1/* swapon.c - Enable region for swapping 2 * 3 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com> 4 5USE_SWAPON(NEWTOY(swapon, "<1>1p#<0>32767d", TOYFLAG_SBIN|TOYFLAG_NEEDROOT)) 6 7config SWAPON 8 bool "swapon" 9 default y 10 help 11 usage: swapon [-d] [-p priority] filename 12 13 Enable swapping on a given device/file. 14 15 -d Discard freed SSD pages 16 -p Priority (highest priority areas allocated first) 17*/ 18 19#define FOR_swapon 20#include "toys.h" 21 22GLOBALS( 23 long p; 24) 25 26void swapon_main(void) 27{ 28 // 0x70000 = SWAP_FLAG_DISCARD|SWAP_FLAG_DISCARD_ONCE|SWAP_FLAG_DISCARD_PAGES 29 int flags = (toys.optflags&FLAG_d)*0x70000; 30 31 if (toys.optflags) 32 flags |= SWAP_FLAG_PREFER | (TT.p << SWAP_FLAG_PRIO_SHIFT); 33 34 if (swapon(*toys.optargs, flags)) 35 perror_exit("Couldn't swapon '%s'", *toys.optargs); 36} 37