#define LDLM_DEFAULT_LRU_SIZE (100 * num_online_cpus())
#define LDLM_DEFAULT_MAX_ALIVE 3900 /* 3900 seconds ~65 min */
#define LDLM_CTIME_AGE_LIMIT (10)
+/* if client lock is unused for that time it can be cancelled if any other
+ * client shows interest in that lock, e.g. glimpse is occured. */
+#define LDLM_DIRTY_AGE_LIMIT (10)
#define LDLM_DEFAULT_PARALLEL_AST_LIMIT 1024
/**
struct completion pl_kobj_unregister;
};
-typedef int (*ldlm_res_policy)(struct ldlm_namespace *, struct ldlm_lock **,
- void *req_cookie, enum ldlm_mode mode,
- __u64 flags, void *data);
+typedef int (*ldlm_res_policy)(const struct lu_env *env,
+ struct ldlm_namespace *,
+ struct ldlm_lock **, void *req_cookie,
+ enum ldlm_mode mode, __u64 flags, void *data);
typedef int (*ldlm_cancel_cbt)(struct ldlm_lock *lock);
* of ldlm_[res_]lvbo_[init,update,fill]() functions.
*/
struct ldlm_valblock_ops {
- int (*lvbo_init)(struct ldlm_resource *res);
- int (*lvbo_update)(struct ldlm_resource *res, struct ldlm_lock *lock,
- struct ptlrpc_request *r, int increase);
+ int (*lvbo_init)(const struct lu_env *env, struct ldlm_resource *res);
+ int (*lvbo_update)(const struct lu_env *env, struct ldlm_resource *res,
+ struct ldlm_lock *lock, struct ptlrpc_request *r,
+ int increase);
int (*lvbo_free)(struct ldlm_resource *res);
/* Return size of lvb data appropriate RPC size can be reserved */
int (*lvbo_size)(struct ldlm_lock *lock);
/* Called to fill in lvb data to RPC buffer @buf */
- int (*lvbo_fill)(struct ldlm_lock *lock, void *buf, int buflen);
+ int (*lvbo_fill)(const struct lu_env *env, struct ldlm_lock *lock,
+ void *buf, int *buflen);
};
/**
/** Flag indicating if namespace is on client instead of server */
enum ldlm_side ns_client;
+ /** name of this namespace */
+ char *ns_name;
+
/** Resource hash table for namespace. */
struct cfs_hash *ns_rs_hash;
struct list_head ns_unused_list;
/** Number of locks in the LRU list above */
int ns_nr_unused;
+ struct list_head *ns_last_pos;
/**
* Maximum number of locks permitted in the LRU. If 0, means locks
* for a directory and may save an RPC for a later stat.
*/
time64_t ns_ctime_age_limit;
-
+ /**
+ * Number of seconds since the lock was last used. The client may
+ * cancel the lock limited by this age and flush related data if
+ * any other client shows interest in it doing glimpse request.
+ * This allows to cache stat data locally for such files early.
+ */
+ time64_t ns_dirty_age_limit;
/**
* Used to rate-limit ldlm_namespace_dump calls.
* \see ldlm_namespace_dump. Increased by 10 seconds every time
LCF_ASYNC = 0x1, /* Cancel locks asynchronously. */
LCF_LOCAL = 0x2, /* Cancel locks locally, not notifing server */
LCF_BL_AST = 0x4, /* Cancel LDLM_FL_BL_AST locks in the same RPC */
+ LCF_CONVERT = 0x8, /* Try to convert IBITS lock before cancel */
};
struct ldlm_flock {
wait_queue_head_t l_waitq;
/**
- * Seconds. It will be updated if there is any activity related to
- * the lock, e.g. enqueue the lock or send blocking AST.
- */
- time64_t l_last_activity;
-
- /**
* Time, in nanoseconds, last used by e.g. being matched by lock match.
*/
ktime_t l_last_used;
/** Private storage for lock user. Opaque to LDLM. */
void *l_ast_data;
+
+ union {
+ /**
+ * Seconds. It will be updated if there is any activity related to
+ * the lock at client, e.g. enqueue the lock. For server it is the
+ * time when blocking ast was sent.
+ */
+ time64_t l_activity;
+ time64_t l_blast_sent;
+ };
+
/* separate ost_lvb used mostly by Data-on-MDT for now.
* It is introduced to don't mix with layout lock data. */
struct ost_lvb l_ost_lvb;
* which is for server. */
#define l_slc_link l_rk_ast
+#define HANDLE_MAP_SIZE ((LMV_MAX_STRIPE_COUNT + 7) >> 3)
+
+struct lustre_handle_array {
+ unsigned int ha_count;
+ /* ha_map is used as bit flag to indicate handle is remote or local */
+ char ha_map[HANDLE_MAP_SIZE];
+ struct lustre_handle ha_handles[0];
+};
+
/**
* LDLM resource description.
* Basically, resource is a representation for a single object.
static inline char *
ldlm_ns_name(struct ldlm_namespace *ns)
{
- return ns->ns_rs_hash->hs_name;
+ return ns->ns_name;
}
static inline struct ldlm_namespace *
return &lock->l_resource->lr_ns_bucket->nsb_at_estimate;
}
-static inline int ldlm_lvbo_init(struct ldlm_resource *res)
+static inline int ldlm_lvbo_init(const struct lu_env *env,
+ struct ldlm_resource *res)
{
struct ldlm_namespace *ns = ldlm_res_to_ns(res);
int rc = 0;
mutex_unlock(&res->lr_lvb_mutex);
return 0;
}
- rc = ns->ns_lvbo->lvbo_init(res);
+ rc = ns->ns_lvbo->lvbo_init(env, res);
if (rc < 0) {
CDEBUG(D_DLMTRACE, "lvbo_init failed for resource : rc = %d\n",
rc);
return 0;
}
-static inline int ldlm_lvbo_fill(struct ldlm_lock *lock, void *buf, int len)
+static inline int ldlm_lvbo_fill(const struct lu_env *env,
+ struct ldlm_lock *lock, void *buf, int *len)
{
struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
int rc;
if (ns->ns_lvbo != NULL) {
LASSERT(ns->ns_lvbo->lvbo_fill != NULL);
/* init lvb now if not already */
- rc = ldlm_lvbo_init(lock->l_resource);
+ rc = ldlm_lvbo_init(env, lock->l_resource);
if (rc < 0) {
CERROR("lock %p: delayed lvb init failed (rc %d)",
lock, rc);
return rc;
}
- return ns->ns_lvbo->lvbo_fill(lock, buf, len);
+ return ns->ns_lvbo->lvbo_fill(env, lock, buf, len);
}
return 0;
}
void *ei_cb_gl; /** lock glimpse callback */
void *ei_cbdata; /** Data to be passed into callbacks. */
void *ei_namespace; /** lock namespace **/
+ u64 ei_inodebits; /** lock inode bits **/
unsigned int ei_enq_slave:1; /** whether enqueue slave stripes */
};
* Update Lock Value Block Operations (LVBO) on a resource taking into account
* data from request \a r
*/
-static inline int ldlm_lvbo_update(struct ldlm_resource *res,
+static inline int ldlm_lvbo_update(const struct lu_env *env,
+ struct ldlm_resource *res,
struct ldlm_lock *lock,
struct ptlrpc_request *req, int increase)
{
int rc;
/* delayed lvb init may be required */
- rc = ldlm_lvbo_init(res);
+ rc = ldlm_lvbo_init(env, res);
if (rc < 0) {
CERROR("delayed lvb init failed (rc %d)\n", rc);
return rc;
}
if (ns->ns_lvbo && ns->ns_lvbo->lvbo_update)
- return ns->ns_lvbo->lvbo_update(res, lock, req, increase);
+ return ns->ns_lvbo->lvbo_update(env, res, lock, req, increase);
return 0;
}
-static inline int ldlm_res_lvbo_update(struct ldlm_resource *res,
- struct ptlrpc_request *req, int increase)
+static inline int ldlm_res_lvbo_update(const struct lu_env *env,
+ struct ldlm_resource *res,
+ struct ptlrpc_request *req,
+ int increase)
{
- return ldlm_lvbo_update(res, NULL, req, increase);
+ return ldlm_lvbo_update(env, res, NULL, req, increase);
}
int ldlm_error2errno(enum ldlm_error error);
enum ldlm_mode mode, __u64 *flags, void *lvb,
__u32 lvb_len,
const struct lustre_handle *lockh, int rc);
-int ldlm_cli_enqueue_local(struct ldlm_namespace *ns,
+int ldlm_cli_enqueue_local(const struct lu_env *env,
+ struct ldlm_namespace *ns,
const struct ldlm_res_id *res_id,
enum ldlm_type type, union ldlm_policy_data *policy,
enum ldlm_mode mode, __u64 *flags,
void *data, __u32 lvb_len, enum lvb_type lvb_type,
const __u64 *client_cookie,
struct lustre_handle *lockh);
+int ldlm_cli_convert(struct ldlm_lock *lock, __u32 *flags);
int ldlm_cli_update_pool(struct ptlrpc_request *req);
int ldlm_cli_cancel(const struct lustre_handle *lockh,
enum ldlm_cancel_flags cancel_flags);
int ldlm_cli_cancel_list(struct list_head *head, int count,
struct ptlrpc_request *req,
enum ldlm_cancel_flags flags);
+
+int ldlm_inodebits_drop(struct ldlm_lock *lock, __u64 to_drop);
+int ldlm_cli_dropbits(struct ldlm_lock *lock, __u64 drop_bits);
+int ldlm_cli_dropbits_list(struct list_head *converts, __u64 drop_bits);
+
/** @} ldlm_cli_api */
/* mds/handler.c */
* There are not used outside of ldlm.
* @{
*/
-time64_t ldlm_pools_recalc(enum ldlm_side client);
int ldlm_pools_init(void);
void ldlm_pools_fini(void);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff