1 #include <stdio.h> 2 #include <unistd.h> 3 #include <sys/swap.h> 4 swapoff_main(int argc,char ** argv)5int swapoff_main(int argc, char **argv) 6 { 7 int err = 0; 8 9 if (argc != 2) { 10 fprintf(stderr, "Usage: %s <filename>\n", argv[0]); 11 return -EINVAL; 12 } 13 14 err = swapoff(argv[1]); 15 if (err) { 16 fprintf(stderr, "swapoff failed for %s\n", argv[1]); 17 } 18 19 return err; 20 } 21