*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2016, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_MDS
#include <linux/module.h>
+#include <linux/kthread.h>
#include <obd_class.h>
+#include <uapi/linux/lustre/lustre_ioctl.h>
#include <lustre_mds.h>
#include <obd_support.h>
#include <lu_object.h>
-#include <lustre_param.h>
+#include <uapi/linux/lustre/lustre_param.h>
#include <lustre_fid.h>
+#include <lustre_nodemap.h>
+#include <lustre_barrier.h>
#include "mdd_internal.h"
-const struct md_device_operations mdd_ops;
+static const struct md_device_operations mdd_ops;
static struct lu_device_type mdd_device_type;
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 */
-cfs_mem_cache_t *mdd_object_kmem;
+struct kmem_cache *mdd_object_kmem;
static struct lu_kmem_descr mdd_caches[] = {
{
static int mdd_init0(const struct lu_env *env, struct mdd_device *mdd,
struct lu_device_type *t, struct lustre_cfg *lcfg)
{
- int rc;
+ int rc = -EINVAL;
+ const char *dev;
ENTRY;
+ /* LU-8040 Set defaults here, before values configs */
+ mdd->mdd_cl.mc_flags = 0; /* off by default */
+ mdd->mdd_cl.mc_mask = CHANGELOG_DEFMASK;
+
+ dev = lustre_cfg_string(lcfg, 0);
+ if (dev == NULL)
+ RETURN(rc);
+
+ mdd->mdd_md_dev.md_lu_dev.ld_obd = class_name2obd(dev);
+ if (mdd->mdd_md_dev.md_lu_dev.ld_obd == NULL)
+ RETURN(rc);
mdd->mdd_md_dev.md_lu_dev.ld_ops = &mdd_lu_ops;
mdd->mdd_md_dev.md_ops = &mdd_ops;
rc = mdd_connect_to_next(env, mdd, lustre_cfg_string(lcfg, 3));
- if (rc)
+ if (rc != 0)
RETURN(rc);
mdd->mdd_atime_diff = MAX_ATIME_DIFF;
- /* sync permission changes */
- mdd->mdd_sync_permission = 1;
+ /* sync permission changes */
+ mdd->mdd_sync_permission = 1;
+ /* enable changelog garbage collection */
+ mdd->mdd_changelog_gc = 1;
+ /* with a significant amount of idle time */
+ mdd->mdd_changelog_max_idle_time = CHLOG_MAX_IDLE_TIME;
+ /* or a significant amount of late indexes */
+ mdd->mdd_changelog_max_idle_indexes = CHLOG_MAX_IDLE_INDEXES;
+ /* with a reasonable interval between each check */
+ mdd->mdd_changelog_min_gc_interval = CHLOG_MIN_GC_INTERVAL;
+ /* with a very few number of free entries */
+ mdd->mdd_changelog_min_free_cat_entries = CHLOG_MIN_FREE_CAT_ENTRIES;
dt_conf_get(env, mdd->mdd_child, &mdd->mdd_dt_conf);
static struct lu_device *mdd_device_fini(const struct lu_env *env,
struct lu_device *d)
{
- struct mdd_device *mdd = lu2mdd_dev(d);
- int rc;
+ struct mdd_device *mdd = lu2mdd_dev(d);
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);
- }
+ mdd_procfs_fini(mdd);
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)
-{
- ENTRY;
- 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);
- orph_index_fini(env, m);
- if (m->mdd_capa != NULL) {
- lu_object_put(env, &m->mdd_capa->do_lu);
- m->mdd_capa = NULL;
- }
- lu_site_purge(env, m->mdd_md_dev.md_lu_dev.ld_site, -1);
- /* remove upcall device*/
- md_upcall_fini(&m->mdd_md_dev);
-
- if (m->mdd_child_exp)
- obd_disconnect(m->mdd_child_exp);
-
- EXIT;
-}
-
static int changelog_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_rec *rec = (struct llog_changelog_rec *)hdr;
+ struct mdd_device *mdd = (struct mdd_device *)data;
+ struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
- 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/%llu t=%x %.*s in log"
+ DFID"\n", hdr->lrh_index, rec->cr_hdr.lrh_index,
+ rec->cr.cr_index, rec->cr.cr_type, rec->cr.cr_namelen,
+ changelog_rec_name(&rec->cr), PFID(&llh->lgh_id.lgl_oi.oi_fid));
- 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(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;
+ struct mdd_device *mdd = (struct mdd_device *)data;
+ struct llog_changelog_user_rec *rec =
+ (struct llog_changelog_user_rec *)hdr;
- LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
- LASSERT(rec->cur_hdr.lrh_type == CHANGELOG_USER_REC);
+ 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);
+ CDEBUG(D_INFO, "seeing user at index %d/%d id=%d endrec=%llu"
+ " in log "DFID"\n", hdr->lrh_index, rec->cur_hdr.lrh_index,
+ rec->cur_id, rec->cur_endrec, PFID(&llh->lgh_id.lgl_oi.oi_fid));
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;
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;
/* 0 or 1 means we're done */
rc = 0;
else
- CERROR("%s: cancel idx %u of catalog "LPX64" rc=%d\n",
+ CERROR("%s: cancel idx %u of catalog "DFID": rc = %d\n",
ctxt->loc_obd->obd_name, cathandle->lgh_last_idx,
- cathandle->lgh_id.lgl_oid, rc);
+ PFID(&cathandle->lgh_id.lgl_oi.oi_fid), 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_write_header(const struct lu_env *env, struct mdd_device *mdd,
+ int markerflags);
+
+static int
+mdd_changelog_on(const struct lu_env *env, struct mdd_device *mdd)
+{
+ int rc = 0;
+
+ if ((mdd->mdd_cl.mc_flags & CLM_ON) != 0)
+ return rc;
+
+ LCONSOLE_INFO("%s: changelog on\n", mdd2obd_dev(mdd)->obd_name);
+ if (mdd->mdd_cl.mc_flags & CLM_ERR) {
+ CERROR("Changelogs cannot be enabled due to error "
+ "condition (see %s log).\n",
+ mdd2obd_dev(mdd)->obd_name);
+ rc = -ESRCH;
+ } else {
+ 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);
+ }
+ return rc;
+}
+
+static int
+mdd_changelog_off(const struct lu_env *env, struct mdd_device *mdd)
+{
+ int rc = 0;
+
+ if ((mdd->mdd_cl.mc_flags & CLM_ON) != CLM_ON)
+ return rc;
+
+ 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;
+}
static int mdd_changelog_llog_init(const struct lu_env *env,
struct mdd_device *mdd)
if (rc)
GOTO(out_cleanup, rc);
- rc = llog_cat_init_and_process(env, ctxt->loc_handle);
+ rc = llog_init_handle(env, ctxt->loc_handle, LLOG_F_IS_CAT, NULL);
if (rc)
GOTO(out_close, rc);
GOTO(out_close, rc);
}
- CDEBUG(D_IOCTL, "changelog starting index="LPU64"\n",
+ CDEBUG(D_IOCTL, "changelog starting index=%llu\n",
mdd->mdd_cl.mc_index);
/* setup user changelog */
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);
+ rc = llog_init_handle(env, uctxt->loc_handle, LLOG_F_IS_CAT, NULL);
if (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);
+ rc = mdd_changelog_on(env, mdd);
if (rc < 0)
GOTO(out_uclose, rc);
}
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;
+ mdd->mdd_cl.mc_starttime = ktime_get();
spin_lock_init(&mdd->mdd_cl.mc_user_lock);
mdd->mdd_cl.mc_lastuser = 0;
}
}
-int mdd_changelog_write_header(const struct lu_env *env,
- struct mdd_device *mdd, int markerflags);
-
-/* Start / stop recording */
-int mdd_changelog_on(const struct lu_env *env, struct mdd_device *mdd, int on)
-{
- int rc = 0;
-
- if ((on == 1) && ((mdd->mdd_cl.mc_flags & CLM_ON) == 0)) {
- LCONSOLE_INFO("%s: changelog on\n", mdd2obd_dev(mdd)->obd_name);
- if (mdd->mdd_cl.mc_flags & CLM_ERR) {
- CERROR("Changelogs cannot be enabled due to error "
- "condition (see %s log).\n",
- mdd2obd_dev(mdd)->obd_name);
- rc = -ESRCH;
- } else {
- 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
* changelog
* \param mdd
* \param endrec
* \retval 0 ok
*/
-int mdd_changelog_llog_cancel(const struct lu_env *env,
- struct mdd_device *mdd, long long endrec)
+static 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;
/* Some records were purged, so reset repeat-access time (so we
record new mtime update records, so users can see a file has been
changed since the last purge) */
- mdd->mdd_cl.mc_starttime = cfs_time_current_64();
+ mdd->mdd_cl.mc_starttime = ktime_get();
- rc = llog_cancel(env, ctxt, NULL, 1, (struct llog_cookie *)&endrec, 0);
+ rc = llog_cancel(env, ctxt, (struct llog_cookie *)&endrec, 0);
out:
llog_ctxt_put(ctxt);
return rc;
ENTRY;
if (mdd->mdd_cl.mc_mask & (1 << CL_MARK)) {
- mdd->mdd_cl.mc_starttime = cfs_time_current_64();
+ mdd->mdd_cl.mc_starttime = ktime_get();
RETURN(0);
}
reclen = llog_data_len(sizeof(*rec) + len);
- buf = mdd_buf_alloc(env, reclen);
+ 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);
+ memcpy(changelog_rec_name(&rec->cr), obd->obd_name, rec->cr.cr_namelen);
/* Status and action flags */
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_len = llog_data_len(changelog_rec_size(&rec->cr) +
+ rec->cr.cr_namelen);
rec->cr_hdr.lrh_type = CHANGELOG_REC;
rec->cr.cr_time = cl_time();
spin_lock(&mdd->mdd_cl.mc_lock);
ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
LASSERT(ctxt);
- rc = llog_cat_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL, NULL);
+ rc = llog_cat_add(env, ctxt->loc_handle, &rec->cr_hdr, NULL);
if (rc > 0)
rc = 0;
llog_ctxt_put(ctxt);
/* assume on or off event; reset repeat-access time */
- mdd->mdd_cl.mc_starttime = cfs_time_current_64();
+ mdd->mdd_cl.mc_starttime = ktime_get();
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)
+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)
{
- struct lu_fid *fid = &mdd_env_info(env)->mti_fid;
- struct md_object *mdo;
- int rc;
+ char *name = (char *)lname->ln_name;
+ struct mdd_device *mdd = mdo2mdd(p);
+ struct mdd_object *child;
+ int rc = 0;
- 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;
+ while (*name == '[')
+ name++;
+
+ sscanf(name, SFID, RFID(f));
+ if (!fid_is_sane(f)) {
+ CWARN("%s: Trying to lookup invalid FID [%s] in %s/%s, FID "
+ "format should be "DFID"\n", mdd2obd_dev(mdd)->obd_name,
+ lname->ln_name, dot_lustre_name, mdd_obf_dir_name,
+ (__u64)FID_SEQ_NORMAL, 1, 0);
+ GOTO(out, rc = -EINVAL);
}
- if (!IS_ERR(mdo))
- lu_object_put(env, &mdo->mo_lu);
+ if (!fid_is_norm(f) && !fid_is_igif(f) && !fid_is_root(f) &&
+ !fid_seq_is_dot(f->f_seq)) {
+ CWARN("%s: Trying to lookup invalid FID "DFID" in %s/%s, "
+ "sequence should be >= %#llx or within [%#llx,"
+ "%#llx].\n", mdd2obd_dev(mdd)->obd_name, PFID(f),
+ dot_lustre_name, mdd_obf_dir_name, (__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 (IS_ERR(child))
+ GOTO(out, rc = PTR_ERR(child));
+ if (mdd_object_exists(child) == 0)
+ rc = -ENOENT;
-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;
-}
+ mdd_object_put(env, child);
-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;
+out:
+ return rc;
}
-static int dot_lustre_mdd_xattr_list(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf)
+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 0;
+ return -EPERM;
}
-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)
+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 -EPERM;
+ return -EPERM;
}
-static int dot_lustre_mdd_xattr_del(const struct lu_env *env,
- struct md_object *obj,
- const char *name)
+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 -EPERM;
+ return -EPERM;
}
-static int dot_lustre_mdd_swap_layouts(const struct lu_env *env,
- struct md_object *obj1,
- struct md_object *obj2,
- __u64 flags)
+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 -EPERM;
}
-static int dot_lustre_mdd_readlink(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf)
-{
- return 0;
-}
+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 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 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_ref_add(const struct lu_env *env,
- struct md_object *obj,
- const struct md_attr *ma)
+static struct md_object *mdo_locate(const struct lu_env *env,
+ struct md_device *md,
+ const struct lu_fid *fid)
{
- return -EPERM;
-}
+ struct lu_object *obj;
+ struct md_object *mdo;
-static int dot_lustre_mdd_ref_del(const struct lu_env *env,
- struct md_object *obj,
- struct md_attr *ma)
-{
- return -EPERM;
+ 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 int dot_lustre_mdd_open(const struct lu_env *env, struct md_object *obj,
- int flags)
+static int mdd_lpf_setup(const struct lu_env *env, struct mdd_device *m)
{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ struct md_object *mdo;
+ struct mdd_object *mdd_lpf;
+ struct lu_fid fid = LU_LPF_FID;
+ int rc;
+ ENTRY;
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count++;
- mdd_write_unlock(env, mdd_obj);
+ 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);
- return 0;
-}
+ mdo = mdo_locate(env, &m->mdd_md_dev, &fid);
+ if (IS_ERR(mdo))
+ RETURN(PTR_ERR(mdo));
-static int dot_lustre_mdd_close(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma, int mode)
-{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ LASSERT(lu_object_exists(&mdo->mo_lu));
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count--;
- mdd_write_unlock(env, mdd_obj);
+ 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;
- return 0;
+ RETURN(0);
}
-static int dot_lustre_mdd_object_sync(const struct lu_env *env,
- struct md_object *obj)
+/**
+ * Create special in-memory "fid" object for open-by-fid.
+ */
+static int mdd_obf_setup(const struct lu_env *env, struct mdd_device *m)
{
- return -ENOSYS;
-}
+ struct md_object *mdo;
+ struct mdd_object *mdd_obf;
+ struct lu_fid fid = LU_OBF_FID;
+ int rc;
-static int dot_lustre_mdd_path(const struct lu_env *env, struct md_object *obj,
- char *path, int pathlen, __u64 *recno, int *linkno)
-{
- return -ENOSYS;
+ 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);
+
+ mdo = mdo_locate(env, &m->mdd_md_dev, &fid);
+ if (IS_ERR(mdo))
+ RETURN(PTR_ERR(mdo));
+
+ LASSERT(lu_object_exists(&mdo->mo_lu));
+
+ 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;
+
+ return 0;
}
-static int dot_file_lock(const struct lu_env *env, struct md_object *obj,
- struct lov_mds_md *lmm, struct ldlm_extent *extent,
- struct lustre_handle *lockh)
+static void mdd_dot_lustre_cleanup(const struct lu_env *env,
+ struct mdd_device *m)
{
- return -ENOSYS;
+ 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 dot_file_unlock(const struct lu_env *env, struct md_object *obj,
- struct lov_mds_md *lmm, struct lustre_handle *lockh)
+/** Setup ".lustre" directory object */
+static int mdd_dot_lustre_setup(const struct lu_env *env, struct mdd_device *m)
{
- return -ENOSYS;
-}
+ struct md_object *mdo;
+ struct lu_fid fid;
+ int rc;
-static struct md_object_operations mdd_dot_lustre_obj_ops = {
- .moo_permission = dot_lustre_mdd_permission,
- .moo_attr_get = mdd_attr_get,
- .moo_attr_set = 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_swap_layouts = dot_lustre_mdd_swap_layouts,
- .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_path = dot_lustre_mdd_path,
- .moo_file_lock = dot_file_lock,
- .moo_file_unlock = dot_file_unlock,
-};
+ 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);
-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)
-{
- if (strcmp(lname->ln_name, mdd_obf_dir_name) == 0) {
- *f = LU_OBF_FID;
- return 0;
+ 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);
}
- return -ENOENT;
-}
-
-static mdl_mode_t dot_lustre_mdd_lock_mode(const struct lu_env *env,
- struct md_object *obj,
- mdl_mode_t mode)
-{
- return MDL_MINMODE;
-}
+ 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);
+ }
-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;
-}
+ RETURN(0);
-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;
-}
+out:
+ mdd_dot_lustre_cleanup(env, m);
-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;
+ return rc;
}
-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;
-}
-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;
-}
+static struct llog_operations hsm_actions_logops;
-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)
+/**
+ * set llog methods and create LLOG_AGENT_ORIG_CTXT llog
+ * object in obd_device
+ */
+static int mdd_hsm_actions_llog_init(const struct lu_env *env,
+ struct mdd_device *m)
{
- return -EPERM;
-}
+ struct obd_device *obd = mdd2obd_dev(m);
+ struct llog_ctxt *ctxt = NULL;
+ int rc;
+ ENTRY;
-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;
-}
+ OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
+ obd->obd_lvfs_ctxt.dt = m->mdd_bottom;
-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;
-}
+ 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);
+ }
+ ctxt = llog_get_context(obd, LLOG_AGENT_ORIG_CTXT);
+ LASSERT(ctxt);
-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,
-};
+ 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_attr_get(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma)
-{
- struct mdd_device *mdd = mdo2mdd(obj);
+ rc = llog_init_handle(env, ctxt->loc_handle, LLOG_F_IS_CAT, NULL);
+ if (rc)
+ GOTO(out_close, rc);
- /* "fid" is a virtual object and hence does not have any "real"
- * attributes. So we reuse attributes of .lustre for "fid" dir */
- return mdd_attr_get(env, &mdd->mdd_dot_lustre->mod_obj, ma);
-}
+ llog_ctxt_put(ctxt);
+ RETURN(0);
-static int obf_attr_set(const struct lu_env *env, struct md_object *obj,
- const 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_xattr_list(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf)
-{
- return 0;
+ return rc;
}
-static int obf_xattr_get(const struct lu_env *env,
- struct md_object *obj, struct lu_buf *buf,
- const char *name)
+/**
+ * cleanup the context created by llog_setup_named()
+ */
+static int mdd_hsm_actions_llog_fini(const struct lu_env *env,
+ struct mdd_device *m)
{
- struct mdd_device *mdd = mdo2mdd(obj);
- struct mdd_object *root;
- int rc = 0;
+ struct obd_device *obd = mdd2obd_dev(m);
+ struct llog_ctxt *lctxt;
+ ENTRY;
- /*
- * .lustre returns default striping which is 'stored'
- * in the root
- */
- if (strcmp(name, XATTR_NAME_LOV) == 0) {
- root = mdd_object_find(env, mdd, &mdd->mdd_local_root_fid);
- if (IS_ERR(root))
- return PTR_ERR(root);
- rc = mdo_xattr_get(env, root, buf, name,
- mdd_object_capa(env, md2mdd_obj(obj)));
- mdd_object_put(env, root);
+ 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);
}
- return rc;
+ RETURN(0);
}
-static int obf_xattr_set(const struct lu_env *env,
- struct md_object *obj,
- const struct lu_buf *buf, const char *name,
- int fl)
+static void mdd_device_shutdown(const struct lu_env *env, struct mdd_device *m,
+ struct lustre_cfg *cfg)
{
- return -EPERM;
-}
+ barrier_deregister(m->mdd_bottom);
+ 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 (mdd2obd_dev(m)->u.obt.obt_nodemap_config_file) {
+ nm_config_file_deregister_tgt(env,
+ mdd2obd_dev(m)->u.obt.obt_nodemap_config_file);
+ mdd2obd_dev(m)->u.obt.obt_nodemap_config_file = NULL;
+ }
+ if (m->mdd_los != NULL) {
+ local_oid_storage_fini(env, m->mdd_los);
+ m->mdd_los = NULL;
+ }
+ lu_site_purge(env, mdd2lu_dev(m)->ld_site, ~0);
-static int obf_xattr_del(const struct lu_env *env,
- struct md_object *obj,
- const char *name)
-{
- return -EPERM;
+ if (m->mdd_child_exp)
+ obd_disconnect(m->mdd_child_exp);
}
-static int obf_mdd_open(const struct lu_env *env, struct md_object *obj,
- int flags)
+static int mdd_process_config(const struct lu_env *env,
+ struct lu_device *d, struct lustre_cfg *cfg)
{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ struct mdd_device *m = lu2mdd_dev(d);
+ struct dt_device *dt = m->mdd_child;
+ struct lu_device *next = &dt->dd_lu_dev;
+ int rc;
+ ENTRY;
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count++;
- mdd_write_unlock(env, mdd_obj);
+ switch (cfg->lcfg_command) {
+ case LCFG_PARAM: {
+ struct obd_device *obd = mdd2obd_dev(m);
- return 0;
+ rc = class_process_proc_param(PARAM_MDD, obd->obd_vars, cfg, m);
+ if (rc > 0 || rc == -ENOSYS)
+ /* we don't understand; pass it on */
+ rc = next->ld_ops->ldo_process_config(env, next, cfg);
+ break;
+ }
+ case LCFG_SETUP:
+ rc = next->ld_ops->ldo_process_config(env, next, cfg);
+ if (rc)
+ GOTO(out, rc);
+ dt_conf_get(env, dt, &m->mdd_dt_conf);
+ break;
+ case LCFG_PRE_CLEANUP:
+ rc = next->ld_ops->ldo_process_config(env, next, cfg);
+ mdd_generic_thread_stop(&m->mdd_orph_cleanup_thread);
+ break;
+ case LCFG_CLEANUP:
+ 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;
+ }
+out:
+ RETURN(rc);
}
-static int obf_mdd_close(const struct lu_env *env, struct md_object *obj,
- struct md_attr *ma, int mode)
+static int mdd_recovery_complete(const struct lu_env *env,
+ struct lu_device *d)
{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
+ struct mdd_device *mdd = lu2mdd_dev(d);
+ struct lu_device *next;
+ int rc;
+ ENTRY;
- mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
- mdd_obj->mod_count--;
- mdd_write_unlock(env, mdd_obj);
+ LASSERT(mdd != NULL);
+ next = &mdd->mdd_child->dd_lu_dev;
- return 0;
-}
+ /* XXX: orphans handling. */
+ if (!mdd->mdd_bottom->dd_rdonly)
+ mdd_orphan_cleanup(env, mdd);
+ rc = next->ld_ops->ldo_recovery_complete(env, next);
-/** 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)
+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)
{
- return -ENOSYS;
-}
+ struct dt_object *parent, *dto;
+ int rc = 0;
-static struct md_object_operations mdd_obf_obj_ops = {
- .moo_attr_get = obf_attr_get,
- .moo_attr_set = obf_attr_set,
- .moo_xattr_list = obf_xattr_list,
- .moo_xattr_get = obf_xattr_get,
- .moo_xattr_set = obf_xattr_set,
- .moo_xattr_del = obf_xattr_del,
- .moo_open = obf_mdd_open,
- .moo_close = obf_mdd_close,
- .moo_readpage = obf_mdd_readpage,
- .moo_path = obf_path
-};
+ ENTRY;
-/**
- * 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 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)
-{
- char *name = (char *)lname->ln_name;
- struct mdd_device *mdd = mdo2mdd(p);
- struct mdd_object *child;
- int rc = 0;
-
- while (*name == '[')
- name++;
-
- 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);
- }
-
- if (!fid_is_norm(f)) {
- CWARN("%s: "DFID" is invalid, sequence should be "
- ">= "LPX64"\n", mdd2obd_dev(mdd)->obd_name, PFID(f),
- (__u64)FID_SEQ_NORMAL);
- GOTO(out, rc = -EINVAL);
- }
-
- /* 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;
-
- mdd_object_put(env, child);
-
-out:
- return 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;
-}
-
-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;
-}
+ LASSERT(!fid_is_zero(pfid));
+ parent = dt_locate(env, mdd->mdd_bottom, pfid);
+ if (unlikely(IS_ERR(parent)))
+ RETURN(PTR_ERR(parent));
-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;
-}
-
-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;
-}
-
-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.
- */
-static int mdd_obf_setup(const struct lu_env *env, struct mdd_device *m)
-{
- struct mdd_object *mdd_obf;
- struct lu_object *obf_lu_obj;
- int rc = 0;
-
- 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);
-
- 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;
-}
-
-/** Setup ".lustre" directory object */
-static int mdd_dot_lustre_setup(const struct lu_env *env, struct mdd_device *m)
-{
- struct dt_object *dt_dot_lustre;
- struct lu_fid *fid = &mdd_env_info(env)->mti_fid;
- int rc;
- ENTRY;
-
- rc = create_dot_lustre_dir(env, m);
- if (rc)
- return rc;
-
- 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);
-}
-
-static int mdd_process_config(const struct lu_env *env,
- struct lu_device *d, struct lustre_cfg *cfg)
-{
- struct mdd_device *m = lu2mdd_dev(d);
- struct dt_device *dt = m->mdd_child;
- struct lu_device *next = &dt->dd_lu_dev;
- int rc;
- ENTRY;
-
- switch (cfg->lcfg_command) {
- case LCFG_PARAM: {
- struct lprocfs_static_vars lvars;
-
- lprocfs_mdd_init_vars(&lvars);
- rc = class_process_proc_param(PARAM_MDD, lvars.obd_vars, cfg,m);
- if (rc > 0 || rc == -ENOSYS)
- /* we don't understand; pass it on */
- rc = next->ld_ops->ldo_process_config(env, next, cfg);
- break;
- }
- case LCFG_SETUP:
- 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);
- break;
- case LCFG_CLEANUP:
- mdd_lfsck_cleanup(env, m);
- mdd_changelog_fini(env, m);
- 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;
- }
-out:
- RETURN(rc);
-}
-
-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;
- int rc;
- ENTRY;
-
- LASSERT(mdd != NULL);
- next = &mdd->mdd_child->dd_lu_dev;
-
- /* XXX: orphans handling. */
- __mdd_orphan_cleanup(env, mdd);
- rc = next->ld_ops->ldo_recovery_complete(env, next);
-
- RETURN(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 */
+ dt_object_put_nocache(env, dto);
+ EXIT;
+out_put:
+ dt_object_put(env, parent);
+ return rc;
}
-static int mdd_find_or_create_root(const struct lu_env *env,
- struct mdd_device *mdd)
+static int mdd_lfsck_out_notify(const struct lu_env *env, void *data,
+ enum lfsck_events event)
{
- struct dt_object *root;
- struct md_object *mroot;
- struct lu_fid fid;
- int rc = 0;
-
- ENTRY;
-
- /* Check if the "ROOT" entry exists already */
- root = dt_store_open(env, mdd->mdd_child, "", mdd_root_dir_name,
- &fid);
- if (!IS_ERR(root)) {
- lu_object_put(env, &root->do_lu);
- GOTO(out, rc = 0);
- }
-
- lu_root_fid(&fid);
- /* New Filesystem, create /ROOT */
- mroot = llo_store_create_index(env, &mdd->mdd_md_dev, mdd->mdd_bottom,
- "", mdd_root_dir_name, &fid,
- &dt_directory_features);
- if (IS_ERR(mroot))
- GOTO(out, rc = PTR_ERR(mroot));
-
- lu_object_put(env, &mroot->mo_lu);
-out:
- if (rc == 0)
- mdd->mdd_root_fid = fid;
-
- RETURN(rc);
+ 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 dt_object *root;
- struct lu_fid fid;
- int rc;
+ struct mdd_device *mdd = lu2mdd_dev(cdev);
+ struct lu_device *next = &mdd->mdd_child->dd_lu_dev;
+ struct nm_config_file *nodemap_config;
+ struct obd_device_target *obt = &mdd2obd_dev(mdd)->u.obt;
+ struct lu_fid fid;
+ int rc;
- ENTRY;
+ ENTRY;
rc = next->ld_ops->ldo_prepare(env, cdev, next);
if (rc)
- GOTO(out, 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, rc);
+ if (rc < 0)
+ GOTO(out_los, rc);
+ lu_root_fid(&fid);
if (mdd_seq_site(mdd)->ss_node_id == 0) {
- rc = mdd_find_or_create_root(env, mdd);
+ 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, 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, rc);
+ GOTO(out_los, rc);
}
-
- rc = mdd_compat_fixes(env, mdd);
- if (rc)
- GOTO(out, 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, rc);
-
- /* we use capa file to declare llog changes,
- * will be fixed with new llog in 2.3 */
- root = dt_store_open(env, mdd->mdd_child, "", CAPA_KEYS, &fid);
- if (IS_ERR(root))
- GOTO(out, rc = PTR_ERR(root));
-
- mdd->mdd_capa = root;
+ if (rc < 0)
+ GOTO(out_dot, rc);
rc = mdd_changelog_init(env, mdd);
- if (rc != 0)
- GOTO(out, rc);
+ if (rc != 0) {
+ CERROR("%s: failed to initialize changelog: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name, rc);
+ GOTO(out_orph, rc);
+ }
- rc = mdd_lfsck_setup(env, mdd);
+ rc = mdd_hsm_actions_llog_init(env, mdd);
if (rc != 0)
+ GOTO(out_changelog, rc);
+
+ nodemap_config = nm_config_file_register_tgt(env, mdd->mdd_bottom,
+ mdd->mdd_los);
+ if (IS_ERR(nodemap_config)) {
+ rc = PTR_ERR(nodemap_config);
+ if (rc != -EROFS)
+ GOTO(out_hsm, rc);
+ } else {
+ obt->obt_nodemap_config_file = nodemap_config;
+ }
+
+ 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);
-out:
+ GOTO(out_nodemap, rc);
+ }
+
+ rc = barrier_register(mdd->mdd_bottom, mdd->mdd_child);
+ if (rc) {
+ CERROR("%s: failed to register to barrier: rc = %d\n",
+ mdd2obd_dev(mdd)->obd_name, rc);
+ GOTO(out_lfsck, rc);
+ }
+
+ RETURN(0);
+
+out_lfsck:
+ lfsck_degister(env, mdd->mdd_bottom);
+out_nodemap:
+ nm_config_file_deregister_tgt(env, obt->obt_nodemap_config_file);
+ obt->obt_nodemap_config_file = NULL;
+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;
}
.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,
- struct obd_statfs *sfs)
+ struct obd_statfs *sfs)
{
- struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
- int rc;
-
- ENTRY;
-
- rc = mdd_child_ops(mdd)->dt_statfs(env, mdd->mdd_child, sfs);
+ struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
+ int rc;
- RETURN(rc);
-}
+ ENTRY;
-/*
- * No permission check is needed.
- */
-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);
- int rc;
- ENTRY;
+ rc = mdd_child_ops(mdd)->dt_statfs(env, mdd->mdd_child, sfs);
- /* need barrier for mds_capa_keys access. */
+ sfs->os_namelen = min_t(__u32, sfs->os_namelen, NAME_MAX);
- rc = mdd_child_ops(mdd)->dt_init_capa_ctxt(env, mdd->mdd_child, mode,
- timeout, alg, keys);
- RETURN(rc);
+ RETURN(rc);
}
-static int mdd_update_capa_key(const struct lu_env *env,
- struct md_device *m,
- struct lustre_capa_key *key)
+static const struct dt_device_param *mdd_dtconf_get(const struct lu_env *env,
+ struct md_device *m)
{
- /* we do not support capabilities ... */
- return -EINVAL;
+ struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
+
+ return &mdd->mdd_dt_conf;
}
static int mdd_llog_ctxt_get(const struct lu_env *env, struct md_device *m,
struct mdd_device *m = lu2mdd_dev(lu);
ENTRY;
- LASSERT(cfs_atomic_read(&lu->ld_ref) == 0);
+ LASSERT(atomic_read(&lu->ld_ref) == 0);
md_device_fini(&m->mdd_md_dev);
OBD_FREE_PTR(m);
RETURN(NULL);
RETURN(rc);
}
-static int mdd_obd_health_check(const struct lu_env *env,
- struct obd_device *obd)
+static int mdd_obd_get_info(const struct lu_env *env, struct obd_export *exp,
+ __u32 keylen, void *key, __u32 *vallen, void *val)
{
- struct mdd_device *mdd = lu2mdd_dev(obd->obd_lu_dev);
- int rc;
- ENTRY;
+ int rc = -EINVAL;
+
+ if (KEY_IS(KEY_OSP_CONNECTED)) {
+ struct obd_device *obd = exp->exp_obd;
+ struct mdd_device *mdd;
+
+ 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);
+ RETURN(rc);
+ }
+
+ RETURN(rc);
+}
+static int mdd_obd_set_info_async(const struct lu_env *env,
+ struct obd_export *exp,
+ __u32 keylen, void *key,
+ __u32 vallen, void *val,
+ struct ptlrpc_request_set *set)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct mdd_device *mdd;
+ int rc;
+
+ if (!obd->obd_set_up || obd->obd_stopping)
+ RETURN(-EAGAIN);
+
+ mdd = lu2mdd_dev(obd->obd_lu_dev);
LASSERT(mdd);
- rc = obd_health_check(env, mdd->mdd_child_exp->exp_obd);
+ rc = obd_set_info_async(env, mdd->mdd_child_exp, keylen, key,
+ vallen, val, set);
RETURN(rc);
}
.o_owner = THIS_MODULE,
.o_connect = mdd_obd_connect,
.o_disconnect = mdd_obd_disconnect,
- .o_health_check = mdd_obd_health_check
+ .o_get_info = mdd_obd_get_info,
+ .o_set_info_async = mdd_obd_set_info_async,
};
-/*
- * context key constructor/destructor:
- * mdd_capainfo_key_init, mdd_capainfo_key_fini
- */
-LU_KEY_INIT_FINI(mdd_capainfo, struct md_capainfo);
-
-struct lu_context_key mdd_capainfo_key = {
- .lct_tags = LCT_SESSION,
- .lct_init = mdd_capainfo_key_init,
- .lct_fini = mdd_capainfo_key_fini
-};
-
-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);
-}
-EXPORT_SYMBOL(md_capainfo);
-
static int mdd_changelog_user_register(const struct lu_env *env,
struct mdd_device *mdd, int *id)
{
RETURN(-ENOMEM);
}
- /* Assume we want it on since somebody registered */
- rc = mdd_changelog_on(env, mdd, 1);
- if (rc)
- GOTO(out, rc);
+ /* Assume we want it on since somebody registered */
+ rc = mdd_changelog_on(env, mdd);
+ if (rc)
+ GOTO(out, rc);
rec->cur_hdr.lrh_len = sizeof(*rec);
rec->cur_hdr.lrh_type = CHANGELOG_USER_REC;
}
*id = rec->cur_id = ++mdd->mdd_cl.mc_lastuser;
rec->cur_endrec = mdd->mdd_cl.mc_index;
+
+ rec->cur_time = (__u32)get_seconds();
+ if (OBD_FAIL_CHECK(OBD_FAIL_TIME_IN_CHLOG_USER))
+ rec->cur_time = 0;
+
spin_unlock(&mdd->mdd_cl.mc_user_lock);
- rc = llog_cat_add(env, ctxt->loc_handle, &rec->cur_hdr, NULL, NULL);
+ rc = llog_cat_add(env, ctxt->loc_handle, &rec->cur_hdr, NULL);
CDEBUG(D_IOCTL, "Registered changelog user %d\n", *id);
out:
RETURN(rc);
}
-struct mdd_changelog_user_data {
- __u64 mcud_endrec; /**< purge record for this user */
- __u64 mcud_minrec; /**< lowest changelog recno still referenced */
- __u32 mcud_id;
- __u32 mcud_minid; /**< user id with lowest rec reference */
- __u32 mcud_usercount;
- unsigned int mcud_found:1;
+struct mdd_changelog_user_purge {
+ __u32 mcup_id;
+ __u32 mcup_usercount;
+ __u64 mcup_minrec;
+ bool mcup_found;
};
-#define MCUD_UNREGISTER -1LL
-/** Two things:
- * 1. Find the smallest record everyone is willing to purge
- * 2. Update the last purgeable record for this user
+/**
+ * changelog_user_purge callback
+ *
+ * Is called once per user.
+ *
+ * Check to see the user requested is available from rec.
+ * Truncate the changelog.
+ * Keep track of the total number of users (calls).
*/
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 = data;
+ struct mdd_changelog_user_purge *mcup = data;
+ struct llog_cookie cookie;
int rc;
- ENTRY;
+ ENTRY;
- LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
+ if ((llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) == 0)
+ RETURN(-ENXIO);
- rec = (struct llog_changelog_user_rec *)hdr;
+ rec = container_of(hdr, struct llog_changelog_user_rec, cur_hdr);
- mcud->mcud_usercount++;
+ mcup->mcup_usercount++;
- /* If we have a new endrec for this id, use it for the following
- min check instead of its old value */
- if (rec->cur_id == mcud->mcud_id)
- rec->cur_endrec = max(rec->cur_endrec, mcud->mcud_endrec);
+ if (rec->cur_id != mcup->mcup_id) {
+ /* truncate to the lowest endrec that is not this user */
+ mcup->mcup_minrec = min(mcup->mcup_minrec,
+ rec->cur_endrec);
+ RETURN(0);
+ }
- /* Track the minimum referenced record */
- if (mcud->mcud_minid == 0 || mcud->mcud_minrec > rec->cur_endrec) {
- mcud->mcud_minid = rec->cur_id;
- mcud->mcud_minrec = rec->cur_endrec;
- }
+ /* Unregister this user */
+ cookie.lgc_lgl = llh->lgh_id;
+ cookie.lgc_index = hdr->lrh_index;
- if (rec->cur_id != mcud->mcud_id)
- RETURN(0);
+ rc = llog_cat_cancel_records(env, llh->u.phd.phd_cat_handle,
+ 1, &cookie);
+ if (rc == 0) {
+ mcup->mcup_found = true;
+ mcup->mcup_usercount--;
+ }
- /* Update this user's record */
- mcud->mcud_found = 1;
+ RETURN(rc);
+}
- /* Special case: unregister this user */
- if (mcud->mcud_endrec == MCUD_UNREGISTER) {
- struct llog_cookie cookie;
+int mdd_changelog_user_purge(const struct lu_env *env,
+ struct mdd_device *mdd, __u32 id)
+{
+ struct mdd_changelog_user_purge mcup = {
+ .mcup_id = id,
+ .mcup_found = false,
+ .mcup_usercount = 0,
+ .mcup_minrec = ULLONG_MAX,
+ };
+ struct llog_ctxt *ctxt;
+ int rc;
- cookie.lgc_lgl = llh->lgh_id;
- cookie.lgc_index = hdr->lrh_index;
+ ENTRY;
- rc = llog_cat_cancel_records(env, llh->u.phd.phd_cat_handle,
- 1, &cookie);
- if (rc == 0)
- mcud->mcud_usercount--;
+ CDEBUG(D_IOCTL, "%s: Purge request: id=%u\n",
+ mdd2obd_dev(mdd)->obd_name, id);
- RETURN(rc);
- }
+ ctxt = llog_get_context(mdd2obd_dev(mdd),
+ LLOG_CHANGELOG_USER_ORIG_CTXT);
+ if (ctxt == NULL ||
+ (ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) == 0)
+ GOTO(out, rc = -ENXIO);
- /* Update the endrec */
- CDEBUG(D_IOCTL, "Rewriting changelog user %d endrec to "LPU64"\n",
- mcud->mcud_id, rec->cur_endrec);
+ rc = llog_cat_process(env, ctxt->loc_handle,
+ mdd_changelog_user_purge_cb, &mcup,
+ 0, 0);
- /* hdr+1 is loc of data */
- hdr->lrh_len -= sizeof(*hdr) + sizeof(struct llog_rec_tail);
- rc = llog_write(env, llh, hdr, NULL, 0, (void *)(hdr + 1),
- hdr->lrh_index);
+ if ((rc == 0) && mcup.mcup_found) {
+ CDEBUG(D_IOCTL, "%s: Purging changelog entries for user %d "
+ "record=%llu\n",
+ mdd2obd_dev(mdd)->obd_name, id, mcup.mcup_minrec);
+ /* Cancelling record 0 destroys the entire changelog, make sure
+ we don't do that unless we mean it. */
+ if (mcup.mcup_minrec != 0 || mcup.mcup_usercount == 0) {
+ rc = mdd_changelog_llog_cancel(env, mdd,
+ mcup.mcup_minrec);
+ }
+ } else {
+ CWARN("%s: No changelog for user %u; rc=%d\n",
+ mdd2obd_dev(mdd)->obd_name, id, rc);
+ GOTO(out, rc = -ENOENT);
+ }
- RETURN(rc);
+ if ((rc == 0) && (mcup.mcup_usercount == 0)) {
+ /* No more users; turn changelogs off */
+ CDEBUG(D_IOCTL, "turning off changelogs\n");
+ rc = mdd_changelog_off(env, mdd);
+ }
+
+ EXIT;
+out:
+ if (ctxt != NULL)
+ llog_ctxt_put(ctxt);
+
+ return rc;
}
-static int mdd_changelog_user_purge(const struct lu_env *env,
- struct mdd_device *mdd, int id,
- long long endrec)
+struct mdd_changelog_user_clear {
+ __u64 mcuc_endrec;
+ __u64 mcuc_minrec;
+ __u32 mcuc_id;
+ bool mcuc_flush;
+};
+
+/**
+ * changelog_clear callback
+ *
+ * Is called once per user.
+ *
+ * Check to see the user requested is available from rec.
+ * Check the oldest (smallest) record for boundary conditions.
+ * Truncate the changelog.
+ */
+static int mdd_changelog_clear_cb(const struct lu_env *env,
+ struct llog_handle *llh,
+ struct llog_rec_hdr *hdr,
+ void *data)
{
- struct mdd_changelog_user_data data;
- struct llog_ctxt *ctxt;
- int rc;
- ENTRY;
+ struct llog_changelog_user_rec *rec;
+ struct mdd_changelog_user_clear *mcuc = data;
+ int rc;
+
+ ENTRY;
+
+ if ((llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) == 0)
+ RETURN(-ENXIO);
+
+ rec = container_of(hdr, struct llog_changelog_user_rec, cur_hdr);
+
+ /* Does the changelog id match the requested id? */
+ if (rec->cur_id != mcuc->mcuc_id) {
+ mcuc->mcuc_minrec = min(mcuc->mcuc_minrec,
+ rec->cur_endrec);
+ RETURN(0);
+ }
+
+ /* cur_endrec is the oldest purgeable record, make sure we're newer */
+ if (rec->cur_endrec > mcuc->mcuc_endrec) {
+ CDEBUG(D_IOCTL, "Request %llu out of range: %llu\n",
+ mcuc->mcuc_endrec, rec->cur_endrec);
+ RETURN(-EINVAL);
+ }
+
+ /* Flag that we've met all the range and user checks.
+ * We now know the record to flush.
+ */
+ rec->cur_endrec = mcuc->mcuc_endrec;
+
+ rec->cur_time = (__u32)get_seconds();
+ if (OBD_FAIL_CHECK(OBD_FAIL_TIME_IN_CHLOG_USER))
+ rec->cur_time = 0;
+
+ mcuc->mcuc_flush = true;
+
+ CDEBUG(D_IOCTL, "Rewriting changelog user %u endrec to %llu\n",
+ mcuc->mcuc_id, rec->cur_endrec);
+
+ /* Update the endrec */
+ rc = llog_write(env, llh, hdr, hdr->lrh_index);
+
+ RETURN(rc);
+}
- CDEBUG(D_IOCTL, "Purge request: id=%d, endrec=%lld\n", id, endrec);
+/**
+ * Clear a changelog up to entry specified by endrec for user id.
+ */
+static int mdd_changelog_clear(const struct lu_env *env,
+ struct mdd_device *mdd, __u32 id,
+ __u64 endrec)
+{
+ struct mdd_changelog_user_clear mcuc = {
+ .mcuc_id = id,
+ .mcuc_minrec = endrec,
+ .mcuc_flush = false,
+ };
+ struct llog_ctxt *ctxt;
+ __u64 start_rec;
+ int rc;
- data.mcud_id = id;
- data.mcud_minid = 0;
- data.mcud_minrec = 0;
- data.mcud_usercount = 0;
- data.mcud_endrec = endrec;
+ ENTRY;
+
+ CDEBUG(D_IOCTL, "%s: Purge request: id=%u, endrec=%llu\n",
+ mdd2obd_dev(mdd)->obd_name, id, endrec);
+ /* start_rec is the newest (largest value) entry in the changelogs*/
spin_lock(&mdd->mdd_cl.mc_lock);
- endrec = mdd->mdd_cl.mc_index;
+ start_rec = 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);
- if (ctxt == NULL)
- return -ENXIO;
+ if (start_rec < endrec) {
+ CDEBUG(D_IOCTL, "%s: Could not clear changelog, requested "\
+ "address out of range\n", mdd2obd_dev(mdd)->obd_name);
+ RETURN(-EINVAL);
+ }
+
+ if (endrec == 0) {
+ mcuc.mcuc_endrec = start_rec;
+ mcuc.mcuc_minrec = ULLONG_MAX;
+ } else {
+ mcuc.mcuc_endrec = endrec;
+ }
- LASSERT(ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT);
+ ctxt = llog_get_context(mdd2obd_dev(mdd),
+ LLOG_CHANGELOG_USER_ORIG_CTXT);
+ if (ctxt == NULL ||
+ (ctxt->loc_handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) == 0)
+ GOTO(out, rc = -ENXIO);
rc = llog_cat_process(env, ctxt->loc_handle,
- mdd_changelog_user_purge_cb, (void *)&data,
+ mdd_changelog_clear_cb, (void *)&mcuc,
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(env, mdd, data.mcud_minrec);
- } else {
- CWARN("Could not determine changelog records to purge; rc=%d\n",
- rc);
- }
- llog_ctxt_put(ctxt);
-
- if (!data.mcud_found) {
- CWARN("No entry for user %d. Last changelog reference is "
- LPD64" by changelog user %d\n", data.mcud_id,
- data.mcud_minrec, data.mcud_minid);
- rc = -ENOENT;
- }
+ if (rc < 0) {
+ CWARN("%s: Failure to clear the changelog for user %d: %d\n",
+ mdd2obd_dev(mdd)->obd_name, id, rc);
+ } else if (mcuc.mcuc_flush) {
+ /* Cancelling record 0 destroys the entire changelog, make sure
+ we don't do that unless we mean it. */
+ if (mcuc.mcuc_minrec != 0) {
+ CDEBUG(D_IOCTL, "%s: Purging changelog entries up "\
+ "to %llu\n", mdd2obd_dev(mdd)->obd_name,
+ mcuc.mcuc_minrec);
+
+ rc = mdd_changelog_llog_cancel(env, mdd,
+ mcuc.mcuc_minrec);
+ }
+ } else {
+ CWARN("%s: No entry for user %d\n",
+ mdd2obd_dev(mdd)->obd_name, id);
+ rc = -ENOENT;
+ }
- if (!rc && data.mcud_usercount == 0)
- /* No more users; turn changelogs off */
- rc = mdd_changelog_on(env, mdd, 0);
+ EXIT;
+out:
+ if (ctxt != NULL)
+ llog_ctxt_put(ctxt);
- RETURN (rc);
+ return rc;
}
/** mdd_iocontrol
static int mdd_iocontrol(const struct lu_env *env, struct md_device *m,
unsigned int cmd, int len, void *karg)
{
- struct mdd_device *mdd;
- struct obd_ioctl_data *data = karg;
- int rc;
- ENTRY;
+ struct mdd_device *mdd = lu2mdd_dev(&m->md_lu_dev);
+ struct obd_ioctl_data *data = karg;
+ int rc;
+ ENTRY;
- mdd = lu2mdd_dev(&m->md_lu_dev);
+ /* Doesn't use obd_ioctl_data */
+ switch (cmd) {
+ case OBD_IOC_CHANGELOG_CLEAR: {
+ struct changelog_setinfo *cs = karg;
- /* Doesn't use obd_ioctl_data */
- switch (cmd) {
- case OBD_IOC_CHANGELOG_CLEAR: {
- struct changelog_setinfo *cs = karg;
- 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);
- }
+ if (unlikely(!barrier_entry(mdd->mdd_bottom)))
+ RETURN(-EINPROGRESS);
+
+ rc = mdd_changelog_clear(env, mdd, cs->cs_id,
+ cs->cs_recno);
+ barrier_exit(mdd->mdd_bottom);
+ RETURN(rc);
+ }
case OBD_IOC_START_LFSCK: {
- rc = mdd_lfsck_start(env, &mdd->mdd_lfsck,
- (struct lfsck_start *)karg);
+ rc = lfsck_start(env, mdd->mdd_bottom,
+ (struct lfsck_start_param *)karg);
RETURN(rc);
}
case OBD_IOC_STOP_LFSCK: {
- rc = mdd_lfsck_stop(env, &mdd->mdd_lfsck, false);
+ rc = lfsck_stop(env, mdd->mdd_bottom,
+ (struct lfsck_stop *)karg);
RETURN(rc);
}
- case OBD_IOC_PAUSE_LFSCK: {
- rc = mdd_lfsck_stop(env, &mdd->mdd_lfsck, true);
+ case OBD_IOC_QUERY_LFSCK: {
+ rc = lfsck_query(env, mdd->mdd_bottom, NULL, NULL,
+ (struct lfsck_query *)karg);
RETURN(rc);
}
- }
+ }
- /* Below ioctls use obd_ioctl_data */
- if (len != sizeof(*data)) {
- CERROR("Bad ioctl size %d\n", len);
- RETURN(-EINVAL);
- }
- if (data->ioc_version != OBD_IOCTL_VERSION) {
- CERROR("Bad magic %x != %x\n", data->ioc_version,
- OBD_IOCTL_VERSION);
- RETURN(-EINVAL);
- }
+ /* Below ioctls use obd_ioctl_data */
+ if (len != sizeof(*data)) {
+ CERROR("Bad ioctl size %d\n", len);
+ RETURN(-EINVAL);
+ }
+ if (data->ioc_version != OBD_IOCTL_VERSION) {
+ CERROR("Bad magic %x != %x\n", data->ioc_version,
+ OBD_IOCTL_VERSION);
+ RETURN(-EINVAL);
+ }
- switch (cmd) {
- case OBD_IOC_CHANGELOG_REG:
- rc = mdd_changelog_user_register(env, mdd, &data->ioc_u32_1);
- break;
- case OBD_IOC_CHANGELOG_DEREG:
- rc = mdd_changelog_user_purge(env, mdd, data->ioc_u32_1,
- MCUD_UNREGISTER);
- break;
- default:
- rc = -ENOTTY;
- }
+ switch (cmd) {
+ case OBD_IOC_CHANGELOG_REG:
+ if (unlikely(!barrier_entry(mdd->mdd_bottom)))
+ RETURN(-EINPROGRESS);
- RETURN (rc);
+ rc = mdd_changelog_user_register(env, mdd, &data->ioc_u32_1);
+ barrier_exit(mdd->mdd_bottom);
+ break;
+ case OBD_IOC_CHANGELOG_DEREG:
+ if (unlikely(!barrier_entry(mdd->mdd_bottom)))
+ RETURN(-EINPROGRESS);
+
+ rc = mdd_changelog_user_purge(env, mdd, data->ioc_u32_1);
+ barrier_exit(mdd->mdd_bottom);
+ break;
+ default:
+ rc = -ENOTTY;
+ }
+
+ RETURN(rc);
}
/* type constructor/destructor: mdd_type_init, mdd_type_fini */
-LU_TYPE_INIT_FINI(mdd, &mdd_thread_key, &mdd_capainfo_key);
-
-const struct md_device_operations mdd_ops = {
- .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,
+LU_TYPE_INIT_FINI(mdd, &mdd_thread_key);
+
+static const struct md_device_operations mdd_ops = {
+ .mdo_statfs = mdd_statfs,
+ .mdo_root_get = mdd_root_get,
+ .mdo_llog_ctxt_get = mdd_llog_ctxt_get,
+ .mdo_iocontrol = mdd_iocontrol,
+ .mdo_dtconf_get = mdd_dtconf_get,
};
static struct lu_device_type_operations mdd_device_type_ops = {
LU_KEY_INIT(mdd, struct mdd_thread_info);
static void mdd_key_fini(const struct lu_context *ctx,
- struct lu_context_key *key, void *data)
+ 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);
-
- OBD_FREE_PTR(info);
+ struct mdd_thread_info *info = data;
+
+ lu_buf_free(&info->mti_big_buf);
+ lu_buf_free(&info->mti_link_buf);
+ lu_buf_free(&info->mti_xattr_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,
-};
+int mdd_generic_thread_start(struct mdd_generic_thread *thread,
+ int (*func)(void *), void *data, char *name)
+{
+ struct task_struct *task;
-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,
-};
+ LASSERT(thread->mgt_init == false);
+ init_completion(&thread->mgt_started);
+ init_completion(&thread->mgt_finished);
+ thread->mgt_data = data;
+ thread->mgt_abort = false;
+ thread->mgt_init = true;
-static struct lu_local_obj_desc llod_lfsck_bookmark = {
- .llod_name = lfsck_bookmark_name,
- .llod_oid = LFSCK_BOOKMARK_OID,
- .llod_is_index = 0,
-};
+ task = kthread_run(func, thread, name);
+ if (IS_ERR(task)) {
+ complete(&thread->mgt_finished);
+ return PTR_ERR(task);
+ }
+ wait_for_completion(&thread->mgt_started);
+ return 0;
+}
-static struct lu_local_obj_desc llod_lfsck_namespace = {
- .llod_name = lfsck_namespace_name,
- .llod_oid = LFSCK_NAMESPACE_OID,
- .llod_is_index = 1,
- .llod_feat = &dt_lfsck_features,
-};
+void mdd_generic_thread_stop(struct mdd_generic_thread *thread)
+{
+ if (thread->mgt_init == true) {
+ thread->mgt_abort = true;
+ wait_for_completion(&thread->mgt_finished);
+ }
+}
-static int __init mdd_mod_init(void)
+static int __init mdd_init(void)
{
- struct lprocfs_static_vars lvars;
int rc;
- lprocfs_mdd_init_vars(&lvars);
-
rc = lu_kmem_init(mdd_caches);
if (rc)
return rc;
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_lfsck_bookmark);
- llo_local_obj_register(&llod_lfsck_namespace);
+ 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;
- rc = class_register_type(&mdd_obd_device_ops, NULL, lvars.module_vars,
+ rc = class_register_type(&mdd_obd_device_ops, NULL, true, NULL,
LUSTRE_MDD_NAME, &mdd_device_type);
if (rc)
lu_kmem_fini(mdd_caches);
return rc;
}
-static void __exit mdd_mod_exit(void)
+static void __exit mdd_exit(void)
{
- llo_local_obj_unregister(&llod_capa_key);
- llo_local_obj_unregister(&llod_mdd_orphan);
- llo_local_obj_unregister(&llod_lfsck_bookmark);
- llo_local_obj_unregister(&llod_lfsck_namespace);
-
class_unregister_type(LUSTRE_MDD_NAME);
lu_kmem_fini(mdd_caches);
}
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Meta-data Device Prototype ("LUSTRE_MDD_NAME")");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Lustre Meta-data Device Driver ("LUSTRE_MDD_NAME")");
+MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");
-cfs_module(mdd, "0.1.0", mdd_mod_init, mdd_mod_exit);
+module_init(mdd_init);
+module_exit(mdd_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff