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linux/fs/dlm/recover.h

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 193 Based on 1 normalized pattern(s): this copyrighted material is made available to anyone wishing to use modify copy or redistribute it subject to the terms and conditions of the gnu general public license v 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 45 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.342746075@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-29 00:57:20 +08:00
/* SPDX-License-Identifier: GPL-2.0-only */
[DLM] The core of the DLM for GFS2/CLVM This is the core of the distributed lock manager which is required to use GFS2 as a cluster filesystem. It is also used by CLVM and can be used as a standalone lock manager independantly of either of these two projects. It implements VAX-style locking modes. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steve Whitehouse <swhiteho@redhat.com>
2006-01-18 17:30:29 +08:00
/******************************************************************************
*******************************************************************************
**
** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
**
**
*******************************************************************************
******************************************************************************/
#ifndef __RECOVER_DOT_H__
#define __RECOVER_DOT_H__
int dlm_wait_function(struct dlm_ls *ls, int (*testfn) (struct dlm_ls *ls));
uint32_t dlm_recover_status(struct dlm_ls *ls);
void dlm_set_recover_status(struct dlm_ls *ls, uint32_t status);
fs: dlm: get recovery sequence number as parameter This patch removes a read of the ls->ls_recover_seq uint64_t number in _create_rcom(). If the ls->ls_recover_seq is readed the ls_recover_lock need to held. However this number was always readed before when any rcom message is received and it's not necessary to read it again from a per lockspace variable to use it for the replying message. This patch will pass the sequence number as parameter so another read of ls->ls_recover_seq and holding the ls->ls_recover_lock is not required. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
2023-08-02 02:09:45 +08:00
int dlm_recover_members_wait(struct dlm_ls *ls, uint64_t seq);
int dlm_recover_directory_wait(struct dlm_ls *ls, uint64_t seq);
int dlm_recover_locks_wait(struct dlm_ls *ls, uint64_t seq);
int dlm_recover_done_wait(struct dlm_ls *ls, uint64_t seq);
int dlm_recover_masters(struct dlm_ls *ls, uint64_t seq);
fs: dlm: constify receive buffer The dlm receive buffer should be never manipulated as DLM is the last instance of parsing layer. This patch constify the whole receive buffer so we are sure it never gets manipulated when it's being parsed. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
2023-08-02 02:09:48 +08:00
int dlm_recover_master_reply(struct dlm_ls *ls, const struct dlm_rcom *rc);
fs: dlm: get recovery sequence number as parameter This patch removes a read of the ls->ls_recover_seq uint64_t number in _create_rcom(). If the ls->ls_recover_seq is readed the ls_recover_lock need to held. However this number was always readed before when any rcom message is received and it's not necessary to read it again from a per lockspace variable to use it for the replying message. This patch will pass the sequence number as parameter so another read of ls->ls_recover_seq and holding the ls->ls_recover_lock is not required. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
2023-08-02 02:09:45 +08:00
int dlm_recover_locks(struct dlm_ls *ls, uint64_t seq);
[DLM] The core of the DLM for GFS2/CLVM This is the core of the distributed lock manager which is required to use GFS2 as a cluster filesystem. It is also used by CLVM and can be used as a standalone lock manager independantly of either of these two projects. It implements VAX-style locking modes. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steve Whitehouse <swhiteho@redhat.com>
2006-01-18 17:30:29 +08:00
void dlm_recovered_lock(struct dlm_rsb *r);
dlm: use rsbtbl as resource directory Remove the dir hash table (dirtbl), and use the rsb hash table (rsbtbl) as the resource directory. It has always been an unnecessary duplication of information. This improves efficiency by using a single rsbtbl lookup in many cases where both rsbtbl and dirtbl lookups were needed previously. This eliminates the need to handle cases of rsbtbl and dirtbl being out of sync. In many cases there will be memory savings because the dir hash table no longer exists. Signed-off-by: David Teigland <teigland@redhat.com>
2012-05-10 23:18:07 +08:00
void dlm_clear_toss(struct dlm_ls *ls);
[DLM] The core of the DLM for GFS2/CLVM This is the core of the distributed lock manager which is required to use GFS2 as a cluster filesystem. It is also used by CLVM and can be used as a standalone lock manager independantly of either of these two projects. It implements VAX-style locking modes. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steve Whitehouse <swhiteho@redhat.com>
2006-01-18 17:30:29 +08:00
void dlm_recover_rsbs(struct dlm_ls *ls);
#endif /* __RECOVER_DOT_H__ */
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