-/* -*- 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 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*/
#define DEBUG_SUBSYSTEM S_CLASS
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-#ifndef __KERNEL__
-# include <liblustre.h>
-#else
-# include <asm/atomic.h>
+
+#include <linux/user_namespace.h>
+#ifdef HAVE_UIDGID_HEADER
+# include <linux/uidgid.h>
#endif
+#include <linux/atomic.h>
+#include <linux/list.h>
#include <obd_support.h>
#include <obd_class.h>
+#include <lnet/lnetctl.h>
#include <lustre_debug.h>
#include <lprocfs_status.h>
-#include <lustre/lustre_build_version.h>
-#include <libcfs/list.h>
+#include <lustre_ver.h>
+#include <cl_object.h>
+#ifdef HAVE_SERVER_SUPPORT
+# include <dt_object.h>
+# include <md_object.h>
+#endif /* HAVE_SERVER_SUPPORT */
+#include <lustre_ioctl.h>
#include "llog_internal.h"
-#ifndef __KERNEL__
-/* liblustre workaround */
-atomic_t libcfs_kmemory = {0};
-#endif
-
struct obd_device *obd_devs[MAX_OBD_DEVICES];
struct list_head obd_types;
-spinlock_t obd_dev_lock = SPIN_LOCK_UNLOCKED;
+DEFINE_RWLOCK(obd_dev_lock);
-#ifndef __KERNEL__
-__u64 obd_max_pages = 0;
-__u64 obd_max_alloc = 0;
-__u64 obd_alloc;
-__u64 obd_pages;
+#ifdef CONFIG_PROC_FS
+static __u64 obd_max_alloc;
+#else
+__u64 obd_max_alloc;
#endif
+static DEFINE_SPINLOCK(obd_updatemax_lock);
+
/* The following are visible and mutable through /proc/sys/lustre/. */
unsigned int obd_debug_peer_on_timeout;
+EXPORT_SYMBOL(obd_debug_peer_on_timeout);
unsigned int obd_dump_on_timeout;
+EXPORT_SYMBOL(obd_dump_on_timeout);
unsigned int obd_dump_on_eviction;
+EXPORT_SYMBOL(obd_dump_on_eviction);
+unsigned long obd_max_dirty_pages;
+EXPORT_SYMBOL(obd_max_dirty_pages);
+atomic_long_t obd_dirty_pages;
+EXPORT_SYMBOL(obd_dirty_pages);
unsigned int obd_timeout = OBD_TIMEOUT_DEFAULT; /* seconds */
+EXPORT_SYMBOL(obd_timeout);
unsigned int ldlm_timeout = LDLM_TIMEOUT_DEFAULT; /* seconds */
-unsigned int obd_max_dirty_pages = 256;
-atomic_t obd_dirty_pages;
-
-cfs_waitq_t obd_race_waitq;
-int obd_race_state;
-
-#ifdef __KERNEL__
-unsigned long obd_print_fail_loc(void)
-{
- CWARN("obd_fail_loc = %lx\n", obd_fail_loc);
- return obd_fail_loc;
-}
-
-void obd_set_fail_loc(unsigned int fl)
-{
- obd_fail_loc = fl;
-}
-
-/* opening /dev/obd */
-static int obd_class_open(unsigned long flags, void *args)
-{
- ENTRY;
+EXPORT_SYMBOL(ldlm_timeout);
+unsigned int obd_timeout_set;
+EXPORT_SYMBOL(obd_timeout_set);
+unsigned int ldlm_timeout_set;
+EXPORT_SYMBOL(ldlm_timeout_set);
+/* bulk transfer timeout, give up after 100s by default */
+unsigned int bulk_timeout = 100; /* seconds */
+EXPORT_SYMBOL(bulk_timeout);
+/* Adaptive timeout defs here instead of ptlrpc module for /proc/sys/ access */
+unsigned int at_min = 0;
+EXPORT_SYMBOL(at_min);
+unsigned int at_max = 600;
+EXPORT_SYMBOL(at_max);
+unsigned int at_history = 600;
+EXPORT_SYMBOL(at_history);
+int at_early_margin = 5;
+EXPORT_SYMBOL(at_early_margin);
+int at_extra = 30;
+EXPORT_SYMBOL(at_extra);
+
+atomic_long_t obd_dirty_transit_pages;
+EXPORT_SYMBOL(obd_dirty_transit_pages);
+
+char obd_jobid_var[JOBSTATS_JOBID_VAR_MAX_LEN + 1] = JOBSTATS_DISABLE;
+
+#ifdef CONFIG_PROC_FS
+struct lprocfs_stats *obd_memory = NULL;
+EXPORT_SYMBOL(obd_memory);
+#endif
- PORTAL_MODULE_USE;
- RETURN(0);
-}
+char obd_jobid_node[LUSTRE_JOBID_SIZE + 1];
-/* closing /dev/obd */
-static int obd_class_release(unsigned long flags, void *args)
+/* Get jobid of current process by reading the environment variable
+ * stored in between the "env_start" & "env_end" of task struct.
+ *
+ * TODO:
+ * It's better to cache the jobid for later use if there is any
+ * efficient way, the cl_env code probably could be reused for this
+ * purpose.
+ *
+ * If some job scheduler doesn't store jobid in the "env_start/end",
+ * then an upcall could be issued here to get the jobid by utilizing
+ * the userspace tools/api. Then, the jobid must be cached.
+ */
+int lustre_get_jobid(char *jobid)
{
- ENTRY;
+ int jobid_len = LUSTRE_JOBID_SIZE;
+ char tmp_jobid[LUSTRE_JOBID_SIZE] = { 0 };
+ int rc = 0;
+ ENTRY;
+
+ /* Jobstats isn't enabled */
+ if (strcmp(obd_jobid_var, JOBSTATS_DISABLE) == 0)
+ GOTO(out, rc = 0);
+
+ /* Whole node dedicated to single job */
+ if (strcmp(obd_jobid_var, JOBSTATS_NODELOCAL) == 0) {
+ memcpy(tmp_jobid, obd_jobid_node, LUSTRE_JOBID_SIZE);
+ GOTO(out, rc = 0);
+ }
+
+ /* Use process name + fsuid as jobid */
+ if (strcmp(obd_jobid_var, JOBSTATS_PROCNAME_UID) == 0) {
+ snprintf(tmp_jobid, LUSTRE_JOBID_SIZE, "%s.%u",
+ current_comm(),
+ from_kuid(&init_user_ns, current_fsuid()));
+ GOTO(out, rc = 0);
+ }
+
+ rc = cfs_get_environ(obd_jobid_var, tmp_jobid, &jobid_len);
+ if (rc) {
+ if (rc == -EOVERFLOW) {
+ /* For the PBS_JOBID and LOADL_STEP_ID keys (which are
+ * variable length strings instead of just numbers), it
+ * might make sense to keep the unique parts for JobID,
+ * instead of just returning an error. That means a
+ * larger temp buffer for cfs_get_environ(), then
+ * truncating the string at some separator to fit into
+ * the specified jobid_len. Fix later if needed. */
+ static bool printed;
+ if (unlikely(!printed)) {
+ LCONSOLE_ERROR_MSG(0x16b, "%s value too large "
+ "for JobID buffer (%d)\n",
+ obd_jobid_var, jobid_len);
+ printed = true;
+ }
+ } else {
+ CDEBUG((rc == -ENOENT || rc == -EINVAL ||
+ rc == -EDEADLK) ? D_INFO : D_ERROR,
+ "Get jobid for (%s) failed: rc = %d\n",
+ obd_jobid_var, rc);
+ }
+ }
- PORTAL_MODULE_UNUSE;
- RETURN(0);
-}
-#endif
+out:
+ if (rc != 0)
+ RETURN(rc);
-static inline void obd_data2conn(struct lustre_handle *conn,
- struct obd_ioctl_data *data)
-{
- memset(conn, 0, sizeof *conn);
- conn->cookie = data->ioc_cookie;
-}
+ /* Only replace the job ID if it changed. */
+ if (strcmp(jobid, tmp_jobid) != 0)
+ memcpy(jobid, tmp_jobid, jobid_len);
-static inline void obd_conn2data(struct obd_ioctl_data *data,
- struct lustre_handle *conn)
-{
- data->ioc_cookie = conn->cookie;
+ RETURN(0);
}
+EXPORT_SYMBOL(lustre_get_jobid);
-int class_resolve_dev_name(__u32 len, const char *name)
+static int class_resolve_dev_name(__u32 len, const char *name)
{
int rc;
int dev;
}
CDEBUG(D_IOCTL, "cmd = %x\n", cmd);
- if (obd_ioctl_getdata(&buf, &len, (void *)arg)) {
+ if (obd_ioctl_getdata(&buf, &len, (void __user *)arg)) {
CERROR("OBD ioctl: data error\n");
- GOTO(out, err = -EINVAL);
+ RETURN(-EINVAL);
}
data = (struct obd_ioctl_data *)buf;
OBD_ALLOC(lcfg, data->ioc_plen1);
if (lcfg == NULL)
GOTO(out, err = -ENOMEM);
- err = copy_from_user(lcfg, data->ioc_pbuf1, data->ioc_plen1);
+ err = copy_from_user(lcfg, data->ioc_pbuf1,
+ data->ioc_plen1);
if (!err)
err = lustre_cfg_sanity_check(lcfg, data->ioc_plen1);
if (!err)
GOTO(out, err);
}
- case OBD_GET_VERSION:
- if (!data->ioc_inlbuf1) {
- CERROR("No buffer passed in ioctl\n");
- GOTO(out, err = -EINVAL);
- }
+ case OBD_GET_VERSION:
+ if (!data->ioc_inlbuf1) {
+ CERROR("No buffer passed in ioctl\n");
+ GOTO(out, err = -EINVAL);
+ }
- if (strlen(BUILD_VERSION) + 1 > data->ioc_inllen1) {
- CERROR("ioctl buffer too small to hold version\n");
- GOTO(out, err = -EINVAL);
- }
+ if (strlen(LUSTRE_VERSION_STRING) + 1 > data->ioc_inllen1) {
+ CERROR("ioctl buffer too small to hold version\n");
+ GOTO(out, err = -EINVAL);
+ }
- memcpy(data->ioc_bulk, BUILD_VERSION,
- strlen(BUILD_VERSION) + 1);
+ memcpy(data->ioc_bulk, LUSTRE_VERSION_STRING,
+ strlen(LUSTRE_VERSION_STRING) + 1);
- err = obd_ioctl_popdata((void *)arg, data, len);
- if (err)
- err = -EFAULT;
- GOTO(out, err);
+ err = obd_ioctl_popdata((void __user *)arg, data, len);
+ if (err)
+ err = -EFAULT;
+ GOTO(out, err);
case OBD_IOC_NAME2DEV: {
/* Resolve a device name. This does not change the
if (dev < 0)
GOTO(out, err = -EINVAL);
- err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
+ err = obd_ioctl_popdata((void __user *)arg, data,
+ sizeof(*data));
if (err)
err = -EFAULT;
GOTO(out, err);
CDEBUG(D_IOCTL, "device name %s, dev %d\n", data->ioc_inlbuf1,
dev);
- err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
+ err = obd_ioctl_popdata((void __user *)arg, data,
+ sizeof(*data));
if (err)
err = -EFAULT;
GOTO(out, err);
}
- case OBD_IOC_CLOSE_UUID: {
- CDEBUG(D_IOCTL, "closing all connections to uuid %s (NOOP)\n",
- data->ioc_inlbuf1);
- GOTO(out, err = 0);
- }
-
case OBD_IOC_GETDEVICE: {
int index = data->ioc_count;
char *status, *str;
snprintf(str, len - sizeof(*data), "%3d %s %s %s %s %d",
(int)index, status, obd->obd_type->typ_name,
obd->obd_name, obd->obd_uuid.uuid,
- atomic_read(&obd->obd_refcount));
- err = obd_ioctl_popdata((void *)arg, data, len);
+ atomic_read(&obd->obd_refcount));
+ err = obd_ioctl_popdata((void __user *)arg, data, len);
GOTO(out, err = 0);
}
}
- if (data->ioc_dev >= class_devno_max()) {
+ if (data->ioc_dev == OBD_DEV_BY_DEVNAME) {
+ if (data->ioc_inllen4 <= 0 || data->ioc_inlbuf4 == NULL)
+ GOTO(out, err = -EINVAL);
+ if (strnlen(data->ioc_inlbuf4, MAX_OBD_NAME) >= MAX_OBD_NAME)
+ GOTO(out, err = -EINVAL);
+ obd = class_name2obd(data->ioc_inlbuf4);
+ } else if (data->ioc_dev < class_devno_max()) {
+ obd = class_num2obd(data->ioc_dev);
+ } else {
CERROR("OBD ioctl: No device\n");
GOTO(out, err = -EINVAL);
}
- obd = class_num2obd(data->ioc_dev);
if (obd == NULL) {
CERROR("OBD ioctl : No Device %d\n", data->ioc_dev);
GOTO(out, err = -EINVAL);
if (err)
GOTO(out, err);
- err = obd_ioctl_popdata((void *)arg, data, len);
+ err = obd_ioctl_popdata((void __user *)arg, data, len);
if (err)
err = -EFAULT;
GOTO(out, err);
RETURN(err);
} /* class_handle_ioctl */
-
-
-#define OBD_MINOR 241
-#ifdef __KERNEL__
-/* to control /dev/obd */
-static int obd_class_ioctl (struct cfs_psdev_file *pfile, unsigned long cmd,
- void *arg)
-{
- return class_handle_ioctl(cmd, (unsigned long)arg);
-}
-
-/* declare character device */
-struct cfs_psdev_ops obd_psdev_ops = {
- /* .p_open = */ obd_class_open, /* open */
- /* .p_close = */ obd_class_release, /* release */
- /* .p_read = */ NULL,
- /* .p_write = */ NULL,
- /* .p_ioctl = */ obd_class_ioctl /* ioctl */
-};
-
-extern cfs_psdev_t obd_psdev;
-#else
-void *obd_psdev = NULL;
-#endif
-
-EXPORT_SYMBOL(obd_devs);
-EXPORT_SYMBOL(obd_print_fail_loc);
-EXPORT_SYMBOL(obd_race_waitq);
-EXPORT_SYMBOL(obd_race_state);
-EXPORT_SYMBOL(obd_debug_peer_on_timeout);
-EXPORT_SYMBOL(obd_dump_on_timeout);
-EXPORT_SYMBOL(obd_dump_on_eviction);
-EXPORT_SYMBOL(obd_timeout);
-EXPORT_SYMBOL(ldlm_timeout);
-EXPORT_SYMBOL(obd_max_dirty_pages);
-EXPORT_SYMBOL(obd_dirty_pages);
-EXPORT_SYMBOL(ptlrpc_put_connection_superhack);
-
-EXPORT_SYMBOL(proc_lustre_root);
-
-EXPORT_SYMBOL(class_register_type);
-EXPORT_SYMBOL(class_unregister_type);
-EXPORT_SYMBOL(class_get_type);
-EXPORT_SYMBOL(class_put_type);
-EXPORT_SYMBOL(class_name2dev);
-EXPORT_SYMBOL(class_name2obd);
-EXPORT_SYMBOL(class_uuid2dev);
-EXPORT_SYMBOL(class_uuid2obd);
-EXPORT_SYMBOL(class_find_client_obd);
-EXPORT_SYMBOL(class_find_client_notype);
-EXPORT_SYMBOL(class_devices_in_group);
-EXPORT_SYMBOL(class_conn2export);
-EXPORT_SYMBOL(class_exp2obd);
-EXPORT_SYMBOL(class_conn2obd);
-EXPORT_SYMBOL(class_exp2cliimp);
-EXPORT_SYMBOL(class_conn2cliimp);
-EXPORT_SYMBOL(class_disconnect);
-EXPORT_SYMBOL(class_num2obd);
-
-/* uuid.c */
-EXPORT_SYMBOL(class_uuid_unparse);
-EXPORT_SYMBOL(lustre_uuid_to_peer);
-
-EXPORT_SYMBOL(class_handle_hash);
-EXPORT_SYMBOL(class_handle_unhash);
-EXPORT_SYMBOL(class_handle_hash_back);
-EXPORT_SYMBOL(class_handle2object);
-EXPORT_SYMBOL(class_handle_free_cb);
-
-/* obd_config.c */
-EXPORT_SYMBOL(class_incref);
-EXPORT_SYMBOL(class_decref);
-EXPORT_SYMBOL(class_get_profile);
-EXPORT_SYMBOL(class_del_profile);
-EXPORT_SYMBOL(class_del_profiles);
-EXPORT_SYMBOL(class_process_config);
-EXPORT_SYMBOL(class_process_proc_param);
-EXPORT_SYMBOL(class_config_parse_llog);
-EXPORT_SYMBOL(class_config_dump_llog);
-EXPORT_SYMBOL(class_attach);
-EXPORT_SYMBOL(class_setup);
-EXPORT_SYMBOL(class_cleanup);
-EXPORT_SYMBOL(class_detach);
-EXPORT_SYMBOL(class_manual_cleanup);
-
-/* mea.c */
-EXPORT_SYMBOL(mea_name2idx);
-EXPORT_SYMBOL(raw_name2idx);
-
#define OBD_INIT_CHECK
#ifdef OBD_INIT_CHECK
-int obd_init_checks(void)
+static int obd_init_checks(void)
{
__u64 u64val, div64val;
char buf[64];
int len, ret = 0;
- CDEBUG(D_INFO, "LPU64=%s, LPD64=%s, LPX64=%s, LPSZ=%s, LPSSZ=%s\n",
- LPU64, LPD64, LPX64, LPSZ, LPSSZ);
-
- CDEBUG(D_INFO, "OBD_OBJECT_EOF = "LPX64"\n", (__u64)OBD_OBJECT_EOF);
+ CDEBUG(D_INFO, "OBD_OBJECT_EOF = %#llx\n", (__u64)OBD_OBJECT_EOF);
u64val = OBD_OBJECT_EOF;
- CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = "LPX64"\n", u64val);
+ CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = %#llx\n", u64val);
if (u64val != OBD_OBJECT_EOF) {
- CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
+ CERROR("__u64 %#llx(%d) != 0xffffffffffffffff\n",
u64val, (int)sizeof(u64val));
ret = -EINVAL;
}
- len = snprintf(buf, sizeof(buf), LPX64, u64val);
+ len = snprintf(buf, sizeof(buf), "%#llx", u64val);
if (len != 18) {
- CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
+ CWARN("u64 hex wrong length! strlen(%s)=%d != 18\n", buf, len);
ret = -EINVAL;
}
div64val = OBD_OBJECT_EOF;
- CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = "LPX64"\n", u64val);
+ CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = %#llx\n", u64val);
if (u64val != OBD_OBJECT_EOF) {
- CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
+ CERROR("__u64 %#llx(%d) != 0xffffffffffffffff\n",
u64val, (int)sizeof(u64val));
ret = -EOVERFLOW;
}
if (u64val >> 8 != OBD_OBJECT_EOF >> 8) {
- CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
+ CERROR("__u64 %#llx(%d) != 0xffffffffffffffff\n",
u64val, (int)sizeof(u64val));
return -EOVERFLOW;
}
if (do_div(div64val, 256) != (u64val & 255)) {
- CERROR("do_div("LPX64",256) != "LPU64"\n", u64val, u64val &255);
+ CERROR("do_div(%#llx,256) != %llu\n", u64val, u64val & 255);
return -EOVERFLOW;
}
if (u64val >> 8 != div64val) {
- CERROR("do_div("LPX64",256) "LPU64" != "LPU64"\n",
+ CERROR("do_div(%#llx,256) %llu != %llu\n",
u64val, div64val, u64val >> 8);
return -EOVERFLOW;
}
- len = snprintf(buf, sizeof(buf), LPX64, u64val);
+ len = snprintf(buf, sizeof(buf), "%#llx", u64val);
if (len != 18) {
- CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
+ CWARN("u64 hex wrong length! strlen(%s)=%d != 18\n", buf, len);
ret = -EINVAL;
}
- len = snprintf(buf, sizeof(buf), LPU64, u64val);
+ len = snprintf(buf, sizeof(buf), "%llu", u64val);
if (len != 20) {
- CWARN("LPU64 wrong length! strlen(%s)=%d != 20\n", buf, len);
+ CWARN("u64 wrong length! strlen(%s)=%d != 20\n", buf, len);
ret = -EINVAL;
}
- len = snprintf(buf, sizeof(buf), LPD64, u64val);
+ len = snprintf(buf, sizeof(buf), "%lld", u64val);
if (len != 2) {
- CWARN("LPD64 wrong length! strlen(%s)=%d != 2\n", buf, len);
+ CWARN("s64 wrong length! strlen(%s)=%d != 2\n", buf, len);
ret = -EINVAL;
}
- if ((u64val & ~CFS_PAGE_MASK) >= CFS_PAGE_SIZE) {
- CWARN("mask failed: u64val "LPU64" >= "LPU64"\n", u64val,
- (__u64)CFS_PAGE_SIZE);
+ if ((u64val & ~PAGE_MASK) >= PAGE_SIZE) {
+ CWARN("mask failed: u64val %llu >= %llu\n", u64val,
+ (__u64)PAGE_SIZE);
ret = -EINVAL;
}
#define obd_init_checks() do {} while(0)
#endif
-extern spinlock_t obd_types_lock;
-extern int class_procfs_init(void);
-extern int class_procfs_clean(void);
-
-#ifdef __KERNEL__
-static int __init init_obdclass(void)
-#else
-int init_obdclass(void)
+static int __init obdclass_init(void)
+{
+ int i, err;
+
+ spin_lock_init(&obd_stale_export_lock);
+ INIT_LIST_HEAD(&obd_stale_exports);
+ atomic_set(&obd_stale_export_num, 0);
+
+ LCONSOLE_INFO("Lustre: Build Version: "LUSTRE_VERSION_STRING"\n");
+
+ spin_lock_init(&obd_types_lock);
+ obd_zombie_impexp_init();
+#ifdef CONFIG_PROC_FS
+ obd_memory = lprocfs_alloc_stats(OBD_STATS_NUM,
+ LPROCFS_STATS_FLAG_NONE |
+ LPROCFS_STATS_FLAG_IRQ_SAFE);
+ if (obd_memory == NULL) {
+ CERROR("kmalloc of 'obd_memory' failed\n");
+ RETURN(-ENOMEM);
+ }
+
+ lprocfs_counter_init(obd_memory, OBD_MEMORY_STAT,
+ LPROCFS_CNTR_AVGMINMAX,
+ "memused", "bytes");
#endif
+ err = obd_init_checks();
+ if (err == -EOVERFLOW)
+ return err;
+
+ class_init_uuidlist();
+ err = class_handle_init();
+ if (err)
+ return err;
+
+ INIT_LIST_HEAD(&obd_types);
+
+ err = misc_register(&obd_psdev);
+ if (err) {
+ CERROR("cannot register %d err %d\n", OBD_DEV_MINOR, err);
+ return err;
+ }
+
+ /* This struct is already zeroed for us (static global) */
+ for (i = 0; i < class_devno_max(); i++)
+ obd_devs[i] = NULL;
+
+ /* Default the dirty page cache cap to 1/2 of system memory.
+ * For clients with less memory, a larger fraction is needed
+ * for other purposes (mostly for BGL). */
+ if (totalram_pages <= 512 << (20 - PAGE_SHIFT))
+ obd_max_dirty_pages = totalram_pages / 4;
+ else
+ obd_max_dirty_pages = totalram_pages / 2;
+
+ err = obd_init_caches();
+ if (err)
+ return err;
+ err = class_procfs_init();
+ if (err)
+ return err;
+
+ err = lu_global_init();
+ if (err)
+ return err;
+
+ err = cl_global_init();
+ if (err != 0)
+ return err;
+
+#ifdef HAVE_SERVER_SUPPORT
+ err = dt_global_init();
+ if (err != 0)
+ return err;
+
+ err = lu_ucred_global_init();
+ if (err != 0)
+ return err;
+#endif /* HAVE_SERVER_SUPPORT */
+
+ err = llog_info_init();
+ if (err)
+ return err;
+
+ err = lustre_register_fs();
+
+ return err;
+}
+
+void obd_update_maxusage(void)
{
- int i, err;
-#ifdef __KERNEL__
- int lustre_register_fs(void);
+ __u64 max;
- for (i = CAPA_SITE_CLIENT; i < CAPA_SITE_MAX; i++)
- CFS_INIT_LIST_HEAD(&capa_list[i]);
-#endif
+ max = obd_memory_sum();
- LCONSOLE_INFO("OBD class driver, http://www.lustre.org/\n");
- LCONSOLE_INFO(" Lustre Version: "LUSTRE_VERSION_STRING"\n");
- LCONSOLE_INFO(" Build Version: "BUILD_VERSION"\n");
-
- spin_lock_init(&obd_types_lock);
- cfs_waitq_init(&obd_race_waitq);
- obd_zombie_impexp_init();
-#ifdef LPROCFS
- obd_memory = lprocfs_alloc_stats(OBD_STATS_NUM,
- LPROCFS_STATS_FLAG_PERCPU);
- if (obd_memory == NULL) {
- CERROR("kmalloc of 'obd_memory' failed\n");
- RETURN(-ENOMEM);
- }
+ spin_lock(&obd_updatemax_lock);
+ if (max > obd_max_alloc)
+ obd_max_alloc = max;
+ spin_unlock(&obd_updatemax_lock);
+}
+EXPORT_SYMBOL(obd_update_maxusage);
- lprocfs_counter_init(obd_memory, OBD_MEMORY_STAT,
- LPROCFS_CNTR_AVGMINMAX,
- "memused", "bytes");
- lprocfs_counter_init(obd_memory, OBD_MEMORY_PAGES_STAT,
- LPROCFS_CNTR_AVGMINMAX,
- "pagesused", "pages");
-#endif
- err = obd_init_checks();
- if (err == -EOVERFLOW)
- return err;
-
- class_init_uuidlist();
- err = class_handle_init();
- if (err)
- return err;
-
- spin_lock_init(&obd_dev_lock);
- CFS_INIT_LIST_HEAD(&obd_types);
-
- err = cfs_psdev_register(&obd_psdev);
- if (err) {
- CERROR("cannot register %d err %d\n", OBD_MINOR, err);
- return err;
- }
+#ifdef CONFIG_PROC_FS
+__u64 obd_memory_max(void)
+{
+ __u64 ret;
- /* This struct is already zerod for us (static global) */
- for (i = 0; i < class_devno_max(); i++)
- obd_devs[i] = NULL;
-
- /* Default the dirty page cache cap to 1/2 of system memory.
- * For clients with less memory, a larger fraction is needed
- * for other purposes (mostly for BGL). */
- if (num_physpages <= 512 << (20 - CFS_PAGE_SHIFT))
- obd_max_dirty_pages = num_physpages / 4;
- else
- obd_max_dirty_pages = num_physpages / 2;
-
- err = obd_init_caches();
- if (err)
- return err;
-#ifdef __KERNEL__
- err = lu_global_init();
- if (err)
- return err;
- err = class_procfs_init();
- if (err)
- return err;
- err = lustre_register_fs();
-#endif
+ obd_update_maxusage();
+ spin_lock(&obd_updatemax_lock);
+ ret = obd_max_alloc;
+ spin_unlock(&obd_updatemax_lock);
- return err;
+ return ret;
}
+#endif /* CONFIG_PROC_FS */
-/* liblustre doesn't call cleanup_obdclass, apparently. we carry on in this
- * ifdef to the end of the file to cover module and versioning goo.*/
-#ifdef __KERNEL__
-static void cleanup_obdclass(void)
+static void __exit obdclass_exit(void)
{
- int i;
- int lustre_unregister_fs(void);
- __u64 memory_leaked, pages_leaked;
- __u64 memory_max, pages_max;
- ENTRY;
+ __u64 memory_leaked;
+ __u64 memory_max;
+ ENTRY;
- lustre_unregister_fs();
+ lustre_unregister_fs();
- cfs_psdev_deregister(&obd_psdev);
- for (i = 0; i < class_devno_max(); i++) {
- struct obd_device *obd = class_num2obd(i);
- if (obd && obd->obd_set_up &&
- OBT(obd) && OBP(obd, detach)) {
- /* XXX should this call generic detach otherwise? */
- LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
- OBP(obd, detach)(obd);
- }
- }
- lu_global_fini();
+ misc_deregister(&obd_psdev);
+ llog_info_fini();
+#ifdef HAVE_SERVER_SUPPORT
+ lu_ucred_global_fini();
+ dt_global_fini();
+#endif /* HAVE_SERVER_SUPPORT */
+ cl_global_fini();
+ lu_global_fini();
obd_cleanup_caches();
obd_sysctl_clean();
class_handle_cleanup();
class_exit_uuidlist();
obd_zombie_impexp_stop();
+ LASSERT(list_empty(&obd_stale_exports));
memory_leaked = obd_memory_sum();
- pages_leaked = obd_pages_sum();
memory_max = obd_memory_max();
- pages_max = obd_pages_max();
lprocfs_free_stats(&obd_memory);
- if (memory_leaked > 0) {
- CWARN("Memory leaks detected (max "LPU64", leaked "LPD64")\n",
- memory_max, memory_leaked);
- }
- if (pages_leaked > 0) {
- CWARN("Page leaks detected (max "LPU64", leaked "LPU64")\n",
- pages_max, pages_leaked);
- }
+ CDEBUG((memory_leaked) ? D_ERROR : D_INFO,
+ "obd_memory max: %llu, leaked: %llu\n",
+ memory_max, memory_leaked);
EXIT;
}
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Class Driver Build Version: " BUILD_VERSION);
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Lustre Class Driver");
+MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");
-cfs_module(obdclass, LUSTRE_VERSION_STRING, init_obdclass, cleanup_obdclass);
-#endif
+module_init(obdclass_init);
+module_exit(obdclass_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff