Re: Linux 2.6.27.32

Greg KH
2009-09-09T04:12:54Z

diff --git a/Makefile b/Makefile
index fa0d21e..00dc0ee 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 27
-EXTRAVERSION = .31
+EXTRAVERSION = .32
NAME = Trembling Tortoise

# *DOCUMENTATION*
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 3da2508..95c65e3 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -135,13 +135,6 @@ module_param(dbg, bool, 0644);
#define ACC_USER_MASK PT_USER_MASK
#define ACC_ALL (ACC_EXEC_MASK | ACC_WRITE_MASK | ACC_USER_MASK)

-struct kvm_pv_mmu_op_buffer {
- void *ptr;
- unsigned len;
- unsigned processed;
- char buf[512] __aligned(sizeof(long));
-};
-
struct kvm_rmap_desc {
u64 *shadow_ptes[RMAP_EXT];
struct kvm_rmap_desc *more;
@@ -305,7 +298,7 @@ static int mmu_topup_memory_caches(struct kvm_vcpu *vcpu)
if (r)
goto out;
r = mmu_topup_memory_cache(&vcpu->arch.mmu_rmap_desc_cache,
- rmap_desc_cache, 1);
+ rmap_desc_cache, 4);
if (r)
goto out;
r = mmu_topup_memory_cache_page(&vcpu->arch.mmu_page_cache, 8);
@@ -1162,7 +1155,7 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
*/
spte = shadow_base_present_pte | shadow_dirty_mask;
if (!speculative)
- pte_access |= PT_ACCESSED_MASK;
+ spte |= shadow_accessed_mask;
if (!dirty)
pte_access &= ~ACC_WRITE_MASK;
if (pte_access & ACC_EXEC_MASK)
@@ -1357,7 +1350,19 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
vcpu->arch.mmu.root_hpa = INVALID_PAGE;
}

-static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
+static int mmu_check_root(struct kvm_vcpu *vcpu, gfn_t root_gfn)
+{
+ int ret = 0;
+
+ if (!kvm_is_visible_gfn(vcpu->kvm, root_gfn)) {
+ set_bit(KVM_REQ_TRIPLE_FAULT, &vcpu->requests);
+ ret = 1;
+ }
+
+ return ret;
+}
+
+static int mmu_alloc_roots(struct kvm_vcpu *vcpu)
{
int i;
gfn_t root_gfn;
@@ -1372,13 +1377,15 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
ASSERT(!VALID_PAGE(root));
if (tdp_enabled)
metaphysical = 1;
+ if (mmu_check_root(vcpu, root_gfn))
+ return 1;
sp = kvm_mmu_get_page(vcpu, root_gfn, 0,
PT64_ROOT_LEVEL, metaphysical,
ACC_ALL, NULL);
root = __pa(sp->spt);
++sp->root_count;
vcpu->arch.mmu.root_hpa = root;
- return;
+ return 0;
}
metaphysical = !is_paging(vcpu);
if (tdp_enabled)
@@ -1395,6 +1402,8 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
root_gfn = vcpu->arch.pdptrs[i] >> PAGE_SHIFT;
} else if (vcpu->arch.mmu.root_level == 0)
root_gfn = 0;
+ if (mmu_check_root(vcpu, root_gfn))
+ return 1;
sp = kvm_mmu_get_page(vcpu, root_gfn, i << 30,
PT32_ROOT_LEVEL, metaphysical,
ACC_ALL, NULL);
@@ -1403,6 +1412,7 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
vcpu->arch.mmu.pae_root[i] = root | PT_PRESENT_MASK;
}
vcpu->arch.mmu.root_hpa = __pa(vcpu->arch.mmu.pae_root);
+ return 0;
}

static gpa_t nonpaging_gva_to_gpa(struct kvm_vcpu *vcpu, gva_t vaddr)
@@ -1646,8 +1656,10 @@ int kvm_mmu_load(struct kvm_vcpu *vcpu)
goto out;
spin_lock(&vcpu->kvm->mmu_lock);
kvm_mmu_free_some_pages(vcpu);
- mmu_alloc_roots(vcpu);
+ r = mmu_alloc_roots(vcpu);
spin_unlock(&vcpu->kvm->mmu_lock);
+ if (r)
+ goto out;
kvm_x86_ops->set_cr3(vcpu, vcpu->arch.mmu.root_hpa);
kvm_mmu_flush_tlb(vcpu);
out:
@@ -1983,14 +1995,6 @@ EXPORT_SYMBOL_GPL(kvm_disable_tdp);

static void free_mmu_pages(struct kvm_vcpu *vcpu)
{
- struct kvm_mmu_page *sp;
-
- while (!list_empty(&vcpu->kvm->arch.active_mmu_pages)) {
- sp = container_of(vcpu->kvm->arch.active_mmu_pages.next,
- struct kvm_mmu_page, link);
- kvm_mmu_zap_page(vcpu->kvm, sp);
- cond_resched();
- }
free_page((unsigned long)vcpu->arch.mmu.pae_root);
}

@@ -2068,6 +2072,7 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot)
if (pt[i] & PT_WRITABLE_MASK)
pt[i] &= ~PT_WRITABLE_MASK;
}
+ kvm_flush_remote_tlbs(kvm);
}

void kvm_mmu_zap_all(struct kvm *kvm)
@@ -2237,7 +2242,7 @@ static int kvm_pv_mmu_write(struct kvm_vcpu *vcpu,

static int kvm_pv_mmu_flush_tlb(struct kvm_vcpu *vcpu)
{
- kvm_x86_ops->tlb_flush(vcpu);
+ kvm_set_cr3(vcpu, vcpu->arch.cr3);
return 1;
}

@@ -2291,18 +2296,18 @@ int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes,
gpa_t addr, unsigned long *ret)
{
int r;
- struct kvm_pv_mmu_op_buffer buffer;
+ struct kvm_pv_mmu_op_buffer *buffer = &vcpu->arch.mmu_op_buffer;

- buffer.ptr = buffer.buf;
- buffer.len = min_t(unsigned long, bytes, sizeof buffer.buf);
- buffer.processed = 0;
+ buffer->ptr = buffer->buf;
+ buffer->len = min_t(unsigned long, bytes, sizeof buffer->buf);
+ buffer->processed = 0;

- r = kvm_read_guest(vcpu->kvm, addr, buffer.buf, buffer.len);
+ r = kvm_read_guest(vcpu->kvm, addr, buffer->buf, buffer->len);
if (r)
goto out;

- while (buffer.len) {
- r = kvm_pv_mmu_op_one(vcpu, &buffer);
+ while (buffer->len) {
+ r = kvm_pv_mmu_op_one(vcpu, buffer);
if (r < 0)
goto out;
if (r == 0)
@@ -2311,7 +2316,7 @@ int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes,

r = 1;
out:
- *ret = buffer.processed;
+ *ret = buffer->processed;
return r;
}

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 8233b86..77cae01 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -429,7 +429,6 @@ static __init int svm_hardware_setup(void)

iopm_va = page_address(iopm_pages);
memset(iopm_va, 0xff, PAGE_SIZE * (1 << IOPM_ALLOC_ORDER));
- clear_bit(0x80, iopm_va); /* allow direct access to PC debug port */
iopm_base = page_to_pfn(iopm_pages) << PAGE_SHIFT;

if (boot_cpu_has(X86_FEATURE_NX))
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7041cc5..4cee61a 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -898,11 +898,11 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
int ret = 0;

switch (msr_index) {
-#ifdef CONFIG_X86_64
case MSR_EFER:
vmx_load_host_state(vmx);
ret = kvm_set_msr_common(vcpu, msr_index, data);
break;
+#ifdef CONFIG_X86_64
case MSR_FS_BASE:
vmcs_writel(GUEST_FS_BASE, data);
break;
@@ -1789,7 +1789,7 @@ static void seg_setup(int seg)
vmcs_write16(sf->selector, 0);
vmcs_writel(sf->base, 0);
vmcs_write32(sf->limit, 0xffff);
- vmcs_write32(sf->ar_bytes, 0x93);
+ vmcs_write32(sf->ar_bytes, 0xf3);
}

static int alloc_apic_access_page(struct kvm *kvm)
@@ -2036,6 +2036,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)

fx_init(&vmx->vcpu);

+ seg_setup(VCPU_SREG_CS);
/*
* GUEST_CS_BASE should really be 0xffff0000, but VT vm86 mode
* insists on having GUEST_CS_BASE == GUEST_CS_SELECTOR << 4. Sigh.
@@ -2047,8 +2048,6 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmcs_write16(GUEST_CS_SELECTOR, vmx->vcpu.arch.sipi_vector << 8);
vmcs_writel(GUEST_CS_BASE, vmx->vcpu.arch.sipi_vector << 12);
}
- vmcs_write32(GUEST_CS_LIMIT, 0xffff);
- vmcs_write32(GUEST_CS_AR_BYTES, 0x9b);

seg_setup(VCPU_SREG_DS);
seg_setup(VCPU_SREG_ES);
@@ -2583,6 +2582,12 @@ static int handle_vmcall(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
return 1;
}

+static int handle_vmx_insn(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
+{
+ kvm_queue_exception(vcpu, UD_VECTOR);
+ return 1;
+}
+
static int handle_wbinvd(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
{
skip_emulated_instruction(vcpu);
@@ -2715,6 +2720,15 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu,
[EXIT_REASON_PENDING_INTERRUPT] = handle_interrupt_window,
[EXIT_REASON_HLT] = handle_halt,
[EXIT_REASON_VMCALL] = handle_vmcall,
+ [EXIT_REASON_VMCLEAR] = handle_vmx_insn,
+ [EXIT_REASON_VMLAUNCH] = handle_vmx_insn,
+ [EXIT_REASON_VMPTRLD] = handle_vmx_insn,
+ [EXIT_REASON_VMPTRST] = handle_vmx_insn,
+ [EXIT_REASON_VMREAD] = handle_vmx_insn,
+ [EXIT_REASON_VMRESUME] = handle_vmx_insn,
+ [EXIT_REASON_VMWRITE] = handle_vmx_insn,
+ [EXIT_REASON_VMOFF] = handle_vmx_insn,
+ [EXIT_REASON_VMON] = handle_vmx_insn,
[EXIT_REASON_TPR_BELOW_THRESHOLD] = handle_tpr_below_threshold,
[EXIT_REASON_APIC_ACCESS] = handle_apic_access,
[EXIT_REASON_WBINVD] = handle_wbinvd,
@@ -3300,7 +3314,8 @@ static int __init vmx_init(void)
bypass_guest_pf = 0;
kvm_mmu_set_base_ptes(VMX_EPT_READABLE_MASK |
VMX_EPT_WRITABLE_MASK |
- VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT);
+ VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT |
+ VMX_EPT_IGMT_BIT);
kvm_mmu_set_mask_ptes(0ull, 0ull, 0ull, 0ull,
VMX_EPT_EXECUTABLE_MASK);
kvm_enable_tdp();
diff --git a/arch/x86/kvm/vmx.h b/arch/x86/kvm/vmx.h
index 23e8373..198cdf3 100644
--- a/arch/x86/kvm/vmx.h
+++ b/arch/x86/kvm/vmx.h
@@ -370,6 +370,7 @@ enum vmcs_field {
#define VMX_EPT_READABLE_MASK 0x1ull
#define VMX_EPT_WRITABLE_MASK 0x2ull
#define VMX_EPT_EXECUTABLE_MASK 0x4ull
+#define VMX_EPT_IGMT_BIT (1ull << 6)

#define VMX_EPT_IDENTITY_PAGETABLE_ADDR 0xfffbc000ul

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0d682fc..f7c7142 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -318,6 +318,9 @@ EXPORT_SYMBOL_GPL(kvm_lmsw);

void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
{
+ unsigned long old_cr4 = vcpu->arch.cr4;
+ unsigned long pdptr_bits = X86_CR4_PGE | X86_CR4_PSE | X86_CR4_PAE;
+
if (cr4 & CR4_RESERVED_BITS) {
printk(KERN_DEBUG "set_cr4: #GP, reserved bits\n");
kvm_inject_gp(vcpu, 0);
@@ -331,7 +334,8 @@ void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
kvm_inject_gp(vcpu, 0);
return;
}
- } else if (is_paging(vcpu) && !is_pae(vcpu) && (cr4 & X86_CR4_PAE)
+ } else if (is_paging(vcpu) && (cr4 & X86_CR4_PAE)
+ && ((cr4 ^ old_cr4) & pdptr_bits)
&& !load_pdptrs(vcpu, vcpu->arch.cr3)) {
printk(KERN_DEBUG "set_cr4: #GP, pdptrs reserved bits\n");
kvm_inject_gp(vcpu, 0);
@@ -752,6 +756,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
case MSR_IA32_MC0_MISC+8:
case MSR_IA32_MC0_MISC+12:
case MSR_IA32_MC0_MISC+16:
+ case MSR_IA32_MC0_MISC+20:
case MSR_IA32_UCODE_REV:
case MSR_IA32_EBL_CR_POWERON:
data = 0;
@@ -982,9 +987,9 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)

static int is_efer_nx(void)
{
- u64 efer;
+ unsigned long long efer = 0;

- rdmsrl(MSR_EFER, efer);
+ rdmsrl_safe(MSR_EFER, &efer);
return efer & EFER_NX;
}

@@ -1303,28 +1308,33 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
struct kvm_vcpu *vcpu = filp->private_data;
void __user *argp = (void __user *)arg;
int r;
+ struct kvm_lapic_state *lapic = NULL;

switch (ioctl) {
case KVM_GET_LAPIC: {
- struct kvm_lapic_state lapic;
+ lapic = kzalloc(sizeof(struct kvm_lapic_state), GFP_KERNEL);

- memset(&lapic, 0, sizeof lapic);
- r = kvm_vcpu_ioctl_get_lapic(vcpu, &lapic);
+ r = -ENOMEM;
+ if (!lapic)
+ goto out;
+ r = kvm_vcpu_ioctl_get_lapic(vcpu, lapic);
if (r)
goto out;
r = -EFAULT;
- if (copy_to_user(argp, &lapic, sizeof lapic))
+ if (copy_to_user(argp, lapic, sizeof(struct kvm_lapic_state)))
goto out;
r = 0;
break;
}
case KVM_SET_LAPIC: {
- struct kvm_lapic_state lapic;
-
+ lapic = kmalloc(sizeof(struct kvm_lapic_state), GFP_KERNEL);
+ r = -ENOMEM;
+ if (!lapic)
+ goto out;
r = -EFAULT;
- if (copy_from_user(&lapic, argp, sizeof lapic))
+ if (copy_from_user(lapic, argp, sizeof(struct kvm_lapic_state)))
goto out;
- r = kvm_vcpu_ioctl_set_lapic(vcpu, &lapic);;
+ r = kvm_vcpu_ioctl_set_lapic(vcpu, lapic);
if (r)
goto out;
r = 0;
@@ -1422,6 +1432,8 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
r = -EINVAL;
}
out:
+ if (lapic)
+ kfree(lapic);
return r;
}

@@ -1442,10 +1454,12 @@ static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm,
return -EINVAL;

down_write(&kvm->slots_lock);
+ spin_lock(&kvm->mmu_lock);

kvm_mmu_change_mmu_pages(kvm, kvm_nr_mmu_pages);
kvm->arch.n_requested_mmu_pages = kvm_nr_mmu_pages;

+ spin_unlock(&kvm->mmu_lock);
up_write(&kvm->slots_lock);
return 0;
}
@@ -1612,7 +1626,9 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,

/* If nothing is dirty, don't bother messing with page tables. */
if (is_dirty) {
+ spin_lock(&kvm->mmu_lock);
kvm_mmu_slot_remove_write_access(kvm, log->slot);
+ spin_unlock(&kvm->mmu_lock);
kvm_flush_remote_tlbs(kvm);
memslot = &kvm->memslots[log->slot];
n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
@@ -1630,6 +1646,15 @@ long kvm_arch_vm_ioctl(struct file *filp,
struct kvm *kvm = filp->private_data;
void __user *argp = (void __user *)arg;
int r = -EINVAL;
+ /*
+ * This union makes it completely explicit to gcc-3.x
+ * that these two variables' stack usage should be
+ * combined, not added together.
+ */
+ union {
+ struct kvm_pit_state ps;
+ struct kvm_memory_alias alias;
+ } u;

switch (ioctl) {
case KVM_SET_TSS_ADDR:
@@ -1661,17 +1686,14 @@ long kvm_arch_vm_ioctl(struct file *filp,
case KVM_GET_NR_MMU_PAGES:
r = kvm_vm_ioctl_get_nr_mmu_pages(kvm);
break;
- case KVM_SET_MEMORY_ALIAS: {
- struct kvm_memory_alias alias;
-
+ case KVM_SET_MEMORY_ALIAS:
r = -EFAULT;
- if (copy_from_user(&alias, argp, sizeof alias))
+ if (copy_from_user(&u.alias, argp, sizeof(struct kvm_memory_alias)))
goto out;
- r = kvm_vm_ioctl_set_memory_alias(kvm, &alias);
+ r = kvm_vm_ioctl_set_memory_alias(kvm, &u.alias);
if (r)
goto out;
break;
- }
case KVM_CREATE_IRQCHIP:
r = -ENOMEM;
kvm->arch.vpic = kvm_create_pic(kvm);
@@ -1713,65 +1735,77 @@ long kvm_arch_vm_ioctl(struct file *filp,
}
case KVM_GET_IRQCHIP: {
/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
- struct kvm_irqchip chip;
+ struct kvm_irqchip *chip = kmalloc(sizeof(*chip), GFP_KERNEL);

- r = -EFAULT;
- if (copy_from_user(&chip, argp, sizeof chip))
+ r = -ENOMEM;
+ if (!chip)
goto out;
+ r = -EFAULT;
+ if (copy_from_user(chip, argp, sizeof *chip))
+ goto get_irqchip_out;
r = -ENXIO;
if (!irqchip_in_kernel(kvm))
- goto out;
- r = kvm_vm_ioctl_get_irqchip(kvm, &chip);
+ goto get_irqchip_out;
+ r = kvm_vm_ioctl_get_irqchip(kvm, chip);
if (r)
- goto out;
+ goto get_irqchip_out;
r = -EFAULT;
- if (copy_to_user(argp, &chip, sizeof chip))
- goto out;
+ if (copy_to_user(argp, chip, sizeof *chip))
+ goto get_irqchip_out;
r = 0;
+ get_irqchip_out:
+ kfree(chip);
+ if (r)
+ goto out;
break;
}
case KVM_SET_IRQCHIP: {
/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
- struct kvm_irqchip chip;
+ struct kvm_irqchip *chip = kmalloc(sizeof(*chip), GFP_KERNEL);

- r = -EFAULT;
- if (copy_from_user(&chip, argp, sizeof chip))
+ r = -ENOMEM;
+ if (!chip)
goto out;
+ r = -EFAULT;
+ if (copy_from_user(chip, argp, sizeof *chip))
+ goto set_irqchip_out;
r = -ENXIO;
if (!irqchip_in_kernel(kvm))
- goto out;
- r = kvm_vm_ioctl_set_irqchip(kvm, &chip);
+ goto set_irqchip_out;
+ r = kvm_vm_ioctl_set_irqchip(kvm, chip);
if (r)
- goto out;
+ goto set_irqchip_out;
r = 0;
+ set_irqchip_out:
+ kfree(chip);
+ if (r)
+ goto out;
break;
}
case KVM_GET_PIT: {
- struct kvm_pit_state ps;
r = -EFAULT;
- if (copy_from_user(&ps, argp, sizeof ps))
+ if (copy_from_user(&u.ps, argp, sizeof(struct kvm_pit_state)))
goto out;
r = -ENXIO;
if (!kvm->arch.vpit)
goto out;
- r = kvm_vm_ioctl_get_pit(kvm, &ps);
+ r = kvm_vm_ioctl_get_pit(kvm, &u.ps);
if (r)
goto out;
r = -EFAULT;
- if (copy_to_user(argp, &ps, sizeof ps))
+ if (copy_to_user(argp, &u.ps, sizeof(struct kvm_pit_state)))
goto out;
r = 0;
break;
}
case KVM_SET_PIT: {
- struct kvm_pit_state ps;
r = -EFAULT;
- if (copy_from_user(&ps, argp, sizeof ps))
+ if (copy_from_user(&u.ps, argp, sizeof u.ps))
goto out;
r = -ENXIO;
if (!kvm->arch.vpit)
goto out;
- r = kvm_vm_ioctl_set_pit(kvm, &ps);
+ r = kvm_vm_ioctl_set_pit(kvm, &u.ps);
if (r)
goto out;
r = 0;
@@ -2813,10 +2847,6 @@ static int __vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
down_read(&vcpu->kvm->slots_lock);
vapic_enter(vcpu);

-preempted:
- if (vcpu->guest_debug.enabled)
- kvm_x86_ops->guest_debug_pre(vcpu);
-
again:
if (vcpu->requests)
if (test_and_clear_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests))
@@ -2870,6 +2900,9 @@ again:
goto out;
}

+ if (vcpu->guest_debug.enabled)
+ kvm_x86_ops->guest_debug_pre(vcpu);
+
vcpu->guest_mode = 1;
/*
* Make sure that guest_mode assignment won't happen after
@@ -2944,7 +2977,7 @@ out:
if (r > 0) {
kvm_resched(vcpu);
down_read(&vcpu->kvm->slots_lock);
- goto preempted;
+ goto again;
}

post_kvm_run_save(vcpu, kvm_run);
@@ -3294,11 +3327,33 @@ static int load_segment_descriptor_to_kvm_desct(struct kvm_vcpu *vcpu,
return 0;
}

+int kvm_load_realmode_segment(struct kvm_vcpu *vcpu, u16 selector, int seg)
+{
+ struct kvm_segment segvar = {
+ .base = selector << 4,
+ .limit = 0xffff,
+ .selector = selector,
+ .type = 3,
+ .present = 1,
+ .dpl = 3,
+ .db = 0,
+ .s = 1,
+ .l = 0,
+ .g = 0,
+ .avl = 0,
+ .unusable = 0,
+ };
+ kvm_x86_ops->set_segment(vcpu, &segvar, seg);
+ return 0;
+}
+
int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector,
int type_bits, int seg)
{
struct kvm_segment kvm_seg;

+ if (!(vcpu->arch.cr0 & X86_CR0_PE))
+ return kvm_load_realmode_segment(vcpu, selector, seg);
if (load_segment_descriptor_to_kvm_desct(vcpu, selector, &kvm_seg))
return 1;
kvm_seg.type |= type_bits;
@@ -3981,7 +4036,7 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
userspace_addr = do_mmap(NULL, 0,
npages * PAGE_SIZE,
PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_ANONYMOUS,
+ MAP_PRIVATE | MAP_ANONYMOUS,
0);
up_write(&current->mm->mmap_sem);

@@ -4008,12 +4063,14 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
}
}

+ spin_lock(&kvm->mmu_lock);
if (!kvm->arch.n_requested_mmu_pages) {
unsigned int nr_mmu_pages = kvm_mmu_calculate_mmu_pages(kvm);
kvm_mmu_change_mmu_pages(kvm, nr_mmu_pages);
}

kvm_mmu_slot_remove_write_access(kvm, mem->slot);
+ spin_unlock(&kvm->mmu_lock);
kvm_flush_remote_tlbs(kvm);

return 0;
@@ -4022,6 +4079,7 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
void kvm_arch_flush_shadow(struct kvm *kvm)
{
kvm_mmu_zap_all(kvm);
+ kvm_reload_remote_mmus(kvm);
}

int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index ebda9a8..3340c62 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -1099,8 +1099,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
if (retval)
return retval;

- /* unmark here for very high baud rate (ex. 921600 bps) used */
- tty->low_latency = 1;
return 0;
}

diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
index 66a0f93..4dfb5a1 100644
--- a/drivers/char/nozomi.c
+++ b/drivers/char/nozomi.c
@@ -1584,7 +1584,6 @@ static int ntty_open(struct tty_struct *tty, struct file *file)

/* Enable interrupt downlink for channel */
if (port->tty_open_count == 1) {
- tty->low_latency = 1;
tty->driver_data = port;
port->tty = tty;
DBG1("open: %d", port->token_dl);
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index a6e730f..682f411 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -1530,6 +1530,9 @@ static int ehea_clean_portres(struct ehea_port *port, struct ehea_port_res *pr)
{
int ret, i;

+ if (pr->qp)
+ netif_napi_del(&pr->napi);
+
ret = ehea_destroy_qp(pr->qp);

if (!ret) {
diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index a8a62bb..a592f29 100644
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -614,7 +614,10 @@ parport_register_device(struct parport *port, const char *name,
* pardevice fields. -arca
*/
port->ops->init_state(tmp, tmp->state);
- parport_device_proc_register(tmp);
+ if (!test_and_set_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags)) {
+ port->proc_device = tmp;
+ parport_device_proc_register(tmp);
+ }
return tmp;

out_free_all:
@@ -646,10 +649,14 @@ void parport_unregister_device(struct pardevice *dev)
}
#endif

- parport_device_proc_unregister(dev);
-
port = dev->port->physport;

+ if (port->proc_device == dev) {
+ port->proc_device = NULL;
+ clear_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags);
+ parport_device_proc_unregister(dev);
+ }
+
if (port->cad == dev) {
printk(KERN_DEBUG "%s: %s forgot to release port\n",
port->name, dev->name);
diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c
index ae87d08..25f2008 100644
--- a/drivers/scsi/sr_ioctl.c
+++ b/drivers/scsi/sr_ioctl.c
@@ -309,6 +309,11 @@ int sr_drive_status(struct cdrom_device_info *cdi, int slot)
if (0 == sr_test_unit_ready(cd->device, &sshdr))
return CDS_DISC_OK;

+ /* SK/ASC/ASCQ of 2/4/1 means "unit is becoming ready" */
+ if (scsi_sense_valid(&sshdr) && sshdr.sense_key == NOT_READY
+ && sshdr.asc == 0x04 && sshdr.ascq == 0x01)
+ return CDS_DRIVE_NOT_READY;
+
if (!cdrom_get_media_event(cdi, &med)) {
if (med.media_present)
return CDS_DISC_OK;
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index b4d7235..7b3df8e 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -174,13 +174,6 @@ static int cyberjack_open(struct tty_struct *tty,
dbg("%s - usb_clear_halt", __func__);
usb_clear_halt(port->serial->dev, port->write_urb->pipe);

- /* force low_latency on so that our tty_push actually forces
- * the data through, otherwise it is scheduled, and with high
- * data rates (like with OHCI) data can get lost.
- */
- if (tty)
- tty->low_latency = 1;
-
priv = usb_get_serial_port_data(port);
spin_lock_irqsave(&priv->lock, flags);
priv->rdtodo = 0;
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 22837a3..7eb473b 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -655,10 +655,6 @@ static int cypress_open(struct tty_struct *tty,
priv->rx_flags = 0;
spin_unlock_irqrestore(&priv->lock, flags);

- /* setting to zero could cause data loss */
- if (tty)
- tty->low_latency = 1;
-
/* raise both lines and set termios */
spin_lock_irqsave(&priv->lock, flags);
priv->line_control = CONTROL_DTR | CONTROL_RTS;
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index a6ab5b5..28ee28c 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -478,12 +478,6 @@ static void empeg_set_termios(struct tty_struct *tty,
termios->c_cflag
|= CS8; /* character size 8 bits */

- /*
- * Force low_latency on; otherwise the pushes are scheduled;
- * this is bad as it opens up the possibility of dropping bytes
- * on the floor. We don't want to drop bytes on the floor. :)
- */
- tty->low_latency = 1;
tty_encode_baud_rate(tty, 115200, 115200);
}

diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index d953820..d860071 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -972,14 +972,6 @@ static int garmin_open(struct tty_struct *tty,

dbg("%s - port %d", __func__, port->number);

- /*
- * Force low_latency on so that our tty_push actually forces the data
- * through, otherwise it is scheduled, and with high data rates (like
- * with OHCI) data can get lost.
- */
- if (tty)
- tty->low_latency = 1;
-
spin_lock_irqsave(&garmin_data_p->lock, flags);
garmin_data_p->mode = initial_mode;
garmin_data_p->count = 0;
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index fe84c88..aa7f08b 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -122,12 +122,6 @@ int usb_serial_generic_open(struct tty_struct *tty,

dbg("%s - port %d", __func__, port->number);

- /* force low_latency on so that our tty_push actually forces the data
- through, otherwise it is scheduled, and with high data rates (like
- with OHCI) data can get lost. */
- if (tty)
- tty->low_latency = 1;
-
/* clear the throttle flags */
spin_lock_irqsave(&port->lock, flags);
port->throttled = 0;
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index bfa508d..183045a 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -193,8 +193,6 @@ static const struct divisor_table_entry divisor_table[] = {
/* local variables */
static int debug;

-static int low_latency = 1; /* tty low latency flag, on by default */
-
static atomic_t CmdUrbs; /* Number of outstanding Command Write Urbs */

@@ -861,9 +859,6 @@ static int edge_open(struct tty_struct *tty,
if (edge_port == NULL)
return -ENODEV;

- if (tty)
- tty->low_latency = low_latency;
-
/* see if we've set up our endpoint info yet (can't set it up
in edge_startup as the structures were not set up at that time.) */
serial = port->serial;
@@ -3281,6 +3276,3 @@ MODULE_FIRMWARE("edgeport/down2.fw");

module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug enabled or not");
-
-module_param(low_latency, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(low_latency, "Low latency enabled or not");
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index cb4c543..0d744f0 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -76,7 +76,6 @@ struct edgeport_uart_buf_desc {
#define EDGE_READ_URB_STOPPING 1
#define EDGE_READ_URB_STOPPED 2

-#define EDGE_LOW_LATENCY 1
#define EDGE_CLOSING_WAIT 4000 /* in .01 sec */

#define EDGE_OUT_BUF_SIZE 1024
@@ -232,7 +231,6 @@ static unsigned short OperationalBuildNumber;

static int debug;

-static int low_latency = EDGE_LOW_LATENCY;
static int closing_wait = EDGE_CLOSING_WAIT;
static int ignore_cpu_rev;
static int default_uart_mode; /* RS232 */
@@ -1838,9 +1836,6 @@ static int edge_open(struct tty_struct *tty,
if (edge_port == NULL)
return -ENODEV;

- if (tty)
- tty->low_latency = low_latency;
-
port_number = port->number - port->serial->minor;
switch (port_number) {
case 0:
@@ -2995,9 +2990,6 @@ MODULE_FIRMWARE("edgeport/down3.bin");
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug enabled or not");

-module_param(low_latency, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(low_latency, "Low latency enabled or not");
-
module_param(closing_wait, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs");

diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index cd9a2e1..ae0b0ff 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -635,13 +635,7 @@ static int ipaq_open(struct tty_struct *tty,
priv->free_len += PACKET_SIZE;
}

- /*
- * Force low latency on. This will immediately push data to the line
- * discipline instead of queueing.
- */
-
if (tty) {
- tty->low_latency = 1;
/* FIXME: These two are bogus */
tty->raw = 1;
tty->real_raw = 1;
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index a842025..b1c0c9a 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -206,9 +206,6 @@ static int ipw_open(struct tty_struct *tty,
if (!buf_flow_init)
return -ENOMEM;

- if (tty)
- tty->low_latency = 1;
-
/* --1: Tell the modem to initialize (we think) From sniffs this is
* always the first thing that gets sent to the modem during
* opening of the device */
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index ddff37f..d6da4c9 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -1046,7 +1046,6 @@ static int iuu_open(struct tty_struct *tty,
tty->termios->c_oflag = 0;
tty->termios->c_iflag = 0;
priv->termios_initialized = 1;
- tty->low_latency = 1;
priv->poll = 0;
}
spin_unlock_irqrestore(&priv->lock, flags);
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index deba28e..5326c59 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -231,13 +231,7 @@ static int kobil_open(struct tty_struct *tty,
/* someone sets the dev to 0 if the close method has been called */
port->interrupt_in_urb->dev = port->serial->dev;

-
- /* force low_latency on so that our tty_push actually forces
- * the data through, otherwise it is scheduled, and with high
- * data rates (like with OHCI) data can get lost.
- */
if (tty) {
- tty->low_latency = 1;

/* Default to echo off and other sane device settings */
tty->termios->c_lflag = 0;
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 7c4917d..1c2402d 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -442,13 +442,6 @@ static int mos7720_open(struct tty_struct *tty,
data = 0x0c;
send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);

- /* force low_latency on so that our tty_push actually forces *
- * the data through,otherwise it is scheduled, and with *
- * high data rates (like with OHCI) data can get lost. */
-
- if (tty)
- tty->low_latency = 1;
-
/* see if we've set up our endpoint info yet *
* (can't set it up in mos7720_startup as the *
* structures were not set up at that time.) */
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 09d8206..8befcbb 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -990,12 +990,6 @@ static int mos7840_open(struct tty_struct *tty,
status = mos7840_set_reg_sync(port, mos7840_port->ControlRegOffset,
Data);

- /* force low_latency on so that our tty_push actually forces *
- * the data through,otherwise it is scheduled, and with *
- * high data rates (like with OHCI) data can get lost. */
- if (tty)
- tty->low_latency = 1;
-
/* Check to see if we've set up our endpoint info yet *
* (can't set it up in mos7840_startup as the structures *
* were not set up at that time.) */
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 211cd61..faa30ad 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -914,9 +914,6 @@ static int option_open(struct tty_struct *tty,
usb_pipeout(urb->pipe), 0); */
}

- if (tty)
- tty->low_latency = 1;
-
option_send_setup(tty, port);

return 0;
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index ea1a103..639328b 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -576,9 +576,6 @@ static int sierra_open(struct tty_struct *tty,
}
}

- if (tty)
- tty->low_latency = 1;
-
sierra_send_setup(tty, port);

/* start up the interrupt endpoint if we have one */
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index bc5e905..55b9d67 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -101,11 +101,10 @@

#define TI_TRANSFER_TIMEOUT 2

-#define TI_DEFAULT_LOW_LATENCY 0
#define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */

/* supported setserial flags */
-#define TI_SET_SERIAL_FLAGS (ASYNC_LOW_LATENCY)
+#define TI_SET_SERIAL_FLAGS 0

/* read urb states */
#define TI_READ_URB_RUNNING 0
@@ -212,7 +211,6 @@ static int ti_buf_get(struct circ_buf *cb, char *buf, int count);

/* module parameters */
static int debug;
-static int low_latency = TI_DEFAULT_LOW_LATENCY;
static int closing_wait = TI_DEFAULT_CLOSING_WAIT;
static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT];
static unsigned int vendor_3410_count;
@@ -333,10 +331,6 @@ MODULE_FIRMWARE("ti_5052.fw");
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes");

-module_param(low_latency, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(low_latency,
- "TTY low_latency flag, 0=off, 1=on, default is off");
-
module_param(closing_wait, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(closing_wait,
"Maximum wait for data to drain in close, in .01 secs, default is 4000");
@@ -480,7 +474,6 @@ static int ti_startup(struct usb_serial *serial)
spin_lock_init(&tport->tp_lock);
tport->tp_uart_base_addr = (i == 0 ?
TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR);
- tport->tp_flags = low_latency ? ASYNC_LOW_LATENCY : 0;
tport->tp_closing_wait = closing_wait;
init_waitqueue_head(&tport->tp_msr_wait);
init_waitqueue_head(&tport->tp_write_wait);
@@ -560,10 +553,6 @@ static int ti_open(struct tty_struct *tty,
if (mutex_lock_interruptible(&tdev->td_open_close_lock))
return -ERESTARTSYS;

- if (tty)
- tty->low_latency =
- (tport->tp_flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
port_number = port->number - port->serial->minor;

memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount));
@@ -1480,10 +1469,6 @@ static int ti_set_serial_info(struct ti_port *tport,
return -EFAULT;

tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS;
- /* FIXME */
- if (port->port.tty)
- port->port.tty->low_latency =
- (tport->tp_flags & ASYNC_LOW_LATENCY) ? 1 : 0;
tport->tp_closing_wait = new_serial.closing_wait;

return 0;
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index cf8924f..ec33fa5 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -296,14 +296,6 @@ static int visor_open(struct tty_struct *tty, struct usb_serial_port *port,
priv->throttled = 0;
spin_unlock_irqrestore(&priv->lock, flags);

- /*
- * Force low_latency on so that our tty_push actually forces the data
- * through, otherwise it is scheduled, and with high data rates (like
- * with OHCI) data can get lost.
- */
- if (tty)
- tty->low_latency = 1;
-
/* Start reading from the device */
usb_fill_bulk_urb(port->read_urb, serial->dev,
usb_rcvbulkpipe(serial->dev,
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index a53da14..0f04b70 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -908,18 +908,17 @@ struct ocfs2_write_cluster_desc {
*/
unsigned c_new;
unsigned c_unwritten;
+ unsigned c_needs_zero;
};

-static inline int ocfs2_should_zero_cluster(struct ocfs2_write_cluster_desc *d)
-{
- return d->c_new || d->c_unwritten;
-}
-
struct ocfs2_write_ctxt {
/* Logical cluster position / len of write */
u32 w_cpos;
u32 w_clen;

+ /* First cluster allocated in a nonsparse extend */
+ u32 w_first_new_cpos;
+
struct ocfs2_write_cluster_desc w_desc[OCFS2_MAX_CLUSTERS_PER_PAGE];

/*
@@ -997,6 +996,7 @@ static int ocfs2_alloc_write_ctxt(struct ocfs2_write_ctxt **wcp,
return -ENOMEM;

wc->w_cpos = pos >> osb->s_clustersize_bits;
+ wc->w_first_new_cpos = UINT_MAX;
cend = (pos + len - 1) >> osb->s_clustersize_bits;
wc->w_clen = cend - wc->w_cpos + 1;
get_bh(di_bh);
@@ -1239,13 +1239,11 @@ static int ocfs2_write_cluster(struct address_space *mapping,
struct ocfs2_write_ctxt *wc, u32 cpos,
loff_t user_pos, unsigned user_len)
{
- int ret, i, new, should_zero = 0;
+ int ret, i, new;
u64 v_blkno, p_blkno;
struct inode *inode = mapping->host;

new = phys == 0 ? 1 : 0;
- if (new || unwritten)
- should_zero = 1;

if (new) {
u32 tmp_pos;
@@ -1356,7 +1354,9 @@ static int ocfs2_write_cluster_by_desc(struct address_space *mapping,
local_len = osb->s_clustersize - cluster_off;

ret = ocfs2_write_cluster(mapping, desc->c_phys,
- desc->c_unwritten, data_ac, meta_ac,
+ desc->c_unwritten,
+ desc->c_needs_zero,
+ data_ac, meta_ac,
wc, desc->c_cpos, pos, local_len);
if (ret) {
mlog_errno(ret);
@@ -1406,14 +1406,14 @@ static void ocfs2_set_target_boundaries(struct ocfs2_super *osb,
* newly allocated cluster.
*/
desc = &wc->w_desc[0];
- if (ocfs2_should_zero_cluster(desc))
+ if (desc->c_needs_zero)
ocfs2_figure_cluster_boundaries(osb,
desc->c_cpos,
&wc->w_target_from,
NULL);

desc = &wc->w_desc[wc->w_clen - 1];
- if (ocfs2_should_zero_cluster(desc))
+ if (desc->c_needs_zero)
ocfs2_figure_cluster_boundaries(osb,
desc->c_cpos,
NULL,
@@ -1481,13 +1481,28 @@ static int ocfs2_populate_write_desc(struct inode *inode,
phys++;
}

+ /*
+ * If w_first_new_cpos is < UINT_MAX, we have a non-sparse
+ * file that got extended. w_first_new_cpos tells us
+ * where the newly allocated clusters are so we can
+ * zero them.
+ */
+ if (desc->c_cpos >= wc->w_first_new_cpos) {
+ BUG_ON(phys == 0);
+ desc->c_needs_zero = 1;
+ }
+
desc->c_phys = phys;
if (phys == 0) {
desc->c_new = 1;
+ desc->c_needs_zero = 1;
*clusters_to_alloc = *clusters_to_alloc + 1;
}
- if (ext_flags & OCFS2_EXT_UNWRITTEN)
+
+ if (ext_flags & OCFS2_EXT_UNWRITTEN) {
desc->c_unwritten = 1;
+ desc->c_needs_zero = 1;
+ }

num_clusters--;
}
@@ -1644,10 +1659,13 @@ static int ocfs2_expand_nonsparse_inode(struct inode *inode, loff_t pos,
if (newsize <= i_size_read(inode))
return 0;

- ret = ocfs2_extend_no_holes(inode, newsize, newsize - len);
+ ret = ocfs2_extend_no_holes(inode, newsize, pos);
if (ret)
mlog_errno(ret);

+ wc->w_first_new_cpos =
+ ocfs2_clusters_for_bytes(inode->i_sb, i_size_read(inode));
+
return ret;
}

@@ -1656,7 +1674,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
struct page **pagep, void **fsdata,
struct buffer_head *di_bh, struct page *mmap_page)
{
- int ret, credits = OCFS2_INODE_UPDATE_CREDITS;
+ int ret, cluster_of_pages, credits = OCFS2_INODE_UPDATE_CREDITS;
unsigned int clusters_to_alloc, extents_to_split;
struct ocfs2_write_ctxt *wc;
struct inode *inode = mapping->host;
@@ -1724,8 +1742,19 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,

}

- ocfs2_set_target_boundaries(osb, wc, pos, len,
- clusters_to_alloc + extents_to_split);
+ /*
+ * We have to zero sparse allocated clusters, unwritten extent clusters,
+ * and non-sparse clusters we just extended. For non-sparse writes,
+ * we know zeros will only be needed in the first and/or last cluster.
+ */
+ if (clusters_to_alloc || extents_to_split ||
+ (wc->w_clen && (wc->w_desc[0].c_needs_zero ||
+ wc->w_desc[wc->w_clen - 1].c_needs_zero)))
+ cluster_of_pages = 1;
+ else
+ cluster_of_pages = 0;
+
+ ocfs2_set_target_boundaries(osb, wc, pos, len, cluster_of_pages);

handle = ocfs2_start_trans(osb, credits);
if (IS_ERR(handle)) {
@@ -1753,8 +1782,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
* extent.
*/
ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos,
- clusters_to_alloc + extents_to_split,
- mmap_page);
+ cluster_of_pages, mmap_page);
if (ret) {
mlog_errno(ret);
goto out_commit;
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index c2e34c2..cf7c887 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -195,6 +195,13 @@ struct kvm_mmu_page {
};
};

+struct kvm_pv_mmu_op_buffer {
+ void *ptr;
+ unsigned len;
+ unsigned processed;
+ char buf[512] __aligned(sizeof(long));
+};
+
/*
* x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
* 32-bit). The kvm_mmu structure abstracts the details of the current mmu
@@ -237,6 +244,9 @@ struct kvm_vcpu_arch {
bool tpr_access_reporting;

struct kvm_mmu mmu;
+ /* only needed in kvm_pv_mmu_op() path, but it's hot so
+ * put it here to avoid allocation */
+ struct kvm_pv_mmu_op_buffer mmu_op_buffer;

struct kvm_mmu_memory_cache mmu_pte_chain_cache;
struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
diff --git a/include/linux/parport.h b/include/linux/parport.h
index 6a0d7cd..986252e 100644
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -326,6 +326,10 @@ struct parport {
int spintime;
atomic_t ref_count;

+ unsigned long devflags;
+#define PARPORT_DEVPROC_REGISTERED 0
+ struct pardevice *proc_device; /* Currently register proc device */
+
struct list_head full_list;
struct parport *slaves[3];
};
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 4d80a11..75a87fe 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -260,6 +260,7 @@ void xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie);
#define XPRT_BOUND (4)
#define XPRT_BINDING (5)
#define XPRT_CLOSING (6)
+#define XPRT_CONNECTION_CLOSE (8)

static inline void xprt_set_connected(struct rpc_xprt *xprt)
{
diff --git a/kernel/fork.c b/kernel/fork.c
index fcbd28c..3fdf3d5 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -767,11 +767,9 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
struct signal_struct *sig;
int ret;

- if (clone_flags & CLONE_THREAD) {
- atomic_inc(&current->signal->count);
- atomic_inc(&current->signal->live);
+ if (clone_flags & CLONE_THREAD)
return 0;
- }
+
sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
tsk->signal = sig;
if (!sig)
@@ -844,16 +842,6 @@ void __cleanup_signal(struct signal_struct *sig)
kmem_cache_free(signal_cachep, sig);
}

-static void cleanup_signal(struct task_struct *tsk)
-{
- struct signal_struct *sig = tsk->signal;
-
- atomic_dec(&sig->live);
-
- if (atomic_dec_and_test(&sig->count))
- __cleanup_signal(sig);
-}
-
static void copy_flags(unsigned long clone_flags, struct task_struct *p)
{
unsigned long new_flags = p->flags;
@@ -1201,6 +1189,8 @@ static struct task_struct *copy_process(unsigned long clone_flags,
}

if (clone_flags & CLONE_THREAD) {
+ atomic_inc(&current->signal->count);
+ atomic_inc(&current->signal->live);
p->group_leader = current->group_leader;
list_add_tail_rcu(&p->thread_group, &p->group_leader->thread_group);

@@ -1261,7 +1251,8 @@ bad_fork_cleanup_mm:
if (p->mm)
mmput(p->mm);
bad_fork_cleanup_signal:
- cleanup_signal(p);
+ if (!(clone_flags & CLONE_THREAD))
+ __cleanup_signal(p->signal);
bad_fork_cleanup_sighand:
__cleanup_sighand(p->sighand);
bad_fork_cleanup_fs:
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 96cff2f..9548d52 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -213,12 +213,12 @@ int kthread_stop(struct task_struct *k)
/* Now set kthread_should_stop() to true, and wake it up. */
kthread_stop_info.k = k;
wake_up_process(k);
- put_task_struct(k);

/* Once it dies, reset stop ptr, gather result and we're done. */
wait_for_completion(&kthread_stop_info.done);
kthread_stop_info.k = NULL;
ret = kthread_stop_info.err;
+ put_task_struct(k);
mutex_unlock(&kthread_stop_lock);

return ret;
diff --git a/kernel/signal.c b/kernel/signal.c
index 7d0a222..de2b649 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2353,11 +2353,9 @@ do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long s
stack_t oss;
int error;

- if (uoss) {
- oss.ss_sp = (void __user *) current->sas_ss_sp;
- oss.ss_size = current->sas_ss_size;
- oss.ss_flags = sas_ss_flags(sp);
- }
+ oss.ss_sp = (void __user *) current->sas_ss_sp;
+ oss.ss_size = current->sas_ss_size;
+ oss.ss_flags = sas_ss_flags(sp);

if (uss) {
void __user *ss_sp;
@@ -2400,13 +2398,16 @@ do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long s
current->sas_ss_size = ss_size;
}

+ error = 0;
if (uoss) {
error = -EFAULT;
- if (copy_to_user(uoss, &oss, sizeof(oss)))
+ if (!access_ok(VERIFY_WRITE, uoss, sizeof(*uoss)))
goto out;
+ error = __put_user(oss.ss_sp, &uoss->ss_sp) |
+ __put_user(oss.ss_size, &uoss->ss_size) |
+ __put_user(oss.ss_flags, &uoss->ss_flags);
}

- error = 0;
out:
return error;
}
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 0c85042..8067dc7 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1245,6 +1245,7 @@ static int atalk_getname(struct socket *sock, struct sockaddr *uaddr,
return -ENOBUFS;

*uaddr_len = sizeof(struct sockaddr_at);
+ memset(&sat.sat_zero, 0, sizeof(sat.sat_zero));

if (peer) {
if (sk->sk_state != TCP_ESTABLISHED)
diff --git a/net/can/raw.c b/net/can/raw.c
index 6e0663f..08f31d4 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -396,6 +396,7 @@ static int raw_getname(struct socket *sock, struct sockaddr *uaddr,
if (peer)
return -EOPNOTSUPP;

+ memset(addr, 0, sizeof(*addr));
addr->can_family = AF_CAN;
addr->can_ifindex = ro->ifindex;

diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 8789d2b..9aae86f 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -520,6 +520,7 @@ static int econet_getname(struct socket *sock, struct sockaddr *uaddr,
if (peer)
return -EOPNOTSUPP;

+ memset(sec, 0, sizeof(*sec));
mutex_lock(&econet_mutex);

sk = sock->sk;
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 3eb5bcc..b28409c 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -714,6 +714,7 @@ static int irda_getname(struct socket *sock, struct sockaddr *uaddr,
struct sock *sk = sock->sk;
struct irda_sock *self = irda_sk(sk);

+ memset(&saddr, 0, sizeof(saddr));
if (peer) {
if (sk->sk_state != TCP_ESTABLISHED)
return -ENOTCONN;
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 5bcc452..90a55b1 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -915,6 +915,7 @@ static int llc_ui_getname(struct socket *sock, struct sockaddr *uaddr,
struct llc_sock *llc = llc_sk(sk);
int rc = 0;

+ memset(&sllc, 0, sizeof(sllc));
lock_sock(sk);
if (sock_flag(sk, SOCK_ZAPPED))
goto out;
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index db9e263..ad72bde 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -848,6 +848,7 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
sax->fsa_ax25.sax25_family = AF_NETROM;
sax->fsa_ax25.sax25_ndigis = 1;
sax->fsa_ax25.sax25_call = nr->user_addr;
+ memset(sax->fsa_digipeater, 0, sizeof(sax->fsa_digipeater));
sax->fsa_digipeater[0] = nr->dest_addr;
*uaddr_len = sizeof(struct full_sockaddr_ax25);
} else {
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index c062361..f132243 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -957,6 +957,7 @@ static int rose_getname(struct socket *sock, struct sockaddr *uaddr,
struct rose_sock *rose = rose_sk(sk);
int n;

+ memset(srose, 0, sizeof(*srose));
if (peer != 0) {
if (sk->sk_state != TCP_ESTABLISHED)
return -ENOTCONN;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 66cfe88..860b1d4 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -860,6 +860,7 @@ static inline void
rpc_task_force_reencode(struct rpc_task *task)
{
task->tk_rqstp->rq_snd_buf.len = 0;
+ task->tk_rqstp->rq_bytes_sent = 0;
}

static inline void
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 99a52aa..b66be67 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -645,10 +645,8 @@ xprt_init_autodisconnect(unsigned long data)
if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
goto out_abort;
spin_unlock(&xprt->transport_lock);
- if (xprt_connecting(xprt))
- xprt_release_write(xprt, NULL);
- else
- queue_work(rpciod_workqueue, &xprt->task_cleanup);
+ set_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
+ queue_work(rpciod_workqueue, &xprt->task_cleanup);
return;
out_abort:
spin_unlock(&xprt->transport_lock);
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 8f9295d..a283304 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -748,6 +748,9 @@ out_release:
*
* This is used when all requests are complete; ie, no DRC state remains
* on the server we want to save.
+ *
+ * The caller _must_ be holding XPRT_LOCKED in order to avoid issues with
+ * xs_reset_transport() zeroing the socket from underneath a writer.
*/
static void xs_close(struct rpc_xprt *xprt)
{
@@ -781,6 +784,14 @@ clear_close_wait:
xprt_disconnect_done(xprt);
}

+static void xs_tcp_close(struct rpc_xprt *xprt)
+{
+ if (test_and_clear_bit(XPRT_CONNECTION_CLOSE, &xprt->state))
+ xs_close(xprt);
+ else
+ xs_tcp_shutdown(xprt);
+}
+
/**
* xs_destroy - prepare to shutdown a transport
* @xprt: doomed transport
@@ -1676,11 +1687,21 @@ static void xs_tcp_connect_worker4(struct work_struct *work)
goto out_clear;
case -ECONNREFUSED:
case -ECONNRESET:
+ case -ENETUNREACH:
/* retry with existing socket, after a delay */
- break;
+ goto out_clear;
default:
/* get rid of existing socket, and retry */
xs_tcp_shutdown(xprt);
+ printk("%s: connect returned unhandled error %d\n",
+ __func__, status);
+ case -EADDRNOTAVAIL:
+ /* We're probably in TIME_WAIT. Get rid of existing socket,
+ * and retry
+ */
+ set_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
+ xprt_force_disconnect(xprt);
+ status = -EAGAIN;
}
}
out:
@@ -1735,11 +1756,21 @@ static void xs_tcp_connect_worker6(struct work_struct *work)
goto out_clear;
case -ECONNREFUSED:
case -ECONNRESET:
+ case -ENETUNREACH:
/* retry with existing socket, after a delay */
- break;
+ goto out_clear;
default:
/* get rid of existing socket, and retry */
xs_tcp_shutdown(xprt);
+ printk("%s: connect returned unhandled error %d\n",
+ __func__, status);
+ case -EADDRNOTAVAIL:
+ /* We're probably in TIME_WAIT. Get rid of existing socket,
+ * and retry
+ */
+ set_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
+ xprt_force_disconnect(xprt);
+ status = -EAGAIN;
}
}
out:
@@ -1871,7 +1902,7 @@ static struct rpc_xprt_ops xs_tcp_ops = {
.buf_free = rpc_free,
.send_request = xs_tcp_send_request,
.set_retrans_timeout = xprt_set_retrans_timeout_def,
- .close = xs_tcp_shutdown,
+ .close = xs_tcp_close,
.destroy = xs_destroy,
.print_stats = xs_tcp_print_stats,
};
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 1533f03..4cfbd79 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -779,47 +779,24 @@ static int snd_interval_ratden(struct snd_interval *i,
int snd_interval_list(struct snd_interval *i, unsigned int count, unsigned int *list, unsigned int mask)
{
unsigned int k;
- int changed = 0;
+ struct snd_interval list_range;

if (!count) {
i->empty = 1;
return -EINVAL;
}
+ snd_interval_any(&list_range);
+ list_range.min = UINT_MAX;
+ list_range.max = 0;
for (k = 0; k < count; k++) {
if (mask && !(mask & (1 << k)))
continue;
- if (i->min == list[k] && !i->openmin)
- goto _l1;
- if (i->min < list[k]) {
- i->min = list[k];
- i->openmin = 0;
- changed = 1;
- goto _l1;
- }
- }
- i->empty = 1;
- return -EINVAL;
- _l1:
- for (k = count; k-- > 0;) {
- if (mask && !(mask & (1 << k)))
+ if (!snd_interval_test(i, list[k]))
continue;
- if (i->max == list[k] && !i->openmax)
- goto _l2;
- if (i->max > list[k]) {
- i->max = list[k];
- i->openmax = 0;
- changed = 1;
- goto _l2;
- }
+ list_range.min = min(list_range.min, list[k]);
+ list_range.max = max(list_range.max, list[k]);
}
- i->empty = 1;
- return -EINVAL;
- _l2:
- if (snd_interval_checkempty(i)) {
- i->empty = 1;
- return -EINVAL;
- }
- return changed;
+ return snd_interval_refine(i, &list_range);
}

EXPORT_SYMBOL(snd_interval_list);
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 07f8dcc..2581b8c 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5580,9 +5580,9 @@ static struct hda_verb alc885_mbp_ch2_init[] = {
};

/*
- * 6ch mode
+ * 4ch mode
*/
-static struct hda_verb alc885_mbp_ch6_init[] = {
+static struct hda_verb alc885_mbp_ch4_init[] = {
{ 0x1a, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
{ 0x1a, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
{ 0x1a, AC_VERB_SET_CONNECT_SEL, 0x01 },
@@ -5591,9 +5591,9 @@ static struct hda_verb alc885_mbp_ch6_init[] = {
{ } /* end */
};

-static struct hda_channel_mode alc885_mbp_6ch_modes[2] = {
+static struct hda_channel_mode alc885_mbp_4ch_modes[2] = {
{ 2, alc885_mbp_ch2_init },
- { 6, alc885_mbp_ch6_init },
+ { 4, alc885_mbp_ch4_init },
};

@@ -5628,10 +5628,11 @@ static struct snd_kcontrol_new alc882_base_mixer[] = {
};

static struct snd_kcontrol_new alc885_mbp3_mixer[] = {
- HDA_CODEC_VOLUME("Front Playback Volume", 0x0c, 0x00, HDA_OUTPUT),
- HDA_BIND_MUTE ("Front Playback Switch", 0x0c, 0x02, HDA_INPUT),
- HDA_CODEC_MUTE ("Speaker Playback Switch", 0x14, 0x00, HDA_OUTPUT),
- HDA_CODEC_VOLUME("Line-Out Playback Volume", 0x0d, 0x00, HDA_OUTPUT),
+ HDA_CODEC_VOLUME("Speaker Playback Volume", 0x0c, 0x00, HDA_OUTPUT),
+ HDA_BIND_MUTE ("Speaker Playback Switch", 0x0c, 0x02, HDA_INPUT),
+ HDA_CODEC_VOLUME("Headphone Playback Volume", 0x0e, 0x00, HDA_OUTPUT),
+ HDA_BIND_MUTE ("Headphone Playback Switch", 0x0e, 0x02, HDA_INPUT),
+ HDA_CODEC_VOLUME("Surround Playback Volume", 0x0d, 0x00, HDA_OUTPUT),
HDA_CODEC_VOLUME("Line Playback Volume", 0x0b, 0x02, HDA_INPUT),
HDA_CODEC_MUTE ("Line Playback Switch", 0x0b, 0x02, HDA_INPUT),
HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x00, HDA_INPUT),
@@ -5879,14 +5880,18 @@ static struct hda_verb alc885_mbp3_init_verbs[] = {
{0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
{0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)},
{0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)},
+ /* HP mixer */
+ {0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_ZERO},
+ {0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)},
+ {0x0e, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)},
/* Front Pin: output 0 (0x0c) */
{0x14, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
{0x14, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
{0x14, AC_VERB_SET_CONNECT_SEL, 0x00},
- /* HP Pin: output 0 (0x0d) */
+ /* HP Pin: output 0 (0x0e) */
{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, 0xc4},
- {0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
- {0x15, AC_VERB_SET_CONNECT_SEL, 0x00},
+ {0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
+ {0x15, AC_VERB_SET_CONNECT_SEL, 0x02},
{0x15, AC_VERB_SET_UNSOLICITED_ENABLE, ALC880_HP_EVENT | AC_USRSP_EN},
/* Mic (rear) pin: input vref at 80% */
{0x18, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80},
@@ -6326,10 +6331,11 @@ static struct alc_config_preset alc882_presets[] = {
.mixers = { alc885_mbp3_mixer, alc882_chmode_mixer },
.init_verbs = { alc885_mbp3_init_verbs,
alc880_gpio1_init_verbs },
- .num_dacs = ARRAY_SIZE(alc882_dac_nids),
+ .num_dacs = 2,
.dac_nids = alc882_dac_nids,
- .channel_mode = alc885_mbp_6ch_modes,
- .num_channel_mode = ARRAY_SIZE(alc885_mbp_6ch_modes),
+ .hp_nid = 0x04,
+ .channel_mode = alc885_mbp_4ch_modes,
+ .num_channel_mode = ARRAY_SIZE(alc885_mbp_4ch_modes),
.input_mux = &alc882_capture_source,
.dig_out_nid = ALC882_DIGOUT_NID,
.dig_in_nid = ALC882_DIGIN_NID,
@@ -11634,6 +11640,8 @@ static int patch_alc269(struct hda_codec *codec)
spec->num_adc_nids = ARRAY_SIZE(alc269_adc_nids);
spec->capsrc_nids = alc269_capsrc_nids;

+ spec->vmaster_nid = 0x02;
+
codec->patch_ops = alc_patch_ops;
if (board_config == ALC269_AUTO)
spec->init_hook = alc269_auto_init;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 7dd9b0b..db062b5 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -406,6 +406,8 @@ static void kvm_destroy_vm(struct kvm *kvm)
#endif
#if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER)
mmu_notifier_unregister(&kvm->mmu_notifier, kvm->mm);
+#else
+ kvm_arch_flush_shadow(kvm);
#endif
kvm_arch_destroy_vm(kvm);
mmdrop(mm);
@@ -548,6 +550,8 @@ int __kvm_set_memory_region(struct kvm *kvm,
if (!new.dirty_bitmap)
goto out_free;
memset(new.dirty_bitmap, 0, dirty_bytes);
+ if (old.npages)
+ kvm_arch_flush_shadow(kvm);
}
#endif /* not defined CONFIG_S390 */

@@ -726,7 +730,7 @@ pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn)
return page_to_pfn(bad_page);
}

- npages = get_user_pages(current, current->mm, addr, 1, 1, 1, page,
+ npages = get_user_pages(current, current->mm, addr, 1, 1, 0, page,
NULL);

if (unlikely(npages != 1)) {
@@ -1074,12 +1078,11 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n)

r = kvm_arch_vcpu_setup(vcpu);
if (r)
- goto vcpu_destroy;
+ return r;

mutex_lock(&kvm->lock);
if (kvm->vcpus[n]) {
r = -EEXIST;
- mutex_unlock(&kvm->lock);
goto vcpu_destroy;
}
kvm->vcpus[n] = vcpu;
@@ -1095,8 +1098,8 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n)
unlink:
mutex_lock(&kvm->lock);
kvm->vcpus[n] = NULL;
- mutex_unlock(&kvm->lock);
vcpu_destroy:
+ mutex_unlock(&kvm->lock);
kvm_arch_vcpu_destroy(vcpu);
return r;
}
@@ -1118,6 +1121,8 @@ static long kvm_vcpu_ioctl(struct file *filp,
struct kvm_vcpu *vcpu = filp->private_data;
void __user *argp = (void __user *)arg;
int r;
+ struct kvm_fpu *fpu = NULL;
+ struct kvm_sregs *kvm_sregs = NULL;

if (vcpu->kvm->mm != current->mm)
return -EIO;
@@ -1165,25 +1170,28 @@ out_free2:
break;
}
case KVM_GET_SREGS: {
- struct kvm_sregs kvm_sregs;
-
- memset(&kvm_sregs, 0, sizeof kvm_sregs);
- r = kvm_arch_vcpu_ioctl_get_sregs(vcpu, &kvm_sregs);
+ kvm_sregs = kzalloc(sizeof(struct kvm_sregs), GFP_KERNEL);
+ r = -ENOMEM;
+ if (!kvm_sregs)
+ goto out;
+ r = kvm_arch_vcpu_ioctl_get_sregs(vcpu, kvm_sregs);
if (r)
goto out;
r = -EFAULT;
- if (copy_to_user(argp, &kvm_sregs, sizeof kvm_sregs))
+ if (copy_to_user(argp, kvm_sregs, sizeof(struct kvm_sregs)))
goto out;
r = 0;
break;
}
case KVM_SET_SREGS: {
- struct kvm_sregs kvm_sregs;
-
+ kvm_sregs = kmalloc(sizeof(struct kvm_sregs), GFP_KERNEL);
+ r = -ENOMEM;
+ if (!kvm_sregs)
+ goto out;
r = -EFAULT;
- if (copy_from_user(&kvm_sregs, argp, sizeof kvm_sregs))
+ if (copy_from_user(kvm_sregs, argp, sizeof(struct kvm_sregs)))
goto out;
- r = kvm_arch_vcpu_ioctl_set_sregs(vcpu, &kvm_sregs);
+ r = kvm_arch_vcpu_ioctl_set_sregs(vcpu, kvm_sregs);
if (r)
goto out;
r = 0;
@@ -1264,25 +1272,28 @@ out_free2:
break;
}
case KVM_GET_FPU: {
- struct kvm_fpu fpu;
-
- memset(&fpu, 0, sizeof fpu);
- r = kvm_arch_vcpu_ioctl_get_fpu(vcpu, &fpu);
+ fpu = kzalloc(sizeof(struct kvm_fpu), GFP_KERNEL);
+ r = -ENOMEM;
+ if (!fpu)
+ goto out;
+ r = kvm_arch_vcpu_ioctl_get_fpu(vcpu, fpu);
if (r)
goto out;
r = -EFAULT;
- if (copy_to_user(argp, &fpu, sizeof fpu))
+ if (copy_to_user(argp, fpu, sizeof(struct kvm_fpu)))
goto out;
r = 0;
break;
}
case KVM_SET_FPU: {
- struct kvm_fpu fpu;
-
+ fpu = kmalloc(sizeof(struct kvm_fpu), GFP_KERNEL);
+ r = -ENOMEM;
+ if (!fpu)
+ goto out;
r = -EFAULT;
- if (copy_from_user(&fpu, argp, sizeof fpu))
+ if (copy_from_user(fpu, argp, sizeof(struct kvm_fpu)))
goto out;
- r = kvm_arch_vcpu_ioctl_set_fpu(vcpu, &fpu);
+ r = kvm_arch_vcpu_ioctl_set_fpu(vcpu, fpu);
if (r)
goto out;
r = 0;
@@ -1292,6 +1303,8 @@ out_free2:
r = kvm_arch_vcpu_ioctl(filp, ioctl, arg);
}
out:
+ kfree(fpu);
+ kfree(kvm_sregs);
return r;
}