diff options
Diffstat (limited to 'toys/other/freeramdisk.c')
-rw-r--r-- | toys/other/freeramdisk.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/toys/other/freeramdisk.c b/toys/other/freeramdisk.c new file mode 100644 index 00000000..cb0b7f8f --- /dev/null +++ b/toys/other/freeramdisk.c @@ -0,0 +1,27 @@ +/* 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 y + 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]); + if (CFG_TOYBOX_FREE) xclose(fd); +} |