#include "../include/lustre_debug.h"
#include "../include/lprocfs_status.h"
#include "../include/cl_object.h"
-#include "../include/md_object.h"
#include "../include/lustre_fid.h"
#include "../include/lustre_acl.h"
#include "../include/lustre_net.h"
struct cl_site *ed_site;
struct lu_device *ed_next;
int ed_next_islov;
- int ed_next_ismd;
- struct lu_client_seq *ed_cl_seq;
};
struct echo_object {
struct cl_lock_descr eti_descr;
struct lu_fid eti_fid;
struct lu_fid eti_fid2;
- struct md_op_spec eti_spec;
- struct lov_mds_md_v3 eti_lmm;
- struct lov_user_md_v3 eti_lum;
- struct md_attr eti_ma;
- struct lu_name eti_lname;
- /* per-thread values, can be re-used */
- void *eti_big_lmm;
- int eti_big_lmmsize;
- char eti_name[20];
- struct lu_buf eti_buf;
- char eti_xattr_buf[LUSTRE_POSIX_ACL_MAX_SIZE];
};
/* No session used right now */
struct echo_device *ed = cl2echo_dev(lu2cl_dev(obj->lo_dev));
struct echo_client_obd *ec = ed->ed_ec;
struct echo_object *eco = cl2echo_obj(lu2cl(obj));
+ const struct cl_object_conf *cconf;
+ struct echo_object_conf *econf;
if (ed->ed_next) {
struct lu_object *below;
lu_object_add(obj, below);
}
- if (!ed->ed_next_ismd) {
- const struct cl_object_conf *cconf = lu2cl_conf(conf);
- struct echo_object_conf *econf = cl2echo_conf(cconf);
+ cconf = lu2cl_conf(conf);
+ econf = cl2echo_conf(cconf);
- LASSERT(econf->eoc_md);
- eco->eo_lsm = *econf->eoc_md;
- /* clear the lsm pointer so that it won't get freed. */
- *econf->eoc_md = NULL;
- } else {
- eco->eo_lsm = NULL;
- }
+ LASSERT(econf->eoc_md);
+ eco->eo_lsm = *econf->eoc_md;
+ /* clear the lsm pointer so that it won't get freed. */
+ *econf->eoc_md = NULL;
eco->eo_dev = ed;
atomic_set(&eco->eo_npages, 0);
static void echo_site_fini(const struct lu_env *env, struct echo_device *ed)
{
if (ed->ed_site) {
- if (!ed->ed_next_ismd)
- cl_site_fini(ed->ed_site);
+ cl_site_fini(ed->ed_site);
ed->ed_site = NULL;
}
}
LU_TYPE_INIT_FINI(echo, &echo_thread_key, &echo_session_key);
-#define ECHO_SEQ_WIDTH 0xffffffff
-static int echo_fid_init(struct echo_device *ed, char *obd_name,
- struct seq_server_site *ss)
-{
- char *prefix;
- int rc;
-
- OBD_ALLOC_PTR(ed->ed_cl_seq);
- if (ed->ed_cl_seq == NULL)
- return -ENOMEM;
-
- OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
- if (prefix == NULL)
- GOTO(out_free_seq, rc = -ENOMEM);
-
- snprintf(prefix, MAX_OBD_NAME + 5, "srv-%s", obd_name);
-
- /* Init client side sequence-manager */
- rc = seq_client_init(ed->ed_cl_seq, NULL,
- LUSTRE_SEQ_METADATA,
- prefix, ss->ss_server_seq);
- ed->ed_cl_seq->lcs_width = ECHO_SEQ_WIDTH;
- OBD_FREE(prefix, MAX_OBD_NAME + 5);
- if (rc)
- GOTO(out_free_seq, rc);
-
- return 0;
-
-out_free_seq:
- OBD_FREE_PTR(ed->ed_cl_seq);
- ed->ed_cl_seq = NULL;
- return rc;
-}
-
-static int echo_fid_fini(struct obd_device *obddev)
-{
- struct echo_device *ed = obd2echo_dev(obddev);
-
- if (ed->ed_cl_seq != NULL) {
- seq_client_fini(ed->ed_cl_seq);
- OBD_FREE_PTR(ed->ed_cl_seq);
- ed->ed_cl_seq = NULL;
- }
-
- return 0;
-}
-
static struct lu_device *echo_device_alloc(const struct lu_env *env,
struct lu_device_type *t,
struct lustre_cfg *cfg)
next = tgt->obd_lu_dev;
if (!strcmp(tgt->obd_type->typ_name, LUSTRE_MDT_NAME)) {
- ed->ed_next_ismd = 1;
- } else {
- ed->ed_next_ismd = 0;
- rc = echo_site_init(env, ed);
- if (rc)
- GOTO(out, rc);
+ CERROR("echo MDT client must be run on server\n");
+ GOTO(out, rc = -EOPNOTSUPP);
}
+
+ rc = echo_site_init(env, ed);
+ if (rc)
+ GOTO(out, rc);
+
cleanup = 3;
rc = echo_client_setup(env, obd, cfg);
ed->ed_ec = &obd->u.echo_client;
cleanup = 4;
- if (ed->ed_next_ismd) {
- /* Suppose to connect to some Metadata layer */
- struct lu_site *ls;
- struct lu_device *ld;
- int found = 0;
-
- if (next == NULL) {
- CERROR("%s is not lu device type!\n",
- lustre_cfg_string(cfg, 1));
- GOTO(out, rc = -EINVAL);
- }
-
- tgt_type_name = lustre_cfg_string(cfg, 2);
- if (!tgt_type_name) {
- CERROR("%s no type name for echo %s setup\n",
- lustre_cfg_string(cfg, 1),
- tgt->obd_type->typ_name);
- GOTO(out, rc = -EINVAL);
- }
-
- ls = next->ld_site;
-
- spin_lock(&ls->ls_ld_lock);
- list_for_each_entry(ld, &ls->ls_ld_linkage, ld_linkage) {
- if (strcmp(ld->ld_type->ldt_name, tgt_type_name) == 0) {
- found = 1;
- break;
- }
- }
- spin_unlock(&ls->ls_ld_lock);
-
- if (found == 0) {
- CERROR("%s is not lu device type!\n",
- lustre_cfg_string(cfg, 1));
- GOTO(out, rc = -EINVAL);
- }
-
- next = ld;
- /* For MD echo client, it will use the site in MDS stack */
- ed->ed_site_myself.cs_lu = *ls;
- ed->ed_site = &ed->ed_site_myself;
- ed->ed_cl.cd_lu_dev.ld_site = &ed->ed_site_myself.cs_lu;
- rc = echo_fid_init(ed, obd->obd_name, lu_site2seq(ls));
- if (rc) {
- CERROR("echo fid init error %d\n", rc);
+ /* if echo client is to be stacked upon ost device, the next is
+ * NULL since ost is not a clio device so far */
+ if (next != NULL && !lu_device_is_cl(next))
+ next = NULL;
+
+ tgt_type_name = tgt->obd_type->typ_name;
+ if (next != NULL) {
+ LASSERT(next != NULL);
+ if (next->ld_site != NULL)
+ GOTO(out, rc = -EBUSY);
+
+ next->ld_site = &ed->ed_site->cs_lu;
+ rc = next->ld_type->ldt_ops->ldto_device_init(env, next,
+ next->ld_type->ldt_name,
+ NULL);
+ if (rc)
GOTO(out, rc);
- }
+
+ /* Tricky case, I have to determine the obd type since
+ * CLIO uses the different parameters to initialize
+ * objects for lov & osc. */
+ if (strcmp(tgt_type_name, LUSTRE_LOV_NAME) == 0)
+ ed->ed_next_islov = 1;
+ else
+ LASSERT(strcmp(tgt_type_name,
+ LUSTRE_OSC_NAME) == 0);
} else {
- /* if echo client is to be stacked upon ost device, the next is
- * NULL since ost is not a clio device so far */
- if (next != NULL && !lu_device_is_cl(next))
- next = NULL;
-
- tgt_type_name = tgt->obd_type->typ_name;
- if (next != NULL) {
- LASSERT(next != NULL);
- if (next->ld_site != NULL)
- GOTO(out, rc = -EBUSY);
-
- next->ld_site = &ed->ed_site->cs_lu;
- rc = next->ld_type->ldt_ops->ldto_device_init(env, next,
- next->ld_type->ldt_name,
- NULL);
- if (rc)
- GOTO(out, rc);
-
- /* Tricky case, I have to determine the obd type since
- * CLIO uses the different parameters to initialize
- * objects for lov & osc. */
- if (strcmp(tgt_type_name, LUSTRE_LOV_NAME) == 0)
- ed->ed_next_islov = 1;
- else
- LASSERT(strcmp(tgt_type_name,
- LUSTRE_OSC_NAME) == 0);
- } else
- LASSERT(strcmp(tgt_type_name, LUSTRE_OST_NAME) == 0);
+ LASSERT(strcmp(tgt_type_name, LUSTRE_OST_NAME) == 0);
}
ed->ed_next = next;
struct echo_device *ed = cl2echo_dev(lu2cl_dev(d));
struct lu_device *next = ed->ed_next;
- while (next && !ed->ed_next_ismd)
+ while (next)
next = next->ld_type->ldt_ops->ldto_device_fini(env, next);
return NULL;
}
CDEBUG(D_INFO, "No object exists, exiting...\n");
echo_client_cleanup(d->ld_obd);
- echo_fid_fini(d->ld_obd);
- while (next && !ed->ed_next_ismd)
+
+ while (next)
next = next->ld_type->ldt_ops->ldto_device_free(env, next);
LASSERT(ed->ed_site == lu2cl_site(d->ld_site));
.ldt_tags = LU_DEVICE_CL,
.ldt_name = LUSTRE_ECHO_CLIENT_NAME,
.ldt_ops = &echo_device_type_ops,
- .ldt_ctx_tags = LCT_CL_THREAD | LCT_MD_THREAD | LCT_DT_THREAD,
+ .ldt_ctx_tags = LCT_CL_THREAD,
};
/** @} echo_init */
return 0;
}
-static inline void echo_md_build_name(struct lu_name *lname, char *name,
- __u64 id)
-{
- sprintf(name, "%llu", id);
- lname->ln_name = name;
- lname->ln_namelen = strlen(name);
-}
-
-/* similar to mdt_attr_get_complex */
-static int echo_big_lmm_get(const struct lu_env *env, struct md_object *o,
- struct md_attr *ma)
-{
- struct echo_thread_info *info = echo_env_info(env);
- int rc;
-
- LASSERT(ma->ma_lmm_size > 0);
-
- rc = mo_xattr_get(env, o, &LU_BUF_NULL, XATTR_NAME_LOV);
- if (rc < 0)
- return rc;
-
- /* big_lmm may need to be grown */
- if (info->eti_big_lmmsize < rc) {
- int size = size_roundup_power2(rc);
-
- if (info->eti_big_lmmsize > 0) {
- /* free old buffer */
- LASSERT(info->eti_big_lmm);
- OBD_FREE_LARGE(info->eti_big_lmm,
- info->eti_big_lmmsize);
- info->eti_big_lmm = NULL;
- info->eti_big_lmmsize = 0;
- }
-
- OBD_ALLOC_LARGE(info->eti_big_lmm, size);
- if (info->eti_big_lmm == NULL)
- return -ENOMEM;
- info->eti_big_lmmsize = size;
- }
- LASSERT(info->eti_big_lmmsize >= rc);
-
- info->eti_buf.lb_buf = info->eti_big_lmm;
- info->eti_buf.lb_len = info->eti_big_lmmsize;
- rc = mo_xattr_get(env, o, &info->eti_buf, XATTR_NAME_LOV);
- if (rc < 0)
- return rc;
-
- ma->ma_valid |= MA_LOV;
- ma->ma_lmm = info->eti_big_lmm;
- ma->ma_lmm_size = rc;
-
- return 0;
-}
-
-int echo_attr_get_complex(const struct lu_env *env, struct md_object *next,
- struct md_attr *ma)
-{
- struct echo_thread_info *info = echo_env_info(env);
- struct lu_buf *buf = &info->eti_buf;
- umode_t mode = lu_object_attr(&next->mo_lu);
- int need = ma->ma_need;
- int rc = 0, rc2;
-
- ma->ma_valid = 0;
-
- if (need & MA_INODE) {
- ma->ma_need = MA_INODE;
- rc = mo_attr_get(env, next, ma);
- if (rc)
- GOTO(out, rc);
- ma->ma_valid |= MA_INODE;
- }
-
- if (need & MA_LOV) {
- if (S_ISREG(mode) || S_ISDIR(mode)) {
- LASSERT(ma->ma_lmm_size > 0);
- buf->lb_buf = ma->ma_lmm;
- buf->lb_len = ma->ma_lmm_size;
- rc2 = mo_xattr_get(env, next, buf, XATTR_NAME_LOV);
- if (rc2 > 0) {
- ma->ma_lmm_size = rc2;
- ma->ma_valid |= MA_LOV;
- } else if (rc2 == -ENODATA) {
- /* no LOV EA */
- ma->ma_lmm_size = 0;
- } else if (rc2 == -ERANGE) {
- rc2 = echo_big_lmm_get(env, next, ma);
- if (rc2 < 0)
- GOTO(out, rc = rc2);
- } else {
- GOTO(out, rc = rc2);
- }
- }
- }
-
-#ifdef CONFIG_FS_POSIX_ACL
- if (need & MA_ACL_DEF && S_ISDIR(mode)) {
- buf->lb_buf = ma->ma_acl;
- buf->lb_len = ma->ma_acl_size;
- rc2 = mo_xattr_get(env, next, buf, XATTR_NAME_ACL_DEFAULT);
- if (rc2 > 0) {
- ma->ma_acl_size = rc2;
- ma->ma_valid |= MA_ACL_DEF;
- } else if (rc2 == -ENODATA) {
- /* no ACLs */
- ma->ma_acl_size = 0;
- } else {
- GOTO(out, rc = rc2);
- }
- }
-#endif
-out:
- ma->ma_need = need;
- CDEBUG(D_INODE, "after getattr rc = %d, ma_valid = %#llx ma_lmm=%p\n",
- rc, ma->ma_valid, ma->ma_lmm);
- return rc;
-}
-
-static int
-echo_md_create_internal(const struct lu_env *env, struct echo_device *ed,
- struct md_object *parent, struct lu_fid *fid,
- struct lu_name *lname, struct md_op_spec *spec,
- struct md_attr *ma)
-{
- struct lu_object *ec_child, *child;
- struct lu_device *ld = ed->ed_next;
- struct echo_thread_info *info = echo_env_info(env);
- struct lu_fid *fid2 = &info->eti_fid2;
- struct lu_object_conf conf = { .loc_flags = LOC_F_NEW };
- int rc;
-
- rc = mdo_lookup(env, parent, lname, fid2, spec);
- if (rc == 0)
- return -EEXIST;
- else if (rc != -ENOENT)
- return rc;
-
- ec_child = lu_object_find_at(env, &ed->ed_cl.cd_lu_dev,
- fid, &conf);
- if (IS_ERR(ec_child)) {
- CERROR("Can not find the child "DFID": rc = %ld\n", PFID(fid),
- PTR_ERR(ec_child));
- return PTR_ERR(ec_child);
- }
-
- child = lu_object_locate(ec_child->lo_header, ld->ld_type);
- if (child == NULL) {
- CERROR("Can not locate the child "DFID"\n", PFID(fid));
- GOTO(out_put, rc = -EINVAL);
- }
-
- CDEBUG(D_RPCTRACE, "Start creating object "DFID" %s %p\n",
- PFID(lu_object_fid(&parent->mo_lu)), lname->ln_name, parent);
-
- /*
- * Do not perform lookup sanity check. We know that name does not exist.
- */
- spec->sp_cr_lookup = 0;
- rc = mdo_create(env, parent, lname, lu2md(child), spec, ma);
- if (rc) {
- CERROR("Can not create child "DFID": rc = %d\n", PFID(fid), rc);
- GOTO(out_put, rc);
- }
- CDEBUG(D_RPCTRACE, "End creating object "DFID" %s %p rc = %d\n",
- PFID(lu_object_fid(&parent->mo_lu)), lname->ln_name, parent, rc);
-out_put:
- lu_object_put(env, ec_child);
- return rc;
-}
-
-static int echo_set_lmm_size(const struct lu_env *env, struct lu_device *ld,
- struct md_attr *ma)
-{
- struct echo_thread_info *info = echo_env_info(env);
-
- if (strcmp(ld->ld_type->ldt_name, LUSTRE_MDD_NAME)) {
- ma->ma_lmm = (void *)&info->eti_lmm;
- ma->ma_lmm_size = sizeof(info->eti_lmm);
- } else {
- LASSERT(info->eti_big_lmmsize);
- ma->ma_lmm = info->eti_big_lmm;
- ma->ma_lmm_size = info->eti_big_lmmsize;
- }
-
- return 0;
-}
-
-static int echo_create_md_object(const struct lu_env *env,
- struct echo_device *ed,
- struct lu_object *ec_parent,
- struct lu_fid *fid,
- char *name, int namelen,
- __u64 id, __u32 mode, int count,
- int stripe_count, int stripe_offset)
-{
- struct lu_object *parent;
- struct echo_thread_info *info = echo_env_info(env);
- struct lu_name *lname = &info->eti_lname;
- struct md_op_spec *spec = &info->eti_spec;
- struct md_attr *ma = &info->eti_ma;
- struct lu_device *ld = ed->ed_next;
- int rc = 0;
- int i;
-
- if (ec_parent == NULL)
- return -1;
- parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
- if (parent == NULL)
- return -ENXIO;
-
- memset(ma, 0, sizeof(*ma));
- memset(spec, 0, sizeof(*spec));
- if (stripe_count != 0) {
- spec->sp_cr_flags |= FMODE_WRITE;
- echo_set_lmm_size(env, ld, ma);
- if (stripe_count != -1) {
- struct lov_user_md_v3 *lum = &info->eti_lum;
-
- lum->lmm_magic = LOV_USER_MAGIC_V3;
- lum->lmm_stripe_count = stripe_count;
- lum->lmm_stripe_offset = stripe_offset;
- lum->lmm_pattern = 0;
- spec->u.sp_ea.eadata = lum;
- spec->u.sp_ea.eadatalen = sizeof(*lum);
- spec->sp_cr_flags |= MDS_OPEN_HAS_EA;
- }
- }
-
- ma->ma_attr.la_mode = mode;
- ma->ma_attr.la_valid = LA_CTIME | LA_MODE;
- ma->ma_attr.la_ctime = cfs_time_current_64();
-
- if (name != NULL) {
- lname->ln_name = name;
- lname->ln_namelen = namelen;
- /* If name is specified, only create one object by name */
- rc = echo_md_create_internal(env, ed, lu2md(parent), fid, lname,
- spec, ma);
- return rc;
- }
-
- /* Create multiple object sequenced by id */
- for (i = 0; i < count; i++) {
- char *tmp_name = info->eti_name;
-
- echo_md_build_name(lname, tmp_name, id);
-
- rc = echo_md_create_internal(env, ed, lu2md(parent), fid, lname,
- spec, ma);
- if (rc) {
- CERROR("Can not create child %s: rc = %d\n", tmp_name,
- rc);
- break;
- }
- id++;
- fid->f_oid++;
- }
-
- return rc;
-}
-
-static struct lu_object *echo_md_lookup(const struct lu_env *env,
- struct echo_device *ed,
- struct md_object *parent,
- struct lu_name *lname)
-{
- struct echo_thread_info *info = echo_env_info(env);
- struct lu_fid *fid = &info->eti_fid;
- struct lu_object *child;
- int rc;
-
- CDEBUG(D_INFO, "lookup %s in parent "DFID" %p\n", lname->ln_name,
- PFID(fid), parent);
- rc = mdo_lookup(env, parent, lname, fid, NULL);
- if (rc) {
- CERROR("lookup %s: rc = %d\n", lname->ln_name, rc);
- return ERR_PTR(rc);
- }
-
- /* In the function below, .hs_keycmp resolves to
- * lu_obj_hop_keycmp() */
- /* coverity[overrun-buffer-val] */
- child = lu_object_find_at(env, &ed->ed_cl.cd_lu_dev, fid, NULL);
-
- return child;
-}
-
-static int echo_setattr_object(const struct lu_env *env,
- struct echo_device *ed,
- struct lu_object *ec_parent,
- __u64 id, int count)
-{
- struct lu_object *parent;
- struct echo_thread_info *info = echo_env_info(env);
- struct lu_name *lname = &info->eti_lname;
- char *name = info->eti_name;
- struct lu_device *ld = ed->ed_next;
- struct lu_buf *buf = &info->eti_buf;
- int rc = 0;
- int i;
-
- if (ec_parent == NULL)
- return -1;
- parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
- if (parent == NULL)
- return -ENXIO;
-
- for (i = 0; i < count; i++) {
- struct lu_object *ec_child, *child;
-
- echo_md_build_name(lname, name, id);
-
- ec_child = echo_md_lookup(env, ed, lu2md(parent), lname);
- if (IS_ERR(ec_child)) {
- CERROR("Can't find child %s: rc = %ld\n",
- lname->ln_name, PTR_ERR(ec_child));
- return PTR_ERR(ec_child);
- }
-
- child = lu_object_locate(ec_child->lo_header, ld->ld_type);
- if (child == NULL) {
- CERROR("Can not locate the child %s\n", lname->ln_name);
- lu_object_put(env, ec_child);
- rc = -EINVAL;
- break;
- }
-
- CDEBUG(D_RPCTRACE, "Start setattr object "DFID"\n",
- PFID(lu_object_fid(child)));
-
- buf->lb_buf = info->eti_xattr_buf;
- buf->lb_len = sizeof(info->eti_xattr_buf);
-
- sprintf(name, "%s.test1", XATTR_USER_PREFIX);
- rc = mo_xattr_set(env, lu2md(child), buf, name,
- LU_XATTR_CREATE);
- if (rc < 0) {
- CERROR("Can not setattr child "DFID": rc = %d\n",
- PFID(lu_object_fid(child)), rc);
- lu_object_put(env, ec_child);
- break;
- }
- CDEBUG(D_RPCTRACE, "End setattr object "DFID"\n",
- PFID(lu_object_fid(child)));
- id++;
- lu_object_put(env, ec_child);
- }
- return rc;
-}
-
-static int echo_getattr_object(const struct lu_env *env,
- struct echo_device *ed,
- struct lu_object *ec_parent,
- __u64 id, int count)
-{
- struct lu_object *parent;
- struct echo_thread_info *info = echo_env_info(env);
- struct lu_name *lname = &info->eti_lname;
- char *name = info->eti_name;
- struct md_attr *ma = &info->eti_ma;
- struct lu_device *ld = ed->ed_next;
- int rc = 0;
- int i;
-
- if (ec_parent == NULL)
- return -1;
- parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
- if (parent == NULL)
- return -ENXIO;
-
- memset(ma, 0, sizeof(*ma));
- ma->ma_need |= MA_INODE | MA_LOV | MA_PFID | MA_HSM | MA_ACL_DEF;
- ma->ma_acl = info->eti_xattr_buf;
- ma->ma_acl_size = sizeof(info->eti_xattr_buf);
-
- for (i = 0; i < count; i++) {
- struct lu_object *ec_child, *child;
-
- ma->ma_valid = 0;
- echo_md_build_name(lname, name, id);
- echo_set_lmm_size(env, ld, ma);
-
- ec_child = echo_md_lookup(env, ed, lu2md(parent), lname);
- if (IS_ERR(ec_child)) {
- CERROR("Can't find child %s: rc = %ld\n",
- lname->ln_name, PTR_ERR(ec_child));
- return PTR_ERR(ec_child);
- }
-
- child = lu_object_locate(ec_child->lo_header, ld->ld_type);
- if (child == NULL) {
- CERROR("Can not locate the child %s\n", lname->ln_name);
- lu_object_put(env, ec_child);
- return -EINVAL;
- }
-
- CDEBUG(D_RPCTRACE, "Start getattr object "DFID"\n",
- PFID(lu_object_fid(child)));
- rc = echo_attr_get_complex(env, lu2md(child), ma);
- if (rc) {
- CERROR("Can not getattr child "DFID": rc = %d\n",
- PFID(lu_object_fid(child)), rc);
- lu_object_put(env, ec_child);
- break;
- }
- CDEBUG(D_RPCTRACE, "End getattr object "DFID"\n",
- PFID(lu_object_fid(child)));
- id++;
- lu_object_put(env, ec_child);
- }
-
- return rc;
-}
-
-static int echo_lookup_object(const struct lu_env *env,
- struct echo_device *ed,
- struct lu_object *ec_parent,
- __u64 id, int count)
-{
- struct lu_object *parent;
- struct echo_thread_info *info = echo_env_info(env);
- struct lu_name *lname = &info->eti_lname;
- char *name = info->eti_name;
- struct lu_fid *fid = &info->eti_fid;
- struct lu_device *ld = ed->ed_next;
- int rc = 0;
- int i;
-
- if (ec_parent == NULL)
- return -1;
- parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
- if (parent == NULL)
- return -ENXIO;
-
- /*prepare the requests*/
- for (i = 0; i < count; i++) {
- echo_md_build_name(lname, name, id);
-
- CDEBUG(D_RPCTRACE, "Start lookup object "DFID" %s %p\n",
- PFID(lu_object_fid(parent)), lname->ln_name, parent);
-
- rc = mdo_lookup(env, lu2md(parent), lname, fid, NULL);
- if (rc) {
- CERROR("Can not lookup child %s: rc = %d\n", name, rc);
- break;
- }
- CDEBUG(D_RPCTRACE, "End lookup object "DFID" %s %p\n",
- PFID(lu_object_fid(parent)), lname->ln_name, parent);
-
- id++;
- }
- return rc;
-}
-
-static int echo_md_destroy_internal(const struct lu_env *env,
- struct echo_device *ed,
- struct md_object *parent,
- struct lu_name *lname,
- struct md_attr *ma)
-{
- struct lu_device *ld = ed->ed_next;
- struct lu_object *ec_child;
- struct lu_object *child;
- int rc;
-
- ec_child = echo_md_lookup(env, ed, parent, lname);
- if (IS_ERR(ec_child)) {
- CERROR("Can't find child %s: rc = %ld\n", lname->ln_name,
- PTR_ERR(ec_child));
- return PTR_ERR(ec_child);
- }
-
- child = lu_object_locate(ec_child->lo_header, ld->ld_type);
- if (child == NULL) {
- CERROR("Can not locate the child %s\n", lname->ln_name);
- GOTO(out_put, rc = -EINVAL);
- }
-
- CDEBUG(D_RPCTRACE, "Start destroy object "DFID" %s %p\n",
- PFID(lu_object_fid(&parent->mo_lu)), lname->ln_name, parent);
-
- rc = mdo_unlink(env, parent, lu2md(child), lname, ma, 0);
- if (rc) {
- CERROR("Can not unlink child %s: rc = %d\n",
- lname->ln_name, rc);
- GOTO(out_put, rc);
- }
- CDEBUG(D_RPCTRACE, "End destroy object "DFID" %s %p\n",
- PFID(lu_object_fid(&parent->mo_lu)), lname->ln_name, parent);
-out_put:
- lu_object_put(env, ec_child);
- return rc;
-}
-
-static int echo_destroy_object(const struct lu_env *env,
- struct echo_device *ed,
- struct lu_object *ec_parent,
- char *name, int namelen,
- __u64 id, __u32 mode,
- int count)
-{
- struct echo_thread_info *info = echo_env_info(env);
- struct lu_name *lname = &info->eti_lname;
- struct md_attr *ma = &info->eti_ma;
- struct lu_device *ld = ed->ed_next;
- struct lu_object *parent;
- int rc = 0;
- int i;
-
- parent = lu_object_locate(ec_parent->lo_header, ld->ld_type);
- if (parent == NULL)
- return -EINVAL;
-
- memset(ma, 0, sizeof(*ma));
- ma->ma_attr.la_mode = mode;
- ma->ma_attr.la_valid = LA_CTIME;
- ma->ma_attr.la_ctime = cfs_time_current_64();
- ma->ma_need = MA_INODE;
- ma->ma_valid = 0;
-
- if (name != NULL) {
- lname->ln_name = name;
- lname->ln_namelen = namelen;
- rc = echo_md_destroy_internal(env, ed, lu2md(parent), lname,
- ma);
- return rc;
- }
-
- /*prepare the requests*/
- for (i = 0; i < count; i++) {
- char *tmp_name = info->eti_name;
-
- ma->ma_valid = 0;
- echo_md_build_name(lname, tmp_name, id);
-
- rc = echo_md_destroy_internal(env, ed, lu2md(parent), lname,
- ma);
- if (rc) {
- CERROR("Can not unlink child %s: rc = %d\n", name, rc);
- break;
- }
- id++;
- }
-
- return rc;
-}
-
-static struct lu_object *echo_resolve_path(const struct lu_env *env,
- struct echo_device *ed, char *path,
- int path_len)
-{
- struct lu_device *ld = ed->ed_next;
- struct md_device *md = lu2md_dev(ld);
- struct echo_thread_info *info = echo_env_info(env);
- struct lu_fid *fid = &info->eti_fid;
- struct lu_name *lname = &info->eti_lname;
- struct lu_object *parent = NULL;
- struct lu_object *child = NULL;
- int rc = 0;
-
- /*Only support MDD layer right now*/
- rc = md->md_ops->mdo_root_get(env, md, fid);
- if (rc) {
- CERROR("get root error: rc = %d\n", rc);
- return ERR_PTR(rc);
- }
-
- /* In the function below, .hs_keycmp resolves to
- * lu_obj_hop_keycmp() */
- /* coverity[overrun-buffer-val] */
- parent = lu_object_find_at(env, &ed->ed_cl.cd_lu_dev, fid, NULL);
- if (IS_ERR(parent)) {
- CERROR("Can not find the parent "DFID": rc = %ld\n",
- PFID(fid), PTR_ERR(parent));
- return parent;
- }
-
- while (1) {
- struct lu_object *ld_parent;
- char *e;
-
- e = strsep(&path, "/");
- if (e == NULL)
- break;
-
- if (e[0] == 0) {
- if (!path || path[0] == '\0')
- break;
- continue;
- }
-
- lname->ln_name = e;
- lname->ln_namelen = strlen(e);
-
- ld_parent = lu_object_locate(parent->lo_header, ld->ld_type);
- if (ld_parent == NULL) {
- lu_object_put(env, parent);
- rc = -EINVAL;
- break;
- }
-
- child = echo_md_lookup(env, ed, lu2md(ld_parent), lname);
- lu_object_put(env, parent);
- if (IS_ERR(child)) {
- rc = (int)PTR_ERR(child);
- CERROR("lookup %s under parent "DFID": rc = %d\n",
- lname->ln_name, PFID(lu_object_fid(ld_parent)),
- rc);
- break;
- }
- parent = child;
- }
- if (rc)
- return ERR_PTR(rc);
-
- return parent;
-}
-
-static void echo_ucred_init(struct lu_env *env)
-{
- struct lu_ucred *ucred = lu_ucred(env);
-
- ucred->uc_valid = UCRED_INVALID;
-
- ucred->uc_suppgids[0] = -1;
- ucred->uc_suppgids[1] = -1;
-
- ucred->uc_uid = ucred->uc_o_uid =
- from_kuid(&init_user_ns, current_uid());
- ucred->uc_gid = ucred->uc_o_gid =
- from_kgid(&init_user_ns, current_gid());
- ucred->uc_fsuid = ucred->uc_o_fsuid =
- from_kuid(&init_user_ns, current_fsuid());
- ucred->uc_fsgid = ucred->uc_o_fsgid =
- from_kgid(&init_user_ns, current_fsgid());
- ucred->uc_cap = cfs_curproc_cap_pack();
-
- /* remove fs privilege for non-root user. */
- if (ucred->uc_fsuid)
- ucred->uc_cap &= ~CFS_CAP_FS_MASK;
- ucred->uc_valid = UCRED_NEW;
-}
-
-static void echo_ucred_fini(struct lu_env *env)
-{
- struct lu_ucred *ucred = lu_ucred(env);
- ucred->uc_valid = UCRED_INIT;
-}
-
-#define ECHO_MD_CTX_TAG (LCT_REMEMBER | LCT_MD_THREAD)
-#define ECHO_MD_SES_TAG (LCT_REMEMBER | LCT_SESSION)
-static int echo_md_handler(struct echo_device *ed, int command,
- char *path, int path_len, __u64 id, int count,
- struct obd_ioctl_data *data)
-{
- struct echo_thread_info *info;
- struct lu_device *ld = ed->ed_next;
- struct lu_env *env;
- int refcheck;
- struct lu_object *parent;
- char *name = NULL;
- int namelen = data->ioc_plen2;
- int rc = 0;
-
- if (ld == NULL) {
- CERROR("MD echo client is not being initialized properly\n");
- return -EINVAL;
- }
-
- if (strcmp(ld->ld_type->ldt_name, LUSTRE_MDD_NAME)) {
- CERROR("Only support MDD layer right now!\n");
- return -EINVAL;
- }
-
- env = cl_env_get(&refcheck);
- if (IS_ERR(env))
- return PTR_ERR(env);
-
- rc = lu_env_refill_by_tags(env, ECHO_MD_CTX_TAG, ECHO_MD_SES_TAG);
- if (rc != 0)
- GOTO(out_env, rc);
-
- /* init big_lmm buffer */
- info = echo_env_info(env);
- LASSERT(info->eti_big_lmm == NULL);
- OBD_ALLOC_LARGE(info->eti_big_lmm, MIN_MD_SIZE);
- if (info->eti_big_lmm == NULL)
- GOTO(out_env, rc = -ENOMEM);
- info->eti_big_lmmsize = MIN_MD_SIZE;
-
- parent = echo_resolve_path(env, ed, path, path_len);
- if (IS_ERR(parent)) {
- CERROR("Can not resolve the path %s: rc = %ld\n", path,
- PTR_ERR(parent));
- GOTO(out_free, rc = PTR_ERR(parent));
- }
-
- if (namelen > 0) {
- OBD_ALLOC(name, namelen + 1);
- if (name == NULL)
- GOTO(out_put, rc = -ENOMEM);
- if (copy_from_user(name, data->ioc_pbuf2, namelen))
- GOTO(out_name, rc = -EFAULT);
- }
-
- echo_ucred_init(env);
-
- switch (command) {
- case ECHO_MD_CREATE:
- case ECHO_MD_MKDIR: {
- struct echo_thread_info *info = echo_env_info(env);
- __u32 mode = data->ioc_obdo2.o_mode;
- struct lu_fid *fid = &info->eti_fid;
- int stripe_count = (int)data->ioc_obdo2.o_misc;
- int stripe_index = (int)data->ioc_obdo2.o_stripe_idx;
-
- rc = ostid_to_fid(fid, &data->ioc_obdo1.o_oi, 0);
- if (rc != 0)
- break;
-
- /* In the function below, .hs_keycmp resolves to
- * lu_obj_hop_keycmp() */
- /* coverity[overrun-buffer-val] */
- rc = echo_create_md_object(env, ed, parent, fid, name, namelen,
- id, mode, count, stripe_count,
- stripe_index);
- break;
- }
- case ECHO_MD_DESTROY:
- case ECHO_MD_RMDIR: {
- __u32 mode = data->ioc_obdo2.o_mode;
-
- rc = echo_destroy_object(env, ed, parent, name, namelen,
- id, mode, count);
- break;
- }
- case ECHO_MD_LOOKUP:
- rc = echo_lookup_object(env, ed, parent, id, count);
- break;
- case ECHO_MD_GETATTR:
- rc = echo_getattr_object(env, ed, parent, id, count);
- break;
- case ECHO_MD_SETATTR:
- rc = echo_setattr_object(env, ed, parent, id, count);
- break;
- default:
- CERROR("unknown command %d\n", command);
- rc = -EINVAL;
- break;
- }
- echo_ucred_fini(env);
-
-out_name:
- if (name != NULL)
- OBD_FREE(name, namelen + 1);
-out_put:
- lu_object_put(env, parent);
-out_free:
- LASSERT(info->eti_big_lmm);
- OBD_FREE_LARGE(info->eti_big_lmm, info->eti_big_lmmsize);
- info->eti_big_lmm = NULL;
- info->eti_big_lmmsize = 0;
-out_env:
- cl_env_put(env, &refcheck);
- return rc;
-}
-
static int echo_create_object(const struct lu_env *env, struct echo_device *ed,
int on_target, struct obdo *oa, void *ulsm,
int ulsm_nob, struct obd_trans_info *oti)
data->ioc_plen1, &dummy_oti);
GOTO(out, rc);
- case OBD_IOC_ECHO_MD: {
- int count;
- int cmd;
- char *dir = NULL;
- int dirlen;
- __u64 id;
-
- if (!capable(CFS_CAP_SYS_ADMIN))
- GOTO(out, rc = -EPERM);
-
- count = data->ioc_count;
- cmd = data->ioc_command;
-
- id = ostid_id(&data->ioc_obdo2.o_oi);
-
- dirlen = data->ioc_plen1;
- OBD_ALLOC(dir, dirlen + 1);
- if (dir == NULL)
- GOTO(out, rc = -ENOMEM);
-
- if (copy_from_user(dir, data->ioc_pbuf1, dirlen)) {
- OBD_FREE(dir, data->ioc_plen1 + 1);
- GOTO(out, rc = -EFAULT);
- }
-
- rc = echo_md_handler(ed, cmd, dir, dirlen, id, count, data);
- OBD_FREE(dir, dirlen + 1);
- GOTO(out, rc);
- }
- case OBD_IOC_ECHO_ALLOC_SEQ: {
- struct lu_env *cl_env;
- int refcheck;
- __u64 seq;
- int max_count;
-
- if (!capable(CFS_CAP_SYS_ADMIN))
- GOTO(out, rc = -EPERM);
-
- cl_env = cl_env_get(&refcheck);
- if (IS_ERR(cl_env))
- GOTO(out, rc = PTR_ERR(cl_env));
-
- rc = lu_env_refill_by_tags(cl_env, ECHO_MD_CTX_TAG,
- ECHO_MD_SES_TAG);
- if (rc != 0) {
- cl_env_put(cl_env, &refcheck);
- GOTO(out, rc);
- }
-
- rc = seq_client_get_seq(cl_env, ed->ed_cl_seq, &seq);
- cl_env_put(cl_env, &refcheck);
- if (rc < 0) {
- CERROR("%s: Can not alloc seq: rc = %d\n",
- obd->obd_name, rc);
- GOTO(out, rc);
- }
-
- if (copy_to_user(data->ioc_pbuf1, &seq, data->ioc_plen1))
- return -EFAULT;
-
- max_count = LUSTRE_METADATA_SEQ_MAX_WIDTH;
- if (copy_to_user(data->ioc_pbuf2, &max_count,
- data->ioc_plen2))
- return -EFAULT;
- GOTO(out, rc);
- }
case OBD_IOC_DESTROY:
if (!capable(CFS_CAP_SYS_ADMIN))
GOTO (out, rc = -EPERM);
ec->ec_unique = 0;
ec->ec_nstripes = 0;
- if (!strcmp(tgt->obd_type->typ_name, LUSTRE_MDT_NAME)) {
- lu_context_tags_update(ECHO_MD_CTX_TAG);
- lu_session_tags_update(ECHO_MD_SES_TAG);
- return 0;
- }
-
OBD_ALLOC(ocd, sizeof(*ocd));
if (ocd == NULL) {
CERROR("Can't alloc ocd connecting to %s\n",
static int echo_client_cleanup(struct obd_device *obddev)
{
- struct echo_device *ed = obd2echo_dev(obddev);
struct echo_client_obd *ec = &obddev->u.echo_client;
int rc;
- /*Do nothing for Metadata echo client*/
- if (ed == NULL )
- return 0;
-
- if (ed->ed_next_ismd) {
- lu_context_tags_clear(ECHO_MD_CTX_TAG);
- lu_session_tags_clear(ECHO_MD_SES_TAG);
- return 0;
- }
-
if (!list_empty(&obddev->obd_exports)) {
CERROR("still has clients!\n");
return -EBUSY;
projects / platform / kernel / linux-exynos.git / commitdiff