view toys/other/swapon.c @ 1322:b91284c2e569 draft

Make "losetup /dev/loop0 filename" work. Sigh. Implement the complex cases and you screw up the simple cases you already tested...
author Rob Landley <>
date Thu, 29 May 2014 06:29:12 -0500
parents 786841fdb1e0
children 57f2a26fa92c
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/* swapon.c - Enable region for swapping
 * Copyright 2012 Elie De Brauwer <>


config SWAPON
  bool "swapon"
  default y
    usage: swapon [-p priority] filename

    Enable swapping on a given device/file.

#define FOR_swapon
#include "toys.h"

  long priority;

void swapon_main(void)
  int flags = 0;

  if (toys.optflags)
    flags = SWAP_FLAG_PREFER | (TT.priority << SWAP_FLAG_PRIO_SHIFT);

  if (swapon(*toys.optargs, flags))
    perror_exit("Couldn't swapon '%s'", *toys.optargs);