-/* -*- 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.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Author: Yury Umanets <umka@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_FID
-#ifdef __KERNEL__
-# include <libcfs/libcfs.h>
-# include <linux/module.h>
-#else /* __KERNEL__ */
-# include <liblustre.h>
-#endif
-
+#include <linux/module.h>
+#include <libcfs/libcfs.h>
#include <obd.h>
#include <obd_class.h>
-#include <dt_object.h>
-#include <md_object.h>
#include <obd_support.h>
-#include <lustre_req_layout.h>
#include <lustre_fid.h>
/* mdc RPC locks */
#include <lustre_mdc.h>
#include "fid_internal.h"
-static int seq_client_rpc(struct lu_client_seq *seq, struct lu_seq_range *input,
+static int seq_client_rpc(struct lu_client_seq *seq,
struct lu_seq_range *output, __u32 opc,
const char *opcname)
{
- struct obd_export *exp = seq->lcs_exp;
- struct ptlrpc_request *req;
- struct lu_seq_range *out, *in;
- __u32 *op;
- int rc;
- ENTRY;
-
- req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_SEQ_QUERY,
- LUSTRE_MDS_VERSION, SEQ_QUERY);
- if (req == NULL)
- RETURN(-ENOMEM);
-
- /* Init operation code */
- op = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_OPC);
- *op = opc;
-
- /* Zero out input range, this is not recovery yet. */
- in = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_RANGE);
- if (input != NULL)
- *in = *input;
- else
- range_init(in);
-
- ptlrpc_request_set_replen(req);
-
- if (seq->lcs_type == LUSTRE_SEQ_METADATA) {
- req->rq_request_portal = (opc == SEQ_ALLOC_SUPER) ?
- SEQ_CONTROLLER_PORTAL : SEQ_METADATA_PORTAL;
- /* update mdt field of *in, it is required for fld update
- * on super sequence allocator node. */
- if (opc == SEQ_ALLOC_SUPER)
- in->lsr_mdt = seq->lcs_space.lsr_mdt;
- } else {
- LASSERT(opc == SEQ_ALLOC_META);
- req->rq_request_portal = SEQ_DATA_PORTAL;
- }
- ptlrpc_at_set_req_timeout(req);
-
- mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
- rc = ptlrpc_queue_wait(req);
- mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
-
- if (rc)
- GOTO(out_req, rc);
-
- out = req_capsule_server_get(&req->rq_pill, &RMF_SEQ_RANGE);
- *output = *out;
-
- if (!range_is_sane(output)) {
- CERROR("%s: Invalid range received from server: "
- DRANGE"\n", seq->lcs_name, PRANGE(output));
- GOTO(out_req, rc = -EINVAL);
- }
-
- if (range_is_exhausted(output)) {
- CERROR("%s: Range received from server is exhausted: "
- DRANGE"]\n", seq->lcs_name, PRANGE(output));
- GOTO(out_req, rc = -EINVAL);
- }
- *in = *out;
-
- CDEBUG(D_INFO, "%s: Allocated %s-sequence "DRANGE"]\n",
- seq->lcs_name, opcname, PRANGE(output));
-
- EXIT;
+ struct obd_export *exp = seq->lcs_exp;
+ struct ptlrpc_request *req;
+ struct lu_seq_range *out, *in;
+ __u32 *op;
+ unsigned int debug_mask;
+ int rc;
+ ENTRY;
+
+ LASSERT(exp != NULL && !IS_ERR(exp));
+ req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_SEQ_QUERY,
+ LUSTRE_MDS_VERSION, SEQ_QUERY);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ /* Init operation code */
+ op = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_OPC);
+ *op = opc;
+
+ /* Zero out input range, this is not recovery yet. */
+ in = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_RANGE);
+ lu_seq_range_init(in);
+
+ ptlrpc_request_set_replen(req);
+
+ in->lsr_index = seq->lcs_space.lsr_index;
+ if (seq->lcs_type == LUSTRE_SEQ_METADATA)
+ fld_range_set_mdt(in);
+ else
+ fld_range_set_ost(in);
+
+ if (opc == SEQ_ALLOC_SUPER) {
+ req->rq_request_portal = SEQ_CONTROLLER_PORTAL;
+ req->rq_reply_portal = MDC_REPLY_PORTAL;
+ /* During allocating super sequence for data object,
+ * the current thread might hold the export of MDT0(MDT0
+ * precreating objects on this OST), and it will send the
+ * request to MDT0 here, so we can not keep resending the
+ * request here, otherwise if MDT0 is failed(umounted),
+ * it can not release the export of MDT0 */
+ if (seq->lcs_type == LUSTRE_SEQ_DATA)
+ req->rq_no_delay = req->rq_no_resend = 1;
+ debug_mask = D_CONSOLE;
+ } else {
+ if (seq->lcs_type == LUSTRE_SEQ_METADATA) {
+ req->rq_reply_portal = MDC_REPLY_PORTAL;
+ req->rq_request_portal = SEQ_METADATA_PORTAL;
+ } else {
+ req->rq_reply_portal = OSC_REPLY_PORTAL;
+ req->rq_request_portal = SEQ_DATA_PORTAL;
+ }
+
+ debug_mask = D_INFO;
+ }
+
+ /* Allow seq client RPC during recovery time. */
+ req->rq_allow_replay = 1;
+
+ ptlrpc_at_set_req_timeout(req);
+
+ rc = ptlrpc_queue_wait(req);
+
+ if (rc)
+ GOTO(out_req, rc);
+
+ out = req_capsule_server_get(&req->rq_pill, &RMF_SEQ_RANGE);
+ *output = *out;
+
+ if (!lu_seq_range_is_sane(output)) {
+ CERROR("%s: Invalid range received from server: "
+ DRANGE"\n", seq->lcs_name, PRANGE(output));
+ GOTO(out_req, rc = -EINVAL);
+ }
+
+ if (lu_seq_range_is_exhausted(output)) {
+ CERROR("%s: Range received from server is exhausted: "
+ DRANGE"]\n", seq->lcs_name, PRANGE(output));
+ GOTO(out_req, rc = -EINVAL);
+ }
+
+ CDEBUG_LIMIT(debug_mask, "%s: Allocated %s-sequence "DRANGE"]\n",
+ seq->lcs_name, opcname, PRANGE(output));
+
+ EXIT;
out_req:
- ptlrpc_req_finished(req);
- return rc;
+ ptlrpc_req_finished(req);
+ return rc;
}
/* Request sequence-controller node to allocate new super-sequence. */
-int seq_client_replay_super(struct lu_client_seq *seq,
- struct lu_seq_range *range,
- const struct lu_env *env)
+int seq_client_alloc_super(struct lu_client_seq *seq,
+ const struct lu_env *env)
{
int rc;
ENTRY;
- down(&seq->lcs_sem);
+ mutex_lock(&seq->lcs_mutex);
-#ifdef __KERNEL__
if (seq->lcs_srv) {
+#ifdef HAVE_SEQ_SERVER
LASSERT(env != NULL);
- rc = seq_server_alloc_super(seq->lcs_srv, range,
- &seq->lcs_space, env);
- } else {
+ rc = seq_server_alloc_super(seq->lcs_srv, &seq->lcs_space,
+ env);
+#else
+ rc = 0;
#endif
- rc = seq_client_rpc(seq, range, &seq->lcs_space,
+ } else {
+ /* Check whether the connection to seq controller has been
+ * setup (lcs_exp != NULL) */
+ if (seq->lcs_exp == NULL) {
+ mutex_unlock(&seq->lcs_mutex);
+ RETURN(-EINPROGRESS);
+ }
+
+ rc = seq_client_rpc(seq, &seq->lcs_space,
SEQ_ALLOC_SUPER, "super");
-#ifdef __KERNEL__
}
-#endif
- up(&seq->lcs_sem);
+ mutex_unlock(&seq->lcs_mutex);
RETURN(rc);
}
-/* Request sequence-controller node to allocate new super-sequence. */
-int seq_client_alloc_super(struct lu_client_seq *seq,
- const struct lu_env *env)
-{
- ENTRY;
- RETURN(seq_client_replay_super(seq, NULL, env));
-}
-
/* Request sequence-controller node to allocate new meta-sequence. */
-static int seq_client_alloc_meta(struct lu_client_seq *seq,
- const struct lu_env *env)
+static int seq_client_alloc_meta(const struct lu_env *env,
+ struct lu_client_seq *seq)
{
int rc;
ENTRY;
-#ifdef __KERNEL__
if (seq->lcs_srv) {
+#ifdef HAVE_SEQ_SERVER
LASSERT(env != NULL);
- rc = seq_server_alloc_meta(seq->lcs_srv, NULL,
- &seq->lcs_space, env);
- } else {
+ rc = seq_server_alloc_meta(seq->lcs_srv, &seq->lcs_space, env);
+#else
+ rc = 0;
#endif
- rc = seq_client_rpc(seq, NULL, &seq->lcs_space,
- SEQ_ALLOC_META, "meta");
-#ifdef __KERNEL__
+ } else {
+ do {
+ /* If meta server return -EINPROGRESS or EAGAIN,
+ * it means meta server might not be ready to
+ * allocate super sequence from sequence controller
+ * (MDT0)yet */
+ rc = seq_client_rpc(seq, &seq->lcs_space,
+ SEQ_ALLOC_META, "meta");
+ } while (rc == -EINPROGRESS || rc == -EAGAIN);
}
-#endif
+
RETURN(rc);
}
/* Allocate new sequence for client. */
-static int seq_client_alloc_seq(struct lu_client_seq *seq, seqno_t *seqnr)
+static int seq_client_alloc_seq(const struct lu_env *env,
+ struct lu_client_seq *seq, u64 *seqnr)
{
- int rc;
- ENTRY;
+ int rc;
+ ENTRY;
- LASSERT(range_is_sane(&seq->lcs_space));
+ LASSERT(lu_seq_range_is_sane(&seq->lcs_space));
- if (range_is_exhausted(&seq->lcs_space)) {
- rc = seq_client_alloc_meta(seq, NULL);
+ if (lu_seq_range_is_exhausted(&seq->lcs_space)) {
+ rc = seq_client_alloc_meta(env, seq);
if (rc) {
- CERROR("%s: Can't allocate new meta-sequence, "
+ CERROR("%s: Can't allocate new meta-sequence,"
"rc %d\n", seq->lcs_name, rc);
RETURN(rc);
} else {
rc = 0;
}
- LASSERT(!range_is_exhausted(&seq->lcs_space));
- *seqnr = seq->lcs_space.lsr_start;
- seq->lcs_space.lsr_start += 1;
+ LASSERT(!lu_seq_range_is_exhausted(&seq->lcs_space));
+ *seqnr = seq->lcs_space.lsr_start;
+ seq->lcs_space.lsr_start += 1;
CDEBUG(D_INFO, "%s: Allocated sequence ["LPX64"]\n", seq->lcs_name,
*seqnr);
RETURN(rc);
}
+static int seq_fid_alloc_prep(struct lu_client_seq *seq,
+ wait_queue_t *link)
+{
+ if (seq->lcs_update) {
+ add_wait_queue(&seq->lcs_waitq, link);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ mutex_unlock(&seq->lcs_mutex);
+
+ schedule();
+
+ mutex_lock(&seq->lcs_mutex);
+ remove_wait_queue(&seq->lcs_waitq, link);
+ set_current_state(TASK_RUNNING);
+ return -EAGAIN;
+ }
+ ++seq->lcs_update;
+ mutex_unlock(&seq->lcs_mutex);
+ return 0;
+}
+
+static void seq_fid_alloc_fini(struct lu_client_seq *seq)
+{
+ LASSERT(seq->lcs_update == 1);
+ mutex_lock(&seq->lcs_mutex);
+ --seq->lcs_update;
+ wake_up(&seq->lcs_waitq);
+}
+
+/**
+ * Allocate the whole seq to the caller.
+ **/
+int seq_client_get_seq(const struct lu_env *env,
+ struct lu_client_seq *seq, u64 *seqnr)
+{
+ wait_queue_t link;
+ int rc;
+
+ LASSERT(seqnr != NULL);
+ mutex_lock(&seq->lcs_mutex);
+ init_waitqueue_entry(&link, current);
+
+ while (1) {
+ rc = seq_fid_alloc_prep(seq, &link);
+ if (rc == 0)
+ break;
+ }
+
+ rc = seq_client_alloc_seq(env, seq, seqnr);
+ if (rc) {
+ CERROR("%s: Can't allocate new sequence, "
+ "rc %d\n", seq->lcs_name, rc);
+ seq_fid_alloc_fini(seq);
+ mutex_unlock(&seq->lcs_mutex);
+ return rc;
+ }
+
+ CDEBUG(D_INFO, "%s: allocate sequence "
+ "[0x%16.16"LPF64"x]\n", seq->lcs_name, *seqnr);
+
+ /* Since the caller require the whole seq,
+ * so marked this seq to be used */
+ if (seq->lcs_type == LUSTRE_SEQ_METADATA)
+ seq->lcs_fid.f_oid = LUSTRE_METADATA_SEQ_MAX_WIDTH;
+ else
+ seq->lcs_fid.f_oid = LUSTRE_DATA_SEQ_MAX_WIDTH;
+
+ seq->lcs_fid.f_seq = *seqnr;
+ seq->lcs_fid.f_ver = 0;
+ /*
+ * Inform caller that sequence switch is performed to allow it
+ * to setup FLD for it.
+ */
+ seq_fid_alloc_fini(seq);
+ mutex_unlock(&seq->lcs_mutex);
+
+ return rc;
+}
+EXPORT_SYMBOL(seq_client_get_seq);
+
/* Allocate new fid on passed client @seq and save it to @fid. */
-int seq_client_alloc_fid(struct lu_client_seq *seq, struct lu_fid *fid)
+int seq_client_alloc_fid(const struct lu_env *env,
+ struct lu_client_seq *seq, struct lu_fid *fid)
{
- int rc;
- ENTRY;
+ wait_queue_t link;
+ int rc;
+ ENTRY;
+
+ LASSERT(seq != NULL);
+ LASSERT(fid != NULL);
+
+ init_waitqueue_entry(&link, current);
+ mutex_lock(&seq->lcs_mutex);
- LASSERT(seq != NULL);
- LASSERT(fid != NULL);
+ if (OBD_FAIL_CHECK(OBD_FAIL_SEQ_EXHAUST))
+ seq->lcs_fid.f_oid = seq->lcs_width;
- down(&seq->lcs_sem);
+ while (1) {
+ u64 seqnr;
- if (fid_is_zero(&seq->lcs_fid) ||
- fid_oid(&seq->lcs_fid) >= seq->lcs_width)
- {
- seqno_t seqnr;
+ if (!fid_is_zero(&seq->lcs_fid) &&
+ fid_oid(&seq->lcs_fid) < seq->lcs_width) {
+ /* Just bump last allocated fid and return to caller. */
+ seq->lcs_fid.f_oid += 1;
+ rc = 0;
+ break;
+ }
+
+ rc = seq_fid_alloc_prep(seq, &link);
+ if (rc)
+ continue;
- rc = seq_client_alloc_seq(seq, &seqnr);
+ rc = seq_client_alloc_seq(env, seq, &seqnr);
if (rc) {
CERROR("%s: Can't allocate new sequence, "
"rc %d\n", seq->lcs_name, rc);
- up(&seq->lcs_sem);
+ seq_fid_alloc_fini(seq);
+ mutex_unlock(&seq->lcs_mutex);
RETURN(rc);
}
* to setup FLD for it.
*/
rc = 1;
- } else {
- /* Just bump last allocated fid and return to caller. */
- seq->lcs_fid.f_oid += 1;
- rc = 0;
+
+ seq_fid_alloc_fini(seq);
+ break;
}
*fid = seq->lcs_fid;
- up(&seq->lcs_sem);
+ mutex_unlock(&seq->lcs_mutex);
CDEBUG(D_INFO, "%s: Allocated FID "DFID"\n", seq->lcs_name, PFID(fid));
RETURN(rc);
*/
void seq_client_flush(struct lu_client_seq *seq)
{
- LASSERT(seq != NULL);
- down(&seq->lcs_sem);
+ wait_queue_t link;
+
+ LASSERT(seq != NULL);
+ init_waitqueue_entry(&link, current);
+ mutex_lock(&seq->lcs_mutex);
+
+ while (seq->lcs_update) {
+ add_wait_queue(&seq->lcs_waitq, &link);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ mutex_unlock(&seq->lcs_mutex);
+
+ schedule();
+
+ mutex_lock(&seq->lcs_mutex);
+ remove_wait_queue(&seq->lcs_waitq, &link);
+ set_current_state(TASK_RUNNING);
+ }
+
fid_zero(&seq->lcs_fid);
/**
* this id shld not be used for seq range allocation.
* set to -1 for dgb check.
*/
- seq->lcs_space.lsr_mdt = -1;
+ seq->lcs_space.lsr_index = -1;
- range_init(&seq->lcs_space);
- up(&seq->lcs_sem);
+ lu_seq_range_init(&seq->lcs_space);
+ mutex_unlock(&seq->lcs_mutex);
}
EXPORT_SYMBOL(seq_client_flush);
-static void seq_client_proc_fini(struct lu_client_seq *seq);
+static void seq_client_proc_fini(struct lu_client_seq *seq)
+{
+#ifdef CONFIG_PROC_FS
+ ENTRY;
+ if (seq->lcs_proc_dir) {
+ if (!IS_ERR(seq->lcs_proc_dir))
+ lprocfs_remove(&seq->lcs_proc_dir);
+ seq->lcs_proc_dir = NULL;
+ }
+ EXIT;
+#endif /* CONFIG_PROC_FS */
+}
-#ifdef LPROCFS
static int seq_client_proc_init(struct lu_client_seq *seq)
{
+#ifdef CONFIG_PROC_FS
int rc;
ENTRY;
- seq->lcs_proc_dir = lprocfs_register(seq->lcs_name,
- seq_type_proc_dir,
- NULL, NULL);
-
+ seq->lcs_proc_dir = lprocfs_register(seq->lcs_name, seq_type_proc_dir,
+ NULL, NULL);
if (IS_ERR(seq->lcs_proc_dir)) {
CERROR("%s: LProcFS failed in seq-init\n",
seq->lcs_name);
RETURN(rc);
}
- rc = lprocfs_add_vars(seq->lcs_proc_dir,
- seq_client_proc_list, seq);
+ rc = lprocfs_add_vars(seq->lcs_proc_dir, seq_client_proc_list, seq);
if (rc) {
CERROR("%s: Can't init sequence manager "
"proc, rc %d\n", seq->lcs_name, rc);
out_cleanup:
seq_client_proc_fini(seq);
return rc;
-}
-
-static void seq_client_proc_fini(struct lu_client_seq *seq)
-{
- ENTRY;
- if (seq->lcs_proc_dir) {
- if (!IS_ERR(seq->lcs_proc_dir))
- lprocfs_remove(&seq->lcs_proc_dir);
- seq->lcs_proc_dir = NULL;
- }
- EXIT;
-}
-#else
-static int seq_client_proc_init(struct lu_client_seq *seq)
-{
- return 0;
-}
-static void seq_client_proc_fini(struct lu_client_seq *seq)
-{
- return;
+#else /* !CONFIG_PROC_FS */
+ return 0;
+#endif /* CONFIG_PROC_FS */
}
-#endif
int seq_client_init(struct lu_client_seq *seq,
struct obd_export *exp,
const char *prefix,
struct lu_server_seq *srv)
{
- int rc;
- ENTRY;
+ int rc;
+ ENTRY;
- LASSERT(seq != NULL);
- LASSERT(prefix != NULL);
+ LASSERT(seq != NULL);
+ LASSERT(prefix != NULL);
- seq->lcs_exp = exp;
- seq->lcs_srv = srv;
- seq->lcs_type = type;
- sema_init(&seq->lcs_sem, 1);
- seq->lcs_width = LUSTRE_SEQ_MAX_WIDTH;
+ seq->lcs_srv = srv;
+ seq->lcs_type = type;
- /* Make sure that things are clear before work is started. */
- seq_client_flush(seq);
+ mutex_init(&seq->lcs_mutex);
+ if (type == LUSTRE_SEQ_METADATA)
+ seq->lcs_width = LUSTRE_METADATA_SEQ_MAX_WIDTH;
+ else
+ seq->lcs_width = LUSTRE_DATA_SEQ_MAX_WIDTH;
- if (exp == NULL) {
- LASSERT(seq->lcs_srv != NULL);
- } else {
- LASSERT(seq->lcs_exp != NULL);
- seq->lcs_exp = class_export_get(seq->lcs_exp);
- }
+ init_waitqueue_head(&seq->lcs_waitq);
+ /* Make sure that things are clear before work is started. */
+ seq_client_flush(seq);
- snprintf(seq->lcs_name, sizeof(seq->lcs_name),
- "cli-%s", prefix);
+ if (exp != NULL)
+ seq->lcs_exp = class_export_get(exp);
- rc = seq_client_proc_init(seq);
- if (rc)
- seq_client_fini(seq);
- RETURN(rc);
+ snprintf(seq->lcs_name, sizeof(seq->lcs_name),
+ "cli-%s", prefix);
+
+ rc = seq_client_proc_init(seq);
+ if (rc)
+ seq_client_fini(seq);
+ RETURN(rc);
}
EXPORT_SYMBOL(seq_client_init);
EXIT;
}
EXPORT_SYMBOL(seq_client_fini);
+
+int client_fid_init(struct obd_device *obd,
+ struct obd_export *exp, enum lu_cli_type type)
+{
+ struct client_obd *cli = &obd->u.cli;
+ char *prefix;
+ int rc;
+ ENTRY;
+
+ OBD_ALLOC_PTR(cli->cl_seq);
+ if (cli->cl_seq == NULL)
+ RETURN(-ENOMEM);
+
+ OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
+ if (prefix == NULL)
+ GOTO(out_free_seq, rc = -ENOMEM);
+
+ snprintf(prefix, MAX_OBD_NAME + 5, "cli-%s", obd->obd_name);
+
+ /* Init client side sequence-manager */
+ rc = seq_client_init(cli->cl_seq, exp, type, prefix, NULL);
+ OBD_FREE(prefix, MAX_OBD_NAME + 5);
+ if (rc)
+ GOTO(out_free_seq, rc);
+
+ RETURN(rc);
+out_free_seq:
+ OBD_FREE_PTR(cli->cl_seq);
+ cli->cl_seq = NULL;
+ return rc;
+}
+EXPORT_SYMBOL(client_fid_init);
+
+int client_fid_fini(struct obd_device *obd)
+{
+ struct client_obd *cli = &obd->u.cli;
+ ENTRY;
+
+ if (cli->cl_seq != NULL) {
+ seq_client_fini(cli->cl_seq);
+ OBD_FREE_PTR(cli->cl_seq);
+ cli->cl_seq = NULL;
+ }
+
+ RETURN(0);
+}
+EXPORT_SYMBOL(client_fid_fini);
+
+struct proc_dir_entry *seq_type_proc_dir;
+
+static int __init fid_mod_init(void)
+{
+ seq_type_proc_dir = lprocfs_register(LUSTRE_SEQ_NAME,
+ proc_lustre_root,
+ NULL, NULL);
+ if (IS_ERR(seq_type_proc_dir))
+ return PTR_ERR(seq_type_proc_dir);
+
+# ifdef HAVE_SERVER_SUPPORT
+ fid_server_mod_init();
+# endif
+
+ return 0;
+}
+
+static void __exit fid_mod_exit(void)
+{
+# ifdef HAVE_SERVER_SUPPORT
+ fid_server_mod_exit();
+# endif
+
+ if (seq_type_proc_dir != NULL && !IS_ERR(seq_type_proc_dir)) {
+ lprocfs_remove(&seq_type_proc_dir);
+ seq_type_proc_dir = NULL;
+ }
+}
+
+MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Lustre FID Module");
+MODULE_VERSION(LUSTRE_VERSION_STRING);
+MODULE_LICENSE("GPL");
+
+module_init(fid_mod_init);
+module_exit(fid_mod_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff