DEVCG_ACC_WRITE 8 include/linux/device_cgroup.h #define DEVCG_ACC_MASK (DEVCG_ACC_MKNOD | DEVCG_ACC_READ | DEVCG_ACC_WRITE) DEVCG_ACC_WRITE 50 include/linux/device_cgroup.h access |= DEVCG_ACC_WRITE; DEVCG_ACC_WRITE 242 security/device_cgroup.c if (access & DEVCG_ACC_WRITE) DEVCG_ACC_WRITE 700 security/device_cgroup.c ex.access |= DEVCG_ACC_WRITE;