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Viewing changes to fs/ocfs2/dlm/userdlm.h

  • Committer: Bazaar Package Importer
  • Author(s): Ben Hutchings, Ben Hutchings, Aurelien Jarno, Martin Michlmayr
  • Date: 2011-04-06 13:53:30 UTC
  • mfrom: (43.1.5 sid)
  • Revision ID: james.westby@ubuntu.com-20110406135330-wjufxhd0tvn3zx4z
Tags: 2.6.38-3
http://bugs.debian.org/620124
http://bugs.debian.org/620284
http://bugs.debian.org/620204
[ Ben Hutchings ]
* [ppc64] Add to linux-tools package architectures (Closes: #620124)
* [amd64] Save cr4 to mmu_cr4_features at boot time (Closes: #620284)
* appletalk: Fix bugs introduced when removing use of BKL
* ALSA: Fix yet another race in disconnection
* cciss: Fix lost command issue
* ath9k: Fix kernel panic in AR2427
* ses: Avoid kernel panic when lun 0 is not mapped
* PCI/ACPI: Report ASPM support to BIOS if not disabled from command line

[ Aurelien Jarno ]
* rtlwifi: fix build when PCI is not enabled.

[ Martin Michlmayr ]
* rtlwifi: Eliminate udelay calls with too large values (Closes: #620204)

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fs/ocfs2/dlm/userdlm.h
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/* -*- mode: c; c-basic-offset: 8; -*-
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 * vim: noexpandtab sw=8 ts=8 sts=0:
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 *
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 * userdlm.h
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 *
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 * Userspace dlm defines
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 *
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 * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This program 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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 * General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public
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 * License along with this program; if not, write to the
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 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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 * Boston, MA 021110-1307, USA.
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 */
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#ifndef USERDLM_H
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#define USERDLM_H
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/types.h>
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#include <linux/workqueue.h>
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/* user_lock_res->l_flags flags. */
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#define USER_LOCK_ATTACHED      (0x00000001) /* we have initialized
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                                               * the lvb */
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#define USER_LOCK_BUSY          (0x00000002) /* we are currently in
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                                               * dlm_lock */
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#define USER_LOCK_BLOCKED       (0x00000004) /* blocked waiting to
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                                              * downconvert*/
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#define USER_LOCK_IN_TEARDOWN   (0x00000008) /* we're currently
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                                              * destroying this
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                                              * lock. */
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#define USER_LOCK_QUEUED        (0x00000010) /* lock is on the
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                                              * workqueue */
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#define USER_LOCK_IN_CANCEL     (0x00000020)
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struct user_lock_res {
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        spinlock_t               l_lock;
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        int                      l_flags;
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#define USER_DLM_LOCK_ID_MAX_LEN  32
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        char                     l_name[USER_DLM_LOCK_ID_MAX_LEN];
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        int                      l_namelen;
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        int                      l_level;
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        unsigned int             l_ro_holders;
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        unsigned int             l_ex_holders;
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        struct dlm_lockstatus    l_lksb;
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        int                      l_requested;
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        int                      l_blocking;
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        wait_queue_head_t        l_event;
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        struct work_struct       l_work;
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};
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extern struct workqueue_struct *user_dlm_worker;
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void user_dlm_lock_res_init(struct user_lock_res *lockres,
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                            struct dentry *dentry);
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int user_dlm_destroy_lock(struct user_lock_res *lockres);
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int user_dlm_cluster_lock(struct user_lock_res *lockres,
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                          int level,
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                          int lkm_flags);
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void user_dlm_cluster_unlock(struct user_lock_res *lockres,
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                             int level);
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void user_dlm_write_lvb(struct inode *inode,
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                        const char *val,
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                        unsigned int len);
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void user_dlm_read_lvb(struct inode *inode,
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                       char *val,
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                       unsigned int len);
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struct dlm_ctxt *user_dlm_register_context(struct qstr *name,
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                                           struct dlm_protocol_version *proto);
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void user_dlm_unregister_context(struct dlm_ctxt *dlm);
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struct dlmfs_inode_private {
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        struct dlm_ctxt             *ip_dlm;
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        struct user_lock_res ip_lockres; /* unused for directories. */
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        struct inode         *ip_parent;
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        struct inode         ip_vfs_inode;
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};
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static inline struct dlmfs_inode_private *
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DLMFS_I(struct inode *inode)
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{
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        return container_of(inode,
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                            struct dlmfs_inode_private,
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                            ip_vfs_inode);
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}
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struct dlmfs_filp_private {
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        int                  fp_lock_level;
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};
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#define DLMFS_MAGIC     0x76a9f425
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#endif /* USERDLM_H */