1 /* freeramdisk.c - Free all memory allocated to ramdisk 2 * 3 * Copyright 2014 Vivek Kumar Bhagat <vivek.bhagat89 (at) gmail.com> 4 * 5 * No Standard 6 7 USE_FREERAMDISK(NEWTOY(freeramdisk, "<1>1", TOYFLAG_SBIN|TOYFLAG_NEEDROOT)) 8 9 config FREERAMDISK 10 bool "freeramdisk" 11 default y 12 help 13 usage: freeramdisk [RAM device] 14 15 Free all memory allocated to specified ramdisk 16 */ 17 18 #include "toys.h" 19 20 void freeramdisk_main(void) 21 { 22 int fd; 23 24 fd = xopen(toys.optargs[0], O_RDWR); 25 xioctl(fd, BLKFLSBUF, toys.optargs[0]); 26 if (CFG_TOYBOX_FREE) xclose(fd); 27 } 28
