Merge remote-tracking branch 'djwong/ocfs2-vfs-reflink-6' into for-linus

88 files changed, 756 insertions, 318 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 9669fc7c19df..74f4c662f776 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1436,13 +1436,6 @@ static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
 				"ahci: MRSM is on, fallback to single MSI\n");
 			pci_free_irq_vectors(pdev);
 		}
-
-		/*
-		 * -ENOSPC indicated we don't have enough vectors.  Don't bother
-		 * trying a single vectors for any other error:
-		 */
-		if (nvec < 0 && nvec != -ENOSPC)
-			return nvec;
 	}
 
 	/*
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 9cceb4a875a5..c4eb4ae9c3aa 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1088,7 +1088,7 @@ static void ata_gen_passthru_sense(struct ata_queued_cmd *qc)
 		desc[1] = tf->command; /* status */
 		desc[2] = tf->device;
 		desc[3] = tf->nsect;
-		desc[0] = 0;
+		desc[7] = 0;
 		if (tf->flags & ATA_TFLAG_LBA48)  {
 			desc[8] |= 0x80;
 			if (tf->hob_nsect)
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 04365b17ee67..5163c8f918cb 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1403,7 +1403,8 @@ static ssize_t hot_remove_store(struct class *class,
 	zram = idr_find(&zram_index_idr, dev_id);
 	if (zram) {
 		ret = zram_remove(zram);
-		idr_remove(&zram_index_idr, dev_id);
+		if (!ret)
+			idr_remove(&zram_index_idr, dev_id);
 	} else {
 		ret = -ENODEV;
 	}
diff --git a/drivers/clk/bcm/Kconfig b/drivers/clk/bcm/Kconfig
index f21e9b7afd1a..e3eed5a78404 100644
--- a/drivers/clk/bcm/Kconfig
+++ b/drivers/clk/bcm/Kconfig
@@ -20,7 +20,7 @@ config CLK_BCM_KONA
 
 config COMMON_CLK_IPROC
 	bool "Broadcom iProc clock support"
-	depends on ARCH_BCM_IPROC || COMPILE_TEST
+	depends on ARCH_BCM_IPROC || ARCH_BCM_63XX || COMPILE_TEST
 	depends on COMMON_CLK
 	default ARCH_BCM_IPROC
 	help
diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
index 4a82a49cff5e..fc75a335a7ce 100644
--- a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
+++ b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
@@ -143,7 +143,7 @@ static SUNXI_CCU_NKM_WITH_MUX_GATE_LOCK(pll_mipi_clk, "pll-mipi",
 					4, 2,	/* K */
 					0, 4,	/* M */
 					21, 0,	/* mux */
-					BIT(31),	/* gate */
+					BIT(31) | BIT(23) | BIT(22), /* gate */
 					BIT(28),	/* lock */
 					CLK_SET_RATE_UNGATE);
 
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
index 96b40ca57697..9bd1f78a0547 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c
@@ -131,7 +131,7 @@ static SUNXI_CCU_NKM_WITH_GATE_LOCK(pll_mipi_clk, "pll-mipi",
 				    8, 4,		/* N */
 				    4, 2,		/* K */
 				    0, 4,		/* M */
-				    BIT(31),		/* gate */
+				    BIT(31) | BIT(23) | BIT(22), /* gate */
 				    BIT(28),		/* lock */
 				    CLK_SET_RATE_UNGATE);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
index 02ca5dd978f6..6c343a933182 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
@@ -485,7 +485,6 @@ static int amdgpu_atpx_power_state(enum vga_switcheroo_client_id id,
  */
 static bool amdgpu_atpx_pci_probe_handle(struct pci_dev *pdev)
 {
-	struct pci_dev *parent_pdev = pci_upstream_bridge(pdev);
 	acpi_handle dhandle, atpx_handle;
 	acpi_status status;
 
@@ -500,7 +499,6 @@ static bool amdgpu_atpx_pci_probe_handle(struct pci_dev *pdev)
 	}
 	amdgpu_atpx_priv.dhandle = dhandle;
 	amdgpu_atpx_priv.atpx.handle = atpx_handle;
-	amdgpu_atpx_priv.bridge_pm_usable = parent_pdev && parent_pdev->bridge_d3;
 	return true;
 }
 
@@ -562,17 +560,25 @@ static bool amdgpu_atpx_detect(void)
 	struct pci_dev *pdev = NULL;
 	bool has_atpx = false;
 	int vga_count = 0;
+	bool d3_supported = false;
+	struct pci_dev *parent_pdev;
 
 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
 		vga_count++;
 
 		has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);
+
+		parent_pdev = pci_upstream_bridge(pdev);
+		d3_supported |= parent_pdev && parent_pdev->bridge_d3;
 	}
 
 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
 		vga_count++;
 
 		has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);
+
+		parent_pdev = pci_upstream_bridge(pdev);
+		d3_supported |= parent_pdev && parent_pdev->bridge_d3;
 	}
 
 	if (has_atpx && vga_count == 2) {
@@ -580,6 +586,7 @@ static bool amdgpu_atpx_detect(void)
 		printk(KERN_INFO "vga_switcheroo: detected switching method %s handle\n",
 		       acpi_method_name);
 		amdgpu_atpx_priv.atpx_detected = true;
+		amdgpu_atpx_priv.bridge_pm_usable = d3_supported;
 		amdgpu_atpx_init();
 		return true;
 	}
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
index 4ccc0b72324d..71bb2f8dc157 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
@@ -2214,6 +2214,7 @@ uint32_t polaris10_get_mac_definition(uint32_t value)
 int polaris10_process_firmware_header(struct pp_hwmgr *hwmgr)
 {
 	struct polaris10_smumgr *smu_data = (struct polaris10_smumgr *)(hwmgr->smumgr->backend);
+	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
 	uint32_t tmp;
 	int result;
 	bool error = false;
@@ -2233,8 +2234,10 @@ int polaris10_process_firmware_header(struct pp_hwmgr *hwmgr)
 			offsetof(SMU74_Firmware_Header, SoftRegisters),
 			&tmp, SMC_RAM_END);
 
-	if (!result)
+	if (!result) {
+		data->soft_regs_start = tmp;
 		smu_data->smu7_data.soft_regs_start = tmp;
+	}
 
 	error |= (0 != result);
 
diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
index fb6a418ce6be..e138fb51e8ce 100644
--- a/drivers/gpu/drm/arm/hdlcd_drv.c
+++ b/drivers/gpu/drm/arm/hdlcd_drv.c
@@ -375,7 +375,6 @@ static int hdlcd_drm_bind(struct device *dev)
 
 err_fbdev:
 	drm_kms_helper_poll_fini(drm);
-	drm_mode_config_cleanup(drm);
 	drm_vblank_cleanup(drm);
 err_vblank:
 	pm_runtime_disable(drm->dev);
@@ -387,6 +386,7 @@ err_unload:
 	drm_irq_uninstall(drm);
 	of_reserved_mem_device_release(drm->dev);
 err_free:
+	drm_mode_config_cleanup(drm);
 	dev_set_drvdata(dev, NULL);
 	drm_dev_unref(drm);
 
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 0ad2c47f808f..71c3473476c7 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -254,10 +254,12 @@ static int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_
 		req->value = dev->mode_config.async_page_flip;
 		break;
 	case DRM_CAP_PAGE_FLIP_TARGET:
-		req->value = 1;
-		drm_for_each_crtc(crtc, dev) {
-			if (!crtc->funcs->page_flip_target)
-				req->value = 0;
+		if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+			req->value = 1;
+			drm_for_each_crtc(crtc, dev) {
+				if (!crtc->funcs->page_flip_target)
+					req->value = 0;
+			}
 		}
 		break;
 	case DRM_CAP_CURSOR_WIDTH:
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 91ab7e9d6d2e..00eb4814b913 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2268,7 +2268,7 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
 			page = shmem_read_mapping_page(mapping, i);
 			if (IS_ERR(page)) {
 				ret = PTR_ERR(page);
-				goto err_pages;
+				goto err_sg;
 			}
 		}
 #ifdef CONFIG_SWIOTLB
@@ -2311,8 +2311,9 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
 
 	return 0;
 
-err_pages:
+err_sg:
 	sg_mark_end(sg);
+err_pages:
 	for_each_sgt_page(page, sgt_iter, st)
 		put_page(page);
 	sg_free_table(st);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 81c11499bcf0..3cb70d73239b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12260,7 +12260,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 	intel_crtc->reset_count = i915_reset_count(&dev_priv->gpu_error);
 	if (i915_reset_in_progress_or_wedged(&dev_priv->gpu_error)) {
 		ret = -EIO;
-		goto cleanup;
+		goto unlock;
 	}
 
 	atomic_inc(&intel_crtc->unpin_work_count);
@@ -12352,6 +12352,7 @@ cleanup_unpin:
 	intel_unpin_fb_obj(fb, crtc->primary->state->rotation);
 cleanup_pending:
 	atomic_dec(&intel_crtc->unpin_work_count);
+unlock:
 	mutex_unlock(&dev->struct_mutex);
 cleanup:
 	crtc->primary->fb = old_fb;
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index 4129b12521a6..0ae13cd2adda 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -479,7 +479,6 @@ static int radeon_atpx_power_state(enum vga_switcheroo_client_id id,
  */
 static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev)
 {
-	struct pci_dev *parent_pdev = pci_upstream_bridge(pdev);
 	acpi_handle dhandle, atpx_handle;
 	acpi_status status;
 
@@ -493,7 +492,6 @@ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev)
 
 	radeon_atpx_priv.dhandle = dhandle;
 	radeon_atpx_priv.atpx.handle = atpx_handle;
-	radeon_atpx_priv.bridge_pm_usable = parent_pdev && parent_pdev->bridge_d3;
 	return true;
 }
 
@@ -555,11 +553,16 @@ static bool radeon_atpx_detect(void)
 	struct pci_dev *pdev = NULL;
 	bool has_atpx = false;
 	int vga_count = 0;
+	bool d3_supported = false;
+	struct pci_dev *parent_pdev;
 
 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
 		vga_count++;
 
 		has_atpx |= (radeon_atpx_pci_probe_handle(pdev) == true);
+
+		parent_pdev = pci_upstream_bridge(pdev);
+		d3_supported |= parent_pdev && parent_pdev->bridge_d3;
 	}
 
 	/* some newer PX laptops mark the dGPU as a non-VGA display device */
@@ -567,6 +570,9 @@ static bool radeon_atpx_detect(void)
 		vga_count++;
 
 		has_atpx |= (radeon_atpx_pci_probe_handle(pdev) == true);
+
+		parent_pdev = pci_upstream_bridge(pdev);
+		d3_supported |= parent_pdev && parent_pdev->bridge_d3;
 	}
 
 	if (has_atpx && vga_count == 2) {
@@ -574,6 +580,7 @@ static bool radeon_atpx_detect(void)
 		printk(KERN_INFO "vga_switcheroo: detected switching method %s handle\n",
 		       acpi_method_name);
 		rade