-/* -*- 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.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2016, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/version.h>
-#include <lustre_lite.h>
#include <lustre_ha.h>
#include <lustre_dlm.h>
#include <linux/init.h>
#include <linux/fs.h>
+#include <linux/random.h>
#include <lprocfs_status.h>
#include "llite_internal.h"
+#include "vvp_internal.h"
-static cfs_mem_cache_t *ll_inode_cachep;
+static struct kmem_cache *ll_inode_cachep;
static struct inode *ll_alloc_inode(struct super_block *sb)
{
- struct ll_inode_info *lli;
- ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_ALLOC_INODE, 1);
- OBD_SLAB_ALLOC_PTR_GFP(lli, ll_inode_cachep, CFS_ALLOC_IO);
- if (lli == NULL)
- return NULL;
-
- inode_init_once(&lli->lli_vfs_inode);
- ll_lli_init(lli);
-
- return &lli->lli_vfs_inode;
+ struct ll_inode_info *lli;
+ ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_ALLOC_INODE, 1);
+ OBD_SLAB_ALLOC_PTR_GFP(lli, ll_inode_cachep, GFP_NOFS);
+ if (lli == NULL)
+ return NULL;
+
+ inode_init_once(&lli->lli_vfs_inode);
+ return &lli->lli_vfs_inode;
}
-static void ll_destroy_inode(struct inode *inode)
+#ifdef HAVE_INODE_I_RCU
+static void ll_inode_destroy_callback(struct rcu_head *head)
{
- struct ll_inode_info *ptr = ll_i2info(inode);
- OBD_SLAB_FREE_PTR(ptr, ll_inode_cachep);
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ struct ll_inode_info *ptr = ll_i2info(inode);
+ OBD_SLAB_FREE_PTR(ptr, ll_inode_cachep);
}
-int ll_init_inodecache(void)
+static void ll_destroy_inode(struct inode *inode)
{
- ll_inode_cachep = cfs_mem_cache_create("lustre_inode_cache",
- sizeof(struct ll_inode_info),
- 0, CFS_SLAB_HWCACHE_ALIGN);
- if (ll_inode_cachep == NULL)
- return -ENOMEM;
- return 0;
+ call_rcu(&inode->i_rcu, ll_inode_destroy_callback);
}
-
-void ll_destroy_inodecache(void)
+#else
+static void ll_destroy_inode(struct inode *inode)
{
- int rc;
-
- rc = cfs_mem_cache_destroy(ll_inode_cachep);
- LASSERTF(rc == 0, "ll_inode_cache: not all structures were freed\n");
+ struct ll_inode_info *ptr = ll_i2info(inode);
+ OBD_SLAB_FREE_PTR(ptr, ll_inode_cachep);
}
+#endif
/* exported operations */
struct super_operations lustre_super_operations =
{
.alloc_inode = ll_alloc_inode,
.destroy_inode = ll_destroy_inode,
+#ifdef HAVE_SBOPS_EVICT_INODE
+ .evict_inode = ll_delete_inode,
+#else
.clear_inode = ll_clear_inode,
.delete_inode = ll_delete_inode,
+#endif
.put_super = ll_put_super,
.statfs = ll_statfs,
.umount_begin = ll_umount_begin,
.show_options = ll_show_options,
};
-
-void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg));
-
-int vvp_global_init(void);
-void vvp_global_fini(void);
-
-static int __init init_lustre_lite(void)
+static int __init lustre_init(void)
{
- int i, rc, seed[2];
- struct timeval tv;
- lnet_process_id_t lnet_id;
-
- /* print an address of _any_ initialized kernel symbol from this
- * module, to allow debugging with gdb that doesn't support data
- * symbols from modules.*/
- CDEBUG(D_CONSOLE, "Lustre client module (%p).\n",
- &lustre_super_operations);
-
- rc = ll_init_inodecache();
- if (rc)
- return -ENOMEM;
- ll_file_data_slab = cfs_mem_cache_create("ll_file_data",
- sizeof(struct ll_file_data), 0,
- CFS_SLAB_HWCACHE_ALIGN);
- if (ll_file_data_slab == NULL) {
- ll_destroy_inodecache();
- return -ENOMEM;
- }
-
- ll_remote_perm_cachep = cfs_mem_cache_create("ll_remote_perm_cache",
- sizeof(struct ll_remote_perm),
- 0, 0);
- if (ll_remote_perm_cachep == NULL) {
- cfs_mem_cache_destroy(ll_file_data_slab);
- ll_file_data_slab = NULL;
- ll_destroy_inodecache();
- return -ENOMEM;
- }
-
- ll_rmtperm_hash_cachep = cfs_mem_cache_create("ll_rmtperm_hash_cache",
- REMOTE_PERM_HASHSIZE *
- sizeof(cfs_list_t),
- 0, 0);
- if (ll_rmtperm_hash_cachep == NULL) {
- cfs_mem_cache_destroy(ll_remote_perm_cachep);
- ll_remote_perm_cachep = NULL;
- cfs_mem_cache_destroy(ll_file_data_slab);
- ll_file_data_slab = NULL;
- ll_destroy_inodecache();
- return -ENOMEM;
- }
-
- proc_lustre_fs_root = proc_lustre_root ?
- lprocfs_register("llite", proc_lustre_root, NULL, NULL) : NULL;
-
- lustre_register_client_fill_super(ll_fill_super);
- lustre_register_kill_super_cb(ll_kill_super);
-
- lustre_register_client_process_config(ll_process_config);
-
- cfs_get_random_bytes(seed, sizeof(seed));
-
- /* Nodes with small feet have little entropy
- * the NID for this node gives the most entropy in the low bits */
- for (i=0; ; i++) {
- if (LNetGetId(i, &lnet_id) == -ENOENT) {
- break;
- }
- if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND) {
- seed[0] ^= LNET_NIDADDR(lnet_id.nid);
- }
- }
-
- cfs_gettimeofday(&tv);
- cfs_srand(tv.tv_sec ^ seed[0], tv.tv_usec ^ seed[1]);
-
- init_timer(&ll_capa_timer);
- ll_capa_timer.function = ll_capa_timer_callback;
- rc = ll_capa_thread_start();
- /*
- * XXX normal cleanup is needed here.
- */
- if (rc == 0)
- rc = vvp_global_init();
-
- return rc;
+ struct lnet_process_id lnet_id;
+ int i, rc;
+
+ CLASSERT(sizeof(LUSTRE_VOLATILE_HDR) == LUSTRE_VOLATILE_HDR_LEN + 1);
+
+ /* print an address of _any_ initialized kernel symbol from this
+ * module, to allow debugging with gdb that doesn't support data
+ * symbols from modules.*/
+ CDEBUG(D_INFO, "Lustre client module (%p).\n",
+ &lustre_super_operations);
+
+ ll_inode_cachep = kmem_cache_create("lustre_inode_cache",
+ sizeof(struct ll_inode_info),
+ 0, SLAB_HWCACHE_ALIGN, NULL);
+ if (ll_inode_cachep == NULL)
+ GOTO(out_cache, rc = -ENOMEM);
+
+ ll_file_data_slab = kmem_cache_create("ll_file_data",
+ sizeof(struct ll_file_data), 0,
+ SLAB_HWCACHE_ALIGN, NULL);
+ if (ll_file_data_slab == NULL)
+ GOTO(out_cache, rc = -ENOMEM);
+
+ rc = llite_tunables_register();
+ if (rc)
+ GOTO(out_cache, rc);
+
+ /* Nodes with small feet have little entropy. The NID for this
+ * node gives the most entropy in the low bits. */
+ for (i = 0;; i++) {
+ if (LNetGetId(i, &lnet_id) == -ENOENT)
+ break;
+
+ add_device_randomness(&lnet_id.nid, sizeof(lnet_id.nid));
+ }
+
+ rc = vvp_global_init();
+ if (rc != 0)
+ GOTO(out_tunables, rc);
+
+ cl_inode_fini_env = cl_env_alloc(&cl_inode_fini_refcheck,
+ LCT_REMEMBER | LCT_NOREF);
+ if (IS_ERR(cl_inode_fini_env))
+ GOTO(out_vvp, rc = PTR_ERR(cl_inode_fini_env));
+
+ cl_inode_fini_env->le_ctx.lc_cookie = 0x4;
+
+ rc = ll_xattr_init();
+ if (rc != 0)
+ GOTO(out_inode_fini_env, rc);
+
+ lustre_register_client_fill_super(ll_fill_super);
+ lustre_register_kill_super_cb(ll_kill_super);
+
+ RETURN(0);
+
+out_inode_fini_env:
+ cl_env_put(cl_inode_fini_env, &cl_inode_fini_refcheck);
+out_vvp:
+ vvp_global_fini();
+out_tunables:
+ llite_tunables_unregister();
+out_cache:
+ kmem_cache_destroy(ll_inode_cachep);
+ kmem_cache_destroy(ll_file_data_slab);
+ return rc;
}
-static void __exit exit_lustre_lite(void)
+static void __exit lustre_exit(void)
{
- int rc;
-
- vvp_global_fini();
- del_timer(&ll_capa_timer);
- ll_capa_thread_stop();
- LASSERTF(capa_count[CAPA_SITE_CLIENT] == 0,
- "client remaining capa count %d\n",
- capa_count[CAPA_SITE_CLIENT]);
-
- lustre_register_client_fill_super(NULL);
- lustre_register_kill_super_cb(NULL);
-
- lustre_register_client_process_config(NULL);
-
- ll_destroy_inodecache();
-
- rc = cfs_mem_cache_destroy(ll_rmtperm_hash_cachep);
- LASSERTF(rc == 0, "couldn't destroy ll_rmtperm_hash_cachep\n");
- ll_rmtperm_hash_cachep = NULL;
-
- rc = cfs_mem_cache_destroy(ll_remote_perm_cachep);
- LASSERTF(rc == 0, "couldn't destroy ll_remote_perm_cachep\n");
- ll_remote_perm_cachep = NULL;
-
- rc = cfs_mem_cache_destroy(ll_file_data_slab);
- LASSERTF(rc == 0, "couldn't destroy ll_file_data slab\n");
- if (proc_lustre_fs_root)
- lprocfs_remove(&proc_lustre_fs_root);
+ lustre_register_client_fill_super(NULL);
+ lustre_register_kill_super_cb(NULL);
+
+ llite_tunables_unregister();
+
+ ll_xattr_fini();
+ cl_env_put(cl_inode_fini_env, &cl_inode_fini_refcheck);
+ vvp_global_fini();
+
+#ifdef HAVE_INODE_I_RCU
+ /*
+ * Make sure all delayed rcu free inodes are flushed before we
+ * destroy cache.
+ */
+ rcu_barrier();
+#endif
+ kmem_cache_destroy(ll_inode_cachep);
+ kmem_cache_destroy(ll_file_data_slab);
}
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Lite Client File System");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Lustre Client File System");
+MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");
-module_init(init_lustre_lite);
-module_exit(exit_lustre_lite);
+module_init(lustre_init);
+module_exit(lustre_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff