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  • Committer: Bazaar Package Importer
  • Author(s): Julian Andres Klode
  • Date: 2007-06-04 15:17:03 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20070604151703-ur9mjtbbpwoga2y6
Tags: 0+20070605-1
* New upstream snapshot
* Remove unionctl

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fs/aufs/branch.h
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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/* $Id: branch.h,v 1.29 2007/04/30 05:44:26 sfjro Exp $ */
 
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/* $Id: branch.h,v 1.30 2007/05/14 03:41:51 sfjro Exp $ */
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#ifndef __AUFS_BRANCH_H__
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#define __AUFS_BRANCH_H__
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#ifdef __KERNEL__
 
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#include <linux/fs.h>
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#include <linux/mount.h>
 
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#include <linux/version.h>
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#include <linux/aufs_type.h>
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#include "misc.h"
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#include "super.h"
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#ifdef __KERNEL__
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/* protected by superblock rwsem */
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struct aufs_branch {
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        struct file             *br_xino;
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/* ---------------------------------------------------------------------- */
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/*
 
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 * br_wh_read_lock, br_wh_write_lock
 
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 * br_wh_read_unlock, br_wh_write_unlock, br_wh_downgrade_lock
 
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 */
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SimpleRwsemFuncs(br_wh, struct aufs_branch *br, br->br_wh_rwsem);
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/* to debug easier, do not make them inlined functions */
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#define BrWhMustReadLock(br) do { \
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        /* SiMustAnyLock(sb); */ \
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        RwMustReadLock(&(br)->br_wh_rwsem); \