Merge 4.19.194 into android-4.19-stable

Changes in 4.19.194
	net: usb: cdc_ncm: don't spew notifications
	ALSA: usb: update old-style static const declaration
	nl80211: validate key indexes for cfg80211_registered_device
	efi: Allow EFI_MEMORY_XP and EFI_MEMORY_RO both to be cleared
	efi: cper: fix snprintf() use in cper_dimm_err_location()
	vfio/pci: Fix error return code in vfio_ecap_init()
	vfio/pci: zap_vma_ptes() needs MMU
	samples: vfio-mdev: fix error handing in mdpy_fb_probe()
	vfio/platform: fix module_put call in error flow
	ipvs: ignore IP_VS_SVC_F_HASHED flag when adding service
	HID: pidff: fix error return code in hid_pidff_init()
	HID: i2c-hid: fix format string mismatch
	netfilter: nfnetlink_cthelper: hit EBUSY on updates if size mismatches
	ieee802154: fix error return code in ieee802154_add_iface()
	ieee802154: fix error return code in ieee802154_llsec_getparams()
	ixgbevf: add correct exception tracing for XDP
	tipc: add extack messages for bearer/media failure
	tipc: fix unique bearer names sanity check
	Bluetooth: fix the erroneous flush_work() order
	Bluetooth: use correct lock to prevent UAF of hdev object
	net: caif: added cfserl_release function
	net: caif: add proper error handling
	net: caif: fix memory leak in caif_device_notify
	net: caif: fix memory leak in cfusbl_device_notify
	HID: multitouch: require Finger field to mark Win8 reports as MT
	ALSA: timer: Fix master timer notification
	ALSA: hda: Fix for mute key LED for HP Pavilion 15-CK0xx
	ext4: fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed
	usb: dwc2: Fix build in periphal-only mode
	pid: take a reference when initializing `cad_pid`
	ocfs2: fix data corruption by fallocate
	nfc: fix NULL ptr dereference in llcp_sock_getname() after failed connect
	x86/apic: Mark _all_ legacy interrupts when IO/APIC is missing
	btrfs: mark ordered extent and inode with error if we fail to finish
	btrfs: fix error handling in btrfs_del_csums
	btrfs: return errors from btrfs_del_csums in cleanup_ref_head
	btrfs: fixup error handling in fixup_inode_link_counts
	mm, hugetlb: fix simple resv_huge_pages underflow on UFFDIO_COPY
	bpf: fix test suite to enable all unpriv program types
	bpf: test make sure to run unpriv test cases in test_verifier
	selftests/bpf: Generalize dummy program types
	bpf: Add BPF_F_ANY_ALIGNMENT.
	bpf: Adjust F_NEEDS_EFFICIENT_UNALIGNED_ACCESS handling in test_verifier.c
	bpf: Make more use of 'any' alignment in test_verifier.c
	bpf: Apply F_NEEDS_EFFICIENT_UNALIGNED_ACCESS to more ACCEPT test cases.
	selftests/bpf: add "any alignment" annotation for some tests
	selftests/bpf: Avoid running unprivileged tests with alignment requirements
	bnxt_en: Remove the setting of dev_port.
	perf/cgroups: Don't rotate events for cgroups unnecessarily
	perf/core: Fix corner case in perf_rotate_context()
	btrfs: fix unmountable seed device after fstrim
	KVM: SVM: Truncate GPR value for DR and CR accesses in !64-bit mode
	KVM: arm64: Fix debug register indexing
	ACPI: probe ECDT before loading AML tables regardless of module-level code flag
	ACPI: EC: Look for ECDT EC after calling acpi_load_tables()
	sched/fair: Optimize select_idle_cpu
	xen-pciback: redo VF placement in the virtual topology
	Linux 4.19.194

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I87188f5f931bdb7987f2946859f899a42e29f4b1

include/linux/perf_event.h

@@ -761,6 +761,11 @@ struct perf_event_context {
 	int				nr_stat;
 	int				nr_freq;
 	int				rotate_disable;
+	/*
+	 * Set when nr_events != nr_active, except tolerant to events not
+	 * necessary to be active due to scheduling constraints, such as cgroups.
+	 */
+	int				rotate_necessary;
 	atomic_t			refcount;
 	struct task_struct		*task;