LU-1187 lmv: Locate right MDT in lmv.

[fs/lustre-release.git] / lustre / lmv / lmv_internal.h

diff --git a/lustre/lmv/lmv_internal.h b/lustre/lmv/lmv_internal.h
index a2c67ad..3e3b842 100644 (file)
--- a/lustre/lmv/lmv_internal.h
+++ b/lustre/lmv/lmv_internal.h
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -28,9 +26,8 @@
 /*
  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
- */
-/*
- * Copyright (c) 2011 Whamcloud, Inc.
+ *
+ * Copyright (c) 2011, 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -45,144 +42,32 @@
 
 #define LMV_MAX_TGT_COUNT 128
 
-#define lmv_init_lock(lmv)   cfs_down(&lmv->init_sem);
-#define lmv_init_unlock(lmv) cfs_up(&lmv->init_sem);
+#define lmv_init_lock(lmv)   mutex_lock(&lmv->init_mutex);
+#define lmv_init_unlock(lmv) mutex_unlock(&lmv->init_mutex);
 
 #define LL_IT2STR(it)                                  \
        ((it) ? ldlm_it2str((it)->it_op) : "0")
 
-struct lmv_stripe {
-        /**
-         * Dir stripe fid.
-         */
-        struct lu_fid           ls_fid;
-        /**
-         * Cached home mds number for \a li_fid.
-         */
-        mdsno_t                 ls_mds;
-        /**
-         * Stripe object size.
-         */
-        unsigned long           ls_size;
-        /**
-         * Stripe flags.
-         */
-        int                     ls_flags;
-};
-
-#define O_FREEING               (1 << 0)
-
-struct lmv_object {
-        /**
-         * Link to global objects list.
-         */
-        cfs_list_t              lo_list;
-        /**
-         * Sema for protecting fields.
-         */
-        cfs_semaphore_t         lo_guard;
-        /**
-         * Object state like O_FREEING.
-         */
-        int                     lo_state;
-        /**
-         * Object ref counter.
-         */
-        cfs_atomic_t            lo_count;
-        /**
-         * Object master fid.
-         */
-        struct lu_fid           lo_fid;
-        /**
-         * Object hash type to find stripe by name.
-         */
-        __u32                  lo_hashtype;
-        /**
-         * Number of stripes.
-         */
-        int                     lo_objcount;
-        /**
-         * Array of sub-objs.
-         */
-        struct lmv_stripe      *lo_stripes;
-        /**
-         * Pointer to LMV obd.
-         */
-        struct obd_device      *lo_obd;
-};
-
-int lmv_object_setup(struct obd_device *obd);
-void lmv_object_cleanup(struct obd_device *obd);
-
-static inline void
-lmv_object_lock(struct lmv_object *obj)
-{
-        LASSERT(obj);
-        cfs_down(&obj->lo_guard);
-}
-
-static inline void
-lmv_object_unlock(struct lmv_object *obj)
-{
-        LASSERT(obj);
-        cfs_up(&obj->lo_guard);
-}
-
-void lmv_object_add(struct lmv_object *obj);
-void lmv_object_del(struct lmv_object *obj);
-
-void lmv_object_put(struct lmv_object *obj);
-void lmv_object_put_unlock(struct lmv_object *obj);
-void lmv_object_free(struct lmv_object *obj);
-
-struct lmv_object *lmv_object_get(struct lmv_object *obj);
-
-struct lmv_object *lmv_object_find(struct obd_device *obd,
-                                   const struct lu_fid *fid);
-
-struct lmv_object *lmv_object_find_lock(struct obd_device *obd,
-                                       const struct lu_fid *fid);
-
-struct lmv_object *lmv_object_alloc(struct obd_device *obd,
-                                   const struct lu_fid *fid,
-                                   struct lmv_stripe_md *mea);
-
-struct lmv_object *lmv_object_create(struct obd_export *exp,
-                                    const struct lu_fid *fid,
-                                    struct lmv_stripe_md *mea);
-
-int lmv_object_delete(struct obd_export *exp,
-                      const struct lu_fid *fid);
-
 int lmv_check_connect(struct obd_device *obd);
 
 int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
                     void *lmm, int lmmsize, struct lookup_intent *it,
                     int flags, struct ptlrpc_request **reqp,
                     ldlm_blocking_callback cb_blocking,
-                    int extra_lock_flags);
+                   __u64 extra_lock_flags);
 
 int lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data,
                       void *lmm, int lmmsize, struct lookup_intent *it,
                       int flags, struct ptlrpc_request **reqp,
                       ldlm_blocking_callback cb_blocking,
-                      int extra_lock_flags);
+                     __u64 extra_lock_flags);
 
 int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
                     void *lmm, int lmmsize, struct lookup_intent *it,
                     int flags, struct ptlrpc_request **reqp,
                     ldlm_blocking_callback cb_blocking,
-                    int extra_lock_flags);
-
-int lmv_allocate_slaves(struct obd_device *obd, struct lu_fid *pid,
-                        struct md_op_data *op, struct lu_fid *fid);
-
-int lmv_revalidate_slaves(struct obd_export *, struct ptlrpc_request **,
-                          const struct lu_fid *, struct lookup_intent *, int,
-                         ldlm_blocking_callback cb_blocking,
-                          int extra_lock_flags);
+                   __u64 extra_lock_flags);
 
-int lmv_handle_split(struct obd_export *, const struct lu_fid *);
 int lmv_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
                     void *, int);
 int lmv_fld_lookup(struct lmv_obd *lmv, const struct lu_fid *fid,
@@ -246,6 +131,9 @@ lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid)
         return lmv_get_target(lmv, mds);
 }
 
+struct lmv_tgt_desc
+*lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
+               struct lu_fid *fid);
 /* lproc_lmv.c */
 #ifdef LPROCFS
 void lprocfs_lmv_init_vars(struct lprocfs_static_vars *lvars);