//
// h.lock must be held.
func (h *mheap) grow(npage uintptr) (uintptr, bool) {
	assertLockHeld(&h.lock)

	// We must grow the heap in whole palloc chunks.
	// We call sysMap below but note that because we
	// round up to pallocChunkPages which is on the order
	// of MiB (generally >= to the huge page size) we
	// won't be calling it too much.

	// reusing is set to fault (so, also Reserved), so transition
	// it to Prepared and then Ready.
	//
	// Unlike (*mheap).grow, just map in everything that we
	// asked for. We're likely going to use it all.
	sysMap(unsafe.Pointer(base), userArenaChunkBytes, &gcController.heapReleased)
	sysUsed(unsafe.Pointer(base), userArenaChunkBytes, userArenaChunkBytes)

	// Model the user arena as a heap span for a large object.

		return nil
	}
	l.next = p + size
	if pEnd := alignUp(l.next-1, physPageSize); pEnd > l.mapped {
		if l.mapMemory {
			// Transition from Reserved to Prepared to Ready.
			n := pEnd - l.mapped
			sysMap(unsafe.Pointer(l.mapped), n, sysStat)
			sysUsed(unsafe.Pointer(l.mapped), n, n)
		}
		l.mapped = pEnd
	}
	return unsafe.Pointer(p)
}

	// Load existing policy mapping
	var mp MappedPolicy
	if !isGroup {
		if userType == stsUser {
			stsMap := xsync.NewMapOf[string, MappedPolicy]()

			// Attempt to load parent user mapping for STS accounts
			store.loadMappedPolicy(context.TODO(), name, stsUser, false, stsMap)

			mp, _ = stsMap.Load(name)
		} else {
			mp, _ = cache.iamUserPolicyMap.Load(name)
		}
	} else {

	FADV_NOREUSE  = 0x5
)

type RawSockaddrNFCLLCP struct {
	Sa_family        uint16
	Dev_idx          uint32
	Target_idx       uint32
	Nfc_protocol     uint32
	Dsap             uint8
	Ssap             uint8
	Service_name     [63]uint8
	Service_name_len uint32
}

type RawSockaddr struct {
	Family uint16
	Data   [14]int8
}

type RawSockaddrAny struct {
	Addr RawSockaddr

	FADV_NOREUSE  = 0x5
)

type RawSockaddrNFCLLCP struct {
	Sa_family        uint16
	Dev_idx          uint32
	Target_idx       uint32
	Nfc_protocol     uint32
	Dsap             uint8
	Ssap             uint8
	Service_name     [63]uint8
	Service_name_len uint64
}

type RawSockaddr struct {
	Family uint16
	Data   [14]int8
}

type RawSockaddrAny struct {
	Addr RawSockaddr

	FADV_NOREUSE  = 0x5
)

type RawSockaddrNFCLLCP struct {
	Sa_family        uint16
	Dev_idx          uint32
	Target_idx       uint32
	Nfc_protocol     uint32
	Dsap             uint8
	Ssap             uint8
	Service_name     [63]uint8
	Service_name_len uint64
}

type RawSockaddr struct {
	Family uint16
	Data   [14]int8
}

type RawSockaddrAny struct {
	Addr RawSockaddr

	FADV_NOREUSE  = 0x5
)

type RawSockaddrNFCLLCP struct {
	Sa_family        uint16
	Dev_idx          uint32
	Target_idx       uint32
	Nfc_protocol     uint32
	Dsap             uint8
	Ssap             uint8
	Service_name     [63]uint8
	Service_name_len uint32
}

type RawSockaddr struct {
	Family uint16
	Data   [14]int8
}

type RawSockaddrAny struct {
	Addr RawSockaddr

	FADV_NOREUSE  = 0x7
)

type RawSockaddrNFCLLCP struct {
	Sa_family        uint16
	Dev_idx          uint32
	Target_idx       uint32
	Nfc_protocol     uint32
	Dsap             uint8
	Ssap             uint8
	Service_name     [63]uint8
	Service_name_len uint64
}

type RawSockaddr struct {
	Family uint16
	Data   [14]int8
}

type RawSockaddrAny struct {
	Addr RawSockaddr

	FADV_NOREUSE  = 0x5
)

type RawSockaddrNFCLLCP struct {
	Sa_family        uint16
	Dev_idx          uint32
	Target_idx       uint32
	Nfc_protocol     uint32
	Dsap             uint8
	Ssap             uint8
	Service_name     [63]uint8
	Service_name_len uint64
}

type RawSockaddr struct {
	Family uint16
	Data   [14]int8
}

type RawSockaddrAny struct {
	Addr RawSockaddr