LU-3259 clio: Revise read ahead implementation

[fs/lustre-release.git] / lustre / osc / osc_internal.h

diff --git a/lustre/osc/osc_internal.h b/lustre/osc/osc_internal.h
index c0d8d7c..9e44778 100644 (file)
--- a/lustre/osc/osc_internal.h
+++ b/lustre/osc/osc_internal.h
@@ -206,10 +206,24 @@ int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
 int osc_quotacheck(struct obd_device *unused, struct obd_export *exp,
                    struct obd_quotactl *oqctl);
 int osc_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk);
-struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env,
-                                      struct osc_object *obj, pgoff_t index,
-                                      int pending, int canceling);
 void osc_inc_unstable_pages(struct ptlrpc_request *req);
 void osc_dec_unstable_pages(struct ptlrpc_request *req);
 bool osc_over_unstable_soft_limit(struct client_obd *cli);
+/**
+ * Bit flags for osc_dlm_lock_at_pageoff().
+ */
+enum osc_dap_flags {
+       /**
+        * Just check if the desired lock exists, it won't hold reference
+        * count on lock.
+        */
+       OSC_DAP_FL_TEST_LOCK = 1 << 0,
+       /**
+        * Return the lock even if it is being canceled.
+        */
+       OSC_DAP_FL_CANCELING = 1 << 1
+};
+struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env,
+                                      struct osc_object *obj, pgoff_t index,
+                                      enum osc_dap_flags flags);
 #endif /* OSC_INTERNAL_H */