#include <lustre/lustre_user.h>
+struct lov_lock_handles {
+ struct portals_handle llh_handle;
+ atomic_t llh_refcount;
+ int llh_stripe_count;
+ struct lustre_handle llh_handles[0];
+};
+
+struct lov_request {
+ struct list_head rq_link;
+ struct ldlm_extent rq_extent;
+ int rq_idx; /* index in lov->tgts array */
+ int rq_stripe; /* stripe number */
+ int rq_complete;
+ int rq_rc;
+ int rq_buflen; /* length of sub_md */
+ struct obdo *rq_oa;
+ struct lov_stripe_md *rq_md;
+ obd_count rq_oabufs;
+ obd_count rq_pgaidx;
+};
+
+struct lov_request_set {
+ atomic_t set_refcount;
+ struct obd_export *set_exp;
+ int set_count;
+ int set_completes;
+ int set_success;
+ struct llog_cookie *set_cookies;
+ int set_cookie_sent;
+ struct lov_stripe_md *set_md;
+ struct obdo *set_oa;
+ struct obd_trans_info *set_oti;
+ obd_count set_oabufs;
+ struct brw_page *set_pga;
+ struct lov_lock_handles *set_lockh;
+ struct list_head set_list;
+};
+
#define LAP_MAGIC 8200
+#define LOV_MAX_TGT_COUNT 1024
+
+static inline int lov_tgt_changed(struct lov_obd *lov, struct lov_oinfo *loi)
+{
+ return lov->tgts[loi->loi_ost_idx].ltd_gen != loi->loi_ost_gen;
+}
+
struct lov_async_page {
int lap_magic;
int lap_stripe;
obd_off lap_sub_offset;
void *lap_sub_cookie;
struct obd_async_page_ops *lap_caller_ops;
- struct obd_async_page_ops *lap_caller_data;
+ void *lap_caller_data;
obd_id lap_loi_id;
};
+#define LAP_FROM_COOKIE(c) \
+ (LASSERT(((struct lov_async_page *)(c))->lap_magic == LAP_MAGIC), \
+ (struct lov_async_page *)(c))
+
+static inline void lov_llh_addref(void *llhp)
+{
+ struct lov_lock_handles *llh = llhp;
+ atomic_inc(&llh->llh_refcount);
+ CDEBUG(D_INFO, "GETting llh %p : new refcount %d\n", llh,
+ atomic_read(&llh->llh_refcount));
+}
+
+static inline struct lov_lock_handles *lov_llh_new(struct lov_stripe_md *lsm)
+{
+ struct lov_lock_handles *llh;
+
+ OBD_ALLOC(llh, sizeof *llh +
+ sizeof(*llh->llh_handles) * lsm->lsm_stripe_count);
+ if (llh == NULL)
+ return NULL;
+ atomic_set(&llh->llh_refcount, 2);
+ llh->llh_stripe_count = lsm->lsm_stripe_count;
+ INIT_LIST_HEAD(&llh->llh_handle.h_link);
+ class_handle_hash(&llh->llh_handle, lov_llh_addref);
+ return llh;
+}
+
+static inline struct lov_lock_handles *
+lov_handle2llh(struct lustre_handle *handle)
+{
+ LASSERT(handle != NULL);
+ return(class_handle2object(handle->cookie));
+}
+
+static inline void lov_llh_put(struct lov_lock_handles *llh)
+{
+ CDEBUG(D_INFO, "PUTting llh %p : new refcount %d\n", llh,
+ atomic_read(&llh->llh_refcount) - 1);
+ LASSERT(atomic_read(&llh->llh_refcount) > 0 &&
+ atomic_read(&llh->llh_refcount) < 0x5a5a);
+ if (atomic_dec_and_test(&llh->llh_refcount)) {
+ class_handle_unhash(&llh->llh_handle);
+ LASSERT(list_empty(&llh->llh_handle.h_link));
+ OBD_FREE(llh, sizeof *llh +
+ sizeof(*llh->llh_handles) * llh->llh_stripe_count);
+ }
+}
+
+/* lov_merge.c */
+void lov_merge_attrs(struct obdo *tgt, struct obdo *src, obd_flags valid,
+ struct lov_stripe_md *lsm, int stripeno, int *set);
+
+int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
+ obd_off size, int shrink);
+/* lov_offset.c */
+obd_size lov_stripe_size(struct lov_stripe_md *lsm, obd_size ost_size,
+ int stripeno);
+int lov_stripe_offset(struct lov_stripe_md *lsm, obd_off lov_off,
+ int stripeno, obd_off *obd_off);
+obd_off lov_size_to_stripe(struct lov_stripe_md *lsm, obd_off file_size,
+ int stripeno);
+int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno,
+ obd_off start, obd_off end,
+ obd_off *obd_start, obd_off *obd_end);
+int lov_stripe_number(struct lov_stripe_md *lsm, obd_off lov_off);
+
+/* lov_qos.c */
+void qos_shrink_lsm(struct lov_request_set *set);
+int qos_prep_create(struct lov_obd *lov, struct lov_request_set *set,
+ int newea);
+
+/* lov_request.c */
+void lov_set_add_req(struct lov_request *req, struct lov_request_set *set);
+int lov_update_common_set(struct lov_request_set *set,
+ struct lov_request *req, int rc);
+int lov_prep_create_set(struct obd_export *exp, struct lov_stripe_md **ea,
+ struct obdo *src_oa, struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_update_create_set(struct lov_request_set *set,
+ struct lov_request *req, int rc);
+int lov_fini_create_set(struct lov_request_set *set, struct lov_stripe_md **ea);
+int lov_prep_brw_set(struct obd_export *exp, struct obdo *src_oa,
+ struct lov_stripe_md *lsm, obd_count oa_bufs,
+ struct brw_page *pga, struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_fini_brw_set(struct lov_request_set *set);
+int lov_prep_getattr_set(struct obd_export *exp, struct obdo *src_oa,
+ struct lov_stripe_md *lsm,
+ struct lov_request_set **reqset);
+int lov_fini_getattr_set(struct lov_request_set *set);
+int lov_prep_destroy_set(struct obd_export *exp, struct obdo *src_oa,
+ struct lov_stripe_md *lsm,
+ struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_update_destroy_set(struct lov_request_set *set,
+ struct lov_request *req, int rc);
+int lov_fini_destroy_set(struct lov_request_set *set);
+int lov_prep_setattr_set(struct obd_export *exp, struct obdo *src_oa,
+ struct lov_stripe_md *lsm, struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_fini_setattr_set(struct lov_request_set *set);
+int lov_prep_punch_set(struct obd_export *exp, struct obdo *src_oa,
+ struct lov_stripe_md *lsm, obd_off start,
+ obd_off end, struct obd_trans_info *oti,
+ struct lov_request_set **reqset);
+int lov_update_punch_set(struct lov_request_set *set, struct lov_request *req,
+ int rc);
+int lov_fini_punch_set(struct lov_request_set *set);
+int lov_prep_sync_set(struct obd_export *exp, struct obdo *src_oa,
+ struct lov_stripe_md *lsm, obd_off start,
+ obd_off end, struct lov_request_set **reqset);
+int lov_fini_sync_set(struct lov_request_set *set);
+int lov_prep_enqueue_set(struct obd_export *exp, struct lov_stripe_md *lsm,
+ ldlm_policy_data_t *policy, __u32 mode,
+ struct lustre_handle *lockh,
+ struct lov_request_set **reqset);
+int lov_update_enqueue_set(struct lov_request_set *set,
+ struct lov_request *req, int rc, int flags);
+int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode);
+int lov_prep_match_set(struct obd_export *exp, struct lov_stripe_md *lsm,
+ ldlm_policy_data_t *policy, __u32 mode,
+ struct lustre_handle *lockh,
+ struct lov_request_set **reqset);
+int lov_update_match_set(struct lov_request_set *set, struct lov_request *req,
+ int rc);
+int lov_fini_match_set(struct lov_request_set *set, __u32 mode, int flags);
+int lov_prep_cancel_set(struct obd_export *exp, struct lov_stripe_md *lsm,
+ __u32 mode, struct lustre_handle *lockh,
+ struct lov_request_set **reqset);
+int lov_fini_cancel_set(struct lov_request_set *set);
+
/* lov_obd.c */
int lov_get_stripecnt(struct lov_obd *lov, int stripe_count);
int lov_alloc_memmd(struct lov_stripe_md **lsmp, int stripe_count, int pattern);
void lov_free_memmd(struct lov_stripe_md **lsmp);
/* lov_log.c */
-int lov_llog_init(struct obd_device *obd, struct obd_device *tgt,
- int count, struct llog_catid *logid);
-int lov_llog_finish(struct obd_device *obd, int count);
+int lov_llog_init(struct obd_device *, struct obd_llogs *,
+ struct obd_device *, int, struct llog_catid *);
+int lov_llog_finish(struct obd_device *, struct obd_llogs *, int);
/* lov_pack.c */
int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmm,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff