* GPL HEADER END
*/
/*
- * Copyright (c) 2012, 2013, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* lustre/obdclass/local_storage.c
#include "local_storage.h"
/* all initialized local storages on this node are linked on this */
-static CFS_LIST_HEAD(ls_list_head);
+static LIST_HEAD(ls_list_head);
static DEFINE_MUTEX(ls_list_mutex);
static int ls_object_init(const struct lu_env *env, struct lu_object *o,
OBD_FREE_PTR(obj);
}
-struct lu_object_operations ls_lu_obj_ops = {
+static struct lu_object_operations ls_lu_obj_ops = {
.loo_object_init = ls_object_init,
.loo_object_free = ls_object_free,
};
-struct lu_object *ls_object_alloc(const struct lu_env *env,
- const struct lu_object_header *_h,
- struct lu_device *d)
+static struct lu_object *ls_object_alloc(const struct lu_env *env,
+ const struct lu_object_header *_h,
+ struct lu_device *d)
{
struct lu_object_header *h;
struct ls_object *o;
{
struct ls_device *ls, *ret = NULL;
- cfs_list_for_each_entry(ls, &ls_list_head, ls_linkage) {
+ list_for_each_entry(ls, &ls_list_head, ls_linkage) {
if (ls->ls_osd == dev) {
- cfs_atomic_inc(&ls->ls_refcount);
+ atomic_inc(&ls->ls_refcount);
ret = ls;
break;
}
if (ls == NULL)
GOTO(out_ls, ls = ERR_PTR(-ENOMEM));
- cfs_atomic_set(&ls->ls_refcount, 1);
- CFS_INIT_LIST_HEAD(&ls->ls_los_list);
+ atomic_set(&ls->ls_refcount, 1);
+ INIT_LIST_HEAD(&ls->ls_los_list);
mutex_init(&ls->ls_los_mutex);
ls->ls_osd = dev;
ls->ls_top_dev.dd_lu_dev.ld_site = dev->dd_lu_dev.ld_site;
/* finally add ls to the list */
- cfs_list_add(&ls->ls_linkage, &ls_list_head);
+ list_add(&ls->ls_linkage, &ls_list_head);
out_ls:
mutex_unlock(&ls_list_mutex);
RETURN(ls);
void ls_device_put(const struct lu_env *env, struct ls_device *ls)
{
LASSERT(env);
- if (!cfs_atomic_dec_and_test(&ls->ls_refcount))
+ if (!atomic_dec_and_test(&ls->ls_refcount))
return;
mutex_lock(&ls_list_mutex);
- if (cfs_atomic_read(&ls->ls_refcount) == 0) {
- LASSERT(cfs_list_empty(&ls->ls_los_list));
- cfs_list_del(&ls->ls_linkage);
+ if (atomic_read(&ls->ls_refcount) == 0) {
+ LASSERT(list_empty(&ls->ls_los_list));
+ list_del(&ls->ls_linkage);
lu_site_purge(env, ls->ls_top_dev.dd_lu_dev.ld_site, ~0);
lu_device_fini(&ls->ls_top_dev.dd_lu_dev);
OBD_FREE_PTR(ls);
/* update fid generation file */
if (los != NULL) {
LASSERT(dt_object_exists(los->los_obj));
+ dti->dti_lb.lb_buf = NULL;
+ dti->dti_lb.lb_len = sizeof(struct los_ondisk);
rc = dt_declare_record_write(env, los->los_obj,
- sizeof(struct los_ondisk), 0, th);
+ &dti->dti_lb, 0, th);
if (rc)
RETURN(rc);
}
struct dt_object_format *dof, struct thandle *th)
{
struct dt_thread_info *dti = dt_info(env);
- obd_id lastid;
+ u64 lastid;
int rc;
ENTRY;
/*
* Create local named object (file, directory or index) in parent directory.
*/
-struct dt_object *__local_file_create(const struct lu_env *env,
- const struct lu_fid *fid,
- struct local_oid_storage *los,
- struct ls_device *ls,
- struct dt_object *parent,
- const char *name, struct lu_attr *attr,
- struct dt_object_format *dof)
+static struct dt_object *__local_file_create(const struct lu_env *env,
+ const struct lu_fid *fid,
+ struct local_oid_storage *los,
+ struct ls_device *ls,
+ struct dt_object *parent,
+ const char *name,
+ struct lu_attr *attr,
+ struct dt_object_format *dof)
{
- struct dt_thread_info *dti = dt_info(env);
+ struct dt_thread_info *dti = dt_info(env);
+ struct lu_object_conf *conf = &dti->dti_conf;
+ struct dt_insert_rec *rec = &dti->dti_dt_rec;
struct dt_object *dto;
struct thandle *th;
int rc;
- dto = ls_locate(env, ls, fid);
+ /* We know that the target object does not exist, to be created,
+ * then give some hints - LOC_F_NEW to help low layer to handle
+ * that efficiently and properly. */
+ memset(conf, 0, sizeof(*conf));
+ conf->loc_flags = LOC_F_NEW;
+ dto = ls_locate(env, ls, fid, conf);
if (unlikely(IS_ERR(dto)))
RETURN(dto);
GOTO(trans_stop, rc);
if (dti->dti_dof.dof_type == DFT_DIR) {
- dt_declare_ref_add(env, dto, th);
- dt_declare_ref_add(env, parent, th);
+ rc = dt_declare_ref_add(env, dto, th);
+ if (rc < 0)
+ GOTO(trans_stop, rc);
+
+ rc = dt_declare_ref_add(env, parent, th);
+ if (rc < 0)
+ GOTO(trans_stop, rc);
}
- rc = dt_declare_insert(env, parent, (void *)fid, (void *)name, th);
+ rec->rec_fid = fid;
+ rec->rec_type = attr->la_mode & S_IFMT;
+ rc = dt_declare_insert(env, parent, (const struct dt_rec *)rec,
+ (const struct dt_key *)name, th);
if (rc)
GOTO(trans_stop, rc);
+ if (dti->dti_dof.dof_type == DFT_DIR) {
+ if (!dt_try_as_dir(env, dto))
+ GOTO(trans_stop, rc = -ENOTDIR);
+
+ rec->rec_type = S_IFDIR;
+ rec->rec_fid = fid;
+ rc = dt_declare_insert(env, dto, (const struct dt_rec *)rec,
+ (const struct dt_key *)".", th);
+ if (rc != 0)
+ GOTO(trans_stop, rc);
+
+ rec->rec_fid = lu_object_fid(&parent->do_lu);
+ rc = dt_declare_insert(env, dto, (const struct dt_rec *)rec,
+ (const struct dt_key *)"..", th);
+ if (rc != 0)
+ GOTO(trans_stop, rc);
+
+ rc = dt_declare_ref_add(env, dto, th);
+ if (rc != 0)
+ GOTO(trans_stop, rc);
+ }
+
rc = dt_trans_start_local(env, ls->ls_osd, th);
if (rc)
GOTO(trans_stop, rc);
- dt_write_lock(env, dto, 0);
+ dt_write_lock(env, dto, LOS_CHILD);
if (dt_object_exists(dto))
GOTO(unlock, rc = 0);
LASSERT(dt_object_exists(dto));
if (dti->dti_dof.dof_type == DFT_DIR) {
- if (!dt_try_as_dir(env, dto))
- GOTO(destroy, rc = -ENOTDIR);
+
+ rec->rec_type = S_IFDIR;
+ rec->rec_fid = fid;
/* Add "." and ".." for newly created dir */
- rc = dt_insert(env, dto, (void *)fid, (void *)".", th,
- BYPASS_CAPA, 1);
- if (rc)
+ rc = dt_insert(env, dto, (const struct dt_rec *)rec,
+ (const struct dt_key *)".", th);
+ if (rc != 0)
GOTO(destroy, rc);
+
dt_ref_add(env, dto, th);
- rc = dt_insert(env, dto, (void *)lu_object_fid(&parent->do_lu),
- (void *)"..", th, BYPASS_CAPA, 1);
- if (rc)
+ rec->rec_fid = lu_object_fid(&parent->do_lu);
+ rc = dt_insert(env, dto, (const struct dt_rec *)rec,
+ (const struct dt_key *)"..", th);
+ if (rc != 0)
GOTO(destroy, rc);
}
- dt_write_lock(env, parent, 0);
- rc = dt_insert(env, parent, (const struct dt_rec *)fid,
- (const struct dt_key *)name, th, BYPASS_CAPA, 1);
+ rec->rec_fid = fid;
+ rec->rec_type = dto->do_lu.lo_header->loh_attr;
+ dt_write_lock(env, parent, LOS_PARENT);
+ rc = dt_insert(env, parent, (const struct dt_rec *)rec,
+ (const struct dt_key *)name, th);
if (dti->dti_dof.dof_type == DFT_DIR)
dt_ref_add(env, parent, th);
dt_write_unlock(env, parent);
dt_trans_stop(env, ls->ls_osd, th);
out:
if (rc) {
- lu_object_put_nocache(env, &dto->do_lu);
+ dt_object_put_nocache(env, dto);
dto = ERR_PTR(rc);
}
RETURN(dto);
}
+struct dt_object *local_file_find(const struct lu_env *env,
+ struct local_oid_storage *los,
+ struct dt_object *parent,
+ const char *name)
+{
+ struct dt_thread_info *dti = dt_info(env);
+ struct dt_object *dto;
+ int rc;
+
+ LASSERT(parent);
+
+ rc = dt_lookup_dir(env, parent, name, &dti->dti_fid);
+ if (!rc)
+ dto = ls_locate(env, dt2ls_dev(los->los_dev),
+ &dti->dti_fid, NULL);
+ else
+ dto = ERR_PTR(rc);
+
+ return dto;
+}
+EXPORT_SYMBOL(local_file_find);
+
/*
* Look up and create (if it does not exist) a local named file or directory in
* parent directory.
struct dt_object *dto;
int rc;
- LASSERT(parent);
+ dto = local_file_find(env, los, parent, name);
+ if (!IS_ERR(dto) || PTR_ERR(dto) != -ENOENT)
+ return dto;
- rc = dt_lookup_dir(env, parent, name, &dti->dti_fid);
- if (rc == 0)
- /* name is found, get the object */
- dto = ls_locate(env, dt2ls_dev(los->los_dev), &dti->dti_fid);
- else if (rc != -ENOENT)
- dto = ERR_PTR(rc);
- else {
- rc = local_object_fid_generate(env, los, &dti->dti_fid);
- if (rc < 0) {
- dto = ERR_PTR(rc);
- } else {
- /* create the object */
- dti->dti_attr.la_valid = LA_MODE;
- dti->dti_attr.la_mode = mode;
- dti->dti_dof.dof_type = dt_mode_to_dft(mode & S_IFMT);
- dto = __local_file_create(env, &dti->dti_fid, los,
- dt2ls_dev(los->los_dev),
- parent, name, &dti->dti_attr,
- &dti->dti_dof);
- }
- }
+ rc = local_object_fid_generate(env, los, &dti->dti_fid);
+ if (rc)
+ return ERR_PTR(rc);
+
+ /* create the object */
+ dti->dti_attr.la_valid = LA_MODE;
+ dti->dti_attr.la_mode = mode;
+ dti->dti_dof.dof_type = dt_mode_to_dft(mode & S_IFMT);
+ dto = __local_file_create(env, &dti->dti_fid, los,
+ dt2ls_dev(los->los_dev), parent, name,
+ &dti->dti_attr, &dti->dti_dof);
return dto;
}
EXPORT_SYMBOL(local_file_find_or_create);
* have to open the object in other device stack */
if (!IS_ERR(dto)) {
dti->dti_fid = dto->do_lu.lo_header->loh_fid;
- lu_object_put_nocache(env, &dto->do_lu);
+ dt_object_put_nocache(env, dto);
dto = dt_locate(env, dt, &dti->dti_fid);
}
ls_device_put(env, ls);
rc = dt_lookup_dir(env, parent, name, &dti->dti_fid);
if (rc == 0) {
/* name is found, get the object */
- dto = ls_locate(env, dt2ls_dev(los->los_dev), &dti->dti_fid);
+ dto = ls_locate(env, dt2ls_dev(los->los_dev),
+ &dti->dti_fid, NULL);
} else if (rc != -ENOENT) {
dto = ERR_PTR(rc);
} else {
* have to open the object in other device stack */
if (!IS_ERR(dto)) {
dti->dti_fid = dto->do_lu.lo_header->loh_fid;
- lu_object_put_nocache(env, &dto->do_lu);
+ dt_object_put_nocache(env, dto);
dto = dt_locate(env, dt, &dti->dti_fid);
}
ls_device_put(env, ls);
GOTO(stop, rc);
dt_write_lock(env, dto, 0);
- rc = dt_delete(env, parent, (struct dt_key *)name, th, BYPASS_CAPA);
+ rc = dt_delete(env, parent, (struct dt_key *)name, th);
if (rc < 0)
GOTO(unlock, rc);
rc = dt_ref_del(env, dto, th);
if (rc < 0) {
- rc = dt_insert(env, parent,
- (const struct dt_rec *)&dti->dti_fid,
- (const struct dt_key *)name, th, BYPASS_CAPA, 1);
+ struct dt_insert_rec *rec = &dti->dti_dt_rec;
+
+ rec->rec_fid = &dti->dti_fid;
+ rec->rec_type = dto->do_lu.lo_header->loh_attr;
+ rc = dt_insert(env, parent, (const struct dt_rec *)rec,
+ (const struct dt_key *)name, th);
GOTO(unlock, rc);
}
stop:
dt_trans_stop(env, dt, th);
out:
- lu_object_put_nocache(env, &dto->do_lu);
+ dt_object_put_nocache(env, dto);
return rc;
}
EXPORT_SYMBOL(local_object_unlink);
{
struct local_oid_storage *los, *ret = NULL;
- cfs_list_for_each_entry(los, &ls->ls_los_list, los_list) {
+ list_for_each_entry(los, &ls->ls_los_list, los_list) {
if (los->los_seq == seq) {
- cfs_atomic_inc(&los->los_refcount);
+ atomic_inc(&los->los_refcount);
ret = los;
break;
}
void dt_los_put(struct local_oid_storage *los)
{
- if (cfs_atomic_dec_and_test(&los->los_refcount))
+ if (atomic_dec_and_test(&los->los_refcount))
/* should never happen, only local_oid_storage_fini should
* drop refcount to zero */
LBUG();
/* after Lustre 2.3 release there may be old file to store last generated FID
* If such file exists then we have to read its content
*/
-int lastid_compat_check(const struct lu_env *env, struct dt_device *dev,
- __u64 lastid_seq, __u32 *first_oid, struct ls_device *ls)
+static int lastid_compat_check(const struct lu_env *env, struct dt_device *dev,
+ __u64 lastid_seq, __u32 *first_oid,
+ struct ls_device *ls)
{
struct dt_thread_info *dti = dt_info(env);
struct dt_object *root = NULL;
if (rc)
return rc;
- root = ls_locate(env, ls, &dti->dti_fid);
+ root = ls_locate(env, ls, &dti->dti_fid, NULL);
if (IS_ERR(root))
return PTR_ERR(root);
/* find old last_id file */
- snprintf(dti->dti_buf, sizeof(dti->dti_buf), "seq-"LPX64"-lastid",
+ snprintf(dti->dti_buf, sizeof(dti->dti_buf), "seq-%#llx-lastid",
lastid_seq);
rc = dt_lookup_dir(env, root, dti->dti_buf, &dti->dti_fid);
- lu_object_put_nocache(env, &root->do_lu);
+ dt_object_put_nocache(env, root);
if (rc == -ENOENT) {
/* old llog lastid accessed by FID only */
if (lastid_seq != FID_SEQ_LLOG)
dti->dti_fid.f_seq = FID_SEQ_LLOG;
dti->dti_fid.f_oid = 1;
dti->dti_fid.f_ver = 0;
- o = ls_locate(env, ls, &dti->dti_fid);
+ o = ls_locate(env, ls, &dti->dti_fid, NULL);
if (IS_ERR(o))
return PTR_ERR(o);
if (!dt_object_exists(o)) {
- lu_object_put_nocache(env, &o->do_lu);
+ dt_object_put_nocache(env, o);
return 0;
}
CDEBUG(D_INFO, "Found old llog lastid file\n");
} else if (rc < 0) {
return rc;
} else {
- CDEBUG(D_INFO, "Found old lastid file for sequence "LPX64"\n",
+ CDEBUG(D_INFO, "Found old lastid file for sequence %#llx\n",
lastid_seq);
- o = ls_locate(env, ls, &dti->dti_fid);
+ o = ls_locate(env, ls, &dti->dti_fid, NULL);
if (IS_ERR(o))
return PTR_ERR(o);
}
dt_read_lock(env, o, 0);
rc = dt_record_read(env, o, &dti->dti_lb, &dti->dti_off);
dt_read_unlock(env, o);
- lu_object_put_nocache(env, &o->do_lu);
if (rc == 0 && le32_to_cpu(losd.lso_magic) != LOS_MAGIC) {
- CERROR("%s: wrong content of seq-"LPX64"-lastid file, magic %x\n",
+ CERROR("%s: wrong content of seq-%#llx-lastid file, magic %x\n",
o->do_lu.lo_dev->ld_obd->obd_name, lastid_seq,
le32_to_cpu(losd.lso_magic));
- return -EINVAL;
+ rc = -EINVAL;
} else if (rc < 0) {
- CERROR("%s: failed to read seq-"LPX64"-lastid: rc = %d\n",
+ CERROR("%s: failed to read seq-%#llx-lastid: rc = %d\n",
o->do_lu.lo_dev->ld_obd->obd_name, lastid_seq, rc);
- return rc;
}
- *first_oid = le32_to_cpu(losd.lso_next_oid);
+ dt_object_put_nocache(env, o);
+ if (rc == 0)
+ *first_oid = le32_to_cpu(losd.lso_next_oid);
return rc;
}
{
struct dt_thread_info *dti = dt_info(env);
struct ls_device *ls;
- obd_id lastid;
+ u64 lastid;
struct dt_object *o = NULL;
struct thandle *th;
__u32 first_oid = fid_oid(first_fid);
if (*los == NULL)
GOTO(out, rc = -ENOMEM);
- cfs_atomic_set(&(*los)->los_refcount, 1);
+ atomic_set(&(*los)->los_refcount, 1);
mutex_init(&(*los)->los_id_lock);
(*los)->los_dev = &ls->ls_top_dev;
- cfs_atomic_inc(&ls->ls_refcount);
- cfs_list_add(&(*los)->los_list, &ls->ls_los_list);
+ atomic_inc(&ls->ls_refcount);
+ list_add(&(*los)->los_list, &ls->ls_los_list);
/* Use {seq, 0, 0} to create the LAST_ID file for every
* sequence. OIDs start at LUSTRE_FID_INIT_OID.
dti->dti_fid.f_seq = fid_seq(first_fid);
dti->dti_fid.f_oid = LUSTRE_FID_LASTID_OID;
dti->dti_fid.f_ver = 0;
- o = ls_locate(env, ls, &dti->dti_fid);
+ o = ls_locate(env, ls, &dti->dti_fid, NULL);
if (IS_ERR(o))
GOTO(out_los, rc = PTR_ERR(o));
if (rc)
GOTO(out_trans, rc);
- rc = dt_declare_record_write(env, o, sizeof(lastid), 0, th);
+ lastid = cpu_to_le64(first_oid);
+
+ dti->dti_off = 0;
+ dti->dti_lb.lb_buf = &lastid;
+ dti->dti_lb.lb_len = sizeof(lastid);
+ rc = dt_declare_record_write(env, o, &dti->dti_lb, dti->dti_off,
+ th);
if (rc)
GOTO(out_trans, rc);
if (rc)
GOTO(out_lock, rc);
- lastid = cpu_to_le64(first_oid);
-
- dti->dti_off = 0;
- dti->dti_lb.lb_buf = &lastid;
- dti->dti_lb.lb_len = sizeof(lastid);
rc = dt_record_write(env, o, &dti->dti_lb, &dti->dti_off, th);
if (rc)
GOTO(out_lock, rc);
rc = dt_record_read(env, o, &dti->dti_lb, &dti->dti_off);
dt_read_unlock(env, o);
if (rc == 0 && le64_to_cpu(lastid) > OBIF_MAX_OID) {
- CERROR("%s: bad oid "LPU64" is read from LAST_ID\n",
+ CERROR("%s: bad oid %llu is read from LAST_ID\n",
o->do_lu.lo_dev->ld_obd->obd_name,
le64_to_cpu(lastid));
rc = -EINVAL;
}
out_los:
if (rc != 0) {
- cfs_list_del(&(*los)->los_list);
- cfs_atomic_dec(&ls->ls_refcount);
+ list_del(&(*los)->los_list);
+ atomic_dec(&ls->ls_refcount);
OBD_FREE_PTR(*los);
*los = NULL;
if (o != NULL && !IS_ERR(o))
- lu_object_put_nocache(env, &o->do_lu);
+ dt_object_put_nocache(env, o);
} else {
(*los)->los_seq = fid_seq(first_fid);
(*los)->los_last_oid = le64_to_cpu(lastid);
EXPORT_SYMBOL(local_oid_storage_init);
void local_oid_storage_fini(const struct lu_env *env,
- struct local_oid_storage *los)
+ struct local_oid_storage *los)
{
struct ls_device *ls;
- if (!cfs_atomic_dec_and_test(&los->los_refcount))
- return;
-
LASSERT(env);
LASSERT(los->los_dev);
ls = dt2ls_dev(los->los_dev);
+ /* Take the mutex before decreasing the reference to avoid race
+ * conditions as described in LU-4721. */
mutex_lock(&ls->ls_los_mutex);
- if (cfs_atomic_read(&los->los_refcount) > 0) {
+ if (!atomic_dec_and_test(&los->los_refcount)) {
mutex_unlock(&ls->ls_los_mutex);
return;
}
if (los->los_obj)
- lu_object_put_nocache(env, &los->los_obj->do_lu);
- cfs_list_del(&los->los_list);
+ dt_object_put_nocache(env, los->los_obj);
+ list_del(&los->los_list);
OBD_FREE_PTR(los);
mutex_unlock(&ls->ls_los_mutex);
ls_device_put(env, ls);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff