* GPL HEADER END
*/
/*
- * Copyright (c) 2012, 2015, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* lustre/target/tgt_main.c
#include "tgt_internal.h"
#include "../ptlrpc/ptlrpc_internal.h"
-static spinlock_t uncommitted_slc_locks_guard;
-static struct list_head uncommitted_slc_locks;
-
/*
- * Save cross-MDT lock in uncommitted_slc_locks.
+ * Save cross-MDT lock in lut_slc_locks.
*
* Lock R/W count is not saved, but released in unlock (not canceled remotely),
* instead only a refcount is taken, so that the remote MDT where the object
* resides can detect conflict with this lock there.
*
+ * \param lut target
* \param lock cross-MDT lock to save
* \param transno when the transaction with this transno is committed, this lock
* can be canceled.
*/
-void tgt_save_slc_lock(struct ldlm_lock *lock, __u64 transno)
+void tgt_save_slc_lock(struct lu_target *lut, struct ldlm_lock *lock,
+ __u64 transno)
{
- spin_lock(&uncommitted_slc_locks_guard);
+ spin_lock(&lut->lut_slc_locks_guard);
lock_res_and_lock(lock);
if (ldlm_is_cbpending(lock)) {
/* if it was canceld by server, don't save, because remote MDT
* both use this lock, and save it after use, so for the second
* one, just put the refcount. */
if (list_empty(&lock->l_slc_link))
- list_add_tail(&lock->l_slc_link,
- &uncommitted_slc_locks);
+ list_add_tail(&lock->l_slc_link, &lut->lut_slc_locks);
else
LDLM_LOCK_PUT(lock);
}
unlock_res_and_lock(lock);
- spin_unlock(&uncommitted_slc_locks_guard);
+ spin_unlock(&lut->lut_slc_locks_guard);
}
EXPORT_SYMBOL(tgt_save_slc_lock);
/*
- * Discard cross-MDT lock from uncommitted_slc_locks.
+ * Discard cross-MDT lock from lut_slc_locks.
*
- * This is called upon BAST, just remove lock from uncommitted_slc_locks and put
- * lock refcount. The BAST will cancel this lock.
+ * This is called upon BAST, just remove lock from lut_slc_locks and put lock
+ * refcount. The BAST will cancel this lock.
*
+ * \param lut target
* \param lock cross-MDT lock to discard
*/
-void tgt_discard_slc_lock(struct ldlm_lock *lock)
+void tgt_discard_slc_lock(struct lu_target *lut, struct ldlm_lock *lock)
{
- spin_lock(&uncommitted_slc_locks_guard);
+ spin_lock(&lut->lut_slc_locks_guard);
lock_res_and_lock(lock);
/* may race with tgt_cancel_slc_locks() */
if (lock->l_transno != 0) {
LDLM_LOCK_PUT(lock);
}
unlock_res_and_lock(lock);
- spin_unlock(&uncommitted_slc_locks_guard);
+ spin_unlock(&lut->lut_slc_locks_guard);
}
EXPORT_SYMBOL(tgt_discard_slc_lock);
/*
* Cancel cross-MDT locks upon transaction commit.
*
- * Remove cross-MDT locks from uncommitted_slc_locks, cancel them and put lock
- * refcount.
+ * Remove cross-MDT locks from lut_slc_locks, cancel them and put lock refcount.
*
+ * \param lut target
* \param transno transaction with this number was committed.
*/
-void tgt_cancel_slc_locks(__u64 transno)
+void tgt_cancel_slc_locks(struct lu_target *lut, __u64 transno)
{
struct ldlm_lock *lock, *next;
LIST_HEAD(list);
struct lustre_handle lockh;
- spin_lock(&uncommitted_slc_locks_guard);
- list_for_each_entry_safe(lock, next, &uncommitted_slc_locks,
+ spin_lock(&lut->lut_slc_locks_guard);
+ list_for_each_entry_safe(lock, next, &lut->lut_slc_locks,
l_slc_link) {
lock_res_and_lock(lock);
LASSERT(lock->l_transno != 0);
list_move(&lock->l_slc_link, &list);
unlock_res_and_lock(lock);
}
- spin_unlock(&uncommitted_slc_locks_guard);
+ spin_unlock(&lut->lut_slc_locks_guard);
list_for_each_entry_safe(lock, next, &list, l_slc_link) {
list_del_init(&lock->l_slc_link);
struct lu_attr attr;
struct lu_fid fid;
struct dt_object *o;
- int rc = 0;
+ struct tg_grants_data *tgd = &lut->lut_tgd;
+ struct obd_statfs *osfs;
+ int i, rc = 0;
ENTRY;
spin_lock_init(&lut->lut_flags_lock);
lut->lut_sync_lock_cancel = NEVER_SYNC_ON_CANCEL;
+ spin_lock_init(&lut->lut_slc_locks_guard);
+ INIT_LIST_HEAD(&lut->lut_slc_locks);
+
/* last_rcvd initialization is needed by replayable targets only */
if (!obd->obd_replayable)
RETURN(0);
+ /* initialize grant and statfs data in target */
+ dt_conf_get(env, lut->lut_bottom, &lut->lut_dt_conf);
+
+ /* statfs data */
+ spin_lock_init(&tgd->tgd_osfs_lock);
+ tgd->tgd_osfs_age = ktime_get_seconds() - 1000;
+ tgd->tgd_osfs_unstable = 0;
+ tgd->tgd_statfs_inflight = 0;
+ tgd->tgd_osfs_inflight = 0;
+
+ /* grant data */
+ spin_lock_init(&tgd->tgd_grant_lock);
+ tgd->tgd_tot_dirty = 0;
+ tgd->tgd_tot_granted = 0;
+ tgd->tgd_tot_pending = 0;
+ tgd->tgd_grant_compat_disable = 0;
+
+ /* populate cached statfs data */
+ osfs = &tgt_th_info(env)->tti_u.osfs;
+ rc = tgt_statfs_internal(env, lut, osfs, 0, NULL);
+ if (rc != 0) {
+ CERROR("%s: can't get statfs data, rc %d\n", tgt_name(lut),
+ rc);
+ GOTO(out, rc);
+ }
+ if (!is_power_of_2(osfs->os_bsize)) {
+ CERROR("%s: blocksize (%d) is not a power of 2\n",
+ tgt_name(lut), osfs->os_bsize);
+ GOTO(out, rc = -EPROTO);
+ }
+ tgd->tgd_blockbits = fls(osfs->os_bsize) - 1;
+
spin_lock_init(&lut->lut_translock);
spin_lock_init(&lut->lut_client_bitmap_lock);
OBD_ALLOC(lut->lut_reply_bitmap,
LUT_REPLY_SLOTS_MAX_CHUNKS * sizeof(unsigned long *));
if (lut->lut_reply_bitmap == NULL)
- GOTO(out, rc);
+ GOTO(out, rc = -ENOMEM);
memset(&attr, 0, sizeof(attr));
attr.la_valid = LA_MODE;
obd->u.obt.obt_magic = 0;
obd->u.obt.obt_lut = NULL;
if (lut->lut_last_rcvd != NULL) {
- lu_object_put(env, &lut->lut_last_rcvd->do_lu);
+ dt_object_put(env, lut->lut_last_rcvd);
lut->lut_last_rcvd = NULL;
}
if (lut->lut_client_bitmap != NULL)
OBD_FREE(lut->lut_client_bitmap, LR_MAX_CLIENTS >> 3);
lut->lut_client_bitmap = NULL;
if (lut->lut_reply_data != NULL)
- lu_object_put(env, &lut->lut_reply_data->do_lu);
+ dt_object_put(env, lut->lut_reply_data);
lut->lut_reply_data = NULL;
- if (lut->lut_reply_bitmap != NULL)
+ if (lut->lut_reply_bitmap != NULL) {
+ for (i = 0; i < LUT_REPLY_SLOTS_MAX_CHUNKS; i++) {
+ if (lut->lut_reply_bitmap[i] != NULL)
+ OBD_FREE_LARGE(lut->lut_reply_bitmap[i],
+ BITS_TO_LONGS(LUT_REPLY_SLOTS_PER_CHUNK) *
+ sizeof(long));
+ lut->lut_reply_bitmap[i] = NULL;
+ }
OBD_FREE(lut->lut_reply_bitmap,
LUT_REPLY_SLOTS_MAX_CHUNKS * sizeof(unsigned long *));
+ }
lut->lut_reply_bitmap = NULL;
return rc;
}
sptlrpc_rule_set_free(&lut->lut_sptlrpc_rset);
if (lut->lut_reply_data != NULL)
- lu_object_put(env, &lut->lut_reply_data->do_lu);
+ dt_object_put(env, lut->lut_reply_data);
lut->lut_reply_data = NULL;
if (lut->lut_reply_bitmap != NULL) {
for (i = 0; i < LUT_REPLY_SLOTS_MAX_CHUNKS; i++) {
if (lut->lut_reply_bitmap[i] != NULL)
- OBD_FREE(lut->lut_reply_bitmap[i],
+ OBD_FREE_LARGE(lut->lut_reply_bitmap[i],
BITS_TO_LONGS(LUT_REPLY_SLOTS_PER_CHUNK) *
sizeof(long));
lut->lut_reply_bitmap[i] = 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);
+ dt_object_put(env, lut->lut_last_rcvd);
lut->lut_last_rcvd = NULL;
}
EXIT;
}
EXPORT_SYMBOL(tgt_fini);
+static struct kmem_cache *tgt_thread_kmem;
+static struct kmem_cache *tgt_session_kmem;
+static struct lu_kmem_descr tgt_caches[] = {
+ {
+ .ckd_cache = &tgt_thread_kmem,
+ .ckd_name = "tgt_thread_kmem",
+ .ckd_size = sizeof(struct tgt_thread_info),
+ },
+ {
+ .ckd_cache = &tgt_session_kmem,
+ .ckd_name = "tgt_session_kmem",
+ .ckd_size = sizeof(struct tgt_session_info)
+ },
+ {
+ .ckd_cache = NULL
+ }
+};
+
+
/* context key constructor/destructor: tg_key_init, tg_key_fini */
-LU_KEY_INIT(tgt, struct tgt_thread_info);
+static void *tgt_key_init(const struct lu_context *ctx,
+ struct lu_context_key *key)
+{
+ struct tgt_thread_info *thread;
+
+ OBD_SLAB_ALLOC_PTR_GFP(thread, tgt_thread_kmem, GFP_NOFS);
+ if (thread == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ return thread;
+}
static void tgt_key_fini(const struct lu_context *ctx,
struct lu_context_key *key, void *data)
if (args->ta_args != NULL)
OBD_FREE(args->ta_args, sizeof(args->ta_args[0]) *
args->ta_alloc_args);
- OBD_FREE_PTR(info);
+ OBD_SLAB_FREE_PTR(info, tgt_thread_kmem);
}
static void tgt_key_exit(const struct lu_context *ctx,
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);
+static void *tgt_ses_key_init(const struct lu_context *ctx,
+ struct lu_context_key *key)
+{
+ struct tgt_session_info *session;
+
+ OBD_SLAB_ALLOC_PTR_GFP(session, tgt_session_kmem, GFP_NOFS);
+ if (session == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ return session;
+}
+
+static void tgt_ses_key_fini(const struct lu_context *ctx,
+ struct lu_context_key *key, void *data)
+{
+ struct tgt_session_info *session = data;
+
+ OBD_SLAB_FREE_PTR(session, tgt_session_kmem);
+}
/* context key: tgt_session_key */
struct lu_context_key tgt_session_key = {
int tgt_mod_init(void)
{
+ int result;
ENTRY;
- tgt_page_to_corrupt = alloc_page(GFP_IOFS);
+ result = lu_kmem_init(tgt_caches);
+ if (result != 0)
+ RETURN(result);
+
+ tgt_page_to_corrupt = alloc_page(GFP_KERNEL);
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);
+ barrier_init();
update_info_init();
- spin_lock_init(&uncommitted_slc_locks_guard);
- INIT_LIST_HEAD(&uncommitted_slc_locks);
-
RETURN(0);
}
void tgt_mod_exit(void)
{
+ barrier_fini();
if (tgt_page_to_corrupt != NULL)
- page_cache_release(tgt_page_to_corrupt);
+ put_page(tgt_page_to_corrupt);
lu_context_key_degister(&tgt_thread_key);
lu_context_key_degister(&tgt_session_key);
update_info_fini();
+
+ lu_kmem_fini(tgt_caches);
}