X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Flmv%2Flmv_internal.h;h=15692c54682d4bf57ac3c1ed674d96c87c8d4a1c;hb=966d0a25ba7ad6f4a58cdd25748fa356d8880e9b;hp=2311f4e3e1e5524b3dc5419a6ecfe2602ade638d;hpb=fbf5870b9848929d352460f1f005b79c0b5ccc5a;p=fs%2Flustre-release.git diff --git a/lustre/lmv/lmv_internal.h b/lustre/lmv/lmv_internal.h index 2311f4e..15692c5 100644 --- 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. @@ -26,8 +24,10 @@ * GPL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. + * + * Copyright (c) 2011, 2013, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -42,144 +42,32 @@ #define LMV_MAX_TGT_COUNT 128 -#define lmv_init_lock(lmv) down(&lmv->init_sem); -#define lmv_init_unlock(lmv) 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 @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. - */ - struct list_head lo_list; - /** - * Sema for protecting fields. - */ - struct semaphore lo_guard; - /** - * Object state like O_FREEING. - */ - int lo_state; - /** - * Object ref counter. - */ - 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); - down(&obj->lo_guard); -} - -static inline void -lmv_object_unlock(struct lmv_object *obj) -{ - LASSERT(obj); - 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); + __u64 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); - -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, @@ -225,22 +113,38 @@ static inline int lmv_get_easize(struct lmv_obd *lmv) static inline struct lmv_tgt_desc * lmv_get_target(struct lmv_obd *lmv, mdsno_t mds) { - return &lmv->tgts[mds]; + int count = lmv->desc.ld_tgt_count; + int i; + + for (i = 0; i < count; i++) { + if (lmv->tgts[i] == NULL) + continue; + + if (lmv->tgts[i]->ltd_idx == mds) + return lmv->tgts[i]; + } + + return ERR_PTR(-ENODEV); } static inline struct lmv_tgt_desc * lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid) { - mdsno_t mds; + mdsno_t mds = 0; int rc; - rc = lmv_fld_lookup(lmv, fid, &mds); - if (rc) - return ERR_PTR(rc); + if (lmv->desc.ld_tgt_count > 1) { + rc = lmv_fld_lookup(lmv, fid, &mds); + if (rc) + return ERR_PTR(rc); + } 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);