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author | attilio <attilio@FreeBSD.org> | 2013-02-06 18:04:28 +0000 |
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committer | attilio <attilio@FreeBSD.org> | 2013-02-06 18:04:28 +0000 |
commit | c02c27a33d936e06c7f7ab23fcddfe2c22e10ce7 (patch) | |
tree | a15cc8d50d96ae252ae4c1d203b06d4c321289e1 /sys/vm/_vm_radix.h | |
parent | d3fb98bfb460d0679cc1dcfdedb658c33bd61730 (diff) | |
download | FreeBSD-src-c02c27a33d936e06c7f7ab23fcddfe2c22e10ce7.zip FreeBSD-src-c02c27a33d936e06c7f7ab23fcddfe2c22e10ce7.tar.gz |
Avoid a namespace pollution in vm_object.h by defining separately the
structure for vm_radix implementation.
Diffstat (limited to 'sys/vm/_vm_radix.h')
-rw-r--r-- | sys/vm/_vm_radix.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sys/vm/_vm_radix.h b/sys/vm/_vm_radix.h new file mode 100644 index 0000000..7e68518 --- /dev/null +++ b/sys/vm/_vm_radix.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2011 Jeffrey Roberson <jeff@freebsd.org> + * Copyright (c) 2008 Mayur Shardul <mayur.shardul@gmail.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#ifndef __VM_RADIX_H_ +#define __VM_RADIX_H_ + +/* + * Radix tree root. The height and pointer are set together to permit + * coherent lookups while the root is modified. + */ +struct vm_radix { + uintptr_t rt_root; /* root + height */ +}; + +#endif /* !__VM_RADIX_H_ */ |