[gentoo-commits] proj/linux-patches:3.14 commit in: /

[Mike Pagano]

commit:     402317fd26761fffa2da5219860ed7be0e3984f9
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed Jul 27 19:15:44 2016 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed Jul 27 19:15:44 2016 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=402317fd

Linux patch 3.14.74

 0000_README              |    4 +
 1073_linux-3.14.74.patch | 1456 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 1460 insertions(+)

diff --git a/0000_README b/0000_README
index 7e32ae1..0e993b3 100644
--- a/0000_README
+++ b/0000_README
@@ -334,6 +334,10 @@ Patch:  1072_linux-3.14.73.patch
 From:   http://www.kernel.org
 Desc:   Linux 3.14.73
 
+Patch:  1073_linux-3.14.74.patch
+From:   http://www.kernel.org
+Desc:   Linux 3.14.74
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1073_linux-3.14.74.patch b/1073_linux-3.14.74.patch
new file mode 100644
index 0000000..1cc5a75
--- /dev/null
+++ b/1073_linux-3.14.74.patch
@@ -0,0 +1,1456 @@
+diff --git a/Documentation/scsi/scsi_eh.txt b/Documentation/scsi/scsi_eh.txt
+index a0c85110a07e..689ab9b9953a 100644
+--- a/Documentation/scsi/scsi_eh.txt
++++ b/Documentation/scsi/scsi_eh.txt
+@@ -263,19 +263,23 @@ scmd->allowed.
+ 
+  3. scmd recovered
+     ACTION: scsi_eh_finish_cmd() is invoked to EH-finish scmd
+-	- shost->host_failed--
+ 	- clear scmd->eh_eflags
+ 	- scsi_setup_cmd_retry()
+ 	- move from local eh_work_q to local eh_done_q
+     LOCKING: none
++    CONCURRENCY: at most one thread per separate eh_work_q to
++		 keep queue manipulation lockless
+ 
+  4. EH completes
+     ACTION: scsi_eh_flush_done_q() retries scmds or notifies upper
+-	    layer of failure.
++	    layer of failure. May be called concurrently but must have
++	    a no more than one thread per separate eh_work_q to
++	    manipulate the queue locklessly
+ 	- scmd is removed from eh_done_q and scmd->eh_entry is cleared
+ 	- if retry is necessary, scmd is requeued using
+           scsi_queue_insert()
+ 	- otherwise, scsi_finish_command() is invoked for scmd
++	- zero shost->host_failed
+     LOCKING: queue or finish function performs appropriate locking
+ 
+ 
+diff --git a/Makefile b/Makefile
+index 939dfae7bb5f..d2fb4dae6ecb 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 3
+ PATCHLEVEL = 14
+-SUBLEVEL = 73
++SUBLEVEL = 74
+ EXTRAVERSION =
+ NAME = Remembering Coco
+ 
+diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
+index 219ac88a9542..bed6c8fa54b5 100644
+--- a/arch/arm/include/asm/pgtable-2level.h
++++ b/arch/arm/include/asm/pgtable-2level.h
+@@ -163,6 +163,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
+ 
+ #define pmd_large(pmd)		(pmd_val(pmd) & 2)
+ #define pmd_bad(pmd)		(pmd_val(pmd) & 2)
++#define pmd_present(pmd)	(pmd_val(pmd))
+ 
+ #define copy_pmd(pmdpd,pmdps)		\
+ 	do {				\
+diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
+index 06e0bc0f8b00..ab7ee9205ca4 100644
+--- a/arch/arm/include/asm/pgtable-3level.h
++++ b/arch/arm/include/asm/pgtable-3level.h
+@@ -212,6 +212,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
+ 						: !!(pmd_val(pmd) & (val)))
+ #define pmd_isclear(pmd, val)	(!(pmd_val(pmd) & (val)))
+ 
++#define pmd_present(pmd)	(pmd_isset((pmd), L_PMD_SECT_VALID))
+ #define pmd_young(pmd)		(pmd_isset((pmd), PMD_SECT_AF))
+ 
+ #define __HAVE_ARCH_PMD_WRITE
+diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
+index 89dba131703b..9a9701815b57 100644
+--- a/arch/arm/include/asm/pgtable.h
++++ b/arch/arm/include/asm/pgtable.h
+@@ -182,7 +182,6 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+ #define pgd_offset_k(addr)	pgd_offset(&init_mm, addr)
+ 
+ #define pmd_none(pmd)		(!pmd_val(pmd))
+-#define pmd_present(pmd)	(pmd_val(pmd))
+ 
+ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
+ {
+diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
+index a995fce87791..3ff5b4921b76 100644
+--- a/arch/mips/include/asm/kvm_host.h
++++ b/arch/mips/include/asm/kvm_host.h
+@@ -342,6 +342,7 @@ struct kvm_mips_tlb {
+ #define KVM_MIPS_GUEST_TLB_SIZE     64
+ struct kvm_vcpu_arch {
+ 	void *host_ebase, *guest_ebase;
++	int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
+ 	unsigned long host_stack;
+ 	unsigned long host_gp;
+ 
+diff --git a/arch/mips/kvm/kvm_locore.S b/arch/mips/kvm/kvm_locore.S
+index ba5ce99c021d..d1fa2a57218b 100644
+--- a/arch/mips/kvm/kvm_locore.S
++++ b/arch/mips/kvm/kvm_locore.S
+@@ -229,6 +229,7 @@ FEXPORT(__kvm_mips_load_k0k1)
+ 
+ 	/* Jump to guest */
+ 	eret
++EXPORT(__kvm_mips_vcpu_run_end)
+ 
+ VECTOR(MIPSX(exception), unknown)
+ /*
+diff --git a/arch/mips/kvm/kvm_mips.c b/arch/mips/kvm/kvm_mips.c
+index 12d850b68763..2b2dd4ec03fb 100644
+--- a/arch/mips/kvm/kvm_mips.c
++++ b/arch/mips/kvm/kvm_mips.c
+@@ -348,6 +348,15 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
+ 	memcpy(gebase + offset, mips32_GuestException,
+ 	       mips32_GuestExceptionEnd - mips32_GuestException);
+ 
++#ifdef MODULE
++	offset += mips32_GuestExceptionEnd - mips32_GuestException;
++	memcpy(gebase + offset, (char *)__kvm_mips_vcpu_run,
++	       __kvm_mips_vcpu_run_end - (char *)__kvm_mips_vcpu_run);
++	vcpu->arch.vcpu_run = gebase + offset;
++#else
++	vcpu->arch.vcpu_run = __kvm_mips_vcpu_run;
++#endif
++
+ 	/* Invalidate the icache for these ranges */
+ 	mips32_SyncICache((unsigned long) gebase, ALIGN(size, PAGE_SIZE));
+ 
+@@ -431,7 +440,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
+ 
+ 	kvm_guest_enter();
+ 
+-	r = __kvm_mips_vcpu_run(run, vcpu);
++	r = vcpu->arch.vcpu_run(run, vcpu);
+ 
+ 	kvm_guest_exit();
+ 	local_irq_enable();
+diff --git a/arch/mips/kvm/kvm_mips_int.h b/arch/mips/kvm/kvm_mips_int.h
+index 20da7d29eede..bf41ea36210e 100644
+--- a/arch/mips/kvm/kvm_mips_int.h
++++ b/arch/mips/kvm/kvm_mips_int.h
+@@ -27,6 +27,8 @@
+ #define MIPS_EXC_MAX                12
+ /* XXXSL More to follow */
+ 
++extern char __kvm_mips_vcpu_run_end[];
++
+ #define C_TI        (_ULCAST_(1) << 30)
+ 
+ #define KVM_MIPS_IRQ_DELIVER_ALL_AT_ONCE (0)
+diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
+index 6e15abf30eb8..916b3a5db859 100644
+--- a/arch/powerpc/kernel/process.c
++++ b/arch/powerpc/kernel/process.c
+@@ -1237,6 +1237,16 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
+ 		current->thread.regs = regs - 1;
+ 	}
+ 
++#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
++	/*
++	 * Clear any transactional state, we're exec()ing. The cause is
++	 * not important as there will never be a recheckpoint so it's not
++	 * user visible.
++	 */
++	if (MSR_TM_SUSPENDED(mfmsr()))
++		tm_reclaim_current(0);
++#endif
++
+ 	memset(regs->gpr, 0, sizeof(regs->gpr));
+ 	regs->ctr = 0;
+ 	regs->link = 0;
+diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
+index de1ec54a2a57..a2082be599c8 100644
+--- a/arch/powerpc/platforms/pseries/iommu.c
++++ b/arch/powerpc/platforms/pseries/iommu.c
+@@ -826,7 +826,8 @@ machine_arch_initcall(pseries, find_existing_ddw_windows);
+ static int query_ddw(struct pci_dev *dev, const u32 *ddw_avail,
+ 			struct ddw_query_response *query)
+ {
+-	struct eeh_dev *edev;
++	struct device_node *dn;
++	struct pci_dn *pdn;
+ 	u32 cfg_addr;
+ 	u64 buid;
+ 	int ret;
+@@ -837,11 +838,10 @@ static int query_ddw(struct pci_dev *dev, const u32 *ddw_avail,
+ 	 * Retrieve them from the pci device, not the node with the
+ 	 * dma-window property
+ 	 */
+-	edev = pci_dev_to_eeh_dev(dev);
+-	cfg_addr = edev->config_addr;
+-	if (edev->pe_config_addr)
+-		cfg_addr = edev->pe_config_addr;
+-	buid = edev->phb->buid;
++	dn = pci_device_to_OF_node(dev);
++	pdn = PCI_DN(dn);
++	buid = pdn->phb->buid;
++	cfg_addr = ((pdn->busno << 16) | (pdn->devfn << 8));
+ 
+ 	ret = rtas_call(ddw_avail[0], 3, 5, (u32 *)query,
+ 		  cfg_addr, BUID_HI(buid), BUID_LO(buid));
+@@ -855,7 +855,8 @@ static int create_ddw(struct pci_dev *dev, const u32 *ddw_avail,
+ 			struct ddw_create_response *create, int page_shift,
+ 			int window_shift)
+ {
+-	struct eeh_dev *edev;
++	struct device_node *dn;
++	struct pci_dn *pdn;
+ 	u32 cfg_addr;
+ 	u64 buid;
+ 	int ret;
+@@ -866,11 +867,10 @@ static int create_ddw(struct pci_dev *dev, const u32 *ddw_avail,
+ 	 * Retrieve them from the pci device, not the node with the
+ 	 * dma-window property
+ 	 */
+-	edev = pci_dev_to_eeh_dev(dev);
+-	cfg_addr = edev->config_addr;
+-	if (edev->pe_config_addr)
+-		cfg_addr = edev->pe_config_addr;
+-	buid = edev->phb->buid;
++	dn = pci_device_to_OF_node(dev);
++	pdn = PCI_DN(dn);
++	buid = pdn->phb->buid;
++	cfg_addr = ((pdn->busno << 16) | (pdn->devfn << 8));
+ 
+ 	do {
+ 		/* extra outputs are LIOBN and dma-addr (hi, lo) */
+diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
+index cd29d2f4e4f3..749313b452ae 100644
+--- a/arch/s390/include/asm/syscall.h
++++ b/arch/s390/include/asm/syscall.h
+@@ -54,7 +54,7 @@ static inline void syscall_set_return_value(struct task_struct *task,
+ 					    struct pt_regs *regs,
+ 					    int error, long val)
+ {
+-	regs->gprs[2] = error ? -error : val;
++	regs->gprs[2] = error ? error : val;
+ }
+ 
+ static inline void syscall_get_arguments(struct task_struct *task,
+diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
+index 878df7e88cd4..3ef7e11b06fb 100644
+--- a/arch/x86/boot/Makefile
++++ b/arch/x86/boot/Makefile
+@@ -156,6 +156,9 @@ isoimage: $(obj)/bzImage
+ 	for i in lib lib64 share end ; do \
+ 		if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
+ 			cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
++			if [ -f /usr/$$i/syslinux/ldlinux.c32 ]; then \
++				cp /usr/$$i/syslinux/ldlinux.c32 $(obj)/isoimage ; \
++			fi ; \
+ 			break ; \
+ 		fi ; \
+ 		if [ $$i = end ] ; then exit 1 ; fi ; \
+diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
+index dec8de4e1663..0c02d794e802 100644
+--- a/arch/x86/kernel/amd_nb.c
++++ b/arch/x86/kernel/amd_nb.c
+@@ -67,8 +67,8 @@ int amd_cache_northbridges(void)
+ 	while ((misc = next_northbridge(misc, amd_nb_misc_ids)) != NULL)
+ 		i++;
+ 
+-	if (i == 0)
+-		return 0;
++	if (!i)
++		return -ENODEV;
+ 
+ 	nb = kzalloc(i * sizeof(struct amd_northbridge), GFP_KERNEL);
+ 	if (!nb)
+diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
+index 61cd5200608d..a5186a47b12f 100644
+--- a/arch/x86/kernel/cpu/perf_event_intel.c
++++ b/arch/x86/kernel/cpu/perf_event_intel.c
+@@ -2606,13 +2606,13 @@ __init int intel_pmu_init(void)
+ 		 * counter, so do not extend mask to generic counters
+ 		 */
+ 		for_each_event_constraint(c, x86_pmu.event_constraints) {
+-			if (c->cmask != FIXED_EVENT_FLAGS
+-			    || c->idxmsk64 == INTEL_PMC_MSK_FIXED_REF_CYCLES) {
+-				continue;
++			if (c->cmask == FIXED_EVENT_FLAGS
++			    && c->idxmsk64 != INTEL_PMC_MSK_FIXED_REF_CYCLES) {
++				c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;
+ 			}
+-
+-			c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;
+-			c->weight += x86_pmu.num_counters;
++			c->idxmsk64 &=
++				~(~0ULL << (INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed));
++			c->weight = hweight64(c->idxmsk64);
+ 		}
+ 	}
+ 
+diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
+index 490fee15fea5..6cd32acb376f 100644
+--- a/arch/x86/kernel/kprobes/core.c
++++ b/arch/x86/kernel/kprobes/core.c
+@@ -911,7 +911,19 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
+ 		 * normal page fault.
+ 		 */
+ 		regs->ip = (unsigned long)cur->addr;
++		/*
++		 * Trap flag (TF) has been set here because this fault
++		 * happened where the single stepping will be done.
++		 * So clear it by resetting the current kprobe:
++		 */
++		regs->flags &= ~X86_EFLAGS_TF;
++
++		/*
++		 * If the TF flag was set before the kprobe hit,
++		 * don't touch it:
++		 */
+ 		regs->flags |= kcb->kprobe_old_flags;
++
+ 		if (kcb->kprobe_status == KPROBE_REENTER)
+ 			restore_previous_kprobe(kcb);
+ 		else
+diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
+index c6c77b767a8d..05383d644e3a 100644
+--- a/drivers/ata/libata-eh.c
++++ b/drivers/ata/libata-eh.c
+@@ -604,7 +604,7 @@ void ata_scsi_error(struct Scsi_Host *host)
+ 	ata_scsi_port_error_handler(host, ap);
+ 
+ 	/* finish or retry handled scmd's and clean up */
+-	WARN_ON(host->host_failed || !list_empty(&eh_work_q));
++	WARN_ON(!list_empty(&eh_work_q));
+ 
+ 	DPRINTK("EXIT\n");
+ }
+diff --git a/drivers/base/module.c b/drivers/base/module.c
+index db930d3ee312..2a215780eda2 100644
+--- a/drivers/base/module.c
++++ b/drivers/base/module.c
+@@ -24,10 +24,12 @@ static char *make_driver_name(struct device_driver *drv)
+ 
+ static void module_create_drivers_dir(struct module_kobject *mk)
+ {
+-	if (!mk || mk->drivers_dir)
+-		return;
++	static DEFINE_MUTEX(drivers_dir_mutex);
+ 
+-	mk->drivers_dir = kobject_create_and_add("drivers", &mk->kobj);
++	mutex_lock(&drivers_dir_mutex);
++	if (mk && !mk->drivers_dir)
++		mk->drivers_dir = kobject_create_and_add("drivers", &mk->kobj);
++	mutex_unlock(&drivers_dir_mutex);
+ }
+ 
+ void module_add_driver(struct module *mod, struct device_driver *drv)
+diff --git a/drivers/crypto/ux500/hash/hash_core.c b/drivers/crypto/ux500/hash/hash_core.c
+index 8e5e0187506f..3ff21c3e9ab2 100644
+--- a/drivers/crypto/ux500/hash/hash_core.c
++++ b/drivers/crypto/ux500/hash/hash_core.c
+@@ -797,7 +797,7 @@ static int hash_process_data(struct hash_device_data *device_data,
+ 						&device_data->state);
+ 				memmove(req_ctx->state.buffer,
+ 					device_data->state.buffer,
+-					HASH_BLOCK_SIZE / sizeof(u32));
++					HASH_BLOCK_SIZE);
+ 				if (ret) {
+ 					dev_err(device_data->dev,
+ 						"%s: hash_resume_state() failed!\n",
+@@ -848,7 +848,7 @@ static int hash_process_data(struct hash_device_data *device_data,
+ 
+ 			memmove(device_data->state.buffer,
+ 				req_ctx->state.buffer,
+-				HASH_BLOCK_SIZE / sizeof(u32));
++				HASH_BLOCK_SIZE);
+ 			if (ret) {
+ 				dev_err(device_data->dev, "%s: hash_save_state() failed!\n",
+ 					__func__);
+diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
+index 0a9d1fd32994..d30aba867a3a 100644
+--- a/drivers/gpu/drm/i915/intel_display.c
++++ b/drivers/gpu/drm/i915/intel_display.c
+@@ -5590,12 +5590,14 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
+ 	struct drm_i915_private *dev_priv = dev->dev_private;
+ 	struct drm_mode_config *mode_config = &dev->mode_config;
+ 	struct intel_encoder *encoder;
++	int i;
+ 	u32 val, final;
+ 	bool has_lvds = false;
+ 	bool has_cpu_edp = false;
+ 	bool has_panel = false;
+ 	bool has_ck505 = false;
+ 	bool can_ssc = false;
++	bool using_ssc_source = false;
+ 
+ 	/* We need to take the global config into account */
+ 	list_for_each_entry(encoder, &mode_config->encoder_list,
+@@ -5621,8 +5623,22 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
+ 		can_ssc = true;
+ 	}
+ 
+-	DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
+-		      has_panel, has_lvds, has_ck505);
++	/* Check if any DPLLs are using the SSC source */
++	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
++		u32 temp = I915_READ(PCH_DPLL(i));
++
++		if (!(temp & DPLL_VCO_ENABLE))
++			continue;
++
++		if ((temp & PLL_REF_INPUT_MASK) ==
++		    PLLB_REF_INPUT_SPREADSPECTRUMIN) {
++			using_ssc_source = true;
++			break;
++		}
++	}
++
++	DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n",
++		      has_panel, has_lvds, has_ck505, using_ssc_source);
+ 
+ 	/* Ironlake: try to setup display ref clock before DPLL
+ 	 * enabling. This is only under driver's control after
+@@ -5659,9 +5675,9 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
+ 				final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
+ 		} else
+ 			final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
+-	} else {
+-		final |= DREF_SSC_SOURCE_DISABLE;
+-		final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
++	} else if (using_ssc_source) {
++		final |= DREF_SSC_SOURCE_ENABLE;
++		final |= DREF_SSC1_ENABLE;
+ 	}
+ 
+ 	if (final == val)
+@@ -5708,7 +5724,7 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
+ 		POSTING_READ(PCH_DREF_CONTROL);
+ 		udelay(200);
+ 	} else {
+-		DRM_DEBUG_KMS("Disabling SSC entirely\n");
++		DRM_DEBUG_KMS("Disabling CPU source output\n");
+ 
+ 		val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
+ 
+@@ -5719,16 +5735,20 @@ static void ironlake_init_pch_refclk(struct drm_device *dev)
+ 		POSTING_READ(PCH_DREF_CONTROL);
+ 		udelay(200);
+ 
+-		/* Turn off the SSC source */
+-		val &= ~DREF_SSC_SOURCE_MASK;
+-		val |= DREF_SSC_SOURCE_DISABLE;
++		if (!using_ssc_source) {
++			DRM_DEBUG_KMS("Disabling SSC source\n");
+ 
+-		/* Turn off SSC1 */
+-		val &= ~DREF_SSC1_ENABLE;
++			/* Turn off the SSC source */
++			val &= ~DREF_SSC_SOURCE_MASK;
++			val |= DREF_SSC_SOURCE_DISABLE;
+ 
+-		I915_WRITE(PCH_DREF_CONTROL, val);
+-		POSTING_READ(PCH_DREF_CONTROL);
+-		udelay(200);
++			/* Turn off SSC1 */
++			val &= ~DREF_SSC1_ENABLE;
++
++			I915_WRITE(PCH_DREF_CONTROL, val);
++			POSTING_READ(PCH_DREF_CONTROL);
++			udelay(200);
++		}
+ 	}
+ 
+ 	BUG_ON(val != final);
+diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
+index 129915eca07b..578eb21ca584 100644
+--- a/drivers/gpu/drm/radeon/radeon_device.c
++++ b/drivers/gpu/drm/radeon/radeon_device.c
+@@ -548,6 +548,23 @@ void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
+ /*
+  * GPU helpers function.
+  */
++
++/**
++ * radeon_device_is_virtual - check if we are running is a virtual environment
++ *
++ * Check if the asic has been passed through to a VM (all asics).
++ * Used at driver startup.
++ * Returns true if virtual or false if not.
++ */
++static bool radeon_device_is_virtual(void)
++{
++#ifdef CONFIG_X86
++	return boot_cpu_has(X86_FEATURE_HYPERVISOR);
++#else
++	return false;
++#endif
++}
++
+ /**
+  * radeon_card_posted - check if the hw has already been initialized
+  *
+@@ -561,6 +578,10 @@ bool radeon_card_posted(struct radeon_device *rdev)
+ {
+ 	uint32_t reg;
+ 
++	/* for pass through, always force asic_init */
++	if (radeon_device_is_virtual())
++		return false;
++
+ 	/* required for EFI mode on macbook2,1 which uses an r5xx asic */
+ 	if (efi_enabled(EFI_BOOT) &&
+ 	    (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) &&
+diff --git a/drivers/hid/hid-elo.c b/drivers/hid/hid-elo.c
+index 4e49462870ab..d0c8a1c1e1fe 100644
+--- a/drivers/hid/hid-elo.c
++++ b/drivers/hid/hid-elo.c
+@@ -259,7 +259,7 @@ static void elo_remove(struct hid_device *hdev)
+ 	struct elo_priv *priv = hid_get_drvdata(hdev);
+ 
+ 	hid_hw_stop(hdev);
+-	flush_workqueue(wq);
++	cancel_delayed_work_sync(&priv->work);
+ 	kfree(priv);
+ }
+ 
+diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
+index 2f1ddca6f2e0..700145b15088 100644
+--- a/drivers/hid/usbhid/hiddev.c
++++ b/drivers/hid/usbhid/hiddev.c
+@@ -516,13 +516,13 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd,
+ 					goto inval;
+ 			} else if (uref->usage_index >= field->report_count)
+ 				goto inval;
+-
+-			else if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
+-				 (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
+-				  uref->usage_index + uref_multi->num_values > field->report_count))
+-				goto inval;
+ 		}
+ 
++		if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
++		    (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
++		     uref->usage_index + uref_multi->num_values > field->report_count))
++			goto inval;
++
+ 		switch (cmd) {
+ 		case HIDIOCGUSAGE:
+ 			uref->value = field->value[uref->usage_index];
+diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c
+index 98ba761cbb9c..d8738d4f8df3 100644
+--- a/drivers/iio/accel/kxsd9.c
++++ b/drivers/iio/accel/kxsd9.c
+@@ -81,7 +81,7 @@ static int kxsd9_write_scale(struct iio_dev *indio_dev, int micro)
+ 
+ 	mutex_lock(&st->buf_lock);
+ 	ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
+-	if (ret)
++	if (ret < 0)
+ 		goto error_ret;
+ 	st->tx[0] = KXSD9_WRITE(KXSD9_REG_CTRL_C);
+ 	st->tx[1] = (ret & ~KXSD9_FS_MASK) | i;
+@@ -163,7 +163,7 @@ static int kxsd9_read_raw(struct iio_dev *indio_dev,
+ 		break;
+ 	case IIO_CHAN_INFO_SCALE:
+ 		ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
+-		if (ret)
++		if (ret < 0)
+ 			goto error_ret;
+ 		*val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK];
+ 		ret = IIO_VAL_INT_PLUS_MICRO;
+diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
+index 70f78c3062a7..8e2b9e70511d 100644
+--- a/drivers/iio/adc/ad7266.c
++++ b/drivers/iio/adc/ad7266.c
+@@ -396,8 +396,8 @@ static int ad7266_probe(struct spi_device *spi)
+ 
+ 	st = iio_priv(indio_dev);
+ 
+-	st->reg = devm_regulator_get(&spi->dev, "vref");
+-	if (!IS_ERR_OR_NULL(st->reg)) {
++	st->reg = devm_regulator_get_optional(&spi->dev, "vref");
++	if (!IS_ERR(st->reg)) {
+ 		ret = regulator_enable(st->reg);
+ 		if (ret)
+ 			return ret;
+@@ -408,6 +408,9 @@ static int ad7266_probe(struct spi_device *spi)
+ 
+ 		st->vref_mv = ret / 1000;
+ 	} else {
++		/* Any other error indicates that the regulator does exist */
++		if (PTR_ERR(st->reg) != -ENODEV)
++			return PTR_ERR(st->reg);
+ 		/* Use internal reference */
+ 		st->vref_mv = 2500;
+ 	}
+diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
+index 766fab24b720..bc7f51f9a00a 100644
+--- a/drivers/iio/industrialio-trigger.c
++++ b/drivers/iio/industrialio-trigger.c
+@@ -205,22 +205,35 @@ static int iio_trigger_attach_poll_func(struct iio_trigger *trig,
+ 
+ 	/* Prevent the module from being removed whilst attached to a trigger */
+ 	__module_get(pf->indio_dev->info->driver_module);
++
++	/* Get irq number */
+ 	pf->irq = iio_trigger_get_irq(trig);
++	if (pf->irq < 0)
++		goto out_put_module;
++
++	/* Request irq */
+ 	ret = request_threaded_irq(pf->irq, pf->h, pf->thread,
+ 				   pf->type, pf->name,
+ 				   pf);
+-	if (ret < 0) {
+-		module_put(pf->indio_dev->info->driver_module);
+-		return ret;
+-	}
++	if (ret < 0)
++		goto out_put_irq;
+ 
++	/* Enable trigger in driver */
+ 	if (trig->ops && trig->ops->set_trigger_state && notinuse) {
+ 		ret = trig->ops->set_trigger_state(trig, true);
+ 		if (ret < 0)
+-			module_put(pf->indio_dev->info->driver_module);
++			goto out_free_irq;
+ 	}
+ 
+ 	return ret;
++
++out_free_irq:
++	free_irq(pf->irq, pf);
++out_put_irq:
++	iio_trigger_put_irq(trig, pf->irq);
++out_put_module:
++	module_put(pf->indio_dev->info->driver_module);
++	return ret;
+ }
+ 
+ static int iio_trigger_detach_poll_func(struct iio_trigger *trig,
+diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c
+index 1ddcebd84622..e05c73aeec66 100644
+--- a/drivers/infiniband/hw/mlx4/ah.c
++++ b/drivers/infiniband/hw/mlx4/ah.c
+@@ -46,6 +46,7 @@ static struct ib_ah *create_ib_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr,
+ 
+ 	ah->av.ib.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
+ 	ah->av.ib.g_slid  = ah_attr->src_path_bits;
++	ah->av.ib.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
+ 	if (ah_attr->ah_flags & IB_AH_GRH) {
+ 		ah->av.ib.g_slid   |= 0x80;
+ 		ah->av.ib.gid_index = ah_attr->grh.sgid_index;
+@@ -63,7 +64,6 @@ static struct ib_ah *create_ib_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr,
+ 		       !(1 << ah->av.ib.stat_rate & dev->caps.stat_rate_support))
+ 			--ah->av.ib.stat_rate;
+ 	}
+-	ah->av.ib.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
+ 
+ 	return &ah->ibah;
+ }
+diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
+index 3e1d7d29b4ec..758596021cf0 100644
+--- a/drivers/net/ethernet/atheros/alx/main.c
++++ b/drivers/net/ethernet/atheros/alx/main.c
+@@ -86,9 +86,14 @@ static int alx_refill_rx_ring(struct alx_priv *alx, gfp_t gfp)
+ 	while (!cur_buf->skb && next != rxq->read_idx) {
+ 		struct alx_rfd *rfd = &rxq->rfd[cur];
+ 
+-		skb = __netdev_alloc_skb(alx->dev, alx->rxbuf_size, gfp);
++		skb = __netdev_alloc_skb(alx->dev, alx->rxbuf_size + 64, gfp);
+ 		if (!skb)
+ 			break;
++
++		/* Workround for the HW RX DMA overflow issue */
++		if (((unsigned long)skb->data & 0xfff) == 0xfc0)
++			skb_reserve(skb, 64);
++
+ 		dma = dma_map_single(&alx->hw.pdev->dev,
+ 				     skb->data, alx->rxbuf_size,
+ 				     DMA_FROM_DEVICE);
+diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
+index c6637229bdb8..584504e6e95c 100644
+--- a/drivers/net/usb/cdc_ncm.c
++++ b/drivers/net/usb/cdc_ncm.c
+@@ -438,6 +438,13 @@ advance:
+ 	if (cdc_ncm_setup(dev))
+ 		goto error2;
+ 
++	/* Some firmwares need a pause here or they will silently fail
++	 * to set up the interface properly.  This value was decided
++	 * empirically on a Sierra Wireless MC7455 running 02.08.02.00
++	 * firmware.
++	 */
++	usleep_range(10000, 20000);
++
+ 	/* configure data interface */
+ 	temp = usb_set_interface(dev->udev, iface_no, data_altsetting);
+ 	if (temp) {
+diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
+index 505ff601d9f4..cb58ad0311da 100644
+--- a/drivers/net/wireless/mac80211_hwsim.c
++++ b/drivers/net/wireless/mac80211_hwsim.c
+@@ -2251,6 +2251,7 @@ static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
+ 	if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
+ 	    !info->attrs[HWSIM_ATTR_FLAGS] ||
+ 	    !info->attrs[HWSIM_ATTR_COOKIE] ||
++	    !info->attrs[HWSIM_ATTR_SIGNAL] ||
+ 	    !info->attrs[HWSIM_ATTR_TX_INFO])
+ 		goto out;
+ 
+diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
+index 787c8a883c3c..e11ca1f7bef6 100644
+--- a/drivers/scsi/scsi_error.c
++++ b/drivers/scsi/scsi_error.c
+@@ -1111,7 +1111,6 @@ static int scsi_eh_action(struct scsi_cmnd *scmd, int rtn)
+  */
+ void scsi_eh_finish_cmd(struct scsi_cmnd *scmd, struct list_head *done_q)
+ {
+-	scmd->device->host->host_failed--;
+ 	scmd->eh_eflags = 0;
+ 	list_move_tail(&scmd->eh_entry, done_q);
+ }
+@@ -2193,6 +2192,9 @@ int scsi_error_handler(void *data)
+ 		else
+ 			scsi_unjam_host(shost);
+ 
++		/* All scmds have been handled */
++		shost->host_failed = 0;
++
+ 		/*
+ 		 * Note - if the above fails completely, the action is to take
+ 		 * individual devices offline and flush the queue of any
+diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
+index 7f6ccdfaf168..99e148899404 100644
+--- a/drivers/staging/iio/accel/sca3000_core.c
++++ b/drivers/staging/iio/accel/sca3000_core.c
+@@ -592,7 +592,7 @@ static ssize_t sca3000_read_frequency(struct device *dev,
+ 		goto error_ret_mut;
+ 	ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL);
+ 	mutex_unlock(&st->lock);
+-	if (ret)
++	if (ret < 0)
+ 		goto error_ret;
+ 	val = ret;
+ 	if (base_freq > 0)
+diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
+index d0e3a4497707..adf4d3124cc6 100644
+--- a/drivers/tty/vt/keyboard.c
++++ b/drivers/tty/vt/keyboard.c
+@@ -365,34 +365,22 @@ static void to_utf8(struct vc_data *vc, uint c)
+ 
+ static void do_compute_shiftstate(void)
+ {
+-	unsigned int i, j, k, sym, val;
++	unsigned int k, sym, val;
+ 
+ 	shift_state = 0;
+ 	memset(shift_down, 0, sizeof(shift_down));
+ 
+-	for (i = 0; i < ARRAY_SIZE(key_down); i++) {
+-
+-		if (!key_down[i])
++	for_each_set_bit(k, key_down, min(NR_KEYS, KEY_CNT)) {
++		sym = U(key_maps[0][k]);
++		if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
+ 			continue;
+ 
+-		k = i * BITS_PER_LONG;
+-
+-		for (j = 0; j < BITS_PER_LONG; j++, k++) {
+-
+-			if (!test_bit(k, key_down))
+-				continue;
++		val = KVAL(sym);
++		if (val == KVAL(K_CAPSSHIFT))
++			val = KVAL(K_SHIFT);
+ 
+-			sym = U(key_maps[0][k]);
+-			if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
+-				continue;
+-
+-			val = KVAL(sym);
+-			if (val == KVAL(K_CAPSSHIFT))
+-				val = KVAL(K_SHIFT);
+-
+-			shift_down[val]++;
+-			shift_state |= (1 << val);
+-		}
++		shift_down[val]++;
++		shift_state |= BIT(val);
+ 	}
+ }
+ 
+diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
+index 00addda9ad53..b6c85fbd0a14 100644
+--- a/drivers/usb/core/quirks.c
++++ b/drivers/usb/core/quirks.c
+@@ -205,6 +205,9 @@ static const struct usb_device_id usb_amd_resume_quirk_list[] = {
+ 	/* Logitech Optical Mouse M90/M100 */
+ 	{ USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },
+ 
++	/* Acer C120 LED Projector */
++	{ USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
++
+ 	/* Blackmagic Design Intensity Shuttle */
+ 	{ USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
+ 
+diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
+index 6b0fb6af6815..a2df3e7e66e2 100644
+--- a/drivers/usb/musb/musb_host.c
++++ b/drivers/usb/musb/musb_host.c
+@@ -583,14 +583,13 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep)
+ 		musb_writew(ep->regs, MUSB_TXCSR, 0);
+ 
+ 	/* scrub all previous state, clearing toggle */
+-	} else {
+-		csr = musb_readw(ep->regs, MUSB_RXCSR);
+-		if (csr & MUSB_RXCSR_RXPKTRDY)
+-			WARNING("rx%d, packet/%d ready?\n", ep->epnum,
+-				musb_readw(ep->regs, MUSB_RXCOUNT));
+-
+-		musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG);
+ 	}
++	csr = musb_readw(ep->regs, MUSB_RXCSR);
++	if (csr & MUSB_RXCSR_RXPKTRDY)
++		WARNING("rx%d, packet/%d ready?\n", ep->epnum,
++			musb_readw(ep->regs, MUSB_RXCOUNT));
++
++	musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG);
+ 
+ 	/* target addr and (for multipoint) hub addr/port */
+ 	if (musb->is_multipoint) {
+@@ -950,9 +949,15 @@ static void musb_bulk_nak_timeout(struct musb *musb, struct musb_hw_ep *ep,
+ 	if (is_in) {
+ 		dma = is_dma_capable() ? ep->rx_channel : NULL;
+ 
+-		/* clear nak timeout bit */
++		/*
++		 * Need to stop the transaction by clearing REQPKT first
++		 * then the NAK Timeout bit ref MUSBMHDRC USB 2.0 HIGH-SPEED
++		 * DUAL-ROLE CONTROLLER Programmer's Guide, section 9.2.2
++		 */
+ 		rx_csr = musb_readw(epio, MUSB_RXCSR);
+ 		rx_csr |= MUSB_RXCSR_H_WZC_BITS;
++		rx_csr &= ~MUSB_RXCSR_H_REQPKT;
++		musb_writew(epio, MUSB_RXCSR, rx_csr);
+ 		rx_csr &= ~MUSB_RXCSR_DATAERROR;
+ 		musb_writew(epio, MUSB_RXCSR, rx_csr);
+ 
+diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c
+index 7231859119f1..9deb30b0e077 100644
+--- a/drivers/xen/xen-acpi-processor.c
++++ b/drivers/xen/xen-acpi-processor.c
+@@ -423,36 +423,7 @@ upload:
+ 
+ 	return 0;
+ }
+-static int __init check_prereq(void)
+-{
+-	struct cpuinfo_x86 *c = &cpu_data(0);
+-
+-	if (!xen_initial_domain())
+-		return -ENODEV;
+-
+-	if (!acpi_gbl_FADT.smi_command)
+-		return -ENODEV;
+-
+-	if (c->x86_vendor == X86_VENDOR_INTEL) {
+-		if (!cpu_has(c, X86_FEATURE_EST))
+-			return -ENODEV;
+ 
+-		return 0;
+-	}
+-	if (c->x86_vendor == X86_VENDOR_AMD) {
+-		/* Copied from powernow-k8.h, can't include ../cpufreq/powernow
+-		 * as we get compile warnings for the static functions.
+-		 */
+-#define CPUID_FREQ_VOLT_CAPABILITIES    0x80000007
+-#define USE_HW_PSTATE                   0x00000080
+-		u32 eax, ebx, ecx, edx;
+-		cpuid(CPUID_FREQ_VOLT_CAPABILITIES, &eax, &ebx, &ecx, &edx);
+-		if ((edx & USE_HW_PSTATE) != USE_HW_PSTATE)
+-			return -ENODEV;
+-		return 0;
+-	}
+-	return -ENODEV;
+-}
+ /* acpi_perf_data is a pointer to percpu data. */
+ static struct acpi_processor_performance __percpu *acpi_perf_data;
+ 
+@@ -508,10 +479,10 @@ static struct syscore_ops xap_syscore_ops = {
+ static int __init xen_acpi_processor_init(void)
+ {
+ 	unsigned int i;
+-	int rc = check_prereq();
++	int rc;
+ 
+-	if (rc)
+-		return rc;
++	if (!xen_initial_domain())
++		return -ENODEV;
+ 
+ 	nr_acpi_bits = get_max_acpi_id() + 1;
+ 	acpi_ids_done = kcalloc(BITS_TO_LONGS(nr_acpi_bits), sizeof(unsigned long), GFP_KERNEL);
+diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
+index 8813ff776ba3..7522829b29ef 100644
+--- a/fs/cifs/connect.c
++++ b/fs/cifs/connect.c
+@@ -410,7 +410,9 @@ cifs_echo_request(struct work_struct *work)
+ 	 * server->ops->need_neg() == true. Also, no need to ping if
+ 	 * we got a response recently.
+ 	 */
+-	if (!server->ops->need_neg || server->ops->need_neg(server) ||
++
++	if (server->tcpStatus == CifsNeedReconnect ||
++	    server->tcpStatus == CifsExiting || server->tcpStatus == CifsNew ||
+ 	    (server->ops->can_echo && !server->ops->can_echo(server)) ||
+ 	    time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ))
+ 		goto requeue_echo;
+diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
+index fc656bc5d6cb..e83f7d2b585b 100644
+--- a/fs/cifs/smb2pdu.c
++++ b/fs/cifs/smb2pdu.c
+@@ -1590,6 +1590,33 @@ SMB2_echo(struct TCP_Server_Info *server)
+ 
+ 	cifs_dbg(FYI, "In echo request\n");
+ 
++	if (server->tcpStatus == CifsNeedNegotiate) {
++		struct list_head *tmp, *tmp2;
++		struct cifs_ses *ses;
++		struct cifs_tcon *tcon;
++
++		cifs_dbg(FYI, "Need negotiate, reconnecting tcons\n");
++		spin_lock(&cifs_tcp_ses_lock);
++		list_for_each(tmp, &server->smb_ses_list) {
++			ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
++			list_for_each(tmp2, &ses->tcon_list) {
++				tcon = list_entry(tmp2, struct cifs_tcon,
++						  tcon_list);
++				/* add check for persistent handle reconnect */
++				if (tcon && tcon->need_reconnect) {
++					spin_unlock(&cifs_tcp_ses_lock);
++					rc = smb2_reconnect(SMB2_ECHO, tcon);
++					spin_lock(&cifs_tcp_ses_lock);
++				}
++			}
++		}
++		spin_unlock(&cifs_tcp_ses_lock);
++	}
++
++	/* if no session, renegotiate failed above */
++	if (server->tcpStatus == CifsNeedNegotiate)
++		return -EIO;
++
+ 	rc = small_smb2_init(SMB2_ECHO, NULL, (void **)&req);
+ 	if (rc)
+ 		return rc;
+diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
+index 4a48fe4b84b6..589418d44310 100644
+--- a/fs/nfs/dir.c
++++ b/fs/nfs/dir.c
+@@ -1459,9 +1459,9 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry,
+ 		err = PTR_ERR(inode);
+ 		trace_nfs_atomic_open_exit(dir, ctx, open_flags, err);
+ 		put_nfs_open_context(ctx);
++		d_drop(dentry);
+ 		switch (err) {
+ 		case -ENOENT:
+-			d_drop(dentry);
+ 			d_add(dentry, NULL);
+ 			break;
+ 		case -EISDIR:
+diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
+index 3b5e86fd2800..98eae9cc78be 100644
+--- a/fs/nfs/nfs4proc.c
++++ b/fs/nfs/nfs4proc.c
+@@ -2583,12 +2583,11 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
+ 			call_close |= is_wronly;
+ 		else if (is_wronly)
+ 			calldata->arg.fmode |= FMODE_WRITE;
++		if (calldata->arg.fmode != (FMODE_READ|FMODE_WRITE))
++			call_close |= is_rdwr;
+ 	} else if (is_rdwr)
+ 		calldata->arg.fmode |= FMODE_READ|FMODE_WRITE;
+ 
+-	if (calldata->arg.fmode == 0)
+-		call_close |= is_rdwr;
+-
+ 	if (!nfs4_valid_open_stateid(state))
+ 		call_close = 0;
+ 	spin_unlock(&state->owner->so_lock);
+diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
+index 11c1fba29312..f8e5593884a5 100644
+--- a/fs/nfsd/nfs2acl.c
++++ b/fs/nfsd/nfs2acl.c
+@@ -104,22 +104,21 @@ static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
+ 		goto out;
+ 
+ 	inode = fh->fh_dentry->d_inode;
+-	if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
+-		error = -EOPNOTSUPP;
+-		goto out_errno;
+-	}
+ 
+ 	error = fh_want_write(fh);
+ 	if (error)
+ 		goto out_errno;
+ 
+-	error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
++	fh_lock(fh);
++
++	error = set_posix_acl(inode, ACL_TYPE_ACCESS, argp->acl_access);
+ 	if (error)
+-		goto out_drop_write;
+-	error = inode->i_op->set_acl(inode, argp->acl_default,
+-				     ACL_TYPE_DEFAULT);
++		goto out_drop_lock;
++	error = set_posix_acl(inode, ACL_TYPE_DEFAULT, argp->acl_default);
+ 	if (error)
+-		goto out_drop_write;
++		goto out_drop_lock;
++
++	fh_unlock(fh);
+ 
+ 	fh_drop_write(fh);
+ 
+@@ -131,7 +130,8 @@ out:
+ 	posix_acl_release(argp->acl_access);
+ 	posix_acl_release(argp->acl_default);
+ 	return nfserr;
+-out_drop_write:
++out_drop_lock:
++	fh_unlock(fh);
+ 	fh_drop_write(fh);
+ out_errno:
+ 	nfserr = nfserrno(error);
+diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
+index adc5f1b1dc26..bcfef1c2b2a5 100644
+--- a/fs/nfsd/nfs3acl.c
++++ b/fs/nfsd/nfs3acl.c
+@@ -95,22 +95,20 @@ static __be32 nfsd3_proc_setacl(struct svc_rqst * rqstp,
+ 		goto out;
+ 
+ 	inode = fh->fh_dentry->d_inode;
+-	if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
+-		error = -EOPNOTSUPP;
+-		goto out_errno;
+-	}
+ 
+ 	error = fh_want_write(fh);
+ 	if (error)
+ 		goto out_errno;
+ 
+-	error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
++	fh_lock(fh);
++
++	error = set_posix_acl(inode, ACL_TYPE_ACCESS, argp->acl_access);
+ 	if (error)
+-		goto out_drop_write;
+-	error = inode->i_op->set_acl(inode, argp->acl_default,
+-				     ACL_TYPE_DEFAULT);
++		goto out_drop_lock;
++	error = set_posix_acl(inode, ACL_TYPE_DEFAULT, argp->acl_default);
+ 
+-out_drop_write:
++out_drop_lock:
++	fh_unlock(fh);
+ 	fh_drop_write(fh);
+ out_errno:
+ 	nfserr = nfserrno(error);
+diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
+index dea8c60954ba..1e8857b6dbba 100644
+--- a/fs/nfsd/nfs4acl.c
++++ b/fs/nfsd/nfs4acl.c
+@@ -818,9 +818,6 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
+ 	dentry = fhp->fh_dentry;
+ 	inode = dentry->d_inode;
+ 
+-	if (!inode->i_op->set_acl || !IS_POSIXACL(inode))
+-		return nfserr_attrnotsupp;
+-
+ 	if (S_ISDIR(inode->i_mode))
+ 		flags = NFS4_ACL_DIR;
+ 
+@@ -830,16 +827,19 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
+ 	if (host_error < 0)
+ 		goto out_nfserr;
+ 
+-	host_error = inode->i_op->set_acl(inode, pacl, ACL_TYPE_ACCESS);
++	fh_lock(fhp);
++
++	host_error = set_posix_acl(inode, ACL_TYPE_ACCESS, pacl);
+ 	if (host_error < 0)
+-		goto out_release;
++		goto out_drop_lock;
+ 
+ 	if (S_ISDIR(inode->i_mode)) {
+-		host_error = inode->i_op->set_acl(inode, dpacl,
+-						  ACL_TYPE_DEFAULT);
++		host_error = set_posix_acl(inode, ACL_TYPE_DEFAULT, dpacl);
+ 	}
+ 
+-out_release:
++out_drop_lock:
++	fh_unlock(fhp);
++
+ 	posix_acl_release(pacl);
+ 	posix_acl_release(dpacl);
+ out_nfserr:
+diff --git a/fs/posix_acl.c b/fs/posix_acl.c
+index 0855f772cd41..3de7c223c963 100644
+--- a/fs/posix_acl.c
++++ b/fs/posix_acl.c
+@@ -787,38 +787,42 @@ posix_acl_xattr_get(struct dentry *dentry, const char *name,
+ 	return error;
+ }
+ 
+-static int
+-posix_acl_xattr_set(struct dentry *dentry, const char *name,
+-		const void *value, size_t size, int flags, int type)
++int
++set_posix_acl(struct inode *inode, int type, struct posix_acl *acl)
+ {
+-	struct inode *inode = dentry->d_inode;
+-	struct posix_acl *acl = NULL;
+-	int ret;
+-
+ 	if (!IS_POSIXACL(inode))
+ 		return -EOPNOTSUPP;
+ 	if (!inode->i_op->set_acl)
+ 		return -EOPNOTSUPP;
+ 
+ 	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
+-		return value ? -EACCES : 0;
++		return acl ? -EACCES : 0;
+ 	if (!inode_owner_or_capable(inode))
+ 		return -EPERM;
+ 
++	if (acl) {
++		int ret = posix_acl_valid(acl);
++		if (ret)
++			return ret;
++	}
++	return inode->i_op->set_acl(inode, acl, type);
++}
++EXPORT_SYMBOL(set_posix_acl);
++
++static int
++posix_acl_xattr_set(struct dentry *dentry, const char *name,
++		const void *value, size_t size, int flags, int type)
++{
++	struct inode *inode = dentry->d_inode;
++	struct posix_acl *acl = NULL;
++	int ret;
++
+ 	if (value) {
+ 		acl = posix_acl_from_xattr(&init_user_ns, value, size);
+ 		if (IS_ERR(acl))
+ 			return PTR_ERR(acl);
+-
+-		if (acl) {
+-			ret = posix_acl_valid(acl);
+-			if (ret)
+-				goto out;
+-		}
+ 	}
+-
+-	ret = inode->i_op->set_acl(inode, acl, type);
+-out:
++	ret = set_posix_acl(inode, type, acl);
+ 	posix_acl_release(acl);
+ 	return ret;
+ }
+diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
+index b56eb6275744..c0d8fde3e6d9 100644
+--- a/fs/ubifs/file.c
++++ b/fs/ubifs/file.c
+@@ -54,6 +54,7 @@
+ #include <linux/mount.h>
+ #include <linux/namei.h>
+ #include <linux/slab.h>
++#include <linux/migrate.h>
+ 
+ static int read_block(struct inode *inode, void *addr, unsigned int block,
+ 		      struct ubifs_data_node *dn)
+@@ -1423,6 +1424,26 @@ static int ubifs_set_page_dirty(struct page *page)
+ 	return ret;
+ }
+ 
++#ifdef CONFIG_MIGRATION
++static int ubifs_migrate_page(struct address_space *mapping,
++		struct page *newpage, struct page *page, enum migrate_mode mode)
++{
++	int rc;
++
++	rc = migrate_page_move_mapping(mapping, newpage, page, NULL, mode, 0);
++	if (rc != MIGRATEPAGE_SUCCESS)
++		return rc;
++
++	if (PagePrivate(page)) {
++		ClearPagePrivate(page);
++		SetPagePrivate(newpage);
++	}
++
++	migrate_page_copy(newpage, page);
++	return MIGRATEPAGE_SUCCESS;
++}
++#endif
++
+ static int ubifs_releasepage(struct page *page, gfp_t unused_gfp_flags)
+ {
+ 	/*
+@@ -1559,6 +1580,9 @@ const struct address_space_operations ubifs_file_address_operations = {
+ 	.write_end      = ubifs_write_end,
+ 	.invalidatepage = ubifs_invalidatepage,
+ 	.set_page_dirty = ubifs_set_page_dirty,
++#ifdef CONFIG_MIGRATION
++	.migratepage	= ubifs_migrate_page,
++#endif
+ 	.releasepage    = ubifs_releasepage,
+ };
+ 
+diff --git a/include/linux/usb/ehci_def.h b/include/linux/usb/ehci_def.h
+index daec99af5d54..1c88b177cb9c 100644
+--- a/include/linux/usb/ehci_def.h
++++ b/include/linux/usb/ehci_def.h
+@@ -178,11 +178,11 @@ struct ehci_regs {
+  * PORTSCx
+  */
+ 	/* HOSTPC: offset 0x84 */
+-	u32		hostpc[1];	/* HOSTPC extension */
++	u32		hostpc[0];	/* HOSTPC extension */
+ #define HOSTPC_PHCD	(1<<22)		/* Phy clock disable */
+ #define HOSTPC_PSPD	(3<<25)		/* Port speed detection */
+ 
+-	u32		reserved5[16];
++	u32		reserved5[17];
+ 
+ 	/* USBMODE_EX: offset 0xc8 */
+ 	u32		usbmode_ex;	/* USB Device mode extension */
+diff --git a/kernel/signal.c b/kernel/signal.c
+index d8db156e5f5c..78d0e8f3f4ad 100644
+--- a/kernel/signal.c
++++ b/kernel/signal.c
+@@ -3004,11 +3004,9 @@ static int do_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t *info)
+ 	 * Nor can they impersonate a kill()/tgkill(), which adds source info.
+ 	 */
+ 	if ((info->si_code >= 0 || info->si_code == SI_TKILL) &&
+-	    (task_pid_vnr(current) != pid)) {
+-		/* We used to allow any < 0 si_code */
+-		WARN_ON_ONCE(info->si_code < 0);
++	    (task_pid_vnr(current) != pid))
+ 		return -EPERM;
+-	}
++
+ 	info->si_signo = sig;
+ 
+ 	/* POSIX.1b doesn't mention process groups.  */
+@@ -3053,12 +3051,10 @@ static int do_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, siginfo_t *info)
+ 	/* Not even root can pretend to send signals from the kernel.
+ 	 * Nor can they impersonate a kill()/tgkill(), which adds source info.
+ 	 */
+-	if (((info->si_code >= 0 || info->si_code == SI_TKILL)) &&
+-	    (task_pid_vnr(current) != pid)) {
+-		/* We used to allow any < 0 si_code */
+-		WARN_ON_ONCE(info->si_code < 0);
++	if ((info->si_code >= 0 || info->si_code == SI_TKILL) &&
++	    (task_pid_vnr(current) != pid))
+ 		return -EPERM;
+-	}
++
+ 	info->si_signo = sig;
+ 
+ 	return do_send_specific(tgid, pid, sig, info);
+diff --git a/kernel/trace/trace_printk.c b/kernel/trace/trace_printk.c
+index 7b900474209d..6973eeca7d99 100644
+--- a/kernel/trace/trace_printk.c
++++ b/kernel/trace/trace_printk.c
+@@ -38,6 +38,10 @@ struct trace_bprintk_fmt {
+ static inline struct trace_bprintk_fmt *lookup_format(const char *fmt)
+ {
+ 	struct trace_bprintk_fmt *pos;
++
++	if (!fmt)
++		return ERR_PTR(-EINVAL);
++
+ 	list_for_each_entry(pos, &trace_bprintk_fmt_list, list) {
+ 		if (!strcmp(pos->fmt, fmt))
+ 			return pos;
+@@ -59,7 +63,8 @@ void hold_module_trace_bprintk_format(const char **start, const char **end)
+ 	for (iter = start; iter < end; iter++) {
+ 		struct trace_bprintk_fmt *tb_fmt = lookup_format(*iter);
+ 		if (tb_fmt) {
+-			*iter = tb_fmt->fmt;
++			if (!IS_ERR(tb_fmt))
++				*iter = tb_fmt->fmt;
+ 			continue;
+ 		}
+ 
+diff --git a/mm/migrate.c b/mm/migrate.c
+index 3acac4a62c4b..23ca861c93e9 100644
+--- a/mm/migrate.c
++++ b/mm/migrate.c
+@@ -423,6 +423,7 @@ int migrate_page_move_mapping(struct address_space *mapping,
+ 
+ 	return MIGRATEPAGE_SUCCESS;
+ }
++EXPORT_SYMBOL(migrate_page_move_mapping);
+ 
+ /*
+  * The expected number of remaining references is the same as that
+@@ -582,6 +583,7 @@ void migrate_page_copy(struct page *newpage, struct page *page)
+ 	if (PageWriteback(newpage))
+ 		end_page_writeback(newpage);
+ }
++EXPORT_SYMBOL(migrate_page_copy);
+ 
+ /************************************************************
+  *                    Migration functions
+diff --git a/mm/shmem.c b/mm/shmem.c
+index 85d8a1a3626c..8791289974c3 100644
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -1893,9 +1893,11 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
+ 									NULL);
+ 		if (error) {
+ 			/* Remove the !PageUptodate pages we added */
+-			shmem_undo_range(inode,
+-				(loff_t)start << PAGE_CACHE_SHIFT,
+-				(loff_t)index << PAGE_CACHE_SHIFT, true);
++			if (index > start) {
++				shmem_undo_range(inode,
++				 (loff_t)start << PAGE_CACHE_SHIFT,
++				 ((loff_t)index << PAGE_CACHE_SHIFT) - 1, true);
++			}
+ 			goto undone;
+ 		}
+ 
+diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
+index 42809cf91488..afdbfd65e71f 100644
+--- a/net/ipv4/ipmr.c
++++ b/net/ipv4/ipmr.c
+@@ -883,8 +883,10 @@ static struct mfc_cache *ipmr_cache_alloc(void)
+ {
+ 	struct mfc_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);
+ 
+-	if (c)
++	if (c) {
++		c->mfc_un.res.last_assert = jiffies - MFC_ASSERT_THRESH - 1;
+ 		c->mfc_un.res.minvif = MAXVIFS;
++	}
+ 	return c;
+ }
+ 
+diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
+index 8b61288e5746..86d30e60242a 100644
+--- a/net/ipv6/ip6mr.c
++++ b/net/ipv6/ip6mr.c
+@@ -1076,6 +1076,7 @@ static struct mfc6_cache *ip6mr_cache_alloc(void)
+ 	struct mfc6_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);
+ 	if (c == NULL)
+ 		return NULL;
++	c->mfc_un.res.last_assert = jiffies - MFC_ASSERT_THRESH - 1;
+ 	c->mfc_un.res.minvif = MAXMIFS;
+ 	return c;
+ }
+diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
+index 317b6dbf3190..fe2c3320e8fe 100644
+--- a/net/ipv6/sit.c
++++ b/net/ipv6/sit.c
+@@ -559,13 +559,13 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
+ 
+ 	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
+ 		ipv4_update_pmtu(skb, dev_net(skb->dev), info,
+-				 t->parms.link, 0, IPPROTO_IPV6, 0);
++				 t->parms.link, 0, iph->protocol, 0);
+ 		err = 0;
+ 		goto out;
+ 	}
+ 	if (type == ICMP_REDIRECT) {
+ 		ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0,
+-			      IPPROTO_IPV6, 0);
++			      iph->protocol, 0);
+ 		err = 0;
+ 		goto out;
+ 	}
+diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
+index 3d52d1d68431..f3057767b53d 100644
+--- a/net/mac80211/mesh.c
++++ b/net/mac80211/mesh.c
+@@ -161,6 +161,10 @@ void mesh_sta_cleanup(struct sta_info *sta)
+ 		del_timer_sync(&sta->plink_timer);
+ 	}
+ 
++	/* make sure no readers can access nexthop sta from here on */
++	mesh_path_flush_by_nexthop(sta);
++	synchronize_net();
++
+ 	if (changed)
+ 		ieee80211_mbss_info_change_notify(sdata, changed);
+ }
+diff --git a/security/keys/key.c b/security/keys/key.c
+index 6e21c11e48bc..9478d668f874 100644
+--- a/security/keys/key.c
++++ b/security/keys/key.c
+@@ -575,7 +575,7 @@ int key_reject_and_link(struct key *key,
+ 
+ 	mutex_unlock(&key_construction_mutex);
+ 
+-	if (keyring)
++	if (keyring && link_ret == 0)
+ 		__key_link_end(keyring, &key->index_key, edit);
+ 
+ 	/* wake up anyone waiting for a key to be constructed */
+diff --git a/sound/core/control.c b/sound/core/control.c
+index 3fcead61f0ef..251bc575f5c3 100644
+--- a/sound/core/control.c
++++ b/sound/core/control.c
+@@ -150,6 +150,8 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
+ 	
+ 	if (snd_BUG_ON(!card || !id))
+ 		return;
++	if (card->shutdown)
++		return;
+ 	read_lock(&card->ctl_files_rwlock);
+ #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
+ 	card->mixer_oss_change_count++;
+diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
+index 8946cef245fc..fe5750a05368 100644
+--- a/sound/drivers/dummy.c
++++ b/sound/drivers/dummy.c
+@@ -422,6 +422,7 @@ static int dummy_hrtimer_stop(struct snd_pcm_substream *substream)
+ 
+ static inline void dummy_hrtimer_sync(struct dummy_hrtimer_pcm *dpcm)
+ {
++	hrtimer_cancel(&dpcm->timer);
+ 	tasklet_kill(&dpcm->tasklet);
+ }
+ 
+diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c
+index ae59dbaa53d9..42d4b13f1fa7 100644
+--- a/sound/pci/au88x0/au88x0_core.c
++++ b/sound/pci/au88x0/au88x0_core.c
+@@ -1442,9 +1442,8 @@ static int vortex_wtdma_bufshift(vortex_t * vortex, int wtdma)
+ 	int page, p, pp, delta, i;
+ 
+ 	page =
+-	    (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) &
+-	     WT_SUBBUF_MASK)
+-	    >> WT_SUBBUF_SHIFT;
++	    (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2))
++	     >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
+ 	if (dma->nr_periods >= 4)
+ 		delta = (page - dma->period_real) & 3;
+ 	else {
+diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
+index 9e5cd217ffaf..2b7ad3a908de 100644
+--- a/virt/kvm/kvm_main.c
++++ b/virt/kvm/kvm_main.c
+@@ -2455,7 +2455,7 @@ static long kvm_vm_ioctl(struct file *filp,
+ 		if (copy_from_user(&routing, argp, sizeof(routing)))
+ 			goto out;
+ 		r = -EINVAL;
+-		if (routing.nr >= KVM_MAX_IRQ_ROUTES)
++		if (routing.nr > KVM_MAX_IRQ_ROUTES)
+ 			goto out;
+ 		if (routing.flags)
+ 			goto out;