Symbol: O_FSYNC
sys/kern/vfs_vnops.c
795
} else if (fp->f_flag & O_FSYNC) {
sys/sys/fcntl.h
154
#define FFSYNC O_FSYNC /* kernel */
sys/vfs/devfs/devfs_vnops.c
1358
} else if (fp->f_flag & O_FSYNC) {