From 9d14a48b2adf3bd8fc3c2a429a920279c58a7be5 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 21 Sep 2011 13:35:00 -0700
Subject: [PATCH] --- yaml --- r: 264066 b: refs/heads/master c:
 e5b26a88f13dfe3162acd50490c0c8504af81b26 h: refs/heads/master v: v3

---
 [refs]                                        |  2 +-
 trunk/arch/arm/boot/dts/tegra-harmony.dts     | 12 +--
 trunk/arch/arm/boot/dts/tegra-seaboard.dts    |  6 +-
 trunk/arch/arm/mach-dove/common.c             |  2 +-
 trunk/arch/arm/mach-exynos4/clock.c           |  2 +-
 trunk/arch/arm/mach-exynos4/mct.c             | 10 ++-
 trunk/arch/arm/mach-exynos4/platsmp.c         |  2 +
 trunk/arch/arm/mach-exynos4/setup-keypad.c    | 11 +--
 .../arch/arm/mach-integrator/integrator_ap.c  |  2 +
 trunk/arch/arm/mach-integrator/pci_v3.c       |  2 -
 trunk/arch/arm/mach-s3c64xx/mach-smdk6410.c   | 39 ---------
 trunk/arch/arm/plat-samsung/clock.c           | 11 +++
 .../arm/plat-samsung/include/plat/clock.h     |  8 ++
 .../include/plat/watchdog-reset.h             | 10 +--
 trunk/block/blk-cgroup.c                      | 37 ++++-----
 trunk/block/blk-core.c                        | 15 ++--
 trunk/block/blk-softirq.c                     |  2 +-
 trunk/block/blk-sysfs.c                       | 10 ++-
 trunk/block/cfq-iosched.c                     | 20 ++---
 trunk/drivers/block/floppy.c                  |  8 +-
 trunk/drivers/block/xen-blkback/common.h      |  2 +-
 trunk/drivers/block/xen-blkback/xenbus.c      |  6 +-
 trunk/drivers/mmc/card/block.c                |  3 +
 trunk/drivers/staging/zcache/zcache-main.c    |  2 +-
 trunk/drivers/watchdog/hpwdt.c                |  9 ++-
 trunk/drivers/watchdog/lantiq_wdt.c           |  8 +-
 trunk/drivers/watchdog/sbc_epx_c3.c           |  2 +-
 trunk/drivers/watchdog/watchdog_dev.c         | 14 ++--
 trunk/fs/btrfs/ioctl.c                        |  7 +-
 trunk/fs/cifs/cifsencrypt.c                   | 54 +++----------
 trunk/fs/cifs/cifsfs.c                        | 10 ++-
 trunk/fs/cifs/cifssmb.c                       |  3 +-
 trunk/fs/cifs/connect.c                       |  4 +-
 trunk/fs/ext3/inode.c                         |  4 +-
 trunk/fs/ext3/namei.c                         |  3 +-
 trunk/fs/ext4/inode.c                         |  4 +-
 trunk/fs/ext4/namei.c                         |  3 +-
 trunk/fs/gfs2/log.c                           |  4 +-
 trunk/fs/gfs2/meta_io.c                       |  6 +-
 trunk/fs/gfs2/ops_fstype.c                    |  2 +-
 trunk/fs/gfs2/quota.c                         |  2 +-
 trunk/fs/proc/task_mmu.c                      | 80 +++++++++++++------
 trunk/include/linux/blk_types.h               |  6 +-
 trunk/include/linux/blkdev.h                  |  1 -
 trunk/include/linux/fs.h                      |  2 -
 trunk/init/main.c                             | 15 +++-
 trunk/mm/backing-dev.c                        | 30 ++++---
 trunk/sound/pci/hda/patch_realtek.c           |  9 ++-
 trunk/sound/pci/hda/patch_sigmatel.c          |  1 +
 49 files changed, 264 insertions(+), 243 deletions(-)

diff --git a/[refs] b/[refs]
index fc7e9f99bc32..2c2339057dfe 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bcf66bf54aabffc150acd1c99e0f4bc51935eada
+refs/heads/master: e5b26a88f13dfe3162acd50490c0c8504af81b26
diff --git a/trunk/arch/arm/boot/dts/tegra-harmony.dts b/trunk/arch/arm/boot/dts/tegra-harmony.dts
index 4c053340ce33..e5818668d091 100644
--- a/trunk/arch/arm/boot/dts/tegra-harmony.dts
+++ b/trunk/arch/arm/boot/dts/tegra-harmony.dts
@@ -57,14 +57,14 @@
 	};
 
 	sdhci@c8000200 {
-		gpios = <&gpio 69 0>, /* cd, gpio PI5 */
-			<&gpio 57 0>, /* wp, gpio PH1 */
-			<&gpio 155 0>; /* power, gpio PT3 */
+		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
+		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
+		power-gpios = <&gpio 155 0>; /* gpio PT3 */
 	};
 
 	sdhci@c8000600 {
-		gpios = <&gpio 58 0>, /* cd, gpio PH2 */
-			<&gpio 59 0>, /* wp, gpio PH3 */
-			<&gpio 70 0>; /* power, gpio PI6 */
+		cd-gpios = <&gpio 58 0>; /* gpio PH2 */
+		wp-gpios = <&gpio 59 0>; /* gpio PH3 */
+		power-gpios = <&gpio 70 0>; /* gpio PI6 */
 	};
 };
diff --git a/trunk/arch/arm/boot/dts/tegra-seaboard.dts b/trunk/arch/arm/boot/dts/tegra-seaboard.dts
index 1940cae00748..64cedca6fc79 100644
--- a/trunk/arch/arm/boot/dts/tegra-seaboard.dts
+++ b/trunk/arch/arm/boot/dts/tegra-seaboard.dts
@@ -21,8 +21,8 @@
 	};
 
 	sdhci@c8000400 {
-		gpios = <&gpio 69 0>, /* cd, gpio PI5 */
-			<&gpio 57 0>, /* wp, gpio PH1 */
-			<&gpio 70 0>; /* power, gpio PI6 */
+		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
+		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
+		power-gpios = <&gpio 70 0>; /* gpio PI6 */
 	};
 };
diff --git a/trunk/arch/arm/mach-dove/common.c b/trunk/arch/arm/mach-dove/common.c
index 83dce859886d..a9e0dae86a26 100644
--- a/trunk/arch/arm/mach-dove/common.c
+++ b/trunk/arch/arm/mach-dove/common.c
@@ -158,7 +158,7 @@ void __init dove_spi0_init(void)
 
 void __init dove_spi1_init(void)
 {
-	orion_spi_init(DOVE_SPI1_PHYS_BASE, get_tclk());
+	orion_spi_1_init(DOVE_SPI1_PHYS_BASE, get_tclk());
 }
 
 /*****************************************************************************
diff --git a/trunk/arch/arm/mach-exynos4/clock.c b/trunk/arch/arm/mach-exynos4/clock.c
index 1561b036a9bf..79d6cd0c8e7b 100644
--- a/trunk/arch/arm/mach-exynos4/clock.c
+++ b/trunk/arch/arm/mach-exynos4/clock.c
@@ -1160,7 +1160,7 @@ void __init_or_cpufreq exynos4_setup_clocks(void)
 
 	vpllsrc = clk_get_rate(&clk_vpllsrc.clk);
 	vpll = s5p_get_pll46xx(vpllsrc, __raw_readl(S5P_VPLL_CON0),
-				__raw_readl(S5P_VPLL_CON1), pll_4650);
+				__raw_readl(S5P_VPLL_CON1), pll_4650c);
 
 	clk_fout_apll.ops = &exynos4_fout_apll_ops;
 	clk_fout_mpll.rate = mpll;
diff --git a/trunk/arch/arm/mach-exynos4/mct.c b/trunk/arch/arm/mach-exynos4/mct.c
index 1ae059b7ad7b..ddd86864fb83 100644
--- a/trunk/arch/arm/mach-exynos4/mct.c
+++ b/trunk/arch/arm/mach-exynos4/mct.c
@@ -132,12 +132,18 @@ static cycle_t exynos4_frc_read(struct clocksource *cs)
 	return ((cycle_t)hi << 32) | lo;
 }
 
+static void exynos4_frc_resume(struct clocksource *cs)
+{
+	exynos4_mct_frc_start(0, 0);
+}
+
 struct clocksource mct_frc = {
 	.name		= "mct-frc",
 	.rating		= 400,
 	.read		= exynos4_frc_read,
 	.mask		= CLOCKSOURCE_MASK(64),
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+	.resume		= exynos4_frc_resume,
 };
 
 static void __init exynos4_clocksource_init(void)
@@ -389,9 +395,11 @@ static void exynos4_mct_tick_init(struct clock_event_device *evt)
 }
 
 /* Setup the local clock events for a CPU */
-void __cpuinit local_timer_setup(struct clock_event_device *evt)
+int __cpuinit local_timer_setup(struct clock_event_device *evt)
 {
 	exynos4_mct_tick_init(evt);
+
+	return 0;
 }
 
 int local_timer_ack(void)
diff --git a/trunk/arch/arm/mach-exynos4/platsmp.c b/trunk/arch/arm/mach-exynos4/platsmp.c
index 7c2282c6ba81..df6ef1b2f98b 100644
--- a/trunk/arch/arm/mach-exynos4/platsmp.c
+++ b/trunk/arch/arm/mach-exynos4/platsmp.c
@@ -106,6 +106,8 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
 	 */
 	spin_lock(&boot_lock);
 	spin_unlock(&boot_lock);
+
+	set_cpu_online(cpu, true);
 }
 
 int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
diff --git a/trunk/arch/arm/mach-exynos4/setup-keypad.c b/trunk/arch/arm/mach-exynos4/setup-keypad.c
index 1ee0ebff111f..7862bfb5933d 100644
--- a/trunk/arch/arm/mach-exynos4/setup-keypad.c
+++ b/trunk/arch/arm/mach-exynos4/setup-keypad.c
@@ -19,15 +19,16 @@ void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
 
 	if (rows > 8) {
 		/* Set all the necessary GPX2 pins: KP_ROW[0~7] */
-		s3c_gpio_cfgrange_nopull(EXYNOS4_GPX2(0), 8, S3C_GPIO_SFN(3));
+		s3c_gpio_cfgall_range(EXYNOS4_GPX2(0), 8, S3C_GPIO_SFN(3),
+					S3C_GPIO_PULL_UP);
 
 		/* Set all the necessary GPX3 pins: KP_ROW[8~] */
-		s3c_gpio_cfgrange_nopull(EXYNOS4_GPX3(0), (rows - 8),
-					 S3C_GPIO_SFN(3));
+		s3c_gpio_cfgall_range(EXYNOS4_GPX3(0), (rows - 8),
+					 S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
 	} else {
 		/* Set all the necessary GPX2 pins: KP_ROW[x] */
-		s3c_gpio_cfgrange_nopull(EXYNOS4_GPX2(0), rows,
-					 S3C_GPIO_SFN(3));
+		s3c_gpio_cfgall_range(EXYNOS4_GPX2(0), rows, S3C_GPIO_SFN(3),
+					S3C_GPIO_PULL_UP);
 	}
 
 	/* Set all the necessary GPX1 pins to special-function 3: KP_COL[x] */
diff --git a/trunk/arch/arm/mach-integrator/integrator_ap.c b/trunk/arch/arm/mach-integrator/integrator_ap.c
index fcf0ae95651f..8cdc730dcb3a 100644
--- a/trunk/arch/arm/mach-integrator/integrator_ap.c
+++ b/trunk/arch/arm/mach-integrator/integrator_ap.c
@@ -32,6 +32,7 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/mtd/physmap.h>
+#include <video/vga.h>
 
 #include <mach/hardware.h>
 #include <mach/platform.h>
@@ -154,6 +155,7 @@ static struct map_desc ap_io_desc[] __initdata = {
 static void __init ap_map_io(void)
 {
 	iotable_init(ap_io_desc, ARRAY_SIZE(ap_io_desc));
+	vga_base = PCI_MEMORY_VADDR;
 }
 
 #define INTEGRATOR_SC_VALID_INT	0x003fffff
diff --git a/trunk/arch/arm/mach-integrator/pci_v3.c b/trunk/arch/arm/mach-integrator/pci_v3.c
index dd56bfb351e3..11b86e5b71c2 100644
--- a/trunk/arch/arm/mach-integrator/pci_v3.c
+++ b/trunk/arch/arm/mach-integrator/pci_v3.c
@@ -27,7 +27,6 @@
 #include <linux/spinlock.h>
 #include <linux/init.h>
 #include <linux/io.h>
-#include <video/vga.h>
 
 #include <mach/hardware.h>
 #include <mach/platform.h>
@@ -505,7 +504,6 @@ void __init pci_v3_preinit(void)
 
 	pcibios_min_io = 0x6000;
 	pcibios_min_mem = 0x00100000;
-	vga_base = PCI_MEMORY_VADDR;
 
 	/*
 	 * Hook in our fault handler for PCI errors
diff --git a/trunk/arch/arm/mach-s3c64xx/mach-smdk6410.c b/trunk/arch/arm/mach-s3c64xx/mach-smdk6410.c
index ecbea92bf83b..a9f3183e0290 100644
--- a/trunk/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/trunk/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -262,45 +262,6 @@ static struct samsung_keypad_platdata smdk6410_keypad_data __initdata = {
 	.cols		= 8,
 };
 
-static int smdk6410_backlight_init(struct device *dev)
-{
-	int ret;
-
-	ret = gpio_request(S3C64XX_GPF(15), "Backlight");
-	if (ret) {
-		printk(KERN_ERR "failed to request GPF for PWM-OUT1\n");
-		return ret;
-	}
-
-	/* Configure GPIO pin with S3C64XX_GPF15_PWM_TOUT1 */
-	s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2));
-
-	return 0;
-}
-
-static void smdk6410_backlight_exit(struct device *dev)
-{
-	s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_OUTPUT);
-	gpio_free(S3C64XX_GPF(15));
-}
-
-static struct platform_pwm_backlight_data smdk6410_backlight_data = {
-	.pwm_id		= 1,
-	.max_brightness	= 255,
-	.dft_brightness	= 255,
-	.pwm_period_ns	= 78770,
-	.init		= smdk6410_backlight_init,
-	.exit		= smdk6410_backlight_exit,
-};
-
-static struct platform_device smdk6410_backlight_device = {
-	.name		= "pwm-backlight",
-	.dev		= {
-		.parent		= &s3c_device_timer[1].dev,
-		.platform_data	= &smdk6410_backlight_data,
-	},
-};
-
 static struct map_desc smdk6410_iodesc[] = {};
 
 static struct platform_device *smdk6410_devices[] __initdata = {
diff --git a/trunk/arch/arm/plat-samsung/clock.c b/trunk/arch/arm/plat-samsung/clock.c
index 302c42670bd1..3b4451979d1b 100644
--- a/trunk/arch/arm/plat-samsung/clock.c
+++ b/trunk/arch/arm/plat-samsung/clock.c
@@ -64,6 +64,17 @@ static LIST_HEAD(clocks);
  */
 DEFINE_SPINLOCK(clocks_lock);
 
+/* Global watchdog clock used by arch_wtd_reset() callback */
+struct clk *s3c2410_wdtclk;
+static int __init s3c_wdt_reset_init(void)
+{
+	s3c2410_wdtclk = clk_get(NULL, "watchdog");
+	if (IS_ERR(s3c2410_wdtclk))
+		printk(KERN_WARNING "%s: warning: cannot get watchdog clock\n", __func__);
+	return 0;
+}
+arch_initcall(s3c_wdt_reset_init);
+
 /* enable and disable calls for use with the clk struct */
 
 static int clk_null_enable(struct clk *clk, int enable)
diff --git a/trunk/arch/arm/plat-samsung/include/plat/clock.h b/trunk/arch/arm/plat-samsung/include/plat/clock.h
index 87d5b38a86fb..73c66d4d10fa 100644
--- a/trunk/arch/arm/plat-samsung/include/plat/clock.h
+++ b/trunk/arch/arm/plat-samsung/include/plat/clock.h
@@ -9,6 +9,9 @@
  * published by the Free Software Foundation.
 */
 
+#ifndef __ASM_PLAT_CLOCK_H
+#define __ASM_PLAT_CLOCK_H __FILE__
+
 #include <linux/spinlock.h>
 #include <linux/clkdev.h>
 
@@ -121,3 +124,8 @@ extern int s3c64xx_sclk_ctrl(struct clk *clk, int enable);
 
 extern void s3c_pwmclk_init(void);
 
+/* Global watchdog clock used by arch_wtd_reset() callback */
+
+extern struct clk *s3c2410_wdtclk;
+
+#endif /* __ASM_PLAT_CLOCK_H */
diff --git a/trunk/arch/arm/plat-samsung/include/plat/watchdog-reset.h b/trunk/arch/arm/plat-samsung/include/plat/watchdog-reset.h
index 54b762acb5a0..40dbb2b0ae22 100644
--- a/trunk/arch/arm/plat-samsung/include/plat/watchdog-reset.h
+++ b/trunk/arch/arm/plat-samsung/include/plat/watchdog-reset.h
@@ -10,6 +10,7 @@
  * published by the Free Software Foundation.
 */
 
+#include <plat/clock.h>
 #include <plat/regs-watchdog.h>
 #include <mach/map.h>
 
@@ -19,17 +20,12 @@
 
 static inline void arch_wdt_reset(void)
 {
-	struct clk *wdtclk;
-
 	printk("arch_reset: attempting watchdog reset\n");
 
 	__raw_writel(0, S3C2410_WTCON);	  /* disable watchdog, to be safe  */
 
-	wdtclk = clk_get(NULL, "watchdog");
-	if (!IS_ERR(wdtclk)) {
-		clk_enable(wdtclk);
-	} else
-		printk(KERN_WARNING "%s: warning: cannot get watchdog clock\n", __func__);
+	if (s3c2410_wdtclk)
+		clk_enable(s3c2410_wdtclk);
 
 	/* put initial values into count and data */
 	__raw_writel(0x80, S3C2410_WTCNT);
diff --git a/trunk/block/blk-cgroup.c b/trunk/block/blk-cgroup.c
index bcaf16ee6ad1..b596e54ddd71 100644
--- a/trunk/block/blk-cgroup.c
+++ b/trunk/block/blk-cgroup.c
@@ -785,10 +785,10 @@ static int blkio_policy_parse_and_set(char *buf,
 {
 	char *s[4], *p, *major_s = NULL, *minor_s = NULL;
 	int ret;
-	unsigned long major, minor, temp;
+	unsigned long major, minor;
 	int i = 0;
 	dev_t dev;
-	u64 bps, iops;
+	u64 temp;
 
 	memset(s, 0, sizeof(s));
 
@@ -826,20 +826,23 @@ static int blkio_policy_parse_and_set(char *buf,
 
 	dev = MKDEV(major, minor);
 
-	ret = blkio_check_dev_num(dev);
+	ret = strict_strtoull(s[1], 10, &temp);
 	if (ret)
-		return ret;
+		return -EINVAL;
 
-	newpn->dev = dev;
+	/* For rule removal, do not check for device presence. */
+	if (temp) {
+		ret = blkio_check_dev_num(dev);
+		if (ret)
+			return ret;
+	}
 
-	if (s[1] == NULL)
-		return -EINVAL;
+	newpn->dev = dev;
 
 	switch (plid) {
 	case BLKIO_POLICY_PROP:
-		ret = strict_strtoul(s[1], 10, &temp);
-		if (ret || (temp < BLKIO_WEIGHT_MIN && temp > 0) ||
-			temp > BLKIO_WEIGHT_MAX)
+		if ((temp < BLKIO_WEIGHT_MIN && temp > 0) ||
+		     temp > BLKIO_WEIGHT_MAX)
 			return -EINVAL;
 
 		newpn->plid = plid;
@@ -850,26 +853,18 @@ static int blkio_policy_parse_and_set(char *buf,
 		switch(fileid) {
 		case BLKIO_THROTL_read_bps_device:
 		case BLKIO_THROTL_write_bps_device:
-			ret = strict_strtoull(s[1], 10, &bps);
-			if (ret)
-				return -EINVAL;
-
 			newpn->plid = plid;
 			newpn->fileid = fileid;
-			newpn->val.bps = bps;
+			newpn->val.bps = temp;
 			break;
 		case BLKIO_THROTL_read_iops_device:
 		case BLKIO_THROTL_write_iops_device:
-			ret = strict_strtoull(s[1], 10, &iops);
-			if (ret)
-				return -EINVAL;
-
-			if (iops > THROTL_IOPS_MAX)
+			if (temp > THROTL_IOPS_MAX)
 				return -EINVAL;
 
 			newpn->plid = plid;
 			newpn->fileid = fileid;
-			newpn->val.iops = (unsigned int)iops;
+			newpn->val.iops = (unsigned int)temp;
 			break;
 		}
 		break;
diff --git a/trunk/block/blk-core.c b/trunk/block/blk-core.c
index 90e1ffdeb415..b2ed78afd9f0 100644
--- a/trunk/block/blk-core.c
+++ b/trunk/block/blk-core.c
@@ -1167,7 +1167,7 @@ static bool bio_attempt_front_merge(struct request_queue *q,
  * true if merge was successful, otherwise false.
  */
 static bool attempt_plug_merge(struct task_struct *tsk, struct request_queue *q,
-			       struct bio *bio)
+			       struct bio *bio, unsigned int *request_count)
 {
 	struct blk_plug *plug;
 	struct request *rq;
@@ -1176,10 +1176,13 @@ static bool attempt_plug_merge(struct task_struct *tsk, struct request_queue *q,
 	plug = tsk->plug;
 	if (!plug)
 		goto out;
+	*request_count = 0;
 
 	list_for_each_entry_reverse(rq, &plug->list, queuelist) {
 		int el_ret;
 
+		(*request_count)++;
+
 		if (rq->q != q)
 			continue;
 
@@ -1219,6 +1222,7 @@ static int __make_request(struct request_queue *q, struct bio *bio)
 	struct blk_plug *plug;
 	int el_ret, rw_flags, where = ELEVATOR_INSERT_SORT;
 	struct request *req;
+	unsigned int request_count = 0;
 
 	/*
 	 * low level driver can indicate that it wants pages above a
@@ -1237,7 +1241,7 @@ static int __make_request(struct request_queue *q, struct bio *bio)
 	 * Check if we can merge with the plugged list before grabbing
 	 * any locks.
 	 */
-	if (attempt_plug_merge(current, q, bio))
+	if (attempt_plug_merge(current, q, bio, &request_count))
 		goto out;
 
 	spin_lock_irq(q->queue_lock);
@@ -1302,11 +1306,10 @@ static int __make_request(struct request_queue *q, struct bio *bio)
 			if (__rq->q != q)
 				plug->should_sort = 1;
 		}
+		if (request_count >= BLK_MAX_REQUEST_COUNT)
+			blk_flush_plug_list(plug, false);
 		list_add_tail(&req->queuelist, &plug->list);
-		plug->count++;
 		drive_stat_acct(req, 1);
-		if (plug->count >= BLK_MAX_REQUEST_COUNT)
-			blk_flush_plug_list(plug, false);
 	} else {
 		spin_lock_irq(q->queue_lock);
 		add_acct_request(q, req, where);
@@ -2634,7 +2637,6 @@ void blk_start_plug(struct blk_plug *plug)
 	INIT_LIST_HEAD(&plug->list);
 	INIT_LIST_HEAD(&plug->cb_list);
 	plug->should_sort = 0;
-	plug->count = 0;
 
 	/*
 	 * If this is a nested plug, don't actually assign it. It will be
@@ -2718,7 +2720,6 @@ void blk_flush_plug_list(struct blk_plug *plug, bool from_schedule)
 		return;
 
 	list_splice_init(&plug->list, &list);
-	plug->count = 0;
 
 	if (plug->should_sort) {
 		list_sort(NULL, &list, plug_rq_cmp);
diff --git a/trunk/block/blk-softirq.c b/trunk/block/blk-softirq.c
index 58340d0cb23a..1366a89d8e66 100644
--- a/trunk/block/blk-softirq.c
+++ b/trunk/block/blk-softirq.c
@@ -115,7 +115,7 @@ void __blk_complete_request(struct request *req)
 	/*
 	 * Select completion CPU
 	 */
-	if (test_bit(QUEUE_FLAG_SAME_COMP, &q->queue_flags) && req->cpu != -1) {
+	if (req->cpu != -1) {
 		ccpu = req->cpu;
 		if (!test_bit(QUEUE_FLAG_SAME_FORCE, &q->queue_flags)) {
 			ccpu = blk_cpu_to_group(ccpu);
diff --git a/trunk/block/blk-sysfs.c b/trunk/block/blk-sysfs.c
index 0ee17b5e7fb6..e681805cdb47 100644
--- a/trunk/block/blk-sysfs.c
+++ b/trunk/block/blk-sysfs.c
@@ -258,11 +258,13 @@ queue_rq_affinity_store(struct request_queue *q, const char *page, size_t count)
 
 	ret = queue_var_store(&val, page, count);
 	spin_lock_irq(q->queue_lock);
-	if (val) {
+	if (val == 2) {
 		queue_flag_set(QUEUE_FLAG_SAME_COMP, q);
-		if (val == 2)
-			queue_flag_set(QUEUE_FLAG_SAME_FORCE, q);
-	} else {
+		queue_flag_set(QUEUE_FLAG_SAME_FORCE, q);
+	} else if (val == 1) {
+		queue_flag_set(QUEUE_FLAG_SAME_COMP, q);
+		queue_flag_clear(QUEUE_FLAG_SAME_FORCE, q);
+	} else if (val == 0) {
 		queue_flag_clear(QUEUE_FLAG_SAME_COMP, q);
 		queue_flag_clear(QUEUE_FLAG_SAME_FORCE, q);
 	}
diff --git a/trunk/block/cfq-iosched.c b/trunk/block/cfq-iosched.c
index a33bd4377c61..16ace89613bc 100644
--- a/trunk/block/cfq-iosched.c
+++ b/trunk/block/cfq-iosched.c
@@ -130,8 +130,8 @@ struct cfq_queue {
 	unsigned long slice_end;
 	long slice_resid;
 
-	/* pending metadata requests */
-	int meta_pending;
+	/* pending priority requests */
+	int prio_pending;
 	/* number of requests that are on the dispatch list or inside driver */
 	int dispatched;
 
@@ -684,8 +684,8 @@ cfq_choose_req(struct cfq_data *cfqd, struct request *rq1, struct request *rq2,
 	if (rq_is_sync(rq1) != rq_is_sync(rq2))
 		return rq_is_sync(rq1) ? rq1 : rq2;
 
-	if ((rq1->cmd_flags ^ rq2->cmd_flags) & REQ_META)
-		return rq1->cmd_flags & REQ_META ? rq1 : rq2;
+	if ((rq1->cmd_flags ^ rq2->cmd_flags) & REQ_PRIO)
+		return rq1->cmd_flags & REQ_PRIO ? rq1 : rq2;
 
 	s1 = blk_rq_pos(rq1);
 	s2 = blk_rq_pos(rq2);
@@ -1612,9 +1612,9 @@ static void cfq_remove_request(struct request *rq)
 	cfqq->cfqd->rq_queued--;
 	cfq_blkiocg_update_io_remove_stats(&(RQ_CFQG(rq))->blkg,
 					rq_data_dir(rq), rq_is_sync(rq));
-	if (rq->cmd_flags & REQ_META) {
-		WARN_ON(!cfqq->meta_pending);
-		cfqq->meta_pending--;
+	if (rq->cmd_flags & REQ_PRIO) {
+		WARN_ON(!cfqq->prio_pending);
+		cfqq->prio_pending--;
 	}
 }
 
@@ -3372,7 +3372,7 @@ cfq_should_preempt(struct cfq_data *cfqd, struct cfq_queue *new_cfqq,
 	 * So both queues are sync. Let the new request get disk time if
 	 * it's a metadata request and the current queue is doing regular IO.
 	 */
-	if ((rq->cmd_flags & REQ_META) && !cfqq->meta_pending)
+	if ((rq->cmd_flags & REQ_PRIO) && !cfqq->prio_pending)
 		return true;
 
 	/*
@@ -3439,8 +3439,8 @@ cfq_rq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq,
 	struct cfq_io_context *cic = RQ_CIC(rq);
 
 	cfqd->rq_queued++;
-	if (rq->cmd_flags & REQ_META)
-		cfqq->meta_pending++;
+	if (rq->cmd_flags & REQ_PRIO)
+		cfqq->prio_pending++;
 
 	cfq_update_io_thinktime(cfqd, cfqq, cic);
 	cfq_update_io_seektime(cfqd, cfqq, rq);
diff --git a/trunk/drivers/block/floppy.c b/trunk/drivers/block/floppy.c
index 98de8f418676..9955a53733b2 100644
--- a/trunk/drivers/block/floppy.c
+++ b/trunk/drivers/block/floppy.c
@@ -4250,7 +4250,7 @@ static int __init floppy_init(void)
 	use_virtual_dma = can_use_virtual_dma & 1;
 	fdc_state[0].address = FDC1;
 	if (fdc_state[0].address == -1) {
-		del_timer(&fd_timeout);
+		del_timer_sync(&fd_timeout);
 		err = -ENODEV;
 		goto out_unreg_region;
 	}
@@ -4261,7 +4261,7 @@ static int __init floppy_init(void)
 	fdc = 0;		/* reset fdc in case of unexpected interrupt */
 	err = floppy_grab_irq_and_dma();
 	if (err) {
-		del_timer(&fd_timeout);
+		del_timer_sync(&fd_timeout);
 		err = -EBUSY;
 		goto out_unreg_region;
 	}
@@ -4318,7 +4318,7 @@ static int __init floppy_init(void)
 		user_reset_fdc(-1, FD_RESET_ALWAYS, false);
 	}
 	fdc = 0;
-	del_timer(&fd_timeout);
+	del_timer_sync(&fd_timeout);
 	current_drive = 0;
 	initialized = true;
 	if (have_no_fdc) {
@@ -4368,7 +4368,7 @@ static int __init floppy_init(void)
 	unregister_blkdev(FLOPPY_MAJOR, "fd");
 out_put_disk:
 	while (dr--) {
-		del_timer(&motor_off_timer[dr]);
+		del_timer_sync(&motor_off_timer[dr]);
 		if (disks[dr]->queue)
 			blk_cleanup_queue(disks[dr]->queue);
 		put_disk(disks[dr]);
diff --git a/trunk/drivers/block/xen-blkback/common.h b/trunk/drivers/block/xen-blkback/common.h
index 9e40b283a468..00c57c90e2d6 100644
--- a/trunk/drivers/block/xen-blkback/common.h
+++ b/trunk/drivers/block/xen-blkback/common.h
@@ -46,7 +46,7 @@
 
 #define DRV_PFX "xen-blkback:"
 #define DPRINTK(fmt, args...)				\
-	pr_debug(DRV_PFX "(%s:%d) " fmt ".\n",	\
+	pr_debug(DRV_PFX "(%s:%d) " fmt ".\n",		\
 		 __func__, __LINE__, ##args)
 
 
diff --git a/trunk/drivers/block/xen-blkback/xenbus.c b/trunk/drivers/block/xen-blkback/xenbus.c
index 3f129b45451a..5fd2010f7d2b 100644
--- a/trunk/drivers/block/xen-blkback/xenbus.c
+++ b/trunk/drivers/block/xen-blkback/xenbus.c
@@ -590,7 +590,7 @@ static void frontend_changed(struct xenbus_device *dev,
 
 		/*
 		 * Enforce precondition before potential leak point.
-		 * blkif_disconnect() is idempotent.
+		 * xen_blkif_disconnect() is idempotent.
 		 */
 		xen_blkif_disconnect(be->blkif);
 
@@ -601,17 +601,17 @@ static void frontend_changed(struct xenbus_device *dev,
 		break;
 
 	case XenbusStateClosing:
-		xen_blkif_disconnect(be->blkif);
 		xenbus_switch_state(dev, XenbusStateClosing);
 		break;
 
 	case XenbusStateClosed:
+		xen_blkif_disconnect(be->blkif);
 		xenbus_switch_state(dev, XenbusStateClosed);
 		if (xenbus_dev_is_online(dev))
 			break;
 		/* fall through if not online */
 	case XenbusStateUnknown:
-		/* implies blkif_disconnect() via blkback_remove() */
+		/* implies xen_blkif_disconnect() via xen_blkbk_remove() */
 		device_unregister(&dev->dev);
 		break;
 
diff --git a/trunk/drivers/mmc/card/block.c b/trunk/drivers/mmc/card/block.c
index 1ff5486213fb..4c1a648d00fc 100644
--- a/trunk/drivers/mmc/card/block.c
+++ b/trunk/drivers/mmc/card/block.c
@@ -926,6 +926,9 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
 	/*
 	 * Reliable writes are used to implement Forced Unit Access and
 	 * REQ_META accesses, and are supported only on MMCs.
+	 *
+	 * XXX: this really needs a good explanation of why REQ_META
+	 * is treated special.
 	 */
 	bool do_rel_wr = ((req->cmd_flags & REQ_FUA) ||
 			  (req->cmd_flags & REQ_META)) &&
diff --git a/trunk/drivers/staging/zcache/zcache-main.c b/trunk/drivers/staging/zcache/zcache-main.c
index a3f5162bfedc..462fbc20561f 100644
--- a/trunk/drivers/staging/zcache/zcache-main.c
+++ b/trunk/drivers/staging/zcache/zcache-main.c
@@ -1242,7 +1242,7 @@ static int zcache_pampd_get_data_and_free(char *data, size_t *bufsize, bool raw,
 	int ret = 0;
 
 	BUG_ON(!is_ephemeral(pool));
-	zbud_decompress(virt_to_page(data), pampd);
+	zbud_decompress((struct page *)(data), pampd);
 	zbud_free_and_delist((struct zbud_hdr *)pampd);
 	atomic_dec(&zcache_curr_eph_pampd_count);
 	return ret;
diff --git a/trunk/drivers/watchdog/hpwdt.c b/trunk/drivers/watchdog/hpwdt.c
index 410fba45378d..809cbda03d7a 100644
--- a/trunk/drivers/watchdog/hpwdt.c
+++ b/trunk/drivers/watchdog/hpwdt.c
@@ -494,15 +494,16 @@ static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason,
 		asminline_call(&cmn_regs, cru_rom_addr);
 	die_nmi_called = 1;
 	spin_unlock_irqrestore(&rom_lock, rom_pl);
+
+	if (allow_kdump)
+		hpwdt_stop();
+
 	if (!is_icru) {
 		if (cmn_regs.u1.ral == 0) {
-			printk(KERN_WARNING "hpwdt: An NMI occurred, "
+			panic("An NMI occurred, "
 				"but unable to determine source.\n");
 		}
 	}
-
-	if (allow_kdump)
-		hpwdt_stop();
 	panic("An NMI occurred, please see the Integrated "
 		"Management Log for details.\n");
 
diff --git a/trunk/drivers/watchdog/lantiq_wdt.c b/trunk/drivers/watchdog/lantiq_wdt.c
index 7d82adac1cb2..102aed0efbf1 100644
--- a/trunk/drivers/watchdog/lantiq_wdt.c
+++ b/trunk/drivers/watchdog/lantiq_wdt.c
@@ -51,16 +51,16 @@ static int ltq_wdt_ok_to_close;
 static void
 ltq_wdt_enable(void)
 {
-	ltq_wdt_timeout = ltq_wdt_timeout *
+	unsigned long int timeout = ltq_wdt_timeout *
 			(ltq_io_region_clk_rate / LTQ_WDT_DIVIDER) + 0x1000;
-	if (ltq_wdt_timeout > LTQ_MAX_TIMEOUT)
-		ltq_wdt_timeout = LTQ_MAX_TIMEOUT;
+	if (timeout > LTQ_MAX_TIMEOUT)
+		timeout = LTQ_MAX_TIMEOUT;
 
 	/* write the first password magic */
 	ltq_w32(LTQ_WDT_PW1, ltq_wdt_membase + LTQ_WDT_CR);
 	/* write the second magic plus the configuration and new timeout */
 	ltq_w32(LTQ_WDT_SR_EN | LTQ_WDT_SR_PWD | LTQ_WDT_SR_CLKDIV |
-		LTQ_WDT_PW2 | ltq_wdt_timeout, ltq_wdt_membase + LTQ_WDT_CR);
+		LTQ_WDT_PW2 | timeout, ltq_wdt_membase + LTQ_WDT_CR);
 }
 
 static void
diff --git a/trunk/drivers/watchdog/sbc_epx_c3.c b/trunk/drivers/watchdog/sbc_epx_c3.c
index 3066a5127ca8..eaca366b7234 100644
--- a/trunk/drivers/watchdog/sbc_epx_c3.c
+++ b/trunk/drivers/watchdog/sbc_epx_c3.c
@@ -173,7 +173,7 @@ static struct notifier_block epx_c3_notifier = {
 	.notifier_call = epx_c3_notify_sys,
 };
 
-static const char banner[] __initdata = KERN_INFO PFX
+static const char banner[] __initconst = KERN_INFO PFX
 	"Hardware Watchdog Timer for Winsystems EPX-C3 SBC: 0.1\n";
 
 static int __init watchdog_init(void)
diff --git a/trunk/drivers/watchdog/watchdog_dev.c b/trunk/drivers/watchdog/watchdog_dev.c
index d33520d0b4c9..1199da0f98cf 100644
--- a/trunk/drivers/watchdog/watchdog_dev.c
+++ b/trunk/drivers/watchdog/watchdog_dev.c
@@ -59,7 +59,7 @@ static struct watchdog_device *wdd;
 
 static int watchdog_ping(struct watchdog_device *wddev)
 {
-	if (test_bit(WDOG_ACTIVE, &wdd->status)) {
+	if (test_bit(WDOG_ACTIVE, &wddev->status)) {
 		if (wddev->ops->ping)
 			return wddev->ops->ping(wddev);  /* ping the watchdog */
 		else
@@ -81,12 +81,12 @@ static int watchdog_start(struct watchdog_device *wddev)
 {
 	int err;
 
-	if (!test_bit(WDOG_ACTIVE, &wdd->status)) {
+	if (!test_bit(WDOG_ACTIVE, &wddev->status)) {
 		err = wddev->ops->start(wddev);
 		if (err < 0)
 			return err;
 
-		set_bit(WDOG_ACTIVE, &wdd->status);
+		set_bit(WDOG_ACTIVE, &wddev->status);
 	}
 	return 0;
 }
@@ -105,18 +105,18 @@ static int watchdog_stop(struct watchdog_device *wddev)
 {
 	int err = -EBUSY;
 
-	if (test_bit(WDOG_NO_WAY_OUT, &wdd->status)) {
+	if (test_bit(WDOG_NO_WAY_OUT, &wddev->status)) {
 		pr_info("%s: nowayout prevents watchdog to be stopped!\n",
-							wdd->info->identity);
+							wddev->info->identity);
 		return err;
 	}
 
-	if (test_bit(WDOG_ACTIVE, &wdd->status)) {
+	if (test_bit(WDOG_ACTIVE, &wddev->status)) {
 		err = wddev->ops->stop(wddev);
 		if (err < 0)
 			return err;
 
-		clear_bit(WDOG_ACTIVE, &wdd->status);
+		clear_bit(WDOG_ACTIVE, &wddev->status);
 	}
 	return 0;
 }
diff --git a/trunk/fs/btrfs/ioctl.c b/trunk/fs/btrfs/ioctl.c
index d11fd28efa6a..538f65a79ec5 100644
--- a/trunk/fs/btrfs/ioctl.c
+++ b/trunk/fs/btrfs/ioctl.c
@@ -2328,7 +2328,12 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
 			else
 				new_key.offset = destoff;
 
-			trans = btrfs_start_transaction(root, 1);
+			/*
+			 * 1 - adjusting old extent (we may have to split it)
+			 * 1 - add new extent
+			 * 1 - inode update
+			 */
+			trans = btrfs_start_transaction(root, 3);
 			if (IS_ERR(trans)) {
 				ret = PTR_ERR(trans);
 				goto out;
diff --git a/trunk/fs/cifs/cifsencrypt.c b/trunk/fs/cifs/cifsencrypt.c
index e76bfeb68267..30acd22147e1 100644
--- a/trunk/fs/cifs/cifsencrypt.c
+++ b/trunk/fs/cifs/cifsencrypt.c
@@ -351,9 +351,7 @@ static int
 build_avpair_blob(struct cifs_ses *ses, const struct nls_table *nls_cp)
 {
 	unsigned int dlen;
-	unsigned int wlen;
-	unsigned int size = 6 * sizeof(struct ntlmssp2_name);
-	__le64  curtime;
+	unsigned int size = 2 * sizeof(struct ntlmssp2_name);
 	char *defdmname = "WORKGROUP";
 	unsigned char *blobptr;
 	struct ntlmssp2_name *attrptr;
@@ -365,15 +363,14 @@ build_avpair_blob(struct cifs_ses *ses, const struct nls_table *nls_cp)
 	}
 
 	dlen = strlen(ses->domainName);
-	wlen = strlen(ses->server->hostname);
 
-	/* The length of this blob is a size which is
-	 * six times the size of a structure which holds name/size +
-	 * two times the unicode length of a domain name +
-	 * two times the unicode length of a server name +
-	 * size of a timestamp (which is 8 bytes).
+	/*
+	 * The length of this blob is two times the size of a
+	 * structure (av pair) which holds name/size
+	 * ( for NTLMSSP_AV_NB_DOMAIN_NAME followed by NTLMSSP_AV_EOL ) +
+	 * unicode length of a netbios domain name
 	 */
-	ses->auth_key.len = size + 2 * (2 * dlen) + 2 * (2 * wlen) + 8;
+	ses->auth_key.len = size + 2 * dlen;
 	ses->auth_key.response = kzalloc(ses->auth_key.len, GFP_KERNEL);
 	if (!ses->auth_key.response) {
 		ses->auth_key.len = 0;
@@ -384,44 +381,15 @@ build_avpair_blob(struct cifs_ses *ses, const struct nls_table *nls_cp)
 	blobptr = ses->auth_key.response;
 	attrptr = (struct ntlmssp2_name *) blobptr;
 
+	/*
+	 * As defined in MS-NTLM 3.3.2, just this av pair field
+	 * is sufficient as part of the temp
+	 */
 	attrptr->type = cpu_to_le16(NTLMSSP_AV_NB_DOMAIN_NAME);
 	attrptr->length = cpu_to_le16(2 * dlen);
 	blobptr = (unsigned char *)attrptr + sizeof(struct ntlmssp2_name);
 	cifs_strtoUCS((__le16 *)blobptr, ses->domainName, dlen, nls_cp);
 
-	blobptr += 2 * dlen;
-	attrptr = (struct ntlmssp2_name *) blobptr;
-
-	attrptr->type = cpu_to_le16(NTLMSSP_AV_NB_COMPUTER_NAME);
-	attrptr->length = cpu_to_le16(2 * wlen);
-	blobptr = (unsigned char *)attrptr + sizeof(struct ntlmssp2_name);
-	cifs_strtoUCS((__le16 *)blobptr, ses->server->hostname, wlen, nls_cp);
-
-	blobptr += 2 * wlen;
-	attrptr = (struct ntlmssp2_name *) blobptr;
-
-	attrptr->type = cpu_to_le16(NTLMSSP_AV_DNS_DOMAIN_NAME);
-	attrptr->length = cpu_to_le16(2 * dlen);
-	blobptr = (unsigned char *)attrptr + sizeof(struct ntlmssp2_name);
-	cifs_strtoUCS((__le16 *)blobptr, ses->domainName, dlen, nls_cp);
-
-	blobptr += 2 * dlen;
-	attrptr = (struct ntlmssp2_name *) blobptr;
-
-	attrptr->type = cpu_to_le16(NTLMSSP_AV_DNS_COMPUTER_NAME);
-	attrptr->length = cpu_to_le16(2 * wlen);
-	blobptr = (unsigned char *)attrptr + sizeof(struct ntlmssp2_name);
-	cifs_strtoUCS((__le16 *)blobptr, ses->server->hostname, wlen, nls_cp);
-
-	blobptr += 2 * wlen;
-	attrptr = (struct ntlmssp2_name *) blobptr;
-
-	attrptr->type = cpu_to_le16(NTLMSSP_AV_TIMESTAMP);
-	attrptr->length = cpu_to_le16(sizeof(__le64));
-	blobptr = (unsigned char *)attrptr + sizeof(struct ntlmssp2_name);
-	curtime = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
-	memcpy(blobptr, &curtime, sizeof(__le64));
-
 	return 0;
 }
 
diff --git a/trunk/fs/cifs/cifsfs.c b/trunk/fs/cifs/cifsfs.c
index f93eb948d071..54b8f1e7da94 100644
--- a/trunk/fs/cifs/cifsfs.c
+++ b/trunk/fs/cifs/cifsfs.c
@@ -548,6 +548,12 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
 		struct inode *dir = dentry->d_inode;
 		struct dentry *child;
 
+		if (!dir) {
+			dput(dentry);
+			dentry = ERR_PTR(-ENOENT);
+			break;
+		}
+
 		/* skip separators */
 		while (*s == sep)
 			s++;
@@ -563,10 +569,6 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
 		mutex_unlock(&dir->i_mutex);
 		dput(dentry);
 		dentry = child;
-		if (!dentry->d_inode) {
-			dput(dentry);
-			dentry = ERR_PTR(-ENOENT);
-		}
 	} while (!IS_ERR(dentry));
 	_FreeXid(xid);
 	kfree(full_path);
diff --git a/trunk/fs/cifs/cifssmb.c b/trunk/fs/cifs/cifssmb.c
index aac37d99a487..a80f7bd97b90 100644
--- a/trunk/fs/cifs/cifssmb.c
+++ b/trunk/fs/cifs/cifssmb.c
@@ -4079,7 +4079,8 @@ int CIFSFindNext(const int xid, struct cifs_tcon *tcon,
 	T2_FNEXT_RSP_PARMS *parms;
 	char *response_data;
 	int rc = 0;
-	int bytes_returned, name_len;
+	int bytes_returned;
+	unsigned int name_len;
 	__u16 params, byte_count;
 
 	cFYI(1, "In FindNext");
diff --git a/trunk/fs/cifs/connect.c b/trunk/fs/cifs/connect.c
index 633c246b6775..f4af4cc37500 100644
--- a/trunk/fs/cifs/connect.c
+++ b/trunk/fs/cifs/connect.c
@@ -1298,7 +1298,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 			/* ignore */
 		} else if (strnicmp(data, "guest", 5) == 0) {
 			/* ignore */
-		} else if (strnicmp(data, "rw", 2) == 0) {
+		} else if (strnicmp(data, "rw", 2) == 0 && strlen(data) == 2) {
 			/* ignore */
 		} else if (strnicmp(data, "ro", 2) == 0) {
 			/* ignore */
@@ -1401,7 +1401,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 			vol->server_ino = 1;
 		} else if (strnicmp(data, "noserverino", 9) == 0) {
 			vol->server_ino = 0;
-		} else if (strnicmp(data, "rwpidforward", 4) == 0) {
+		} else if (strnicmp(data, "rwpidforward", 12) == 0) {
 			vol->rwpidforward = 1;
 		} else if (strnicmp(data, "cifsacl", 7) == 0) {
 			vol->cifs_acl = 1;
diff --git a/trunk/fs/ext3/inode.c b/trunk/fs/ext3/inode.c
index 04da6acde85d..12661e1deedd 100644
--- a/trunk/fs/ext3/inode.c
+++ b/trunk/fs/ext3/inode.c
@@ -1134,7 +1134,7 @@ struct buffer_head *ext3_bread(handle_t *handle, struct inode *inode,
 		return bh;
 	if (buffer_uptodate(bh))
 		return bh;
-	ll_rw_block(READ_META, 1, &bh);
+	ll_rw_block(READ | REQ_META | REQ_PRIO, 1, &bh);
 	wait_on_buffer(bh);
 	if (buffer_uptodate(bh))
 		return bh;
@@ -2807,7 +2807,7 @@ static int __ext3_get_inode_loc(struct inode *inode,
 		trace_ext3_load_inode(inode);
 		get_bh(bh);
 		bh->b_end_io = end_buffer_read_sync;
-		submit_bh(READ_META, bh);
+		submit_bh(READ | REQ_META | REQ_PRIO, bh);
 		wait_on_buffer(bh);
 		if (!buffer_uptodate(bh)) {
 			ext3_error(inode->i_sb, "ext3_get_inode_loc",
diff --git a/trunk/fs/ext3/namei.c b/trunk/fs/ext3/namei.c
index 5571708b6a58..0629e09f6511 100644
--- a/trunk/fs/ext3/namei.c
+++ b/trunk/fs/ext3/namei.c
@@ -922,7 +922,8 @@ static struct buffer_head *ext3_find_entry(struct inode *dir,
 				bh = ext3_getblk(NULL, dir, b++, 0, &err);
 				bh_use[ra_max] = bh;
 				if (bh)
-					ll_rw_block(READ_META, 1, &bh);
+					ll_rw_block(READ | REQ_META | REQ_PRIO,
+						    1, &bh);
 			}
 		}
 		if ((bh = bh_use[ra_ptr++]) == NULL)
diff --git a/trunk/fs/ext4/inode.c b/trunk/fs/ext4/inode.c
index 18d2558b7624..986e2388f031 100644
--- a/trunk/fs/ext4/inode.c
+++ b/trunk/fs/ext4/inode.c
@@ -647,7 +647,7 @@ struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,
 		return bh;
 	if (buffer_uptodate(bh))
 		return bh;
-	ll_rw_block(READ_META, 1, &bh);
+	ll_rw_block(READ | REQ_META | REQ_PRIO, 1, &bh);
 	wait_on_buffer(bh);
 	if (buffer_uptodate(bh))
 		return bh;
@@ -3298,7 +3298,7 @@ static int __ext4_get_inode_loc(struct inode *inode,
 		trace_ext4_load_inode(inode);
 		get_bh(bh);
 		bh->b_end_io = end_buffer_read_sync;
-		submit_bh(READ_META, bh);
+		submit_bh(READ | REQ_META | REQ_PRIO, bh);
 		wait_on_buffer(bh);
 		if (!buffer_uptodate(bh)) {
 			EXT4_ERROR_INODE_BLOCK(inode, block,
diff --git a/trunk/fs/ext4/namei.c b/trunk/fs/ext4/namei.c
index f8068c7bae9f..1c924faeb6c8 100644
--- a/trunk/fs/ext4/namei.c
+++ b/trunk/fs/ext4/namei.c
@@ -922,7 +922,8 @@ static struct buffer_head * ext4_find_entry (struct inode *dir,
 				bh = ext4_getblk(NULL, dir, b++, 0, &err);
 				bh_use[ra_max] = bh;
 				if (bh)
-					ll_rw_block(READ_META, 1, &bh);
+					ll_rw_block(READ | REQ_META | REQ_PRIO,
+						    1, &bh);
 			}
 		}
 		if ((bh = bh_use[ra_ptr++]) == NULL)
diff --git a/trunk/fs/gfs2/log.c b/trunk/fs/gfs2/log.c
index 85c62923ee29..598646434362 100644
--- a/trunk/fs/gfs2/log.c
+++ b/trunk/fs/gfs2/log.c
@@ -624,9 +624,9 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull)
 	bh->b_end_io = end_buffer_write_sync;
 	get_bh(bh);
 	if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags))
-		submit_bh(WRITE_SYNC | REQ_META, bh);
+		submit_bh(WRITE_SYNC | REQ_META | REQ_PRIO, bh);
 	else
-		submit_bh(WRITE_FLUSH_FUA | REQ_META, bh);
+		submit_bh(WRITE_FLUSH_FUA | REQ_META | REQ_PRIO, bh);
 	wait_on_buffer(bh);
 
 	if (!buffer_uptodate(bh))
diff --git a/trunk/fs/gfs2/meta_io.c b/trunk/fs/gfs2/meta_io.c
index 747238cd9f96..be29858900f6 100644
--- a/trunk/fs/gfs2/meta_io.c
+++ b/trunk/fs/gfs2/meta_io.c
@@ -37,7 +37,7 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
 {
 	struct buffer_head *bh, *head;
 	int nr_underway = 0;
-	int write_op = REQ_META |
+	int write_op = REQ_META | REQ_PRIO |
 		(wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE);
 
 	BUG_ON(!PageLocked(page));
@@ -225,7 +225,7 @@ int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags,
 	}
 	bh->b_end_io = end_buffer_read_sync;
 	get_bh(bh);
-	submit_bh(READ_SYNC | REQ_META, bh);
+	submit_bh(READ_SYNC | REQ_META | REQ_PRIO, bh);
 	if (!(flags & DIO_WAIT))
 		return 0;
 
@@ -435,7 +435,7 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen)
 	if (buffer_uptodate(first_bh))
 		goto out;
 	if (!buffer_locked(first_bh))
-		ll_rw_block(READ_SYNC | REQ_META, 1, &first_bh);
+		ll_rw_block(READ_SYNC | REQ_META | REQ_PRIO, 1, &first_bh);
 
 	dblock++;
 	extlen--;
diff --git a/trunk/fs/gfs2/ops_fstype.c b/trunk/fs/gfs2/ops_fstype.c
index 3bc073a4cf82..079587e53849 100644
--- a/trunk/fs/gfs2/ops_fstype.c
+++ b/trunk/fs/gfs2/ops_fstype.c
@@ -224,7 +224,7 @@ static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector, int silent)
 
 	bio->bi_end_io = end_bio_io_page;
 	bio->bi_private = page;
-	submit_bio(READ_SYNC | REQ_META, bio);
+	submit_bio(READ_SYNC | REQ_META | REQ_PRIO, bio);
 	wait_on_page_locked(page);
 	bio_put(bio);
 	if (!PageUptodate(page)) {
diff --git a/trunk/fs/gfs2/quota.c b/trunk/fs/gfs2/quota.c
index 42e8d23bc047..0e8bb13381e4 100644
--- a/trunk/fs/gfs2/quota.c
+++ b/trunk/fs/gfs2/quota.c
@@ -709,7 +709,7 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
 		set_buffer_uptodate(bh);
 
 	if (!buffer_uptodate(bh)) {
-		ll_rw_block(READ_META, 1, &bh);
+		ll_rw_block(READ | REQ_META | REQ_PRIO, 1, &bh);
 		wait_on_buffer(bh);
 		if (!buffer_uptodate(bh))
 			goto unlock_out;
diff --git a/trunk/fs/proc/task_mmu.c b/trunk/fs/proc/task_mmu.c
index 25b6a887adb9..5afaa58a8630 100644
--- a/trunk/fs/proc/task_mmu.c
+++ b/trunk/fs/proc/task_mmu.c
@@ -877,30 +877,54 @@ struct numa_maps_private {
 	struct numa_maps md;
 };
 
-static void gather_stats(struct page *page, struct numa_maps *md, int pte_dirty)
+static void gather_stats(struct page *page, struct numa_maps *md, int pte_dirty,
+			unsigned long nr_pages)
 {
 	int count = page_mapcount(page);
 
-	md->pages++;
+	md->pages += nr_pages;
 	if (pte_dirty || PageDirty(page))
-		md->dirty++;
+		md->dirty += nr_pages;
 
 	if (PageSwapCache(page))
-		md->swapcache++;
+		md->swapcache += nr_pages;
 
 	if (PageActive(page) || PageUnevictable(page))
-		md->active++;
+		md->active += nr_pages;
 
 	if (PageWriteback(page))
-		md->writeback++;
+		md->writeback += nr_pages;
 
 	if (PageAnon(page))
-		md->anon++;
+		md->anon += nr_pages;
 
 	if (count > md->mapcount_max)
 		md->mapcount_max = count;
 
-	md->node[page_to_nid(page)]++;
+	md->node[page_to_nid(page)] += nr_pages;
+}
+
+static struct page *can_gather_numa_stats(pte_t pte, struct vm_area_struct *vma,
+		unsigned long addr)
+{
+	struct page *page;
+	int nid;
+
+	if (!pte_present(pte))
+		return NULL;
+
+	page = vm_normal_page(vma, addr, pte);
+	if (!page)
+		return NULL;
+
+	if (PageReserved(page))
+		return NULL;
+
+	nid = page_to_nid(page);
+	if (!node_isset(nid, node_states[N_HIGH_MEMORY]))
+		return NULL;
+
+	return page;
 }
 
 static int gather_pte_stats(pmd_t *pmd, unsigned long addr,
@@ -912,26 +936,32 @@ static int gather_pte_stats(pmd_t *pmd, unsigned long addr,
 	pte_t *pte;
 
 	md = walk->private;
-	orig_pte = pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl);
-	do {
-		struct page *page;
-		int nid;
+	spin_lock(&walk->mm->page_table_lock);
+	if (pmd_trans_huge(*pmd)) {
+		if (pmd_trans_splitting(*pmd)) {
+			spin_unlock(&walk->mm->page_table_lock);
+			wait_split_huge_page(md->vma->anon_vma, pmd);
+		} else {
+			pte_t huge_pte = *(pte_t *)pmd;
+			struct page *page;
 
-		if (!pte_present(*pte))
-			continue;
+			page = can_gather_numa_stats(huge_pte, md->vma, addr);
+			if (page)
+				gather_stats(page, md, pte_dirty(huge_pte),
+						HPAGE_PMD_SIZE/PAGE_SIZE);
+			spin_unlock(&walk->mm->page_table_lock);
+			return 0;
+		}
+	} else {
+		spin_unlock(&walk->mm->page_table_lock);
+	}
 
-		page = vm_normal_page(md->vma, addr, *pte);
+	orig_pte = pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl);
+	do {
+		struct page *page = can_gather_numa_stats(*pte, md->vma, addr);
 		if (!page)
 			continue;
-
-		if (PageReserved(page))
-			continue;
-
-		nid = page_to_nid(page);
-		if (!node_isset(nid, node_states[N_HIGH_MEMORY]))
-			continue;
-
-		gather_stats(page, md, pte_dirty(*pte));
+		gather_stats(page, md, pte_dirty(*pte), 1);
 
 	} while (pte++, addr += PAGE_SIZE, addr != end);
 	pte_unmap_unlock(orig_pte, ptl);
@@ -952,7 +982,7 @@ static int gather_hugetbl_stats(pte_t *pte, unsigned long hmask,
 		return 0;
 
 	md = walk->private;
-	gather_stats(page, md, pte_dirty(*pte));
+	gather_stats(page, md, pte_dirty(*pte), 1);
 	return 0;
 }
 
diff --git a/trunk/include/linux/blk_types.h b/trunk/include/linux/blk_types.h
index 32f0076e844b..71fc53bb8f1c 100644
--- a/trunk/include/linux/blk_types.h
+++ b/trunk/include/linux/blk_types.h
@@ -124,6 +124,7 @@ enum rq_flag_bits {
 
 	__REQ_SYNC,		/* request is sync (sync write or read) */
 	__REQ_META,		/* metadata io request */
+	__REQ_PRIO,		/* boost priority in cfq */
 	__REQ_DISCARD,		/* request to discard sectors */
 	__REQ_SECURE,		/* secure discard (used with __REQ_DISCARD) */
 
@@ -161,14 +162,15 @@ enum rq_flag_bits {
 #define REQ_FAILFAST_DRIVER	(1 << __REQ_FAILFAST_DRIVER)
 #define REQ_SYNC		(1 << __REQ_SYNC)
 #define REQ_META		(1 << __REQ_META)
+#define REQ_PRIO		(1 << __REQ_PRIO)
 #define REQ_DISCARD		(1 << __REQ_DISCARD)
 #define REQ_NOIDLE		(1 << __REQ_NOIDLE)
 
 #define REQ_FAILFAST_MASK \
 	(REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
 #define REQ_COMMON_MASK \
-	(REQ_WRITE | REQ_FAILFAST_MASK | REQ_SYNC | REQ_META | REQ_DISCARD | \
-	 REQ_NOIDLE | REQ_FLUSH | REQ_FUA | REQ_SECURE)
+	(REQ_WRITE | REQ_FAILFAST_MASK | REQ_SYNC | REQ_META | REQ_PRIO | \
+	 REQ_DISCARD | REQ_NOIDLE | REQ_FLUSH | REQ_FUA | REQ_SECURE)
 #define REQ_CLONE_MASK		REQ_COMMON_MASK
 
 #define REQ_RAHEAD		(1 << __REQ_RAHEAD)
diff --git a/trunk/include/linux/blkdev.h b/trunk/include/linux/blkdev.h
index 84b15d54f8c2..7fbaa9103344 100644
--- a/trunk/include/linux/blkdev.h
+++ b/trunk/include/linux/blkdev.h
@@ -873,7 +873,6 @@ struct blk_plug {
 	struct list_head list;
 	struct list_head cb_list;
 	unsigned int should_sort;
-	unsigned int count;
 };
 #define BLK_MAX_REQUEST_COUNT 16
 
diff --git a/trunk/include/linux/fs.h b/trunk/include/linux/fs.h
index c2bd68f2277a..277f497923a2 100644
--- a/trunk/include/linux/fs.h
+++ b/trunk/include/linux/fs.h
@@ -162,10 +162,8 @@ struct inodes_stat_t {
 #define READA			RWA_MASK
 
 #define READ_SYNC		(READ | REQ_SYNC)
-#define READ_META		(READ | REQ_META)
 #define WRITE_SYNC		(WRITE | REQ_SYNC | REQ_NOIDLE)
 #define WRITE_ODIRECT		(WRITE | REQ_SYNC)
-#define WRITE_META		(WRITE | REQ_META)
 #define WRITE_FLUSH		(WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FLUSH)
 #define WRITE_FUA		(WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FUA)
 #define WRITE_FLUSH_FUA		(WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FLUSH | REQ_FUA)
diff --git a/trunk/init/main.c b/trunk/init/main.c
index 9c51ee7adf3d..2a9b88aa5e76 100644
--- a/trunk/init/main.c
+++ b/trunk/init/main.c
@@ -209,8 +209,19 @@ early_param("quiet", quiet_kernel);
 
 static int __init loglevel(char *str)
 {
-	get_option(&str, &console_loglevel);
-	return 0;
+	int newlevel;
+
+	/*
+	 * Only update loglevel value when a correct setting was passed,
+	 * to prevent blind crashes (when loglevel being set to 0) that
+	 * are quite hard to debug
+	 */
+	if (get_option(&str, &newlevel)) {
+		console_loglevel = newlevel;
+		return 0;
+	}
+
+	return -EINVAL;
 }
 
 early_param("loglevel", loglevel);
diff --git a/trunk/mm/backing-dev.c b/trunk/mm/backing-dev.c
index d6edf8d14f9c..a87da524a4a0 100644
--- a/trunk/mm/backing-dev.c
+++ b/trunk/mm/backing-dev.c
@@ -359,6 +359,17 @@ static unsigned long bdi_longest_inactive(void)
 	return max(5UL * 60 * HZ, interval);
 }
 
+/*
+ * Clear pending bit and wakeup anybody waiting for flusher thread creation or
+ * shutdown
+ */
+static void bdi_clear_pending(struct backing_dev_info *bdi)
+{
+	clear_bit(BDI_pending, &bdi->state);
+	smp_mb__after_clear_bit();
+	wake_up_bit(&bdi->state, BDI_pending);
+}
+
 static int bdi_forker_thread(void *ptr)
 {
 	struct bdi_writeback *me = ptr;
@@ -390,6 +401,13 @@ static int bdi_forker_thread(void *ptr)
 		}
 
 		spin_lock_bh(&bdi_lock);
+		/*
+		 * In the following loop we are going to check whether we have
+		 * some work to do without any synchronization with tasks
+		 * waking us up to do work for them. So we have to set task
+		 * state already here so that we don't miss wakeups coming
+		 * after we verify some condition.
+		 */
 		set_current_state(TASK_INTERRUPTIBLE);
 
 		list_for_each_entry(bdi, &bdi_list, bdi_list) {
@@ -469,11 +487,13 @@ static int bdi_forker_thread(void *ptr)
 				spin_unlock_bh(&bdi->wb_lock);
 				wake_up_process(task);
 			}
+			bdi_clear_pending(bdi);
 			break;
 
 		case KILL_THREAD:
 			__set_current_state(TASK_RUNNING);
 			kthread_stop(task);
+			bdi_clear_pending(bdi);
 			break;
 
 		case NO_ACTION:
@@ -489,16 +509,8 @@ static int bdi_forker_thread(void *ptr)
 			else
 				schedule_timeout(msecs_to_jiffies(dirty_writeback_interval * 10));
 			try_to_freeze();
-			/* Back to the main loop */
-			continue;
+			break;
 		}
-
-		/*
-		 * Clear pending bit and wakeup anybody waiting to tear us down.
-		 */
-		clear_bit(BDI_pending, &bdi->state);
-		smp_mb__after_clear_bit();
-		wake_up_bit(&bdi->state, BDI_pending);
 	}
 
 	return 0;
diff --git a/trunk/sound/pci/hda/patch_realtek.c b/trunk/sound/pci/hda/patch_realtek.c
index 7cabd7317163..0503c999e7d3 100644
--- a/trunk/sound/pci/hda/patch_realtek.c
+++ b/trunk/sound/pci/hda/patch_realtek.c
@@ -168,7 +168,7 @@ struct alc_spec {
 	unsigned int auto_mic_valid_imux:1;	/* valid imux for auto-mic */
 	unsigned int automute:1;	/* HP automute enabled */
 	unsigned int detect_line:1;	/* Line-out detection enabled */
-	unsigned int automute_lines:1;	/* automute line-out as well */
+	unsigned int automute_lines:1;	/* automute line-out as well; NOP when automute_hp_lo isn't set */
 	unsigned int automute_hp_lo:1;	/* both HP and LO available */
 
 	/* other flags */
@@ -551,7 +551,7 @@ static void update_speakers(struct hda_codec *codec)
 	if (spec->autocfg.line_out_pins[0] == spec->autocfg.hp_pins[0] ||
 	    spec->autocfg.line_out_pins[0] == spec->autocfg.speaker_pins[0])
 		return;
-	if (!spec->automute_lines || !spec->automute)
+	if (!spec->automute || (spec->automute_hp_lo && !spec->automute_lines))
 		on = 0;
 	else
 		on = spec->jack_present;
@@ -803,7 +803,7 @@ static int alc_automute_mode_get(struct snd_kcontrol *kcontrol,
 	unsigned int val;
 	if (!spec->automute)
 		val = 0;
-	else if (!spec->automute_lines)
+	else if (!spec->automute_hp_lo || !spec->automute_lines)
 		val = 1;
 	else
 		val = 2;
@@ -824,7 +824,8 @@ static int alc_automute_mode_put(struct snd_kcontrol *kcontrol,
 		spec->automute = 0;
 		break;
 	case 1:
-		if (spec->automute && !spec->automute_lines)
+		if (spec->automute &&
+		    (!spec->automute_hp_lo || !spec->automute_lines))
 			return 0;
 		spec->automute = 1;
 		spec->automute_lines = 0;
diff --git a/trunk/sound/pci/hda/patch_sigmatel.c b/trunk/sound/pci/hda/patch_sigmatel.c
index 5145b663ef6e..1b7c11432aa7 100644
--- a/trunk/sound/pci/hda/patch_sigmatel.c
+++ b/trunk/sound/pci/hda/patch_sigmatel.c
@@ -6573,6 +6573,7 @@ static const struct hda_codec_preset snd_hda_preset_sigmatel[] = {
 	{ .id = 0x111d76cc, .name = "92HD89F3", .patch = patch_stac92hd73xx },
 	{ .id = 0x111d76cd, .name = "92HD89F2", .patch = patch_stac92hd73xx },
 	{ .id = 0x111d76ce, .name = "92HD89F1", .patch = patch_stac92hd73xx },
+	{ .id = 0x111d76df, .name = "92HD93BXX", .patch = patch_stac92hd83xxx},
 	{ .id = 0x111d76e0, .name = "92HD91BXX", .patch = patch_stac92hd83xxx},
 	{ .id = 0x111d76e3, .name = "92HD98BXX", .patch = patch_stac92hd83xxx},
 	{ .id = 0x111d76e5, .name = "92HD99BXX", .patch = patch_stac92hd83xxx},