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Diffstat (limited to 'fs/dlm/lock.h')
-rw-r--r-- | fs/dlm/lock.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h new file mode 100644 index 0000000..0843a30 --- /dev/null +++ b/fs/dlm/lock.h @@ -0,0 +1,62 @@ +/****************************************************************************** +******************************************************************************* +** +** Copyright (C) 2005 Red Hat, Inc. All rights reserved. +** +** 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. +** +******************************************************************************* +******************************************************************************/ + +#ifndef __LOCK_DOT_H__ +#define __LOCK_DOT_H__ + +void dlm_print_rsb(struct dlm_rsb *r); +void dlm_dump_rsb(struct dlm_rsb *r); +void dlm_print_lkb(struct dlm_lkb *lkb); +int dlm_receive_message(struct dlm_header *hd, int nodeid, int recovery); +int dlm_modes_compat(int mode1, int mode2); +int dlm_find_rsb(struct dlm_ls *ls, char *name, int namelen, + unsigned int flags, struct dlm_rsb **r_ret); +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_purge_locks(struct dlm_ls *ls); +void dlm_purge_mstcpy_locks(struct dlm_rsb *r); +void dlm_grant_after_purge(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); + +int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode, + uint32_t flags, void *name, unsigned int namelen, uint32_t parent_lkid); +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); +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); +void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc); + +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 + |