linux/fs/dlm/ast.h
Alexander Aring 5ce9ef30f2 fs: dlm: move dlm_purge_lkb_callbacks to user module
This patch moves the dlm_purge_lkb_callbacks() function from ast to user
dlm module as it is only a function being used by dlm user
implementation. I got be hinted to hold specific locks regarding the
callback handling for dlm_purge_lkb_callbacks() but it was false
positive. It is confusing because ast dlm implementation uses a
different locking behaviour as user locks uses as DLM handles kernel and
user dlm locks differently. To avoid the confusing we move this function
to dlm user implementation.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
2023-06-14 10:17:33 -05:00

38 lines
1.4 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/******************************************************************************
*******************************************************************************
**
** Copyright (C) 2005-2010 Red Hat, Inc. All rights reserved.
**
**
*******************************************************************************
******************************************************************************/
#ifndef __ASTD_DOT_H__
#define __ASTD_DOT_H__
#define DLM_ENQUEUE_CALLBACK_NEED_SCHED 1
#define DLM_ENQUEUE_CALLBACK_SUCCESS 0
#define DLM_ENQUEUE_CALLBACK_FAILURE -1
int dlm_enqueue_lkb_callback(struct dlm_lkb *lkb, uint32_t flags, int mode,
int status, uint32_t sbflags);
#define DLM_DEQUEUE_CALLBACK_EMPTY 2
#define DLM_DEQUEUE_CALLBACK_LAST 1
#define DLM_DEQUEUE_CALLBACK_SUCCESS 0
int dlm_dequeue_lkb_callback(struct dlm_lkb *lkb, struct dlm_callback **cb);
void dlm_add_cb(struct dlm_lkb *lkb, uint32_t flags, int mode, int status,
uint32_t sbflags);
void dlm_callback_set_last_ptr(struct dlm_callback **from,
struct dlm_callback *to);
void dlm_release_callback(struct kref *ref);
void dlm_callback_work(struct work_struct *work);
int dlm_callback_start(struct dlm_ls *ls);
void dlm_callback_stop(struct dlm_ls *ls);
void dlm_callback_suspend(struct dlm_ls *ls);
void dlm_callback_resume(struct dlm_ls *ls);
#endif