-/* -*- 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.
/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <obd.h>
#include "lov_internal.h"
+#define pool_tgt(_p, _i) \
+ _p->pool_lobd->u.lov.lov_tgts[_p->pool_obds.op_array[_i]]
+
static void lov_pool_getref(struct pool_desc *pool)
{
- CDEBUG(D_INFO, "pool %p\n", pool);
- cfs_atomic_inc(&pool->pool_refcount);
+ CDEBUG(D_INFO, "pool %p\n", pool);
+ atomic_inc(&pool->pool_refcount);
}
void lov_pool_putref(struct pool_desc *pool)
{
- CDEBUG(D_INFO, "pool %p\n", pool);
- if (cfs_atomic_dec_and_test(&pool->pool_refcount)) {
- LASSERT(cfs_hlist_unhashed(&pool->pool_hash));
- LASSERT(cfs_list_empty(&pool->pool_list));
- LASSERT(pool->pool_proc_entry == NULL);
- lov_ost_pool_free(&(pool->pool_rr.lqr_pool));
- lov_ost_pool_free(&(pool->pool_obds));
- OBD_FREE_PTR(pool);
- EXIT;
- }
+ CDEBUG(D_INFO, "pool %p\n", pool);
+ if (atomic_dec_and_test(&pool->pool_refcount)) {
+ LASSERT(hlist_unhashed(&pool->pool_hash));
+ LASSERT(list_empty(&pool->pool_list));
+ LASSERT(pool->pool_proc_entry == NULL);
+ lov_ost_pool_free(&(pool->pool_obds));
+ OBD_FREE_PTR(pool);
+ EXIT;
+ }
}
void lov_pool_putref_locked(struct pool_desc *pool)
{
- CDEBUG(D_INFO, "pool %p\n", pool);
- LASSERT(cfs_atomic_read(&pool->pool_refcount) > 1);
+ CDEBUG(D_INFO, "pool %p\n", pool);
+ LASSERT(atomic_read(&pool->pool_refcount) > 1);
- cfs_atomic_dec(&pool->pool_refcount);
+ atomic_dec(&pool->pool_refcount);
}
/*
* Chapter 6.4.
* Addison Wesley, 1973
*/
-static __u32 pool_hashfn(cfs_hash_t *hash_body, void *key, unsigned mask)
+static __u32 pool_hashfn(cfs_hash_t *hash_body, const void *key, unsigned mask)
{
int i;
__u32 result;
return (pool->pool_name);
}
-static int pool_hashkey_keycmp(void *key, cfs_hlist_node_t *compared_hnode)
+static int pool_hashkey_keycmp(const void *key, cfs_hlist_node_t *compared_hnode)
{
char *pool_name;
struct pool_desc *pool;
return cfs_hlist_entry(hnode, struct pool_desc, pool_hash);
}
-static void *pool_hashrefcount_get(cfs_hlist_node_t *hnode)
+static void pool_hashrefcount_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
{
struct pool_desc *pool;
pool = cfs_hlist_entry(hnode, struct pool_desc, pool_hash);
lov_pool_getref(pool);
- return (pool);
}
-static void *pool_hashrefcount_put_locked(cfs_hlist_node_t *hnode)
+static void pool_hashrefcount_put_locked(cfs_hash_t *hs,
+ cfs_hlist_node_t *hnode)
{
struct pool_desc *pool;
pool = cfs_hlist_entry(hnode, struct pool_desc, pool_hash);
lov_pool_putref_locked(pool);
- return (pool);
}
cfs_hash_ops_t pool_hash_operations = {
/* iterate to find a non empty entry */
prev_idx = iter->idx;
- cfs_down_read(&pool_tgt_rw_sem(iter->pool));
+ down_read(&pool_tgt_rw_sem(iter->pool));
iter->idx++;
if (iter->idx == pool_tgt_count(iter->pool)) {
iter->idx = prev_idx; /* we stay on the last entry */
- cfs_up_read(&pool_tgt_rw_sem(iter->pool));
+ up_read(&pool_tgt_rw_sem(iter->pool));
return NULL;
}
- cfs_up_read(&pool_tgt_rw_sem(iter->pool));
+ up_read(&pool_tgt_rw_sem(iter->pool));
(*pos)++;
/* return != NULL to continue */
return iter;
LASSERT(iter->pool != NULL);
LASSERT(iter->idx <= pool_tgt_count(iter->pool));
- cfs_down_read(&pool_tgt_rw_sem(iter->pool));
+ down_read(&pool_tgt_rw_sem(iter->pool));
tgt = pool_tgt(iter->pool, iter->idx);
- cfs_up_read(&pool_tgt_rw_sem(iter->pool));
+ up_read(&pool_tgt_rw_sem(iter->pool));
if (tgt)
seq_printf(s, "%s\n", obd_uuid2str(&(tgt->ltd_uuid)));
rc = seq_open(file, &pool_proc_ops);
if (!rc) {
struct seq_file *s = file->private_data;
- s->private = PROC_I(inode)->pde->data;
+ s->private = PDE_DATA(inode);
}
return rc;
}
CDEBUG(level, "pool "LOV_POOLNAMEF" has %d members\n",
pool->pool_name, pool->pool_obds.op_count);
- cfs_down_read(&pool_tgt_rw_sem(pool));
+ down_read(&pool_tgt_rw_sem(pool));
for (i = 0; i < pool_tgt_count(pool) ; i++) {
if (!pool_tgt(pool, i) || !(pool_tgt(pool, i))->ltd_exp)
obd_uuid2str(&((pool_tgt(pool, i))->ltd_uuid)));
}
- cfs_up_read(&pool_tgt_rw_sem(pool));
+ up_read(&pool_tgt_rw_sem(pool));
lov_pool_putref(pool);
}
count = LOV_POOL_INIT_COUNT;
op->op_array = NULL;
op->op_count = 0;
- cfs_init_rwsem(&op->op_rw_sem);
+ init_rwsem(&op->op_rw_sem);
op->op_size = count;
OBD_ALLOC(op->op_array, op->op_size * sizeof(op->op_array[0]));
if (op->op_array == NULL) {
int rc = 0, i;
ENTRY;
- cfs_down_write(&op->op_rw_sem);
+ down_write(&op->op_rw_sem);
rc = lov_ost_pool_extend(op, min_count);
if (rc)
op->op_count++;
EXIT;
out:
- cfs_up_write(&op->op_rw_sem);
+ up_write(&op->op_rw_sem);
return rc;
}
int i;
ENTRY;
- cfs_down_write(&op->op_rw_sem);
+ down_write(&op->op_rw_sem);
for (i = 0; i < op->op_count; i++) {
if (op->op_array[i] == idx) {
memmove(&op->op_array[i], &op->op_array[i + 1],
(op->op_count - i - 1) * sizeof(op->op_array[0]));
op->op_count--;
- cfs_up_write(&op->op_rw_sem);
+ up_write(&op->op_rw_sem);
EXIT;
return 0;
}
}
- cfs_up_write(&op->op_rw_sem);
+ up_write(&op->op_rw_sem);
RETURN(-EINVAL);
}
if (op->op_size == 0)
RETURN(0);
- cfs_down_write(&op->op_rw_sem);
+ down_write(&op->op_rw_sem);
OBD_FREE(op->op_array, op->op_size * sizeof(op->op_array[0]));
op->op_array = NULL;
op->op_count = 0;
op->op_size = 0;
- cfs_up_write(&op->op_rw_sem);
+ up_write(&op->op_rw_sem);
RETURN(0);
}
if (new_pool == NULL)
RETURN(-ENOMEM);
- strncpy(new_pool->pool_name, poolname, LOV_MAXPOOLNAME);
- new_pool->pool_name[LOV_MAXPOOLNAME] = '\0';
- new_pool->pool_lov = lov;
- /* ref count init to 1 because when created a pool is always used
- * up to deletion
- */
- cfs_atomic_set(&new_pool->pool_refcount, 1);
- rc = lov_ost_pool_init(&new_pool->pool_obds, 0);
- if (rc)
- GOTO(out_err, rc);
-
- memset(&(new_pool->pool_rr), 0, sizeof(struct lov_qos_rr));
- rc = lov_ost_pool_init(&new_pool->pool_rr.lqr_pool, 0);
- if (rc)
- GOTO(out_free_pool_obds, rc);
+ strncpy(new_pool->pool_name, poolname, LOV_MAXPOOLNAME);
+ new_pool->pool_name[LOV_MAXPOOLNAME] = '\0';
+ new_pool->pool_lobd = obd;
+ /* ref count init to 1 because when created a pool is always used
+ * up to deletion
+ */
+ atomic_set(&new_pool->pool_refcount, 1);
+ rc = lov_ost_pool_init(&new_pool->pool_obds, 0);
+ if (rc)
+ GOTO(out_err, rc);
CFS_INIT_HLIST_NODE(&new_pool->pool_hash);
/* get ref for /proc file */
lov_pool_getref(new_pool);
new_pool->pool_proc_entry = lprocfs_add_simple(lov->lov_pool_proc_entry,
- poolname, NULL, NULL,
- new_pool,
- &pool_proc_operations);
+ poolname,
+#ifndef HAVE_ONLY_PROCFS_SEQ
+ NULL, NULL,
+#endif
+ new_pool,
+ &pool_proc_operations);
if (IS_ERR(new_pool->pool_proc_entry)) {
CWARN("Cannot add proc pool entry "LOV_POOLNAMEF"\n", poolname);
new_pool->pool_proc_entry = NULL;
CDEBUG(D_INFO, "pool %p - proc %p\n", new_pool, new_pool->pool_proc_entry);
#endif
- cfs_spin_lock(&obd->obd_dev_lock);
- cfs_list_add_tail(&new_pool->pool_list, &lov->lov_pool_list);
- lov->lov_pool_count++;
- cfs_spin_unlock(&obd->obd_dev_lock);
+ spin_lock(&obd->obd_dev_lock);
+ cfs_list_add_tail(&new_pool->pool_list, &lov->lov_pool_list);
+ lov->lov_pool_count++;
+ spin_unlock(&obd->obd_dev_lock);
/* add to find only when it fully ready */
rc = cfs_hash_add_unique(lov->lov_pools_hash_body, poolname,
RETURN(0);
out_err:
- cfs_spin_lock(&obd->obd_dev_lock);
- cfs_list_del_init(&new_pool->pool_list);
- lov->lov_pool_count--;
- cfs_spin_unlock(&obd->obd_dev_lock);
-
+ spin_lock(&obd->obd_dev_lock);
+ cfs_list_del_init(&new_pool->pool_list);
+ lov->lov_pool_count--;
+ spin_unlock(&obd->obd_dev_lock);
lprocfs_remove(&new_pool->pool_proc_entry);
+ lov_ost_pool_free(&new_pool->pool_obds);
+ OBD_FREE_PTR(new_pool);
- lov_ost_pool_free(&new_pool->pool_rr.lqr_pool);
-out_free_pool_obds:
- lov_ost_pool_free(&new_pool->pool_obds);
- OBD_FREE_PTR(new_pool);
- return rc;
+ return rc;
}
int lov_pool_del(struct obd_device *obd, char *poolname)
lov_pool_putref(pool);
}
- cfs_spin_lock(&obd->obd_dev_lock);
- cfs_list_del_init(&pool->pool_list);
- lov->lov_pool_count--;
- cfs_spin_unlock(&obd->obd_dev_lock);
+ spin_lock(&obd->obd_dev_lock);
+ cfs_list_del_init(&pool->pool_list);
+ lov->lov_pool_count--;
+ spin_unlock(&obd->obd_dev_lock);
- /* release last reference */
- lov_pool_putref(pool);
+ /* release last reference */
+ lov_pool_putref(pool);
- RETURN(0);
+ RETURN(0);
}
if (rc)
GOTO(out, rc);
- pool->pool_rr.lqr_dirty = 1;
-
CDEBUG(D_CONFIG, "Added %s to "LOV_POOLNAMEF" as member %d\n",
ostname, poolname, pool_tgt_count(pool));
lov_ost_pool_remove(&pool->pool_obds, lov_idx);
- pool->pool_rr.lqr_dirty = 1;
-
CDEBUG(D_CONFIG, "%s removed from "LOV_POOLNAMEF"\n", ostname,
poolname);
lov_pool_putref(pool);
return rc;
}
-
-int lov_check_index_in_pool(__u32 idx, struct pool_desc *pool)
-{
- int i, rc;
- ENTRY;
-
- /* caller may no have a ref on pool if it got the pool
- * without calling lov_find_pool() (e.g. go through the lov pool
- * list)
- */
- lov_pool_getref(pool);
-
- cfs_down_read(&pool_tgt_rw_sem(pool));
-
- for (i = 0; i < pool_tgt_count(pool); i++) {
- if (pool_tgt_array(pool)[i] == idx)
- GOTO(out, rc = 0);
- }
- rc = -ENOENT;
- EXIT;
-out:
- cfs_up_read(&pool_tgt_rw_sem(pool));
-
- lov_pool_putref(pool);
- return rc;
-}
-
-struct pool_desc *lov_find_pool(struct lov_obd *lov, char *poolname)
-{
- struct pool_desc *pool;
-
- pool = NULL;
- if (poolname[0] != '\0') {
- pool = cfs_hash_lookup(lov->lov_pools_hash_body, poolname);
- if (pool == NULL)
- CWARN("Request for an unknown pool ("LOV_POOLNAMEF")\n",
- poolname);
- if ((pool != NULL) && (pool_tgt_count(pool) == 0)) {
- CWARN("Request for an empty pool ("LOV_POOLNAMEF")\n",
- poolname);
- /* pool is ignored, so we remove ref on it */
- lov_pool_putref(pool);
- pool = NULL;
- }
- }
- return pool;
-}
-
git://git.whamcloud.com / fs / lustre-release.git / blobdiff