This is the 4.19.142 stable release

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Merge 4.19.142 into android-4.19-stable

Changes in 4.19.142
	drm/vgem: Replace opencoded version of drm_gem_dumb_map_offset()
	perf probe: Fix memory leakage when the probe point is not found
	khugepaged: khugepaged_test_exit() check mmget_still_valid()
	khugepaged: adjust VM_BUG_ON_MM() in __khugepaged_enter()
	btrfs: export helpers for subvolume name/id resolution
	btrfs: don't show full path of bind mounts in subvol=
	btrfs: Move free_pages_out label in inline extent handling branch in compress_file_range
	btrfs: inode: fix NULL pointer dereference if inode doesn't need compression
	btrfs: sysfs: use NOFS for device creation
	romfs: fix uninitialized memory leak in romfs_dev_read()
	kernel/relay.c: fix memleak on destroy relay channel
	mm: include CMA pages in lowmem_reserve at boot
	mm, page_alloc: fix core hung in free_pcppages_bulk()
	ext4: fix checking of directory entry validity for inline directories
	jbd2: add the missing unlock_buffer() in the error path of jbd2_write_superblock()
	scsi: zfcp: Fix use-after-free in request timeout handlers
	drm/amd/display: fix pow() crashing when given base 0
	kthread: Do not preempt current task if it is going to call schedule()
	spi: Prevent adding devices below an unregistering controller
	scsi: ufs: Add DELAY_BEFORE_LPM quirk for Micron devices
	scsi: target: tcmu: Fix crash in tcmu_flush_dcache_range on ARM
	media: budget-core: Improve exception handling in budget_register()
	rtc: goldfish: Enable interrupt in set_alarm() when necessary
	media: vpss: clean up resources in init
	Input: psmouse - add a newline when printing 'proto' by sysfs
	m68knommu: fix overwriting of bits in ColdFire V3 cache control
	svcrdma: Fix another Receive buffer leak
	xfs: fix inode quota reservation checks
	jffs2: fix UAF problem
	ceph: fix use-after-free for fsc->mdsc
	cpufreq: intel_pstate: Fix cpuinfo_max_freq when MSR_TURBO_RATIO_LIMIT is 0
	scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid cases
	virtio_ring: Avoid loop when vq is broken in virtqueue_poll
	tools/testing/selftests/cgroup/cgroup_util.c: cg_read_strcmp: fix null pointer dereference
	xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init
	alpha: fix annotation of io{read,write}{16,32}be()
	fs/signalfd.c: fix inconsistent return codes for signalfd4
	ext4: fix potential negative array index in do_split()
	ext4: don't allow overlapping system zones
	ASoC: q6routing: add dummy register read/write function
	i40e: Set RX_ONLY mode for unicast promiscuous on VLAN
	i40e: Fix crash during removing i40e driver
	net: fec: correct the error path for regulator disable in probe
	bonding: show saner speed for broadcast mode
	bonding: fix a potential double-unregister
	s390/runtime_instrumentation: fix storage key handling
	s390/ptrace: fix storage key handling
	ASoC: msm8916-wcd-analog: fix register Interrupt offset
	ASoC: intel: Fix memleak in sst_media_open
	vfio/type1: Add proper error unwind for vfio_iommu_replay()
	kvm: x86: Toggling CR4.SMAP does not load PDPTEs in PAE mode
	kvm: x86: Toggling CR4.PKE does not load PDPTEs in PAE mode
	kconfig: qconf: do not limit the pop-up menu to the first row
	kconfig: qconf: fix signal connection to invalid slots
	efi: avoid error message when booting under Xen
	Fix build error when CONFIG_ACPI is not set/enabled:
	RDMA/bnxt_re: Do not add user qps to flushlist
	afs: Fix NULL deref in afs_dynroot_depopulate()
	bonding: fix active-backup failover for current ARP slave
	net: ena: Prevent reset after device destruction
	net: gemini: Fix missing free_netdev() in error path of gemini_ethernet_port_probe()
	hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
	net: dsa: b53: check for timeout
	powerpc/pseries: Do not initiate shutdown when system is running on UPS
	efi: add missed destroy_workqueue when efisubsys_init fails
	epoll: Keep a reference on files added to the check list
	do_epoll_ctl(): clean the failure exits up a bit
	mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible
	xen: don't reschedule in preemption off sections
	clk: Evict unregistered clks from parent caches
	KVM: Pass MMU notifier range flags to kvm_unmap_hva_range()
	KVM: arm64: Only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is not set
	Linux 4.19.142

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibfe4a0a4249f76ab35076f4b003e32cd6f9788a5

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 19
-SUBLEVEL = 141
+SUBLEVEL = 142
 EXTRAVERSION =
 NAME = "People's Front"
 

arch/alpha/include/asm/io.h

@@ -507,10 +507,10 @@ extern inline void writeq(u64 b, volatile void __iomem *addr)
 }
 #endif
 
-#define ioread16be(p) be16_to_cpu(ioread16(p))
-#define ioread32be(p) be32_to_cpu(ioread32(p))
-#define iowrite16be(v,p) iowrite16(cpu_to_be16(v), (p))
-#define iowrite32be(v,p) iowrite32(cpu_to_be32(v), (p))
+#define ioread16be(p) swab16(ioread16(p))
+#define ioread32be(p) swab32(ioread32(p))
+#define iowrite16be(v,p) iowrite16(swab16(v), (p))
+#define iowrite32be(v,p) iowrite32(swab32(v), (p))
 
 #define inb_p		inb
 #define inw_p		inw

arch/arm/include/asm/kvm_host.h

@@ -234,7 +234,7 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
 int kvm_unmap_hva_range(struct kvm *kvm,
-			unsigned long start, unsigned long end);
+			unsigned long start, unsigned long end, bool blockable);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 
 unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);

arch/arm64/include/asm/kvm_host.h

@@ -370,7 +370,7 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
 int kvm_unmap_hva_range(struct kvm *kvm,
-			unsigned long start, unsigned long end);
+			unsigned long start, unsigned long end, bool blockable);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);

arch/m68k/include/asm/m53xxacr.h

@@ -89,9 +89,9 @@
  * coherency though in all cases. And for copyback caches we will need
  * to push cached data as well.
  */
-#define CACHE_INIT	  CACR_CINVA
-#define CACHE_INVALIDATE  CACR_CINVA
-#define CACHE_INVALIDATED CACR_CINVA
+#define CACHE_INIT        (CACHE_MODE + CACR_CINVA - CACR_EC)
+#define CACHE_INVALIDATE  (CACHE_MODE + CACR_CINVA)
+#define CACHE_INVALIDATED (CACHE_MODE + CACR_CINVA)
 
 #define ACR0_MODE	((CONFIG_RAMBASE & 0xff000000) + \
 			 (0x000f0000) + \

arch/mips/include/asm/kvm_host.h

@@ -936,7 +936,7 @@ enum kvm_mips_fault_result kvm_trap_emul_gva_fault(struct kvm_vcpu *vcpu,
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
 int kvm_unmap_hva_range(struct kvm *kvm,
-			unsigned long start, unsigned long end);
+			unsigned long start, unsigned long end, bool blockable);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);

arch/mips/kvm/mmu.c

@@ -512,7 +512,8 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end,
 	return 1;
 }
 
-int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
+int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
+			bool blockable)
 {
 	handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, NULL);
 

arch/powerpc/include/asm/kvm_host.h

@@ -68,7 +68,8 @@
 #define KVM_ARCH_WANT_MMU_NOTIFIER
 
 extern int kvm_unmap_hva_range(struct kvm *kvm,
-			       unsigned long start, unsigned long end);
+			       unsigned long start, unsigned long end,
+			       bool blockable);
 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

arch/powerpc/kvm/book3s.c

@@ -812,7 +812,8 @@ void kvmppc_core_commit_memory_region(struct kvm *kvm,
 	kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old, new);
 }
 
-int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
+int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
+			bool blockable)
 {
 	return kvm->arch.kvm_ops->unmap_hva_range(kvm, start, end);
 }

arch/powerpc/kvm/e500_mmu_host.c

@@ -737,7 +737,8 @@ static int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
 	return 0;
 }
 
-int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
+int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
+			bool blockable)
 {
 	/* kvm_unmap_hva flushes everything anyways */
 	kvm_unmap_hva(kvm, start);

arch/powerpc/platforms/pseries/ras.c

@@ -118,7 +118,6 @@ static void handle_system_shutdown(char event_modifier)
 	case EPOW_SHUTDOWN_ON_UPS:
 		pr_emerg("Loss of system power detected. System is running on"
 			 " UPS/battery. Check RTAS error log for details\n");
-		orderly_poweroff(true);
 		break;
 
 	case EPOW_SHUTDOWN_LOSS_OF_CRITICAL_FUNCTIONS:

arch/s390/kernel/ptrace.c

@@ -1286,7 +1286,6 @@ static bool is_ri_cb_valid(struct runtime_instr_cb *cb)
 		cb->pc == 1 &&
 		cb->qc == 0 &&
 		cb->reserved2 == 0 &&
-		cb->key == PAGE_DEFAULT_KEY &&
 		cb->reserved3 == 0 &&
 		cb->reserved4 == 0 &&
 		cb->reserved5 == 0 &&
@@ -1350,7 +1349,11 @@ static int s390_runtime_instr_set(struct task_struct *target,
 		kfree(data);
 		return -EINVAL;
 	}
-
+	/*
+	 * Override access key in any case, since user space should
+	 * not be able to set it, nor should it care about it.
+	 */
+	ri_cb.key = PAGE_DEFAULT_KEY >> 4;
 	preempt_disable();
 	if (!target->thread.ri_cb)
 		target->thread.ri_cb = data;

arch/s390/kernel/runtime_instr.c

@@ -57,7 +57,7 @@ static void init_runtime_instr_cb(struct runtime_instr_cb *cb)
 	cb->k = 1;
 	cb->ps = 1;
 	cb->pc = 1;
-	cb->key = PAGE_DEFAULT_KEY;
+	cb->key = PAGE_DEFAULT_KEY >> 4;
 	cb->v = 1;
 }
 

arch/x86/include/asm/kvm_host.h

@@ -1465,7 +1465,8 @@ asmlinkage void __noreturn kvm_spurious_fault(void);
 	____kvm_handle_fault_on_reboot(insn, "")
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);
+int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
+			bool blockable);
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

arch/x86/kvm/mmu.c

@@ -1956,7 +1956,8 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva,
 	return kvm_handle_hva_range(kvm, hva, hva + 1, data, handler);
 }
 
-int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
+int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
+			bool blockable)
 {
 	return kvm_handle_hva_range(kvm, start, end, 0, kvm_unmap_rmapp);
 }

arch/x86/kvm/x86.c

@@ -857,7 +857,7 @@ int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 {
 	unsigned long old_cr4 = kvm_read_cr4(vcpu);
 	unsigned long pdptr_bits = X86_CR4_PGE | X86_CR4_PSE | X86_CR4_PAE |
-				   X86_CR4_SMEP | X86_CR4_SMAP | X86_CR4_PKE;
+				   X86_CR4_SMEP;
 
 	if (kvm_valid_cr4(vcpu, cr4))
 		return 1;

arch/x86/pci/xen.c

@@ -25,6 +25,7 @@
 #include <asm/xen/pci.h>
 #include <asm/xen/cpuid.h>
 #include <asm/apic.h>
+#include <asm/acpi.h>
 #include <asm/i8259.h>
 
 static int xen_pcifront_enable_irq(struct pci_dev *dev)

drivers/clk/clk.c

@@ -44,6 +44,17 @@ static HLIST_HEAD(clk_root_list);
 static HLIST_HEAD(clk_orphan_list);
 static LIST_HEAD(clk_notifier_list);
 
+static struct hlist_head *all_lists[] = {
+	&clk_root_list,
+	&clk_orphan_list,
+	NULL,
+};
+
+static struct hlist_head *orphan_list[] = {
+	&clk_orphan_list,
+	NULL,
+};
+
 /*
  * clk_rate_change_list is used during clk_core_set_rate_nolock() calls to
  * handle vdd_class vote tracking.  core->rate_change_node is added to
@@ -3173,17 +3184,6 @@ static int inited = 0;
 static DEFINE_MUTEX(clk_debug_lock);
 static HLIST_HEAD(clk_debug_list);
 
-static struct hlist_head *all_lists[] = {
-	&clk_root_list,
-	&clk_orphan_list,
-	NULL,
-};
-
-static struct hlist_head *orphan_list[] = {
-	&clk_orphan_list,
-	NULL,
-};
-
 static void clk_summary_show_one(struct seq_file *s, struct clk_core *c,
 				 int level)
 {
@@ -3939,6 +3939,34 @@ static const struct clk_ops clk_nodrv_ops = {
 	.set_parent	= clk_nodrv_set_parent,
 };
 
+static void clk_core_evict_parent_cache_subtree(struct clk_core *root,
+						struct clk_core *target)
+{
+	int i;
+	struct clk_core *child;
+
+	for (i = 0; i < root->num_parents; i++)
+		if (root->parents[i] == target)
+			root->parents[i] = NULL;
+
+	hlist_for_each_entry(child, &root->children, child_node)
+		clk_core_evict_parent_cache_subtree(child, target);
+}
+
+/* Remove this clk from all parent caches */
+static void clk_core_evict_parent_cache(struct clk_core *core)
+{
+	struct hlist_head **lists;
+	struct clk_core *root;
+
+	lockdep_assert_held(&prepare_lock);
+
+	for (lists = all_lists; *lists; lists++)
+		hlist_for_each_entry(root, *lists, child_node)
+			clk_core_evict_parent_cache_subtree(root, core);
+
+}
+
 /**
  * clk_unregister - unregister a currently registered clock
  * @clk: clock to unregister
@@ -3977,6 +4005,8 @@ void clk_unregister(struct clk *clk)
 			clk_core_set_parent_nolock(child, NULL);
 	}
 
+	clk_core_evict_parent_cache(clk->core);
+
 	hlist_del_init(&clk->core->child_node);
 
 	if (clk->core->prepare_count)

drivers/cpufreq/intel_pstate.c

@@ -1431,6 +1431,7 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
 
 		intel_pstate_get_hwp_max(cpu->cpu, &phy_max, &current_max);
 		cpu->pstate.turbo_freq = phy_max * cpu->pstate.scaling;
+		cpu->pstate.turbo_pstate = phy_max;
 	} else {
 		cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * cpu->pstate.scaling;
 	}

drivers/firmware/efi/efi.c

@@ -359,6 +359,7 @@ static int __init efisubsys_init(void)
 	efi_kobj = kobject_create_and_add("efi", firmware_kobj);
 	if (!efi_kobj) {
 		pr_err("efi: Firmware registration failed.\n");
+		destroy_workqueue(efi_rts_wq);
 		return -ENOMEM;
 	}
 
@@ -395,6 +396,7 @@ err_unregister:
 	generic_ops_unregister();
 err_put:
 	kobject_put(efi_kobj);
+	destroy_workqueue(efi_rts_wq);
 	return error;
 }