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/* freeramdisk.c - Free all memory allocated to ramdisk
*
* Copyright 2014 Vivek Kumar Bhagat <vivek.bhagat89@gmail.com>
*
* No Standard
USE_FREERAMDISK(NEWTOY(freeramdisk, "<1>1", TOYFLAG_SBIN|TOYFLAG_NEEDROOT))
config FREERAMDISK
bool "freeramdisk"
default n
help
usage: freeramdisk <RAM device>
Free all memory allocated to specified ramdisk
*/
#include "toys.h"
void freeramdisk_main(void)
{
int fd;
fd = xopen(toys.optargs[0], O_RDWR);
xioctl(fd, BLKFLSBUF, toys.optargs[0]);
xclose(fd);
}
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