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      1 /*
      2  * Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved.
      3  *
      4  * This program is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU General Public License as
      6  * published by the Free Software Foundation; either version 2 of
      7  * the License, or (at your option) any later version.
      8  *
      9  * This program is distributed in the hope that it would be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     12  * GNU General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU General Public License
     15  * along with this program; if not, write the Free Software Foundation,
     16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     17  *
     18  * Author: Stanislav Kholmanskikh <stanislav.kholmanskikh (at) oracle.com>
     19  *
     20  */
     21 
     22 #include "test.h"
     23 #include "libswapon.h"
     24 
     25 /*
     26  * Make a swap file
     27  */
     28 void make_swapfile(void (cleanup)(void), const char *swapfile)
     29 {
     30 	if (!tst_fs_has_free(NULL, ".", sysconf(_SC_PAGESIZE) * 10,
     31 	    TST_BYTES)) {
     32 		tst_brkm(TBROK, cleanup,
     33 			"Insufficient disk space to create swap file");
     34 	}
     35 
     36 	/* create file */
     37 	if (tst_fill_file(swapfile, 0,
     38 			sysconf(_SC_PAGESIZE), 10) != 0) {
     39 		tst_brkm(TBROK, cleanup, "Failed to create swapfile");
     40 	}
     41 
     42 	/* make the file swapfile */
     43 	const char *argv[2 + 1];
     44 	argv[0] = "mkswap";
     45 	argv[1] = swapfile;
     46 	argv[2] = NULL;
     47 
     48 	tst_run_cmd(cleanup, argv, "/dev/null", "/dev/null", 0);
     49 }
     50