1 /* fsfreeze.c - freeze or thaw filesystem 2 * 3 * No standard. 4 5 USE_FSFREEZE(NEWTOY(fsfreeze, "<1>1f|u|[!fu]", TOYFLAG_USR|TOYFLAG_SBIN)) 6 7 config FSFREEZE 8 bool "fsfreeze" 9 default y 10 depends on TOYBOX_FIFREEZE 11 help 12 usage: fsfreeze {-f | -u} MOUNTPOINT 13 14 Freeze or unfreeze a filesystem. 15 16 -f freeze 17 -u unfreeze 18 */ 19 20 #define FOR_fsfreeze 21 #include "toys.h" 22 #include <linux/fs.h> 23 24 void fsfreeze_main(void) 25 { 26 int fd = xopen(*toys.optargs, O_RDONLY); 27 long p = 1; 28 29 xioctl(fd, (toys.optflags & FLAG_f) ? FIFREEZE : FITHAW, &p); 30 xclose(fd); 31 } 32
