Linux 3.1-rc6

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm: Remove duplicate "return" statement
  drm/nv04/crtc: Bail out if FB is not bound to crtc
  drm/nouveau: fix nv04_sgdma_bind on non-"4kB pages" archs
  drm/nouveau: properly handle allocation failure in nouveau_sgdma_populate
  drm/nouveau: fix oops on pre-semaphore hardware
  drm/nv50/crtc: Bail out if FB is not bound to crtc
  drm/radeon/kms: fix DP detect and EDID fetch for DP bridges

Documentation/DocBook/media/v4l/controls.xml

@@ -1455,7 +1455,7 @@ Applicable to the H264 encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-vui-sar-idc">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC</constant>&nbsp;</entry>
 		<entry>enum&nbsp;v4l2_mpeg_video_h264_vui_sar_idc</entry>
 	      </row>
@@ -1561,7 +1561,7 @@ Applicable to the H264 encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-level">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LEVEL</constant>&nbsp;</entry>
 		<entry>enum&nbsp;v4l2_mpeg_video_h264_level</entry>
 	      </row>
@@ -1641,7 +1641,7 @@ Possible values are:</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-mpeg4-level">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL</constant>&nbsp;</entry>
 		<entry>enum&nbsp;v4l2_mpeg_video_mpeg4_level</entry>
 	      </row>
@@ -1689,9 +1689,9 @@ Possible values are:</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-profile">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_PROFILE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_h264_profile</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_h264_profile</entry>
 	      </row>
 	      <row><entry spanname="descr">The profile information for H264.
 Applicable to the H264 encoder.
@@ -1774,9 +1774,9 @@ Possible values are:</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-mpeg4-profile">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_mpeg4_profile</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_mpeg4_profile</entry>
 	      </row>
 	      <row><entry spanname="descr">The profile information for MPEG4.
 Applicable to the MPEG4 encoder.
@@ -1820,9 +1820,9 @@ Applicable to the encoder.
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-multi-slice-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_multi_slice_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_multi_slice_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">Determines how the encoder should handle division of frame into slices.
 Applicable to the encoder.
@@ -1868,9 +1868,9 @@ Applicable to the encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-loop-filter-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_h264_loop_filter_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_h264_loop_filter_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">Loop filter mode for H264 encoder.
 Possible values are:</entry>
@@ -1913,9 +1913,9 @@ Applicable to the H264 encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-h264-entropy-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_h264_symbol_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_h264_entropy_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">Entropy coding mode for H264 - CABAC/CAVALC.
 Applicable to the H264 encoder.
@@ -2140,9 +2140,9 @@ previous frames. Applicable to the H264 encoder.</entry>
 	      </row>
 
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-video-header-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_HEADER_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_header_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_video_header_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">Determines whether the header is returned as the first buffer or is
 it returned together with the first frame. Applicable to encoders.
@@ -2320,9 +2320,9 @@ Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPE
 Applicable to the H264 encoder.</entry>
 	      </row>
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-mfc51-video-frame-skip-mode">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_mfc51_frame_skip_mode</entry>
+		<entry>enum&nbsp;v4l2_mpeg_mfc51_video_frame_skip_mode</entry>
 	      </row>
 	      <row><entry spanname="descr">
 Indicates in what conditions the encoder should skip frames. If encoding a frame would cause the encoded stream to be larger then
@@ -2361,9 +2361,9 @@ the stream will meet tight bandwidth contraints. Applicable to encoders.
 </entry>
 	      </row>
 	      <row><entry></entry></row>
-	      <row>
+	      <row id="v4l2-mpeg-mfc51-video-force-frame-type">
 		<entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE</constant>&nbsp;</entry>
-		<entry>enum&nbsp;v4l2_mpeg_mfc51_force_frame_type</entry>
+		<entry>enum&nbsp;v4l2_mpeg_mfc51_video_force_frame_type</entry>
 	      </row>
 	      <row><entry spanname="descr">Force a frame type for the next queued buffer. Applicable to encoders.
 Possible values are:</entry>

Documentation/hwmon/max16065

@@ -62,6 +62,13 @@ can be safely used to identify the chip. You will have to instantiate
 the devices explicitly. Please see Documentation/i2c/instantiating-devices for
 details.
 
+WARNING: Do not access chip registers using the i2cdump command, and do not use
+any of the i2ctools commands on a command register (0xa5 to 0xac). The chips
+supported by this driver interpret any access to a command register (including
+read commands) as request to execute the command in question. This may result in
+power loss, board resets, and/or Flash corruption. Worst case, your board may
+turn into a brick.
+
 
 Sysfs entries
 -------------

Documentation/ioctl/ioctl-number.txt

@@ -319,4 +319,6 @@ Code  Seq#(hex)	Include File		Comments
 					<mailto:thomas@winischhofer.net>
 0xF4	00-1F	video/mbxfb.h		mbxfb
 					<mailto:raph@8d.com>
+0xF6	all	LTTng			Linux Trace Toolkit Next Generation
+					<mailto:mathieu.desnoyers@efficios.com>
 0xFD	all	linux/dm-ioctl.h

Makefile

@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 1
 SUBLEVEL = 0
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc6
 NAME = "Divemaster Edition"
 
 # *DOCUMENTATION*

arch/arm/include/asm/hardware/cache-l2x0.h

@@ -45,8 +45,13 @@
 #define L2X0_CLEAN_INV_LINE_PA		0x7F0
 #define L2X0_CLEAN_INV_LINE_IDX		0x7F8
 #define L2X0_CLEAN_INV_WAY		0x7FC
-#define L2X0_LOCKDOWN_WAY_D		0x900
+/*
-#define L2X0_LOCKDOWN_WAY_I		0x904
+ * The lockdown registers repeat 8 times for L310, the L210 has only one
+ * D and one I lockdown register at 0x0900 and 0x0904.
+ */
+#define L2X0_LOCKDOWN_WAY_D_BASE	0x900
+#define L2X0_LOCKDOWN_WAY_I_BASE	0x904
+#define L2X0_LOCKDOWN_STRIDE		0x08
 #define L2X0_TEST_OPERATION		0xF00
 #define L2X0_LINE_DATA			0xF10
 #define L2X0_LINE_TAG			0xF30

arch/arm/mach-cns3xxx/include/mach/entry-macro.S

@@ -8,7 +8,6 @@
  * published by the Free Software Foundation.
  */
 
-#include <mach/hardware.h>
 #include <asm/hardware/entry-macro-gic.S>
 
 		.macro	disable_fiq

arch/arm/mach-cns3xxx/include/mach/system.h

@@ -13,7 +13,6 @@
 
 #include <linux/io.h>
 #include <asm/proc-fns.h>
-#include <mach/hardware.h>
 
 static inline void arch_idle(void)
 {

arch/arm/mach-cns3xxx/include/mach/uncompress.h

@@ -8,7 +8,6 @@
  */
 
 #include <asm/mach-types.h>
-#include <mach/hardware.h>
 #include <mach/cns3xxx.h>
 
 #define AMBA_UART_DR(base)	(*(volatile unsigned char *)((base) + 0x00))

arch/arm/mach-cns3xxx/pcie.c

@@ -49,7 +49,7 @@ static struct cns3xxx_pcie *sysdata_to_cnspci(void *sysdata)
 	return &cns3xxx_pcie[root->domain];
 }
 
-static struct cns3xxx_pcie *pdev_to_cnspci(struct pci_dev *dev)
+static struct cns3xxx_pcie *pdev_to_cnspci(const struct pci_dev *dev)
 {
 	return sysdata_to_cnspci(dev->sysdata);
 }

arch/arm/mach-davinci/board-da850-evm.c

@@ -115,6 +115,32 @@ static struct spi_board_info da850evm_spi_info[] = {
 	},
 };
 
+#ifdef CONFIG_MTD
+static void da850_evm_m25p80_notify_add(struct mtd_info *mtd)
+{
+	char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
+	size_t retlen;
+
+	if (!strcmp(mtd->name, "MAC-Address")) {
+		mtd->read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
+		if (retlen == ETH_ALEN)
+			pr_info("Read MAC addr from SPI Flash: %pM\n",
+				mac_addr);
+	}
+}
+
+static struct mtd_notifier da850evm_spi_notifier = {
+	.add	= da850_evm_m25p80_notify_add,
+};
+
+static void da850_evm_setup_mac_addr(void)
+{
+	register_mtd_user(&da850evm_spi_notifier);
+}
+#else
+static void da850_evm_setup_mac_addr(void) { }
+#endif
+
 static struct mtd_partition da850_evm_norflash_partition[] = {
 	{
 		.name           = "bootloaders + env",
@@ -1244,6 +1270,8 @@ static __init void da850_evm_init(void)
 	if (ret)
 		pr_warning("da850_evm_init: sata registration failed: %d\n",
 				ret);
+
+	da850_evm_setup_mac_addr();
 }
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE

arch/arm/mach-davinci/include/mach/psc.h

@@ -243,7 +243,7 @@
 #define PSC_STATE_DISABLE	2
 #define PSC_STATE_ENABLE	3
 
-#define MDSTAT_STATE_MASK	0x1f
+#define MDSTAT_STATE_MASK	0x3f
 #define MDCTL_FORCE		BIT(31)
 
 #ifndef __ASSEMBLER__

arch/arm/mach-davinci/sleep.S

@@ -217,7 +217,11 @@ ddr2clk_stop_done:
 ENDPROC(davinci_ddr_psc_config)
 
 CACHE_FLUSH:
+#ifdef CONFIG_CPU_V6
+	.word	v6_flush_kern_cache_all
+#else
 	.word   arm926_flush_kern_cache_all
+#endif
 
 ENTRY(davinci_cpu_suspend_sz)
 	.word	. - davinci_cpu_suspend

arch/arm/mach-integrator/integrator_ap.c

@@ -337,15 +337,15 @@ static unsigned long timer_reload;
 static void integrator_clocksource_init(u32 khz)
 {
 	void __iomem *base = (void __iomem *)TIMER2_VA_BASE;
-	u32 ctrl = TIMER_CTRL_ENABLE;
+	u32 ctrl = TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC;
 
 	if (khz >= 1500) {
 		khz /= 16;
-		ctrl = TIMER_CTRL_DIV16;
+		ctrl |= TIMER_CTRL_DIV16;
 	}
 
-	writel(ctrl, base + TIMER_CTRL);
 	writel(0xffff, base + TIMER_LOAD);
+	writel(ctrl, base + TIMER_CTRL);
 
 	clocksource_mmio_init(base + TIMER_VALUE, "timer2",
 		khz * 1000, 200, 16, clocksource_mmio_readl_down);

arch/arm/mach-omap2/clock3xxx_data.c

@@ -3078,6 +3078,7 @@ static struct clk gpt12_fck = {
 	.name		= "gpt12_fck",
 	.ops		= &clkops_null,
 	.parent		= &secure_32k_fck,
+	.clkdm_name	= "wkup_clkdm",
 	.recalc		= &followparent_recalc,
 };
 
@@ -3085,6 +3086,7 @@ static struct clk wdt1_fck = {
 	.name		= "wdt1_fck",
 	.ops		= &clkops_null,
 	.parent		= &secure_32k_fck,
+	.clkdm_name	= "wkup_clkdm",
 	.recalc		= &followparent_recalc,
 };
 

arch/arm/mach-omap2/clock44xx_data.c

@@ -3376,10 +3376,18 @@ int __init omap4xxx_clk_init(void)
 	} else if (cpu_is_omap446x()) {
 		cpu_mask = RATE_IN_4460;
 		cpu_clkflg = CK_446X;
+	} else {
+		return 0;
 	}
 
 	clk_init(&omap2_clk_functions);
-	omap2_clk_disable_clkdm_control();
+
+	/*
+	 * Must stay commented until all OMAP SoC drivers are
+	 * converted to runtime PM, or drivers may start crashing
+	 *
+	 * omap2_clk_disable_clkdm_control();
+	 */
 
 	for (c = omap44xx_clks; c < omap44xx_clks + ARRAY_SIZE(omap44xx_clks);
 									  c++)

arch/arm/mach-omap2/clockdomain.c

@@ -747,6 +747,7 @@ int clkdm_wakeup(struct clockdomain *clkdm)
 	spin_lock_irqsave(&clkdm->lock, flags);
 	clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED;
 	ret = arch_clkdm->clkdm_wakeup(clkdm);
+	ret |= pwrdm_state_switch(clkdm->pwrdm.ptr);
 	spin_unlock_irqrestore(&clkdm->lock, flags);
 	return ret;
 }
@@ -818,6 +819,7 @@ void clkdm_deny_idle(struct clockdomain *clkdm)
 	spin_lock_irqsave(&clkdm->lock, flags);
 	clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED;
 	arch_clkdm->clkdm_deny_idle(clkdm);
+	pwrdm_state_switch(clkdm->pwrdm.ptr);
 	spin_unlock_irqrestore(&clkdm->lock, flags);
 }
 

arch/arm/mach-omap2/omap_hwmod_2430_data.c

@@ -192,6 +192,7 @@ static struct omap_hwmod_addr_space omap2430_usbhsotg_addrs[] = {
 		.pa_end		= OMAP243X_HS_BASE + SZ_4K - 1,
 		.flags		= ADDR_TYPE_RT
 	},
+	{ }
 };
 
 /*  l4_core ->usbhsotg  interface */

arch/arm/mach-omap2/pm.c

@@ -130,7 +130,6 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
 		} else {
 			hwsup = clkdm_in_hwsup(pwrdm->pwrdm_clkdms[0]);
 			clkdm_wakeup(pwrdm->pwrdm_clkdms[0]);
-			pwrdm_wait_transition(pwrdm);
 			sleep_switch = FORCEWAKEUP_SWITCH;
 		}
 	}
@@ -156,7 +155,6 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
 		return ret;
 	}
 
-	pwrdm_wait_transition(pwrdm);
 	pwrdm_state_switch(pwrdm);
 err:
 	return ret;

arch/arm/mach-omap2/powerdomain.c

@@ -195,28 +195,35 @@ static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused)
 
 /**
  * pwrdm_init - set up the powerdomain layer
- * @pwrdm_list: array of struct powerdomain pointers to register
+ * @pwrdms: array of struct powerdomain pointers to register
  * @custom_funcs: func pointers for arch specific implementations
  *
- * Loop through the array of powerdomains @pwrdm_list, registering all
+ * Loop through the array of powerdomains @pwrdms, registering all
- * that are available on the current CPU. If pwrdm_list is supplied
+ * that are available on the current CPU.  Also, program all
- * and not null, all of the referenced powerdomains will be
+ * powerdomain target state as ON; this is to prevent domains from
- * registered.  No return value.  XXX pwrdm_list is not really a
+ * hitting low power states (if bootloader has target states set to
- * "list"; it is an array.  Rename appropriately.
+ * something other than ON) and potentially even losing context while
+ * PM is not fully initialized.  The PM late init code can then program
+ * the desired target state for all the power domains.  No return
+ * value.
  */
-void pwrdm_init(struct powerdomain **pwrdm_list, struct pwrdm_ops *custom_funcs)
+void pwrdm_init(struct powerdomain **pwrdms, struct pwrdm_ops *custom_funcs)
 {
 	struct powerdomain **p = NULL;
+	struct powerdomain *temp_p;
 
 	if (!custom_funcs)
 		WARN(1, "powerdomain: No custom pwrdm functions registered\n");
 	else
 		arch_pwrdm = custom_funcs;
 
-	if (pwrdm_list) {
+	if (pwrdms) {
-		for (p = pwrdm_list; *p; p++)
+		for (p = pwrdms; *p; p++)
 			_pwrdm_register(*p);
 	}
+
+	list_for_each_entry(temp_p, &pwrdm_list, node)
+		pwrdm_set_next_pwrst(temp_p, PWRDM_POWER_ON);
 }
 
 /**

arch/arm/mach-prima2/clock.c

@@ -481,6 +481,7 @@ static void __init sirfsoc_clk_init(void)
 
 static struct of_device_id clkc_ids[] = {
 	{ .compatible = "sirf,prima2-clkc" },
+	{},
 };
 
 void __init sirfsoc_of_clk_init(void)

arch/arm/mach-prima2/irq.c

@@ -51,6 +51,7 @@ static __init void sirfsoc_irq_init(void)
 
 static struct of_device_id intc_ids[]  = {
 	{ .compatible = "sirf,prima2-intc" },
+	{},
 };
 
 void __init sirfsoc_of_irq_init(void)

arch/arm/mach-prima2/rstc.c

@@ -19,6 +19,7 @@ static DEFINE_MUTEX(rstc_lock);
 
 static struct of_device_id rstc_ids[]  = {
 	{ .compatible = "sirf,prima2-rstc" },
+	{},
 };
 
 static int __init sirfsoc_of_rstc_init(void)

arch/arm/mach-prima2/timer.c

@@ -190,6 +190,7 @@ static void __init sirfsoc_timer_init(void)
 
 static struct of_device_id timer_ids[] = {
 	{ .compatible = "sirf,prima2-tick" },
+	{},
 };
 
 static void __init sirfsoc_of_timer_map(void)

arch/arm/mm/abort-macro.S

@@ -17,7 +17,7 @@
 	cmp	\tmp, # 0x5600			@ Is it ldrsb?
 	orreq	\tmp, \tmp, #1 << 11		@ Set L-bit if yes
 	tst	\tmp, #1 << 11			@ L = 0 -> write
-	orreq	\psr, \psr, #1 << 11		@ yes.
+	orreq	\fsr, \fsr, #1 << 11		@ yes.
 	b	do_DataAbort
 not_thumb:
 	.endm

arch/arm/mm/cache-l2x0.c

@@ -277,6 +277,25 @@ static void l2x0_disable(void)
 	spin_unlock_irqrestore(&l2x0_lock, flags);
 }
 
+static void __init l2x0_unlock(__u32 cache_id)
+{
+	int lockregs;
+	int i;
+
+	if (cache_id == L2X0_CACHE_ID_PART_L310)
+		lockregs = 8;
+	else
+		/* L210 and unknown types */
+		lockregs = 1;
+
+	for (i = 0; i < lockregs; i++) {
+		writel_relaxed(0x0, l2x0_base + L2X0_LOCKDOWN_WAY_D_BASE +
+			       i * L2X0_LOCKDOWN_STRIDE);
+		writel_relaxed(0x0, l2x0_base + L2X0_LOCKDOWN_WAY_I_BASE +
+			       i * L2X0_LOCKDOWN_STRIDE);
+	}
+}
+
 void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
 {
 	__u32 aux;
@@ -328,6 +347,8 @@ void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
 	 * accessing the below registers will fault.
 	 */
 	if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & 1)) {
+		/* Make sure that I&D is not locked down when starting */
+		l2x0_unlock(cache_id);
 
 		/* l2x0 controller is disabled */
 		writel_relaxed(aux, l2x0_base + L2X0_AUX_CTRL);

arch/arm/mm/init.c

@@ -298,7 +298,7 @@ static void __init arm_bootmem_free(unsigned long min, unsigned long max_low,
 #ifdef CONFIG_HAVE_ARCH_PFN_VALID
 int pfn_valid(unsigned long pfn)
 {
-	return memblock_is_memory(pfn << PAGE_SHIFT);
+	return memblock_is_memory(__pfn_to_phys(pfn));
 }
 EXPORT_SYMBOL(pfn_valid);
 #endif

arch/arm/plat-omap/omap_device.c

@@ -615,6 +615,9 @@ static int _od_resume_noirq(struct device *dev)
 
 	return pm_generic_resume_noirq(dev);
 }
+#else
+#define _od_suspend_noirq NULL
+#define _od_resume_noirq NULL
 #endif
 
 static struct dev_pm_domain omap_device_pm_domain = {

arch/openrisc/include/asm/dma-mapping.h

@@ -31,7 +31,6 @@
 
 #define DMA_ERROR_CODE		(~(dma_addr_t)0x0)
 
-int dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
 
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
@@ -47,6 +46,12 @@ dma_addr_t or1k_map_page(struct device *dev, struct page *page,
 void or1k_unmap_page(struct device *dev, dma_addr_t dma_handle,
 		     size_t size, enum dma_data_direction dir,
 		     struct dma_attrs *attrs);
+int or1k_map_sg(struct device *dev, struct scatterlist *sg,
+		int nents, enum dma_data_direction dir,
+		struct dma_attrs *attrs);
+void or1k_unmap_sg(struct device *dev, struct scatterlist *sg,
+		   int nents, enum dma_data_direction dir,
+		   struct dma_attrs *attrs);
 void or1k_sync_single_for_cpu(struct device *dev,
 			      dma_addr_t dma_handle, size_t size,
 			      enum dma_data_direction dir);
@@ -98,6 +103,51 @@ static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
 	debug_dma_unmap_page(dev, addr, size, dir, true);
 }
 
+static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
+				   int nents, enum dma_data_direction dir)
+{
+	int i, ents;
+	struct scatterlist *s;
+
+	for_each_sg(sg, s, nents, i)
+		kmemcheck_mark_initialized(sg_virt(s), s->length);
+	BUG_ON(!valid_dma_direction(dir));
+	ents = or1k_map_sg(dev, sg, nents, dir, NULL);
+	debug_dma_map_sg(dev, sg, nents, ents, dir);
+
+	return ents;
+}
+
+static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+				      int nents, enum dma_data_direction dir)
+{
+	BUG_ON(!valid_dma_direction(dir));
+	debug_dma_unmap_sg(dev, sg, nents, dir);
+	or1k_unmap_sg(dev, sg, nents, dir, NULL);
+}
+
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+				      size_t offset, size_t size,
+				      enum dma_data_direction dir)
+{
+	dma_addr_t addr;
+
+	kmemcheck_mark_initialized(page_address(page) + offset, size);
+	BUG_ON(!valid_dma_direction(dir));
+	addr = or1k_map_page(dev, page, offset, size, dir, NULL);
+	debug_dma_map_page(dev, page, offset, size, dir, addr, false);
+
+	return addr;
+}
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
+				  size_t size, enum dma_data_direction dir)
+{
+	BUG_ON(!valid_dma_direction(dir));
+	or1k_unmap_page(dev, addr, size, dir, NULL);
+	debug_dma_unmap_page(dev, addr, size, dir, true);
+}
+
 static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr,
 					   size_t size,
 					   enum dma_data_direction dir)
@@ -119,7 +169,12 @@ static inline void dma_sync_single_for_device(struct device *dev,
 static inline int dma_supported(struct device *dev, u64 dma_mask)
 {
 	/* Support 32 bit DMA mask exclusively */
-	return dma_mask == 0xffffffffULL;
+	return dma_mask == DMA_BIT_MASK(32);
+}
+
+static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return 0;
 }
 
 static inline int dma_set_mask(struct device *dev, u64 dma_mask)

arch/openrisc/include/asm/sigcontext.h

@@ -23,16 +23,11 @@
 
 /* This struct is saved by setup_frame in signal.c, to keep the current
    context while a signal handler is executed. It's restored by sys_sigreturn.
-
-   To keep things simple, we use pt_regs here even though normally you just
-   specify the list of regs to save. Then we can use copy_from_user on the
-   entire regs instead of a bunch of get_user's as well...
 */
 
 struct sigcontext {
-	struct pt_regs regs;  /* needs to be first */
+	struct user_regs_struct regs;  /* needs to be first */
 	unsigned long oldmask;
-	unsigned long usp;    /* usp before stacking this gunk on it */
 };
 
 #endif /* __ASM_OPENRISC_SIGCONTEXT_H */

arch/openrisc/kernel/dma.c

@@ -154,6 +154,33 @@ void or1k_unmap_page(struct device *dev, dma_addr_t dma_handle,
 	/* Nothing special to do here... */
 }
 
+int or1k_map_sg(struct device *dev, struct scatterlist *sg,
+		int nents, enum dma_data_direction dir,
+		struct dma_attrs *attrs)
+{
+	struct scatterlist *s;
+	int i;
+
+	for_each_sg(sg, s, nents, i) {
+		s->dma_address = or1k_map_page(dev, sg_page(s), s->offset,
+					       s->length, dir, NULL);
+	}
+
+	return nents;
+}
+
+void or1k_unmap_sg(struct device *dev, struct scatterlist *sg,
+		   int nents, enum dma_data_direction dir,
+		   struct dma_attrs *attrs)
+{
+	struct scatterlist *s;
+	int i;
+
+	for_each_sg(sg, s, nents, i) {
+		or1k_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir, NULL);
+	}
+}
+
 void or1k_sync_single_for_cpu(struct device *dev,
 			      dma_addr_t dma_handle, size_t size,
 			      enum dma_data_direction dir)
@@ -187,5 +214,4 @@ static int __init dma_init(void)
 
 	return 0;
 }
-
 fs_initcall(dma_init);

arch/openrisc/kernel/signal.c

@@ -52,31 +52,25 @@ struct rt_sigframe {
 static int restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc)
 {
 	unsigned int err = 0;
-	unsigned long old_usp;
 
 	/* Alwys make any pending restarted system call return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
-	/* restore the regs from &sc->regs (same as sc, since regs is first)
+	/*
+	 * Restore the regs from &sc->regs.
 	 * (sc is already checked for VERIFY_READ since the sigframe was
 	 *  checked in sys_sigreturn previously)
 	 */
-
+	if (__copy_from_user(regs, sc->regs.gpr, 32 * sizeof(unsigned long)))
-	if (__copy_from_user(regs, sc, sizeof(struct pt_regs)))
+		goto badframe;
+	if (__copy_from_user(&regs->pc, &sc->regs.pc, sizeof(unsigned long)))
+		goto badframe;
+	if (__copy_from_user(&regs->sr, &sc->regs.sr, sizeof(unsigned long)))
 		goto badframe;
 
 	/* make sure the SM-bit is cleared so user-mode cannot fool us */
 	regs->sr &= ~SPR_SR_SM;
 
-	/* restore the old USP as it was before we stacked the sc etc.
-	 * (we cannot just pop the sigcontext since we aligned the sp and
-	 *  stuff after pushing it)
-	 */
-
-	err |= __get_user(old_usp, &sc->usp);
-
-	regs->sp = old_usp;
-
 	/* TODO: the other ports use regs->orig_XX to disable syscall checks
 	 * after this completes, but we don't use that mechanism. maybe we can
 	 * use it now ?
@@ -137,18 +131,17 @@ static int setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
 			    unsigned long mask)
 {
 	int err = 0;
-	unsigned long usp = regs->sp;
 
-	/* copy the regs. they are first in sc so we can use sc directly */
+	/* copy the regs */
 
-	err |= __copy_to_user(sc, regs, sizeof(struct pt_regs));
+	err |= __copy_to_user(sc->regs.gpr, regs, 32 * sizeof(unsigned long));
+	err |= __copy_to_user(&sc->regs.pc, &regs->pc, sizeof(unsigned long));
+	err |= __copy_to_user(&sc->regs.sr, &regs->sr, sizeof(unsigned long));
 
 	/* then some other stuff */
 
 	err |= __put_user(mask, &sc->oldmask);
 
-	err |= __put_user(usp, &sc->usp);
-
 	return err;
 }
 

arch/x86/include/asm/pvclock.h

@@ -44,7 +44,7 @@ static inline u64 pvclock_scale_delta(u64 delta, u32 mul_frac, int shift)
 		: "a" ((u32)delta), "1" ((u32)(delta >> 32)), "2" (mul_frac) );
 #elif defined(__x86_64__)
 	__asm__ (
-		"mul %[mul_frac] ; shrd $32, %[hi], %[lo]"
+		"mulq %[mul_frac] ; shrd $32, %[hi], %[lo]"
 		: [lo]"=a"(product),
 		  [hi]"=d"(tmp)
 		: "0"(delta),

arch/x86/kernel/cpu/perf_event.c

@@ -1900,6 +1900,9 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
 
 	perf_callchain_store(entry, regs->ip);
 
+	if (!current->mm)
+		return;
+
 	if (perf_callchain_user32(regs, entry))
 		return;
 

arch/x86/pci/acpi.c

@@ -365,8 +365,13 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root)
 	 */
 	if (bus) {
 		struct pci_bus *child;
-		list_for_each_entry(child, &bus->children, node)
+		list_for_each_entry(child, &bus->children, node) {
-			pcie_bus_configure_settings(child, child->self->pcie_mpss);
+			struct pci_dev *self = child->self;
+			if (!self)
+				continue;
+
+			pcie_bus_configure_settings(child, self->pcie_mpss);
+		}
 	}
 
 	if (!bus)

arch/x86/xen/setup.c

@@ -184,6 +184,19 @@ static unsigned long __init xen_set_identity(const struct e820entry *list,
 					PFN_UP(start_pci), PFN_DOWN(last));
 	return identity;
 }
+
+static unsigned long __init xen_get_max_pages(void)
+{
+	unsigned long max_pages = MAX_DOMAIN_PAGES;
+	domid_t domid = DOMID_SELF;
+	int ret;
+
+	ret = HYPERVISOR_memory_op(XENMEM_maximum_reservation, &domid);
+	if (ret > 0)
+		max_pages = ret;
+	return min(max_pages, MAX_DOMAIN_PAGES);
+}
+
 /**
  * machine_specific_memory_setup - Hook for machine specific memory setup.
  **/
@@ -292,6 +305,12 @@ char * __init xen_memory_setup(void)
 
 	sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
 
+	extra_limit = xen_get_max_pages();
+	if (extra_limit >= max_pfn)
+		extra_pages = extra_limit - max_pfn;
+	else
+		extra_pages = 0;
+
 	extra_pages += xen_return_unused_memory(xen_start_info->nr_pages, &e820);
 
 	/*

arch/x86/xen/smp.c

@@ -32,6 +32,7 @@
 #include <xen/page.h>
 #include <xen/events.h>
 
+#include <xen/hvc-console.h>
 #include "xen-ops.h"
 #include "mmu.h"
 
@@ -207,6 +208,15 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
 	unsigned cpu;
 	unsigned int i;
 
+	if (skip_ioapic_setup) {
+		char *m = (max_cpus == 0) ?
+			"The nosmp parameter is incompatible with Xen; " \
+			"use Xen dom0_max_vcpus=1 parameter" :
+			"The noapic parameter is incompatible with Xen";
+
+		xen_raw_printk(m);
+		panic(m);
+	}
 	xen_init_lock_cpu(0);
 
 	smp_store_cpu_info(0);

arch/x86/xen/xen-asm_32.S

@@ -113,11 +113,13 @@ xen_iret_start_crit:
 
 	/*
 	 * If there's something pending, mask events again so we can
-	 * jump back into xen_hypervisor_callback
+	 * jump back into xen_hypervisor_callback. Otherwise do not
+	 * touch XEN_vcpu_info_mask.
 	 */
-	sete XEN_vcpu_info_mask(%eax)
+	jne 1f
+	movb $1, XEN_vcpu_info_mask(%eax)
 
-	popl %eax
+1:	popl %eax
 
 	/*
 	 * From this point on the registers are restored and the stack

drivers/base/regmap/regmap.c

@@ -168,13 +168,11 @@ struct regmap *regmap_init(struct device *dev,
 	map->work_buf = kmalloc(map->format.buf_size, GFP_KERNEL);
 	if (map->work_buf == NULL) {
 		ret = -ENOMEM;
-		goto err_bus;
+		goto err_map;
 	}
 
 	return map;
 
-err_bus:
-	module_put(map->bus->owner);
 err_map:
 	kfree(map);
 err:
@@ -188,7 +186,6 @@ EXPORT_SYMBOL_GPL(regmap_init);
 void regmap_exit(struct regmap *map)
 {
 	kfree(map->work_buf);
-	module_put(map->bus->owner);
 	kfree(map);
 }
 EXPORT_SYMBOL_GPL(regmap_exit);

drivers/dma/ste_dma40.c

@@ -174,8 +174,10 @@ struct d40_base;
  * @tasklet: Tasklet that gets scheduled from interrupt context to complete a
  * transfer and call client callback.
  * @client: Cliented owned descriptor list.
+ * @pending_queue: Submitted jobs, to be issued by issue_pending()
  * @active: Active descriptor.
  * @queue: Queued jobs.
+ * @prepare_queue: Prepared jobs.
  * @dma_cfg: The client configuration of this dma channel.
  * @configured: whether the dma_cfg configuration is valid
  * @base: Pointer to the device instance struct.
@@ -203,6 +205,7 @@ struct d40_chan {
 	struct list_head		 pending_queue;
 	struct list_head		 active;
 	struct list_head		 queue;
+	struct list_head		 prepare_queue;
 	struct stedma40_chan_cfg	 dma_cfg;
 	bool				 configured;
 	struct d40_base			*base;
@@ -477,7 +480,6 @@ static struct d40_desc *d40_desc_get(struct d40_chan *d40c)
 
 		list_for_each_entry_safe(d, _d, &d40c->client, node)
 			if (async_tx_test_ack(&d->txd)) {
-				d40_pool_lli_free(d40c, d);
 				d40_desc_remove(d);
 				desc = d;
 				memset(desc, 0, sizeof(*desc));
@@ -644,8 +646,11 @@ static struct d40_desc *d40_first_active_get(struct d40_chan *d40c)
 	return d;
 }
 
+/* remove desc from current queue and add it to the pending_queue */
 static void d40_desc_queue(struct d40_chan *d40c, struct d40_desc *desc)
 {
+	d40_desc_remove(desc);
+	desc->is_in_client_list = false;
 	list_add_tail(&desc->node, &d40c->pending_queue);
 }
 
@@ -803,6 +808,7 @@ done:
 static void d40_term_all(struct d40_chan *d40c)
 {
 	struct d40_desc *d40d;
+	struct d40_desc *_d;
 
 	/* Release active descriptors */
 	while ((d40d = d40_first_active_get(d40c))) {
@@ -822,6 +828,21 @@ static void d40_term_all(struct d40_chan *d40c)
 		d40_desc_free(d40c, d40d);
 	}
 
+	/* Release client owned descriptors */
+	if (!list_empty(&d40c->client))
+		list_for_each_entry_safe(d40d, _d, &d40c->client, node) {
+			d40_desc_remove(d40d);
+			d40_desc_free(d40c, d40d);
+		}
+
+	/* Release descriptors in prepare queue */
+	if (!list_empty(&d40c->prepare_queue))
+		list_for_each_entry_safe(d40d, _d,
+					 &d40c->prepare_queue, node) {
+			d40_desc_remove(d40d);
+			d40_desc_free(d40c, d40d);
+		}
+
 	d40c->pending_tx = 0;
 	d40c->busy = false;
 }
@@ -1208,7 +1229,6 @@ static void dma_tasklet(unsigned long data)
 
 	if (!d40d->cyclic) {
 		if (async_tx_test_ack(&d40d->txd)) {
-			d40_pool_lli_free(d40c, d40d);
 			d40_desc_remove(d40d);
 			d40_desc_free(d40c, d40d);
 		} else {
@@ -1595,21 +1615,10 @@ static int d40_free_dma(struct d40_chan *d40c)
 	u32 event;
 	struct d40_phy_res *phy = d40c->phy_chan;
 	bool is_src;
-	struct d40_desc *d;
-	struct d40_desc *_d;
-
 
 	/* Terminate all queued and active transfers */
 	d40_term_all(d40c);
 
-	/* Release client owned descriptors */
-	if (!list_empty(&d40c->client))
-		list_for_each_entry_safe(d, _d, &d40c->client, node) {
-			d40_pool_lli_free(d40c, d);
-			d40_desc_remove(d);
-			d40_desc_free(d40c, d);
-		}
-
 	if (phy == NULL) {
 		chan_err(d40c, "phy == null\n");
 		return -EINVAL;
@@ -1911,6 +1920,12 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src,
 		goto err;
 	}
 
+	/*
+	 * add descriptor to the prepare queue in order to be able
+	 * to free them later in terminate_all
+	 */
+	list_add_tail(&desc->node, &chan->prepare_queue);
+
 	spin_unlock_irqrestore(&chan->lock, flags);
 
 	return &desc->txd;
@@ -2400,6 +2415,7 @@ static void __init d40_chan_init(struct d40_base *base, struct dma_device *dma,
 		INIT_LIST_HEAD(&d40c->queue);
 		INIT_LIST_HEAD(&d40c->pending_queue);
 		INIT_LIST_HEAD(&d40c->client);
+		INIT_LIST_HEAD(&d40c->prepare_queue);
 
 		tasklet_init(&d40c->tasklet, dma_tasklet,
 			     (unsigned long) d40c);

drivers/gpu/drm/drm_fb_helper.c

@@ -256,7 +256,6 @@ int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed,
 {
 	printk(KERN_ERR "panic occurred, switching back to text console\n");
 	return drm_fb_helper_force_kernel_mode();
-	return 0;
 }
 EXPORT_SYMBOL(drm_fb_helper_panic);
 

drivers/gpu/drm/nouveau/nouveau_fence.c

@@ -530,7 +530,8 @@ nouveau_fence_channel_init(struct nouveau_channel *chan)
 		nouveau_gpuobj_ref(NULL, &obj);
 		if (ret)
 			return ret;
-	} else {
+	} else
+	if (USE_SEMA(dev)) {
 		/* map fence bo into channel's vm */
 		ret = nouveau_bo_vma_add(dev_priv->fence.bo, chan->vm,
 					 &chan->fence.vma);

drivers/gpu/drm/nouveau/nouveau_sgdma.c

@@ -37,8 +37,11 @@ nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages,
 		return -ENOMEM;
 
 	nvbe->ttm_alloced = kmalloc(sizeof(bool) * num_pages, GFP_KERNEL);
-	if (!nvbe->ttm_alloced)
+	if (!nvbe->ttm_alloced) {
+		kfree(nvbe->pages);
+		nvbe->pages = NULL;
 		return -ENOMEM;
+	}
 
 	nvbe->nr_pages = 0;
 	while (num_pages--) {
@@ -126,7 +129,7 @@ nv04_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
 
 		for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++, pte++) {
 			nv_wo32(gpuobj, (pte * 4) + 0, offset_l | 3);
-			dma_offset += NV_CTXDMA_PAGE_SIZE;
+			offset_l += NV_CTXDMA_PAGE_SIZE;
 		}
 	}
 

drivers/gpu/drm/nouveau/nv04_crtc.c

@@ -781,11 +781,20 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc,
 	struct drm_device *dev = crtc->dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nv04_crtc_reg *regp = &dev_priv->mode_reg.crtc_reg[nv_crtc->index];
-	struct drm_framebuffer *drm_fb = nv_crtc->base.fb;
+	struct drm_framebuffer *drm_fb;
-	struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
+	struct nouveau_framebuffer *fb;
 	int arb_burst, arb_lwm;
 	int ret;
 
+	NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
+
+	/* no fb bound */
+	if (!atomic && !crtc->fb) {
+		NV_DEBUG_KMS(dev, "No FB bound\n");
+		return 0;
+	}
+
+
 	/* If atomic, we want to switch to the fb we were passed, so
 	 * now we update pointers to do that.  (We don't pin; just
 	 * assume we're already pinned and update the base address.)
@@ -794,6 +803,8 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc,
 		drm_fb = passed_fb;
 		fb = nouveau_framebuffer(passed_fb);
 	} else {
+		drm_fb = crtc->fb;
+		fb = nouveau_framebuffer(crtc->fb);
 		/* If not atomic, we can go ahead and pin, and unpin the
 		 * old fb we were passed.
 		 */

drivers/gpu/drm/nouveau/nv50_crtc.c

@@ -519,12 +519,18 @@ nv50_crtc_do_mode_set_base(struct drm_crtc *crtc,
 	struct drm_device *dev = nv_crtc->base.dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_channel *evo = nv50_display(dev)->master;
-	struct drm_framebuffer *drm_fb = nv_crtc->base.fb;
+	struct drm_framebuffer *drm_fb;
-	struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
+	struct nouveau_framebuffer *fb;
 	int ret;
 
 	NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
 
+	/* no fb bound */
+	if (!atomic && !crtc->fb) {
+		NV_DEBUG_KMS(dev, "No FB bound\n");
+		return 0;
+	}
+
 	/* If atomic, we want to switch to the fb we were passed, so
 	 * now we update pointers to do that.  (We don't pin; just
 	 * assume we're already pinned and update the base address.)
@@ -533,6 +539,8 @@ nv50_crtc_do_mode_set_base(struct drm_crtc *crtc,
 		drm_fb = passed_fb;
 		fb = nouveau_framebuffer(passed_fb);
 	} else {
+		drm_fb = crtc->fb;
+		fb = nouveau_framebuffer(crtc->fb);
 		/* If not atomic, we can go ahead and pin, and unpin the
 		 * old fb we were passed.
 		 */

drivers/gpu/drm/radeon/radeon_connectors.c

@@ -1297,12 +1297,33 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
 		if (!radeon_dig_connector->edp_on)
 			atombios_set_edp_panel_power(connector,
 						     ATOM_TRANSMITTER_ACTION_POWER_OFF);
-	} else {
+	} else if (radeon_connector_encoder_is_dp_bridge(connector)) {
+		/* DP bridges are always DP */
+		radeon_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
+		/* get the DPCD from the bridge */
+		radeon_dp_getdpcd(radeon_connector);
+
+		if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))
+			ret = connector_status_connected;
+		else {
 			/* need to setup ddc on the bridge */
-		if (radeon_connector_encoder_is_dp_bridge(connector)) {
 			if (encoder)
 				radeon_atom_ext_encoder_setup_ddc(encoder);
+			if (radeon_ddc_probe(radeon_connector,
+					     radeon_connector->requires_extended_probe))
+				ret = connector_status_connected;
 		}
+
+		if ((ret == connector_status_disconnected) &&
+		    radeon_connector->dac_load_detect) {
+			struct drm_encoder *encoder = radeon_best_single_encoder(connector);
+			struct drm_encoder_helper_funcs *encoder_funcs;
+			if (encoder) {
+				encoder_funcs = encoder->helper_private;
+				ret = encoder_funcs->detect(encoder, connector);
+			}
+		}
+	} else {
 		radeon_dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector);
 		if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
 			ret = connector_status_connected;
@@ -1318,16 +1339,6 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
 					ret = connector_status_connected;
 			}
 		}
-
-		if ((ret == connector_status_disconnected) &&
-		    radeon_connector->dac_load_detect) {
-			struct drm_encoder *encoder = radeon_best_single_encoder(connector);
-			struct drm_encoder_helper_funcs *encoder_funcs;
-			if (encoder) {
-				encoder_funcs = encoder->helper_private;
-				ret = encoder_funcs->detect(encoder, connector);
-			}
-		}
 	}
 
 	radeon_connector_update_scratch_regs(connector, ret);

drivers/gpu/drm/radeon/radeon_display.c

@@ -707,16 +707,21 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
 		radeon_router_select_ddc_port(radeon_connector);
 
 	if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
-	    (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
+	    (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) ||
+	    radeon_connector_encoder_is_dp_bridge(&radeon_connector->base)) {
 		struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
+
 		if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
 		     dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus)
-			radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter);
+			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
-	}
+							      &dig->dp_i2c_bus->adapter);
-	if (!radeon_connector->ddc_bus)
+		else if (radeon_connector->ddc_bus && !radeon_connector->edid)
-		return -1;
+			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
-	if (!radeon_connector->edid) {
+							      &radeon_connector->ddc_bus->adapter);
-		radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
+	} else {
+		if (radeon_connector->ddc_bus && !radeon_connector->edid)
+			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
+							      &radeon_connector->ddc_bus->adapter);
 	}
 
 	if (!radeon_connector->edid) {

drivers/hid/hid-ids.h

@@ -277,6 +277,7 @@
 #define USB_DEVICE_ID_PENPOWER		0x00f4
 
 #define USB_VENDOR_ID_GREENASIA		0x0e8f
+#define USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD	0x3013
 
 #define USB_VENDOR_ID_GRETAGMACBETH	0x0971
 #define USB_DEVICE_ID_GRETAGMACBETH_HUEY	0x2005

drivers/hid/hid-magicmouse.c

@@ -81,6 +81,28 @@ MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state fie
 #define NO_TOUCHES -1
 #define SINGLE_TOUCH_UP -2
 
+/* Touch surface information. Dimension is in hundredths of a mm, min and max
+ * are in units. */
+#define MOUSE_DIMENSION_X (float)9056
+#define MOUSE_MIN_X -1100
+#define MOUSE_MAX_X 1258
+#define MOUSE_RES_X ((MOUSE_MAX_X - MOUSE_MIN_X) / (MOUSE_DIMENSION_X / 100))
+#define MOUSE_DIMENSION_Y (float)5152
+#define MOUSE_MIN_Y -1589
+#define MOUSE_MAX_Y 2047
+#define MOUSE_RES_Y ((MOUSE_MAX_Y - MOUSE_MIN_Y) / (MOUSE_DIMENSION_Y / 100))
+
+#define TRACKPAD_DIMENSION_X (float)13000
+#define TRACKPAD_MIN_X -2909
+#define TRACKPAD_MAX_X 3167
+#define TRACKPAD_RES_X \
+	((TRACKPAD_MAX_X - TRACKPAD_MIN_X) / (TRACKPAD_DIMENSION_X / 100))
+#define TRACKPAD_DIMENSION_Y (float)11000
+#define TRACKPAD_MIN_Y -2456
+#define TRACKPAD_MAX_Y 2565
+#define TRACKPAD_RES_Y \
+	((TRACKPAD_MAX_Y - TRACKPAD_MIN_Y) / (TRACKPAD_DIMENSION_Y / 100))
+
 /**
  * struct magicmouse_sc - Tracks Magic Mouse-specific data.
  * @input: Input device through which we report events.
@@ -406,17 +428,31 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h
 		 * inverse of the reported Y.
 		 */
 		if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
-			input_set_abs_params(input, ABS_MT_POSITION_X, -1100,
+			input_set_abs_params(input, ABS_MT_POSITION_X,
-				1358, 4, 0);
+				MOUSE_MIN_X, MOUSE_MAX_X, 4, 0);
-			input_set_abs_params(input, ABS_MT_POSITION_Y, -1589,
+			input_set_abs_params(input, ABS_MT_POSITION_Y,
-				2047, 4, 0);
+				MOUSE_MIN_Y, MOUSE_MAX_Y, 4, 0);
+
+			input_abs_set_res(input, ABS_MT_POSITION_X,
+				MOUSE_RES_X);
+			input_abs_set_res(input, ABS_MT_POSITION_Y,
+				MOUSE_RES_Y);
 		} else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
-			input_set_abs_params(input, ABS_X, -2909, 3167, 4, 0);
+			input_set_abs_params(input, ABS_X, TRACKPAD_MIN_X,
-			input_set_abs_params(input, ABS_Y, -2456, 2565, 4, 0);
+				TRACKPAD_MAX_X, 4, 0);
-			input_set_abs_params(input, ABS_MT_POSITION_X, -2909,
+			input_set_abs_params(input, ABS_Y, TRACKPAD_MIN_Y,
-				3167, 4, 0);
+				TRACKPAD_MAX_Y, 4, 0);
-			input_set_abs_params(input, ABS_MT_POSITION_Y, -2456,
+			input_set_abs_params(input, ABS_MT_POSITION_X,
-				2565, 4, 0);
+				TRACKPAD_MIN_X, TRACKPAD_MAX_X, 4, 0);
+			input_set_abs_params(input, ABS_MT_POSITION_Y,
+				TRACKPAD_MIN_Y, TRACKPAD_MAX_Y, 4, 0);
+
+			input_abs_set_res(input, ABS_X, TRACKPAD_RES_X);
+			input_abs_set_res(input, ABS_Y, TRACKPAD_RES_Y);
+			input_abs_set_res(input, ABS_MT_POSITION_X,
+				TRACKPAD_RES_X);
+			input_abs_set_res(input, ABS_MT_POSITION_Y,
+				TRACKPAD_RES_Y);
 		}
 
 		input_set_events_per_packet(input, 60);
@@ -501,9 +537,17 @@ static int magicmouse_probe(struct hid_device *hdev,
 	}
 	report->size = 6;
 
+	/*
+	 * Some devices repond with 'invalid report id' when feature
+	 * report switching it into multitouch mode is sent to it.
+	 *
+	 * This results in -EIO from the _raw low-level transport callback,
+	 * but there seems to be no other way of switching the mode.
+	 * Thus the super-ugly hacky success check below.
+	 */
 	ret = hdev->hid_output_raw_report(hdev, feature, sizeof(feature),
 			HID_FEATURE_REPORT);
-	if (ret != sizeof(feature)) {
+	if (ret != -EIO && ret != sizeof(feature)) {
 		hid_err(hdev, "unable to request touch data (%d)\n", ret);
 		goto err_stop_hw;
 	}

drivers/hid/hid-wacom.c

@@ -353,11 +353,7 @@ static int wacom_probe(struct hid_device *hdev,
 	if (ret) {
 		hid_warn(hdev, "can't create sysfs battery attribute, err: %d\n",
 			 ret);
-		/*
+		goto err_battery;
-		 * battery attribute is not critical for the tablet, but if it
-		 * failed then there is no need to create ac attribute
-		 */
-		goto move_on;
 	}
 
 	wdata->ac.properties = wacom_ac_props;
@@ -371,14 +367,8 @@ static int wacom_probe(struct hid_device *hdev,
 	if (ret) {
 		hid_warn(hdev,
 			 "can't create ac battery attribute, err: %d\n", ret);
-		/*
+		goto err_ac;
-		 * ac attribute is not critical for the tablet, but if it
-		 * failed then we don't want to battery attribute to exist
-		 */
-		power_supply_unregister(&wdata->battery);
 	}
-
-move_on:
 #endif
 	hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
 	input = hidinput->input;
@@ -416,6 +406,13 @@ move_on:
 
 	return 0;
 
+#ifdef CONFIG_HID_WACOM_POWER_SUPPLY
+err_ac:
+	power_supply_unregister(&wdata->battery);
+err_battery:
+	device_remove_file(&hdev->dev, &dev_attr_speed);
+	hid_hw_stop(hdev);
+#endif
 err_free:
 	kfree(wdata);
 	return ret;
@@ -426,6 +423,7 @@ static void wacom_remove(struct hid_device *hdev)
 #ifdef CONFIG_HID_WACOM_POWER_SUPPLY
 	struct wacom_data *wdata = hid_get_drvdata(hdev);
 #endif
+	device_remove_file(&hdev->dev, &dev_attr_speed);
 	hid_hw_stop(hdev);
 
 #ifdef CONFIG_HID_WACOM_POWER_SUPPLY

drivers/hid/usbhid/hid-quirks.c

@@ -47,6 +47,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL },
 
 	{ USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
 	{ USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS, HID_QUIRK_MULTI_INPUT },

drivers/hwmon/max16065.c

@@ -124,7 +124,7 @@ static inline int MV_TO_LIMIT(int mv, int range)
 
 static inline int ADC_TO_CURR(int adc, int gain)
 {
-	return adc * 1400000 / gain * 255;
+	return adc * 1400000 / (gain * 255);
 }
 
 /*

drivers/hwmon/pmbus/ucd9000.c

@@ -141,13 +141,11 @@ static int ucd9000_probe(struct i2c_client *client,
 	block_buffer[ret] = '\0';
 	dev_info(&client->dev, "Device ID %s\n", block_buffer);
 
-	mid = NULL;
+	for (mid = ucd9000_id; mid->name[0]; mid++) {
-	for (i = 0; i < ARRAY_SIZE(ucd9000_id); i++) {
-		mid = &ucd9000_id[i];
 		if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
 			break;
 	}
-	if (!mid || !strlen(mid->name)) {
+	if (!mid->name[0]) {
 		dev_err(&client->dev, "Unsupported device\n");
 		return -ENODEV;
 	}

drivers/hwmon/pmbus/ucd9200.c

@@ -68,13 +68,11 @@ static int ucd9200_probe(struct i2c_client *client,
 	block_buffer[ret] = '\0';
 	dev_info(&client->dev, "Device ID %s\n", block_buffer);
 
-	mid = NULL;
+	for (mid = ucd9200_id; mid->name[0]; mid++) {
-	for (i = 0; i < ARRAY_SIZE(ucd9200_id); i++) {
-		mid = &ucd9200_id[i];
 		if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
 			break;
 	}
-	if (!mid || !strlen(mid->name)) {
+	if (!mid->name[0]) {
 		dev_err(&client->dev, "Unsupported device\n");
 		return -ENODEV;
 	}

drivers/i2c/busses/i2c-pxa-pci.c

@@ -109,12 +109,15 @@ static int __devinit ce4100_i2c_probe(struct pci_dev *dev,
 		return -EINVAL;
 	}
 	sds = kzalloc(sizeof(*sds), GFP_KERNEL);
-	if (!sds)
+	if (!sds) {
+		ret = -ENOMEM;
 		goto err_mem;
+	}
 
 	for (i = 0; i < ARRAY_SIZE(sds->pdev); i++) {
 		sds->pdev[i] = add_i2c_device(dev, i);
 		if (IS_ERR(sds->pdev[i])) {
+			ret = PTR_ERR(sds->pdev[i]);
 			while (--i >= 0)
 				platform_device_unregister(sds->pdev[i]);
 			goto err_dev_add;

drivers/i2c/busses/i2c-tegra.c

@@ -270,14 +270,30 @@ static int tegra_i2c_fill_tx_fifo(struct tegra_i2c_dev *i2c_dev)
 
 	/* Rounds down to not include partial word at the end of buf */
 	words_to_transfer = buf_remaining / BYTES_PER_FIFO_WORD;
+
+	/* It's very common to have < 4 bytes, so optimize that case. */
+	if (words_to_transfer) {
 		if (words_to_transfer > tx_fifo_avail)
 			words_to_transfer = tx_fifo_avail;
 
+		/*
+		 * Update state before writing to FIFO.  If this casues us
+		 * to finish writing all bytes (AKA buf_remaining goes to 0) we
+		 * have a potential for an interrupt (PACKET_XFER_COMPLETE is
+		 * not maskable).  We need to make sure that the isr sees
+		 * buf_remaining as 0 and doesn't call us back re-entrantly.
+		 */
+		buf_remaining -= words_to_transfer * BYTES_PER_FIFO_WORD;
+		tx_fifo_avail -= words_to_transfer;
+		i2c_dev->msg_buf_remaining = buf_remaining;
+		i2c_dev->msg_buf = buf +
+			words_to_transfer * BYTES_PER_FIFO_WORD;
+		barrier();
+
 		i2c_writesl(i2c_dev, buf, I2C_TX_FIFO, words_to_transfer);
 
 		buf += words_to_transfer * BYTES_PER_FIFO_WORD;
-	buf_remaining -= words_to_transfer * BYTES_PER_FIFO_WORD;
+	}
-	tx_fifo_avail -= words_to_transfer;
 
 	/*
 	 * If there is a partial word at the end of buf, handle it manually to
@@ -287,14 +303,15 @@ static int tegra_i2c_fill_tx_fifo(struct tegra_i2c_dev *i2c_dev)
 	if (tx_fifo_avail > 0 && buf_remaining > 0) {
 		BUG_ON(buf_remaining > 3);
 		memcpy(&val, buf, buf_remaining);
+
+		/* Again update before writing to FIFO to make sure isr sees. */
+		i2c_dev->msg_buf_remaining = 0;
+		i2c_dev->msg_buf = NULL;
+		barrier();
+
 		i2c_writel(i2c_dev, val, I2C_TX_FIFO);
-		buf_remaining = 0;
-		tx_fifo_avail--;
 	}
 
-	BUG_ON(tx_fifo_avail > 0 && buf_remaining > 0);
-	i2c_dev->msg_buf_remaining = buf_remaining;
-	i2c_dev->msg_buf = buf;
 	return 0;
 }
 
@@ -411,9 +428,10 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id)
 			tegra_i2c_mask_irq(i2c_dev, I2C_INT_TX_FIFO_DATA_REQ);
 	}
 
-	if ((status & I2C_INT_PACKET_XFER_COMPLETE) &&
+	if (status & I2C_INT_PACKET_XFER_COMPLETE) {
-			!i2c_dev->msg_buf_remaining)
+		BUG_ON(i2c_dev->msg_buf_remaining);
 		complete(&i2c_dev->msg_complete);
+	}
 
 	i2c_writel(i2c_dev, status, I2C_INT_STATUS);
 	if (i2c_dev->is_dvc)
@@ -531,7 +549,7 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
 
 static u32 tegra_i2c_func(struct i2c_adapter *adap)
 {
-	return I2C_FUNC_I2C;
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
 }
 
 static const struct i2c_algorithm tegra_i2c_algo = {
@@ -719,6 +737,17 @@ static int tegra_i2c_resume(struct platform_device *pdev)
 }
 #endif
 
+#if defined(CONFIG_OF)
+/* Match table for of_platform binding */
+static const struct of_device_id tegra_i2c_of_match[] __devinitconst = {
+	{ .compatible = "nvidia,tegra20-i2c", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, tegra_i2c_of_match);
+#else
+#define tegra_i2c_of_match NULL
+#endif
+
 static struct platform_driver tegra_i2c_driver = {
 	.probe   = tegra_i2c_probe,
 	.remove  = tegra_i2c_remove,
@@ -729,6 +758,7 @@ static struct platform_driver tegra_i2c_driver = {
 	.driver  = {
 		.name  = "tegra-i2c",
 		.owner = THIS_MODULE,
+		.of_match_table = tegra_i2c_of_match,
 	},
 };
 

drivers/iommu/amd_iommu.c

@@ -605,7 +605,9 @@ static void build_inv_all(struct iommu_cmd *cmd)
  * Writes the command to the IOMMUs command buffer and informs the
  * hardware about the new command.
  */
-static int iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd)
+static int iommu_queue_command_sync(struct amd_iommu *iommu,
+				    struct iommu_cmd *cmd,
+				    bool sync)
 {
 	u32 left, tail, head, next_tail;
 	unsigned long flags;
@@ -639,13 +641,18 @@ again:
 	copy_cmd_to_buffer(iommu, cmd, tail);
 
 	/* We need to sync now to make sure all commands are processed */
-	iommu->need_sync = true;
+	iommu->need_sync = sync;
 
 	spin_unlock_irqrestore(&iommu->lock, flags);
 
 	return 0;
 }
 
+static int iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd)
+{
+	return iommu_queue_command_sync(iommu, cmd, true);
+}
+
 /*
  * This function queues a completion wait command into the command
  * buffer of an IOMMU
@@ -661,7 +668,7 @@ static int iommu_completion_wait(struct amd_iommu *iommu)
 
 	build_completion_wait(&cmd, (u64)&sem);
 
-	ret = iommu_queue_command(iommu, &cmd);
+	ret = iommu_queue_command_sync(iommu, &cmd, false);
 	if (ret)
 		return ret;
 
@@ -840,14 +847,9 @@ static void domain_flush_complete(struct protection_domain *domain)
 static void domain_flush_devices(struct protection_domain *domain)
 {
 	struct iommu_dev_data *dev_data;
-	unsigned long flags;
-
-	spin_lock_irqsave(&domain->lock, flags);
 
 	list_for_each_entry(dev_data, &domain->dev_list, list)
 		device_flush_dte(dev_data);
-
-	spin_unlock_irqrestore(&domain->lock, flags);
 }
 
 /****************************************************************************

drivers/md/md.c

@@ -1138,8 +1138,11 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version
 			ret = 0;
 	}
 	rdev->sectors = rdev->sb_start;
+	/* Limit to 4TB as metadata cannot record more than that */
+	if (rdev->sectors >= (2ULL << 32))
+		rdev->sectors = (2ULL << 32) - 2;
 
-	if (rdev->sectors < sb->size * 2 && sb->level > 1)
+	if (rdev->sectors < ((sector_t)sb->size) * 2 && sb->level >= 1)
 		/* "this cannot possibly happen" ... */
 		ret = -EINVAL;
 
@@ -1173,7 +1176,7 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
 		mddev->clevel[0] = 0;
 		mddev->layout = sb->layout;
 		mddev->raid_disks = sb->raid_disks;
-		mddev->dev_sectors = sb->size * 2;
+		mddev->dev_sectors = ((sector_t)sb->size) * 2;
 		mddev->events = ev1;
 		mddev->bitmap_info.offset = 0;
 		mddev->bitmap_info.default_offset = MD_SB_BYTES >> 9;
@@ -1415,6 +1418,11 @@ super_90_rdev_size_change(mdk_rdev_t *rdev, sector_t num_sectors)
 	rdev->sb_start = calc_dev_sboffset(rdev);
 	if (!num_sectors || num_sectors > rdev->sb_start)
 		num_sectors = rdev->sb_start;
+	/* Limit to 4TB as metadata cannot record more than that.
+	 * 4TB == 2^32 KB, or 2*2^32 sectors.
+	 */
+	if (num_sectors >= (2ULL << 32))
+		num_sectors = (2ULL << 32) - 2;
 	md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
 		       rdev->sb_page);
 	md_super_wait(rdev->mddev);

drivers/md/raid1.c

@@ -1099,12 +1099,11 @@ read_again:
 		bio_list_add(&conf->pending_bio_list, mbio);
 		spin_unlock_irqrestore(&conf->device_lock, flags);
 	}
-	r1_bio_write_done(r1_bio);
+	/* Mustn't call r1_bio_write_done before this next test,
-
+	 * as it could result in the bio being freed.
-	/* In case raid1d snuck in to freeze_array */
+	 */
-	wake_up(&conf->wait_barrier);
-
 	if (sectors_handled < (bio->bi_size >> 9)) {
+		r1_bio_write_done(r1_bio);
 		/* We need another r1_bio.  It has already been counted
 		 * in bio->bi_phys_segments
 		 */
@@ -1117,6 +1116,11 @@ read_again:
 		goto retry_write;
 	}
 
+	r1_bio_write_done(r1_bio);
+
+	/* In case raid1d snuck in to freeze_array */
+	wake_up(&conf->wait_barrier);
+
 	if (do_sync || !bitmap || !plugged)
 		md_wakeup_thread(mddev->thread);
 

drivers/md/raid10.c

@@ -337,6 +337,21 @@ static void close_write(r10bio_t *r10_bio)
 	md_write_end(r10_bio->mddev);
 }
 
+static void one_write_done(r10bio_t *r10_bio)
+{
+	if (atomic_dec_and_test(&r10_bio->remaining)) {
+		if (test_bit(R10BIO_WriteError, &r10_bio->state))
+			reschedule_retry(r10_bio);
+		else {
+			close_write(r10_bio);
+			if (test_bit(R10BIO_MadeGood, &r10_bio->state))
+				reschedule_retry(r10_bio);
+			else
+				raid_end_bio_io(r10_bio);
+		}
+	}
+}
+
 static void raid10_end_write_request(struct bio *bio, int error)
 {
 	int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
@@ -387,17 +402,7 @@ static void raid10_end_write_request(struct bio *bio, int error)
 	 * Let's see if all mirrored write operations have finished
 	 * already.
 	 */
-	if (atomic_dec_and_test(&r10_bio->remaining)) {
+	one_write_done(r10_bio);
-		if (test_bit(R10BIO_WriteError, &r10_bio->state))
-			reschedule_retry(r10_bio);
-		else {
-			close_write(r10_bio);
-			if (test_bit(R10BIO_MadeGood, &r10_bio->state))
-				reschedule_retry(r10_bio);
-			else
-				raid_end_bio_io(r10_bio);
-		}
-	}
 	if (dec_rdev)
 		rdev_dec_pending(conf->mirrors[dev].rdev, conf->mddev);
 }
@@ -1127,20 +1132,12 @@ retry_write:
 		spin_unlock_irqrestore(&conf->device_lock, flags);
 	}
 
-	if (atomic_dec_and_test(&r10_bio->remaining)) {
+	/* Don't remove the bias on 'remaining' (one_write_done) until
-		/* This matches the end of raid10_end_write_request() */
+	 * after checking if we need to go around again.
-		bitmap_endwrite(r10_bio->mddev->bitmap, r10_bio->sector,
+	 */
-				r10_bio->sectors,
-				!test_bit(R10BIO_Degraded, &r10_bio->state),
-				0);
-		md_write_end(mddev);
-		raid_end_bio_io(r10_bio);
-	}
-
-	/* In case raid10d snuck in to freeze_array */
-	wake_up(&conf->wait_barrier);
 
 	if (sectors_handled < (bio->bi_size >> 9)) {
+		one_write_done(r10_bio);
 		/* We need another r10_bio.  It has already been counted
 		 * in bio->bi_phys_segments.
 		 */
@@ -1154,6 +1151,10 @@ retry_write:
 		r10_bio->state = 0;
 		goto retry_write;
 	}
+	one_write_done(r10_bio);
+
+	/* In case raid10d snuck in to freeze_array */
+	wake_up(&conf->wait_barrier);
 
 	if (do_sync || !mddev->bitmap || !plugged)
 		md_wakeup_thread(mddev->thread);

drivers/media/dvb/dvb-usb/vp7045.c

@@ -224,26 +224,8 @@ static struct dvb_usb_device_properties vp7045_properties;
 static int vp7045_usb_probe(struct usb_interface *intf,
 		const struct usb_device_id *id)
 {
-	struct dvb_usb_device *d;
+	return dvb_usb_device_init(intf, &vp7045_properties,
-	int ret = dvb_usb_device_init(intf, &vp7045_properties,
+				   THIS_MODULE, NULL, adapter_nr);
-				   THIS_MODULE, &d, adapter_nr);
-	if (ret)
-		return ret;
-
-	d->priv = kmalloc(20, GFP_KERNEL);
-	if (!d->priv) {
-		dvb_usb_device_exit(intf);
-		return -ENOMEM;
-	}
-
-	return ret;
-}
-
-static void vp7045_usb_disconnect(struct usb_interface *intf)
-{
-	struct dvb_usb_device *d = usb_get_intfdata(intf);
-	kfree(d->priv);
-	dvb_usb_device_exit(intf);
 }
 
 static struct usb_device_id vp7045_usb_table [] = {
@@ -258,7 +240,7 @@ MODULE_DEVICE_TABLE(usb, vp7045_usb_table);
 static struct dvb_usb_device_properties vp7045_properties = {
 	.usb_ctrl = CYPRESS_FX2,
 	.firmware = "dvb-usb-vp7045-01.fw",
-	.size_of_priv = sizeof(u8 *),
+	.size_of_priv = 20,
 
 	.num_adapters = 1,
 	.adapter = {
@@ -305,7 +287,7 @@ static struct dvb_usb_device_properties vp7045_properties = {
 static struct usb_driver vp7045_usb_driver = {
 	.name		= "dvb_usb_vp7045",
 	.probe		= vp7045_usb_probe,
-	.disconnect	= vp7045_usb_disconnect,
+	.disconnect	= dvb_usb_device_exit,
 	.id_table	= vp7045_usb_table,
 };
 

drivers/media/rc/nuvoton-cir.c

@@ -618,7 +618,6 @@ static void nvt_dump_rx_buf(struct nvt_dev *nvt)
 static void nvt_process_rx_ir_data(struct nvt_dev *nvt)
 {
 	DEFINE_IR_RAW_EVENT(rawir);
-	unsigned int count;
 	u32 carrier;
 	u8 sample;
 	int i;
@@ -631,65 +630,38 @@ static void nvt_process_rx_ir_data(struct nvt_dev *nvt)
 	if (nvt->carrier_detect_enabled)
 		carrier = nvt_rx_carrier_detect(nvt);
 
-	count = nvt->pkts;
+	nvt_dbg_verbose("Processing buffer of len %d", nvt->pkts);
-	nvt_dbg_verbose("Processing buffer of len %d", count);
 
 	init_ir_raw_event(&rawir);
 
-	for (i = 0; i < count; i++) {
+	for (i = 0; i < nvt->pkts; i++) {
-		nvt->pkts--;
 		sample = nvt->buf[i];
 
 		rawir.pulse = ((sample & BUF_PULSE_BIT) != 0);
 		rawir.duration = US_TO_NS((sample & BUF_LEN_MASK)
 					  * SAMPLE_PERIOD);
 
-		if ((sample & BUF_LEN_MASK) == BUF_LEN_MASK) {
-			if (nvt->rawir.pulse == rawir.pulse)
-				nvt->rawir.duration += rawir.duration;
-			else {
-				nvt->rawir.duration = rawir.duration;
-				nvt->rawir.pulse = rawir.pulse;
-			}
-			continue;
-		}
-
-		rawir.duration += nvt->rawir.duration;
-
-		init_ir_raw_event(&nvt->rawir);
-		nvt->rawir.duration = 0;
-		nvt->rawir.pulse = rawir.pulse;
-
-		if (sample == BUF_PULSE_BIT)
-			rawir.pulse = false;
-
-		if (rawir.duration) {
 		nvt_dbg("Storing %s with duration %d",
-				rawir.pulse ? "pulse" : "space",
+			rawir.pulse ? "pulse" : "space", rawir.duration);
-				rawir.duration);
 
 		ir_raw_event_store_with_filter(nvt->rdev, &rawir);
-		}
 
 		/*
 		 * BUF_PULSE_BIT indicates end of IR data, BUF_REPEAT_BYTE
 		 * indicates end of IR signal, but new data incoming. In both
 		 * cases, it means we're ready to call ir_raw_event_handle
 		 */
-		if ((sample == BUF_PULSE_BIT) && nvt->pkts) {
+		if ((sample == BUF_PULSE_BIT) && (i + 1 < nvt->pkts)) {
 			nvt_dbg("Calling ir_raw_event_handle (signal end)\n");
 			ir_raw_event_handle(nvt->rdev);
 		}
 	}
 
+	nvt->pkts = 0;
+
 	nvt_dbg("Calling ir_raw_event_handle (buffer empty)\n");
 	ir_raw_event_handle(nvt->rdev);
 
-	if (nvt->pkts) {
-		nvt_dbg("Odd, pkts should be 0 now... (its %u)", nvt->pkts);
-		nvt->pkts = 0;
-	}
-
 	nvt_dbg_verbose("%s done", __func__);
 }
 
@@ -1048,7 +1020,6 @@ static int nvt_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id)
 
 	spin_lock_init(&nvt->nvt_lock);
 	spin_lock_init(&nvt->tx.lock);
-	init_ir_raw_event(&nvt->rawir);
 
 	ret = -EBUSY;
 	/* now claim resources */

drivers/media/rc/nuvoton-cir.h

@@ -67,7 +67,6 @@ static int debug;
 struct nvt_dev {
 	struct pnp_dev *pdev;
 	struct rc_dev *rdev;
-	struct ir_raw_event rawir;
 
 	spinlock_t nvt_lock;
 

drivers/media/video/gspca/ov519.c

@@ -2858,7 +2858,6 @@ static void ov7xx0_configure(struct sd *sd)
 			case 0x60:
 				PDEBUG(D_PROBE, "Sensor is a OV7660");
 				sd->sensor = SEN_OV7660;
-				sd->invert_led = 0;
 				break;
 			default:
 				PDEBUG(D_PROBE, "Unknown sensor: 0x76%x", low);
@@ -3337,7 +3336,6 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	case BRIDGE_OV519:
 		cam->cam_mode = ov519_vga_mode;
 		cam->nmodes = ARRAY_SIZE(ov519_vga_mode);
-		sd->invert_led = !sd->invert_led;
 		break;
 	case BRIDGE_OVFX2:
 		cam->cam_mode = ov519_vga_mode;
@@ -5005,24 +5003,24 @@ static const struct sd_desc sd_desc = {
 /* -- module initialisation -- */
 static const struct usb_device_id device_table[] = {
 	{USB_DEVICE(0x041e, 0x4003), .driver_info = BRIDGE_W9968CF },
-	{USB_DEVICE(0x041e, 0x4052), .driver_info = BRIDGE_OV519 },
+	{USB_DEVICE(0x041e, 0x4052),
-	{USB_DEVICE(0x041e, 0x405f),
 		.driver_info = BRIDGE_OV519 | BRIDGE_INVERT_LED },
+	{USB_DEVICE(0x041e, 0x405f), .driver_info = BRIDGE_OV519 },
 	{USB_DEVICE(0x041e, 0x4060), .driver_info = BRIDGE_OV519 },
 	{USB_DEVICE(0x041e, 0x4061), .driver_info = BRIDGE_OV519 },
-	{USB_DEVICE(0x041e, 0x4064),
+	{USB_DEVICE(0x041e, 0x4064), .driver_info = BRIDGE_OV519 },
-		.driver_info = BRIDGE_OV519 | BRIDGE_INVERT_LED },
 	{USB_DEVICE(0x041e, 0x4067), .driver_info = BRIDGE_OV519 },
-	{USB_DEVICE(0x041e, 0x4068),
+	{USB_DEVICE(0x041e, 0x4068), .driver_info = BRIDGE_OV519 },
+	{USB_DEVICE(0x045e, 0x028c),
 		.driver_info = BRIDGE_OV519 | BRIDGE_INVERT_LED },
-	{USB_DEVICE(0x045e, 0x028c), .driver_info = BRIDGE_OV519 },
 	{USB_DEVICE(0x054c, 0x0154), .driver_info = BRIDGE_OV519 },
-	{USB_DEVICE(0x054c, 0x0155),
+	{USB_DEVICE(0x054c, 0x0155), .driver_info = BRIDGE_OV519 },
-		.driver_info = BRIDGE_OV519 | BRIDGE_INVERT_LED },
 	{USB_DEVICE(0x05a9, 0x0511), .driver_info = BRIDGE_OV511 },
 	{USB_DEVICE(0x05a9, 0x0518), .driver_info = BRIDGE_OV518 },
-	{USB_DEVICE(0x05a9, 0x0519), .driver_info = BRIDGE_OV519 },
+	{USB_DEVICE(0x05a9, 0x0519),
-	{USB_DEVICE(0x05a9, 0x0530), .driver_info = BRIDGE_OV519 },
+		.driver_info = BRIDGE_OV519 | BRIDGE_INVERT_LED },
+	{USB_DEVICE(0x05a9, 0x0530),
+		.driver_info = BRIDGE_OV519 | BRIDGE_INVERT_LED },
 	{USB_DEVICE(0x05a9, 0x2800), .driver_info = BRIDGE_OVFX2 },
 	{USB_DEVICE(0x05a9, 0x4519), .driver_info = BRIDGE_OV519 },
 	{USB_DEVICE(0x05a9, 0x8519), .driver_info = BRIDGE_OV519 },

drivers/media/video/gspca/sonixj.c

@@ -2386,7 +2386,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
 		reg_w1(gspca_dev, 0x01, 0x22);
 		msleep(100);
 		reg01 = SCL_SEL_OD | S_PDN_INV;
-		reg17 &= MCK_SIZE_MASK;
+		reg17 &= ~MCK_SIZE_MASK;
 		reg17 |= 0x04;		/* clock / 4 */
 		break;
 	}
@@ -2532,6 +2532,10 @@ static int sd_start(struct gspca_dev *gspca_dev)
 		if (!mode) {			/* if 640x480 */
 			reg17 &= ~MCK_SIZE_MASK;
 			reg17 |= 0x04;		/* clock / 4 */
+		} else {
+			reg01 &= ~SYS_SEL_48M;	/* clk 24Mz */
+			reg17 &= ~MCK_SIZE_MASK;
+			reg17 |= 0x02;		/* clock / 2 */
 		}
 		break;
 	case SENSOR_OV7630:

drivers/media/video/pwc/pwc-v4l.c

@@ -338,7 +338,7 @@ int pwc_init_controls(struct pwc_device *pdev)
 	if (pdev->restore_factory)
 		pdev->restore_factory->flags = V4L2_CTRL_FLAG_UPDATE;
 
-	if (!pdev->features & FEATURE_MOTOR_PANTILT)
+	if (!(pdev->features & FEATURE_MOTOR_PANTILT))
 		return hdl->error;
 
 	/* Motor pan / tilt / reset */

drivers/media/video/via-camera.c

@@ -1332,6 +1332,8 @@ static __devinit bool viacam_serial_is_enabled(void)
 	struct pci_bus *pbus = pci_find_bus(0, 0);
 	u8 cbyte;
 
+	if (!pbus)
+		return false;
 	pci_bus_read_config_byte(pbus, VIACAM_SERIAL_DEVFN,
 			VIACAM_SERIAL_CREG, &cbyte);
 	if ((cbyte & VIACAM_SERIAL_BIT) == 0)

drivers/mmc/core/core.c

@@ -133,7 +133,7 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
 		if (mrq->done)
 			mrq->done(mrq);
 
-		mmc_host_clk_gate(host);
+		mmc_host_clk_release(host);
 	}
 }
 
@@ -192,7 +192,7 @@ mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
 			mrq->stop->mrq = mrq;
 		}
 	}
-	mmc_host_clk_ungate(host);
+	mmc_host_clk_hold(host);
 	led_trigger_event(host->led, LED_FULL);
 	host->ops->request(host, mrq);
 }
@@ -728,15 +728,17 @@ static inline void mmc_set_ios(struct mmc_host *host)
  */
 void mmc_set_chip_select(struct mmc_host *host, int mode)
 {
+	mmc_host_clk_hold(host);
 	host->ios.chip_select = mode;
 	mmc_set_ios(host);
+	mmc_host_clk_release(host);
 }
 
 /*
  * Sets the host clock to the highest possible frequency that
  * is below "hz".
  */
-void mmc_set_clock(struct mmc_host *host, unsigned int hz)
+static void __mmc_set_clock(struct mmc_host *host, unsigned int hz)
 {
 	WARN_ON(hz < host->f_min);
 
@@ -747,6 +749,13 @@ void mmc_set_clock(struct mmc_host *host, unsigned int hz)
 	mmc_set_ios(host);
 }
 
+void mmc_set_clock(struct mmc_host *host, unsigned int hz)
+{
+	mmc_host_clk_hold(host);
+	__mmc_set_clock(host, hz);
+	mmc_host_clk_release(host);
+}
+
 #ifdef CONFIG_MMC_CLKGATE
 /*
  * This gates the clock by setting it to 0 Hz.
@@ -779,7 +788,7 @@ void mmc_ungate_clock(struct mmc_host *host)
 	if (host->clk_old) {
 		BUG_ON(host->ios.clock);
 		/* This call will also set host->clk_gated to false */
-		mmc_set_clock(host, host->clk_old);
+		__mmc_set_clock(host, host->clk_old);
 	}
 }
 
@@ -807,8 +816,10 @@ void mmc_set_ungated(struct mmc_host *host)
  */
 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode)
 {
+	mmc_host_clk_hold(host);
 	host->ios.bus_mode = mode;
 	mmc_set_ios(host);
+	mmc_host_clk_release(host);
 }
 
 /*
@@ -816,8 +827,10 @@ void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode)
  */
 void mmc_set_bus_width(struct mmc_host *host, unsigned int width)
 {
+	mmc_host_clk_hold(host);
 	host->ios.bus_width = width;
 	mmc_set_ios(host);
+	mmc_host_clk_release(host);
 }
 
 /**
@@ -1015,8 +1028,10 @@ u32 mmc_select_voltage(struct mmc_host *host, u32 ocr)
 
 		ocr &= 3 << bit;
 
+		mmc_host_clk_hold(host);
 		host->ios.vdd = bit;
 		mmc_set_ios(host);
+		mmc_host_clk_release(host);
 	} else {
 		pr_warning("%s: host doesn't support card's voltages\n",
 				mmc_hostname(host));
@@ -1063,8 +1078,10 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, bool cmd11
  */
 void mmc_set_timing(struct mmc_host *host, unsigned int timing)
 {
+	mmc_host_clk_hold(host);
 	host->ios.timing = timing;
 	mmc_set_ios(host);
+	mmc_host_clk_release(host);
 }
 
 /*
@@ -1072,8 +1089,10 @@ void mmc_set_timing(struct mmc_host *host, unsigned int timing)
  */
 void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type)
 {
+	mmc_host_clk_hold(host);
 	host->ios.drv_type = drv_type;
 	mmc_set_ios(host);
+	mmc_host_clk_release(host);
 }
 
 /*
@@ -1091,6 +1110,8 @@ static void mmc_power_up(struct mmc_host *host)
 {
 	int bit;
 
+	mmc_host_clk_hold(host);
+
 	/* If ocr is set, we use it */
 	if (host->ocr)
 		bit = ffs(host->ocr) - 1;
@@ -1126,10 +1147,14 @@ static void mmc_power_up(struct mmc_host *host)
 	 * time required to reach a stable voltage.
 	 */
 	mmc_delay(10);
+
+	mmc_host_clk_release(host);
 }
 
 static void mmc_power_off(struct mmc_host *host)
 {
+	mmc_host_clk_hold(host);
+
 	host->ios.clock = 0;
 	host->ios.vdd = 0;
 
@@ -1147,6 +1172,8 @@ static void mmc_power_off(struct mmc_host *host)
 	host->ios.bus_width = MMC_BUS_WIDTH_1;
 	host->ios.timing = MMC_TIMING_LEGACY;
 	mmc_set_ios(host);
+
+	mmc_host_clk_release(host);
 }
 
 /*

drivers/mmc/core/host.c

@@ -119,14 +119,14 @@ static void mmc_host_clk_gate_work(struct work_struct *work)
 }
 
 /**
- *	mmc_host_clk_ungate - ungate hardware MCI clocks
+ *	mmc_host_clk_hold - ungate hardware MCI clocks
  *	@host: host to ungate.
  *
  *	Makes sure the host ios.clock is restored to a non-zero value
  *	past this call.	Increase clock reference count and ungate clock
  *	if we're the first user.
  */
-void mmc_host_clk_ungate(struct mmc_host *host)
+void mmc_host_clk_hold(struct mmc_host *host)
 {
 	unsigned long flags;
 
@@ -164,14 +164,14 @@ static bool mmc_host_may_gate_card(struct mmc_card *card)
 }
 
 /**
- *	mmc_host_clk_gate - gate off hardware MCI clocks
+ *	mmc_host_clk_release - gate off hardware MCI clocks
  *	@host: host to gate.
  *
  *	Calls the host driver with ios.clock set to zero as often as possible
  *	in order to gate off hardware MCI clocks. Decrease clock reference
  *	count and schedule disabling of clock.
  */
-void mmc_host_clk_gate(struct mmc_host *host)
+void mmc_host_clk_release(struct mmc_host *host)
 {
 	unsigned long flags;
 
@@ -179,7 +179,7 @@ void mmc_host_clk_gate(struct mmc_host *host)
 	host->clk_requests--;
 	if (mmc_host_may_gate_card(host->card) &&
 	    !host->clk_requests)
-		schedule_work(&host->clk_gate_work);
+		queue_work(system_nrt_wq, &host->clk_gate_work);
 	spin_unlock_irqrestore(&host->clk_lock, flags);
 }
 
@@ -231,7 +231,7 @@ static inline void mmc_host_clk_exit(struct mmc_host *host)
 	if (cancel_work_sync(&host->clk_gate_work))
 		mmc_host_clk_gate_delayed(host);
 	if (host->clk_gated)
-		mmc_host_clk_ungate(host);
+		mmc_host_clk_hold(host);
 	/* There should be only one user now */
 	WARN_ON(host->clk_requests > 1);
 }

drivers/mmc/core/host.h

@@ -16,16 +16,16 @@ int mmc_register_host_class(void);
 void mmc_unregister_host_class(void);
 
 #ifdef CONFIG_MMC_CLKGATE
-void mmc_host_clk_ungate(struct mmc_host *host);
+void mmc_host_clk_hold(struct mmc_host *host);
-void mmc_host_clk_gate(struct mmc_host *host);
+void mmc_host_clk_release(struct mmc_host *host);
 unsigned int mmc_host_clk_rate(struct mmc_host *host);
 
 #else
-static inline void mmc_host_clk_ungate(struct mmc_host *host)
+static inline void mmc_host_clk_hold(struct mmc_host *host)
 {
 }
 
-static inline void mmc_host_clk_gate(struct mmc_host *host)
+static inline void mmc_host_clk_release(struct mmc_host *host)
 {
 }
 

drivers/mmc/core/sd.c

@@ -469,56 +469,75 @@ static int sd_select_driver_type(struct mmc_card *card, u8 *status)
 	return 0;
 }
 
-static int sd_set_bus_speed_mode(struct mmc_card *card, u8 *status)
+static void sd_update_bus_speed_mode(struct mmc_card *card)
 {
-	unsigned int bus_speed = 0, timing = 0;
-	int err;
-
 	/*
 	 * If the host doesn't support any of the UHS-I modes, fallback on
 	 * default speed.
 	 */
 	if (!(card->host->caps & (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 |
-	    MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 | MMC_CAP_UHS_DDR50)))
+	    MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 | MMC_CAP_UHS_DDR50))) {
-		return 0;
+		card->sd_bus_speed = 0;
+		return;
+	}
 
 	if ((card->host->caps & MMC_CAP_UHS_SDR104) &&
 	    (card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR104)) {
-			bus_speed = UHS_SDR104_BUS_SPEED;
+			card->sd_bus_speed = UHS_SDR104_BUS_SPEED;
-			timing = MMC_TIMING_UHS_SDR104;
-			card->sw_caps.uhs_max_dtr = UHS_SDR104_MAX_DTR;
 	} else if ((card->host->caps & MMC_CAP_UHS_DDR50) &&
 		   (card->sw_caps.sd3_bus_mode & SD_MODE_UHS_DDR50)) {
-			bus_speed = UHS_DDR50_BUS_SPEED;
+			card->sd_bus_speed = UHS_DDR50_BUS_SPEED;
-			timing = MMC_TIMING_UHS_DDR50;
-			card->sw_caps.uhs_max_dtr = UHS_DDR50_MAX_DTR;
 	} else if ((card->host->caps & (MMC_CAP_UHS_SDR104 |
 		    MMC_CAP_UHS_SDR50)) && (card->sw_caps.sd3_bus_mode &
 		    SD_MODE_UHS_SDR50)) {
-			bus_speed = UHS_SDR50_BUS_SPEED;
+			card->sd_bus_speed = UHS_SDR50_BUS_SPEED;
-			timing = MMC_TIMING_UHS_SDR50;
-			card->sw_caps.uhs_max_dtr = UHS_SDR50_MAX_DTR;
 	} else if ((card->host->caps & (MMC_CAP_UHS_SDR104 |
 		    MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR25)) &&
 		   (card->sw_caps.sd3_bus_mode & SD_MODE_UHS_SDR25)) {
-			bus_speed = UHS_SDR25_BUS_SPEED;
+			card->sd_bus_speed = UHS_SDR25_BUS_SPEED;
-			timing = MMC_TIMING_UHS_SDR25;
-			card->sw_caps.uhs_max_dtr = UHS_SDR25_MAX_DTR;
 	} else if ((card->host->caps & (MMC_CAP_UHS_SDR104 |
 		    MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR25 |
 		    MMC_CAP_UHS_SDR12)) && (card->sw_caps.sd3_bus_mode &
 		    SD_MODE_UHS_SDR12)) {
-			bus_speed = UHS_SDR12_BUS_SPEED;
+			card->sd_bus_speed = UHS_SDR12_BUS_SPEED;
-			timing = MMC_TIMING_UHS_SDR12;
+	}
-			card->sw_caps.uhs_max_dtr = UHS_SDR12_MAX_DTR;
 }
 
-	card->sd_bus_speed = bus_speed;
+static int sd_set_bus_speed_mode(struct mmc_card *card, u8 *status)
-	err = mmc_sd_switch(card, 1, 0, bus_speed, status);
+{
+	int err;
+	unsigned int timing = 0;
+
+	switch (card->sd_bus_speed) {
+	case UHS_SDR104_BUS_SPEED:
+		timing = MMC_TIMING_UHS_SDR104;
+		card->sw_caps.uhs_max_dtr = UHS_SDR104_MAX_DTR;
+		break;
+	case UHS_DDR50_BUS_SPEED:
+		timing = MMC_TIMING_UHS_DDR50;
+		card->sw_caps.uhs_max_dtr = UHS_DDR50_MAX_DTR;
+		break;
+	case UHS_SDR50_BUS_SPEED:
+		timing = MMC_TIMING_UHS_SDR50;
+		card->sw_caps.uhs_max_dtr = UHS_SDR50_MAX_DTR;
+		break;
+	case UHS_SDR25_BUS_SPEED:
+		timing = MMC_TIMING_UHS_SDR25;
+		card->sw_caps.uhs_max_dtr = UHS_SDR25_MAX_DTR;
+		break;
+	case UHS_SDR12_BUS_SPEED:
+		timing = MMC_TIMING_UHS_SDR12;
+		card->sw_caps.uhs_max_dtr = UHS_SDR12_MAX_DTR;
+		break;
+	default:
+		return 0;
+	}
+
+	err = mmc_sd_switch(card, 1, 0, card->sd_bus_speed, status);
 	if (err)
 		return err;
 
-	if ((status[16] & 0xF) != bus_speed)
+	if ((status[16] & 0xF) != card->sd_bus_speed)
 		printk(KERN_WARNING "%s: Problem setting bus speed mode!\n",
 			mmc_hostname(card->host));
 	else {
@@ -618,18 +637,24 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
 		mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
 	}
 
+	/*
+	 * Select the bus speed mode depending on host
+	 * and card capability.
+	 */
+	sd_update_bus_speed_mode(card);
+
 	/* Set the driver strength for the card */
 	err = sd_select_driver_type(card, status);
 	if (err)
 		goto out;
 
-	/* Set bus speed mode of the card */
+	/* Set current limit for the card */
-	err = sd_set_bus_speed_mode(card, status);
+	err = sd_set_current_limit(card, status);
 	if (err)
 		goto out;
 
-	/* Set current limit for the card */
+	/* Set bus speed mode of the card */
-	err = sd_set_current_limit(card, status);
+	err = sd_set_bus_speed_mode(card, status);
 	if (err)
 		goto out;
 

drivers/mmc/host/sdhci-esdhc-imx.c

@@ -16,6 +16,7 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/gpio.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/mmc.h>

drivers/mmc/host/sdhci-s3c.c

@@ -302,6 +302,8 @@ static int sdhci_s3c_platform_8bit_width(struct sdhci_host *host, int width)
 		ctrl &= ~SDHCI_CTRL_8BITBUS;
 		break;
 	default:
+		ctrl &= ~SDHCI_CTRL_4BITBUS;
+		ctrl &= ~SDHCI_CTRL_8BITBUS;
 		break;
 	}
 

drivers/mmc/host/sh_mobile_sdhi.c

@@ -120,11 +120,11 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
 	mmc_data->hclk = clk_get_rate(priv->clk);
 	mmc_data->set_pwr = sh_mobile_sdhi_set_pwr;
 	mmc_data->get_cd = sh_mobile_sdhi_get_cd;
-	if (mmc_data->flags & TMIO_MMC_HAS_IDLE_WAIT)
-		mmc_data->write16_hook = sh_mobile_sdhi_write16_hook;
 	mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED;
 	if (p) {
 		mmc_data->flags = p->tmio_flags;
+		if (mmc_data->flags & TMIO_MMC_HAS_IDLE_WAIT)
+			mmc_data->write16_hook = sh_mobile_sdhi_write16_hook;
 		mmc_data->ocr_mask = p->tmio_ocr_mask;
 		mmc_data->capabilities |= p->tmio_caps;
 

drivers/mtd/ubi/debug.h

@@ -181,7 +181,7 @@ static inline int ubi_dbg_is_erase_failure(const struct ubi_device *ubi)
 
 #define ubi_dbg_msg(fmt, ...) do {                                           \
 	if (0)                                                               \
-		pr_debug(fmt "\n", ##__VA_ARGS__);                           \
+		printk(KERN_DEBUG fmt "\n", ##__VA_ARGS__);                  \
 } while (0)
 
 #define dbg_msg(fmt, ...)  ubi_dbg_msg(fmt, ##__VA_ARGS__)

drivers/net/arm/am79c961a.c

@@ -308,8 +308,11 @@ static void am79c961_timer(unsigned long data)
 	struct net_device *dev = (struct net_device *)data;
 	struct dev_priv *priv = netdev_priv(dev);
 	unsigned int lnkstat, carrier;
+	unsigned long flags;
 
+	spin_lock_irqsave(&priv->chip_lock, flags);
 	lnkstat = read_ireg(dev->base_addr, ISALED0) & ISALED0_LNKST;
+	spin_unlock_irqrestore(&priv->chip_lock, flags);
 	carrier = netif_carrier_ok(dev);
 
 	if (lnkstat && !carrier) {

drivers/pci/hotplug/pcihp_slot.c

@@ -169,7 +169,9 @@ void pci_configure_slot(struct pci_dev *dev)
 			(dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)))
 		return;
 
-	pcie_bus_configure_settings(dev->bus, dev->bus->self->pcie_mpss);
+	if (dev->bus && dev->bus->self)
+		pcie_bus_configure_settings(dev->bus,
+					    dev->bus->self->pcie_mpss);
 
 	memset(&hpp, 0, sizeof(hpp));
 	ret = pci_get_hp_params(dev, &hpp);

drivers/pci/pci.c

@@ -77,7 +77,7 @@ unsigned long pci_cardbus_mem_size = DEFAULT_CARDBUS_MEM_SIZE;
 unsigned long pci_hotplug_io_size  = DEFAULT_HOTPLUG_IO_SIZE;
 unsigned long pci_hotplug_mem_size = DEFAULT_HOTPLUG_MEM_SIZE;
 
-enum pcie_bus_config_types pcie_bus_config = PCIE_BUS_PERFORMANCE;
+enum pcie_bus_config_types pcie_bus_config = PCIE_BUS_SAFE;
 
 /*
  * The default CLS is used if arch didn't set CLS explicitly and not

drivers/pci/probe.c

@@ -1396,34 +1396,37 @@ static void pcie_write_mps(struct pci_dev *dev, int mps)
 
 static void pcie_write_mrrs(struct pci_dev *dev, int mps)
 {
-	int rc, mrrs;
+	int rc, mrrs, dev_mpss;
 
-	if (pcie_bus_config == PCIE_BUS_PERFORMANCE) {
+	/* In the "safe" case, do not configure the MRRS.  There appear to be
-		int dev_mpss = 128 << dev->pcie_mpss;
+	 * issues with setting MRRS to 0 on a number of devices.
-
-		/* For Max performance, the MRRS must be set to the largest
-		 * supported value.  However, it cannot be configured larger
-		 * than the MPS the device or the bus can support.  This assumes
-		 * that the largest MRRS available on the device cannot be
-		 * smaller than the device MPSS.
 	 */
-		mrrs = mps < dev_mpss ? mps : dev_mpss;
-	} else
-		/* In the "safe" case, configure the MRRS for fairness on the
-		 * bus by making all devices have the same size
-		 */
-		mrrs = mps;
 
+	if (pcie_bus_config != PCIE_BUS_PERFORMANCE)
+		return;
+
+	dev_mpss = 128 << dev->pcie_mpss;
+
+	/* For Max performance, the MRRS must be set to the largest supported
+	 * value.  However, it cannot be configured larger than the MPS the
+	 * device or the bus can support.  This assumes that the largest MRRS
+	 * available on the device cannot be smaller than the device MPSS.
+	 */
+	mrrs = min(mps, dev_mpss);
 
 	/* MRRS is a R/W register.  Invalid values can be written, but a
-	 * subsiquent read will verify if the value is acceptable or not.
+	 * subsequent read will verify if the value is acceptable or not.
 	 * If the MRRS value provided is not acceptable (e.g., too large),
 	 * shrink the value until it is acceptable to the HW.
  	 */
 	while (mrrs != pcie_get_readrq(dev) && mrrs >= 128) {
+		dev_warn(&dev->dev, "Attempting to modify the PCI-E MRRS value"
+			 " to %d.  If any issues are encountered, please try "
+			 "running with pci=pcie_bus_safe\n", mrrs);
 		rc = pcie_set_readrq(dev, mrrs);
 		if (rc)
-			dev_err(&dev->dev, "Failed attempting to set the MRRS\n");
+			dev_err(&dev->dev,
+				"Failed attempting to set the MRRS\n");
 
 		mrrs /= 2;
 	}
@@ -1436,13 +1439,13 @@ static int pcie_bus_configure_set(struct pci_dev *dev, void *data)
 	if (!pci_is_pcie(dev))
 		return 0;
 
-	dev_info(&dev->dev, "Dev MPS %d MPSS %d MRRS %d\n",
+	dev_dbg(&dev->dev, "Dev MPS %d MPSS %d MRRS %d\n",
 		 pcie_get_mps(dev), 128<<dev->pcie_mpss, pcie_get_readrq(dev));
 
 	pcie_write_mps(dev, mps);
 	pcie_write_mrrs(dev, mps);
 
-	dev_info(&dev->dev, "Dev MPS %d MPSS %d MRRS %d\n",
+	dev_dbg(&dev->dev, "Dev MPS %d MPSS %d MRRS %d\n",
 		 pcie_get_mps(dev), 128<<dev->pcie_mpss, pcie_get_readrq(dev));
 
 	return 0;
@@ -1456,9 +1459,6 @@ void pcie_bus_configure_settings(struct pci_bus *bus, u8 mpss)
 {
 	u8 smpss = mpss;
 
-	if (!bus->self)
-		return;
-
 	if (!pci_is_pcie(bus->self))
 		return;
 

drivers/rtc/rtc-ep93xx.c

@@ -36,6 +36,7 @@
  */
 struct ep93xx_rtc {
 	void __iomem	*mmio_base;
+	struct rtc_device *rtc;
 };
 
 static int ep93xx_rtc_get_swcomp(struct device *dev, unsigned short *preload,
@@ -130,7 +131,6 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev)
 {
 	struct ep93xx_rtc *ep93xx_rtc;
 	struct resource *res;
-	struct rtc_device *rtc;
 	int err;
 
 	ep93xx_rtc = devm_kzalloc(&pdev->dev, sizeof(*ep93xx_rtc), GFP_KERNEL);
@@ -151,12 +151,12 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev)
 		return -ENXIO;
 
 	pdev->dev.platform_data = ep93xx_rtc;
-	platform_set_drvdata(pdev, rtc);
+	platform_set_drvdata(pdev, ep93xx_rtc);
 
-	rtc = rtc_device_register(pdev->name,
+	ep93xx_rtc->rtc = rtc_device_register(pdev->name,
 				&pdev->dev, &ep93xx_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtc)) {
+	if (IS_ERR(ep93xx_rtc->rtc)) {
-		err = PTR_ERR(rtc);
+		err = PTR_ERR(ep93xx_rtc->rtc);
 		goto exit;
 	}
 
@@ -167,7 +167,7 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev)
 	return 0;
 
 fail:
-	rtc_device_unregister(rtc);
+	rtc_device_unregister(ep93xx_rtc->rtc);
 exit:
 	platform_set_drvdata(pdev, NULL);
 	pdev->dev.platform_data = NULL;
@@ -176,11 +176,11 @@ exit:
 
 static int __exit ep93xx_rtc_remove(struct platform_device *pdev)
 {
-	struct rtc_device *rtc = platform_get_drvdata(pdev);
+	struct ep93xx_rtc *ep93xx_rtc = platform_get_drvdata(pdev);
 
 	sysfs_remove_group(&pdev->dev.kobj, &ep93xx_rtc_sysfs_files);
 	platform_set_drvdata(pdev, NULL);
-	rtc_device_unregister(rtc);
+	rtc_device_unregister(ep93xx_rtc->rtc);
 	pdev->dev.platform_data = NULL;
 
 	return 0;

drivers/rtc/rtc-lib.c

@@ -85,6 +85,8 @@ void rtc_time_to_tm(unsigned long time, struct rtc_time *tm)
 	time -= tm->tm_hour * 3600;
 	tm->tm_min = time / 60;
 	tm->tm_sec = time - tm->tm_min * 60;
+
+	tm->tm_isdst = 0;
 }
 EXPORT_SYMBOL(rtc_time_to_tm);
 

drivers/rtc/rtc-twl.c

@@ -362,14 +362,6 @@ static irqreturn_t twl_rtc_interrupt(int irq, void *rtc)
 	int res;
 	u8 rd_reg;
 
-#ifdef CONFIG_LOCKDEP
-	/* WORKAROUND for lockdep forcing IRQF_DISABLED on us, which
-	 * we don't want and can't tolerate.  Although it might be
-	 * friendlier not to borrow this thread context...
-	 */
-	local_irq_enable();
-#endif
-
 	res = twl_rtc_read_u8(&rd_reg, REG_RTC_STATUS_REG);
 	if (res)
 		goto out;
@@ -428,24 +420,12 @@ static struct rtc_class_ops twl_rtc_ops = {
 static int __devinit twl_rtc_probe(struct platform_device *pdev)
 {
 	struct rtc_device *rtc;
-	int ret = 0;
+	int ret = -EINVAL;
 	int irq = platform_get_irq(pdev, 0);
 	u8 rd_reg;
 
 	if (irq <= 0)
-		return -EINVAL;
+		goto out1;
-
-	rtc = rtc_device_register(pdev->name,
-				  &pdev->dev, &twl_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtc)) {
-		ret = PTR_ERR(rtc);
-		dev_err(&pdev->dev, "can't register RTC device, err %ld\n",
-			PTR_ERR(rtc));
-		goto out0;
-
-	}
-
-	platform_set_drvdata(pdev, rtc);
 
 	ret = twl_rtc_read_u8(&rd_reg, REG_RTC_STATUS_REG);
 	if (ret < 0)
@@ -462,14 +442,6 @@ static int __devinit twl_rtc_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto out1;
 
-	ret = request_irq(irq, twl_rtc_interrupt,
-				IRQF_TRIGGER_RISING,
-				dev_name(&rtc->dev), rtc);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "IRQ is not free.\n");
-		goto out1;
-	}
-
 	if (twl_class_is_6030()) {
 		twl6030_interrupt_unmask(TWL6030_RTC_INT_MASK,
 			REG_INT_MSK_LINE_A);
@@ -480,28 +452,44 @@ static int __devinit twl_rtc_probe(struct platform_device *pdev)
 	/* Check RTC module status, Enable if it is off */
 	ret = twl_rtc_read_u8(&rd_reg, REG_RTC_CTRL_REG);
 	if (ret < 0)
-		goto out2;
+		goto out1;
 
 	if (!(rd_reg & BIT_RTC_CTRL_REG_STOP_RTC_M)) {
 		dev_info(&pdev->dev, "Enabling TWL-RTC.\n");
 		rd_reg = BIT_RTC_CTRL_REG_STOP_RTC_M;
 		ret = twl_rtc_write_u8(rd_reg, REG_RTC_CTRL_REG);
 		if (ret < 0)
-			goto out2;
+			goto out1;
 	}
 
 	/* init cached IRQ enable bits */
 	ret = twl_rtc_read_u8(&rtc_irq_bits, REG_RTC_INTERRUPTS_REG);
 	if (ret < 0)
-		goto out2;
+		goto out1;
 
-	return ret;
+	rtc = rtc_device_register(pdev->name,
+				  &pdev->dev, &twl_rtc_ops, THIS_MODULE);
+	if (IS_ERR(rtc)) {
+		ret = PTR_ERR(rtc);
+		dev_err(&pdev->dev, "can't register RTC device, err %ld\n",
+			PTR_ERR(rtc));
+		goto out1;
+	}
+
+	ret = request_threaded_irq(irq, NULL, twl_rtc_interrupt,
+				   IRQF_TRIGGER_RISING,
+				   dev_name(&rtc->dev), rtc);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "IRQ is not free.\n");
+		goto out2;
+	}
+
+	platform_set_drvdata(pdev, rtc);
+	return 0;
 
 out2:
-	free_irq(irq, rtc);
-out1:
 	rtc_device_unregister(rtc);
-out0:
+out1:
 	return ret;
 }
 

drivers/scsi/qla4xxx/Kconfig

@@ -1,6 +1,6 @@
 config SCSI_QLA_ISCSI
 	tristate "QLogic ISP4XXX and ISP82XX host adapter family support"
-	depends on PCI && SCSI
+	depends on PCI && SCSI && NET
 	select SCSI_ISCSI_ATTRS
 	---help---
 	This driver supports the QLogic 40xx (ISP4XXX) and 8022 (ISP82XX)

drivers/video/backlight/backlight.c

@@ -19,7 +19,7 @@
 #include <asm/backlight.h>
 #endif
 
-static const char const *backlight_types[] = {
+static const char *const backlight_types[] = {
 	[BACKLIGHT_RAW] = "raw",
 	[BACKLIGHT_PLATFORM] = "platform",
 	[BACKLIGHT_FIRMWARE] = "firmware",

fs/9p/v9fs_vfs.h

@@ -54,9 +54,9 @@ extern struct kmem_cache *v9fs_inode_cache;
 
 struct inode *v9fs_alloc_inode(struct super_block *sb);
 void v9fs_destroy_inode(struct inode *inode);
-struct inode *v9fs_get_inode(struct super_block *sb, int mode);
+struct inode *v9fs_get_inode(struct super_block *sb, int mode, dev_t);
 int v9fs_init_inode(struct v9fs_session_info *v9ses,
-		    struct inode *inode, int mode);
+		    struct inode *inode, int mode, dev_t);
 void v9fs_evict_inode(struct inode *inode);
 ino_t v9fs_qid2ino(struct p9_qid *qid);
 void v9fs_stat2inode(struct p9_wstat *, struct inode *, struct super_block *);
@@ -83,4 +83,6 @@ static inline void v9fs_invalidate_inode_attr(struct inode *inode)
 	v9inode->cache_validity |= V9FS_INO_INVALID_ATTR;
 	return;
 }
+
+int v9fs_open_to_dotl_flags(int flags);
 #endif

fs/9p/vfs_file.c

@@ -65,7 +65,7 @@ int v9fs_file_open(struct inode *inode, struct file *file)
 	v9inode = V9FS_I(inode);
 	v9ses = v9fs_inode2v9ses(inode);
 	if (v9fs_proto_dotl(v9ses))
-		omode = file->f_flags;
+		omode = v9fs_open_to_dotl_flags(file->f_flags);
 	else
 		omode = v9fs_uflags2omode(file->f_flags,
 					v9fs_proto_dotu(v9ses));
@@ -169,7 +169,18 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
 
 	/* convert posix lock to p9 tlock args */
 	memset(&flock, 0, sizeof(flock));
-	flock.type = fl->fl_type;
+	/* map the lock type */
+	switch (fl->fl_type) {
+	case F_RDLCK:
+		flock.type = P9_LOCK_TYPE_RDLCK;
+		break;
+	case F_WRLCK:
+		flock.type = P9_LOCK_TYPE_WRLCK;
+		break;
+	case F_UNLCK:
+		flock.type = P9_LOCK_TYPE_UNLCK;
+		break;
+	}
 	flock.start = fl->fl_start;
 	if (fl->fl_end == OFFSET_MAX)
 		flock.length = 0;
@@ -245,7 +256,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
 
 	/* convert posix lock to p9 tgetlock args */
 	memset(&glock, 0, sizeof(glock));
-	glock.type = fl->fl_type;
+	glock.type  = P9_LOCK_TYPE_UNLCK;
 	glock.start = fl->fl_start;
 	if (fl->fl_end == OFFSET_MAX)
 		glock.length = 0;
@@ -257,17 +268,26 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
 	res = p9_client_getlock_dotl(fid, &glock);
 	if (res < 0)
 		return res;
-	if (glock.type != F_UNLCK) {
+	/* map 9p lock type to os lock type */
-		fl->fl_type = glock.type;
+	switch (glock.type) {
+	case P9_LOCK_TYPE_RDLCK:
+		fl->fl_type = F_RDLCK;
+		break;
+	case P9_LOCK_TYPE_WRLCK:
+		fl->fl_type = F_WRLCK;
+		break;
+	case P9_LOCK_TYPE_UNLCK:
+		fl->fl_type = F_UNLCK;
+		break;
+	}
+	if (glock.type != P9_LOCK_TYPE_UNLCK) {
 		fl->fl_start = glock.start;
 		if (glock.length == 0)
 			fl->fl_end = OFFSET_MAX;
 		else
 			fl->fl_end = glock.start + glock.length - 1;
 		fl->fl_pid = glock.proc_id;
-	} else
+	}
-		fl->fl_type = F_UNLCK;
-
 	return res;
 }
 

fs/9p/vfs_inode.c

@@ -95,15 +95,18 @@ static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
 /**
  * p9mode2unixmode- convert plan9 mode bits to unix mode bits
  * @v9ses: v9fs session information
- * @mode: mode to convert
+ * @stat: p9_wstat from which mode need to be derived
+ * @rdev: major number, minor number in case of device files.
  *
  */
-
+static int p9mode2unixmode(struct v9fs_session_info *v9ses,
-static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode)
+			   struct p9_wstat *stat, dev_t *rdev)
 {
 	int res;
+	int mode = stat->mode;
 
-	res = mode & 0777;
+	res = mode & S_IALLUGO;
+	*rdev = 0;
 
 	if ((mode & P9_DMDIR) == P9_DMDIR)
 		res |= S_IFDIR;
@@ -116,9 +119,26 @@ static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode)
 		 && (v9ses->nodev == 0))
 		res |= S_IFIFO;
 	else if ((mode & P9_DMDEVICE) && (v9fs_proto_dotu(v9ses))
-		 && (v9ses->nodev == 0))
+		 && (v9ses->nodev == 0)) {
+		char type = 0, ext[32];
+		int major = -1, minor = -1;
+
+		strncpy(ext, stat->extension, sizeof(ext));
+		sscanf(ext, "%c %u %u", &type, &major, &minor);
+		switch (type) {
+		case 'c':
+			res |= S_IFCHR;
+			break;
+		case 'b':
 			res |= S_IFBLK;
-	else
+			break;
+		default:
+			P9_DPRINTK(P9_DEBUG_ERROR,
+				"Unknown special type %c %s\n", type,
+				stat->extension);
+		};
+		*rdev = MKDEV(major, minor);
+	} else
 		res |= S_IFREG;
 
 	if (v9fs_proto_dotu(v9ses)) {
@@ -131,7 +151,6 @@ static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode)
 		if ((mode & P9_DMSETVTX) == P9_DMSETVTX)
 			res |= S_ISVTX;
 	}
-
 	return res;
 }
 
@@ -242,13 +261,13 @@ void v9fs_destroy_inode(struct inode *inode)
 }
 
 int v9fs_init_inode(struct v9fs_session_info *v9ses,
-		    struct inode *inode, int mode)
+		    struct inode *inode, int mode, dev_t rdev)
 {
 	int err = 0;
 
 	inode_init_owner(inode, NULL, mode);
 	inode->i_blocks = 0;
-	inode->i_rdev = 0;
+	inode->i_rdev = rdev;
 	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
 	inode->i_mapping->a_ops = &v9fs_addr_operations;
 
@@ -335,7 +354,7 @@ error:
  *
  */
 
-struct inode *v9fs_get_inode(struct super_block *sb, int mode)
+struct inode *v9fs_get_inode(struct super_block *sb, int mode, dev_t rdev)
 {
 	int err;
 	struct inode *inode;
@@ -348,7 +367,7 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
 		P9_EPRINTK(KERN_WARNING, "Problem allocating inode\n");
 		return ERR_PTR(-ENOMEM);
 	}
-	err = v9fs_init_inode(v9ses, inode, mode);
+	err = v9fs_init_inode(v9ses, inode, mode, rdev);
 	if (err) {
 		iput(inode);
 		return ERR_PTR(err);
@@ -435,11 +454,12 @@ void v9fs_evict_inode(struct inode *inode)
 static int v9fs_test_inode(struct inode *inode, void *data)
 {
 	int umode;
+	dev_t rdev;
 	struct v9fs_inode *v9inode = V9FS_I(inode);
 	struct p9_wstat *st = (struct p9_wstat *)data;
 	struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
 
-	umode = p9mode2unixmode(v9ses, st->mode);
+	umode = p9mode2unixmode(v9ses, st, &rdev);
 	/* don't match inode of different type */
 	if ((inode->i_mode & S_IFMT) != (umode & S_IFMT))
 		return 0;
@@ -473,6 +493,7 @@ static struct inode *v9fs_qid_iget(struct super_block *sb,
 				   struct p9_wstat *st,
 				   int new)
 {
+	dev_t rdev;
 	int retval, umode;
 	unsigned long i_ino;
 	struct inode *inode;
@@ -496,8 +517,8 @@ static struct inode *v9fs_qid_iget(struct super_block *sb,
 	 * later.
 	 */
 	inode->i_ino = i_ino;
-	umode = p9mode2unixmode(v9ses, st->mode);
+	umode = p9mode2unixmode(v9ses, st, &rdev);
-	retval = v9fs_init_inode(v9ses, inode, umode);
+	retval = v9fs_init_inode(v9ses, inode, umode, rdev);
 	if (retval)
 		goto error;
 
@@ -531,6 +552,19 @@ v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
 	return inode;
 }
 
+/**
+ * v9fs_at_to_dotl_flags- convert Linux specific AT flags to
+ * plan 9 AT flag.
+ * @flags: flags to convert
+ */
+static int v9fs_at_to_dotl_flags(int flags)
+{
+	int rflags = 0;
+	if (flags & AT_REMOVEDIR)
+		rflags |= P9_DOTL_AT_REMOVEDIR;
+	return rflags;
+}
+
 /**
  * v9fs_remove - helper function to remove files and directories
  * @dir: directory inode that is being deleted
@@ -558,7 +592,8 @@ static int v9fs_remove(struct inode *dir, struct dentry *dentry, int flags)
 		return retval;
 	}
 	if (v9fs_proto_dotl(v9ses))
-		retval = p9_client_unlinkat(dfid, dentry->d_name.name, flags);
+		retval = p9_client_unlinkat(dfid, dentry->d_name.name,
+					    v9fs_at_to_dotl_flags(flags));
 	if (retval == -EOPNOTSUPP) {
 		/* Try the one based on path */
 		v9fid = v9fs_fid_clone(dentry);
@@ -645,13 +680,11 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
 		P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
 		goto error;
 	}
-	d_instantiate(dentry, inode);
 	err = v9fs_fid_add(dentry, fid);
 	if (err < 0)
 		goto error;
-
+	d_instantiate(dentry, inode);
 	return ofid;
-
 error:
 	if (ofid)
 		p9_client_clunk(ofid);
@@ -792,6 +825,7 @@ static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
 				      struct nameidata *nameidata)
 {
+	struct dentry *res;
 	struct super_block *sb;
 	struct v9fs_session_info *v9ses;
 	struct p9_fid *dfid, *fid;
@@ -823,22 +857,35 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
 
 		return ERR_PTR(result);
 	}
-
+	/*
+	 * Make sure we don't use a wrong inode due to parallel
+	 * unlink. For cached mode create calls request for new
+	 * inode. But with cache disabled, lookup should do this.
+	 */
+	if (v9ses->cache)
 		inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
+	else
+		inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
 	if (IS_ERR(inode)) {
 		result = PTR_ERR(inode);
 		inode = NULL;
 		goto error;
 	}
-
 	result = v9fs_fid_add(dentry, fid);
 	if (result < 0)
 		goto error_iput;
-
 inst_out:
-	d_add(dentry, inode);
+	/*
-	return NULL;
+	 * If we had a rename on the server and a parallel lookup
-
+	 * for the new name, then make sure we instantiate with
+	 * the new name. ie look up for a/b, while on server somebody
+	 * moved b under k and client parallely did a lookup for
+	 * k/b.
+	 */
+	res = d_materialise_unique(dentry, inode);
+	if (!IS_ERR(res))
+		return res;
+	result = PTR_ERR(res);
 error_iput:
 	iput(inode);
 error:
@@ -1086,6 +1133,7 @@ void
 v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
 	struct super_block *sb)
 {
+	mode_t mode;
 	char ext[32];
 	char tag_name[14];
 	unsigned int i_nlink;
@@ -1121,31 +1169,9 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
 				inode->i_nlink = i_nlink;
 		}
 	}
-	inode->i_mode = p9mode2unixmode(v9ses, stat->mode);
+	mode = stat->mode & S_IALLUGO;
-	if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode))) {
+	mode |= inode->i_mode & ~S_IALLUGO;
-		char type = 0;
+	inode->i_mode = mode;
-		int major = -1;
-		int minor = -1;
-
-		strncpy(ext, stat->extension, sizeof(ext));
-		sscanf(ext, "%c %u %u", &type, &major, &minor);
-		switch (type) {
-		case 'c':
-			inode->i_mode &= ~S_IFBLK;
-			inode->i_mode |= S_IFCHR;
-			break;
-		case 'b':
-			break;
-		default:
-			P9_DPRINTK(P9_DEBUG_ERROR,
-				"Unknown special type %c %s\n", type,
-				stat->extension);
-		};
-		inode->i_rdev = MKDEV(major, minor);
-		init_special_inode(inode, inode->i_mode, inode->i_rdev);
-	} else
-		inode->i_rdev = 0;
-
 	i_size_write(inode, stat->length);
 
 	/* not real number of blocks, but 512 byte ones ... */
@@ -1411,6 +1437,8 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
 
 int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode)
 {
+	int umode;
+	dev_t rdev;
 	loff_t i_size;
 	struct p9_wstat *st;
 	struct v9fs_session_info *v9ses;
@@ -1419,6 +1447,12 @@ int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode)
 	st = p9_client_stat(fid);
 	if (IS_ERR(st))
 		return PTR_ERR(st);
+	/*
+	 * Don't update inode if the file type is different
+	 */
+	umode = p9mode2unixmode(v9ses, st, &rdev);
+	if ((inode->i_mode & S_IFMT) != (umode & S_IFMT))
+		goto out;
 
 	spin_lock(&inode->i_lock);
 	/*
@@ -1430,6 +1464,7 @@ int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode)
 	if (v9ses->cache)
 		inode->i_size = i_size;
 	spin_unlock(&inode->i_lock);
+out:
 	p9stat_free(st);
 	kfree(st);
 	return 0;

fs/9p/vfs_inode_dotl.c

@@ -153,7 +153,8 @@ static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
 	 * later.
 	 */
 	inode->i_ino = i_ino;
-	retval = v9fs_init_inode(v9ses, inode, st->st_mode);
+	retval = v9fs_init_inode(v9ses, inode,
+				 st->st_mode, new_decode_dev(st->st_rdev));
 	if (retval)
 		goto error;
 
@@ -190,6 +191,58 @@ v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid,
 	return inode;
 }
 
+struct dotl_openflag_map {
+	int open_flag;
+	int dotl_flag;
+};
+
+static int v9fs_mapped_dotl_flags(int flags)
+{
+	int i;
+	int rflags = 0;
+	struct dotl_openflag_map dotl_oflag_map[] = {
+		{ O_CREAT,	P9_DOTL_CREATE },
+		{ O_EXCL,	P9_DOTL_EXCL },
+		{ O_NOCTTY,	P9_DOTL_NOCTTY },
+		{ O_TRUNC,	P9_DOTL_TRUNC },
+		{ O_APPEND,	P9_DOTL_APPEND },
+		{ O_NONBLOCK,	P9_DOTL_NONBLOCK },
+		{ O_DSYNC,	P9_DOTL_DSYNC },
+		{ FASYNC,	P9_DOTL_FASYNC },
+		{ O_DIRECT,	P9_DOTL_DIRECT },
+		{ O_LARGEFILE,	P9_DOTL_LARGEFILE },
+		{ O_DIRECTORY,	P9_DOTL_DIRECTORY },
+		{ O_NOFOLLOW,	P9_DOTL_NOFOLLOW },
+		{ O_NOATIME,	P9_DOTL_NOATIME },
+		{ O_CLOEXEC,	P9_DOTL_CLOEXEC },
+		{ O_SYNC,	P9_DOTL_SYNC},
+	};
+	for (i = 0; i < ARRAY_SIZE(dotl_oflag_map); i++) {
+		if (flags & dotl_oflag_map[i].open_flag)
+			rflags |= dotl_oflag_map[i].dotl_flag;
+	}
+	return rflags;
+}
+
+/**
+ * v9fs_open_to_dotl_flags- convert Linux specific open flags to
+ * plan 9 open flag.
+ * @flags: flags to convert
+ */
+int v9fs_open_to_dotl_flags(int flags)
+{
+	int rflags = 0;
+
+	/*
+	 * We have same bits for P9_DOTL_READONLY, P9_DOTL_WRONLY
+	 * and P9_DOTL_NOACCESS
+	 */
+	rflags |= flags & O_ACCMODE;
+	rflags |= v9fs_mapped_dotl_flags(flags);
+
+	return rflags;
+}
+
 /**
  * v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol.
  * @dir: directory inode that is being created
@@ -258,7 +311,8 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
 			   "Failed to get acl values in creat %d\n", err);
 		goto error;
 	}
-	err = p9_client_create_dotl(ofid, name, flags, mode, gid, &qid);
+	err = p9_client_create_dotl(ofid, name, v9fs_open_to_dotl_flags(flags),
+				    mode, gid, &qid);
 	if (err < 0) {
 		P9_DPRINTK(P9_DEBUG_VFS,
 				"p9_client_open_dotl failed in creat %d\n",
@@ -281,10 +335,10 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
 		P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
 		goto error;
 	}
-	d_instantiate(dentry, inode);
 	err = v9fs_fid_add(dentry, fid);
 	if (err < 0)
 		goto error;
+	d_instantiate(dentry, inode);
 
 	/* Now set the ACL based on the default value */
 	v9fs_set_create_acl(dentry, &dacl, &pacl);
@@ -403,10 +457,10 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
 				err);
 			goto error;
 		}
-		d_instantiate(dentry, inode);
 		err = v9fs_fid_add(dentry, fid);
 		if (err < 0)
 			goto error;
+		d_instantiate(dentry, inode);
 		fid = NULL;
 	} else {
 		/*
@@ -414,7 +468,7 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
 		 * inode with stat. We need to get an inode
 		 * so that we can set the acl with dentry
 		 */
-		inode = v9fs_get_inode(dir->i_sb, mode);
+		inode = v9fs_get_inode(dir->i_sb, mode, 0);
 		if (IS_ERR(inode)) {
 			err = PTR_ERR(inode);
 			goto error;
@@ -540,6 +594,7 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
 void
 v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
 {
+	mode_t mode;
 	struct v9fs_inode *v9inode = V9FS_I(inode);
 
 	if ((stat->st_result_mask & P9_STATS_BASIC) == P9_STATS_BASIC) {
@@ -552,11 +607,10 @@ v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
 		inode->i_uid = stat->st_uid;
 		inode->i_gid = stat->st_gid;
 		inode->i_nlink = stat->st_nlink;
-		inode->i_mode = stat->st_mode;
-		inode->i_rdev = new_decode_dev(stat->st_rdev);
 
-		if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode)))
+		mode = stat->st_mode & S_IALLUGO;
-			init_special_inode(inode, inode->i_mode, inode->i_rdev);
+		mode |= inode->i_mode & ~S_IALLUGO;
+		inode->i_mode = mode;
 
 		i_size_write(inode, stat->st_size);
 		inode->i_blocks = stat->st_blocks;
@@ -657,14 +711,14 @@ v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
 					err);
 			goto error;
 		}
-		d_instantiate(dentry, inode);
 		err = v9fs_fid_add(dentry, fid);
 		if (err < 0)
 			goto error;
+		d_instantiate(dentry, inode);
 		fid = NULL;
 	} else {
 		/* Not in cached mode. No need to populate inode with stat */
-		inode = v9fs_get_inode(dir->i_sb, S_IFLNK);
+		inode = v9fs_get_inode(dir->i_sb, S_IFLNK, 0);
 		if (IS_ERR(inode)) {
 			err = PTR_ERR(inode);
 			goto error;
@@ -810,17 +864,17 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int omode,
 				err);
 			goto error;
 		}
-		d_instantiate(dentry, inode);
 		err = v9fs_fid_add(dentry, fid);
 		if (err < 0)
 			goto error;
+		d_instantiate(dentry, inode);
 		fid = NULL;
 	} else {
 		/*
 		 * Not in cached mode. No need to populate inode with stat.
 		 * socket syscall returns a fd, so we need instantiate
 		 */
-		inode = v9fs_get_inode(dir->i_sb, mode);
+		inode = v9fs_get_inode(dir->i_sb, mode, rdev);
 		if (IS_ERR(inode)) {
 			err = PTR_ERR(inode);
 			goto error;
@@ -886,6 +940,11 @@ int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode)
 	st = p9_client_getattr_dotl(fid, P9_STATS_ALL);
 	if (IS_ERR(st))
 		return PTR_ERR(st);
+	/*
+	 * Don't update inode if the file type is different
+	 */
+	if ((inode->i_mode & S_IFMT) != (st->st_mode & S_IFMT))
+		goto out;
 
 	spin_lock(&inode->i_lock);
 	/*
@@ -897,6 +956,7 @@ int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode)
 	if (v9ses->cache)
 		inode->i_size = i_size;
 	spin_unlock(&inode->i_lock);
+out:
 	kfree(st);
 	return 0;
 }

fs/9p/vfs_super.c

@@ -149,7 +149,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
 	else
 		sb->s_d_op = &v9fs_dentry_operations;
 
-	inode = v9fs_get_inode(sb, S_IFDIR | mode);
+	inode = v9fs_get_inode(sb, S_IFDIR | mode, 0);
 	if (IS_ERR(inode)) {
 		retval = PTR_ERR(inode);
 		goto release_sb;

fs/block_dev.c

@@ -1429,6 +1429,11 @@ static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part)
 		WARN_ON_ONCE(bdev->bd_holders);
 		sync_blockdev(bdev);
 		kill_bdev(bdev);
+		/* ->release can cause the old bdi to disappear,
+		 * so must switch it out first
+		 */
+		bdev_inode_switch_bdi(bdev->bd_inode,
+					&default_backing_dev_info);
 	}
 	if (bdev->bd_contains == bdev) {
 		if (disk->fops->release)
@@ -1442,8 +1447,6 @@ static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part)
 		disk_put_part(bdev->bd_part);
 		bdev->bd_part = NULL;
 		bdev->bd_disk = NULL;
-		bdev_inode_switch_bdi(bdev->bd_inode,
-					&default_backing_dev_info);
 		if (bdev != bdev->bd_contains)
 			victim = bdev->bd_contains;
 		bdev->bd_contains = NULL;

fs/btrfs/btrfs_inode.h

@@ -176,7 +176,11 @@ static inline u64 btrfs_ino(struct inode *inode)
 {
 	u64 ino = BTRFS_I(inode)->location.objectid;
 
-	if (ino <= BTRFS_FIRST_FREE_OBJECTID)
+	/*
+	 * !ino: btree_inode
+	 * type == BTRFS_ROOT_ITEM_KEY: subvol dir
+	 */
+	if (!ino || BTRFS_I(inode)->location.type == BTRFS_ROOT_ITEM_KEY)
 		ino = inode->i_ino;
 	return ino;
 }

fs/btrfs/file-item.c

@@ -183,8 +183,10 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
 	 * read from the commit root and sidestep a nasty deadlock
 	 * between reading the free space cache and updating the csum tree.
 	 */
-	if (btrfs_is_free_space_inode(root, inode))
+	if (btrfs_is_free_space_inode(root, inode)) {
 		path->search_commit_root = 1;
+		path->skip_locking = 1;
+	}
 
 	disk_bytenr = (u64)bio->bi_sector << 9;
 	if (dio)

fs/btrfs/file.c

@@ -1075,12 +1075,6 @@ static noinline int prepare_pages(struct btrfs_root *root, struct file *file,
 	start_pos = pos & ~((u64)root->sectorsize - 1);
 	last_pos = ((u64)index + num_pages) << PAGE_CACHE_SHIFT;
 
-	if (start_pos > inode->i_size) {
-		err = btrfs_cont_expand(inode, i_size_read(inode), start_pos);
-		if (err)
-			return err;
-	}
-
 again:
 	for (i = 0; i < num_pages; i++) {
 		pages[i] = find_or_create_page(inode->i_mapping, index + i,
@@ -1338,6 +1332,7 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
 	struct inode *inode = fdentry(file)->d_inode;
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	loff_t *ppos = &iocb->ki_pos;
+	u64 start_pos;
 	ssize_t num_written = 0;
 	ssize_t err = 0;
 	size_t count, ocount;
@@ -1386,6 +1381,15 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
 	file_update_time(file);
 	BTRFS_I(inode)->sequence++;
 
+	start_pos = round_down(pos, root->sectorsize);
+	if (start_pos > i_size_read(inode)) {
+		err = btrfs_cont_expand(inode, i_size_read(inode), start_pos);
+		if (err) {
+			mutex_unlock(&inode->i_mutex);
+			goto out;
+		}
+	}
+
 	if (unlikely(file->f_flags & O_DIRECT)) {
 		num_written = __btrfs_direct_write(iocb, iov, nr_segs,
 						   pos, ppos, count, ocount);

fs/btrfs/free-space-cache.c

@@ -190,9 +190,11 @@ int btrfs_truncate_free_space_cache(struct btrfs_root *root,
 				    struct btrfs_path *path,
 				    struct inode *inode)
 {
+	struct btrfs_block_rsv *rsv;
 	loff_t oldsize;
 	int ret = 0;
 
+	rsv = trans->block_rsv;
 	trans->block_rsv = root->orphan_block_rsv;
 	ret = btrfs_block_rsv_check(trans, root,
 				    root->orphan_block_rsv,
@@ -210,6 +212,8 @@ int btrfs_truncate_free_space_cache(struct btrfs_root *root,
 	 */
 	ret = btrfs_truncate_inode_items(trans, root, inode,
 					 0, BTRFS_EXTENT_DATA_KEY);
+
+	trans->block_rsv = rsv;
 	if (ret) {
 		WARN_ON(1);
 		return ret;

fs/btrfs/inode.c

@@ -1786,7 +1786,7 @@ static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end)
 			  &ordered_extent->list);
 
 	ret = btrfs_ordered_update_i_size(inode, 0, ordered_extent);
-	if (!ret) {
+	if (!ret || !test_bit(BTRFS_ORDERED_PREALLOC, &ordered_extent->flags)) {
 		ret = btrfs_update_inode(trans, root, inode);
 		BUG_ON(ret);
 	}
@@ -3510,15 +3510,19 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
 			err = btrfs_drop_extents(trans, inode, cur_offset,
 						 cur_offset + hole_size,
 						 &hint_byte, 1);
-			if (err)
+			if (err) {
+				btrfs_end_transaction(trans, root);
 				break;
+			}
 
 			err = btrfs_insert_file_extent(trans, root,
 					btrfs_ino(inode), cur_offset, 0,
 					0, hole_size, 0, hole_size,
 					0, 0, 0);
-			if (err)
+			if (err) {
+				btrfs_end_transaction(trans, root);
 				break;
+			}
 
 			btrfs_drop_extent_cache(inode, hole_start,
 					last_byte - 1, 0);
@@ -3952,7 +3956,6 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
 			 struct btrfs_root *root, int *new)
 {
 	struct inode *inode;
-	int bad_inode = 0;
 
 	inode = btrfs_iget_locked(s, location->objectid, root);
 	if (!inode)
@@ -3968,14 +3971,11 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
 			if (new)
 				*new = 1;
 		} else {
-			bad_inode = 1;
+			unlock_new_inode(inode);
-		}
-	}
-
-	if (bad_inode) {
 			iput(inode);
 			inode = ERR_PTR(-ESTALE);
 		}
+	}
 
 	return inode;
 }
@@ -5823,7 +5823,7 @@ again:
 
 	add_pending_csums(trans, inode, ordered->file_offset, &ordered->list);
 	ret = btrfs_ordered_update_i_size(inode, 0, ordered);
-	if (!ret)
+	if (!ret || !test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags))
 		btrfs_update_inode(trans, root, inode);
 	ret = 0;
 out_unlock:

fs/btrfs/ioctl.c

@@ -2220,6 +2220,12 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
 	    !IS_ALIGNED(destoff, bs))
 		goto out_unlock;
 
+	if (destoff > inode->i_size) {
+		ret = btrfs_cont_expand(inode, inode->i_size, destoff);
+		if (ret)
+			goto out_unlock;
+	}
+
 	/* do any pending delalloc/csum calc on src, one way or
 	   another, and lock file content */
 	while (1) {
@@ -2325,14 +2331,21 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
 
 			if (type == BTRFS_FILE_EXTENT_REG ||
 			    type == BTRFS_FILE_EXTENT_PREALLOC) {
+				/*
+				 *    a  | --- range to clone ---|  b
+				 * | ------------- extent ------------- |
+				 */
+
+				/* substract range b */
+				if (key.offset + datal > off + len)
+					datal = off + len - key.offset;
+
+				/* substract range a */
 				if (off > key.offset) {
 					datao += off - key.offset;
 					datal -= off - key.offset;
 				}
 
-				if (key.offset + datal > off + len)
-					datal = off + len - key.offset;
-
 				ret = btrfs_drop_extents(trans, inode,
 							 new_key.offset,
 							 new_key.offset + datal,

fs/btrfs/transaction.c

@@ -884,6 +884,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
 	struct btrfs_root *tree_root = fs_info->tree_root;
 	struct btrfs_root *root = pending->root;
 	struct btrfs_root *parent_root;
+	struct btrfs_block_rsv *rsv;
 	struct inode *parent_inode;
 	struct dentry *parent;
 	struct dentry *dentry;
@@ -895,6 +896,8 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
 	u64 objectid;
 	u64 root_flags;
 
+	rsv = trans->block_rsv;
+
 	new_root_item = kmalloc(sizeof(*new_root_item), GFP_NOFS);
 	if (!new_root_item) {
 		pending->error = -ENOMEM;
@@ -1002,6 +1005,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
 	btrfs_orphan_post_snapshot(trans, pending);
 fail:
 	kfree(new_root_item);
+	trans->block_rsv = rsv;
 	btrfs_block_rsv_release(root, &pending->block_rsv, (u64)-1);
 	return 0;
 }

fs/btrfs/xattr.c

@@ -116,6 +116,12 @@ static int do_setxattr(struct btrfs_trans_handle *trans,
 		if (ret)
 			goto out;
 		btrfs_release_path(path);
+
+		/*
+		 * remove the attribute
+		 */
+		if (!value)
+			goto out;
 	}
 
 again:
@@ -158,6 +164,9 @@ out:
 	return ret;
 }
 
+/*
+ * @value: "" makes the attribute to empty, NULL removes it
+ */
 int __btrfs_setxattr(struct btrfs_trans_handle *trans,
 		     struct inode *inode, const char *name,
 		     const void *value, size_t size, int flags)

fs/ceph/mds_client.c

@@ -1595,7 +1595,7 @@ static int set_request_path_attr(struct inode *rinode, struct dentry *rdentry,
 		r = build_dentry_path(rdentry, ppath, pathlen, ino, freepath);
 		dout(" dentry %p %llx/%.*s\n", rdentry, *ino, *pathlen,
 		     *ppath);
-	} else if (rpath) {
+	} else if (rpath || rino) {
 		*ino = rino;
 		*ppath = rpath;
 		*pathlen = strlen(rpath);

fs/ceph/super.c

@@ -813,8 +813,8 @@ static struct dentry *ceph_mount(struct file_system_type *fs_type,
 	fsc = create_fs_client(fsopt, opt);
 	if (IS_ERR(fsc)) {
 		res = ERR_CAST(fsc);
-		kfree(fsopt);
+		destroy_mount_options(fsopt);
-		kfree(opt);
+		ceph_destroy_options(opt);
 		goto out_final;
 	}
 

fs/fuse/dev.c

@@ -258,10 +258,14 @@ void fuse_queue_forget(struct fuse_conn *fc, struct fuse_forget_link *forget,
 	forget->forget_one.nlookup = nlookup;
 
 	spin_lock(&fc->lock);
+	if (fc->connected) {
 		fc->forget_list_tail->next = forget;
 		fc->forget_list_tail = forget;
 		wake_up(&fc->waitq);
 		kill_fasync(&fc->fasync, SIGIO, POLL_IN);
+	} else {
+		kfree(forget);
+	}
 	spin_unlock(&fc->lock);
 }