ashmem_pin 748 drivers/staging/android/ashmem.c struct ashmem_pin pin; ashmem_pin 786 drivers/staging/android/ashmem.c ret = ashmem_pin(asma, pgstart, pgend, &range); ashmem_pin 40 drivers/staging/android/uapi/ashmem.h #define ASHMEM_PIN _IOW(__ASHMEMIOC, 7, struct ashmem_pin) ashmem_pin 41 drivers/staging/android/uapi/ashmem.h #define ASHMEM_UNPIN _IOW(__ASHMEMIOC, 8, struct ashmem_pin)