypercall:

trunk/arch/x86/lguest/i386_head.S

@@ -4,6 +4,7 @@
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
 #include <asm/processor-flags.h>
+#include <asm/pgtable.h>
 
 /*G:020
  * Our story starts with the kernel booting into startup_32 in
@@ -37,9 +38,113 @@ ENTRY(lguest_entry)
 	/* Set up the initial stack so we can run C code. */
 	movl $(init_thread_union+THREAD_SIZE),%esp
 
+	call init_pagetables
+
 	/* Jumps are relative: we're running __PAGE_OFFSET too low. */
 	jmp lguest_init+__PAGE_OFFSET
 
+/*
+ * Initialize page tables.  This creates a PDE and a set of page
+ * tables, which are located immediately beyond __brk_base.  The variable
+ * _brk_end is set up to point to the first "safe" location.
+ * Mappings are created both at virtual address 0 (identity mapping)
+ * and PAGE_OFFSET for up to _end.
+ *
+ * FIXME: This code is taken verbatim from arch/x86/kernel/head_32.S: they
+ * don't have a stack at this point, so we can't just use call and ret.
+ */
+init_pagetables:
+#if PTRS_PER_PMD > 1
+#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD)
+#else
+#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
+#endif
+#define pa(X) ((X) - __PAGE_OFFSET)
+
+/* Enough space to fit pagetables for the low memory linear map */
+MAPPING_BEYOND_END = \
+	PAGE_TABLE_SIZE(((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT) << PAGE_SHIFT
+#ifdef CONFIG_X86_PAE
+
+	/*
+	 * In PAE mode initial_page_table is statically defined to contain
+	 * enough entries to cover the VMSPLIT option (that is the top 1, 2 or 3
+	 * entries). The identity mapping is handled by pointing two PGD entries
+	 * to the first kernel PMD.
+	 *
+	 * Note the upper half of each PMD or PTE are always zero at this stage.
+	 */
+
+#define KPMDS (((-__PAGE_OFFSET) >> 30) & 3) /* Number of kernel PMDs */
+
+	xorl %ebx,%ebx				/* %ebx is kept at zero */
+
+	movl $pa(__brk_base), %edi
+	movl $pa(initial_pg_pmd), %edx
+	movl $PTE_IDENT_ATTR, %eax
+10:
+	leal PDE_IDENT_ATTR(%edi),%ecx		/* Create PMD entry */
+	movl %ecx,(%edx)			/* Store PMD entry */
+						/* Upper half already zero */
+	addl $8,%edx
+	movl $512,%ecx
+11:
+	stosl
+	xchgl %eax,%ebx
+	stosl
+	xchgl %eax,%ebx
+	addl $0x1000,%eax
+	loop 11b
+
+	/*
+	 * End condition: we must map up to the end + MAPPING_BEYOND_END.
+	 */
+	movl $pa(_end) + MAPPING_BEYOND_END + PTE_IDENT_ATTR, %ebp
+	cmpl %ebp,%eax
+	jb 10b
+1:
+	addl $__PAGE_OFFSET, %edi
+	movl %edi, pa(_brk_end)
+	shrl $12, %eax
+	movl %eax, pa(max_pfn_mapped)
+
+	/* Do early initialization of the fixmap area */
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
+	movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8)
+#else	/* Not PAE */
+
+page_pde_offset = (__PAGE_OFFSET >> 20);
+
+	movl $pa(__brk_base), %edi
+	movl $pa(initial_page_table), %edx
+	movl $PTE_IDENT_ATTR, %eax
+10:
+	leal PDE_IDENT_ATTR(%edi),%ecx		/* Create PDE entry */
+	movl %ecx,(%edx)			/* Store identity PDE entry */
+	movl %ecx,page_pde_offset(%edx)		/* Store kernel PDE entry */
+	addl $4,%edx
+	movl $1024, %ecx
+11:
+	stosl
+	addl $0x1000,%eax
+	loop 11b
+	/*
+	 * End condition: we must map up to the end + MAPPING_BEYOND_END.
+	 */
+	movl $pa(_end) + MAPPING_BEYOND_END + PTE_IDENT_ATTR, %ebp
+	cmpl %ebp,%eax
+	jb 10b
+	addl $__PAGE_OFFSET, %edi
+	movl %edi, pa(_brk_end)
+	shrl $12, %eax
+	movl %eax, pa(max_pfn_mapped)
+
+	/* Do early initialization of the fixmap area */
+	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
+	movl %eax,pa(initial_page_table+0xffc)
+#endif
+	ret
+
 /*G:055
  * We create a macro which puts the assembler code between lgstart_ and lgend_
  * markers.  These templates are put in the .text section: they can't be

trunk/drivers/input/evdev.c

@@ -534,76 +534,73 @@ static int handle_eviocgbit(struct input_dev *dev,
 }
 #undef OLD_KEY_MAX
 
-static int evdev_handle_get_keycode(struct input_dev *dev,
-				    void __user *p, size_t size)
+static int evdev_handle_get_keycode(struct input_dev *dev, void __user *p)
 {
-	struct input_keymap_entry ke;
+	struct input_keymap_entry ke = {
+		.len	= sizeof(unsigned int),
+		.flags	= 0,
+	};
+	int __user *ip = (int __user *)p;
 	int error;
 
-	memset(&ke, 0, sizeof(ke));
-
-	if (size == sizeof(unsigned int[2])) {
-		/* legacy case */
-		int __user *ip = (int __user *)p;
+	/* legacy case */
+	if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
+		return -EFAULT;
 
-		if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
-			return -EFAULT;
+	error = input_get_keycode(dev, &ke);
+	if (error)
+		return error;
 
-		ke.len = sizeof(unsigned int);
-		ke.flags = 0;
+	if (put_user(ke.keycode, ip + 1))
+		return -EFAULT;
 
-		error = input_get_keycode(dev, &ke);
-		if (error)
-			return error;
+	return 0;
+}
 
-		if (put_user(ke.keycode, ip + 1))
-			return -EFAULT;
+static int evdev_handle_get_keycode_v2(struct input_dev *dev, void __user *p)
+{
+	struct input_keymap_entry ke;
+	int error;
 
-	} else {
-		size = min(size, sizeof(ke));
+	if (copy_from_user(&ke, p, sizeof(ke)))
+		return -EFAULT;
 
-		if (copy_from_user(&ke, p, size))
-			return -EFAULT;
+	error = input_get_keycode(dev, &ke);
+	if (error)
+		return error;
 
-		error = input_get_keycode(dev, &ke);
-		if (error)
-			return error;
+	if (copy_to_user(p, &ke, sizeof(ke)))
+		return -EFAULT;
 
-		if (copy_to_user(p, &ke, size))
-			return -EFAULT;
-	}
 	return 0;
 }
 
-static int evdev_handle_set_keycode(struct input_dev *dev,
-				    void __user *p, size_t size)
+static int evdev_handle_set_keycode(struct input_dev *dev, void __user *p)
 {
-	struct input_keymap_entry ke;
-
-	memset(&ke, 0, sizeof(ke));
+	struct input_keymap_entry ke = {
+		.len	= sizeof(unsigned int),
+		.flags	= 0,
+	};
+	int __user *ip = (int __user *)p;
 
-	if (size == sizeof(unsigned int[2])) {
-		/* legacy case */
-		int __user *ip = (int __user *)p;
+	if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
+		return -EFAULT;
 
-		if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
-			return -EFAULT;
+	if (get_user(ke.keycode, ip + 1))
+		return -EFAULT;
 
-		if (get_user(ke.keycode, ip + 1))
-			return -EFAULT;
+	return input_set_keycode(dev, &ke);
+}
 
-		ke.len = sizeof(unsigned int);
-		ke.flags = 0;
+static int evdev_handle_set_keycode_v2(struct input_dev *dev, void __user *p)
+{
+	struct input_keymap_entry ke;
 
-	} else {
-		size = min(size, sizeof(ke));
+	if (copy_from_user(&ke, p, sizeof(ke)))
+		return -EFAULT;
 
-		if (copy_from_user(&ke, p, size))
-			return -EFAULT;
-
-		if (ke.len > sizeof(ke.scancode))
-			return -EINVAL;
-	}
+	if (ke.len > sizeof(ke.scancode))
+		return -EINVAL;
 
 	return input_set_keycode(dev, &ke);
 }
@@ -669,6 +666,18 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
 			return evdev_grab(evdev, client);
 		else
 			return evdev_ungrab(evdev, client);
+
+	case EVIOCGKEYCODE:
+		return evdev_handle_get_keycode(dev, p);
+
+	case EVIOCSKEYCODE:
+		return evdev_handle_set_keycode(dev, p);
+
+	case EVIOCGKEYCODE_V2:
+		return evdev_handle_get_keycode_v2(dev, p);
+
+	case EVIOCSKEYCODE_V2:
+		return evdev_handle_set_keycode_v2(dev, p);
 	}
 
 	size = _IOC_SIZE(cmd);
@@ -708,12 +717,6 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
 			return -EFAULT;
 
 		return error;
-
-	case EVIOC_MASK_SIZE(EVIOCGKEYCODE):
-		return evdev_handle_get_keycode(dev, p, size);
-
-	case EVIOC_MASK_SIZE(EVIOCSKEYCODE):
-		return evdev_handle_set_keycode(dev, p, size);
 	}
 
 	/* Multi-number variable-length handlers */

trunk/drivers/input/tablet/wacom_wac.c

@@ -1436,6 +1436,8 @@ static struct wacom_features wacom_features_0xD2 =
 	{ "Wacom Bamboo Craft",   WACOM_PKGLEN_BBFUN,     14720,  9200, 1023, 63, BAMBOO_PT };
 static struct wacom_features wacom_features_0xD3 =
 	{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN,     21648, 13530, 1023, 63, BAMBOO_PT };
+static const struct wacom_features wacom_features_0xD4 =
+	{ "Wacom Bamboo Pen",     WACOM_PKGLEN_BBFUN,     14720,  9200,  255, 63, BAMBOO_PT };
 static struct wacom_features wacom_features_0xD8 =
 	{ "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN,   21648, 13530, 1023, 63, BAMBOO_PT };
 static struct wacom_features wacom_features_0xDA =
@@ -1510,6 +1512,7 @@ const struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0xD1) },
 	{ USB_DEVICE_WACOM(0xD2) },
 	{ USB_DEVICE_WACOM(0xD3) },
+	{ USB_DEVICE_WACOM(0xD4) },
 	{ USB_DEVICE_WACOM(0xD8) },
 	{ USB_DEVICE_WACOM(0xDA) },
 	{ USB_DEVICE_WACOM(0xDB) },

trunk/fs/nilfs2/gcinode.c

@@ -176,7 +176,6 @@ int nilfs_gccache_wait_and_mark_dirty(struct buffer_head *bh)
 int nilfs_init_gcinode(struct inode *inode)
 {
 	struct nilfs_inode_info *ii = NILFS_I(inode);
-	struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs;
 
 	inode->i_mode = S_IFREG;
 	mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
@@ -186,14 +185,6 @@ int nilfs_init_gcinode(struct inode *inode)
 	ii->i_flags = 0;
 	nilfs_bmap_init_gc(ii->i_bmap);
 
-	/*
-	 * Add the inode to GC inode list. Garbage Collection
-	 * is serialized and no two processes manipulate the
-	 * list simultaneously.
-	 */
-	igrab(inode);
-	list_add(&NILFS_I(inode)->i_dirty, &nilfs->ns_gc_inodes);
-
 	return 0;
 }