* GPL HEADER END
*/
/*
- * Copyright (c) 2012, 2013, Intel Corporation.
+ * Copyright (c) 2012, 2014, Intel Corporation.
*/
/*
* lustre/target/tgt_main.c
#include <obd.h>
#include "tgt_internal.h"
+#include "../ptlrpc/ptlrpc_internal.h"
int tgt_init(const struct lu_env *env, struct lu_target *lut,
struct obd_device *obd, struct dt_device *dt,
/* sptlrcp variables init */
rwlock_init(&lut->lut_sptlrpc_lock);
sptlrpc_rule_set_init(&lut->lut_sptlrpc_rset);
- lut->lut_mds_capa = 1;
- lut->lut_oss_capa = 1;
+
+ spin_lock_init(&lut->lut_flags_lock);
+ lut->lut_sync_lock_cancel = NEVER_SYNC_ON_CANCEL;
/* last_rcvd initialization is needed by replayable targets only */
if (!obd->obd_replayable)
lu_local_obj_fid(&fid, LAST_RECV_OID);
o = dt_find_or_create(env, lut->lut_bottom, &fid, &dof, &attr);
- if (!IS_ERR(o)) {
- lut->lut_last_rcvd = o;
- } else {
- OBD_FREE(lut->lut_client_bitmap, LR_MAX_CLIENTS >> 3);
- lut->lut_client_bitmap = NULL;
+ if (IS_ERR(o)) {
rc = PTR_ERR(o);
- CERROR("cannot open %s: rc = %d\n", LAST_RCVD, rc);
+ CERROR("%s: cannot open LAST_RCVD: rc = %d\n", tgt_name(lut),
+ rc);
+ GOTO(out_bitmap, rc);
}
- RETURN(rc);
+ lut->lut_last_rcvd = o;
+ rc = tgt_server_data_init(env, lut);
+ if (rc < 0)
+ GOTO(out_obj, rc);
+
+ /* prepare transactions callbacks */
+ lut->lut_txn_cb.dtc_txn_start = tgt_txn_start_cb;
+ lut->lut_txn_cb.dtc_txn_stop = tgt_txn_stop_cb;
+ lut->lut_txn_cb.dtc_txn_commit = NULL;
+ lut->lut_txn_cb.dtc_cookie = lut;
+ lut->lut_txn_cb.dtc_tag = LCT_DT_THREAD | LCT_MD_THREAD;
+ INIT_LIST_HEAD(&lut->lut_txn_cb.dtc_linkage);
+
+ dt_txn_callback_add(lut->lut_bottom, &lut->lut_txn_cb);
+ lut->lut_bottom->dd_lu_dev.ld_site->ls_tgt = lut;
+
+ RETURN(0);
+out_obj:
+ lu_object_put(env, &lut->lut_last_rcvd->do_lu);
+ lut->lut_last_rcvd = NULL;
+out_bitmap:
+ OBD_FREE(lut->lut_client_bitmap, LR_MAX_CLIENTS >> 3);
+ lut->lut_client_bitmap = NULL;
+ return rc;
}
EXPORT_SYMBOL(tgt_init);
lut->lut_client_bitmap = NULL;
}
if (lut->lut_last_rcvd) {
+ dt_txn_callback_del(lut->lut_bottom, &lut->lut_txn_cb);
lu_object_put(env, &lut->lut_last_rcvd->do_lu);
lut->lut_last_rcvd = NULL;
}
EXPORT_SYMBOL(tgt_fini);
/* context key constructor/destructor: tg_key_init, tg_key_fini */
-LU_KEY_INIT_FINI(tgt, struct tgt_thread_info);
+LU_KEY_INIT(tgt, struct tgt_thread_info);
+
+static void tgt_key_fini(const struct lu_context *ctx,
+ struct lu_context_key *key, void *data)
+{
+ struct tgt_thread_info *info = data;
+ struct thandle_exec_args *args = &info->tti_tea;
+ int i;
+
+ for (i = 0; i < args->ta_alloc_args; i++) {
+ if (args->ta_args[i] != NULL)
+ OBD_FREE_PTR(args->ta_args[i]);
+ }
+
+ if (args->ta_args != NULL)
+ OBD_FREE(args->ta_args, sizeof(args->ta_args[0]) *
+ args->ta_alloc_args);
+ OBD_FREE_PTR(info);
+}
+
+static void tgt_key_exit(const struct lu_context *ctx,
+ struct lu_context_key *key, void *data)
+{
+ struct tgt_thread_info *tti = data;
+
+ tti->tti_has_trans = 0;
+ tti->tti_mult_trans = 0;
+}
/* context key: tg_thread_key */
-LU_CONTEXT_KEY_DEFINE(tgt, LCT_MD_THREAD | LCT_DT_THREAD);
-EXPORT_SYMBOL(tgt_thread_key);
+struct lu_context_key tgt_thread_key = {
+ .lct_tags = LCT_MD_THREAD | LCT_DT_THREAD,
+ .lct_init = tgt_key_init,
+ .lct_fini = tgt_key_fini,
+ .lct_exit = tgt_key_exit,
+};
LU_KEY_INIT_GENERIC(tgt);
/* context key: tgt_session_key */
struct lu_context_key tgt_session_key = {
- .lct_tags = LCT_SESSION,
+ .lct_tags = LCT_SERVER_SESSION,
.lct_init = tgt_ses_key_init,
.lct_fini = tgt_ses_key_fini,
};
LU_KEY_INIT_GENERIC(tgt_ses);
-struct lprocfs_vars lprocfs_srv_module_vars[] = {
- { 0 },
-};
+/*
+ * this page is allocated statically when module is initializing
+ * it is used to simulate data corruptions, see ost_checksum_bulk()
+ * for details. as the original pages provided by the layers below
+ * can be remain in the internal cache, we do not want to modify
+ * them.
+ */
+struct page *tgt_page_to_corrupt;
int tgt_mod_init(void)
{
ENTRY;
+ tgt_page_to_corrupt = alloc_page(GFP_IOFS);
+
tgt_key_init_generic(&tgt_thread_key, NULL);
lu_context_key_register_many(&tgt_thread_key, NULL);
tgt_ses_key_init_generic(&tgt_session_key, NULL);
lu_context_key_register_many(&tgt_session_key, NULL);
+ update_info_init();
+
RETURN(0);
}
void tgt_mod_exit(void)
{
+ if (tgt_page_to_corrupt != NULL)
+ page_cache_release(tgt_page_to_corrupt);
+
lu_context_key_degister(&tgt_thread_key);
lu_context_key_degister(&tgt_session_key);
+ update_info_fini();
}