From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- fs/dlm/lock.h | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 fs/dlm/lock.h (limited to 'fs/dlm/lock.h') diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h new file mode 100644 index 000000000..40c76b554 --- /dev/null +++ b/fs/dlm/lock.h @@ -0,0 +1,95 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/****************************************************************************** +******************************************************************************* +** +** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved. +** +** +******************************************************************************* +******************************************************************************/ + +#ifndef __LOCK_DOT_H__ +#define __LOCK_DOT_H__ + +void dlm_dump_rsb(struct dlm_rsb *r); +void dlm_dump_rsb_name(struct dlm_ls *ls, char *name, int len); +void dlm_print_lkb(struct dlm_lkb *lkb); +void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms, + uint32_t saved_seq); +void dlm_receive_buffer(union dlm_packet *p, int nodeid); +int dlm_modes_compat(int mode1, int mode2); +void dlm_put_rsb(struct dlm_rsb *r); +void dlm_hold_rsb(struct dlm_rsb *r); +int dlm_put_lkb(struct dlm_lkb *lkb); +void dlm_scan_rsbs(struct dlm_ls *ls); +int dlm_lock_recovery_try(struct dlm_ls *ls); +void dlm_unlock_recovery(struct dlm_ls *ls); + +#ifdef CONFIG_DLM_DEPRECATED_API +void dlm_scan_timeout(struct dlm_ls *ls); +void dlm_adjust_timeouts(struct dlm_ls *ls); +#else +static inline void dlm_scan_timeout(struct dlm_ls *ls) { } +static inline void dlm_adjust_timeouts(struct dlm_ls *ls) { } +#endif + +int dlm_master_lookup(struct dlm_ls *ls, int nodeid, char *name, int len, + unsigned int flags, int *r_nodeid, int *result); + +int dlm_search_rsb_tree(struct rb_root *tree, const void *name, int len, + struct dlm_rsb **r_ret); + +void dlm_recover_purge(struct dlm_ls *ls); +void dlm_purge_mstcpy_locks(struct dlm_rsb *r); +void dlm_recover_grant(struct dlm_ls *ls); +int dlm_recover_waiters_post(struct dlm_ls *ls); +void dlm_recover_waiters_pre(struct dlm_ls *ls); +int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc); +int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc); + +#ifdef CONFIG_DLM_DEPRECATED_API +int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, + uint32_t flags, void *name, unsigned int namelen, + unsigned long timeout_cs); +int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, + int mode, uint32_t flags, uint32_t lkid, char *lvb_in, + unsigned long timeout_cs); +#else +int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, + uint32_t flags, void *name, unsigned int namelen); +int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, + int mode, uint32_t flags, uint32_t lkid, char *lvb_in); +#endif +int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, + int mode, uint32_t flags, void *name, unsigned int namelen, + uint32_t *lkid); +int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, + uint32_t flags, uint32_t lkid, char *lvb_in); +int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp, + uint32_t flags, uint32_t lkid); +int dlm_user_purge(struct dlm_ls *ls, struct dlm_user_proc *proc, + int nodeid, int pid); +int dlm_user_deadlock(struct dlm_ls *ls, uint32_t flags, uint32_t lkid); +void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); +int dlm_debug_add_lkb(struct dlm_ls *ls, uint32_t lkb_id, char *name, int len, + int lkb_nodeid, unsigned int lkb_flags, int lkb_status); +int dlm_debug_add_lkb_to_waiters(struct dlm_ls *ls, uint32_t lkb_id, + int mstype, int to_nodeid); + +static inline int is_master(struct dlm_rsb *r) +{ + return !r->res_nodeid; +} + +static inline void lock_rsb(struct dlm_rsb *r) +{ + mutex_lock(&r->res_mutex); +} + +static inline void unlock_rsb(struct dlm_rsb *r) +{ + mutex_unlock(&r->res_mutex); +} + +#endif + -- cgit v1.2.3