-/* -*- 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) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDC
#ifdef __KERNEL__
# include <liblustre.h>
#endif
-#include <linux/lustre_acl.h>
+#include <lustre_acl.h>
#include <obd_class.h>
#include <lustre_dlm.h>
#include <lustre_fid.h>
#include <lprocfs_status.h>
#include <lustre_param.h>
#include "mdc_internal.h"
-
-static quota_interface_t *quota_interface;
+#include <lustre/lustre_idl.h>
#define REQUEST_MINOR 244
-static quota_interface_t *quota_interface;
-extern quota_interface_t mdc_quota_interface;
+struct mdc_renew_capa_args {
+ struct obd_capa *ra_oc;
+ renew_capa_cb_t ra_cb;
+};
static int mdc_cleanup(struct obd_device *obd);
-static struct obd_capa *mdc_unpack_capa(struct ptlrpc_request *req,
- const struct req_msg_field *field)
+int mdc_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req,
+ const struct req_msg_field *field, struct obd_capa **oc)
{
struct lustre_capa *capa;
- struct obd_capa *oc;
+ struct obd_capa *c;
+ ENTRY;
/* swabbed already in mdc_enqueue */
capa = req_capsule_server_get(&req->rq_pill, field);
if (capa == NULL)
- return ERR_PTR(-EPROTO);
+ RETURN(-EPROTO);
- oc = alloc_capa(CAPA_SITE_CLIENT);
- if (!oc) {
+ c = alloc_capa(CAPA_SITE_CLIENT);
+ if (IS_ERR(c)) {
CDEBUG(D_INFO, "alloc capa failed!\n");
- return ERR_PTR(-ENOMEM);
+ RETURN(PTR_ERR(c));
+ } else {
+ c->c_capa = *capa;
+ *oc = c;
+ RETURN(0);
}
- oc->c_capa = *capa;
-
- return oc;
}
/* Helper that implements most of mdc_getstatus and signal_completed_replay. */
GOTO(out, rc = -EPROTO);
if (body->valid & OBD_MD_FLMDSCAPA) {
- struct obd_capa *oc;
-
- oc = mdc_unpack_capa(req, &RMF_CAPA1);
- if (IS_ERR(oc))
- GOTO(out, rc = PTR_ERR(oc));
- *pc = oc;
+ rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, pc);
+ if (rc)
+ GOTO(out, rc);
}
*rootfid = body->fid1;
CDEBUG(D_NET,
- "root fid="DFID", last_committed="LPU64", last_xid="LPU64"\n",
+ "root fid="DFID", last_committed="LPU64"\n",
PFID(rootfid),
- lustre_msg_get_last_committed(req->rq_repmsg),
- lustre_msg_get_last_xid(req->rq_repmsg));
+ lustre_msg_get_last_committed(req->rq_repmsg));
EXIT;
out:
ptlrpc_req_finished(req);
int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid,
struct obd_capa **pc)
{
- return send_getstatus(class_exp2cliimp(exp), rootfid, pc,
+ return send_getstatus(class_exp2cliimp(exp), rootfid, pc,
LUSTRE_IMP_FULL, 0);
}
* from server. Even for cases when acl_size and md_size is zero, RPC header
* will contain 4 fields and RPC itself will contain zero size fields. This is
* because mdt_getattr*() _always_ returns 4 fields, but if acl is not needed
- * and thus zero, it shirinks it, making zero size. The same story about
+ * and thus zero, it shrinks it, making zero size. The same story about
* md_size. And this is course of problem when client waits for smaller number
* of fields. This issue will be fixed later when client gets aware of RPC
* layouts. --umka
CDEBUG(D_NET, "mode: %o\n", body->mode);
if (body->eadatasize != 0) {
+ mdc_update_max_ea_from_body(exp, body);
+
eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
body->eadatasize);
if (eadata == NULL)
RETURN(-EPROTO);
}
- if (body->valid & OBD_MD_FLMODEASIZE) {
- struct client_obd *cli = &exp->exp_obd->u.cli;
-
- if (cli->cl_max_mds_easize < body->max_mdsize)
- cli->cl_max_mds_easize = body->max_mdsize;
- if (cli->cl_max_mds_cookiesize < body->max_cookiesize)
- cli->cl_max_mds_cookiesize = body->max_cookiesize;
- }
-
if (body->valid & OBD_MD_FLRMTPERM) {
struct mdt_remote_perm *perm;
RETURN(0);
}
-int mdc_getattr(struct obd_export *exp, const struct lu_fid *fid,
- struct obd_capa *oc, obd_valid valid, int ea_size,
+int mdc_getattr(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request)
{
struct ptlrpc_request *req;
if (req == NULL)
RETURN(-ENOMEM);
- mdc_set_capa_size(req, &RMF_CAPA1, oc);
+ mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
if (rc) {
RETURN(rc);
}
- /* MDS_BFLAG_EXT_FLAGS: request "new" flags(bug 9486) */
- mdc_pack_body(req, fid, oc, valid, ea_size, -1, MDS_BFLAG_EXT_FLAGS);
+ mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
+ op_data->op_valid, op_data->op_mode, -1, 0);
- req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, ea_size);
- if (valid & OBD_MD_FLRMTPERM) {
+ req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
+ op_data->op_mode);
+ if (op_data->op_valid & OBD_MD_FLRMTPERM) {
LASSERT(client_is_remote(exp));
req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
sizeof(struct mdt_remote_perm));
RETURN(rc);
}
-int mdc_getattr_name(struct obd_export *exp, const struct lu_fid *fid,
- struct obd_capa *oc, const char *filename, int namelen,
- obd_valid valid, int ea_size, __u32 suppgid,
+int mdc_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request)
{
struct ptlrpc_request *req;
if (req == NULL)
RETURN(-ENOMEM);
- mdc_set_capa_size(req, &RMF_CAPA1, oc);
- req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT, namelen);
+ mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
+ req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
+ op_data->op_namelen + 1);
rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR_NAME);
if (rc) {
RETURN(rc);
}
- /* MDS_BFLAG_EXT_FLAGS: request "new" flags(bug 9486) */
- mdc_pack_body(req, fid, oc, valid, ea_size, suppgid,
- MDS_BFLAG_EXT_FLAGS);
+ mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
+ op_data->op_valid, op_data->op_mode,
+ op_data->op_suppgids[0], 0);
- if (filename) {
+ if (op_data->op_name) {
char *name = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
- LASSERT(strnlen(filename, namelen) == namelen - 1);
- memcpy(name, filename, namelen);
+ LASSERT(strnlen(op_data->op_name, op_data->op_namelen) ==
+ op_data->op_namelen);
+ memcpy(name, op_data->op_name, op_data->op_namelen);
}
- req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, ea_size);
+ req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
+ op_data->op_mode);
ptlrpc_request_set_replen(req);
rc = mdc_getattr_common(exp, req);
sizeof(struct mdt_rec_reint));
rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
rec->sx_opcode = REINT_SETXATTR;
- /* TODO:
- * cfs_curproc_fs{u,g}id() should replace
+ /* TODO:
+ * cfs_curproc_fs{u,g}id() should replace
* current->fs{u,g}id for portability.
*/
- rec->sx_fsuid = current->fsuid;
- rec->sx_fsgid = current->fsgid;
- rec->sx_cap = current->cap_effective;
+ rec->sx_fsuid = cfs_curproc_fsuid();
+ rec->sx_fsgid = cfs_curproc_fsgid();
+ rec->sx_cap = cfs_curproc_cap_pack();
rec->sx_suppgid1 = suppgid;
rec->sx_suppgid2 = -1;
rec->sx_fid = *fid;
const char *input, int input_size, int output_size,
int flags, __u32 suppgid, struct ptlrpc_request **request)
{
- return mdc_xattr_common(exp, &RQF_MDS_REINT_SETXATTR,
+ return mdc_xattr_common(exp, &RQF_MDS_REINT_SETXATTR,
fid, oc, MDS_REINT, valid, xattr_name,
input, input_size, output_size, flags,
suppgid, request);
const char *input, int input_size, int output_size,
int flags, struct ptlrpc_request **request)
{
- return mdc_xattr_common(exp, &RQF_MDS_GETXATTR,
+ return mdc_xattr_common(exp, &RQF_MDS_GETXATTR,
fid, oc, MDS_GETXATTR, valid, xattr_name,
input, input_size, output_size, flags,
-1, request);
}
else if (md->body->valid & OBD_MD_FLACL) {
/* for ACL, it's possible that FLACL is set but aclsize is zero.
- * only when aclsize != 0 there's an actual segment for ACL
- * in reply buffer.
+ * only when aclsize != 0 there's an actual segment for ACL
+ * in reply buffer.
*/
if (md->body->aclsize) {
rc = mdc_unpack_acl(req, md);
}
}
if (md->body->valid & OBD_MD_FLMDSCAPA) {
- struct obd_capa *oc = mdc_unpack_capa(req, &RMF_CAPA1);
+ struct obd_capa *oc = NULL;
- if (IS_ERR(oc))
- GOTO(out, rc = PTR_ERR(oc));
+ rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, &oc);
+ if (rc)
+ GOTO(out, rc);
md->mds_capa = oc;
}
if (md->body->valid & OBD_MD_FLOSSCAPA) {
- struct obd_capa *oc = mdc_unpack_capa(req, &RMF_CAPA2);
+ struct obd_capa *oc = NULL;
- if (IS_ERR(oc))
- GOTO(out, rc = PTR_ERR(oc));
+ rc = mdc_unpack_capa(NULL, req, &RMF_CAPA2, &oc);
+ if (rc)
+ GOTO(out, rc);
md->oss_capa = oc;
}
EXIT;
out:
if (rc) {
- if (md->oss_capa)
- free_capa(md->oss_capa);
- if (md->mds_capa)
- free_capa(md->mds_capa);
+ if (md->oss_capa) {
+ capa_put(md->oss_capa);
+ md->oss_capa = NULL;
+ }
+ if (md->mds_capa) {
+ capa_put(md->mds_capa);
+ md->mds_capa = NULL;
+ }
#ifdef CONFIG_FS_POSIX_ACL
posix_acl_release(md->posix_acl);
#endif
RETURN(0);
}
-static void mdc_replay_open(struct ptlrpc_request *req)
+/**
+ * Handles both OPEN and SETATTR RPCs for OPEN-CLOSE and SETATTR-DONE_WRITING
+ * RPC chains.
+ */
+void mdc_replay_open(struct ptlrpc_request *req)
{
struct md_open_data *mod = req->rq_cb_data;
- struct ptlrpc_request *cur, *tmp;
+ struct ptlrpc_request *close_req;
struct obd_client_handle *och;
struct lustre_handle old;
struct mdt_body *body;
old = *file_fh;
*file_fh = body->handle;
}
- list_for_each_entry_safe(cur, tmp, &mod->mod_replay_list, rq_mod_list) {
- int opc = lustre_msg_get_opc(cur->rq_reqmsg);
- struct mdt_epoch *epoch = NULL;
+ close_req = mod->mod_close_req;
+ if (close_req != NULL) {
+ __u32 opc = lustre_msg_get_opc(close_req->rq_reqmsg);
+ struct mdt_ioepoch *epoch;
- if (opc == MDS_CLOSE || opc == MDS_DONE_WRITING) {
- epoch = req_capsule_client_get(&cur->rq_pill,
- &RMF_MDT_EPOCH);
- LASSERT(epoch);
- DEBUG_REQ(D_HA, cur, "updating %s body with new fh",
- opc == MDS_CLOSE ? "CLOSE" : "DONE_WRITING");
- } else if (opc == MDS_REINT) {
- struct mdt_rec_setattr *rec;
-
- /* Check this is REINT_SETATTR. */
- rec = req_capsule_client_get(&cur->rq_pill,
- &RMF_REC_REINT);
- LASSERT(rec && rec->sa_opcode == REINT_SETATTR);
-
- epoch = req_capsule_client_get(&cur->rq_pill,
+ LASSERT(opc == MDS_CLOSE || opc == MDS_DONE_WRITING);
+ epoch = req_capsule_client_get(&close_req->rq_pill,
&RMF_MDT_EPOCH);
- LASSERT(epoch);
- DEBUG_REQ(D_HA, cur, "updating REINT_SETATTR body "
- "with new fh");
- }
- if (epoch) {
- if (och != NULL)
- LASSERT(!memcmp(&old, &epoch->handle,
- sizeof(old)));
- epoch->handle = body->handle;
- }
+ LASSERT(epoch);
+
+ if (och != NULL)
+ LASSERT(!memcmp(&old, &epoch->handle, sizeof(old)));
+ DEBUG_REQ(D_HA, close_req, "updating close body with new fh");
+ epoch->handle = body->handle;
}
EXIT;
}
-void mdc_commit_delayed(struct ptlrpc_request *req)
+void mdc_commit_open(struct ptlrpc_request *req)
{
struct md_open_data *mod = req->rq_cb_data;
- struct ptlrpc_request *cur, *tmp;
-
- DEBUG_REQ(D_HA, req, "req committed");
-
if (mod == NULL)
return;
- req->rq_cb_data = NULL;
- req->rq_commit_cb = NULL;
- list_del_init(&req->rq_mod_list);
- if (req->rq_sequence) {
- list_for_each_entry_safe(cur, tmp, &mod->mod_replay_list,
- rq_mod_list) {
- LASSERT(cur != LP_POISON);
- LASSERT(cur->rq_type != LI_POISON);
- DEBUG_REQ(D_HA, cur, "req balanced");
- LASSERT(cur->rq_transno != 0);
- LASSERT(cur->rq_import == req->rq_import);
-
- /* We no longer want to preserve this for transno-
- * unconditional replay. */
- spin_lock(&cur->rq_lock);
- cur->rq_replay = 0;
- spin_unlock(&cur->rq_lock);
- }
- }
-
- if (list_empty(&mod->mod_replay_list)) {
- if (mod->mod_och != NULL)
- mod->mod_och->och_mod = NULL;
+ /**
+ * No need to touch md_open_data::mod_och, it holds a reference on
+ * \var mod and will zero references to each other, \var mod will be
+ * freed after that when md_open_data::mod_och will put the reference.
+ */
- OBD_FREE_PTR(mod);
- }
+ /**
+ * Do not let open request to disappear as it still may be needed
+ * for close rpc to happen (it may happen on evict only, otherwise
+ * ptlrpc_request::rq_replay does not let mdc_commit_open() to be
+ * called), just mark this rpc as committed to distinguish these 2
+ * cases, see mdc_close() for details. The open request reference will
+ * be put along with freeing \var mod.
+ */
+ ptlrpc_request_addref(req);
+ cfs_spin_lock(&req->rq_lock);
+ req->rq_committed = 1;
+ cfs_spin_unlock(&req->rq_lock);
+ req->rq_cb_data = NULL;
+ obd_mod_put(mod);
}
int mdc_set_open_replay_data(struct obd_export *exp,
/* Only if the import is replayable, we set replay_open data */
if (och && imp->imp_replayable) {
- OBD_ALLOC_PTR(mod);
+ mod = obd_mod_alloc();
if (mod == NULL) {
DEBUG_REQ(D_ERROR, open_req,
"Can't allocate md_open_data");
RETURN(0);
}
- CFS_INIT_LIST_HEAD(&mod->mod_replay_list);
- spin_lock(&open_req->rq_lock);
+ /**
+ * Take a reference on \var mod, to be freed on mdc_close().
+ * It protects \var mod from being freed on eviction (commit
+ * callback is called despite rq_replay flag).
+ * Another reference for \var och.
+ */
+ obd_mod_get(mod);
+ obd_mod_get(mod);
+
+ cfs_spin_lock(&open_req->rq_lock);
och->och_mod = mod;
mod->mod_och = och;
+ mod->mod_open_req = open_req;
open_req->rq_cb_data = mod;
- list_add_tail(&open_req->rq_mod_list, &mod->mod_replay_list);
- open_req->rq_commit_cb = mdc_commit_delayed;
- spin_unlock(&open_req->rq_lock);
+ open_req->rq_commit_cb = mdc_commit_open;
+ cfs_spin_unlock(&open_req->rq_lock);
}
rec->cr_fid2 = body->fid1;
struct md_open_data *mod = och->och_mod;
ENTRY;
- /*
- * Don't free the structure now (it happens in mdc_commit_delayed(),
- * after the last request is removed from its replay list),
- * but make sure that replay doesn't poke at the och, which is about to
- * be freed.
- */
+ /**
+ * It is possible to not have \var mod in a case of eviction between
+ * lookup and ll_file_open().
+ **/
+ if (mod == NULL)
+ RETURN(0);
+
LASSERT(mod != LP_POISON);
- if (mod != NULL)
- mod->mod_och = NULL;
+ mod->mod_och = NULL;
och->och_mod = NULL;
+ obd_mod_put(mod);
+
RETURN(0);
}
+/* Prepares the request for the replay by the given reply */
+static void mdc_close_handle_reply(struct ptlrpc_request *req,
+ struct md_op_data *op_data, int rc) {
+ struct mdt_body *repbody;
+ struct mdt_ioepoch *epoch;
+
+ if (req && rc == -EAGAIN) {
+ repbody = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
+ epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
+
+ epoch->flags |= MF_SOM_AU;
+ if (repbody->valid & OBD_MD_FLGETATTRLOCK)
+ op_data->op_flags |= MF_GETATTR_LOCK;
+ }
+}
+
int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
struct md_open_data *mod, struct ptlrpc_request **request)
{
ptlrpc_at_set_req_timeout(req);
/* Ensure that this close's handle is fixed up during replay. */
- if (likely(mod != NULL))
- list_add_tail(&req->rq_mod_list, &mod->mod_replay_list);
- else
- CDEBUG(D_HA, "couldn't find open req; expecting close error\n");
+ if (likely(mod != NULL)) {
+ LASSERTF(mod->mod_open_req != NULL &&
+ mod->mod_open_req->rq_type != LI_POISON,
+ "POISONED open %p!\n", mod->mod_open_req);
+
+ mod->mod_close_req = req;
+
+ DEBUG_REQ(D_HA, mod->mod_open_req, "matched open");
+ /* We no longer want to preserve this open for replay even
+ * though the open was committed. b=3632, b=3633 */
+ cfs_spin_lock(&mod->mod_open_req->rq_lock);
+ mod->mod_open_req->rq_replay = 0;
+ cfs_spin_unlock(&mod->mod_open_req->rq_lock);
+ } else {
+ CDEBUG(D_HA, "couldn't find open req; expecting close error\n");
+ }
mdc_close_pack(req, op_data);
ptlrpc_request_set_replen(req);
- req->rq_commit_cb = mdc_commit_delayed;
- req->rq_replay = 1;
- LASSERT(req->rq_cb_data == NULL);
- req->rq_cb_data = mod;
-
mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
rc = ptlrpc_queue_wait(req);
mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
"= %d", rc);
if (rc > 0)
rc = -rc;
- } else if (mod == NULL) {
- if (req->rq_import->imp_replayable)
- CERROR("Unexpected: can't find md_open_data,"
- "but close succeeded with replayable imp"
- "Please tell "
- "http://bugzilla.lustre.org/\n");
}
-
body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
if (body == NULL)
rc = -EPROTO;
+ } else if (rc == -ESTALE) {
+ /**
+ * it can be allowed error after 3633 if open was committed and
+ * server failed before close was sent. Let's check if mod
+ * exists and return no error in that case
+ */
+ if (mod) {
+ DEBUG_REQ(D_HA, req, "Reset ESTALE = %d", rc);
+ LASSERT(mod->mod_open_req != NULL);
+ if (mod->mod_open_req->rq_committed)
+ rc = 0;
+ }
}
- EXIT;
- if (rc != 0 && rc != -EAGAIN && req && req->rq_commit_cb)
- req->rq_commit_cb(req);
-
+ if (mod) {
+ if (rc != 0)
+ mod->mod_close_req = NULL;
+ /* Since now, mod is accessed through open_req only,
+ * thus close req does not keep a reference on mod anymore. */
+ obd_mod_put(mod);
+ }
*request = req;
- return rc;
+ mdc_close_handle_reply(req, op_data, rc);
+ RETURN(rc);
}
int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
RETURN(rc);
}
- /* XXX: add DONE_WRITING request to och -- when Size-on-MDS
- * recovery will be ready. */
+ if (mod != NULL) {
+ LASSERTF(mod->mod_open_req != NULL &&
+ mod->mod_open_req->rq_type != LI_POISON,
+ "POISONED setattr %p!\n", mod->mod_open_req);
+
+ mod->mod_close_req = req;
+ DEBUG_REQ(D_HA, mod->mod_open_req, "matched setattr");
+ /* We no longer want to preserve this setattr for replay even
+ * though the open was committed. b=3632, b=3633 */
+ cfs_spin_lock(&mod->mod_open_req->rq_lock);
+ mod->mod_open_req->rq_replay = 0;
+ cfs_spin_unlock(&mod->mod_open_req->rq_lock);
+ }
+
mdc_close_pack(req, op_data);
ptlrpc_request_set_replen(req);
- req->rq_replay = 1;
- req->rq_cb_data = mod;
- req->rq_commit_cb = mdc_commit_delayed;
- if (likely(mod != NULL))
- list_add_tail(&req->rq_mod_list, &mod->mod_replay_list);
- else
- CDEBUG(D_HA, "couldn't find open req; expecting close error\n");
mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
rc = ptlrpc_queue_wait(req);
mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
- /* Close the open replay sequence if an error occured or no SOM
- * attribute update is needed. */
- if (rc != -EAGAIN)
- ptlrpc_close_replay_seq(req);
-
- if (rc && rc != -EAGAIN && req->rq_commit_cb)
- req->rq_commit_cb(req);
+ if (rc == -ESTALE) {
+ /**
+ * it can be allowed error after 3633 if open or setattr were
+ * committed and server failed before close was sent.
+ * Let's check if mod exists and return no error in that case
+ */
+ if (mod) {
+ LASSERT(mod->mod_open_req != NULL);
+ if (mod->mod_open_req->rq_committed)
+ rc = 0;
+ }
+ }
+ if (mod) {
+ if (rc != 0)
+ mod->mod_close_req = NULL;
+ /* Since now, mod is accessed through setattr req only,
+ * thus DW req does not keep a reference on mod anymore. */
+ obd_mod_put(mod);
+ }
+
+ mdc_close_handle_reply(req, op_data, rc);
ptlrpc_req_finished(req);
RETURN(rc);
}
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
- GOTO(out, rc);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = sptlrpc_cli_unwrap_bulk_write(req, req->rq_bulk);
out:
ptlrpc_req_finished(req);
return rc;
EXPORT_SYMBOL(mdc_sendpage);
#endif
-int mdc_readpage(struct obd_export *exp, const struct lu_fid *fid,
- struct obd_capa *oc, __u64 offset, struct page *page,
- struct ptlrpc_request **request)
+int mdc_readpage(struct obd_export *exp, struct md_op_data *op_data,
+ struct page **pages, struct ptlrpc_request **request)
{
struct ptlrpc_request *req;
struct ptlrpc_bulk_desc *desc;
+ int i;
+ cfs_waitq_t waitq;
+ int resends = 0;
+ struct l_wait_info lwi;
int rc;
ENTRY;
*request = NULL;
+ cfs_waitq_init(&waitq);
+
+restart_bulk:
req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE);
if (req == NULL)
RETURN(-ENOMEM);
- mdc_set_capa_size(req, &RMF_CAPA1, oc);
+ mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE);
if (rc) {
req->rq_request_portal = MDS_READPAGE_PORTAL;
ptlrpc_at_set_req_timeout(req);
- desc = ptlrpc_prep_bulk_imp(req, 1, BULK_PUT_SINK, MDS_BULK_PORTAL);
+ desc = ptlrpc_prep_bulk_imp(req, op_data->op_npages, BULK_PUT_SINK,
+ MDS_BULK_PORTAL);
if (desc == NULL) {
ptlrpc_request_free(req);
RETURN(-ENOMEM);
}
/* NB req now owns desc and will free it when it gets freed */
- ptlrpc_prep_bulk_page(desc, page, 0, CFS_PAGE_SIZE);
- mdc_readdir_pack(req, offset, CFS_PAGE_SIZE, fid, oc);
+ for (i = 0; i < op_data->op_npages; i++)
+ ptlrpc_prep_bulk_page(desc, pages[i], 0, CFS_PAGE_SIZE);
+
+ mdc_readdir_pack(req, op_data->op_offset,
+ CFS_PAGE_SIZE * op_data->op_npages,
+ &op_data->op_fid1, op_data->op_capa1);
ptlrpc_request_set_replen(req);
rc = ptlrpc_queue_wait(req);
if (rc) {
ptlrpc_req_finished(req);
+ if (rc != -ETIMEDOUT)
+ RETURN(rc);
+
+ resends++;
+ if (!client_should_resend(resends, &exp->exp_obd->u.cli)) {
+ CERROR("too many resend retries, returning error\n");
+ RETURN(-EIO);
+ }
+ lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(resends), NULL, NULL, NULL);
+ l_wait_event(waitq, 0, &lwi);
+
+ goto restart_bulk;
+ }
+
+ rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk,
+ req->rq_bulk->bd_nob_transferred);
+ if (rc < 0) {
+ ptlrpc_req_finished(req);
RETURN(rc);
}
- if (req->rq_bulk->bd_nob_transferred != CFS_PAGE_SIZE) {
+ if (req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK) {
CERROR("Unexpected # bytes transferred: %d (%ld expected)\n",
- req->rq_bulk->bd_nob_transferred, CFS_PAGE_SIZE);
+ req->rq_bulk->bd_nob_transferred,
+ CFS_PAGE_SIZE * op_data->op_npages);
ptlrpc_req_finished(req);
RETURN(-EPROTO);
}
RETURN(0);
}
+static int mdc_statfs(const struct lu_env *env,
+ struct obd_export *exp, struct obd_statfs *osfs,
+ __u64 max_age, __u32 flags)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct ptlrpc_request *req;
+ struct obd_statfs *msfs;
+ struct obd_import *imp = NULL;
+ int rc;
+ ENTRY;
+
+ /*
+ * Since the request might also come from lprocfs, so we need
+ * sync this with client_disconnect_export Bug15684
+ */
+ cfs_down_read(&obd->u.cli.cl_sem);
+ if (obd->u.cli.cl_import)
+ imp = class_import_get(obd->u.cli.cl_import);
+ cfs_up_read(&obd->u.cli.cl_sem);
+ if (!imp)
+ RETURN(-ENODEV);
+
+ req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_STATFS,
+ LUSTRE_MDS_VERSION, MDS_STATFS);
+ if (req == NULL)
+ GOTO(output, rc = -ENOMEM);
+
+ ptlrpc_request_set_replen(req);
+
+ if (flags & OBD_STATFS_NODELAY) {
+ /* procfs requests not want stay in wait for avoid deadlock */
+ req->rq_no_resend = 1;
+ req->rq_no_delay = 1;
+ }
+
+ rc = ptlrpc_queue_wait(req);
+ if (rc) {
+ /* check connection error first */
+ if (imp->imp_connect_error)
+ rc = imp->imp_connect_error;
+ GOTO(out, rc);
+ }
+
+ msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
+ if (msfs == NULL)
+ GOTO(out, rc = -EPROTO);
+
+ *osfs = *msfs;
+ EXIT;
+out:
+ ptlrpc_req_finished(req);
+output:
+ class_import_put(imp);
+ return rc;
+}
+
+static int mdc_ioc_fid2path(struct obd_export *exp, struct getinfo_fid2path *gf)
+{
+ __u32 keylen, vallen;
+ void *key;
+ int rc;
+
+ if (gf->gf_pathlen > PATH_MAX)
+ RETURN(-ENAMETOOLONG);
+ if (gf->gf_pathlen < 2)
+ RETURN(-EOVERFLOW);
+
+ /* Key is KEY_FID2PATH + getinfo_fid2path description */
+ keylen = cfs_size_round(sizeof(KEY_FID2PATH)) + sizeof(*gf);
+ OBD_ALLOC(key, keylen);
+ if (key == NULL)
+ RETURN(-ENOMEM);
+ memcpy(key, KEY_FID2PATH, sizeof(KEY_FID2PATH));
+ memcpy(key + cfs_size_round(sizeof(KEY_FID2PATH)), gf, sizeof(*gf));
+
+ CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n",
+ PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno);
+
+ if (!fid_is_sane(&gf->gf_fid))
+ GOTO(out, rc = -EINVAL);
+
+ /* Val is struct getinfo_fid2path result plus path */
+ vallen = sizeof(*gf) + gf->gf_pathlen;
+
+ rc = obd_get_info(NULL, exp, keylen, key, &vallen, gf, NULL);
+ if (rc)
+ GOTO(out, rc);
+
+ if (vallen <= sizeof(*gf))
+ GOTO(out, rc = -EPROTO);
+ else if (vallen > sizeof(*gf) + gf->gf_pathlen)
+ GOTO(out, rc = -EOVERFLOW);
+
+ CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n%s\n",
+ PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno, gf->gf_path);
+
+out:
+ OBD_FREE(key, keylen);
+ return rc;
+}
+
+static struct kuc_hdr *changelog_kuc_hdr(char *buf, int len, int flags)
+{
+ struct kuc_hdr *lh = (struct kuc_hdr *)buf;
+
+ LASSERT(len <= CR_MAXSIZE);
+
+ lh->kuc_magic = KUC_MAGIC;
+ lh->kuc_transport = KUC_TRANSPORT_CHANGELOG;
+ lh->kuc_flags = flags;
+ lh->kuc_msgtype = CL_RECORD;
+ lh->kuc_msglen = len;
+ return lh;
+}
+
+#define D_CHANGELOG 0
+
+struct changelog_show {
+ __u64 cs_startrec;
+ __u32 cs_flags;
+ cfs_file_t *cs_fp;
+ char *cs_buf;
+ struct obd_device *cs_obd;
+};
+
+static int changelog_show_cb(struct llog_handle *llh, struct llog_rec_hdr *hdr,
+ void *data)
+{
+ struct changelog_show *cs = data;
+ struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
+ struct kuc_hdr *lh;
+ int len, rc;
+ ENTRY;
+
+ if ((rec->cr_hdr.lrh_type != CHANGELOG_REC) ||
+ (rec->cr.cr_type >= CL_LAST)) {
+ CERROR("Not a changelog rec %d/%d\n", rec->cr_hdr.lrh_type,
+ rec->cr.cr_type);
+ RETURN(-EINVAL);
+ }
+
+ if (rec->cr.cr_index < cs->cs_startrec) {
+ /* Skip entries earlier than what we are interested in */
+ CDEBUG(D_CHANGELOG, "rec="LPU64" start="LPU64"\n",
+ rec->cr.cr_index, cs->cs_startrec);
+ RETURN(0);
+ }
+
+ CDEBUG(D_CHANGELOG, LPU64" %02d%-5s "LPU64" 0x%x t="DFID" p="DFID
+ " %.*s\n", rec->cr.cr_index, rec->cr.cr_type,
+ changelog_type2str(rec->cr.cr_type), rec->cr.cr_time,
+ rec->cr.cr_flags & CLF_FLAGMASK,
+ PFID(&rec->cr.cr_tfid), PFID(&rec->cr.cr_pfid),
+ rec->cr.cr_namelen, rec->cr.cr_name);
+
+ len = sizeof(*lh) + sizeof(rec->cr) + rec->cr.cr_namelen;
+
+ /* Set up the message */
+ lh = changelog_kuc_hdr(cs->cs_buf, len, cs->cs_flags);
+ memcpy(lh + 1, &rec->cr, len - sizeof(*lh));
+
+ rc = libcfs_kkuc_msg_put(cs->cs_fp, lh);
+ CDEBUG(D_CHANGELOG, "kucmsg fp %p len %d rc %d\n", cs->cs_fp, len,rc);
+
+ RETURN(rc);
+}
+
+static int mdc_changelog_send_thread(void *csdata)
+{
+ struct changelog_show *cs = csdata;
+ struct llog_ctxt *ctxt = NULL;
+ struct llog_handle *llh = NULL;
+ struct kuc_hdr *kuch;
+ int rc;
+
+ CDEBUG(D_CHANGELOG, "changelog to fp=%p start "LPU64"\n",
+ cs->cs_fp, cs->cs_startrec);
+
+ /*
+ * It's important to daemonize here to close unused FDs.
+ * The write fd from pipe is already opened by the caller,
+ * so it's fine to clear all files here
+ */
+ cfs_daemonize("mdc_clg_send_thread");
+
+ OBD_ALLOC(cs->cs_buf, CR_MAXSIZE);
+ if (cs->cs_buf == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ /* Set up the remote catalog handle */
+ ctxt = llog_get_context(cs->cs_obd, LLOG_CHANGELOG_REPL_CTXT);
+ if (ctxt == NULL)
+ GOTO(out, rc = -ENOENT);
+ rc = llog_create(ctxt, &llh, NULL, CHANGELOG_CATALOG);
+ if (rc) {
+ CERROR("llog_create() failed %d\n", rc);
+ GOTO(out, rc);
+ }
+ rc = llog_init_handle(llh, LLOG_F_IS_CAT, NULL);
+ if (rc) {
+ CERROR("llog_init_handle failed %d\n", rc);
+ GOTO(out, rc);
+ }
+
+ rc = llog_cat_process_flags(llh, changelog_show_cb, cs, 0, 0, 0);
+
+ /* Send EOF no matter what our result */
+ if ((kuch = changelog_kuc_hdr(cs->cs_buf, sizeof(*kuch),
+ cs->cs_flags))) {
+ kuch->kuc_msgtype = CL_EOF;
+ libcfs_kkuc_msg_put(cs->cs_fp, kuch);
+ }
+
+out:
+ cfs_put_file(cs->cs_fp);
+ if (llh)
+ llog_cat_put(llh);
+ if (ctxt)
+ llog_ctxt_put(ctxt);
+ if (cs->cs_buf)
+ OBD_FREE(cs->cs_buf, CR_MAXSIZE);
+ OBD_FREE_PTR(cs);
+ /* detach from parent process so we get cleaned up */
+ cfs_daemonize("cl_send");
+ return rc;
+}
+
+static int mdc_ioc_changelog_send(struct obd_device *obd,
+ struct ioc_changelog *icc)
+{
+ struct changelog_show *cs;
+ int rc;
+
+ /* Freed in mdc_changelog_send_thread */
+ OBD_ALLOC_PTR(cs);
+ if (!cs)
+ return -ENOMEM;
+
+ cs->cs_obd = obd;
+ cs->cs_startrec = icc->icc_recno;
+ /* matching cfs_put_file in mdc_changelog_send_thread */
+ cs->cs_fp = cfs_get_fd(icc->icc_id);
+ cs->cs_flags = icc->icc_flags;
+
+ /* New thread because we should return to user app before
+ writing into our pipe */
+ rc = cfs_create_thread(mdc_changelog_send_thread, cs, CFS_DAEMON_FLAGS);
+ if (rc >= 0) {
+ CDEBUG(D_CHANGELOG, "start changelog thread: %d\n", rc);
+ return 0;
+ }
+
+ CERROR("Failed to start changelog thread: %d\n", rc);
+ OBD_FREE_PTR(cs);
+ return rc;
+}
+
+static int mdc_ioc_hsm_ct_start(struct obd_export *exp,
+ struct lustre_kernelcomm *lk);
+
+static int mdc_quotacheck(struct obd_device *unused, struct obd_export *exp,
+ struct obd_quotactl *oqctl)
+{
+ struct client_obd *cli = &exp->exp_obd->u.cli;
+ struct ptlrpc_request *req;
+ struct obd_quotactl *body;
+ int rc;
+ ENTRY;
+
+ req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
+ &RQF_MDS_QUOTACHECK, LUSTRE_MDS_VERSION,
+ MDS_QUOTACHECK);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
+ *body = *oqctl;
+
+ ptlrpc_request_set_replen(req);
+
+ /* the next poll will find -ENODATA, that means quotacheck is
+ * going on */
+ cli->cl_qchk_stat = -ENODATA;
+ rc = ptlrpc_queue_wait(req);
+ if (rc)
+ cli->cl_qchk_stat = rc;
+ ptlrpc_req_finished(req);
+ RETURN(rc);
+}
+
+static int mdc_quota_poll_check(struct obd_export *exp,
+ struct if_quotacheck *qchk)
+{
+ struct client_obd *cli = &exp->exp_obd->u.cli;
+ int rc;
+ ENTRY;
+
+ qchk->obd_uuid = cli->cl_target_uuid;
+ memcpy(qchk->obd_type, LUSTRE_MDS_NAME, strlen(LUSTRE_MDS_NAME));
+
+ rc = cli->cl_qchk_stat;
+ /* the client is not the previous one */
+ if (rc == CL_NOT_QUOTACHECKED)
+ rc = -EINTR;
+ RETURN(rc);
+}
+
+static int mdc_quotactl(struct obd_device *unused, struct obd_export *exp,
+ struct obd_quotactl *oqctl)
+{
+ struct ptlrpc_request *req;
+ struct obd_quotactl *oqc;
+ int rc;
+ ENTRY;
+
+ req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
+ &RQF_MDS_QUOTACTL, LUSTRE_MDS_VERSION,
+ MDS_QUOTACTL);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
+ *oqc = *oqctl;
+
+ ptlrpc_request_set_replen(req);
+ ptlrpc_at_set_req_timeout(req);
+ req->rq_no_resend = 1;
+
+ rc = ptlrpc_queue_wait(req);
+ if (rc)
+ CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
+
+ if (req->rq_repmsg &&
+ (oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL))) {
+ *oqctl = *oqc;
+ } else if (!rc) {
+ CERROR ("Can't unpack obd_quotactl\n");
+ rc = -EPROTO;
+ }
+ ptlrpc_req_finished(req);
+
+ RETURN(rc);
+}
+
static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
void *karg, void *uarg)
{
int rc;
ENTRY;
- if (!try_module_get(THIS_MODULE)) {
+ if (!cfs_try_module_get(THIS_MODULE)) {
CERROR("Can't get module. Is it alive?");
return -EINVAL;
}
switch (cmd) {
+ case LL_IOC_HSM_CT_START:
+ rc = mdc_ioc_hsm_ct_start(exp, karg);
+ GOTO(out, rc);
+ case OBD_IOC_CHANGELOG_SEND:
+ rc = mdc_ioc_changelog_send(obd, karg);
+ GOTO(out, rc);
+ case OBD_IOC_CHANGELOG_CLEAR: {
+ struct ioc_changelog *icc = karg;
+ struct changelog_setinfo cs =
+ {.cs_recno = icc->icc_recno, .cs_id = icc->icc_id};
+ rc = obd_set_info_async(NULL, exp, strlen(KEY_CHANGELOG_CLEAR),
+ KEY_CHANGELOG_CLEAR, sizeof(cs), &cs,
+ NULL);
+ GOTO(out, rc);
+ }
+ case OBD_IOC_FID2PATH: {
+ rc = mdc_ioc_fid2path(exp, karg);
+ GOTO(out, rc);
+ }
case OBD_IOC_CLIENT_RECOVER:
- rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1);
+ rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1, 0);
if (rc < 0)
GOTO(out, rc);
GOTO(out, rc = 0);
}
#endif
case OBD_IOC_POLL_QUOTACHECK:
- rc = lquota_poll_check(quota_interface, exp,
- (struct if_quotacheck *)karg);
+ rc = mdc_quota_poll_check(exp, (struct if_quotacheck *)karg);
+ GOTO(out, rc);
+ case OBD_IOC_PING_TARGET:
+ rc = ptlrpc_obd_ping(obd);
GOTO(out, rc);
+ /*
+ * Normally IOC_OBD_STATFS, OBD_IOC_QUOTACTL iocontrol are handled by
+ * LMV instead of MDC. But when the cluster is upgraded from 1.8,
+ * there'd be no LMV layer thus we might be called here. Eventually
+ * this code should be removed.
+ * bz20731, LU-592.
+ */
+ case IOC_OBD_STATFS: {
+ struct obd_statfs stat_buf = {0};
+
+ if (*((__u32 *) data->ioc_inlbuf2) != 0)
+ GOTO(out, rc = -ENODEV);
+
+ /* copy UUID */
+ if (cfs_copy_to_user(data->ioc_pbuf2, obd2cli_tgt(obd),
+ min((int) data->ioc_plen2,
+ (int) sizeof(struct obd_uuid))))
+ GOTO(out, rc = -EFAULT);
+
+ rc = mdc_statfs(NULL, obd->obd_self_export, &stat_buf,
+ cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+ 0);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ if (cfs_copy_to_user(data->ioc_pbuf1, &stat_buf,
+ min((int) data->ioc_plen1,
+ (int) sizeof(stat_buf))))
+ GOTO(out, rc = -EFAULT);
+
+ GOTO(out, rc = 0);
+ }
+ case OBD_IOC_QUOTACTL: {
+ struct if_quotactl *qctl = karg;
+ struct obd_quotactl *oqctl;
+
+ OBD_ALLOC_PTR(oqctl);
+ if (!oqctl)
+ RETURN(-ENOMEM);
+
+ QCTL_COPY(oqctl, qctl);
+ rc = obd_quotactl(exp, oqctl);
+ if (rc == 0) {
+ QCTL_COPY(qctl, oqctl);
+ qctl->qc_valid = QC_MDTIDX;
+ qctl->obd_uuid = obd->u.cli.cl_target_uuid;
+ }
+ OBD_FREE_PTR(oqctl);
+ break;
+ }
+ case LL_IOC_GET_CONNECT_FLAGS: {
+ if (cfs_copy_to_user(uarg, &exp->exp_connect_flags,
+ sizeof(__u64)))
+ GOTO(out, rc = -EFAULT);
+ else
+ GOTO(out, rc = 0);
+ }
default:
CERROR("mdc_ioctl(): unrecognised ioctl %#x\n", cmd);
GOTO(out, rc = -ENOTTY);
}
out:
- module_put(THIS_MODULE);
+ cfs_module_put(THIS_MODULE);
return rc;
}
-static int do_set_info_async(struct obd_export *exp,
- obd_count keylen, void *key,
- obd_count vallen, void *val,
- struct ptlrpc_request_set *set)
+int mdc_get_info_rpc(struct obd_export *exp,
+ obd_count keylen, void *key,
+ int vallen, void *val)
{
- struct obd_import *imp = class_exp2cliimp(exp);
- struct ptlrpc_request *req;
- char *tmp;
- int rc;
+ struct obd_import *imp = class_exp2cliimp(exp);
+ struct ptlrpc_request *req;
+ char *tmp;
+ int rc = -EINVAL;
ENTRY;
- if (vallen != sizeof(int))
- RETURN(-EINVAL);
-
- spin_lock(&imp->imp_lock);
- if (*((int *)val)) {
- imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY;
- imp->imp_connect_data.ocd_connect_flags |= OBD_CONNECT_RDONLY;
- } else {
- imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY;
- imp->imp_connect_data.ocd_connect_flags &= ~OBD_CONNECT_RDONLY;
- }
- spin_unlock(&imp->imp_lock);
-
- req = ptlrpc_request_alloc(imp, &RQF_MDS_SET_INFO);
+ req = ptlrpc_request_alloc(imp, &RQF_MDS_GET_INFO);
if (req == NULL)
RETURN(-ENOMEM);
- req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
+ req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_KEY,
RCL_CLIENT, keylen);
- req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_VAL,
- RCL_CLIENT, vallen);
- rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SET_INFO);
+ req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VALLEN,
+ RCL_CLIENT, sizeof(__u32));
+
+ rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GET_INFO);
if (rc) {
ptlrpc_request_free(req);
RETURN(rc);
}
- tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
+ tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_KEY);
memcpy(tmp, key, keylen);
- tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_VAL);
- memcpy(tmp, val, vallen);
+ tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_VALLEN);
+ memcpy(tmp, &vallen, sizeof(__u32));
+ req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VAL,
+ RCL_SERVER, vallen);
ptlrpc_request_set_replen(req);
- if (set) {
- ptlrpc_set_add_req(set, req);
- ptlrpc_check_set(set);
- } else {
- rc = ptlrpc_queue_wait(req);
- ptlrpc_req_finished(req);
+ rc = ptlrpc_queue_wait(req);
+ if (rc == 0) {
+ tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL);
+ memcpy(val, tmp, vallen);
+ if (ptlrpc_rep_need_swab(req)) {
+ if (KEY_IS(KEY_FID2PATH)) {
+ lustre_swab_fid2path(val);
+ }
+ }
}
+ ptlrpc_req_finished(req);
RETURN(rc);
}
-int mdc_set_info_async(struct obd_export *exp,
+static void lustre_swab_hai(struct hsm_action_item *h)
+{
+ __swab32s(&h->hai_len);
+ __swab32s(&h->hai_action);
+ lustre_swab_lu_fid(&h->hai_fid);
+ __swab64s(&h->hai_cookie);
+ __swab64s(&h->hai_extent.offset);
+ __swab64s(&h->hai_extent.length);
+ __swab64s(&h->hai_gid);
+}
+
+static void lustre_swab_hal(struct hsm_action_list *h)
+{
+ struct hsm_action_item *hai;
+ int i;
+
+ __swab32s(&h->hal_version);
+ __swab32s(&h->hal_count);
+ __swab32s(&h->hal_archive_num);
+ hai = hai_zero(h);
+ for (i = 0; i < h->hal_count; i++) {
+ lustre_swab_hai(hai);
+ hai = hai_next(hai);
+ }
+}
+
+static void lustre_swab_kuch(struct kuc_hdr *l)
+{
+ __swab16s(&l->kuc_magic);
+ /* __u8 l->kuc_transport */
+ __swab16s(&l->kuc_msgtype);
+ __swab16s(&l->kuc_msglen);
+}
+
+static int mdc_ioc_hsm_ct_start(struct obd_export *exp,
+ struct lustre_kernelcomm *lk)
+{
+ int rc = 0;
+
+ if (lk->lk_group != KUC_GRP_HSM) {
+ CERROR("Bad copytool group %d\n", lk->lk_group);
+ return -EINVAL;
+ }
+
+ CDEBUG(D_HSM, "CT start r%d w%d u%d g%d f%#x\n", lk->lk_rfd, lk->lk_wfd,
+ lk->lk_uid, lk->lk_group, lk->lk_flags);
+
+ if (lk->lk_flags & LK_FLG_STOP)
+ rc = libcfs_kkuc_group_rem(lk->lk_uid,lk->lk_group);
+ else {
+ cfs_file_t *fp = cfs_get_fd(lk->lk_wfd);
+ rc = libcfs_kkuc_group_add(fp, lk->lk_uid,lk->lk_group,
+ lk->lk_data);
+ if (rc && fp)
+ cfs_put_file(fp);
+ }
+
+ /* lk_data is archive number mask */
+ /* TODO: register archive num with mdt so coordinator can choose
+ correct agent. */
+
+ return rc;
+}
+
+/**
+ * Send a message to any listening copytools
+ * @param val KUC message (kuc_hdr + hsm_action_list)
+ * @param len total length of message
+ */
+static int mdc_hsm_copytool_send(int len, void *val)
+{
+ struct kuc_hdr *lh = (struct kuc_hdr *)val;
+ struct hsm_action_list *hal = (struct hsm_action_list *)(lh + 1);
+ int rc;
+ ENTRY;
+
+ if (len < sizeof(*lh) + sizeof(*hal)) {
+ CERROR("Short HSM message %d < %d\n", len,
+ (int) (sizeof(*lh) + sizeof(*hal)));
+ RETURN(-EPROTO);
+ }
+ if (lh->kuc_magic == __swab16(KUC_MAGIC)) {
+ lustre_swab_kuch(lh);
+ lustre_swab_hal(hal);
+ } else if (lh->kuc_magic != KUC_MAGIC) {
+ CERROR("Bad magic %x!=%x\n", lh->kuc_magic, KUC_MAGIC);
+ RETURN(-EPROTO);
+ }
+
+ CDEBUG(D_HSM, " Received message mg=%x t=%d m=%d l=%d actions=%d\n",
+ lh->kuc_magic, lh->kuc_transport, lh->kuc_msgtype,
+ lh->kuc_msglen, hal->hal_count);
+
+ /* Broadcast to HSM listeners */
+ rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
+
+ RETURN(rc);
+}
+
+int mdc_set_info_async(const struct lu_env *env,
+ struct obd_export *exp,
obd_count keylen, void *key,
obd_count vallen, void *val,
struct ptlrpc_request_set *set)
int rc = -EINVAL;
ENTRY;
- if (KEY_IS(KEY_INIT_RECOV)) {
+ if (KEY_IS(KEY_READ_ONLY)) {
if (vallen != sizeof(int))
RETURN(-EINVAL);
- spin_lock(&imp->imp_lock);
- imp->imp_initial_recov = *(int *)val;
- spin_unlock(&imp->imp_lock);
- CDEBUG(D_HA, "%s: set imp_initial_recov = %d\n",
- exp->exp_obd->obd_name, imp->imp_initial_recov);
- RETURN(0);
+
+ cfs_spin_lock(&imp->imp_lock);
+ if (*((int *)val)) {
+ imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY;
+ imp->imp_connect_data.ocd_connect_flags |= OBD_CONNECT_RDONLY;
+ } else {
+ imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY;
+ imp->imp_connect_data.ocd_connect_flags &= ~OBD_CONNECT_RDONLY;
+ }
+ cfs_spin_unlock(&imp->imp_lock);
+
+ rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION,
+ keylen, key, vallen, val, set);
+ RETURN(rc);
}
- /* Turn off initial_recov after we try all backup servers once */
- if (KEY_IS(KEY_INIT_RECOV_BACKUP)) {
- if (vallen != sizeof(int))
- RETURN(-EINVAL);
- spin_lock(&imp->imp_lock);
- imp->imp_initial_recov_bk = *(int *)val;
- if (imp->imp_initial_recov_bk)
- imp->imp_initial_recov = 1;
- spin_unlock(&imp->imp_lock);
- CDEBUG(D_HA, "%s: set imp_initial_recov_bk = %d\n",
- exp->exp_obd->obd_name, imp->imp_initial_recov_bk);
+ if (KEY_IS(KEY_SPTLRPC_CONF)) {
+ sptlrpc_conf_client_adapt(exp->exp_obd);
RETURN(0);
}
- if (KEY_IS(KEY_READ_ONLY)) {
- rc = do_set_info_async(exp, keylen, key, vallen, val, set);
- RETURN(rc);
- }
if (KEY_IS(KEY_FLUSH_CTX)) {
sptlrpc_import_flush_my_ctx(imp);
RETURN(0);
}
if (KEY_IS(KEY_MDS_CONN)) {
- struct obd_import *imp = class_exp2cliimp(exp);
-
/* mds-mds import */
- spin_lock(&imp->imp_lock);
+ cfs_spin_lock(&imp->imp_lock);
imp->imp_server_timeout = 1;
- spin_unlock(&imp->imp_lock);
+ cfs_spin_unlock(&imp->imp_lock);
imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
- CDEBUG(D_OTHER|D_WARNING, "%s: timeout / 2\n", exp->exp_obd->obd_name);
+ CDEBUG(D_OTHER, "%s: timeout / 2\n", exp->exp_obd->obd_name);
RETURN(0);
}
+ if (KEY_IS(KEY_CHANGELOG_CLEAR)) {
+ rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION,
+ keylen, key, vallen, val, set);
+ RETURN(rc);
+ }
+ if (KEY_IS(KEY_HSM_COPYTOOL_SEND)) {
+ rc = mdc_hsm_copytool_send(vallen, val);
+ RETURN(rc);
+ }
RETURN(rc);
}
-int mdc_get_info(struct obd_export *exp, __u32 keylen, void *key,
- __u32 *vallen, void *val, struct lov_stripe_md *lsm)
+int mdc_get_info(const struct lu_env *env, struct obd_export *exp,
+ __u32 keylen, void *key, __u32 *vallen, void *val,
+ struct lov_stripe_md *lsm)
{
int rc = -EINVAL;
max_easize = val;
*max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
RETURN(0);
- }
- if (KEY_IS(KEY_CONN_DATA)) {
+ } else if (KEY_IS(KEY_CONN_DATA)) {
struct obd_import *imp = class_exp2cliimp(exp);
struct obd_connect_data *data = val;
*data = imp->imp_connect_data;
RETURN(0);
- }
-
- RETURN(rc);
-}
-
-static int mdc_statfs(struct obd_device *obd, struct obd_statfs *osfs,
- __u64 max_age, __u32 flags)
-{
- struct ptlrpc_request *req;
- struct obd_statfs *msfs;
- struct obd_import *imp = NULL;
- int rc;
- ENTRY;
-
-
- /*Since the request might also come from lprocfs, so we need
- *sync this with client_disconnect_export Bug15684*/
- down_read(&obd->u.cli.cl_sem);
- if (obd->u.cli.cl_import)
- imp = class_import_get(obd->u.cli.cl_import);
- up_read(&obd->u.cli.cl_sem);
- if (!imp)
- RETURN(-ENODEV);
-
- req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_STATFS,
- LUSTRE_MDS_VERSION, MDS_STATFS);
- if (req == NULL)
- GOTO(output, rc = -ENOMEM);
-
- ptlrpc_request_set_replen(req);
-
- if (flags & OBD_STATFS_NODELAY) {
- /* procfs requests not want stay in wait for avoid deadlock */
- req->rq_no_resend = 1;
- req->rq_no_delay = 1;
- }
-
- rc = ptlrpc_queue_wait(req);
- if (rc) {
- /* check connection error first */
- if (imp->imp_connect_error)
- rc = imp->imp_connect_error;
- GOTO(out, rc);
+ } else if (KEY_IS(KEY_TGT_COUNT)) {
+ *((int *)val) = 1;
+ RETURN(0);
}
- msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
- if (msfs == NULL)
- GOTO(out, rc = -EPROTO);
+ rc = mdc_get_info_rpc(exp, keylen, key, *vallen, val);
- *osfs = *msfs;
- EXIT;
-out:
- ptlrpc_req_finished(req);
-output:
- class_import_put(imp);
- return rc;
+ RETURN(rc);
}
static int mdc_pin(struct obd_export *exp, const struct lu_fid *fid,
handle->och_fh = body->handle;
handle->och_magic = OBD_CLIENT_HANDLE_MAGIC;
- OBD_ALLOC_PTR(handle->och_mod);
+ handle->och_mod = obd_mod_alloc();
if (handle->och_mod == NULL) {
- DEBUG_REQ(D_ERROR, req, "can't allocate mdc_open_data");
+ DEBUG_REQ(D_ERROR, req, "can't allocate md_open_data");
GOTO(err_out, rc = -ENOMEM);
}
- /* will be dropped by unpin */
- CFS_INIT_LIST_HEAD(&handle->och_mod->mod_replay_list);
- list_add_tail(&req->rq_mod_list, &handle->och_mod->mod_replay_list);
+ handle->och_mod->mod_open_req = req; /* will be dropped by unpin */
RETURN(0);
CERROR("Unpin failed: %d\n", rc);
ptlrpc_req_finished(req);
+ ptlrpc_req_finished(handle->och_mod->mod_open_req);
- LASSERT(!list_empty(&handle->och_mod->mod_replay_list));
- req = list_entry(handle->och_mod->mod_replay_list.next,
- typeof(*req), rq_mod_list);
- list_del_init(&req->rq_mod_list);
- ptlrpc_req_finished(req);
- LASSERT(list_empty(&handle->och_mod->mod_replay_list));
-
- OBD_FREE(handle->och_mod, sizeof(*handle->och_mod));
+ obd_mod_put(handle->och_mod);
RETURN(rc);
}
}
case IMP_EVENT_INACTIVE: {
struct client_obd *cli = &obd->u.cli;
- /*
+ /*
* Flush current sequence to make client obtain new one
* from server in case of disconnect/reconnect.
- * If range is already empty then no need to flush it.
*/
- if (cli->cl_seq != NULL &&
- !range_is_exhausted(&cli->cl_seq->lcs_space)) {
+ if (cli->cl_seq != NULL)
seq_client_flush(cli->cl_seq);
- }
rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL);
break;
case IMP_EVENT_OCD:
rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD, NULL);
break;
-
+ case IMP_EVENT_DEACTIVATE:
+ case IMP_EVENT_ACTIVATE:
+ break;
default:
CERROR("Unknown import event %x\n", event);
LBUG();
exp->exp_obd->obd_name);
/* Init client side sequence-manager */
- rc = seq_client_init(cli->cl_seq, exp,
+ rc = seq_client_init(cli->cl_seq, exp,
LUSTRE_SEQ_METADATA,
prefix, NULL);
OBD_FREE(prefix, MAX_OBD_NAME + 5);
OBD_FREE_PTR(cli->cl_seq);
cli->cl_seq = NULL;
}
-
+
RETURN(0);
}
struct client_obd *cli = &exp->exp_obd->u.cli;
struct lu_client_seq *seq = cli->cl_seq;
ENTRY;
- RETURN(seq_client_alloc_fid(seq, fid));
+ RETURN(seq_client_alloc_fid(NULL, seq, fid));
}
/* XXX This method is used only to clear current fid seq
static int mdc_fid_delete(struct obd_export *exp, const struct lu_fid *fid)
{
struct client_obd *cli = &exp->exp_obd->u.cli;
-
+
seq_client_flush(cli->cl_seq);
return 0;
}
+struct obd_uuid *mdc_get_uuid(struct obd_export *exp) {
+ struct client_obd *cli = &exp->exp_obd->u.cli;
+ return &cli->cl_target_uuid;
+}
+
+/**
+ * Determine whether the lock can be canceled before replaying it during
+ * recovery, non zero value will be return if the lock can be canceled,
+ * or zero returned for not
+ */
+static int mdc_cancel_for_recovery(struct ldlm_lock *lock)
+{
+ if (lock->l_resource->lr_type != LDLM_IBITS)
+ RETURN(0);
+
+ /* FIXME: if we ever get into a situation where there are too many
+ * opened files with open locks on a single node, then we really
+ * should replay these open locks to reget it */
+ if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN)
+ RETURN(0);
+
+ RETURN(1);
+}
+
static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg)
{
struct client_obd *cli = &obd->u.cli;
ptlrpcd_addref();
- OBD_ALLOC(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
- if (!cli->cl_setattr_lock)
- GOTO(err_rpc_lock, rc = -ENOMEM);
- mdc_init_rpc_lock(cli->cl_setattr_lock);
-
OBD_ALLOC(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
if (!cli->cl_close_lock)
- GOTO(err_setattr_lock, rc = -ENOMEM);
+ GOTO(err_rpc_lock, rc = -ENOMEM);
mdc_init_rpc_lock(cli->cl_close_lock);
rc = client_obd_setup(obd, cfg);
sptlrpc_lprocfs_cliobd_attach(obd);
ptlrpc_lprocfs_register_obd(obd);
- rc = obd_llog_init(obd, &obd->obd_olg, obd, 0, NULL, NULL);
+ ns_register_cancel(obd->obd_namespace, mdc_cancel_for_recovery);
+
+ rc = obd_llog_init(obd, &obd->obd_olg, obd, NULL);
if (rc) {
mdc_cleanup(obd);
CERROR("failed to setup llogging subsystems\n");
err_close_lock:
OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
-err_setattr_lock:
- OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
err_rpc_lock:
OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
ptlrpcd_decref();
switch (stage) {
case OBD_CLEANUP_EARLY:
+ break;
case OBD_CLEANUP_EXPORTS:
- /* If we set up but never connected, the
- client import will not have been cleaned. */
- if (obd->u.cli.cl_import) {
- struct obd_import *imp;
- imp = obd->u.cli.cl_import;
- CERROR("client import never connected\n");
- ptlrpc_invalidate_import(imp);
- ptlrpc_free_rq_pool(imp->imp_rq_pool);
- class_destroy_import(imp);
- obd->u.cli.cl_import = NULL;
- }
+ /* Failsafe, ok if racy */
+ if (obd->obd_type->typ_refcnt <= 1)
+ libcfs_kkuc_group_rem(0, KUC_GRP_HSM);
+
+ obd_cleanup_client_import(obd);
+ ptlrpc_lprocfs_unregister_obd(obd);
+ lprocfs_obd_cleanup(obd);
+
rc = obd_llog_finish(obd, 0);
if (rc != 0)
CERROR("failed to cleanup llogging subsystems\n");
struct client_obd *cli = &obd->u.cli;
OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
- OBD_FREE(cli->cl_setattr_lock, sizeof (*cli->cl_setattr_lock));
OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
- ptlrpc_lprocfs_unregister_obd(obd);
- lprocfs_obd_cleanup(obd);
ptlrpcd_decref();
return client_obd_cleanup(obd);
static int mdc_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
- struct obd_device *tgt, int count,
- struct llog_catid *logid, struct obd_uuid *uuid)
+ struct obd_device *tgt, int *index)
{
struct llog_ctxt *ctxt;
int rc;
LASSERT(olg == &obd->obd_olg);
- rc = llog_setup(obd, olg, LLOG_LOVEA_REPL_CTXT, tgt, 0,
- NULL, &llog_client_ops);
+ rc = llog_setup(obd, olg, LLOG_LOVEA_REPL_CTXT, tgt, 0, NULL,
+ &llog_client_ops);
+ if (rc)
+ RETURN(rc);
+
+ ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
+ llog_initiator_connect(ctxt);
+ llog_ctxt_put(ctxt);
+
+ rc = llog_setup(obd, olg, LLOG_CHANGELOG_REPL_CTXT, tgt, 0, NULL,
+ &llog_client_ops);
if (rc == 0) {
- ctxt = llog_get_context(obd, LLOG_LOVEA_REPL_CTXT);
+ ctxt = llog_group_get_ctxt(olg, LLOG_CHANGELOG_REPL_CTXT);
llog_initiator_connect(ctxt);
llog_ctxt_put(ctxt);
}
if (ctxt)
rc = llog_cleanup(ctxt);
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT);
+ if (ctxt)
+ rc = llog_cleanup(ctxt);
+
RETURN(rc);
}
int rc = 0;
lprocfs_mdc_init_vars(&lvars);
-
switch (lcfg->lcfg_command) {
- case LCFG_SPTLRPC_CONF:
- rc = sptlrpc_cliobd_process_config(obd, lcfg);
- break;
default:
rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars,
lcfg, obd);
+ if (rc > 0)
+ rc = 0;
break;
}
return(rc);
RETURN(rc);
}
-static int mdc_interpret_renew_capa(struct ptlrpc_request *req, void *unused,
+static int mdc_interpret_renew_capa(const struct lu_env *env,
+ struct ptlrpc_request *req, void *args,
int status)
{
- struct obd_capa *oc = req->rq_async_args.pointer_arg[0];
- renew_capa_cb_t cb = req->rq_async_args.pointer_arg[1];
+ struct mdc_renew_capa_args *ra = args;
struct mdt_body *body = NULL;
struct lustre_capa *capa;
ENTRY;
GOTO(out, capa = ERR_PTR(-EFAULT));
EXIT;
out:
- cb(oc, capa);
+ ra->ra_cb(ra->ra_oc, capa);
return 0;
}
renew_capa_cb_t cb)
{
struct ptlrpc_request *req;
+ struct mdc_renew_capa_args *ra;
ENTRY;
req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_GETATTR,
mdc_pack_body(req, &oc->c_capa.lc_fid, oc, OBD_MD_FLOSSCAPA, 0, -1, 0);
ptlrpc_request_set_replen(req);
- req->rq_async_args.pointer_arg[0] = oc;
- req->rq_async_args.pointer_arg[1] = cb;
+ CLASSERT(sizeof(*ra) <= sizeof(req->rq_async_args));
+ ra = ptlrpc_req_async_args(req);
+ ra->ra_oc = oc;
+ ra->ra_cb = cb;
req->rq_interpret_reply = mdc_interpret_renew_capa;
- ptlrpcd_add_req(req);
+ ptlrpcd_add_req(req, PDL_POLICY_LOCAL, -1);
RETURN(0);
}
static int mdc_connect(const struct lu_env *env,
- struct lustre_handle *dlm_handle,
+ struct obd_export **exp,
struct obd_device *obd, struct obd_uuid *cluuid,
struct obd_connect_data *data,
void *localdata)
/* mds-mds import features */
if (data && (data->ocd_connect_flags & OBD_CONNECT_MDS_MDS)) {
- spin_lock(&imp->imp_lock);
+ cfs_spin_lock(&imp->imp_lock);
imp->imp_server_timeout = 1;
- spin_unlock(&imp->imp_lock);
+ cfs_spin_unlock(&imp->imp_lock);
imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
CDEBUG(D_OTHER, "%s: Set 'mds' portal and timeout\n",
obd->obd_name);
}
- return client_connect_import(env, dlm_handle, obd, cluuid, data, NULL);
+ return client_connect_import(env, exp, obd, cluuid, data, NULL);
}
struct obd_ops mdc_obd_ops = {
.o_llog_init = mdc_llog_init,
.o_llog_finish = mdc_llog_finish,
.o_get_info = mdc_get_info,
- .o_process_config = mdc_process_config,
+ .o_process_config = mdc_process_config,
+ .o_get_uuid = mdc_get_uuid,
+ .o_quotactl = mdc_quotactl,
+ .o_quotacheck = mdc_quotacheck
};
struct md_ops mdc_md_ops = {
.m_getstatus = mdc_getstatus,
.m_change_cbdata = mdc_change_cbdata,
+ .m_find_cbdata = mdc_find_cbdata,
.m_close = mdc_close,
.m_create = mdc_create,
.m_done_writing = mdc_done_writing,
.m_set_open_replay_data = mdc_set_open_replay_data,
.m_clear_open_replay_data = mdc_clear_open_replay_data,
.m_renew_capa = mdc_renew_capa,
+ .m_unpack_capa = mdc_unpack_capa,
.m_get_remote_perm = mdc_get_remote_perm,
.m_intent_getattr_async = mdc_intent_getattr_async,
.m_revalidate_lock = mdc_revalidate_lock
};
-extern quota_interface_t mdc_quota_interface;
-
int __init mdc_init(void)
{
int rc;
struct lprocfs_static_vars lvars = { 0 };
lprocfs_mdc_init_vars(&lvars);
-
- request_module("lquota");
- quota_interface = PORTAL_SYMBOL_GET(mdc_quota_interface);
- init_obd_quota_ops(quota_interface, &mdc_obd_ops);
rc = class_register_type(&mdc_obd_ops, &mdc_md_ops, lvars.module_vars,
LUSTRE_MDC_NAME, NULL);
- if (rc && quota_interface)
- PORTAL_SYMBOL_PUT(mdc_quota_interface);
-
RETURN(rc);
}
#ifdef __KERNEL__
static void /*__exit*/ mdc_exit(void)
{
- if (quota_interface)
- PORTAL_SYMBOL_PUT(mdc_quota_interface);
-
class_unregister_type(LUSTRE_MDC_NAME);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff