acpi_ut_acquire_read_lock 408 drivers/acpi/acpica/acutils.h acpi_status acpi_ut_acquire_read_lock(struct acpi_rw_lock *lock); acpi_ut_acquire_read_lock 583 drivers/acpi/acpica/nsxfeval.c status = acpi_ut_acquire_read_lock(&acpi_gbl_namespace_rw_lock);