#define OBD_LDLM_DEVICENAME "ldlm"
+#ifdef HAVE_BGL_SUPPORT
+/* 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())
+#endif
#define LDLM_DEFAULT_MAX_ALIVE (cfs_time_seconds(36000))
#define LDLM_CTIME_AGE_LIMIT (10)
* the 1st operation, whereas the 2nd operation has canceled this lock and
* is waiting for rpc_lock which is taken by the 1st operation.
* LDLM_FL_BL_AST is to be set by ldlm_callback_handler() to the lock not allow
- * ELC code to cancel it.
+ * ELC code to cancel it.
* LDLM_FL_BL_DONE is to be set by ldlm_cancel_callback() when lock cache is
* droped to let ldlm_callback_handler() return EINVAL to the server. It is
* used when ELC rpc is already prepared and is waiting for rpc_lock, too late
struct ldlm_pool_ops {
int (*po_recalc)(struct ldlm_pool *pl);
- int (*po_shrink)(struct ldlm_pool *pl, int nr,
+ int (*po_shrink)(struct ldlm_pool *pl, int nr,
unsigned int gfp_mask);
int (*po_setup)(struct ldlm_pool *pl, int limit);
};
#define LDLM_POOLS_FAST_SLV_CHANGE (50)
struct ldlm_pool {
- /**
- * Pool proc directory.
+ /**
+ * Pool proc directory.
*/
cfs_proc_dir_entry_t *pl_proc_dir;
/**
* Pool name, should be long enough to contain compound proc entry name.
*/
char pl_name[100];
- /**
- * Lock for protecting slv/clv updates.
+ /**
+ * Lock for protecting slv/clv updates.
*/
spinlock_t pl_lock;
/**
- * Number of allowed locks in in pool, both, client and server side.
+ * Number of allowed locks in in pool, both, client and server side.
*/
atomic_t pl_limit;
- /**
+ /**
* Number of granted locks in
*/
atomic_t pl_granted;
- /**
- * Grant rate per T.
+ /**
+ * Grant rate per T.
*/
atomic_t pl_grant_rate;
- /**
- * Cancel rate per T.
+ /**
+ * Cancel rate per T.
*/
atomic_t pl_cancel_rate;
- /**
- * Grant speed (GR-CR) per T.
+ /**
+ * Grant speed (GR-CR) per T.
*/
atomic_t pl_grant_speed;
- /**
+ /**
* Server lock volume. Protected by pl_lock.
*/
__u64 pl_server_lock_volume;
- /**
+ /**
* Current biggest client lock volume. Protected by pl_lock.
*/
__u64 pl_client_lock_volume;
- /**
+ /**
* Lock volume factor. SLV on client is calculated as following:
* server_slv * lock_volume_factor.
*/
atomic_t pl_lock_volume_factor;
- /**
- * Time when last slv from server was obtained.
+ /**
+ * Time when last slv from server was obtained.
*/
time_t pl_recalc_time;
/**
- * Recalc and shrink ops.
- */
+ * Recalc and shrink ops.
+ */
struct ldlm_pool_ops *pl_ops;
/**
* Planned number of granted locks for next T.
*/
int pl_grant_plan;
- /**
- * Grant plan step for next T.
+ /**
+ * Grant plan step for next T.
*/
int pl_grant_step;
- /**
- * Pool statistics.
+ /**
+ * Pool statistics.
*/
struct lprocfs_stats *pl_stats;
};
LDLM_NAMESPACE_MODEST = 1 << 1
} ldlm_appetite_t;
-/*
- * Default value for ->ns_shrink_thumb. If lock is not extent one its cost
+/*
+ * Default value for ->ns_shrink_thumb. If lock is not extent one its cost
* is one page. Here we have 256 pages which is 1M on i386. Thus by default
* all extent locks which have more than 1M long extent will be kept in lru,
- * others (including ibits locks) will be canceled on memory pressure event.
+ * others (including ibits locks) will be canceled on memory pressure event.
*/
#define LDLM_LOCK_SHRINK_THUMB 256
-/*
- * Default values for the "max_nolock_size", "contention_time" and
- * "contended_locks" namespace tunables.
+/*
+ * Default values for the "max_nolock_size", "contention_time" and
+ * "contended_locks" namespace tunables.
*/
#define NS_DEFAULT_MAX_NOLOCK_BYTES 0
#define NS_DEFAULT_CONTENTION_SECONDS 2
*/
char *ns_name;
- /**
- * Is this a client-side lock tree?
+ /**
+ * Is this a client-side lock tree?
*/
ldlm_side_t ns_client;
- /**
+ /**
* Namespce connect flags supported by server (may be changed via proc,
* lru resize may be disabled/enabled).
*/
__u64 ns_connect_flags;
- /**
- * Client side orig connect flags supported by server.
+ /**
+ * Client side orig connect flags supported by server.
*/
__u64 ns_orig_connect_flags;
- /**
+ /**
* Hash table for namespace.
*/
struct list_head *ns_hash;
spinlock_t ns_hash_lock;
/**
- * Count of resources in the hash.
+ * Count of resources in the hash.
*/
__u32 ns_refcount;
- /**
- * All root resources in namespace.
+ /**
+ * All root resources in namespace.
*/
struct list_head ns_root_list;
- /**
+ /**
* Position in global namespace list.
*/
- struct list_head ns_list_chain;
+ struct list_head ns_list_chain;
- /**
- * All root resources in namespace.
+ /**
+ * All root resources in namespace.
*/
- struct list_head ns_unused_list;
+ struct list_head ns_unused_list;
int ns_nr_unused;
spinlock_t ns_unused_lock;
* Seconds.
*/
unsigned int ns_ctime_age_limit;
-
- /**
+
+ /**
* Lower limit to number of pages in lock to keep it in cache.
*/
unsigned int ns_shrink_thumb;
struct ldlm_pool ns_pool;
ldlm_appetite_t ns_appetite;
- /**
+ /**
* If more than @ns_contented_locks found, the resource considered
* as contended.
*/
unsigned ns_contended_locks;
- /**
+ /**
* The resource remembers contended state during @ns_contention_time,
* in seconds.
*/
unsigned ns_contention_time;
- /**
+ /**
* Limit size of nolock requests, in bytes.
*/
unsigned ns_max_nolock_size;
/**
- * Backward link to obd, required for ldlm pool to store new SLV.
+ * Backward link to obd, required for ldlm pool to store new SLV.
*/
struct obd_device *ns_obd;
static inline int ns_is_client(struct ldlm_namespace *ns)
{
LASSERT(ns != NULL);
- LASSERT(!(ns->ns_client & ~(LDLM_NAMESPACE_CLIENT |
+ LASSERT(!(ns->ns_client & ~(LDLM_NAMESPACE_CLIENT |
LDLM_NAMESPACE_SERVER)));
LASSERT(ns->ns_client == LDLM_NAMESPACE_CLIENT ||
ns->ns_client == LDLM_NAMESPACE_SERVER);
static inline int ns_is_server(struct ldlm_namespace *ns)
{
LASSERT(ns != NULL);
- LASSERT(!(ns->ns_client & ~(LDLM_NAMESPACE_CLIENT |
+ LASSERT(!(ns->ns_client & ~(LDLM_NAMESPACE_CLIENT |
LDLM_NAMESPACE_SERVER)));
LASSERT(ns->ns_client == LDLM_NAMESPACE_CLIENT ||
ns->ns_client == LDLM_NAMESPACE_SERVER);
/* 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
+ struct list_head 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)
struct portals_handle l_handle; // must be first in the structure
atomic_t l_refc;
- /* internal spinlock protects l_resource. we should hold this lock
+ /* internal spinlock protects l_resource. we should hold this lock
* first before grabbing res_lock.*/
spinlock_t l_lock;
/* resource.c */
struct ldlm_namespace *
-ldlm_namespace_new(struct obd_device *obd, char *name,
+ldlm_namespace_new(struct obd_device *obd, char *name,
ldlm_side_t client, ldlm_appetite_t apt);
int ldlm_namespace_cleanup(struct ldlm_namespace *ns, int flags);
-void ldlm_namespace_free(struct ldlm_namespace *ns,
+void ldlm_namespace_free(struct ldlm_namespace *ns,
struct obd_import *imp, int force);
void ldlm_namespace_register(struct ldlm_namespace *ns, ldlm_side_t client);
void ldlm_namespace_unregister(struct ldlm_namespace *ns, ldlm_side_t client);
int cancel_flags, void *opaque);
int ldlm_cli_cancel_list(struct list_head *head, int count,
struct ptlrpc_request *req, int flags);
-
+
/* mds/handler.c */
/* This has to be here because recursive inclusion sucks. */
int intent_disposition(struct ldlm_reply *rep, int flag);
void ldlm_pools_fini(void);
void ldlm_pools_wakeup(void);
-int ldlm_pool_init(struct ldlm_pool *pl, struct ldlm_namespace *ns,
+int ldlm_pool_init(struct ldlm_pool *pl, struct ldlm_namespace *ns,
int idx, ldlm_side_t client);
-int ldlm_pool_shrink(struct ldlm_pool *pl, int nr,
+int ldlm_pool_shrink(struct ldlm_pool *pl, int nr,
unsigned int gfp_mask);
void ldlm_pool_fini(struct ldlm_pool *pl);
int ldlm_pool_setup(struct ldlm_pool *pl, int limit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff