#ifndef _LUSTRE_DLM_H__
#define _LUSTRE_DLM_H__
+/** \defgroup ldlm ldlm
+ *
+ * @{
+ */
+
#if defined(__linux__)
#include <linux/lustre_dlm.h>
#elif defined(__APPLE__)
/* 1.5 times the maximum 128 tasks available in VN mode */
#define LDLM_DEFAULT_LRU_SIZE 196
#else
-#define LDLM_DEFAULT_LRU_SIZE (100 * num_online_cpus())
+#define LDLM_DEFAULT_LRU_SIZE (100 * cfs_num_online_cpus())
#endif
#define LDLM_DEFAULT_MAX_ALIVE (cfs_time_seconds(36000))
#define LDLM_CTIME_AGE_LIMIT (10)
#define LDLM_FL_REPLAY 0x000100
#define LDLM_FL_INTENT_ONLY 0x000200 /* don't grant lock, just do intent */
-#define LDLM_FL_LOCAL_ONLY 0x000400 /* see ldlm_cli_cancel_unused */
+#define LDLM_FL_LOCAL_ONLY 0x000400
/* don't run the cancel callback under ldlm_cli_cancel_unused */
#define LDLM_FL_FAILED 0x000800
#define LDLM_FL_HAS_INTENT 0x001000 /* lock request has intent */
#define LDLM_FL_CANCELING 0x002000 /* lock cancel has already been sent */
#define LDLM_FL_LOCAL 0x004000 /* local lock (ie, no srv/cli split) */
-#define LDLM_FL_WARN 0x008000 /* see ldlm_cli_cancel_unused */
+/* was LDLM_FL_WARN until 2.0.0 0x008000 */
#define LDLM_FL_DISCARD_DATA 0x010000 /* discard (no writeback) on cancel */
#define LDLM_FL_NO_TIMEOUT 0x020000 /* Blocked by group lock - wait
* w/o involving separate thread. in order to decrease cs rate */
#define LDLM_FL_ATOMIC_CB 0x4000000
-/* Cancel lock asynchronously. See ldlm_cli_cancel_unused_resource. */
-#define LDLM_FL_ASYNC 0x8000000
+/* was LDLM_FL_ASYNC until 2.0.0 0x8000000 */
/* It may happen that a client initiate 2 operations, e.g. unlink and mkdir,
* such that server send blocking ast for conflict locks to this client for
/* Flags sent in AST lock_flags to be mapped into the receiving lock. */
#define LDLM_AST_FLAGS (LDLM_FL_DISCARD_DATA)
-/*
+/*
* --------------------------------------------------------------------------
* NOTE! Starting from this point, that is, LDLM_FL_* flags with values above
* 0x80000000 will not be sent over the wire.
#define LDLM_POOLS_THREAD_PERIOD (1)
/**
- * 5% margin for modest pools. See ldlm_pool.c for details.
+ * ~6% margin for modest pools. See ldlm_pool.c for details.
*/
-#define LDLM_POOLS_MODEST_MARGIN (5)
+#define LDLM_POOLS_MODEST_MARGIN_SHIFT (4)
/**
* Default recalc period for server side pools in sec.
/**
* Lock for protecting slv/clv updates.
*/
- spinlock_t pl_lock;
+ cfs_spinlock_t pl_lock;
/**
* Number of allowed locks in in pool, both, client and server side.
*/
- atomic_t pl_limit;
+ cfs_atomic_t pl_limit;
/**
* Number of granted locks in
*/
- atomic_t pl_granted;
+ cfs_atomic_t pl_granted;
/**
* Grant rate per T.
*/
- atomic_t pl_grant_rate;
+ cfs_atomic_t pl_grant_rate;
/**
* Cancel rate per T.
*/
- atomic_t pl_cancel_rate;
+ cfs_atomic_t pl_cancel_rate;
/**
* Grant speed (GR-CR) per T.
*/
- atomic_t pl_grant_speed;
+ cfs_atomic_t pl_grant_speed;
/**
* Server lock volume. Protected by pl_lock.
*/
* Lock volume factor. SLV on client is calculated as following:
* server_slv * lock_volume_factor.
*/
- atomic_t pl_lock_volume_factor;
+ cfs_atomic_t pl_lock_volume_factor;
/**
* Time when last slv from server was obtained.
*/
int (*lvbo_init)(struct ldlm_resource *res);
int (*lvbo_update)(struct ldlm_resource *res,
struct ptlrpc_request *r,
- int buf_idx, int increase);
+ int increase);
};
typedef enum {
/**
* Hash table for namespace.
*/
- struct list_head *ns_hash;
- spinlock_t ns_hash_lock;
+ cfs_list_t *ns_hash;
+ cfs_spinlock_t ns_hash_lock;
/**
* Count of resources in the hash.
/**
* All root resources in namespace.
*/
- struct list_head ns_root_list;
+ cfs_list_t ns_root_list;
/**
* Position in global namespace list.
*/
- struct list_head ns_list_chain;
+ cfs_list_t ns_list_chain;
/**
* All root resources in namespace.
*/
- struct list_head ns_unused_list;
+ cfs_list_t ns_unused_list;
int ns_nr_unused;
- spinlock_t ns_unused_lock;
+ cfs_spinlock_t ns_unused_lock;
unsigned int ns_max_unused;
unsigned int ns_max_age;
*/
cfs_time_t ns_next_dump;
- atomic_t ns_locks;
+ cfs_atomic_t ns_locks;
__u64 ns_resources;
ldlm_res_policy ns_policy;
struct ldlm_valblock_ops *ns_lvbo;
/* Interval node data for each LDLM_EXTENT lock */
struct ldlm_interval {
struct interval_node li_node; /* node for tree mgmt */
- struct list_head li_group; /* the locks which have the same
+ cfs_list_t li_group; /* the locks which have the same
* policy - group of the policy */
};
#define to_ldlm_interval(n) container_of(n, struct ldlm_interval, li_node)
#define LUSTRE_TRACKS_LOCK_EXP_REFS (1)
+/* Cancel flag. */
+typedef enum {
+ LCF_ASYNC = 0x1, /* Cancel locks asynchronously. */
+ LCF_LOCAL = 0x2, /* Cancel locks locally, not notifing server */
+ LCF_BL_AST = 0x4, /* Cancel locks marked as LDLM_FL_BL_AST
+ * in the same RPC */
+} ldlm_cancel_flags_t;
+
struct ldlm_lock {
/**
* Must be first in the structure.
/**
* Lock reference count.
*/
- atomic_t l_refc;
+ cfs_atomic_t l_refc;
/**
* Internal spinlock protects l_resource. we should hold this lock
* first before grabbing res_lock.
*/
- spinlock_t l_lock;
+ cfs_spinlock_t l_lock;
/**
* ldlm_lock_change_resource() can change this.
*/
/**
* Protected by ns_hash_lock. List item for client side lru list.
*/
- struct list_head l_lru;
+ cfs_list_t l_lru;
/**
* Protected by lr_lock, linkage to resource's lock queues.
*/
- struct list_head l_res_link;
+ cfs_list_t l_res_link;
/**
* Tree node for ldlm_extent.
*/
* Protected by per-bucket exp->exp_lock_hash locks. Per export hash
* of locks.
*/
- struct hlist_node l_exp_hash;
+ cfs_hlist_node_t l_exp_hash;
/**
* Protected by lr_lock. Requested mode.
*/
struct lustre_handle l_remote_handle;
ldlm_policy_data_t l_policy_data;
- /* traffic index indicating how busy the resource will be, if it is
- * high, the lock's granted region will not be so big lest it conflicts
- * other locks, causing frequent lock cancellation and re-enqueue */
- int l_traffic;
/*
* Protected by lr_lock. Various counters: readers, writers, etc.
*/
cfs_waitq_t l_waitq;
- /**
- * Seconds. it will be updated if there is any activity related to
+ /**
+ * Seconds. it will be updated if there is any activity related to
* the lock, e.g. enqueue the lock or send block AST.
*/
cfs_time_t l_last_activity;
*/
__u32 l_lvb_len;
void *l_lvb_data;
- void *l_lvb_swabber;
void *l_ast_data;
- spinlock_t l_extents_list_lock;
- struct list_head l_extents_list;
+ cfs_spinlock_t l_extents_list_lock;
+ cfs_list_t l_extents_list;
- struct list_head l_cache_locks_list;
+ cfs_list_t l_cache_locks_list;
/*
* Server-side-only members.
/**
* Protected by elt_lock. Callbacks pending.
*/
- struct list_head l_pending_chain;
+ cfs_list_t l_pending_chain;
cfs_time_t l_callback_timeout;
/**
* For ldlm_add_ast_work_item().
*/
- struct list_head l_bl_ast;
+ cfs_list_t l_bl_ast;
/**
* For ldlm_add_ast_work_item().
*/
- struct list_head l_cp_ast;
+ cfs_list_t l_cp_ast;
/**
* For ldlm_add_ast_work_item().
*/
- struct list_head l_rk_ast;
+ cfs_list_t l_rk_ast;
struct ldlm_lock *l_blocking_lock;
int l_bl_ast_run;
/**
* Protected by lr_lock, linkages to "skip lists".
*/
- struct list_head l_sl_mode;
- struct list_head l_sl_policy;
+ cfs_list_t l_sl_mode;
+ cfs_list_t l_sl_policy;
struct lu_ref l_reference;
#if LUSTRE_TRACKS_LOCK_EXP_REFS
/* Debugging stuff for bug 20498, for tracking export
/** number of export references taken */
int l_exp_refs_nr;
/** link all locks referencing one export */
- struct list_head l_exp_refs_link;
+ cfs_list_t l_exp_refs_link;
/** referenced export object */
struct obd_export *l_exp_refs_target;
#endif
struct ldlm_namespace *lr_namespace;
/* protected by ns_hash_lock */
- struct list_head lr_hash;
+ cfs_list_t lr_hash;
struct ldlm_resource *lr_parent; /* 0 for a root resource */
- struct list_head lr_children; /* list head for child resources */
- struct list_head lr_childof; /* part of ns_root_list if root res,
+ cfs_list_t lr_children; /* list head for child resources */
+ cfs_list_t lr_childof; /* part of ns_root_list if root res,
* part of lr_children if child */
- spinlock_t lr_lock;
+ cfs_spinlock_t lr_lock;
/* protected by lr_lock */
- struct list_head lr_granted;
- struct list_head lr_converting;
- struct list_head lr_waiting;
+ cfs_list_t lr_granted;
+ cfs_list_t lr_converting;
+ cfs_list_t lr_waiting;
ldlm_mode_t lr_most_restr;
ldlm_type_t lr_type; /* LDLM_{PLAIN,EXTENT,FLOCK} */
struct ldlm_res_id lr_name;
- atomic_t lr_refcount;
+ cfs_atomic_t lr_refcount;
struct ldlm_interval_tree lr_itree[LCK_MODE_NUM]; /* interval trees*/
/* Server-side-only lock value block elements */
- struct semaphore lr_lvb_sem;
+ cfs_semaphore_t lr_lvb_sem;
__u32 lr_lvb_len;
void *lr_lvb_data;
};
struct ldlm_ast_work {
- struct ldlm_lock *w_lock;
- int w_blocking;
- struct ldlm_lock_desc w_desc;
- struct list_head w_list;
- int w_flags;
- void *w_data;
- int w_datalen;
+ struct ldlm_lock *w_lock;
+ int w_blocking;
+ struct ldlm_lock_desc w_desc;
+ cfs_list_t w_list;
+ int w_flags;
+ void *w_data;
+ int w_datalen;
};
/* ldlm_enqueue parameters common */
extern char *ldlm_it2str(int it);
#ifdef LIBCFS_DEBUG
#define ldlm_lock_debug(cdls, level, lock, file, func, line, fmt, a...) do { \
- CHECK_STACK(); \
+ CFS_CHECK_STACK(); \
\
if (((level) & D_CANTMASK) != 0 || \
((libcfs_debug & (level)) != 0 && \
typedef int (*ldlm_processing_policy)(struct ldlm_lock *lock, int *flags,
int first_enq, ldlm_error_t *err,
- struct list_head *work_list);
+ cfs_list_t *work_list);
/*
* Iterators.
ldlm_res_iterator_t iter, void *closure);
int ldlm_replay_locks(struct obd_import *imp);
-void ldlm_resource_iterate(struct ldlm_namespace *, const struct ldlm_res_id *,
+int ldlm_resource_iterate(struct ldlm_namespace *, const struct ldlm_res_id *,
ldlm_iterator_t iter, void *data);
/* ldlm_flock.c */
}
static inline int ldlm_res_lvbo_update(struct ldlm_resource *res,
- struct ptlrpc_request *r, int buf_idx,
- int increase)
+ struct ptlrpc_request *r, int increase)
{
if (res->lr_namespace->ns_lvbo &&
res->lr_namespace->ns_lvbo->lvbo_update) {
- return res->lr_namespace->ns_lvbo->lvbo_update(res, r, buf_idx,
+ return res->lr_namespace->ns_lvbo->lvbo_update(res, r,
increase);
}
return 0;
lock; \
})
-#define ldlm_lock_list_put(head, member, count) \
-({ \
- struct ldlm_lock *_lock, *_next; \
- int c = count; \
- list_for_each_entry_safe(_lock, _next, head, member) { \
- if (c-- == 0) \
- break; \
- list_del_init(&_lock->member); \
- LDLM_LOCK_RELEASE(_lock); \
- } \
- LASSERT(c <= 0); \
+#define ldlm_lock_list_put(head, member, count) \
+({ \
+ struct ldlm_lock *_lock, *_next; \
+ int c = count; \
+ cfs_list_for_each_entry_safe(_lock, _next, head, member) { \
+ if (c-- == 0) \
+ break; \
+ cfs_list_del_init(&_lock->member); \
+ LDLM_LOCK_RELEASE(_lock); \
+ } \
+ LASSERT(c <= 0); \
})
struct ldlm_lock *ldlm_lock_get(struct ldlm_lock *lock);
ldlm_type_t type, int create);
struct ldlm_resource *ldlm_resource_getref(struct ldlm_resource *res);
int ldlm_resource_putref(struct ldlm_resource *res);
-void ldlm_resource_add_lock(struct ldlm_resource *res, struct list_head *head,
+void ldlm_resource_add_lock(struct ldlm_resource *res,
+ cfs_list_t *head,
struct ldlm_lock *lock);
void ldlm_resource_unlink_lock(struct ldlm_lock *lock);
void ldlm_res2desc(struct ldlm_resource *res, struct ldlm_resource_desc *desc);
int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
struct ldlm_enqueue_info *einfo,
const struct ldlm_res_id *res_id,
- ldlm_policy_data_t *policy, int *flags,
- void *lvb, __u32 lvb_len, void *lvb_swabber,
- struct lustre_handle *lockh, int async);
+ ldlm_policy_data_t const *policy, int *flags,
+ void *lvb, __u32 lvb_len, struct lustre_handle *lockh,
+ int async);
int ldlm_prep_enqueue_req(struct obd_export *exp,
struct ptlrpc_request *req,
- struct list_head *cancels,
+ cfs_list_t *cancels,
int count);
int ldlm_prep_elc_req(struct obd_export *exp,
struct ptlrpc_request *req,
int version, int opc, int canceloff,
- struct list_head *cancels, int count);
+ cfs_list_t *cancels, int count);
int ldlm_handle_enqueue0(struct ldlm_namespace *ns, struct ptlrpc_request *req,
const struct ldlm_request *dlm_req,
const struct ldlm_callback_suite *cbs);
int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
ldlm_type_t type, __u8 with_policy, ldlm_mode_t mode,
int *flags, void *lvb, __u32 lvb_len,
- void *lvb_swabber, struct lustre_handle *lockh,
- int rc);
+ struct lustre_handle *lockh, int rc);
int ldlm_cli_enqueue_local(struct ldlm_namespace *ns,
const struct ldlm_res_id *res_id,
ldlm_type_t type, ldlm_policy_data_t *policy,
ldlm_blocking_callback blocking,
ldlm_completion_callback completion,
ldlm_glimpse_callback glimpse,
- void *data, __u32 lvb_len, void *lvb_swabber,
+ void *data, __u32 lvb_len,
const __u64 *client_cookie,
struct lustre_handle *lockh);
int ldlm_server_ast(struct lustre_handle *lockh, struct ldlm_lock_desc *new,
const struct ldlm_request *dlm_req);
int ldlm_cli_cancel(struct lustre_handle *lockh);
int ldlm_cli_cancel_unused(struct ldlm_namespace *, const struct ldlm_res_id *,
- int flags, void *opaque);
+ ldlm_cancel_flags_t flags, void *opaque);
int ldlm_cli_cancel_unused_resource(struct ldlm_namespace *ns,
const struct ldlm_res_id *res_id,
ldlm_policy_data_t *policy,
- ldlm_mode_t mode, int flags, void *opaque);
-int ldlm_cli_cancel_req(struct obd_export *exp, struct list_head *head,
- int count, int flags);
+ ldlm_mode_t mode,
+ ldlm_cancel_flags_t flags,
+ void *opaque);
+int ldlm_cli_cancel_req(struct obd_export *exp, cfs_list_t *head,
+ int count, ldlm_cancel_flags_t flags);
int ldlm_cancel_resource_local(struct ldlm_resource *res,
- struct list_head *cancels,
+ cfs_list_t *cancels,
ldlm_policy_data_t *policy,
ldlm_mode_t mode, int lock_flags,
- int cancel_flags, void *opaque);
-int ldlm_cli_cancel_list(struct list_head *head, int count,
- struct ptlrpc_request *req, int flags);
+ ldlm_cancel_flags_t cancel_flags, void *opaque);
+int ldlm_cli_cancel_list_local(cfs_list_t *cancels, int count,
+ ldlm_cancel_flags_t flags);
+int ldlm_cli_cancel_list(cfs_list_t *head, int count,
+ struct ptlrpc_request *req, ldlm_cancel_flags_t flags);
/* mds/handler.c */
/* This has to be here because recursive inclusion sucks. */
static inline void lock_res(struct ldlm_resource *res)
{
- spin_lock(&res->lr_lock);
+ cfs_spin_lock(&res->lr_lock);
}
static inline void lock_res_nested(struct ldlm_resource *res,
enum lock_res_type mode)
{
- spin_lock_nested(&res->lr_lock, mode);
+ cfs_spin_lock_nested(&res->lr_lock, mode);
}
static inline void unlock_res(struct ldlm_resource *res)
{
- spin_unlock(&res->lr_lock);
+ cfs_spin_unlock(&res->lr_lock);
}
static inline void check_res_locked(struct ldlm_resource *res)
void ldlm_pool_set_limit(struct ldlm_pool *pl, __u32 limit);
void ldlm_pool_add(struct ldlm_pool *pl, struct ldlm_lock *lock);
void ldlm_pool_del(struct ldlm_pool *pl, struct ldlm_lock *lock);
+
+/** @} ldlm */
+
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff