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+/* Calls to enable and disable swapping on specified locations. Linux version.
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+ Copyright (C) 1996, 1998 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Library General Public License as
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+ published by the Free Software Foundation; either version 2 of the
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+ License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Library General Public License for more details.
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+
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+ You should have received a copy of the GNU Library General Public
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+ License along with the GNU C Library; see the file COPYING.LIB. If not,
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+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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+ Boston, MA 02111-1307, USA. */
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+
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+#ifndef _SYS_SWAP_H
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+
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+#define _SYS_SWAP_H 1
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+#include <features.h>
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+
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+/* The swap priority is encoded as:
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+ (prio << SWAP_FLAG_PRIO_SHIFT) & SWAP_FLAG_PRIO_MASK
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+*/
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+#define SWAP_FLAG_PREFER 0x8000 /* Set if swap priority is specified. */
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+#define SWAP_FLAG_PRIO_MASK 0x7fff
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+#define SWAP_FLAG_PRIO_SHIFT 0
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+
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+__BEGIN_DECLS
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+
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+/* Make the block special device PATH available to the system for swapping.
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+ This call is restricted to the super-user. */
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+extern int swapon __P ((__const char *__path, int __flags));
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+
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+/* Stop using block special device PATH for swapping. */
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+extern int swapoff __P ((__const char *__path));
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+
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+__END_DECLS
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+
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+#endif /* _SYS_SWAP_H */
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Eric Andersen