diff options
Diffstat (limited to 'fs/dlm/dlm_internal.h')
| -rw-r--r-- | fs/dlm/dlm_internal.h | 430 |
1 files changed, 267 insertions, 163 deletions
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index e7665c31f7b1..d534a4bc162b 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -1,12 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /****************************************************************************** ******************************************************************************* ** ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. ** Copyright (C) 2004-2011 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. ** ******************************************************************************* ******************************************************************************/ @@ -18,7 +16,7 @@ * This is the main header file to be included in each DLM source file. */ -#include <linux/module.h> +#include <uapi/linux/dlm_device.h> #include <linux/slab.h> #include <linux/sched.h> #include <linux/types.h> @@ -36,20 +34,15 @@ #include <linux/kernel.h> #include <linux/jhash.h> #include <linux/miscdevice.h> +#include <linux/rhashtable.h> #include <linux/mutex.h> -#include <linux/idr.h> +#include <linux/xarray.h> #include <linux/ratelimit.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <linux/dlm.h> #include "config.h" -/* Size of the temp buffer midcomms allocates on the stack. - We try to make this large enough so most messages fit. - FIXME: should sctp make this unnecessary? */ - -#define DLM_INBUF_LEN 148 - struct dlm_ls; struct dlm_lkb; struct dlm_rsb; @@ -60,12 +53,25 @@ struct dlm_header; struct dlm_message; struct dlm_rcom; struct dlm_mhandle; +struct dlm_msg; #define log_print(fmt, args...) \ printk(KERN_ERR "dlm: "fmt"\n" , ##args) +#define log_print_ratelimited(fmt, args...) \ + printk_ratelimited(KERN_ERR "dlm: "fmt"\n", ##args) #define log_error(ls, fmt, args...) \ printk(KERN_ERR "dlm: %s: " fmt "\n", (ls)->ls_name , ##args) +#define log_rinfo(ls, fmt, args...) \ +do { \ + if (dlm_config.ci_log_info) \ + printk(KERN_INFO "dlm: %s: " fmt "\n", \ + (ls)->ls_name, ##args); \ + else if (dlm_config.ci_log_debug) \ + printk(KERN_DEBUG "dlm: %s: " fmt "\n", \ + (ls)->ls_name , ##args); \ +} while (0) + #define log_debug(ls, fmt, args...) \ do { \ if (dlm_config.ci_log_debug) \ @@ -90,22 +96,10 @@ do { \ __LINE__, __FILE__, #x, jiffies); \ {do} \ printk("\n"); \ - BUG(); \ panic("DLM: Record message above and reboot.\n"); \ } \ } - -#define DLM_RTF_SHRINK 0x00000001 - -struct dlm_rsbtable { - struct rb_root keep; - struct rb_root toss; - spinlock_t lock; - uint32_t flags; -}; - - /* * Lockspace member (per node in a ls) */ @@ -142,7 +136,6 @@ struct dlm_args { void (*bastfn) (void *astparam, int mode); int mode; struct dlm_lksb *lksb; - unsigned long timeout; }; @@ -192,33 +185,69 @@ struct dlm_args { #define DLM_LKSTS_GRANTED 2 #define DLM_LKSTS_CONVERT 3 -/* lkb_flags */ +/* lkb_iflags */ + +#define DLM_IFL_MSTCPY_BIT 16 +#define __DLM_IFL_MIN_BIT DLM_IFL_MSTCPY_BIT +#define DLM_IFL_RESEND_BIT 17 +#define DLM_IFL_DEAD_BIT 18 +#define DLM_IFL_OVERLAP_UNLOCK_BIT 19 +#define DLM_IFL_OVERLAP_CANCEL_BIT 20 +#define DLM_IFL_ENDOFLIFE_BIT 21 +#define DLM_IFL_DEADLOCK_CANCEL_BIT 24 +#define __DLM_IFL_MAX_BIT DLM_IFL_DEADLOCK_CANCEL_BIT -#define DLM_IFL_MSTCPY 0x00010000 -#define DLM_IFL_RESEND 0x00020000 -#define DLM_IFL_DEAD 0x00040000 -#define DLM_IFL_OVERLAP_UNLOCK 0x00080000 -#define DLM_IFL_OVERLAP_CANCEL 0x00100000 -#define DLM_IFL_ENDOFLIFE 0x00200000 -#define DLM_IFL_WATCH_TIMEWARN 0x00400000 -#define DLM_IFL_TIMEOUT_CANCEL 0x00800000 -#define DLM_IFL_DEADLOCK_CANCEL 0x01000000 -#define DLM_IFL_STUB_MS 0x02000000 /* magic number for m_flags */ -#define DLM_IFL_USER 0x00000001 -#define DLM_IFL_ORPHAN 0x00000002 +/* lkb_dflags */ -#define DLM_CALLBACKS_SIZE 6 +#define DLM_DFL_USER_BIT 0 +#define __DLM_DFL_MIN_BIT DLM_DFL_USER_BIT +#define DLM_DFL_ORPHAN_BIT 1 +#define __DLM_DFL_MAX_BIT DLM_DFL_ORPHAN_BIT #define DLM_CB_CAST 0x00000001 #define DLM_CB_BAST 0x00000002 -#define DLM_CB_SKIP 0x00000004 + +/* much of this is just saving user space pointers associated with the + * lock that we pass back to the user lib with an ast + */ + +struct dlm_user_args { + struct dlm_user_proc *proc; /* each process that opens the lockspace + * device has private data + * (dlm_user_proc) on the struct file, + * the process's locks point back to it + */ + struct dlm_lksb lksb; + struct dlm_lksb __user *user_lksb; + void __user *castparam; + void __user *castaddr; + void __user *bastparam; + void __user *bastaddr; + uint64_t xid; +}; struct dlm_callback { - uint64_t seq; uint32_t flags; /* DLM_CBF_ */ int sb_status; /* copy to lksb status */ uint8_t sb_flags; /* copy to lksb flags */ int8_t mode; /* rq mode of bast, gr mode of cast */ + bool copy_lvb; + struct dlm_lksb *lkb_lksb; + unsigned char lvbptr[DLM_USER_LVB_LEN]; + + union { + void *astparam; /* caller's ast arg */ + struct dlm_user_args ua; + }; + struct work_struct work; + void (*bastfn)(void *astparam, int mode); + void (*astfn)(void *astparam); + char res_name[DLM_RESNAME_MAXLEN]; + size_t res_length; + uint32_t ls_id; + uint32_t lkb_id; + + struct list_head list; }; struct dlm_lkb { @@ -229,8 +258,9 @@ struct dlm_lkb { uint32_t lkb_id; /* our lock ID */ uint32_t lkb_remid; /* lock ID on remote partner */ uint32_t lkb_exflags; /* external flags from caller */ - uint32_t lkb_sbflags; /* lksb flags */ - uint32_t lkb_flags; /* internal flags */ + unsigned long lkb_sbflags; /* lksb flags */ + unsigned long lkb_dflags; /* distributed flags */ + unsigned long lkb_iflags; /* internal flags */ uint32_t lkb_lvbseq; /* lvb sequence number */ int8_t lkb_status; /* granted, waiting, convert */ @@ -246,17 +276,12 @@ struct dlm_lkb { struct list_head lkb_rsb_lookup; /* waiting for rsb lookup */ struct list_head lkb_wait_reply; /* waiting for remote reply */ struct list_head lkb_ownqueue; /* list of locks for a process */ - struct list_head lkb_time_list; ktime_t lkb_timestamp; - ktime_t lkb_wait_time; - unsigned long lkb_timeout_cs; - - struct mutex lkb_cb_mutex; - struct work_struct lkb_cb_work; - struct list_head lkb_cb_list; /* for ls_cb_delay or proc->asts */ - struct dlm_callback lkb_callbacks[DLM_CALLBACKS_SIZE]; - struct dlm_callback lkb_last_cast; - struct dlm_callback lkb_last_bast; + + int8_t lkb_last_cast_cb_mode; + int8_t lkb_last_bast_cb_mode; + int8_t lkb_last_cb_mode; + uint8_t lkb_last_cb_flags; ktime_t lkb_last_cast_time; /* for debugging */ ktime_t lkb_last_bast_time; /* for debugging */ @@ -270,6 +295,7 @@ struct dlm_lkb { void *lkb_astparam; /* caller's ast arg */ struct dlm_user_args *lkb_ua; }; + struct rcu_head rcu; }; /* @@ -285,30 +311,30 @@ struct dlm_lkb { struct dlm_rsb { struct dlm_ls *res_ls; /* the lockspace */ struct kref res_ref; - struct mutex res_mutex; + spinlock_t res_lock; unsigned long res_flags; int res_length; /* length of rsb name */ int res_nodeid; int res_master_nodeid; int res_dir_nodeid; - int res_id; /* for ls_recover_idr */ + unsigned long res_id; /* for ls_recover_xa */ uint32_t res_lvbseq; uint32_t res_hash; - uint32_t res_bucket; /* rsbtbl */ unsigned long res_toss_time; uint32_t res_first_lkid; struct list_head res_lookup; /* lkbs waiting on first */ - union { - struct list_head res_hashchain; - struct rb_node res_hashnode; /* rsbtbl */ - }; + struct rhash_head res_node; /* rsbtbl */ struct list_head res_grantqueue; struct list_head res_convertqueue; struct list_head res_waitqueue; + struct list_head res_slow_list; /* ls_slow_* */ + struct list_head res_scan_list; struct list_head res_root_list; /* used for recovery */ + struct list_head res_masters_list; /* used for recovery */ struct list_head res_recover_list; /* used for recovery */ int res_recover_locks_count; + struct rcu_head rcu; char *res_lvbptr; char res_name[DLM_RESNAME_MAXLEN+1]; @@ -341,6 +367,8 @@ enum rsb_flags { RSB_RECOVER_CONVERT, RSB_RECOVER_GRANT, RSB_RECOVER_LVB_INVAL, + RSB_INACTIVE, + RSB_HASHED, /* set while rsb is on ls_rsbtbl */ }; static inline void rsb_set_flag(struct dlm_rsb *r, enum rsb_flags flag) @@ -362,23 +390,33 @@ static inline int rsb_flag(struct dlm_rsb *r, enum rsb_flags flag) /* dlm_header is first element of all structs sent between nodes */ #define DLM_HEADER_MAJOR 0x00030000 -#define DLM_HEADER_MINOR 0x00000001 +#define DLM_HEADER_MINOR 0x00000002 + +#define DLM_VERSION_3_1 0x00030001 +#define DLM_VERSION_3_2 0x00030002 #define DLM_HEADER_SLOTS 0x00000001 #define DLM_MSG 1 #define DLM_RCOM 2 +#define DLM_OPTS 3 +#define DLM_ACK 4 +#define DLM_FIN 5 struct dlm_header { - uint32_t h_version; - uint32_t h_lockspace; - uint32_t h_nodeid; /* nodeid of sender */ - uint16_t h_length; + __le32 h_version; + union { + /* for DLM_MSG and DLM_RCOM */ + __le32 h_lockspace; + /* for DLM_ACK and DLM_OPTS */ + __le32 h_seq; + } u; + __le32 h_nodeid; /* nodeid of sender */ + __le16 h_length; uint8_t h_cmd; /* DLM_MSG, DLM_RCOM */ uint8_t h_pad; }; - #define DLM_MSG_REQUEST 1 #define DLM_MSG_CONVERT 2 #define DLM_MSG_UNLOCK 3 @@ -396,25 +434,25 @@ struct dlm_header { struct dlm_message { struct dlm_header m_header; - uint32_t m_type; /* DLM_MSG_ */ - uint32_t m_nodeid; - uint32_t m_pid; - uint32_t m_lkid; /* lkid on sender */ - uint32_t m_remid; /* lkid on receiver */ - uint32_t m_parent_lkid; - uint32_t m_parent_remid; - uint32_t m_exflags; - uint32_t m_sbflags; - uint32_t m_flags; - uint32_t m_lvbseq; - uint32_t m_hash; - int m_status; - int m_grmode; - int m_rqmode; - int m_bastmode; - int m_asts; - int m_result; /* 0 or -EXXX */ - char m_extra[0]; /* name or lvb */ + __le32 m_type; /* DLM_MSG_ */ + __le32 m_nodeid; + __le32 m_pid; + __le32 m_lkid; /* lkid on sender */ + __le32 m_remid; /* lkid on receiver */ + __le32 m_parent_lkid; + __le32 m_parent_remid; + __le32 m_exflags; + __le32 m_sbflags; + __le32 m_flags; + __le32 m_lvbseq; + __le32 m_hash; + __le32 m_status; + __le32 m_grmode; + __le32 m_rqmode; + __le32 m_bastmode; + __le32 m_asts; + __le32 m_result; /* 0 or -EXXX */ + char m_extra[]; /* name or lvb */ }; @@ -438,18 +476,37 @@ struct dlm_message { struct dlm_rcom { struct dlm_header rc_header; - uint32_t rc_type; /* DLM_RCOM_ */ - int rc_result; /* multi-purpose */ - uint64_t rc_id; /* match reply with request */ - uint64_t rc_seq; /* sender's ls_recover_seq */ - uint64_t rc_seq_reply; /* remote ls_recover_seq */ - char rc_buf[0]; + __le32 rc_type; /* DLM_RCOM_ */ + __le32 rc_result; /* multi-purpose */ + __le64 rc_id; /* match reply with request */ + __le64 rc_seq; /* sender's ls_recover_seq */ + __le64 rc_seq_reply; /* remote ls_recover_seq */ + char rc_buf[]; +}; + +struct dlm_opt_header { + __le16 t_type; + __le16 t_length; + __le32 t_pad; + /* need to be 8 byte aligned */ + char t_value[]; +}; + +/* encapsulation header */ +struct dlm_opts { + struct dlm_header o_header; + uint8_t o_nextcmd; + uint8_t o_pad; + __le16 o_optlen; + __le32 o_pad2; + char o_opts[]; }; union dlm_packet { struct dlm_header header; /* common to other two */ struct dlm_message message; struct dlm_rcom rcom; + struct dlm_opts opts; }; #define DLM_RSF_NEED_SLOTS 0x00000001 @@ -499,55 +556,42 @@ struct rcom_lock { __le16 rl_wait_type; __le16 rl_namelen; char rl_name[DLM_RESNAME_MAXLEN]; - char rl_lvb[0]; + char rl_lvb[]; }; -/* - * The max number of resources per rsbtbl bucket that shrink will attempt - * to remove in each iteration. - */ - -#define DLM_REMOVE_NAMES_MAX 8 - struct dlm_ls { struct list_head ls_list; /* list of lockspaces */ - dlm_lockspace_t *ls_local_handle; uint32_t ls_global_id; /* global unique lockspace ID */ uint32_t ls_generation; uint32_t ls_exflags; int ls_lvblen; - int ls_count; /* refcount of processes in + atomic_t ls_count; /* refcount of processes in the dlm using this ls */ + wait_queue_head_t ls_count_wait; int ls_create_count; /* create/release refcount */ unsigned long ls_flags; /* LSFL_ */ - unsigned long ls_scan_time; struct kobject ls_kobj; - struct idr ls_lkbidr; - spinlock_t ls_lkbidr_spin; + struct xarray ls_lkbxa; + rwlock_t ls_lkbxa_lock; + + /* an rsb is on rsbtl for primary locking functions, + and on a slow list for recovery/dump iteration */ + struct rhashtable ls_rsbtbl; + rwlock_t ls_rsbtbl_lock; /* for ls_rsbtbl and ls_slow */ + struct list_head ls_slow_inactive; /* to iterate rsbtbl */ + struct list_head ls_slow_active; /* to iterate rsbtbl */ - struct dlm_rsbtable *ls_rsbtbl; - uint32_t ls_rsbtbl_size; + struct timer_list ls_scan_timer; /* based on first scan_list rsb toss_time */ + struct list_head ls_scan_list; /* rsbs ordered by res_toss_time */ + spinlock_t ls_scan_lock; - struct mutex ls_waiters_mutex; + spinlock_t ls_waiters_lock; struct list_head ls_waiters; /* lkbs needing a reply */ - struct mutex ls_orphans_mutex; + spinlock_t ls_orphans_lock; struct list_head ls_orphans; - struct mutex ls_timeout_mutex; - struct list_head ls_timeout; - - spinlock_t ls_new_rsb_spin; - int ls_new_rsb_count; - struct list_head ls_new_rsb; /* new rsb structs */ - - spinlock_t ls_remove_spin; - char ls_remove_name[DLM_RESNAME_MAXLEN+1]; - char *ls_remove_names[DLM_REMOVE_NAMES_MAX]; - int ls_remove_len; - int ls_remove_lens[DLM_REMOVE_NAMES_MAX]; - struct list_head ls_nodes; /* current nodes in ls */ struct list_head ls_nodes_gone; /* dead node list, recovery */ int ls_num_nodes; /* number of nodes in ls */ @@ -560,20 +604,21 @@ struct dlm_ls { int ls_slots_size; struct dlm_slot *ls_slots; - struct dlm_rsb ls_stub_rsb; /* for returning errors */ - struct dlm_lkb ls_stub_lkb; /* for returning errors */ - struct dlm_message ls_stub_ms; /* for faking a reply */ + struct dlm_rsb ls_local_rsb; /* for returning errors */ + struct dlm_lkb ls_local_lkb; /* for returning errors */ + struct dlm_message ls_local_ms; /* for faking a reply */ struct dentry *ls_debug_rsb_dentry; /* debugfs */ struct dentry *ls_debug_waiters_dentry; /* debugfs */ struct dentry *ls_debug_locks_dentry; /* debugfs */ struct dentry *ls_debug_all_dentry; /* debugfs */ struct dentry *ls_debug_toss_dentry; /* debugfs */ + struct dentry *ls_debug_queued_asts_dentry; /* debugfs */ wait_queue_head_t ls_uevent_wait; /* user part of join/leave */ int ls_uevent_result; - struct completion ls_members_done; - int ls_members_result; + struct completion ls_recovery_done; + int ls_recovery_result; struct miscdevice ls_device; @@ -581,9 +626,8 @@ struct dlm_ls { /* recovery related */ - struct mutex ls_cb_mutex; + spinlock_t ls_cb_lock; struct list_head ls_cb_delay; /* save for queue_work later */ - struct timer_list ls_timer; struct task_struct *ls_recoverd_task; struct mutex ls_recoverd_active; spinlock_t ls_recover_lock; @@ -592,33 +636,35 @@ struct dlm_ls { uint64_t ls_recover_seq; struct dlm_recover *ls_recover_args; struct rw_semaphore ls_in_recovery; /* block local requests */ - struct rw_semaphore ls_recv_active; /* block dlm_recv */ + rwlock_t ls_recv_active; /* block dlm_recv */ struct list_head ls_requestqueue;/* queue remote requests */ - struct mutex ls_requestqueue_mutex; + rwlock_t ls_requestqueue_lock; struct dlm_rcom *ls_recover_buf; int ls_recover_nodeid; /* for debugging */ - unsigned int ls_recover_dir_sent_res; /* for log info */ - unsigned int ls_recover_dir_sent_msg; /* for log info */ unsigned int ls_recover_locks_in; /* for log info */ uint64_t ls_rcom_seq; spinlock_t ls_rcom_spin; struct list_head ls_recover_list; spinlock_t ls_recover_list_lock; int ls_recover_list_count; - struct idr ls_recover_idr; - spinlock_t ls_recover_idr_lock; + struct xarray ls_recover_xa; + spinlock_t ls_recover_xa_lock; wait_queue_head_t ls_wait_general; wait_queue_head_t ls_recover_lock_wait; - struct mutex ls_clear_proc_locks; + spinlock_t ls_clear_proc_locks; - struct list_head ls_root_list; /* root resources */ - struct rw_semaphore ls_root_sem; /* protect root_list */ + struct list_head ls_masters_list; /* root resources */ + rwlock_t ls_masters_lock; /* protect root_list */ + struct list_head ls_dir_dump_list; /* root resources */ + rwlock_t ls_dir_dump_lock; /* protect root_list */ const struct dlm_lockspace_ops *ls_ops; void *ls_ops_arg; + struct work_struct ls_free_work; + int ls_namelen; - char ls_name[1]; + char ls_name[DLM_LOCKSPACE_LEN + 1]; }; /* @@ -652,26 +698,11 @@ struct dlm_ls { #define LSFL_RCOM_READY 5 #define LSFL_RCOM_WAIT 6 #define LSFL_UEVENT_WAIT 7 -#define LSFL_TIMEWARN 8 #define LSFL_CB_DELAY 9 #define LSFL_NODIR 10 - -/* much of this is just saving user space pointers associated with the - lock that we pass back to the user lib with an ast */ - -struct dlm_user_args { - struct dlm_user_proc *proc; /* each process that opens the lockspace - device has private data - (dlm_user_proc) on the struct file, - the process's locks point back to it*/ - struct dlm_lksb lksb; - struct dlm_lksb __user *user_lksb; - void __user *castparam; - void __user *castaddr; - void __user *bastparam; - void __user *bastaddr; - uint64_t xid; -}; +#define LSFL_RECV_MSG_BLOCKED 11 +#define LSFL_FS 12 +#define LSFL_SOFTIRQ 13 #define DLM_PROC_FLAGS_CLOSING 1 #define DLM_PROC_FLAGS_COMPAT 2 @@ -705,22 +736,95 @@ static inline int dlm_no_directory(struct dlm_ls *ls) return test_bit(LSFL_NODIR, &ls->ls_flags); } -int dlm_netlink_init(void); -void dlm_netlink_exit(void); -void dlm_timeout_warn(struct dlm_lkb *lkb); +/* takes a snapshot from dlm atomic flags */ +static inline uint32_t dlm_flags_val(const unsigned long *addr, + uint32_t min, uint32_t max) +{ + uint32_t bit = min, val = 0; + + for_each_set_bit_from(bit, addr, max + 1) { + val |= BIT(bit); + } + + return val; +} + +static inline uint32_t dlm_iflags_val(const struct dlm_lkb *lkb) +{ + return dlm_flags_val(&lkb->lkb_iflags, __DLM_IFL_MIN_BIT, + __DLM_IFL_MAX_BIT); +} + +static inline uint32_t dlm_dflags_val(const struct dlm_lkb *lkb) +{ + return dlm_flags_val(&lkb->lkb_dflags, __DLM_DFL_MIN_BIT, + __DLM_DFL_MAX_BIT); +} + +/* coming from UAPI header + * + * TODO: + * Move this to UAPI header and let other values point to them and use BIT() + */ +#define DLM_SBF_DEMOTED_BIT 0 +#define __DLM_SBF_MIN_BIT DLM_SBF_DEMOTED_BIT +#define DLM_SBF_VALNOTVALID_BIT 1 +#define DLM_SBF_ALTMODE_BIT 2 +#define __DLM_SBF_MAX_BIT DLM_SBF_ALTMODE_BIT + +static inline uint32_t dlm_sbflags_val(const struct dlm_lkb *lkb) +{ + /* be sure the next person updates this */ + BUILD_BUG_ON(BIT(__DLM_SBF_MAX_BIT) != DLM_SBF_ALTMODE); + + return dlm_flags_val(&lkb->lkb_sbflags, __DLM_SBF_MIN_BIT, + __DLM_SBF_MAX_BIT); +} + +static inline void dlm_set_flags_val(unsigned long *addr, uint32_t val, + uint32_t min, uint32_t max) +{ + uint32_t bit; + + for (bit = min; bit < (max + 1); bit++) { + if (val & BIT(bit)) + set_bit(bit, addr); + else + clear_bit(bit, addr); + } +} + +static inline void dlm_set_dflags_val(struct dlm_lkb *lkb, uint32_t val) +{ + dlm_set_flags_val(&lkb->lkb_dflags, val, __DLM_DFL_MIN_BIT, + __DLM_DFL_MAX_BIT); +} + +static inline void dlm_set_sbflags_val(struct dlm_lkb *lkb, uint32_t val) +{ + dlm_set_flags_val(&lkb->lkb_sbflags, val, __DLM_SBF_MIN_BIT, + __DLM_SBF_MAX_BIT); +} + +extern struct workqueue_struct *dlm_wq; + int dlm_plock_init(void); void dlm_plock_exit(void); #ifdef CONFIG_DLM_DEBUG -int dlm_register_debugfs(void); +void dlm_register_debugfs(void); void dlm_unregister_debugfs(void); -int dlm_create_debug_file(struct dlm_ls *ls); +void dlm_create_debug_file(struct dlm_ls *ls); void dlm_delete_debug_file(struct dlm_ls *ls); +void *dlm_create_debug_comms_file(int nodeid, void *data); +void dlm_delete_debug_comms_file(void *ctx); #else -static inline int dlm_register_debugfs(void) { return 0; } +static inline void dlm_register_debugfs(void) { } static inline void dlm_unregister_debugfs(void) { } -static inline int dlm_create_debug_file(struct dlm_ls *ls) { return 0; } +static inline void dlm_create_debug_file(struct dlm_ls *ls) { } static inline void dlm_delete_debug_file(struct dlm_ls *ls) { } +static inline void *dlm_create_debug_comms_file(int nodeid, void *data) { return NULL; } +static inline void dlm_delete_debug_comms_file(void *ctx) { } #endif #endif /* __DLM_INTERNAL_DOT_H__ */ |