* GPL HEADER END
*/
/*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2013, Intel Corporation.
*/
/*
* lustre/target/tgt_main.c
#define DEBUG_SUBSYSTEM S_CLASS
#include <obd.h>
-
#include "tgt_internal.h"
int tgt_init(const struct lu_env *env, struct lu_target *lut,
- struct obd_device *obd, struct dt_device *dt)
+ struct obd_device *obd, struct dt_device *dt,
+ struct tgt_opc_slice *slice, int request_fail_id,
+ int reply_fail_id)
{
- struct dt_object_format dof;
- struct lu_attr attr;
- struct lu_fid fid;
- struct dt_object *o;
- int rc = 0;
+ struct dt_object_format dof;
+ struct lu_attr attr;
+ struct lu_fid fid;
+ struct dt_object *o;
+ int rc = 0;
ENTRY;
lut->lut_obd = obd;
lut->lut_bottom = dt;
lut->lut_last_rcvd = NULL;
+ lut->lut_client_bitmap = NULL;
obd->u.obt.obt_lut = lut;
obd->u.obt.obt_magic = OBT_MAGIC;
+ /* set request handler slice and parameters */
+ lut->lut_slice = slice;
+ lut->lut_reply_fail_id = reply_fail_id;
+ lut->lut_request_fail_id = request_fail_id;
+
+ /* 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)
+ RETURN(0);
+
spin_lock_init(&lut->lut_translock);
OBD_ALLOC(lut->lut_client_bitmap, LR_MAX_CLIENTS >> 3);
attr.la_mode = S_IFREG | S_IRUGO | S_IWUSR;
dof.dof_type = dt_mode_to_dft(S_IFREG);
- lu_local_obj_fid(&fid, MDT_LAST_RECV_OID);
+ 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;
+ CFS_INIT_LIST_HEAD(&lut->lut_txn_cb.dtc_linkage);
+
+ dt_txn_callback_add(lut->lut_bottom, &lut->lut_txn_cb);
+
+ 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);
{
ENTRY;
+ sptlrpc_rule_set_free(&lut->lut_sptlrpc_rset);
+
if (lut->lut_client_bitmap) {
OBD_FREE(lut->lut_client_bitmap, LR_MAX_CLIENTS >> 3);
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;
}
/* context key constructor/destructor: tg_key_init, tg_key_fini */
LU_KEY_INIT_FINI(tgt, struct tgt_thread_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);
+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,
+};
EXPORT_SYMBOL(tgt_thread_key);
-LU_KEY_INIT_GENERIC(tg);
+LU_KEY_INIT_GENERIC(tgt);
+
+/* context key constructor/destructor: tgt_ses_key_init, tgt_ses_key_fini */
+LU_KEY_INIT_FINI(tgt_ses, struct tgt_session_info);
+
+/* context key: tgt_session_key */
+struct lu_context_key tgt_session_key = {
+ .lct_tags = LCT_SERVER_SESSION,
+ .lct_init = tgt_ses_key_init,
+ .lct_fini = tgt_ses_key_fini,
+};
+EXPORT_SYMBOL(tgt_session_key);
+
+LU_KEY_INIT_GENERIC(tgt_ses);
+
+/*
+ * 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)
{
- tg_key_init_generic(&tgt_thread_key, NULL);
+ 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);
- return 0;
+
+ tgt_ses_key_init_generic(&tgt_session_key, NULL);
+ lu_context_key_register_many(&tgt_session_key, NULL);
+
+ 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);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff