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/* fsfreeze.c - freeze or thaw filesystem
*
* No standard.
USE_FSFREEZE(NEWTOY(fsfreeze, "<1>1f|u|[!fu]", TOYFLAG_USR|TOYFLAG_SBIN))
config FSFREEZE
bool "fsfreeze"
default y
depends on TOYBOX_FIFREEZE
help
usage: fsfreeze {-f | -u} MOUNTPOINT
Freeze or unfreeze a filesystem.
-f Freeze
-u Unfreeze
*/
#define FOR_fsfreeze
#include "toys.h"
#include <linux/fs.h>
void fsfreeze_main(void)
{
int fd = xopenro(*toys.optargs);
long p = 1;
xioctl(fd, (toys.optflags & FLAG_f) ? FIFREEZE : FITHAW, &p);
xclose(fd);
}
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