* @{
*/
-/*****************************************************************************
- *
- * Type conversions.
- *
- */
-
-static const struct cl_lock_operations osc_lock_ops;
-static const struct cl_lock_operations osc_lock_lockless_ops;
-static void osc_lock_to_lockless(const struct lu_env *env,
- struct osc_lock *ols, int force);
-
-int osc_lock_is_lockless(const struct osc_lock *olck)
-{
- return (olck->ols_cl.cls_ops == &osc_lock_lockless_ops);
-}
-
/**
* Returns a weak pointer to the ldlm lock identified by a handle. Returned
* pointer cannot be dereferenced, as lock is not protected from concurrent
*
*/
-static void osc_lock_fini(const struct lu_env *env,
- struct cl_lock_slice *slice)
+void osc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice)
{
struct osc_lock *ols = cl2osc_lock(slice);
OBD_SLAB_FREE_PTR(ols, osc_lock_kmem);
}
+EXPORT_SYMBOL(osc_lock_fini);
static void osc_lock_build_policy(const struct lu_env *env,
const struct cl_lock *lock,
policy->l_extent.gid = d->cld_gid;
}
-static __u64 osc_enq2ldlm_flags(__u32 enqflags)
-{
- __u64 result = 0;
-
- CDEBUG(D_DLMTRACE, "flags: %x\n", enqflags);
-
- LASSERT((enqflags & ~CEF_MASK) == 0);
-
- if (enqflags & CEF_NONBLOCK)
- result |= LDLM_FL_BLOCK_NOWAIT;
- if (enqflags & CEF_GLIMPSE)
- result |= LDLM_FL_HAS_INTENT;
- if (enqflags & CEF_DISCARD_DATA)
- result |= LDLM_FL_AST_DISCARD_DATA;
- if (enqflags & CEF_PEEK)
- result |= LDLM_FL_TEST_LOCK;
- if (enqflags & CEF_LOCK_MATCH)
- result |= LDLM_FL_MATCH_LOCK;
- if (enqflags & CEF_LOCK_NO_EXPAND)
- result |= LDLM_FL_NO_EXPANSION;
- if (enqflags & CEF_SPECULATIVE)
- result |= LDLM_FL_SPECULATIVE;
- return result;
-}
-
/**
* Updates object attributes from a lock value block (lvb) received together
* with the DLM lock reply from the server. Copy of osc_update_enqueue()
* lockless lock.
*/
osc_object_set_contended(cl2osc(slice->cls_obj));
- LASSERT(slice->cls_ops == &osc_lock_ops);
+ LASSERT(slice->cls_ops != oscl->ols_lockless_ops);
/* Change this lock to ldlmlock-less lock. */
osc_lock_to_lockless(env, oscl, 1);
RETURN(result);
}
-static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data)
+int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data)
{
struct ptlrpc_request *req = data;
struct lu_env *env;
req->rq_status = result;
RETURN(result);
}
+EXPORT_SYMBOL(osc_ldlm_glimpse_ast);
static int weigh_cb(const struct lu_env *env, struct cl_io *io,
struct osc_page *ops, void *cbdata)
* Additional policy can be implemented here, e.g., never do lockless-io
* for large extents.
*/
-static void osc_lock_to_lockless(const struct lu_env *env,
- struct osc_lock *ols, int force)
+void osc_lock_to_lockless(const struct lu_env *env,
+ struct osc_lock *ols, int force)
{
- struct cl_lock_slice *slice = &ols->ols_cl;
-
- LASSERT(ols->ols_state == OLS_NEW ||
- ols->ols_state == OLS_UPCALL_RECEIVED);
-
- if (force) {
- ols->ols_locklessable = 1;
- slice->cls_ops = &osc_lock_lockless_ops;
- } else {
- struct osc_io *oio = osc_env_io(env);
- struct cl_io *io = oio->oi_cl.cis_io;
- struct cl_object *obj = slice->cls_obj;
- struct osc_object *oob = cl2osc(obj);
- const struct osc_device *osd = lu2osc_dev(obj->co_lu.lo_dev);
- struct obd_connect_data *ocd;
-
- LASSERT(io->ci_lockreq == CILR_MANDATORY ||
- io->ci_lockreq == CILR_MAYBE ||
- io->ci_lockreq == CILR_NEVER);
-
- ocd = &class_exp2cliimp(osc_export(oob))->imp_connect_data;
- ols->ols_locklessable = (io->ci_type != CIT_SETATTR) &&
- (io->ci_lockreq == CILR_MAYBE) &&
- (ocd->ocd_connect_flags & OBD_CONNECT_SRVLOCK);
- if (io->ci_lockreq == CILR_NEVER ||
- /* lockless IO */
- (ols->ols_locklessable && osc_object_is_contended(oob)) ||
- /* lockless truncate */
- (cl_io_is_trunc(io) &&
- (ocd->ocd_connect_flags & OBD_CONNECT_TRUNCLOCK) &&
- osd->od_lockless_truncate)) {
- ols->ols_locklessable = 1;
- slice->cls_ops = &osc_lock_lockless_ops;
- }
- }
- LASSERT(ergo(ols->ols_glimpse, !osc_lock_is_lockless(ols)));
+ struct cl_lock_slice *slice = &ols->ols_cl;
+ struct osc_io *oio = osc_env_io(env);
+ struct cl_io *io = oio->oi_cl.cis_io;
+ struct cl_object *obj = slice->cls_obj;
+ struct osc_object *oob = cl2osc(obj);
+ const struct osc_device *osd = lu2osc_dev(obj->co_lu.lo_dev);
+ struct obd_connect_data *ocd;
+
+ LASSERT(ols->ols_state == OLS_NEW ||
+ ols->ols_state == OLS_UPCALL_RECEIVED);
+
+ if (force) {
+ ols->ols_locklessable = 1;
+ slice->cls_ops = ols->ols_lockless_ops;
+ } else {
+ LASSERT(io->ci_lockreq == CILR_MANDATORY ||
+ io->ci_lockreq == CILR_MAYBE ||
+ io->ci_lockreq == CILR_NEVER);
+
+ ocd = &class_exp2cliimp(osc_export(oob))->imp_connect_data;
+ ols->ols_locklessable = (io->ci_type != CIT_SETATTR) &&
+ (io->ci_lockreq == CILR_MAYBE) &&
+ (ocd->ocd_connect_flags &
+ OBD_CONNECT_SRVLOCK);
+ if (io->ci_lockreq == CILR_NEVER ||
+ /* lockless IO */
+ (ols->ols_locklessable && osc_object_is_contended(oob)) ||
+ /* lockless truncate */
+ (cl_io_is_trunc(io) && osd->od_lockless_truncate &&
+ (ocd->ocd_connect_flags & OBD_CONNECT_TRUNCLOCK))) {
+ ols->ols_locklessable = 1;
+ slice->cls_ops = ols->ols_lockless_ops;
+ }
+ }
+ LASSERT(ergo(ols->ols_glimpse, !osc_lock_is_lockless(ols)));
}
+EXPORT_SYMBOL(osc_lock_to_lockless);
static bool osc_lock_compatible(const struct osc_lock *qing,
const struct osc_lock *qed)
return false;
}
-static void osc_lock_wake_waiters(const struct lu_env *env,
- struct osc_object *osc,
- struct osc_lock *oscl)
+void osc_lock_wake_waiters(const struct lu_env *env, struct osc_object *osc,
+ struct osc_lock *oscl)
{
spin_lock(&osc->oo_ol_spin);
list_del_init(&oscl->ols_nextlock_oscobj);
}
spin_unlock(&oscl->ols_lock);
}
+EXPORT_SYMBOL(osc_lock_wake_waiters);
-static int osc_lock_enqueue_wait(const struct lu_env *env,
- struct osc_object *obj, struct osc_lock *oscl)
+int osc_lock_enqueue_wait(const struct lu_env *env, struct osc_object *obj,
+ struct osc_lock *oscl)
{
struct osc_lock *tmp_oscl;
struct cl_lock_descr *need = &oscl->ols_cl.cls_lock->cll_descr;
struct cl_sync_io *waiter = &osc_env_info(env)->oti_anchor;
int rc = 0;
+
ENTRY;
spin_lock(&obj->oo_ol_spin);
RETURN(rc);
}
+EXPORT_SYMBOL(osc_lock_enqueue_wait);
/**
* Implementation of cl_lock_operations::clo_enqueue() method for osc
*
* - cancels ldlm lock (ldlm_cli_cancel()).
*/
-static void osc_lock_cancel(const struct lu_env *env,
- const struct cl_lock_slice *slice)
+void osc_lock_cancel(const struct lu_env *env,
+ const struct cl_lock_slice *slice)
{
struct osc_object *obj = cl2osc(slice->cls_obj);
struct osc_lock *oscl = cl2osc_lock(slice);
osc_lock_wake_waiters(env, obj, oscl);
EXIT;
}
+EXPORT_SYMBOL(osc_lock_cancel);
-static int osc_lock_print(const struct lu_env *env, void *cookie,
- lu_printer_t p, const struct cl_lock_slice *slice)
+int osc_lock_print(const struct lu_env *env, void *cookie,
+ lu_printer_t p, const struct cl_lock_slice *slice)
{
struct osc_lock *lock = cl2osc_lock(slice);
osc_lvb_print(env, cookie, p, &lock->ols_lvb);
return 0;
}
+EXPORT_SYMBOL(osc_lock_print);
static const struct cl_lock_operations osc_lock_ops = {
.clo_fini = osc_lock_fini,
.clo_print = osc_lock_print
};
-static void osc_lock_set_writer(const struct lu_env *env,
- const struct cl_io *io,
- struct cl_object *obj, struct osc_lock *oscl)
+void osc_lock_set_writer(const struct lu_env *env, const struct cl_io *io,
+ struct cl_object *obj, struct osc_lock *oscl)
{
struct cl_lock_descr *descr = &oscl->ols_cl.cls_lock->cll_descr;
pgoff_t io_start;
oio->oi_write_osclock = oscl;
}
}
+EXPORT_SYMBOL(osc_lock_set_writer);
int osc_lock_init(const struct lu_env *env,
struct cl_object *obj, struct cl_lock *lock,
INIT_LIST_HEAD(&oscl->ols_waiting_list);
INIT_LIST_HEAD(&oscl->ols_wait_entry);
INIT_LIST_HEAD(&oscl->ols_nextlock_oscobj);
+ oscl->ols_lockless_ops = &osc_lock_lockless_ops;
/* Speculative lock requests must be either no_expand or glimpse
* request (CEF_GLIMPSE). non-glimpse no_expand speculative extent
* Finds an existing lock covering given index and optionally different from a
* given \a except lock.
*/
-struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env,
- struct osc_object *obj, pgoff_t index,
- enum osc_dap_flags dap_flags)
+struct ldlm_lock *osc_obj_dlmlock_at_pgoff(const struct lu_env *env,
+ struct osc_object *obj,
+ pgoff_t index,
+ enum osc_dap_flags dap_flags)
{
struct osc_thread_info *info = osc_env_info(env);
struct ldlm_res_id *resname = &info->oti_resname;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff