-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Author: Wang Di <wangdi@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
#include <linux/module.h>
-#ifdef HAVE_EXT4_LDISKFS
-#include <ldiskfs/ldiskfs_jbd2.h>
-#else
-#include <linux/jbd.h>
-#endif
-#include <obd.h>
#include <obd_class.h>
-#include <lustre_ver.h>
-#include <obd_support.h>
-#include <lprocfs_status.h>
-
-#include <lustre_disk.h>
-#include <lustre_fid.h>
-#ifdef HAVE_EXT4_LDISKFS
-#include <ldiskfs/ldiskfs.h>
-#else
-#include <linux/ldiskfs_fs.h>
-#endif
#include <lustre_mds.h>
-#include <lustre/lustre_idl.h>
-#include <lustre_disk.h> /* for changelogs */
+#include <obd_support.h>
+#include <lu_object.h>
#include <lustre_param.h>
#include <lustre_fid.h>
static const char mdd_root_dir_name[] = "ROOT";
static const char mdd_obf_dir_name[] = "fid";
+static const char mdd_lpf_dir_name[] = "lost+found";
+
+/* Slab for MDD object allocation */
+struct kmem_cache *mdd_object_kmem;
+
+static struct lu_kmem_descr mdd_caches[] = {
+ {
+ .ckd_cache = &mdd_object_kmem,
+ .ckd_name = "mdd_obj",
+ .ckd_size = sizeof(struct mdd_object)
+ },
+ {
+ .ckd_cache = NULL
+ }
+};
-static int mdd_device_init(const struct lu_env *env, struct lu_device *d,
- const char *name, struct lu_device *next)
+static int mdd_connect_to_next(const struct lu_env *env, struct mdd_device *m,
+ const char *nextdev)
{
- struct mdd_device *mdd = lu2mdd_dev(d);
- int rc;
- ENTRY;
+ struct obd_connect_data *data = NULL;
+ struct lu_device *lud = mdd2lu_dev(m);
+ struct obd_device *obd;
+ int rc;
+ ENTRY;
+
+ LASSERT(m->mdd_child_exp == NULL);
+
+ OBD_ALLOC(data, sizeof(*data));
+ if (data == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ obd = class_name2obd(nextdev);
+ if (obd == NULL) {
+ CERROR("can't locate next device: %s\n", nextdev);
+ GOTO(out, rc = -ENOTCONN);
+ }
+
+ data->ocd_connect_flags = OBD_CONNECT_VERSION;
+ data->ocd_version = LUSTRE_VERSION_CODE;
+
+ rc = obd_connect(NULL, &m->mdd_child_exp, obd, &obd->obd_uuid, data, NULL);
+ if (rc) {
+ CERROR("cannot connect to next dev %s (%d)\n", nextdev, rc);
+ GOTO(out, rc);
+ }
+
+ lud->ld_site = m->mdd_child_exp->exp_obd->obd_lu_dev->ld_site;
+ LASSERT(lud->ld_site);
+ m->mdd_child = lu2dt_dev(m->mdd_child_exp->exp_obd->obd_lu_dev);
+ m->mdd_bottom = lu2dt_dev(lud->ld_site->ls_bottom_dev);
+ lu_dev_add_linkage(lud->ld_site, lud);
+
+out:
+ if (data)
+ OBD_FREE(data, sizeof(*data));
+ RETURN(rc);
+}
+
+static int mdd_init0(const struct lu_env *env, struct mdd_device *mdd,
+ struct lu_device_type *t, struct lustre_cfg *lcfg)
+{
+ int rc;
+ ENTRY;
+
+ mdd->mdd_md_dev.md_lu_dev.ld_ops = &mdd_lu_ops;
+ mdd->mdd_md_dev.md_ops = &mdd_ops;
- mdd->mdd_child = lu2dt_dev(next);
+ rc = mdd_connect_to_next(env, mdd, lustre_cfg_string(lcfg, 3));
+ if (rc)
+ RETURN(rc);
- /* Prepare transactions callbacks. */
- mdd->mdd_txn_cb.dtc_txn_start = mdd_txn_start_cb;
- mdd->mdd_txn_cb.dtc_txn_stop = mdd_txn_stop_cb;
- mdd->mdd_txn_cb.dtc_txn_commit = mdd_txn_commit_cb;
- mdd->mdd_txn_cb.dtc_cookie = mdd;
- mdd->mdd_txn_cb.dtc_tag = LCT_MD_THREAD;
- CFS_INIT_LIST_HEAD(&mdd->mdd_txn_cb.dtc_linkage);
- mdd->mdd_atime_diff = MAX_ATIME_DIFF;
+ mdd->mdd_atime_diff = MAX_ATIME_DIFF;
/* sync permission changes */
mdd->mdd_sync_permission = 1;
- rc = mdd_procfs_init(mdd, name);
+ dt_conf_get(env, mdd->mdd_child, &mdd->mdd_dt_conf);
+
+ /* we are using service name but not mdd obd name
+ * for compatibility reasons.
+ * It is passed from MDT in lustre_cfg[2] buffer */
+ rc = mdd_procfs_init(mdd, lustre_cfg_string(lcfg, 2));
+ if (rc < 0)
+ obd_disconnect(mdd->mdd_child_exp);
+
RETURN(rc);
}
struct lu_device *d)
{
struct mdd_device *mdd = lu2mdd_dev(d);
- struct lu_device *next = &mdd->mdd_child->dd_lu_dev;
int rc;
+ if (d->ld_site)
+ lu_dev_del_linkage(d->ld_site, d);
+
rc = mdd_procfs_fini(mdd);
if (rc) {
CERROR("proc fini error %d \n", rc);
return ERR_PTR(rc);
}
- return next;
+ return NULL;
}
-static void mdd_changelog_fini(const struct lu_env *env,
- struct mdd_device *mdd);
-
-static void mdd_device_shutdown(const struct lu_env *env,
- struct mdd_device *m, struct lustre_cfg *cfg)
+static int changelog_init_cb(const struct lu_env *env, struct llog_handle *llh,
+ struct llog_rec_hdr *hdr, void *data)
{
- ENTRY;
- mdd_changelog_fini(env, m);
- dt_txn_callback_del(m->mdd_child, &m->mdd_txn_cb);
- if (m->mdd_dot_lustre_objs.mdd_obf)
- mdd_object_put(env, m->mdd_dot_lustre_objs.mdd_obf);
- if (m->mdd_dot_lustre)
- mdd_object_put(env, m->mdd_dot_lustre);
- if (m->mdd_obd_dev)
- mdd_fini_obd(env, m, cfg);
- orph_index_fini(env, m);
- /* remove upcall device*/
- md_upcall_fini(&m->mdd_md_dev);
- EXIT;
-}
+ struct mdd_device *mdd = (struct mdd_device *)data;
+ struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
-static int changelog_init_cb(struct llog_handle *llh, struct llog_rec_hdr *hdr,
- void *data)
-{
- struct mdd_device *mdd = (struct mdd_device *)data;
- struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
- ENTRY;
+ LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
+ LASSERT(rec->cr_hdr.lrh_type == CHANGELOG_REC);
- LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
- LASSERT(rec->cr_hdr.lrh_type == CHANGELOG_REC);
-
- CDEBUG(D_INFO,
- "seeing record at index %d/%d/"LPU64" t=%x %.*s in log "LPX64"\n",
- hdr->lrh_index, rec->cr_hdr.lrh_index, rec->cr.cr_index,
- rec->cr.cr_type, rec->cr.cr_namelen, rec->cr.cr_name,
- llh->lgh_id.lgl_oid);
+ CDEBUG(D_INFO,
+ "seeing record at index %d/%d/"LPU64" t=%x %.*s in log"
+ DOSTID"\n", hdr->lrh_index, rec->cr_hdr.lrh_index,
+ rec->cr.cr_index, rec->cr.cr_type, rec->cr.cr_namelen,
+ rec->cr.cr_name, POSTID(&llh->lgh_id.lgl_oi));
- mdd->mdd_cl.mc_index = rec->cr.cr_index;
- RETURN(LLOG_PROC_BREAK);
+ mdd->mdd_cl.mc_index = rec->cr.cr_index;
+ return LLOG_PROC_BREAK;
}
-static int changelog_user_init_cb(struct llog_handle *llh,
- struct llog_rec_hdr *hdr, void *data)
+static int changelog_user_init_cb(const struct lu_env *env,
+ struct llog_handle *llh,
+ struct llog_rec_hdr *hdr, void *data)
{
struct mdd_device *mdd = (struct mdd_device *)data;
struct llog_changelog_user_rec *rec =
(struct llog_changelog_user_rec *)hdr;
- ENTRY;
LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
LASSERT(rec->cur_hdr.lrh_type == CHANGELOG_USER_REC);
CDEBUG(D_INFO, "seeing user at index %d/%d id=%d endrec="LPU64
- " in log "LPX64"\n", hdr->lrh_index, rec->cur_hdr.lrh_index,
- rec->cur_id, rec->cur_endrec, llh->lgh_id.lgl_oid);
+ " in log "DOSTID"\n", hdr->lrh_index, rec->cur_hdr.lrh_index,
+ rec->cur_id, rec->cur_endrec, POSTID(&llh->lgh_id.lgl_oi));
- cfs_spin_lock(&mdd->mdd_cl.mc_user_lock);
- mdd->mdd_cl.mc_lastuser = rec->cur_id;
- cfs_spin_unlock(&mdd->mdd_cl.mc_user_lock);
+ spin_lock(&mdd->mdd_cl.mc_user_lock);
+ mdd->mdd_cl.mc_lastuser = rec->cur_id;
+ if (rec->cur_endrec > mdd->mdd_cl.mc_index)
+ mdd->mdd_cl.mc_index = rec->cur_endrec;
+ spin_unlock(&mdd->mdd_cl.mc_user_lock);
- RETURN(LLOG_PROC_BREAK);
+ return LLOG_PROC_BREAK;
}
-
-static int mdd_changelog_llog_init(struct mdd_device *mdd)
+static int llog_changelog_cancel_cb(const struct lu_env *env,
+ struct llog_handle *llh,
+ struct llog_rec_hdr *hdr, void *data)
{
- struct obd_device *obd = mdd2obd_dev(mdd);
- struct llog_ctxt *ctxt;
- int rc;
+ struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
+ struct llog_cookie cookie;
+ long long endrec = *(long long *)data;
+ int rc;
- /* Find last changelog entry number */
- ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
- if (ctxt == NULL) {
- CERROR("no changelog context\n");
- return -EINVAL;
- }
- if (!ctxt->loc_handle) {
- llog_ctxt_put(ctxt);
- return -EINVAL;
- }
+ ENTRY;
- rc = llog_cat_reverse_process(ctxt->loc_handle, changelog_init_cb, mdd);
- llog_ctxt_put(ctxt);
+ /* This is always a (sub)log, not the catalog */
+ LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
- if (rc < 0) {
- CERROR("changelog init failed: %d\n", rc);
- return rc;
- }
- CDEBUG(D_IOCTL, "changelog starting index="LPU64"\n",
- mdd->mdd_cl.mc_index);
-
- /* Find last changelog user id */
- ctxt = llog_get_context(obd, LLOG_CHANGELOG_USER_ORIG_CTXT);
- if (ctxt == NULL) {
- CERROR("no changelog user context\n");
- return -EINVAL;
- }
- if (!ctxt->loc_handle) {
- llog_ctxt_put(ctxt);
- return -EINVAL;
- }
+ if (rec->cr.cr_index > endrec)
+ /* records are in order, so we're done */
+ RETURN(LLOG_PROC_BREAK);
- rc = llog_cat_reverse_process(ctxt->loc_handle, changelog_user_init_cb,
- mdd);
- llog_ctxt_put(ctxt);
+ cookie.lgc_lgl = llh->lgh_id;
+ cookie.lgc_index = hdr->lrh_index;
- if (rc < 0) {
- CERROR("changelog user init failed: %d\n", rc);
- return rc;
- }
+ /* cancel them one at a time. I suppose we could store up the cookies
+ * and cancel them all at once; probably more efficient, but this is
+ * done as a user call, so who cares... */
+ rc = llog_cat_cancel_records(env, llh->u.phd.phd_cat_handle, 1,
+ &cookie);
+ RETURN(rc < 0 ? rc : 0);
+}
- /* If we have registered users, assume we want changelogs on */
- if (mdd->mdd_cl.mc_lastuser > 0)
- rc = mdd_changelog_on(mdd, 1);
+static int llog_changelog_cancel(const struct lu_env *env,
+ struct llog_ctxt *ctxt,
+ struct lov_stripe_md *lsm, int count,
+ struct llog_cookie *cookies, int flags)
+{
+ struct llog_handle *cathandle = ctxt->loc_handle;
+ int rc;
- return rc;
+ ENTRY;
+
+ /* This should only be called with the catalog handle */
+ LASSERT(cathandle->lgh_hdr->llh_flags & LLOG_F_IS_CAT);
+
+ rc = llog_cat_process(env, cathandle, llog_changelog_cancel_cb,
+ (void *)cookies, 0, 0);
+ if (rc >= 0)
+ /* 0 or 1 means we're done */
+ rc = 0;
+ else
+ CERROR("%s: cancel idx %u of catalog "DOSTID" rc=%d\n",
+ ctxt->loc_obd->obd_name, cathandle->lgh_last_idx,
+ POSTID(&cathandle->lgh_id.lgl_oi), rc);
+
+ RETURN(rc);
+}
+
+static struct llog_operations changelog_orig_logops;
+
+int mdd_changelog_on(const struct lu_env *env, struct mdd_device *mdd, int on);
+
+static int mdd_changelog_llog_init(const struct lu_env *env,
+ struct mdd_device *mdd)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_ctxt *ctxt = NULL, *uctxt = NULL;
+ int rc;
+
+ ENTRY;
+
+ /* LU-2844 mdd setup failure should not cause umount oops */
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_CHANGELOG_INIT))
+ RETURN(-EIO);
+
+ OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
+ obd->obd_lvfs_ctxt.dt = mdd->mdd_bottom;
+ rc = llog_setup(env, obd, &obd->obd_olg, LLOG_CHANGELOG_ORIG_CTXT,
+ obd, &changelog_orig_logops);
+ if (rc) {
+ CERROR("%s: changelog llog setup failed: rc = %d\n",
+ obd->obd_name, rc);
+ RETURN(rc);
+ }
+
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ LASSERT(ctxt);
+
+ rc = llog_open_create(env, ctxt, &ctxt->loc_handle, NULL,
+ CHANGELOG_CATALOG);
+ if (rc)
+ GOTO(out_cleanup, rc);
+
+ rc = llog_cat_init_and_process(env, ctxt->loc_handle);
+ if (rc)
+ GOTO(out_close, rc);
+
+ rc = llog_cat_reverse_process(env, ctxt->loc_handle,
+ changelog_init_cb, mdd);
+
+ if (rc < 0) {
+ CERROR("%s: changelog init failed: rc = %d\n", obd->obd_name,
+ rc);
+ GOTO(out_close, rc);
+ }
+
+ CDEBUG(D_IOCTL, "changelog starting index="LPU64"\n",
+ mdd->mdd_cl.mc_index);
+
+ /* setup user changelog */
+ rc = llog_setup(env, obd, &obd->obd_olg, LLOG_CHANGELOG_USER_ORIG_CTXT,
+ obd, &changelog_orig_logops);
+ if (rc) {
+ CERROR("%s: changelog users llog setup failed: rc = %d\n",
+ obd->obd_name, rc);
+ GOTO(out_close, rc);
+ }
+
+ uctxt = llog_get_context(obd, LLOG_CHANGELOG_USER_ORIG_CTXT);
+ LASSERT(ctxt);
+
+ rc = llog_open_create(env, uctxt, &uctxt->loc_handle, NULL,
+ CHANGELOG_USERS);
+ if (rc)
+ GOTO(out_ucleanup, rc);
+
+ uctxt->loc_handle->lgh_logops->lop_add = llog_cat_add_rec;
+ uctxt->loc_handle->lgh_logops->lop_declare_add = llog_cat_declare_add_rec;
+
+ rc = llog_cat_init_and_process(env, uctxt->loc_handle);
+ if (rc)
+ GOTO(out_uclose, rc);
+
+ rc = llog_cat_reverse_process(env, uctxt->loc_handle,
+ changelog_user_init_cb, mdd);
+ if (rc < 0) {
+ CERROR("%s: changelog user init failed: rc = %d\n",
+ obd->obd_name, rc);
+ GOTO(out_uclose, rc);
+ }
+
+ /* If we have registered users, assume we want changelogs on */
+ if (mdd->mdd_cl.mc_lastuser > 0) {
+ rc = mdd_changelog_on(env, mdd, 1);
+ if (rc < 0)
+ GOTO(out_uclose, rc);
+ }
+ llog_ctxt_put(ctxt);
+ llog_ctxt_put(uctxt);
+ RETURN(0);
+out_uclose:
+ llog_cat_close(env, uctxt->loc_handle);
+out_ucleanup:
+ llog_cleanup(env, uctxt);
+out_close:
+ llog_cat_close(env, ctxt->loc_handle);
+out_cleanup:
+ llog_cleanup(env, ctxt);
+ return rc;
}
static int mdd_changelog_init(const struct lu_env *env, struct mdd_device *mdd)
{
- int rc;
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ int rc;
- mdd->mdd_cl.mc_index = 0;
- cfs_spin_lock_init(&mdd->mdd_cl.mc_lock);
- cfs_waitq_init(&mdd->mdd_cl.mc_waitq);
- mdd->mdd_cl.mc_starttime = cfs_time_current_64();
- mdd->mdd_cl.mc_flags = 0; /* off by default */
- mdd->mdd_cl.mc_mask = CHANGELOG_DEFMASK;
- cfs_spin_lock_init(&mdd->mdd_cl.mc_user_lock);
- mdd->mdd_cl.mc_lastuser = 0;
+ mdd->mdd_cl.mc_index = 0;
+ spin_lock_init(&mdd->mdd_cl.mc_lock);
+ mdd->mdd_cl.mc_starttime = cfs_time_current_64();
+ mdd->mdd_cl.mc_flags = 0; /* off by default */
+ mdd->mdd_cl.mc_mask = CHANGELOG_DEFMASK;
+ spin_lock_init(&mdd->mdd_cl.mc_user_lock);
+ mdd->mdd_cl.mc_lastuser = 0;
- rc = mdd_changelog_llog_init(mdd);
- if (rc) {
- CERROR("Changelog setup during init failed %d\n", rc);
- mdd->mdd_cl.mc_flags |= CLM_ERR;
- }
+ rc = mdd_changelog_llog_init(env, mdd);
+ if (rc) {
+ CERROR("%s: changelog setup during init failed: rc = %d\n",
+ obd->obd_name, rc);
+ mdd->mdd_cl.mc_flags |= CLM_ERR;
+ }
- return rc;
+ return rc;
}
-static void mdd_changelog_fini(const struct lu_env *env, struct mdd_device *mdd)
+static void mdd_changelog_fini(const struct lu_env *env,
+ struct mdd_device *mdd)
{
- mdd->mdd_cl.mc_flags = 0;
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_ctxt *ctxt;
+
+ mdd->mdd_cl.mc_flags = 0;
+
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ if (ctxt) {
+ llog_cat_close(env, ctxt->loc_handle);
+ llog_cleanup(env, ctxt);
+ }
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_USER_ORIG_CTXT);
+ if (ctxt) {
+ llog_cat_close(env, ctxt->loc_handle);
+ llog_cleanup(env, ctxt);
+ }
}
+int mdd_changelog_write_header(const struct lu_env *env,
+ struct mdd_device *mdd, int markerflags);
+
/* Start / stop recording */
-int mdd_changelog_on(struct mdd_device *mdd, int on)
+int mdd_changelog_on(const struct lu_env *env, struct mdd_device *mdd, int on)
{
int rc = 0;
mdd2obd_dev(mdd)->obd_name);
rc = -ESRCH;
} else {
- cfs_spin_lock(&mdd->mdd_cl.mc_lock);
- mdd->mdd_cl.mc_flags |= CLM_ON;
- cfs_spin_unlock(&mdd->mdd_cl.mc_lock);
- rc = mdd_changelog_write_header(mdd, CLM_START);
- }
- } else if ((on == 0) && ((mdd->mdd_cl.mc_flags & CLM_ON) == CLM_ON)) {
- LCONSOLE_INFO("%s: changelog off\n",mdd2obd_dev(mdd)->obd_name);
- rc = mdd_changelog_write_header(mdd, CLM_FINI);
- cfs_spin_lock(&mdd->mdd_cl.mc_lock);
- mdd->mdd_cl.mc_flags &= ~CLM_ON;
- cfs_spin_unlock(&mdd->mdd_cl.mc_lock);
- }
- return rc;
-}
-
-static __u64 cl_time(void) {
- cfs_fs_time_t time;
-
- cfs_fs_time_current(&time);
- return (((__u64)time.tv_sec) << 30) + time.tv_nsec;
-}
-
-/** Add a changelog entry \a rec to the changelog llog
- * \param mdd
- * \param rec
- * \param handle - currently ignored since llogs start their own transaction;
- * this will hopefully be fixed in llog rewrite
- * \retval 0 ok
- */
-int mdd_changelog_llog_write(struct mdd_device *mdd,
- struct llog_changelog_rec *rec,
- struct thandle *handle)
-{
- struct obd_device *obd = mdd2obd_dev(mdd);
- struct llog_ctxt *ctxt;
- int rc;
-
- rec->cr_hdr.lrh_len = llog_data_len(sizeof(*rec) + rec->cr.cr_namelen);
- /* llog_lvfs_write_rec sets the llog tail len */
- rec->cr_hdr.lrh_type = CHANGELOG_REC;
- rec->cr.cr_time = cl_time();
- cfs_spin_lock(&mdd->mdd_cl.mc_lock);
- /* NB: I suppose it's possible llog_add adds out of order wrt cr_index,
- but as long as the MDD transactions are ordered correctly for e.g.
- rename conflicts, I don't think this should matter. */
- rec->cr.cr_index = ++mdd->mdd_cl.mc_index;
- cfs_spin_unlock(&mdd->mdd_cl.mc_lock);
- ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
- if (ctxt == NULL)
- return -ENXIO;
-
- /* nested journal transaction */
- rc = llog_add(ctxt, &rec->cr_hdr, NULL, NULL, 0);
- llog_ctxt_put(ctxt);
-
- cfs_waitq_signal(&mdd->mdd_cl.mc_waitq);
-
- return rc;
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ mdd->mdd_cl.mc_flags |= CLM_ON;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
+ rc = mdd_changelog_write_header(env, mdd, CLM_START);
+ }
+ } else if ((on == 0) && ((mdd->mdd_cl.mc_flags & CLM_ON) == CLM_ON)) {
+ LCONSOLE_INFO("%s: changelog off\n",mdd2obd_dev(mdd)->obd_name);
+ rc = mdd_changelog_write_header(env, mdd, CLM_FINI);
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ mdd->mdd_cl.mc_flags &= ~CLM_ON;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
+ }
+ return rc;
}
/** Remove entries with indicies up to and including \a endrec from the
* \param endrec
* \retval 0 ok
*/
-int mdd_changelog_llog_cancel(struct mdd_device *mdd, long long endrec)
+int mdd_changelog_llog_cancel(const struct lu_env *env,
+ struct mdd_device *mdd, long long endrec)
{
struct obd_device *obd = mdd2obd_dev(mdd);
struct llog_ctxt *ctxt;
if (ctxt == NULL)
return -ENXIO;
- cfs_spin_lock(&mdd->mdd_cl.mc_lock);
- cur = (long long)mdd->mdd_cl.mc_index;
- cfs_spin_unlock(&mdd->mdd_cl.mc_lock);
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ cur = (long long)mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
if (endrec > cur)
endrec = cur;
time. In case of crash, we just restart with old log so we're
allright. */
if (endrec == cur) {
- rc = mdd_changelog_write_header(mdd, CLM_PURGE);
+ /* XXX: transaction is started by llog itself */
+ rc = mdd_changelog_write_header(env, mdd, CLM_PURGE);
if (rc)
goto out;
}
changed since the last purge) */
mdd->mdd_cl.mc_starttime = cfs_time_current_64();
- rc = llog_cancel(ctxt, NULL, 1, (struct llog_cookie *)&endrec, 0);
+ rc = llog_cancel(env, ctxt, NULL, 1, (struct llog_cookie *)&endrec, 0);
out:
llog_ctxt_put(ctxt);
return rc;
* \param markerflags - CLM_*
* \retval 0 ok
*/
-int mdd_changelog_write_header(struct mdd_device *mdd, int markerflags)
-{
- struct obd_device *obd = mdd2obd_dev(mdd);
- struct llog_changelog_rec *rec;
- int reclen;
- int len = strlen(obd->obd_name);
- int rc;
- ENTRY;
-
- reclen = llog_data_len(sizeof(*rec) + len);
- OBD_ALLOC(rec, reclen);
- if (rec == NULL)
- RETURN(-ENOMEM);
+int mdd_changelog_write_header(const struct lu_env *env,
+ struct mdd_device *mdd, int markerflags)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_changelog_rec *rec;
+ struct lu_buf *buf;
+ struct llog_ctxt *ctxt;
+ int reclen;
+ int len = strlen(obd->obd_name);
+ int rc;
+
+ ENTRY;
+
+ if (mdd->mdd_cl.mc_mask & (1 << CL_MARK)) {
+ mdd->mdd_cl.mc_starttime = cfs_time_current_64();
+ RETURN(0);
+ }
+
+ reclen = llog_data_len(sizeof(*rec) + len);
+ buf = lu_buf_check_and_alloc(&mdd_env_info(env)->mti_big_buf, reclen);
+ if (buf->lb_buf == NULL)
+ RETURN(-ENOMEM);
+ rec = buf->lb_buf;
rec->cr.cr_flags = CLF_VERSION;
rec->cr.cr_type = CL_MARK;
rec->cr.cr_namelen = len;
memcpy(rec->cr.cr_name, obd->obd_name, rec->cr.cr_namelen);
/* Status and action flags */
- rec->cr.cr_markerflags = mdd->mdd_cl.mc_flags | markerflags;
+ rec->cr.cr_markerflags = mdd->mdd_cl.mc_flags | markerflags;
+ rec->cr_hdr.lrh_len = llog_data_len(sizeof(*rec) + rec->cr.cr_namelen);
+ rec->cr_hdr.lrh_type = CHANGELOG_REC;
+ rec->cr.cr_time = cl_time();
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ rec->cr.cr_index = ++mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
- rc = (mdd->mdd_cl.mc_mask & (1 << CL_MARK)) ?
- mdd_changelog_llog_write(mdd, rec, NULL) : 0;
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ LASSERT(ctxt);
- /* assume on or off event; reset repeat-access time */
- mdd->mdd_cl.mc_starttime = cfs_time_current_64();
+ rc = llog_cat_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL, NULL);
+ if (rc > 0)
+ rc = 0;
+ llog_ctxt_put(ctxt);
- OBD_FREE(rec, reclen);
- RETURN(rc);
+ /* assume on or off event; reset repeat-access time */
+ mdd->mdd_cl.mc_starttime = cfs_time_current_64();
+ RETURN(rc);
}
/**
- * Create ".lustre" directory.
+ * Lookup method for "fid" object. Only filenames with correct SEQ:OID format
+ * are valid. We also check if object with passed fid exists or not.
*/
-static int create_dot_lustre_dir(const struct lu_env *env, struct mdd_device *m)
-{
- struct lu_fid *fid = &mdd_env_info(env)->mti_fid;
- struct md_object *mdo;
- int rc;
-
- memcpy(fid, &LU_DOT_LUSTRE_FID, sizeof(struct lu_fid));
- mdo = llo_store_create_index(env, &m->mdd_md_dev, m->mdd_child,
- mdd_root_dir_name, dot_lustre_name,
- fid, &dt_directory_features);
- /* .lustre dir may be already present */
- if (IS_ERR(mdo) && PTR_ERR(mdo) != -EEXIST) {
- rc = PTR_ERR(mdo);
- CERROR("creating obj [%s] fid = "DFID" rc = %d\n",
- dot_lustre_name, PFID(fid), rc);
- RETURN(rc);
- }
-
- if (!IS_ERR(mdo))
- lu_object_put(env, &mdo->mo_lu);
-
- return 0;
-}
-
-
-static int dot_lustre_mdd_permission(const struct lu_env *env,
- struct md_object *pobj,
- struct md_object *cobj,
- struct md_attr *attr, int mask)
-{
- if (mask & ~(MAY_READ | MAY_EXEC))
- return -EPERM;
- else
- return 0;
-}
-
-static int dot_lustre_mdd_attr_get(const struct lu_env *env,
- struct md_object *obj, struct md_attr *ma)
-{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
-
- return mdd_attr_get_internal_locked(env, mdd_obj, ma);
-}
-
-static int dot_lustre_mdd_attr_set(const struct lu_env *env,
- struct md_object *obj,
- const struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_xattr_get(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf,
- const char *name)
-{
- return 0;
-}
-
-static int dot_lustre_mdd_xattr_list(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf)
-{
- return 0;
-}
-
-static int dot_lustre_mdd_xattr_set(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_buf *buf, const char *name,
- int fl)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_xattr_del(const struct lu_env *env,
- struct md_object *obj,
- const char *name)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_readlink(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf)
-{
- return 0;
-}
-
-static int dot_lustre_mdd_object_create(const struct lu_env *env,
- struct md_object *obj,
- const struct md_op_spec *spec,
- struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_ref_add(const struct lu_env *env,
- struct md_object *obj,
- const struct md_attr *ma)
+static int obf_lookup(const struct lu_env *env, struct md_object *p,
+ const struct lu_name *lname, struct lu_fid *f,
+ struct md_op_spec *spec)
{
- return -EPERM;
-}
+ char *name = (char *)lname->ln_name;
+ struct mdd_device *mdd = mdo2mdd(p);
+ struct mdd_object *child;
+ int rc = 0;
-static int dot_lustre_mdd_ref_del(const struct lu_env *env,
- struct md_object *obj,
- struct md_attr *ma)
-{
- return -EPERM;
-}
+ while (*name == '[')
+ name++;
-static int dot_lustre_mdd_open(const struct lu_env *env, struct md_object *obj,
- int flags)
-{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ sscanf(name, SFID, RFID(f));
+ if (!fid_is_sane(f)) {
+ CWARN("%s: bad FID format [%s], should be "DFID"\n",
+ mdd2obd_dev(mdd)->obd_name, lname->ln_name,
+ (__u64)FID_SEQ_NORMAL, 1, 0);
+ GOTO(out, rc = -EINVAL);
+ }
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count++;
- mdd_write_unlock(env, mdd_obj);
+ if (!fid_is_norm(f) && !fid_is_igif(f) && !fid_is_root(f) &&
+ !fid_seq_is_dot(f->f_seq)) {
+ CWARN("%s: "DFID" is invalid, sequence should be "
+ ">= "LPX64" or within ["LPX64","LPX64"].\n",
+ mdd2obd_dev(mdd)->obd_name, PFID(f),
+ (__u64)FID_SEQ_NORMAL, (__u64)FID_SEQ_IGIF,
+ (__u64)FID_SEQ_IGIF_MAX);
+ GOTO(out, rc = -EINVAL);
+ }
- return 0;
-}
+ /* Check if object with this fid exists */
+ child = mdd_object_find(env, mdd, f);
+ if (child == NULL)
+ GOTO(out, rc = 0);
+ if (IS_ERR(child))
+ GOTO(out, rc = PTR_ERR(child));
-static int dot_lustre_mdd_close(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma)
-{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ if (mdd_object_exists(child) == 0)
+ rc = -ENOENT;
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count--;
- mdd_write_unlock(env, mdd_obj);
+ mdd_object_put(env, child);
- return 0;
+out:
+ return rc;
}
-static int dot_lustre_mdd_object_sync(const struct lu_env *env,
- struct md_object *obj)
+static int mdd_dummy_create(const struct lu_env *env,
+ struct md_object *pobj,
+ const struct lu_name *lname,
+ struct md_object *child,
+ struct md_op_spec *spec,
+ struct md_attr* ma)
{
- return -ENOSYS;
+ return -EPERM;
}
-static dt_obj_version_t dot_lustre_mdd_version_get(const struct lu_env *env,
- struct md_object *obj)
+static int mdd_dummy_rename(const struct lu_env *env,
+ struct md_object *src_pobj,
+ struct md_object *tgt_pobj,
+ const struct lu_fid *lf,
+ const struct lu_name *lsname,
+ struct md_object *tobj,
+ const struct lu_name *ltname,
+ struct md_attr *ma)
{
- return 0;
+ return -EPERM;
}
-static void dot_lustre_mdd_version_set(const struct lu_env *env,
- struct md_object *obj,
- dt_obj_version_t version)
+static int mdd_dummy_link(const struct lu_env *env,
+ struct md_object *tgt_obj,
+ struct md_object *src_obj,
+ const struct lu_name *lname,
+ struct md_attr *ma)
{
- return;
+ return -EPERM;
}
-static int dot_lustre_mdd_path(const struct lu_env *env, struct md_object *obj,
- char *path, int pathlen, __u64 *recno, int *linkno)
+static int mdd_dummy_unlink(const struct lu_env *env,
+ struct md_object *pobj,
+ struct md_object *cobj,
+ const struct lu_name *lname,
+ struct md_attr *ma,
+ int no_name)
{
- return -ENOSYS;
+ return -EPERM;
}
-
-static struct md_object_operations mdd_dot_lustre_obj_ops = {
- .moo_permission = dot_lustre_mdd_permission,
- .moo_attr_get = dot_lustre_mdd_attr_get,
- .moo_attr_set = dot_lustre_mdd_attr_set,
- .moo_xattr_get = dot_lustre_mdd_xattr_get,
- .moo_xattr_list = dot_lustre_mdd_xattr_list,
- .moo_xattr_set = dot_lustre_mdd_xattr_set,
- .moo_xattr_del = dot_lustre_mdd_xattr_del,
- .moo_readpage = mdd_readpage,
- .moo_readlink = dot_lustre_mdd_readlink,
- .moo_object_create = dot_lustre_mdd_object_create,
- .moo_ref_add = dot_lustre_mdd_ref_add,
- .moo_ref_del = dot_lustre_mdd_ref_del,
- .moo_open = dot_lustre_mdd_open,
- .moo_close = dot_lustre_mdd_close,
- .moo_capa_get = mdd_capa_get,
- .moo_object_sync = dot_lustre_mdd_object_sync,
- .moo_version_get = dot_lustre_mdd_version_get,
- .moo_version_set = dot_lustre_mdd_version_set,
- .moo_path = dot_lustre_mdd_path,
+static struct md_dir_operations mdd_obf_dir_ops = {
+ .mdo_lookup = obf_lookup,
+ .mdo_create = mdd_dummy_create,
+ .mdo_rename = mdd_dummy_rename,
+ .mdo_link = mdd_dummy_link,
+ .mdo_unlink = mdd_dummy_unlink
};
+static struct md_dir_operations mdd_lpf_dir_ops = {
+ .mdo_lookup = mdd_lookup,
+ .mdo_create = mdd_dummy_create,
+ .mdo_rename = mdd_dummy_rename,
+ .mdo_link = mdd_dummy_link,
+ .mdo_unlink = mdd_dummy_unlink
+};
-static int dot_lustre_mdd_lookup(const struct lu_env *env, struct md_object *p,
- const struct lu_name *lname, struct lu_fid *f,
- struct md_op_spec *spec)
+static struct md_object *mdo_locate(const struct lu_env *env,
+ struct md_device *md,
+ const struct lu_fid *fid)
{
- if (strcmp(lname->ln_name, mdd_obf_dir_name) == 0)
- *f = LU_OBF_FID;
- else
- return -ENOENT;
+ struct lu_object *obj;
+ struct md_object *mdo;
- return 0;
+ obj = lu_object_find(env, &md->md_lu_dev, fid, NULL);
+ if (!IS_ERR(obj)) {
+ obj = lu_object_locate(obj->lo_header, md->md_lu_dev.ld_type);
+ LASSERT(obj != NULL);
+ mdo = lu2md(obj);
+ } else {
+ mdo = ERR_PTR(PTR_ERR(obj));
+ }
+ return mdo;
}
-static mdl_mode_t dot_lustre_mdd_lock_mode(const struct lu_env *env,
- struct md_object *obj,
- mdl_mode_t mode)
+static int mdd_lpf_setup(const struct lu_env *env, struct mdd_device *m)
{
- return MDL_MINMODE;
-}
+ struct md_object *mdo;
+ struct mdd_object *mdd_lpf;
+ struct lu_fid fid = LU_LPF_FID;
+ int rc;
+ ENTRY;
-static int dot_lustre_mdd_create(const struct lu_env *env,
- struct md_object *pobj,
- const struct lu_name *lname,
- struct md_object *child,
- struct md_op_spec *spec,
- struct md_attr* ma)
-{
- return -EPERM;
-}
+ rc = mdd_local_file_create(env, m, mdd_object_fid(m->mdd_dot_lustre),
+ mdd_lpf_dir_name, S_IFDIR | S_IRUSR | S_IXUSR,
+ &fid);
+ if (rc != 0)
+ RETURN(rc);
-static int dot_lustre_mdd_create_data(const struct lu_env *env,
- struct md_object *p,
- struct md_object *o,
- const struct md_op_spec *spec,
- struct md_attr *ma)
-{
- return -EPERM;
-}
+ mdo = mdo_locate(env, &m->mdd_md_dev, &fid);
+ if (IS_ERR(mdo))
+ RETURN(PTR_ERR(mdo));
-static int dot_lustre_mdd_rename(const struct lu_env *env,
- struct md_object *src_pobj,
- struct md_object *tgt_pobj,
- const struct lu_fid *lf,
- const struct lu_name *lsname,
- struct md_object *tobj,
- const struct lu_name *ltname,
- struct md_attr *ma)
-{
- return -EPERM;
-}
+ LASSERT(lu_object_exists(&mdo->mo_lu));
-static int dot_lustre_mdd_link(const struct lu_env *env,
- struct md_object *tgt_obj,
- struct md_object *src_obj,
- const struct lu_name *lname,
- struct md_attr *ma)
-{
- return -EPERM;
-}
+ mdd_lpf = md2mdd_obj(mdo);
+ mdd_lpf->mod_obj.mo_dir_ops = &mdd_lpf_dir_ops;
+ m->mdd_dot_lustre_objs.mdd_lpf = mdd_lpf;
-static int dot_lustre_mdd_unlink(const struct lu_env *env,
- struct md_object *pobj,
- struct md_object *cobj,
- const struct lu_name *lname,
- struct md_attr *ma)
-{
- return -EPERM;
+ RETURN(0);
}
-static int dot_lustre_mdd_name_insert(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_name *lname,
- const struct lu_fid *fid,
- const struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_name_remove(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_name *lname,
- const struct md_attr *ma)
-{
- return -EPERM;
-}
-
-static int dot_lustre_mdd_rename_tgt(const struct lu_env *env,
- struct md_object *pobj,
- struct md_object *tobj,
- const struct lu_fid *fid,
- const struct lu_name *lname,
- struct md_attr *ma)
-{
- return -EPERM;
-}
-
-
-static struct md_dir_operations mdd_dot_lustre_dir_ops = {
- .mdo_is_subdir = mdd_is_subdir,
- .mdo_lookup = dot_lustre_mdd_lookup,
- .mdo_lock_mode = dot_lustre_mdd_lock_mode,
- .mdo_create = dot_lustre_mdd_create,
- .mdo_create_data = dot_lustre_mdd_create_data,
- .mdo_rename = dot_lustre_mdd_rename,
- .mdo_link = dot_lustre_mdd_link,
- .mdo_unlink = dot_lustre_mdd_unlink,
- .mdo_name_insert = dot_lustre_mdd_name_insert,
- .mdo_name_remove = dot_lustre_mdd_name_remove,
- .mdo_rename_tgt = dot_lustre_mdd_rename_tgt,
-};
-
-static int obf_attr_get(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma)
+/**
+ * Create special in-memory "fid" object for open-by-fid.
+ */
+static int mdd_obf_setup(const struct lu_env *env, struct mdd_device *m)
{
- int rc = 0;
+ struct md_object *mdo;
+ struct mdd_object *mdd_obf;
+ struct lu_fid fid = LU_OBF_FID;
+ int rc;
- if (ma->ma_need & MA_INODE) {
- struct mdd_device *mdd = mdo2mdd(obj);
+ rc = mdd_local_file_create(env, m, mdd_object_fid(m->mdd_dot_lustre),
+ mdd_obf_dir_name, S_IFDIR | S_IXUSR, &fid);
+ if (rc < 0)
+ RETURN(rc);
- /* "fid" is a virtual object and hence does not have any "real"
- * attributes. So we reuse attributes of .lustre for "fid" dir */
- ma->ma_need |= MA_INODE;
- rc = dot_lustre_mdd_attr_get(env, &mdd->mdd_dot_lustre->mod_obj,
- ma);
- if (rc)
- return rc;
- ma->ma_valid |= MA_INODE;
- }
-
- /* "fid" directory does not have any striping information. */
- if (ma->ma_need & MA_LOV) {
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
-
- if (ma->ma_valid & MA_LOV)
- return 0;
-
- if (!(S_ISREG(mdd_object_type(mdd_obj)) ||
- S_ISDIR(mdd_object_type(mdd_obj))))
- return 0;
-
- if (ma->ma_need & MA_LOV_DEF) {
- rc = mdd_get_default_md(mdd_obj, ma->ma_lmm);
- if (rc > 0) {
- ma->ma_lmm_size = rc;
- ma->ma_valid |= MA_LOV;
- rc = 0;
- }
- }
- }
+ mdo = mdo_locate(env, &m->mdd_md_dev, &fid);
+ if (IS_ERR(mdo))
+ RETURN(PTR_ERR(mdo));
- return rc;
-}
+ LASSERT(lu_object_exists(&mdo->mo_lu));
-static int obf_attr_set(const struct lu_env *env, struct md_object *obj,
- const struct md_attr *ma)
-{
- return -EPERM;
-}
+ mdd_obf = md2mdd_obj(mdo);
+ mdd_obf->mod_obj.mo_dir_ops = &mdd_obf_dir_ops;
+ m->mdd_dot_lustre_objs.mdd_obf = mdd_obf;
-static int obf_xattr_get(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf,
- const char *name)
-{
- return 0;
+ return 0;
}
-static int obf_mdd_open(const struct lu_env *env, struct md_object *obj,
- int flags)
+static void mdd_dot_lustre_cleanup(const struct lu_env *env,
+ struct mdd_device *m)
{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
-
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count++;
- mdd_write_unlock(env, mdd_obj);
-
- return 0;
+ if (m->mdd_dot_lustre_objs.mdd_lpf != NULL) {
+ mdd_object_put(env, m->mdd_dot_lustre_objs.mdd_lpf);
+ m->mdd_dot_lustre_objs.mdd_lpf = NULL;
+ }
+ if (m->mdd_dot_lustre_objs.mdd_obf != NULL) {
+ mdd_object_put(env, m->mdd_dot_lustre_objs.mdd_obf);
+ m->mdd_dot_lustre_objs.mdd_obf = NULL;
+ }
+ if (m->mdd_dot_lustre != NULL) {
+ mdd_object_put(env, m->mdd_dot_lustre);
+ m->mdd_dot_lustre = NULL;
+ }
}
-static int obf_mdd_close(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma)
+/** Setup ".lustre" directory object */
+static int mdd_dot_lustre_setup(const struct lu_env *env, struct mdd_device *m)
{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ struct md_object *mdo;
+ struct lu_fid fid;
+ int rc;
+
+ ENTRY;
+ /* Create ".lustre" directory in ROOT. */
+ fid = LU_DOT_LUSTRE_FID;
+ rc = mdd_local_file_create(env, m, &m->mdd_root_fid,
+ dot_lustre_name,
+ S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO,
+ &fid);
+ if (rc < 0)
+ RETURN(rc);
+ mdo = mdo_locate(env, &m->mdd_md_dev, &fid);
+ if (IS_ERR(mdo))
+ RETURN(PTR_ERR(mdo));
+ LASSERT(lu_object_exists(&mdo->mo_lu));
+
+ m->mdd_dot_lustre = md2mdd_obj(mdo);
+
+ rc = mdd_obf_setup(env, m);
+ if (rc) {
+ CERROR("%s: error initializing \"fid\" object: rc = %d.\n",
+ mdd2obd_dev(m)->obd_name, rc);
+ GOTO(out, rc);
+ }
+
+ rc = mdd_lpf_setup(env, m);
+ if (rc != 0) {
+ CERROR("%s: error initializing \"lost+found\": rc = %d.\n",
+ mdd2obd_dev(m)->obd_name, rc);
+ GOTO(out, rc);
+ }
+
+ RETURN(0);
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count--;
- mdd_write_unlock(env, mdd_obj);
-
- return 0;
-}
+out:
+ mdd_dot_lustre_cleanup(env, m);
-/** Nothing to list in "fid" directory */
-static int obf_mdd_readpage(const struct lu_env *env, struct md_object *obj,
- const struct lu_rdpg *rdpg)
-{
- return -EPERM;
+ return rc;
}
-static int obf_path(const struct lu_env *env, struct md_object *obj,
- char *path, int pathlen, __u64 *recno, int *linkno)
-{
- return -ENOSYS;
-}
-static struct md_object_operations mdd_obf_obj_ops = {
- .moo_attr_get = obf_attr_get,
- .moo_attr_set = obf_attr_set,
- .moo_xattr_get = obf_xattr_get,
- .moo_open = obf_mdd_open,
- .moo_close = obf_mdd_close,
- .moo_readpage = obf_mdd_readpage,
- .moo_path = obf_path
-};
+static struct llog_operations hsm_actions_logops;
/**
- * Lookup method for "fid" object. Only filenames with correct SEQ:OID format
- * are valid. We also check if object with passed fid exists or not.
+ * set llog methods and create LLOG_AGENT_ORIG_CTXT llog
+ * object in obd_device
*/
-static int obf_lookup(const struct lu_env *env, struct md_object *p,
- const struct lu_name *lname, struct lu_fid *f,
- struct md_op_spec *spec)
+static int mdd_hsm_actions_llog_init(const struct lu_env *env,
+ struct mdd_device *m)
{
- char *name = (char *)lname->ln_name;
- struct mdd_device *mdd = mdo2mdd(p);
- struct mdd_object *child;
- int rc = 0;
-
- while (*name == '[')
- name++;
+ struct obd_device *obd = mdd2obd_dev(m);
+ struct llog_ctxt *ctxt = NULL;
+ int rc;
+ ENTRY;
- sscanf(name, SFID, RFID(f));
- if (!fid_is_sane(f)) {
- CWARN("bad FID format [%s], should be "DFID"\n", lname->ln_name,
- (__u64)1, 2, 0);
- GOTO(out, rc = -EINVAL);
- }
+ OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
+ obd->obd_lvfs_ctxt.dt = m->mdd_bottom;
- /* Check if object with this fid exists */
- child = mdd_object_find(env, mdd, f);
- if (child == NULL)
- GOTO(out, rc = 0);
- if (IS_ERR(child))
- GOTO(out, rc = PTR_ERR(child));
-
- if (mdd_object_exists(child) == 0)
- rc = -ENOENT;
+ rc = llog_setup(env, obd, &obd->obd_olg, LLOG_AGENT_ORIG_CTXT,
+ obd, &hsm_actions_logops);
+ if (rc) {
+ CERROR("%s: hsm actions llog setup failed: rc = %d\n",
+ obd->obd_name, rc);
+ RETURN(rc);
+ }
- mdd_object_put(env, child);
+ ctxt = llog_get_context(obd, LLOG_AGENT_ORIG_CTXT);
+ LASSERT(ctxt);
-out:
- return rc;
-}
+ rc = llog_open_create(env, ctxt, &ctxt->loc_handle, NULL,
+ HSM_ACTIONS);
+ if (rc) {
+ CERROR("%s: hsm actions llog open_create failed: rc = %d\n",
+ obd->obd_name, rc);
+ GOTO(out_cleanup, rc);
+ }
-static int obf_create(const struct lu_env *env, struct md_object *pobj,
- const struct lu_name *lname, struct md_object *child,
- struct md_op_spec *spec, struct md_attr* ma)
-{
- return -EPERM;
-}
+ rc = llog_cat_init_and_process(env, ctxt->loc_handle);
+ if (rc)
+ GOTO(out_close, rc);
-static int obf_rename(const struct lu_env *env,
- struct md_object *src_pobj, struct md_object *tgt_pobj,
- const struct lu_fid *lf, const struct lu_name *lsname,
- struct md_object *tobj, const struct lu_name *ltname,
- struct md_attr *ma)
-{
- return -EPERM;
-}
+ llog_ctxt_put(ctxt);
+ RETURN(0);
-static int obf_link(const struct lu_env *env, struct md_object *tgt_obj,
- struct md_object *src_obj, const struct lu_name *lname,
- struct md_attr *ma)
-{
- return -EPERM;
-}
+out_close:
+ llog_cat_close(env, ctxt->loc_handle);
+ ctxt->loc_handle = NULL;
+out_cleanup:
+ llog_cleanup(env, ctxt);
-static int obf_unlink(const struct lu_env *env, struct md_object *pobj,
- struct md_object *cobj, const struct lu_name *lname,
- struct md_attr *ma)
-{
- return -EPERM;
+ return rc;
}
-static struct md_dir_operations mdd_obf_dir_ops = {
- .mdo_lookup = obf_lookup,
- .mdo_create = obf_create,
- .mdo_rename = obf_rename,
- .mdo_link = obf_link,
- .mdo_unlink = obf_unlink
-};
-
/**
- * Create special in-memory "fid" object for open-by-fid.
+ * cleanup the context created by llog_setup_named()
*/
-static int mdd_obf_setup(const struct lu_env *env, struct mdd_device *m)
+static int mdd_hsm_actions_llog_fini(const struct lu_env *env,
+ struct mdd_device *m)
{
- struct mdd_object *mdd_obf;
- struct lu_object *obf_lu_obj;
- int rc = 0;
+ struct obd_device *obd = mdd2obd_dev(m);
+ struct llog_ctxt *lctxt;
+ ENTRY;
- m->mdd_dot_lustre_objs.mdd_obf = mdd_object_find(env, m,
- &LU_OBF_FID);
- if (m->mdd_dot_lustre_objs.mdd_obf == NULL ||
- IS_ERR(m->mdd_dot_lustre_objs.mdd_obf))
- GOTO(out, rc = -ENOENT);
+ lctxt = llog_get_context(obd, LLOG_AGENT_ORIG_CTXT);
+ if (lctxt) {
+ llog_cat_close(env, lctxt->loc_handle);
+ lctxt->loc_handle = NULL;
+ llog_cleanup(env, lctxt);
+ }
- mdd_obf = m->mdd_dot_lustre_objs.mdd_obf;
- mdd_obf->mod_obj.mo_dir_ops = &mdd_obf_dir_ops;
- mdd_obf->mod_obj.mo_ops = &mdd_obf_obj_ops;
- /* Don't allow objects to be created in "fid" dir */
- mdd_obf->mod_flags |= IMMUTE_OBJ;
-
- obf_lu_obj = mdd2lu_obj(mdd_obf);
- obf_lu_obj->lo_header->loh_attr |= (LOHA_EXISTS | S_IFDIR);
-
-out:
- return rc;
+ RETURN(0);
}
-/** Setup ".lustre" directory object */
-static int mdd_dot_lustre_setup(const struct lu_env *env, struct mdd_device *m)
+static void mdd_device_shutdown(const struct lu_env *env, struct mdd_device *m,
+ struct lustre_cfg *cfg)
{
- struct dt_object *dt_dot_lustre;
- struct lu_fid *fid = &mdd_env_info(env)->mti_fid;
- int rc;
-
- rc = create_dot_lustre_dir(env, m);
- if (rc)
- return rc;
+ lfsck_degister(env, m->mdd_bottom);
+ mdd_hsm_actions_llog_fini(env, m);
+ mdd_changelog_fini(env, m);
+ orph_index_fini(env, m);
+ mdd_dot_lustre_cleanup(env, m);
+ if (m->mdd_los != NULL)
+ local_oid_storage_fini(env, m->mdd_los);
+ lu_site_purge(env, mdd2lu_dev(m)->ld_site, ~0);
- dt_dot_lustre = dt_store_open(env, m->mdd_child, mdd_root_dir_name,
- dot_lustre_name, fid);
- if (IS_ERR(dt_dot_lustre)) {
- rc = PTR_ERR(dt_dot_lustre);
- GOTO(out, rc);
- }
-
- /* references are released in mdd_device_shutdown() */
- m->mdd_dot_lustre = lu2mdd_obj(lu_object_locate(dt_dot_lustre->do_lu.lo_header,
- &mdd_device_type));
-
- m->mdd_dot_lustre->mod_obj.mo_dir_ops = &mdd_dot_lustre_dir_ops;
- m->mdd_dot_lustre->mod_obj.mo_ops = &mdd_dot_lustre_obj_ops;
-
- rc = mdd_obf_setup(env, m);
- if (rc)
- CERROR("Error initializing \"fid\" object - %d.\n", rc);
-
-out:
- RETURN(rc);
+ if (m->mdd_child_exp)
+ obd_disconnect(m->mdd_child_exp);
}
static int mdd_process_config(const struct lu_env *env,
rc = next->ld_ops->ldo_process_config(env, next, cfg);
if (rc)
GOTO(out, rc);
- dt->dd_ops->dt_conf_get(env, dt, &m->mdd_dt_conf);
-
- rc = mdd_init_obd(env, m, cfg);
- if (rc) {
- CERROR("lov init error %d \n", rc);
- GOTO(out, rc);
- }
- rc = mdd_txn_init_credits(env, m);
- if (rc)
- break;
-
- mdd_changelog_init(env, m);
+ dt_conf_get(env, dt, &m->mdd_dt_conf);
break;
case LCFG_CLEANUP:
- mdd_device_shutdown(env, m, cfg);
+ rc = next->ld_ops->ldo_process_config(env, next, cfg);
+ lu_dev_del_linkage(d->ld_site, d);
+ mdd_device_shutdown(env, m, cfg);
+ break;
default:
rc = next->ld_ops->ldo_process_config(env, next, cfg);
break;
RETURN(rc);
}
-#if 0
-static int mdd_lov_set_nextid(const struct lu_env *env,
- struct mdd_device *mdd)
-{
- struct mds_obd *mds = &mdd->mdd_obd_dev->u.mds;
- int rc;
- ENTRY;
-
- LASSERT(mds->mds_lov_objids != NULL);
- rc = obd_set_info_async(mds->mds_lov_exp, strlen(KEY_NEXT_ID),
- KEY_NEXT_ID, mds->mds_lov_desc.ld_tgt_count,
- mds->mds_lov_objids, NULL);
-
- RETURN(rc);
-}
-
-static int mdd_cleanup_unlink_llog(const struct lu_env *env,
- struct mdd_device *mdd)
-{
- /* XXX: to be implemented! */
- return 0;
-}
-#endif
-
static int mdd_recovery_complete(const struct lu_env *env,
struct lu_device *d)
{
struct mdd_device *mdd = lu2mdd_dev(d);
- struct lu_device *next = &mdd->mdd_child->dd_lu_dev;
- struct obd_device *obd = mdd2obd_dev(mdd);
+ struct lu_device *next;
int rc;
ENTRY;
LASSERT(mdd != NULL);
- LASSERT(obd != NULL);
-#if 0
- /* XXX: Do we need this in new stack? */
- rc = mdd_lov_set_nextid(env, mdd);
- if (rc) {
- CERROR("mdd_lov_set_nextid() failed %d\n",
- rc);
- RETURN(rc);
- }
-
- /* XXX: cleanup unlink. */
- rc = mdd_cleanup_unlink_llog(env, mdd);
- if (rc) {
- CERROR("mdd_cleanup_unlink_llog() failed %d\n",
- rc);
- RETURN(rc);
- }
-#endif
- /* Call that with obd_recovering = 1 just to update objids */
- obd_notify(obd->u.mds.mds_lov_obd, NULL, (obd->obd_async_recov ?
- OBD_NOTIFY_SYNC_NONBLOCK : OBD_NOTIFY_SYNC), NULL);
-
- /* Drop obd_recovering to 0 and call o_postrecov to recover mds_lov */
- cfs_spin_lock(&obd->obd_dev_lock);
- obd->obd_recovering = 0;
- cfs_spin_unlock(&obd->obd_dev_lock);
- obd->obd_type->typ_dt_ops->o_postrecov(obd);
+ next = &mdd->mdd_child->dd_lu_dev;
/* XXX: orphans handling. */
__mdd_orphan_cleanup(env, mdd);
RETURN(rc);
}
-static int mdd_prepare(const struct lu_env *env,
- struct lu_device *pdev,
- struct lu_device *cdev)
+int mdd_local_file_create(const struct lu_env *env, struct mdd_device *mdd,
+ const struct lu_fid *pfid, const char *name, __u32 mode,
+ struct lu_fid *fid)
{
- struct mdd_device *mdd = lu2mdd_dev(cdev);
- struct lu_device *next = &mdd->mdd_child->dd_lu_dev;
- struct dt_object *root;
- int rc;
+ struct dt_object *parent, *dto;
+ int rc;
- ENTRY;
- rc = next->ld_ops->ldo_prepare(env, cdev, next);
- if (rc)
- GOTO(out, rc);
+ ENTRY;
- dt_txn_callback_add(mdd->mdd_child, &mdd->mdd_txn_cb);
- root = dt_store_open(env, mdd->mdd_child, "", mdd_root_dir_name,
- &mdd->mdd_root_fid);
- if (!IS_ERR(root)) {
- LASSERT(root != NULL);
- lu_object_put(env, &root->do_lu);
- rc = orph_index_init(env, mdd);
- } else {
- rc = PTR_ERR(root);
- }
- if (rc)
- GOTO(out, rc);
+ LASSERT(!fid_is_zero(pfid));
+ parent = dt_locate(env, mdd->mdd_bottom, pfid);
+ if (unlikely(IS_ERR(parent)))
+ RETURN(PTR_ERR(parent));
- rc = mdd_dot_lustre_setup(env, mdd);
- if (rc) {
- CERROR("Error(%d) initializing .lustre objects\n", rc);
- GOTO(out, rc);
- }
+ /* create local file/dir, if @fid is passed then try to use it */
+ if (fid_is_zero(fid))
+ dto = local_file_find_or_create(env, mdd->mdd_los, parent,
+ name, mode);
+ else
+ dto = local_file_find_or_create_with_fid(env, mdd->mdd_bottom,
+ fid, parent, name,
+ mode);
+ if (IS_ERR(dto))
+ GOTO(out_put, rc = PTR_ERR(dto));
+ *fid = *lu_object_fid(&dto->do_lu);
+ /* since stack is not fully set up the local_storage uses own stack
+ * and we should drop its object from cache */
+ lu_object_put_nocache(env, &dto->do_lu);
+ EXIT;
+out_put:
+ lu_object_put(env, &parent->do_lu);
+ return 0;
+}
-out:
- RETURN(rc);
+static int mdd_lfsck_out_notify(const struct lu_env *env, void *data,
+ enum lfsck_events event)
+{
+ return 0;
+}
+
+static int mdd_prepare(const struct lu_env *env,
+ struct lu_device *pdev,
+ struct lu_device *cdev)
+{
+ struct mdd_device *mdd = lu2mdd_dev(cdev);
+ struct lu_device *next = &mdd->mdd_child->dd_lu_dev;
+ struct lu_fid fid;
+ int rc;
+
+ ENTRY;
+
+ rc = next->ld_ops->ldo_prepare(env, cdev, next);
+ if (rc)
+ RETURN(rc);
+
+ /* Setup local dirs */
+ fid.f_seq = FID_SEQ_LOCAL_NAME;
+ fid.f_oid = 1;
+ fid.f_ver = 0;
+ rc = local_oid_storage_init(env, mdd->mdd_bottom, &fid,
+ &mdd->mdd_los);
+ if (rc)
+ RETURN(rc);
+
+ rc = dt_root_get(env, mdd->mdd_child, &mdd->mdd_local_root_fid);
+ if (rc < 0)
+ GOTO(out_los, rc);
+
+ lu_root_fid(&fid);
+ if (mdd_seq_site(mdd)->ss_node_id == 0) {
+ rc = mdd_local_file_create(env, mdd, &mdd->mdd_local_root_fid,
+ mdd_root_dir_name, S_IFDIR |
+ S_IRUGO | S_IWUSR | S_IXUGO, &fid);
+ if (rc != 0) {
+ CERROR("%s: create root fid failed: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name, rc);
+ GOTO(out_los, rc);
+ }
+
+ mdd->mdd_root_fid = fid;
+ rc = mdd_dot_lustre_setup(env, mdd);
+ if (rc != 0) {
+ CERROR("%s: initializing .lustre failed: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name, rc);
+ GOTO(out_los, rc);
+ }
+
+ rc = mdd_compat_fixes(env, mdd);
+ if (rc != 0)
+ GOTO(out_dot, rc);
+ } else {
+ /* Normal client usually send root access to MDT0 directly,
+ * the root FID on non-MDT0 will only be used by echo client. */
+ mdd->mdd_root_fid = fid;
+ }
+
+ rc = orph_index_init(env, mdd);
+ if (rc < 0)
+ GOTO(out_dot, rc);
+
+ rc = mdd_changelog_init(env, mdd);
+ if (rc != 0) {
+ CERROR("%s: failed to initialize changelog: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name, rc);
+ GOTO(out_orph, rc);
+ }
+
+ rc = mdd_hsm_actions_llog_init(env, mdd);
+ if (rc != 0)
+ GOTO(out_changelog, rc);
+
+ rc = lfsck_register(env, mdd->mdd_bottom, mdd->mdd_child,
+ mdd2obd_dev(mdd), mdd_lfsck_out_notify,
+ mdd, true);
+ if (rc != 0) {
+ CERROR("%s: failed to initialize lfsck: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name, rc);
+ GOTO(out_hsm, rc);
+ }
+ RETURN(0);
+out_hsm:
+ mdd_hsm_actions_llog_fini(env, mdd);
+out_changelog:
+ mdd_changelog_fini(env, mdd);
+out_orph:
+ orph_index_fini(env, mdd);
+out_dot:
+ if (mdd_seq_site(mdd)->ss_node_id == 0)
+ mdd_dot_lustre_cleanup(env, mdd);
+out_los:
+ local_oid_storage_fini(env, mdd->mdd_los);
+ mdd->mdd_los = NULL;
+
+ return rc;
}
const struct lu_device_operations mdd_lu_ops = {
.ldo_prepare = mdd_prepare,
};
-/*
- * No permission check is needed.
- */
static int mdd_root_get(const struct lu_env *env,
- struct md_device *m, struct lu_fid *f)
+ struct md_device *m, struct lu_fid *f)
{
- struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
+ struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
- ENTRY;
- *f = mdd->mdd_root_fid;
- RETURN(0);
+ ENTRY;
+ *f = mdd->mdd_root_fid;
+ RETURN(0);
}
/*
* No permission check is needed.
*/
static int mdd_statfs(const struct lu_env *env, struct md_device *m,
- cfs_kstatfs_t *sfs)
+ struct obd_statfs *sfs)
{
- struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
- int rc;
+ struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
+ int rc;
- ENTRY;
+ ENTRY;
- rc = mdd_child_ops(mdd)->dt_statfs(env, mdd->mdd_child, sfs);
+ rc = mdd_child_ops(mdd)->dt_statfs(env, mdd->mdd_child, sfs);
- RETURN(rc);
+ sfs->os_namelen = min_t(__u32, sfs->os_namelen, NAME_MAX);
+
+ RETURN(rc);
}
/*
* No permission check is needed.
*/
-static int mdd_maxsize_get(const struct lu_env *env, struct md_device *m,
- int *md_size, int *cookie_size)
-{
- struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
- ENTRY;
-
- *md_size = mdd_lov_mdsize(env, mdd);
- *cookie_size = mdd_lov_cookiesize(env, mdd);
-
- RETURN(0);
-}
-
static int mdd_init_capa_ctxt(const struct lu_env *env, struct md_device *m,
int mode, unsigned long timeout, __u32 alg,
struct lustre_capa_key *keys)
{
struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
- struct mds_obd *mds = &mdd2obd_dev(mdd)->u.mds;
int rc;
ENTRY;
/* need barrier for mds_capa_keys access. */
- cfs_down_write(&mds->mds_notify_lock);
- mds->mds_capa_keys = keys;
- cfs_up_write(&mds->mds_notify_lock);
rc = mdd_child_ops(mdd)->dt_init_capa_ctxt(env, mdd->mdd_child, mode,
timeout, alg, keys);
RETURN(rc);
}
+static int mdd_maxeasize_get(const struct lu_env *env, struct md_device *m,
+ int *easize)
+{
+ struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
+ ENTRY;
+
+ *easize = mdd->mdd_dt_conf.ddp_max_ea_size;
+
+ RETURN(0);
+}
+
static int mdd_update_capa_key(const struct lu_env *env,
struct md_device *m,
struct lustre_capa_key *key)
{
- struct mds_capa_info info = { .uuid = NULL, .capa = key };
- struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
- struct obd_export *lov_exp = mdd2obd_dev(mdd)->u.mds.mds_lov_exp;
- int rc;
- ENTRY;
-
- rc = obd_set_info_async(lov_exp, sizeof(KEY_CAPA_KEY), KEY_CAPA_KEY,
- sizeof(info), &info, NULL);
- RETURN(rc);
+ /* we do not support capabilities ... */
+ return -EINVAL;
}
static int mdd_llog_ctxt_get(const struct lu_env *env, struct md_device *m,
return (*h == NULL ? -ENOENT : 0);
}
+static struct lu_device *mdd_device_free(const struct lu_env *env,
+ struct lu_device *lu)
+{
+ struct mdd_device *m = lu2mdd_dev(lu);
+ ENTRY;
+
+ LASSERT(atomic_read(&lu->ld_ref) == 0);
+ md_device_fini(&m->mdd_md_dev);
+ OBD_FREE_PTR(m);
+ RETURN(NULL);
+}
+
static struct lu_device *mdd_device_alloc(const struct lu_env *env,
struct lu_device_type *t,
struct lustre_cfg *lcfg)
if (m == NULL) {
l = ERR_PTR(-ENOMEM);
} else {
- md_device_init(&m->mdd_md_dev, t);
+ int rc;
+
l = mdd2lu_dev(m);
- l->ld_ops = &mdd_lu_ops;
- m->mdd_md_dev.md_ops = &mdd_ops;
- md_upcall_init(&m->mdd_md_dev, NULL);
+ md_device_init(&m->mdd_md_dev, t);
+ rc = mdd_init0(env, m, t, lcfg);
+ if (rc != 0) {
+ mdd_device_free(env, l);
+ l = ERR_PTR(rc);
+ }
}
return l;
}
-static struct lu_device *mdd_device_free(const struct lu_env *env,
- struct lu_device *lu)
+/*
+ * we use exports to track all mdd users
+ */
+static int mdd_obd_connect(const struct lu_env *env, struct obd_export **exp,
+ struct obd_device *obd, struct obd_uuid *cluuid,
+ struct obd_connect_data *data, void *localdata)
{
- struct mdd_device *m = lu2mdd_dev(lu);
- struct lu_device *next = &m->mdd_child->dd_lu_dev;
- ENTRY;
+ struct mdd_device *mdd = lu2mdd_dev(obd->obd_lu_dev);
+ struct lustre_handle conn;
+ int rc;
+ ENTRY;
- LASSERT(cfs_atomic_read(&lu->ld_ref) == 0);
- md_device_fini(&m->mdd_md_dev);
- OBD_FREE_PTR(m);
- RETURN(next);
-}
+ CDEBUG(D_CONFIG, "connect #%d\n", mdd->mdd_connects);
-static struct obd_ops mdd_obd_device_ops = {
- .o_owner = THIS_MODULE
-};
+ rc = class_connect(&conn, obd, cluuid);
+ if (rc)
+ RETURN(rc);
-/* context key constructor/destructor: mdd_ucred_key_init, mdd_ucred_key_fini */
-LU_KEY_INIT_FINI(mdd_ucred, struct md_ucred);
+ *exp = class_conn2export(&conn);
-static struct lu_context_key mdd_ucred_key = {
- .lct_tags = LCT_SESSION,
- .lct_init = mdd_ucred_key_init,
- .lct_fini = mdd_ucred_key_fini
-};
+ /* Why should there ever be more than 1 connect? */
+ LASSERT(mdd->mdd_connects == 0);
+ mdd->mdd_connects++;
-struct md_ucred *md_ucred(const struct lu_env *env)
-{
- LASSERT(env->le_ses != NULL);
- return lu_context_key_get(env->le_ses, &mdd_ucred_key);
+ RETURN(0);
}
-EXPORT_SYMBOL(md_ucred);
/*
- * context key constructor/destructor:
- * mdd_capainfo_key_init, mdd_capainfo_key_fini
+ * once last export (we don't count self-export) disappeared
+ * mdd can be released
*/
-LU_KEY_INIT_FINI(mdd_capainfo, struct md_capainfo);
+static int mdd_obd_disconnect(struct obd_export *exp)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct mdd_device *mdd = lu2mdd_dev(obd->obd_lu_dev);
+ int rc, release = 0;
+ ENTRY;
-struct lu_context_key mdd_capainfo_key = {
- .lct_tags = LCT_SESSION,
- .lct_init = mdd_capainfo_key_init,
- .lct_fini = mdd_capainfo_key_fini
-};
+ mdd->mdd_connects--;
+ if (mdd->mdd_connects == 0)
+ release = 1;
-struct md_capainfo *md_capainfo(const struct lu_env *env)
-{
- /* NB, in mdt_init0 */
- if (env->le_ses == NULL)
- return NULL;
- return lu_context_key_get(env->le_ses, &mdd_capainfo_key);
+ rc = class_disconnect(exp);
+
+ if (rc == 0 && release)
+ class_manual_cleanup(obd);
+ RETURN(rc);
}
-EXPORT_SYMBOL(md_capainfo);
-/*
- * context key constructor/destructor:
- * mdd_quota_key_init, mdd_quota_key_fini
- */
-LU_KEY_INIT_FINI(mdd_quota, struct md_quota);
+static int mdd_obd_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;
-struct lu_context_key mdd_quota_key = {
- .lct_tags = LCT_SESSION,
- .lct_init = mdd_quota_key_init,
- .lct_fini = mdd_quota_key_fini
-};
+ if (KEY_IS(KEY_OSP_CONNECTED)) {
+ struct obd_device *obd = exp->exp_obd;
+ struct mdd_device *mdd;
-struct md_quota *md_quota(const struct lu_env *env)
-{
- LASSERT(env->le_ses != NULL);
- return lu_context_key_get(env->le_ses, &mdd_quota_key);
+ if (!obd->obd_set_up || obd->obd_stopping)
+ RETURN(-EAGAIN);
+
+ mdd = lu2mdd_dev(obd->obd_lu_dev);
+ LASSERT(mdd);
+ rc = obd_get_info(env, mdd->mdd_child_exp, keylen, key, vallen,
+ val, lsm);
+ RETURN(rc);
+ }
+
+ RETURN(rc);
}
-EXPORT_SYMBOL(md_quota);
-static int mdd_changelog_user_register(struct mdd_device *mdd, int *id)
+static struct obd_ops mdd_obd_device_ops = {
+ .o_owner = THIS_MODULE,
+ .o_connect = mdd_obd_connect,
+ .o_disconnect = mdd_obd_disconnect,
+ .o_get_info = mdd_obd_get_info,
+};
+
+static int mdd_changelog_user_register(const struct lu_env *env,
+ struct mdd_device *mdd, int *id)
{
struct llog_ctxt *ctxt;
struct llog_changelog_user_rec *rec;
int rc;
ENTRY;
- ctxt = llog_get_context(mdd2obd_dev(mdd),LLOG_CHANGELOG_USER_ORIG_CTXT);
+ ctxt = llog_get_context(mdd2obd_dev(mdd),
+ LLOG_CHANGELOG_USER_ORIG_CTXT);
if (ctxt == NULL)
RETURN(-ENXIO);
}
/* Assume we want it on since somebody registered */
- rc = mdd_changelog_on(mdd, 1);
+ rc = mdd_changelog_on(env, mdd, 1);
if (rc)
GOTO(out, rc);
rec->cur_hdr.lrh_len = sizeof(*rec);
rec->cur_hdr.lrh_type = CHANGELOG_USER_REC;
- cfs_spin_lock(&mdd->mdd_cl.mc_user_lock);
- if (mdd->mdd_cl.mc_lastuser == (unsigned int)(-1)) {
- cfs_spin_unlock(&mdd->mdd_cl.mc_user_lock);
- CERROR("Maximum number of changelog users exceeded!\n");
- GOTO(out, rc = -EOVERFLOW);
- }
- *id = rec->cur_id = ++mdd->mdd_cl.mc_lastuser;
- rec->cur_endrec = mdd->mdd_cl.mc_index;
- cfs_spin_unlock(&mdd->mdd_cl.mc_user_lock);
-
- rc = llog_add(ctxt, &rec->cur_hdr, NULL, NULL, 0);
+ spin_lock(&mdd->mdd_cl.mc_user_lock);
+ if (mdd->mdd_cl.mc_lastuser == (unsigned int)(-1)) {
+ spin_unlock(&mdd->mdd_cl.mc_user_lock);
+ CERROR("Maximum number of changelog users exceeded!\n");
+ GOTO(out, rc = -EOVERFLOW);
+ }
+ *id = rec->cur_id = ++mdd->mdd_cl.mc_lastuser;
+ rec->cur_endrec = mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_user_lock);
+
+ rc = llog_cat_add(env, ctxt->loc_handle, &rec->cur_hdr, NULL, NULL);
CDEBUG(D_IOCTL, "Registered changelog user %d\n", *id);
out:
__u32 mcud_id;
__u32 mcud_minid; /**< user id with lowest rec reference */
__u32 mcud_usercount;
- int mcud_found:1;
+ unsigned int mcud_found:1;
};
#define MCUD_UNREGISTER -1LL
* 1. Find the smallest record everyone is willing to purge
* 2. Update the last purgeable record for this user
*/
-static int mdd_changelog_user_purge_cb(struct llog_handle *llh,
- struct llog_rec_hdr *hdr, void *data)
+static int mdd_changelog_user_purge_cb(const struct lu_env *env,
+ struct llog_handle *llh,
+ struct llog_rec_hdr *hdr, void *data)
{
- struct llog_changelog_user_rec *rec;
- struct mdd_changelog_user_data *mcud =
- (struct mdd_changelog_user_data *)data;
- int rc;
+ struct llog_changelog_user_rec *rec;
+ struct mdd_changelog_user_data *mcud = data;
+ int rc;
+
ENTRY;
LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
/* Special case: unregister this user */
if (mcud->mcud_endrec == MCUD_UNREGISTER) {
struct llog_cookie cookie;
+
cookie.lgc_lgl = llh->lgh_id;
cookie.lgc_index = hdr->lrh_index;
- rc = llog_cat_cancel_records(llh->u.phd.phd_cat_handle,
- 1, &cookie);
+
+ rc = llog_cat_cancel_records(env, llh->u.phd.phd_cat_handle,
+ 1, &cookie);
if (rc == 0)
mcud->mcud_usercount--;
+
RETURN(rc);
}
/* hdr+1 is loc of data */
hdr->lrh_len -= sizeof(*hdr) + sizeof(struct llog_rec_tail);
- rc = llog_write_rec(llh, hdr, NULL, 0, (void *)(hdr + 1),
- hdr->lrh_index);
+ rc = llog_write(env, llh, hdr, NULL, 0, (void *)(hdr + 1),
+ hdr->lrh_index);
RETURN(rc);
}
-static int mdd_changelog_user_purge(struct mdd_device *mdd, int id,
+static int mdd_changelog_user_purge(const struct lu_env *env,
+ struct mdd_device *mdd, int id,
long long endrec)
{
struct mdd_changelog_user_data data;
data.mcud_minrec = 0;
data.mcud_usercount = 0;
data.mcud_endrec = endrec;
- cfs_spin_lock(&mdd->mdd_cl.mc_lock);
- endrec = mdd->mdd_cl.mc_index;
- cfs_spin_unlock(&mdd->mdd_cl.mc_lock);
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ endrec = mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
if ((data.mcud_endrec == 0) ||
((data.mcud_endrec > endrec) &&
(data.mcud_endrec != MCUD_UNREGISTER)))
data.mcud_endrec = endrec;
- ctxt = llog_get_context(mdd2obd_dev(mdd),LLOG_CHANGELOG_USER_ORIG_CTXT);
+ ctxt = llog_get_context(mdd2obd_dev(mdd),
+ LLOG_CHANGELOG_USER_ORIG_CTXT);
if (ctxt == NULL)
return -ENXIO;
+
LASSERT(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT);
- rc = llog_cat_process(ctxt->loc_handle, mdd_changelog_user_purge_cb,
- (void *)&data, 0, 0);
+ rc = llog_cat_process(env, ctxt->loc_handle,
+ mdd_changelog_user_purge_cb, (void *)&data,
+ 0, 0);
if ((rc >= 0) && (data.mcud_minrec > 0)) {
CDEBUG(D_IOCTL, "Purging changelog entries up to "LPD64
", referenced by "CHANGELOG_USER_PREFIX"%d\n",
data.mcud_minrec, data.mcud_minid);
- rc = mdd_changelog_llog_cancel(mdd, data.mcud_minrec);
+ rc = mdd_changelog_llog_cancel(env, mdd, data.mcud_minrec);
} else {
CWARN("Could not determine changelog records to purge; rc=%d\n",
rc);
if (!rc && data.mcud_usercount == 0)
/* No more users; turn changelogs off */
- rc = mdd_changelog_on(mdd, 0);
+ rc = mdd_changelog_on(env, mdd, 0);
RETURN (rc);
}
mdd = lu2mdd_dev(&m->md_lu_dev);
/* Doesn't use obd_ioctl_data */
- if (cmd == OBD_IOC_CHANGELOG_CLEAR) {
+ switch (cmd) {
+ case OBD_IOC_CHANGELOG_CLEAR: {
struct changelog_setinfo *cs = karg;
- rc = mdd_changelog_user_purge(mdd, cs->cs_id, cs->cs_recno);
+ rc = mdd_changelog_user_purge(env, mdd, cs->cs_id,
+ cs->cs_recno);
RETURN(rc);
}
+ case OBD_IOC_GET_MNTOPT: {
+ mntopt_t *mntopts = (mntopt_t *)karg;
+ *mntopts = mdd->mdd_dt_conf.ddp_mntopts;
+ RETURN(0);
+ }
+ case OBD_IOC_START_LFSCK: {
+ rc = lfsck_start(env, mdd->mdd_bottom,
+ (struct lfsck_start_param *)karg);
+ RETURN(rc);
+ }
+ case OBD_IOC_STOP_LFSCK: {
+ rc = lfsck_stop(env, mdd->mdd_bottom,
+ (struct lfsck_stop *)karg);
+ RETURN(rc);
+ }
+ }
/* Below ioctls use obd_ioctl_data */
if (len != sizeof(*data)) {
switch (cmd) {
case OBD_IOC_CHANGELOG_REG:
- rc = mdd_changelog_user_register(mdd, &data->ioc_u32_1);
+ rc = mdd_changelog_user_register(env, mdd, &data->ioc_u32_1);
break;
case OBD_IOC_CHANGELOG_DEREG:
- rc = mdd_changelog_user_purge(mdd, data->ioc_u32_1,
+ rc = mdd_changelog_user_purge(env, mdd, data->ioc_u32_1,
MCUD_UNREGISTER);
break;
default:
- rc = -EOPNOTSUPP;
+ rc = -ENOTTY;
}
RETURN (rc);
}
/* type constructor/destructor: mdd_type_init, mdd_type_fini */
-LU_TYPE_INIT_FINI(mdd, &mdd_thread_key, &mdd_ucred_key, &mdd_capainfo_key,
- &mdd_quota_key);
+LU_TYPE_INIT_FINI(mdd, &mdd_thread_key);
const struct md_device_operations mdd_ops = {
- .mdo_statfs = mdd_statfs,
- .mdo_root_get = mdd_root_get,
- .mdo_maxsize_get = mdd_maxsize_get,
- .mdo_init_capa_ctxt = mdd_init_capa_ctxt,
- .mdo_update_capa_key= mdd_update_capa_key,
- .mdo_llog_ctxt_get = mdd_llog_ctxt_get,
- .mdo_iocontrol = mdd_iocontrol,
-#ifdef HAVE_QUOTA_SUPPORT
- .mdo_quota = {
- .mqo_notify = mdd_quota_notify,
- .mqo_setup = mdd_quota_setup,
- .mqo_cleanup = mdd_quota_cleanup,
- .mqo_recovery = mdd_quota_recovery,
- .mqo_check = mdd_quota_check,
- .mqo_on = mdd_quota_on,
- .mqo_off = mdd_quota_off,
- .mqo_setinfo = mdd_quota_setinfo,
- .mqo_getinfo = mdd_quota_getinfo,
- .mqo_setquota = mdd_quota_setquota,
- .mqo_getquota = mdd_quota_getquota,
- .mqo_getoinfo = mdd_quota_getoinfo,
- .mqo_getoquota = mdd_quota_getoquota,
- .mqo_invalidate = mdd_quota_invalidate,
- .mqo_finvalidate = mdd_quota_finvalidate
- }
-#endif
+ .mdo_statfs = mdd_statfs,
+ .mdo_root_get = mdd_root_get,
+ .mdo_init_capa_ctxt = mdd_init_capa_ctxt,
+ .mdo_update_capa_key= mdd_update_capa_key,
+ .mdo_llog_ctxt_get = mdd_llog_ctxt_get,
+ .mdo_iocontrol = mdd_iocontrol,
+ .mdo_maxeasize_get = mdd_maxeasize_get,
};
static struct lu_device_type_operations mdd_device_type_ops = {
.ldto_device_alloc = mdd_device_alloc,
.ldto_device_free = mdd_device_free,
- .ldto_device_init = mdd_device_init,
.ldto_device_fini = mdd_device_fini
};
struct lu_context_key *key, void *data)
{
struct mdd_thread_info *info = data;
- if (info->mti_max_lmm != NULL)
- OBD_FREE(info->mti_max_lmm, info->mti_max_lmm_size);
- if (info->mti_max_cookie != NULL)
- OBD_FREE(info->mti_max_cookie, info->mti_max_cookie_size);
- mdd_buf_put(&info->mti_big_buf);
+
+ lu_buf_free(&info->mti_big_buf);
+ lu_buf_free(&info->mti_link_buf);
OBD_FREE_PTR(info);
}
/* context key: mdd_thread_key */
LU_CONTEXT_KEY_DEFINE(mdd, LCT_MD_THREAD);
-static struct lu_local_obj_desc llod_capa_key = {
- .llod_name = CAPA_KEYS,
- .llod_oid = MDD_CAPA_KEYS_OID,
- .llod_is_index = 0,
-};
+static int __init mdd_mod_init(void)
+{
+ struct lprocfs_static_vars lvars;
+ int rc;
-static struct lu_local_obj_desc llod_mdd_orphan = {
- .llod_name = orph_index_name,
- .llod_oid = MDD_ORPHAN_OID,
- .llod_is_index = 1,
- .llod_feat = &dt_directory_features,
-};
+ lprocfs_mdd_init_vars(&lvars);
-static struct lu_local_obj_desc llod_mdd_root = {
- .llod_name = mdd_root_dir_name,
- .llod_oid = MDD_ROOT_INDEX_OID,
- .llod_is_index = 1,
- .llod_feat = &dt_directory_features,
-};
+ rc = lu_kmem_init(mdd_caches);
+ if (rc)
+ return rc;
-static int __init mdd_mod_init(void)
-{
- struct lprocfs_static_vars lvars;
- lprocfs_mdd_init_vars(&lvars);
+ changelog_orig_logops = llog_osd_ops;
+ changelog_orig_logops.lop_cancel = llog_changelog_cancel;
+ changelog_orig_logops.lop_add = llog_cat_add_rec;
+ changelog_orig_logops.lop_declare_add = llog_cat_declare_add_rec;
- llo_local_obj_register(&llod_capa_key);
- llo_local_obj_register(&llod_mdd_orphan);
- llo_local_obj_register(&llod_mdd_root);
+ hsm_actions_logops = llog_osd_ops;
+ hsm_actions_logops.lop_add = llog_cat_add_rec;
+ hsm_actions_logops.lop_declare_add = llog_cat_declare_add_rec;
- return class_register_type(&mdd_obd_device_ops, NULL, lvars.module_vars,
- LUSTRE_MDD_NAME, &mdd_device_type);
+ rc = class_register_type(&mdd_obd_device_ops, NULL, NULL,
+#ifndef HAVE_ONLY_PROCFS_SEQ
+ lvars.module_vars,
+#endif
+ LUSTRE_MDD_NAME, &mdd_device_type);
+ if (rc)
+ lu_kmem_fini(mdd_caches);
+ return rc;
}
static void __exit mdd_mod_exit(void)
{
- llo_local_obj_unregister(&llod_capa_key);
- llo_local_obj_unregister(&llod_mdd_orphan);
- llo_local_obj_unregister(&llod_mdd_root);
-
- class_unregister_type(LUSTRE_MDD_NAME);
+ class_unregister_type(LUSTRE_MDD_NAME);
+ lu_kmem_fini(mdd_caches);
}
MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
git://git.whamcloud.com / fs / lustre-release.git / blobdiff