xref: /freebsd/sys/contrib/openzfs/lib/libspl/page.c (revision 271171e0d97b88ba2a7c3bf750c9672b484c1c13)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or https://opensource.org/licenses/CDDL-1.0.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 
23 #include <unistd.h>
24 #include <sys/param.h>
25 
26 static size_t pagesize = 0;
27 
28 size_t
spl_pagesize(void)29 spl_pagesize(void)
30 {
31 	if (pagesize == 0)
32 		pagesize = sysconf(_SC_PAGESIZE);
33 
34 	return (pagesize);
35 }
36