Structs starting with 'f' in kern

• fchmod_args kern/vfs_syscalls.c:1319
• fchown_args kern/vfs_syscalls.c:1397
• fcntl_args kern/kern_descrip.c:164
• fdchflags_args kern/vfs_syscalls.c:1243
• fifoinfo kern/fifo_vnops.c:56
• flock_args kern/kern_descrip.c:710
• fstat_args kern/kern_descrip.c:349
• fstatfs_args kern/vfs_syscalls.c:396
• fsync_args kern/vfs_syscalls.c:1562
• ftruncate_args kern/vfs_syscalls.c:1522