#include <lustre_param.h>
#include <lustre_fid.h>
#include <lustre_lmv.h>
-#include <obd_lov.h>
#include <md_object.h>
+#include <lustre_linkea.h>
#include "lod_internal.h"
}
#define LOD_CHECK_IT(env, it) \
-{ \
+do { \
LASSERT((it)->lit_obj != NULL); \
LASSERT((it)->lit_it != NULL); \
-} while(0)
+} while (0)
void lod_it_fini(const struct lu_env *env, struct dt_it *di)
{
const struct lod_it *it = (const struct lod_it *)di;
LOD_CHECK_IT(env, it);
- return it->lit_obj->do_index_ops->dio_it.rec(env, it->lit_it, rec, attr);
+ return it->lit_obj->do_index_ops->dio_it.rec(env, it->lit_it, rec,
+ attr);
+}
+
+int lod_it_rec_size(const struct lu_env *env, const struct dt_it *di,
+ __u32 attr)
+{
+ const struct lod_it *it = (const struct lod_it *)di;
+
+ LOD_CHECK_IT(env, it);
+ return it->lit_obj->do_index_ops->dio_it.rec_size(env, it->lit_it,
+ attr);
}
__u64 lod_it_store(const struct lu_env *env, const struct dt_it *di)
}
int lod_it_key_rec(const struct lu_env *env, const struct dt_it *di,
- void* key_rec)
+ void *key_rec)
{
const struct lod_it *it = (const struct lod_it *)di;
LOD_CHECK_IT(env, it);
- return it->lit_obj->do_index_ops->dio_it.key_rec(env, it->lit_it, key_rec);
+ return it->lit_obj->do_index_ops->dio_it.key_rec(env, it->lit_it,
+ key_rec);
}
static struct dt_index_operations lod_index_ops = {
.key = lod_it_key,
.key_size = lod_it_key_size,
.rec = lod_it_rec,
+ .rec_size = lod_it_rec_size,
.store = lod_it_store,
.load = lod_it_load,
.key_rec = lod_it_key_rec,
}
};
+/**
+ * Implementation of dt_index_operations:: dio_it.init
+ *
+ * This function is to initialize the iterator for striped directory,
+ * basically these lod_striped_it_xxx will just locate the stripe
+ * and call the correspondent api of its next lower layer.
+ *
+ * \param[in] env execution environment.
+ * \param[in] dt the striped directory object to be iterated.
+ * \param[in] attr the attribute of iterator, mostly used to indicate
+ * the entry attribute in the object to be iterated.
+ * \param[in] capa capability(useless in current implementation)
+ *
+ * \retval initialized iterator(dt_it) if successful initialize the
+ * iteration. lit_stripe_index will be used to indicate the
+ * current iterate position among stripes.
+ * \retval ERR pointer if initialization is failed.
+ */
+static struct dt_it *lod_striped_it_init(const struct lu_env *env,
+ struct dt_object *dt, __u32 attr,
+ struct lustre_capa *capa)
+{
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next;
+ struct lod_it *it = &lod_env_info(env)->lti_it;
+ struct dt_it *it_next;
+ ENTRY;
+
+ LASSERT(lo->ldo_stripenr > 0);
+ next = lo->ldo_stripe[0];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ it_next = next->do_index_ops->dio_it.init(env, next, attr, capa);
+ if (IS_ERR(it_next))
+ return it_next;
+
+ /* currently we do not use more than one iterator per thread
+ * so we store it in thread info. if at some point we need
+ * more active iterators in a single thread, we can allocate
+ * additional ones */
+ LASSERT(it->lit_obj == NULL);
+
+ it->lit_stripe_index = 0;
+ it->lit_attr = attr;
+ it->lit_it = it_next;
+ it->lit_obj = dt;
+
+ return (struct dt_it *)it;
+}
+
+#define LOD_CHECK_STRIPED_IT(env, it, lo) \
+do { \
+ LASSERT((it)->lit_obj != NULL); \
+ LASSERT((it)->lit_it != NULL); \
+ LASSERT((lo)->ldo_stripenr > 0); \
+ LASSERT((it)->lit_stripe_index < (lo)->ldo_stripenr); \
+} while (0)
+
+/**
+ * Implementation of dt_index_operations:: dio_it.fini
+ *
+ * This function is to finish the iterator for striped directory.
+ *
+ * \param[in] env execution environment.
+ * \param[in] di the iterator for the striped directory
+ *
+ */
+static void lod_striped_it_fini(const struct lu_env *env, struct dt_it *di)
+{
+ struct lod_it *it = (struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ next->do_index_ops->dio_it.fini(env, it->lit_it);
+
+ /* the iterator not in use any more */
+ it->lit_obj = NULL;
+ it->lit_it = NULL;
+ it->lit_stripe_index = 0;
+}
+
+/**
+ * Implementation of dt_index_operations:: dio_it.get
+ *
+ * This function is to position the iterator with given key
+ *
+ * \param[in] env execution environment.
+ * \param[in] di the iterator for striped directory.
+ * \param[in] key the key the iterator will be positioned.
+ *
+ * \retval 0 if successfully position iterator by the key.
+ * \retval negative error if position is failed.
+ */
+static int lod_striped_it_get(const struct lu_env *env, struct dt_it *di,
+ const struct dt_key *key)
+{
+ const struct lod_it *it = (const struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+ ENTRY;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ return next->do_index_ops->dio_it.get(env, it->lit_it, key);
+}
+
+/**
+ * Implementation of dt_index_operations:: dio_it.put
+ *
+ * This function is supposed to be the pair of it_get, but currently do
+ * nothing. see (osd_it_ea_put or osd_index_it_put)
+ */
+static void lod_striped_it_put(const struct lu_env *env, struct dt_it *di)
+{
+ struct lod_it *it = (struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ return next->do_index_ops->dio_it.put(env, it->lit_it);
+}
+
+/**
+ * Implementation of dt_index_operations:: dio_it.next
+ *
+ * This function is to position the iterator to the next entry, if current
+ * stripe is finished by checking the return value of next() in current
+ * stripe. it will go to next stripe. In the mean time, the sub-iterator
+ * for next stripe needs to be initialized.
+ *
+ * \param[in] env execution environment.
+ * \param[in] di the iterator for striped directory.
+ *
+ * \retval 0 if successfully position iterator to the next entry.
+ * \retval negative error if position is failed.
+ */
+static int lod_striped_it_next(const struct lu_env *env, struct dt_it *di)
+{
+ struct lod_it *it = (struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+ struct dt_it *it_next;
+ int rc;
+ ENTRY;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+again:
+ rc = next->do_index_ops->dio_it.next(env, it->lit_it);
+ if (rc < 0)
+ RETURN(rc);
+
+ if (rc == 0 && it->lit_stripe_index == 0)
+ RETURN(rc);
+
+ if (rc == 0 && it->lit_stripe_index > 0) {
+ struct lu_dirent *ent;
+
+ ent = (struct lu_dirent *)lod_env_info(env)->lti_key;
+
+ rc = next->do_index_ops->dio_it.rec(env, it->lit_it,
+ (struct dt_rec *)ent,
+ it->lit_attr);
+ if (rc != 0)
+ RETURN(rc);
+
+ /* skip . and .. for slave stripe */
+ if ((strncmp(ent->lde_name, ".",
+ le16_to_cpu(ent->lde_namelen)) == 0 &&
+ le16_to_cpu(ent->lde_namelen) == 1) ||
+ (strncmp(ent->lde_name, "..",
+ le16_to_cpu(ent->lde_namelen)) == 0 &&
+ le16_to_cpu(ent->lde_namelen) == 2))
+ goto again;
+
+ RETURN(rc);
+ }
+
+ /* go to next stripe */
+ if (it->lit_stripe_index + 1 >= lo->ldo_stripenr)
+ RETURN(1);
+
+ it->lit_stripe_index++;
+
+ next->do_index_ops->dio_it.put(env, it->lit_it);
+ next->do_index_ops->dio_it.fini(env, it->lit_it);
+
+ rc = next->do_ops->do_index_try(env, next, &dt_directory_features);
+ if (rc != 0)
+ RETURN(rc);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ it_next = next->do_index_ops->dio_it.init(env, next, it->lit_attr,
+ BYPASS_CAPA);
+ if (!IS_ERR(it_next)) {
+ it->lit_it = it_next;
+ goto again;
+ } else {
+ rc = PTR_ERR(it_next);
+ }
+
+ RETURN(rc);
+}
+
+/**
+ * Implementation of dt_index_operations:: dio_it.key
+ *
+ * This function is to get the key of the iterator at current position.
+ *
+ * \param[in] env execution environment.
+ * \param[in] di the iterator for striped directory.
+ *
+ * \retval key(dt_key) if successfully get the key.
+ * \retval negative error if can not get the key.
+ */
+static struct dt_key *lod_striped_it_key(const struct lu_env *env,
+ const struct dt_it *di)
+{
+ const struct lod_it *it = (const struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ return next->do_index_ops->dio_it.key(env, it->lit_it);
+}
+
+/**
+ * Implementation of dt_index_operations:: dio_it.key_size
+ *
+ * This function is to get the key_size of current key.
+ *
+ * \param[in] env execution environment.
+ * \param[in] di the iterator for striped directory.
+ *
+ * \retval key_size if successfully get the key_size.
+ * \retval negative error if can not get the key_size.
+ */
+static int lod_striped_it_key_size(const struct lu_env *env,
+ const struct dt_it *di)
+{
+ struct lod_it *it = (struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ return next->do_index_ops->dio_it.key_size(env, it->lit_it);
+}
+
+/**
+ * Implementation of dt_index_operations:: dio_it.rec
+ *
+ * This function is to get the record at current position.
+ *
+ * \param[in] env execution environment.
+ * \param[in] di the iterator for striped directory.
+ * \param[in] attr the attribute of iterator, mostly used to indicate
+ * the entry attribute in the object to be iterated.
+ * \param[out] rec hold the return record.
+ *
+ * \retval 0 if successfully get the entry.
+ * \retval negative error if can not get entry.
+ */
+static int lod_striped_it_rec(const struct lu_env *env, const struct dt_it *di,
+ struct dt_rec *rec, __u32 attr)
+{
+ const struct lod_it *it = (const struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ return next->do_index_ops->dio_it.rec(env, it->lit_it, rec, attr);
+}
+
+/**
+ * Implementation of dt_index_operations:: dio_it.rec_size
+ *
+ * This function is to get the record_size at current record.
+ *
+ * \param[in] env execution environment.
+ * \param[in] di the iterator for striped directory.
+ * \param[in] attr the attribute of iterator, mostly used to indicate
+ * the entry attribute in the object to be iterated.
+ *
+ * \retval rec_size if successfully get the entry size.
+ * \retval negative error if can not get entry size.
+ */
+static int lod_striped_it_rec_size(const struct lu_env *env,
+ const struct dt_it *di, __u32 attr)
+{
+ struct lod_it *it = (struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ return next->do_index_ops->dio_it.rec_size(env, it->lit_it, attr);
+}
+
+/**
+ * Implementation of dt_index_operations:: dio_it.store
+ *
+ * This function will a cookie for current position of the iterator head,
+ * so that user can use this cookie to load/start the iterator next time.
+ *
+ * \param[in] env execution environment.
+ * \param[in] di the iterator for striped directory.
+ *
+ * \retval the cookie.
+ */
+static __u64 lod_striped_it_store(const struct lu_env *env,
+ const struct dt_it *di)
+{
+ const struct lod_it *it = (const struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ return next->do_index_ops->dio_it.store(env, it->lit_it);
+}
+
+/**
+ * Implementation of dt_index_operations:: dio_it.load
+ *
+ * This function will position the iterator with the given hash(usually
+ * get from store),
+ *
+ * \param[in] env execution environment.
+ * \param[in] di the iterator for striped directory.
+ * \param[in] hash the given hash.
+ *
+ * \retval >0 if successfuly load the iterator to the given position.
+ * \retval <0 if load is failed.
+ */
+static int lod_striped_it_load(const struct lu_env *env,
+ const struct dt_it *di, __u64 hash)
+{
+ const struct lod_it *it = (const struct lod_it *)di;
+ struct lod_object *lo = lod_dt_obj(it->lit_obj);
+ struct dt_object *next;
+
+ LOD_CHECK_STRIPED_IT(env, it, lo);
+
+ next = lo->ldo_stripe[it->lit_stripe_index];
+ LASSERT(next != NULL);
+ LASSERT(next->do_index_ops != NULL);
+
+ return next->do_index_ops->dio_it.load(env, it->lit_it, hash);
+}
+
+static struct dt_index_operations lod_striped_index_ops = {
+ .dio_lookup = lod_index_lookup,
+ .dio_declare_insert = lod_declare_index_insert,
+ .dio_insert = lod_index_insert,
+ .dio_declare_delete = lod_declare_index_delete,
+ .dio_delete = lod_index_delete,
+ .dio_it = {
+ .init = lod_striped_it_init,
+ .fini = lod_striped_it_fini,
+ .get = lod_striped_it_get,
+ .put = lod_striped_it_put,
+ .next = lod_striped_it_next,
+ .key = lod_striped_it_key,
+ .key_size = lod_striped_it_key_size,
+ .rec = lod_striped_it_rec,
+ .rec_size = lod_striped_it_rec_size,
+ .store = lod_striped_it_store,
+ .load = lod_striped_it_load,
+ }
+};
+
+/**
+ * Append the FID for each shard of the striped directory after the
+ * given LMV EA header.
+ *
+ * To simplify striped directory and the consistency verification,
+ * we only store the LMV EA header on disk, for both master object
+ * and slave objects. When someone wants to know the whole LMV EA,
+ * such as client readdir(), we can build the entrie LMV EA on the
+ * MDT side (in RAM) via iterating the sub-directory entries that
+ * are contained in the master object of the stripe directory.
+ *
+ * For the master object of the striped directroy, the valid name
+ * for each shard is composed of the ${shard_FID}:${shard_idx}.
+ *
+ * There may be holes in the LMV EA if some shards' name entries
+ * are corrupted or lost.
+ *
+ * \param[in] env pointer to the thread context
+ * \param[in] lo pointer to the master object of the striped directory
+ * \param[in] buf pointer to the lu_buf which will hold the LMV EA
+ * \param[in] resize whether re-allocate the buffer if it is not big enough
+ *
+ * \retval positive size of the LMV EA
+ * \retval 0 for nothing to be loaded
+ * \retval negative error number on failure
+ */
+int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
+ struct lu_buf *buf, bool resize)
+{
+ struct lu_dirent *ent =
+ (struct lu_dirent *)lod_env_info(env)->lti_key;
+ struct lod_device *lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
+ struct dt_object *obj = dt_object_child(&lo->ldo_obj);
+ struct lmv_mds_md_v1 *lmv1 = buf->lb_buf;
+ struct dt_it *it;
+ const struct dt_it_ops *iops;
+ __u32 stripes;
+ __u32 magic = le32_to_cpu(lmv1->lmv_magic);
+ int size;
+ int rc;
+ ENTRY;
+
+ /* If it is not a striped directory, then load nothing. */
+ if (magic != LMV_MAGIC_V1)
+ RETURN(0);
+
+ /* If it is in migration (or failure), then load nothing. */
+ if (le32_to_cpu(lmv1->lmv_hash_type) & LMV_HASH_FLAG_MIGRATION)
+ RETURN(0);
+
+ stripes = le32_to_cpu(lmv1->lmv_stripe_count);
+ if (stripes < 1)
+ RETURN(0);
+
+ size = lmv_mds_md_size(stripes, magic);
+ if (buf->lb_len < size) {
+ struct lu_buf tbuf;
+
+ if (!resize)
+ RETURN(-ERANGE);
+
+ tbuf = *buf;
+ buf->lb_buf = NULL;
+ buf->lb_len = 0;
+ lu_buf_alloc(buf, size);
+ lmv1 = buf->lb_buf;
+ if (lmv1 == NULL)
+ RETURN(-ENOMEM);
+
+ memcpy(buf->lb_buf, tbuf.lb_buf, tbuf.lb_len);
+ }
+
+ if (unlikely(!dt_try_as_dir(env, obj)))
+ RETURN(-ENOTDIR);
+
+ memset(&lmv1->lmv_stripe_fids[0], 0, stripes * sizeof(struct lu_fid));
+ iops = &obj->do_index_ops->dio_it;
+ it = iops->init(env, obj, LUDA_64BITHASH, BYPASS_CAPA);
+ if (IS_ERR(it))
+ RETURN(PTR_ERR(it));
+
+ rc = iops->load(env, it, 0);
+ if (rc == 0)
+ rc = iops->next(env, it);
+ else if (rc > 0)
+ rc = 0;
+
+ while (rc == 0) {
+ char name[FID_LEN + 2] = "";
+ struct lu_fid fid;
+ __u32 index;
+ int len;
+
+ rc = iops->rec(env, it, (struct dt_rec *)ent, LUDA_64BITHASH);
+ if (rc != 0)
+ break;
+
+ rc = -EIO;
+
+ fid_le_to_cpu(&fid, &ent->lde_fid);
+ ent->lde_namelen = le16_to_cpu(ent->lde_namelen);
+ if (ent->lde_name[0] == '.') {
+ if (ent->lde_namelen == 1)
+ goto next;
+
+ if (ent->lde_namelen == 2 && ent->lde_name[1] == '.')
+ goto next;
+ }
+
+ len = snprintf(name, FID_LEN + 1, DFID":", PFID(&ent->lde_fid));
+ /* The ent->lde_name is composed of ${FID}:${index} */
+ if (ent->lde_namelen < len + 1 ||
+ memcmp(ent->lde_name, name, len) != 0) {
+ CDEBUG(lod->lod_lmv_failout ? D_ERROR : D_INFO,
+ "%s: invalid shard name %.*s with the FID "DFID
+ " for the striped directory "DFID", %s\n",
+ lod2obd(lod)->obd_name, ent->lde_namelen,
+ ent->lde_name, PFID(&fid),
+ PFID(lu_object_fid(&obj->do_lu)),
+ lod->lod_lmv_failout ? "failout" : "skip");
+
+ if (lod->lod_lmv_failout)
+ break;
+
+ goto next;
+ }
+
+ index = 0;
+ do {
+ if (ent->lde_name[len] < '0' ||
+ ent->lde_name[len] > '9') {
+ CDEBUG(lod->lod_lmv_failout ? D_ERROR : D_INFO,
+ "%s: invalid shard name %.*s with the "
+ "FID "DFID" for the striped directory "
+ DFID", %s\n",
+ lod2obd(lod)->obd_name, ent->lde_namelen,
+ ent->lde_name, PFID(&fid),
+ PFID(lu_object_fid(&obj->do_lu)),
+ lod->lod_lmv_failout ?
+ "failout" : "skip");
+
+ if (lod->lod_lmv_failout)
+ break;
+
+ goto next;
+ }
+
+ index = index * 10 + ent->lde_name[len++] - '0';
+ } while (len < ent->lde_namelen);
+
+ if (len == ent->lde_namelen) {
+ /* Out of LMV EA range. */
+ if (index >= stripes) {
+ CERROR("%s: the shard %.*s for the striped "
+ "directory "DFID" is out of the known "
+ "LMV EA range [0 - %u], failout\n",
+ lod2obd(lod)->obd_name, ent->lde_namelen,
+ ent->lde_name,
+ PFID(lu_object_fid(&obj->do_lu)),
+ stripes - 1);
+
+ break;
+ }
+
+ /* The slot has been occupied. */
+ if (!fid_is_zero(&lmv1->lmv_stripe_fids[index])) {
+ struct lu_fid fid0;
+
+ fid_le_to_cpu(&fid0,
+ &lmv1->lmv_stripe_fids[index]);
+ CERROR("%s: both the shard "DFID" and "DFID
+ " for the striped directory "DFID
+ " claim the same LMV EA slot at the "
+ "index %d, failout\n",
+ lod2obd(lod)->obd_name,
+ PFID(&fid0), PFID(&fid),
+ PFID(lu_object_fid(&obj->do_lu)), index);
+
+ break;
+ }
+
+ /* stored as LE mode */
+ lmv1->lmv_stripe_fids[index] = ent->lde_fid;
+
+next:
+ rc = iops->next(env, it);
+ }
+ }
+
+ iops->put(env, it);
+ iops->fini(env, it);
+
+ RETURN(rc > 0 ? lmv_mds_md_size(stripes, magic) : rc);
+}
+
+/**
+ * Implementation of dt_object_operations:: do_index_try
+ *
+ * This function will try to initialize the index api pointer for the
+ * given object, usually it the entry point of the index api. i.e.
+ * the index object should be initialized in index_try, then start
+ * using index api. For striped directory, it will try to initialize
+ * all of its sub_stripes.
+ *
+ * \param[in] env execution environment.
+ * \param[in] dt the index object to be initialized.
+ * \param[in] feat the features of this object, for example fixed or
+ * variable key size etc.
+ *
+ * \retval >0 if the initialization is successful.
+ * \retval <0 if the initialization is failed.
+ */
+static int lod_index_try(const struct lu_env *env, struct dt_object *dt,
+ const struct dt_index_features *feat)
+{
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ int rc;
+ ENTRY;
+
+ LASSERT(next->do_ops);
+ LASSERT(next->do_ops->do_index_try);
+
+ rc = lod_load_striping_locked(env, lo);
+ if (rc != 0)
+ RETURN(rc);
+
+ rc = next->do_ops->do_index_try(env, next, feat);
+ if (rc != 0)
+ RETURN(rc);
+
+ if (lo->ldo_stripenr > 0) {
+ int i;
+
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ if (dt_object_exists(lo->ldo_stripe[i]) == 0)
+ continue;
+ rc = lo->ldo_stripe[i]->do_ops->do_index_try(env,
+ lo->ldo_stripe[i], feat);
+ if (rc != 0)
+ RETURN(rc);
+ }
+ dt->do_index_ops = &lod_striped_index_ops;
+ } else {
+ dt->do_index_ops = &lod_index_ops;
+ }
+
+ RETURN(rc);
+}
+
static void lod_object_read_lock(const struct lu_env *env,
struct dt_object *dt, unsigned role)
{
struct lu_attr *attr,
struct lustre_capa *capa)
{
+ /* Note: for striped directory, client will merge attributes
+ * from all of the sub-stripes see lmv_merge_attr(), and there
+ * no MDD logic depend on directory nlink/size/time, so we can
+ * always use master inode nlink and size for now. */
return dt_attr_get(env, dt_object_child(dt), attr, capa);
}
+/**
+ * Mark all of sub-stripes dead of the striped directory.
+ **/
+static int lod_mark_dead_object(const struct lu_env *env,
+ struct dt_object *dt,
+ struct thandle *handle,
+ bool declare)
+{
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lmv_mds_md_v1 *lmv;
+ __u32 dead_hash_type;
+ int rc;
+ int i;
+
+ ENTRY;
+
+ if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
+ RETURN(0);
+
+ rc = lod_load_striping_locked(env, lo);
+ if (rc != 0)
+ RETURN(rc);
+
+ if (lo->ldo_stripenr == 0)
+ RETURN(0);
+
+ rc = lod_get_lmv_ea(env, lo);
+ if (rc <= 0)
+ RETURN(rc);
+
+ lmv = lod_env_info(env)->lti_ea_store;
+ lmv->lmv_magic = cpu_to_le32(LMV_MAGIC_STRIPE);
+ dead_hash_type = le32_to_cpu(lmv->lmv_hash_type) | LMV_HASH_FLAG_DEAD;
+ lmv->lmv_hash_type = cpu_to_le32(dead_hash_type);
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ struct lu_buf buf;
+
+ lmv->lmv_master_mdt_index = i;
+ buf.lb_buf = lmv;
+ buf.lb_len = sizeof(*lmv);
+ if (declare) {
+ rc = dt_declare_xattr_set(env, lo->ldo_stripe[i], &buf,
+ XATTR_NAME_LMV,
+ LU_XATTR_REPLACE, handle);
+ } else {
+ rc = dt_xattr_set(env, lo->ldo_stripe[i], &buf,
+ XATTR_NAME_LMV, LU_XATTR_REPLACE,
+ handle, BYPASS_CAPA);
+ }
+ if (rc != 0)
+ break;
+ }
+
+ RETURN(rc);
+}
+
static int lod_declare_attr_set(const struct lu_env *env,
struct dt_object *dt,
const struct lu_attr *attr,
int rc, i;
ENTRY;
+ /* Set dead object on all other stripes */
+ if (attr->la_valid & LA_FLAGS && !(attr->la_valid & ~LA_FLAGS) &&
+ attr->la_flags & LUSTRE_SLAVE_DEAD_FL) {
+ rc = lod_mark_dead_object(env, dt, handle, true);
+ RETURN(rc);
+ }
+
/*
* declare setattr on the local object
*/
if (lo->ldo_stripenr == 0)
RETURN(0);
- if (!(attr->la_valid & ~(LA_ATIME | LA_MTIME | LA_CTIME))) {
- struct lu_attr *la = &lod_env_info(env)->lti_attr;
- bool setattr_time = false;
-
- rc = dt_attr_get(env, dt_object_child(dt), la,
- BYPASS_CAPA);
- if (rc != 0)
- RETURN(rc);
-
- /* If it will only setattr time, it will only set
- * time < current_time */
- if ((attr->la_valid & LA_ATIME &&
- attr->la_atime < la->la_atime) ||
- (attr->la_valid & LA_CTIME &&
- attr->la_ctime < la->la_ctime) ||
- (attr->la_valid & LA_MTIME &&
- attr->la_mtime < la->la_mtime))
- setattr_time = true;
-
- if (!setattr_time)
- RETURN(0);
- }
/*
* if object is striped declare changes on the stripes
*/
LASSERT(lo->ldo_stripe);
for (i = 0; i < lo->ldo_stripenr; i++) {
- LASSERT(lo->ldo_stripe[i]);
-
- rc = dt_declare_attr_set(env, lo->ldo_stripe[i], attr, handle);
- if (rc) {
- CERROR("failed declaration: %d\n", rc);
- break;
+ if (likely(lo->ldo_stripe[i] != NULL)) {
+ rc = dt_declare_attr_set(env, lo->ldo_stripe[i], attr,
+ handle);
+ if (rc != 0) {
+ CERROR("failed declaration: %d\n", rc);
+ break;
+ }
}
}
struct thandle *handle,
struct lustre_capa *capa)
{
- struct dt_object *next = dt_object_child(dt);
- struct lod_object *lo = lod_dt_obj(dt);
- int rc, i;
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int rc, i;
ENTRY;
+ /* Set dead object on all other stripes */
+ if (attr->la_valid & LA_FLAGS && !(attr->la_valid & ~LA_FLAGS) &&
+ attr->la_flags & LUSTRE_SLAVE_DEAD_FL) {
+ rc = lod_mark_dead_object(env, dt, handle, false);
+ RETURN(rc);
+ }
+
/*
* apply changes to the local object
*/
if (lo->ldo_stripenr == 0)
RETURN(0);
- if (!(attr->la_valid & ~(LA_ATIME | LA_MTIME | LA_CTIME))) {
- struct lu_attr *la = &lod_env_info(env)->lti_attr;
- bool setattr_time = false;
-
- rc = dt_attr_get(env, dt_object_child(dt), la,
- BYPASS_CAPA);
- if (rc != 0)
- RETURN(rc);
-
- /* If it will only setattr time, it will only set
- * time < current_time */
- if ((attr->la_valid & LA_ATIME &&
- attr->la_atime < la->la_atime) ||
- (attr->la_valid & LA_CTIME &&
- attr->la_ctime < la->la_ctime) ||
- (attr->la_valid & LA_MTIME &&
- attr->la_mtime < la->la_mtime))
- setattr_time = true;
-
- if (!setattr_time)
- RETURN(0);
- }
-
/*
* if object is striped, apply changes to all the stripes
*/
LASSERT(lo->ldo_stripe);
for (i = 0; i < lo->ldo_stripenr; i++) {
- LASSERT(lo->ldo_stripe[i]);
- rc = dt_attr_set(env, lo->ldo_stripe[i], attr, handle, capa);
- if (rc) {
- CERROR("failed declaration: %d\n", rc);
- break;
+ if (likely(lo->ldo_stripe[i] != NULL)) {
+ if (dt_object_exists(lo->ldo_stripe[i]) == 0)
+ continue;
+
+ rc = dt_attr_set(env, lo->ldo_stripe[i], attr,
+ handle, capa);
+ if (rc != 0) {
+ CERROR("failed declaration: %d\n", rc);
+ break;
+ }
}
}
ENTRY;
rc = dt_xattr_get(env, dt_object_child(dt), buf, name, capa);
+ if (strcmp(name, XATTR_NAME_LMV) == 0) {
+ struct lmv_mds_md_v1 *lmv1;
+ int rc1 = 0;
+
+ if (rc > sizeof(*lmv1))
+ RETURN(rc);
+
+ if (rc < sizeof(*lmv1))
+ RETURN(rc = rc > 0 ? -EINVAL : rc);
+
+ if (buf->lb_buf == NULL || buf->lb_len == 0) {
+ CLASSERT(sizeof(*lmv1) <= sizeof(info->lti_key));
+
+ info->lti_buf.lb_buf = info->lti_key;
+ info->lti_buf.lb_len = sizeof(*lmv1);
+ rc = dt_xattr_get(env, dt_object_child(dt),
+ &info->lti_buf, name, capa);
+ if (unlikely(rc != sizeof(*lmv1)))
+ RETURN(rc = rc > 0 ? -EINVAL : rc);
+
+ lmv1 = info->lti_buf.lb_buf;
+ /* The on-disk LMV EA only contains header, but the
+ * returned LMV EA size should contain the space for
+ * the FIDs of all shards of the striped directory. */
+ if (le32_to_cpu(lmv1->lmv_magic) == LMV_MAGIC_V1)
+ rc = lmv_mds_md_size(
+ le32_to_cpu(lmv1->lmv_stripe_count),
+ LMV_MAGIC_V1);
+ } else {
+ rc1 = lod_load_lmv_shards(env, lod_dt_obj(dt),
+ buf, false);
+ }
+
+ RETURN(rc = rc1 != 0 ? rc1 : rc);
+ }
+
if (rc != -ENODATA || !S_ISDIR(dt->do_lu.lo_header->loh_attr & S_IFMT))
RETURN(rc);
if (unlikely(le32_to_cpu(lum->lum_stripe_count) == 0))
GOTO(out, rc = -EINVAL);
-
- if (unlikely(le32_to_cpu(lum->lum_stripe_count) >
- lod->lod_remote_mdt_count + 1))
- GOTO(out, rc = -EINVAL);
out:
if (rc != 0)
CERROR("%s: invalid lmv_user_md: magic = %x, "
return rc;
}
+/**
+ * Master LMVEA will be same as slave LMVEA, except
+ * 1. different magic
+ * 2. lmv_master_mdt_index on slave LMV EA will be stripe_index.
+ */
+static void lod_prep_slave_lmv_md(struct lmv_mds_md_v1 *slave_lmv,
+ const struct lmv_mds_md_v1 *master_lmv)
+{
+ *slave_lmv = *master_lmv;
+ slave_lmv->lmv_magic = cpu_to_le32(LMV_MAGIC_STRIPE);
+}
+
int lod_prep_lmv_md(const struct lu_env *env, struct dt_object *dt,
struct lu_buf *lmv_buf)
{
struct lod_object *lo = lod_dt_obj(dt);
struct lmv_mds_md_v1 *lmm1;
int stripe_count;
- int lmm_size;
int type = LU_SEQ_RANGE_ANY;
- int i;
int rc;
__u32 mdtidx;
ENTRY;
LASSERT(lo->ldo_dir_striped != 0);
LASSERT(lo->ldo_stripenr > 0);
- stripe_count = lo->ldo_stripenr + 1;
- lmm_size = lmv_mds_md_size(stripe_count, LMV_MAGIC);
- if (info->lti_ea_store_size < lmm_size) {
- rc = lod_ea_store_resize(info, lmm_size);
+ stripe_count = lo->ldo_stripenr;
+ /* Only store the LMV EA heahder on the disk. */
+ if (info->lti_ea_store_size < sizeof(*lmm1)) {
+ rc = lod_ea_store_resize(info, sizeof(*lmm1));
if (rc != 0)
RETURN(rc);
+ } else {
+ memset(info->lti_ea_store, 0, sizeof(*lmm1));
}
lmm1 = (struct lmv_mds_md_v1 *)info->lti_ea_store;
RETURN(rc);
lmm1->lmv_master_mdt_index = cpu_to_le32(mdtidx);
- fid_cpu_to_le(&lmm1->lmv_stripe_fids[0], lu_object_fid(&dt->do_lu));
- for (i = 0; i < lo->ldo_stripenr; i++) {
- struct dt_object *dto;
-
- dto = lo->ldo_stripe[i];
- LASSERT(dto != NULL);
- fid_cpu_to_le(&lmm1->lmv_stripe_fids[i + 1],
- lu_object_fid(&dto->do_lu));
- }
-
lmv_buf->lb_buf = info->lti_ea_store;
- lmv_buf->lb_len = lmm_size;
+ lmv_buf->lb_len = sizeof(*lmm1);
lo->ldo_dir_striping_cached = 1;
RETURN(rc);
int rc = 0;
ENTRY;
- if (le32_to_cpu(lmv1->lmv_magic) == LMV_MAGIC_MIGRATE)
+ if (le32_to_cpu(lmv1->lmv_hash_type) & LMV_HASH_FLAG_MIGRATION)
RETURN(0);
+ if (le32_to_cpu(lmv1->lmv_magic) == LMV_MAGIC_STRIPE) {
+ lo->ldo_dir_slave_stripe = 1;
+ RETURN(0);
+ }
+
if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
RETURN(-EINVAL);
- if (le32_to_cpu(lmv1->lmv_stripe_count) <= 1)
+ if (le32_to_cpu(lmv1->lmv_stripe_count) < 1)
RETURN(0);
- fid_le_to_cpu(fid, &lmv1->lmv_stripe_fids[0]);
- /* Do not load striping information for slave inode */
- if (!lu_fid_eq(fid, lu_object_fid(&lo->ldo_obj.do_lu))) {
- lo->ldo_dir_slave_stripe = 1;
- RETURN(0);
- }
-
LASSERT(lo->ldo_stripe == NULL);
OBD_ALLOC(stripe, sizeof(stripe[0]) *
- (le32_to_cpu(lmv1->lmv_stripe_count) - 1));
+ (le32_to_cpu(lmv1->lmv_stripe_count)));
if (stripe == NULL)
RETURN(-ENOMEM);
- /* skip master stripe */
- for (i = 1; i < le32_to_cpu(lmv1->lmv_stripe_count); i++) {
- struct lod_tgt_desc *tgt;
- int idx;
- int type = LU_SEQ_RANGE_ANY;
+ for (i = 0; i < le32_to_cpu(lmv1->lmv_stripe_count); i++) {
+ struct dt_device *tgt_dt;
struct dt_object *dto;
+ int type = LU_SEQ_RANGE_ANY;
+ __u32 idx;
fid_le_to_cpu(fid, &lmv1->lmv_stripe_fids[i]);
+ if (!fid_is_sane(fid))
+ GOTO(out, rc = -ESTALE);
+
rc = lod_fld_lookup(env, lod, fid, &idx, &type);
if (rc != 0)
GOTO(out, rc);
- tgt = LTD_TGT(ltd, idx);
- if (tgt == NULL)
- GOTO(out, rc = -ESTALE);
+ if (idx == lod2lu_dev(lod)->ld_site->ld_seq_site->ss_node_id) {
+ tgt_dt = lod->lod_child;
+ } else {
+ struct lod_tgt_desc *tgt;
+
+ tgt = LTD_TGT(ltd, idx);
+ if (tgt == NULL)
+ GOTO(out, rc = -ESTALE);
+ tgt_dt = tgt->ltd_tgt;
+ }
- dto = dt_locate_at(env, tgt->ltd_tgt, fid,
+ dto = dt_locate_at(env, tgt_dt, fid,
lo->ldo_obj.do_lu.lo_dev->ld_site->ls_top_dev,
NULL);
if (IS_ERR(dto))
GOTO(out, rc = PTR_ERR(dto));
- stripe[i - 1] = dto;
+ stripe[i] = dto;
}
out:
lo->ldo_stripe = stripe;
- lo->ldo_stripenr = le32_to_cpu(lmv1->lmv_stripe_count) - 1;
- lo->ldo_stripes_allocated = le32_to_cpu(lmv1->lmv_stripe_count) - 1;
+ lo->ldo_stripenr = le32_to_cpu(lmv1->lmv_stripe_count);
+ lo->ldo_stripes_allocated = le32_to_cpu(lmv1->lmv_stripe_count);
if (rc != 0)
lod_object_free_striping(env, lo);
struct dt_object *dt,
struct lu_attr *attr,
const struct lmv_user_md_v1 *lum,
+ struct dt_object_format *dof,
struct thandle *th)
{
struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
struct lod_tgt_descs *ltd = &lod->lod_mdt_descs;
struct lod_object *lo = lod_dt_obj(dt);
+ struct lod_thread_info *info = lod_env_info(env);
struct dt_object **stripe;
struct lu_buf lmv_buf;
+ struct lu_buf slave_lmv_buf;
+ struct lmv_mds_md_v1 *lmm;
+ struct lmv_mds_md_v1 *slave_lmm = NULL;
+ struct dt_insert_rec *rec = &info->lti_dt_rec;
int stripe_count;
int *idx_array;
int rc = 0;
LASSERT(le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC);
LASSERT(le32_to_cpu(lum->lum_stripe_count) > 0);
- /* Do not need allocated master stripe */
stripe_count = le32_to_cpu(lum->lum_stripe_count);
- OBD_ALLOC(stripe, sizeof(stripe[0]) * (stripe_count - 1));
+
+ /* shrink the stripe_count to the avaible MDT count */
+ if (stripe_count > lod->lod_remote_mdt_count + 1)
+ stripe_count = lod->lod_remote_mdt_count + 1;
+
+ OBD_ALLOC(stripe, sizeof(stripe[0]) * stripe_count);
if (stripe == NULL)
RETURN(-ENOMEM);
if (idx_array == NULL)
GOTO(out_free, rc = -ENOMEM);
- idx_array[0] = le32_to_cpu(lum->lum_stripe_offset);
- for (i = 1; i < stripe_count; i++) {
- struct lod_tgt_desc *tgt;
+ for (i = 0; i < stripe_count; i++) {
+ struct lod_tgt_desc *tgt = NULL;
struct dt_object *dto;
- struct lu_fid fid;
+ struct lu_fid fid = { 0 };
int idx;
struct lu_object_conf conf = { 0 };
+ struct dt_device *tgt_dt = NULL;
+
+ if (i == 0) {
+ /* Right now, master stripe and master object are
+ * on the same MDT */
+ idx = le32_to_cpu(lum->lum_stripe_offset);
+ rc = obd_fid_alloc(env, lod->lod_child_exp, &fid,
+ NULL);
+ if (rc < 0)
+ GOTO(out_put, rc);
+ tgt_dt = lod->lod_child;
+ goto next;
+ }
idx = (idx_array[i - 1] + 1) % (lod->lod_remote_mdt_count + 1);
" allocated %d, last allocated %d\n", idx,
lod->lod_remote_mdt_count, i, idx_array[i - 1]);
- /* Find next avaible target */
+ /* Find next available target */
if (!cfs_bitmap_check(ltd->ltd_tgt_bitmap, idx))
continue;
if (already_allocated)
continue;
+ /* check the status of the OSP */
+ tgt = LTD_TGT(ltd, idx);
+ if (tgt == NULL)
+ continue;
+
+ tgt_dt = tgt->ltd_tgt;
+ rc = dt_statfs(env, tgt_dt, NULL);
+ if (rc) {
+ /* this OSP doesn't feel well */
+ rc = 0;
+ continue;
+ }
+
+ rc = obd_fid_alloc(env, tgt->ltd_exp, &fid, NULL);
+ if (rc < 0) {
+ rc = 0;
+ continue;
+ }
+
break;
}
" allocated %d, last allocated %d\n", idx,
lod->lod_remote_mdt_count, i, idx_array[i - 1]);
- tgt = LTD_TGT(ltd, idx);
- LASSERT(tgt != NULL);
-
- rc = obd_fid_alloc(tgt->ltd_exp, &fid, NULL);
- if (rc < 0)
- GOTO(out_put, rc);
- rc = 0;
-
+next:
+ /* tgt_dt and fid must be ready after search avaible OSP
+ * in the above loop */
+ LASSERT(tgt_dt != NULL);
+ LASSERT(fid_is_sane(&fid));
conf.loc_flags = LOC_F_NEW;
- dto = dt_locate_at(env, tgt->ltd_tgt, &fid,
- dt->do_lu.lo_dev->ld_site->ls_top_dev, &conf);
+ dto = dt_locate_at(env, tgt_dt, &fid,
+ dt->do_lu.lo_dev->ld_site->ls_top_dev,
+ &conf);
if (IS_ERR(dto))
GOTO(out_put, rc = PTR_ERR(dto));
- stripe[i - 1] = dto;
+ stripe[i] = dto;
idx_array[i] = idx;
}
lo->ldo_dir_striped = 1;
lo->ldo_stripe = stripe;
- lo->ldo_stripenr = i - 1;
- lo->ldo_stripes_allocated = stripe_count - 1;
+ lo->ldo_stripenr = i;
+ lo->ldo_stripes_allocated = stripe_count;
if (lo->ldo_stripenr == 0)
GOTO(out_put, rc = -ENOSPC);
rc = lod_prep_lmv_md(env, dt, &lmv_buf);
if (rc != 0)
GOTO(out_put, rc);
+ lmm = lmv_buf.lb_buf;
+
+ OBD_ALLOC_PTR(slave_lmm);
+ if (slave_lmm == NULL)
+ GOTO(out_put, rc = -ENOMEM);
+ lod_prep_slave_lmv_md(slave_lmm, lmm);
+ slave_lmv_buf.lb_buf = slave_lmm;
+ slave_lmv_buf.lb_len = sizeof(*slave_lmm);
+
+ if (!dt_try_as_dir(env, dt_object_child(dt)))
+ GOTO(out_put, rc = -EINVAL);
+
+ rec->rec_type = S_IFDIR;
for (i = 0; i < lo->ldo_stripenr; i++) {
- struct dt_object *dto;
+ struct dt_object *dto = stripe[i];
+ char *stripe_name = info->lti_key;
+ struct lu_name *sname;
+ struct linkea_data ldata = { 0 };
+ struct lu_buf linkea_buf;
- dto = stripe[i];
- /* only create slave striped object */
- rc = dt_declare_create(env, dto, attr, NULL, NULL, th);
+ rc = dt_declare_create(env, dto, attr, NULL, dof, th);
if (rc != 0)
GOTO(out_put, rc);
if (!dt_try_as_dir(env, dto))
GOTO(out_put, rc = -EINVAL);
- rc = dt_declare_insert(env, dto,
- (const struct dt_rec *)lu_object_fid(&dto->do_lu),
- (const struct dt_key *)dot, th);
+ rec->rec_fid = lu_object_fid(&dto->do_lu);
+ rc = dt_declare_insert(env, dto, (const struct dt_rec *)rec,
+ (const struct dt_key *)dot, th);
if (rc != 0)
GOTO(out_put, rc);
/* master stripe FID will be put to .. */
- rc = dt_declare_insert(env, dto,
- (const struct dt_rec *)lu_object_fid(&dt->do_lu),
- (const struct dt_key *)dotdot, th);
+ rec->rec_fid = lu_object_fid(&dt->do_lu);
+ rc = dt_declare_insert(env, dto, (const struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th);
if (rc != 0)
GOTO(out_put, rc);
!LOVEA_DELETE_VALUES(lo->ldo_def_stripe_size,
lo->ldo_def_stripenr,
lo->ldo_def_stripe_offset)) {
- struct lod_thread_info *info;
struct lov_user_md_v3 *v3;
/* sigh, lti_ea_store has been used for lmv_buf,
memset(v3, 0, sizeof(*v3));
v3->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V3);
v3->lmm_stripe_count =
- cpu_to_le32(lo->ldo_def_stripenr);
+ cpu_to_le16(lo->ldo_def_stripenr);
v3->lmm_stripe_offset =
- cpu_to_le32(lo->ldo_def_stripe_offset);
+ cpu_to_le16(lo->ldo_def_stripe_offset);
v3->lmm_stripe_size =
cpu_to_le32(lo->ldo_def_stripe_size);
- if (lo->ldo_pool)
- strncpy(v3->lmm_pool_name, lo->ldo_pool,
- LOV_MAXPOOLNAME);
+ if (lo->ldo_pool != NULL)
+ strlcpy(v3->lmm_pool_name, lo->ldo_pool,
+ sizeof(v3->lmm_pool_name));
+
+ info->lti_buf.lb_buf = v3;
+ info->lti_buf.lb_len = sizeof(*v3);
+ rc = dt_declare_xattr_set(env, dto,
+ &info->lti_buf,
+ XATTR_NAME_LOV,
+ 0, th);
+ OBD_FREE_PTR(v3);
+ if (rc != 0)
+ GOTO(out_put, rc);
+ }
+
+ slave_lmm->lmv_master_mdt_index = cpu_to_le32(i);
+ rc = dt_declare_xattr_set(env, dto, &slave_lmv_buf,
+ XATTR_NAME_LMV, 0, th);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&dto->do_lu)), i);
+
+ sname = lod_name_get(env, stripe_name, strlen(stripe_name));
+ rc = linkea_data_new(&ldata, &info->lti_linkea_buf);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ rc = linkea_add_buf(&ldata, sname, lu_object_fid(&dt->do_lu));
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ linkea_buf.lb_buf = ldata.ld_buf->lb_buf;
+ linkea_buf.lb_len = ldata.ld_leh->leh_len;
+ rc = dt_declare_xattr_set(env, dto, &linkea_buf,
+ XATTR_NAME_LINK, 0, th);
+ if (rc != 0)
+ GOTO(out_put, rc);
+
+ rec->rec_fid = lu_object_fid(&dto->do_lu);
+ rc = dt_declare_insert(env, dt_object_child(dt),
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)stripe_name, th);
+ if (rc != 0)
+ GOTO(out_put, rc);
- info = lod_env_info(env);
- info->lti_buf.lb_buf = v3;
- info->lti_buf.lb_len = sizeof(*v3);
- rc = dt_declare_xattr_set(env, dto,
- &info->lti_buf,
- XATTR_NAME_LOV,
- 0, th);
- OBD_FREE_PTR(v3);
- if (rc != 0)
- GOTO(out_put, rc);
- }
- rc = dt_declare_xattr_set(env, dto, &lmv_buf, XATTR_NAME_LMV, 0,
- th);
+ rc = dt_declare_ref_add(env, dt_object_child(dt), th);
if (rc != 0)
GOTO(out_put, rc);
}
out_put:
if (rc < 0) {
- for (i = 0; i < stripe_count - 1; i++)
+ for (i = 0; i < stripe_count; i++)
if (stripe[i] != NULL)
lu_object_put(env, &stripe[i]->do_lu);
- OBD_FREE(stripe, sizeof(stripe[0]) * (stripe_count - 1));
+ OBD_FREE(stripe, sizeof(stripe[0]) * stripe_count);
+ lo->ldo_stripenr = 0;
+ lo->ldo_stripes_allocated = 0;
+ lo->ldo_stripe = NULL;
}
out_free:
if (idx_array != NULL)
OBD_FREE(idx_array, sizeof(idx_array[0]) * stripe_count);
+ if (slave_lmm != NULL)
+ OBD_FREE_PTR(slave_lmm);
RETURN(rc);
}
struct dt_object *dt,
struct lu_attr *attr,
const struct lu_buf *lum_buf,
+ struct dt_object_format *dof,
struct thandle *th)
{
struct lod_object *lo = lod_dt_obj(dt);
le32_to_cpu(lum->lum_magic), le32_to_cpu(lum->lum_stripe_count),
(int)le32_to_cpu(lum->lum_stripe_offset));
- if (le32_to_cpu(lum->lum_stripe_count) <= 1)
+ if (le32_to_cpu(lum->lum_stripe_count) == 0)
GOTO(out, rc = 0);
rc = lod_verify_md_striping(lod, lum);
GOTO(out, rc);
/* prepare dir striped objects */
- rc = lod_prep_md_striped_create(env, dt, attr, lum, th);
+ rc = lod_prep_md_striped_create(env, dt, attr, lum, dof, th);
if (rc != 0) {
/* failed to create striping, let's reset
* config so that others don't get confused */
RETURN(rc);
}
+static int lod_dir_declare_xattr_set(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ const char *name, int fl,
+ struct thandle *th)
+{
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int i;
+ int rc;
+ ENTRY;
+
+ if (strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
+ struct lmv_user_md_v1 *lum;
+
+ LASSERT(buf != NULL && buf->lb_buf != NULL);
+ lum = buf->lb_buf;
+ rc = lod_verify_md_striping(d, lum);
+ if (rc != 0)
+ RETURN(rc);
+ }
+
+ rc = dt_declare_xattr_set(env, next, buf, name, fl, th);
+ if (rc != 0)
+ RETURN(rc);
+
+ /* set xattr to each stripes, if needed */
+ rc = lod_load_striping(env, lo);
+ if (rc != 0)
+ RETURN(rc);
+
+ /* Note: Do not set LinkEA on sub-stripes, otherwise
+ * it will confuse the fid2path process(see mdt_path_current()).
+ * The linkEA between master and sub-stripes is set in
+ * lod_xattr_set_lmv(). */
+ if (lo->ldo_stripenr == 0 || strcmp(name, XATTR_NAME_LINK) == 0)
+ RETURN(0);
+
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ LASSERT(lo->ldo_stripe[i]);
+ rc = dt_declare_xattr_set(env, lo->ldo_stripe[i], buf,
+ name, fl, th);
+ if (rc != 0)
+ break;
+ }
+
+ RETURN(rc);
+}
+
/*
* LOV xattr is a storage for striping, and LOD owns this xattr.
* but LOD allows others to control striping to some extent
}
rc = lod_declare_striped_object(env, dt, attr, buf, th);
} else if (S_ISDIR(mode)) {
- struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
- struct lod_object *lo = lod_dt_obj(dt);
- int i;
-
- if (strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
- struct lmv_user_md_v1 *lum;
-
- LASSERT(buf != NULL && buf->lb_buf != NULL);
- lum = buf->lb_buf;
- rc = lod_verify_md_striping(d, lum);
- if (rc != 0)
- RETURN(rc);
- }
-
- rc = dt_declare_xattr_set(env, next, buf, name, fl, th);
- if (rc != 0)
- RETURN(rc);
-
- /* set xattr to each stripes, if needed */
- rc = lod_load_striping(env, lo);
- if (rc != 0)
- RETURN(rc);
-
- if (lo->ldo_stripenr == 0)
- RETURN(rc);
-
- for (i = 0; i < lo->ldo_stripenr; i++) {
- LASSERT(lo->ldo_stripe[i]);
- rc = dt_declare_xattr_set(env, lo->ldo_stripe[i], buf,
- name, fl, th);
- if (rc != 0)
- break;
- }
+ rc = lod_dir_declare_xattr_set(env, dt, buf, name, fl, th);
} else {
rc = dt_declare_xattr_set(env, next, buf, name, fl, th);
}
lod_object_set_pool(lo, NULL);
lo->ldo_def_stripe_size = 0;
lo->ldo_def_stripenr = 0;
+ if (lo->ldo_dir_stripe != NULL)
+ lo->ldo_dir_striping_cached = 0;
+}
+
+static int lod_xattr_set_internal(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ const char *name, int fl, struct thandle *th,
+ struct lustre_capa *capa)
+{
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int rc;
+ int i;
+ ENTRY;
+
+ rc = dt_xattr_set(env, next, buf, name, fl, th, capa);
+ if (rc != 0 || !S_ISDIR(dt->do_lu.lo_header->loh_attr))
+ RETURN(rc);
+
+ /* Note: Do not set LinkEA on sub-stripes, otherwise
+ * it will confuse the fid2path process(see mdt_path_current()).
+ * The linkEA between master and sub-stripes is set in
+ * lod_xattr_set_lmv(). */
+ if (lo->ldo_stripenr == 0 || strcmp(name, XATTR_NAME_LINK) == 0)
+ RETURN(0);
+
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ LASSERT(lo->ldo_stripe[i]);
+ rc = dt_xattr_set(env, lo->ldo_stripe[i], buf, name, fl, th,
+ capa);
+ if (rc != 0)
+ break;
+ }
+
+ RETURN(rc);
+}
+
+static int lod_xattr_del_internal(const struct lu_env *env,
+ struct dt_object *dt,
+ const char *name, struct thandle *th,
+ struct lustre_capa *capa)
+{
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int rc;
+ int i;
+ ENTRY;
+
+ rc = dt_xattr_del(env, next, name, th, capa);
+ if (rc != 0 || !S_ISDIR(dt->do_lu.lo_header->loh_attr))
+ RETURN(rc);
+
+ if (lo->ldo_stripenr == 0)
+ RETURN(rc);
+
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ LASSERT(lo->ldo_stripe[i]);
+ rc = dt_xattr_del(env, lo->ldo_stripe[i], name, th,
+ capa);
+ if (rc != 0)
+ break;
+ }
+
+ RETURN(rc);
}
static int lod_xattr_set_lov_on_dir(const struct lu_env *env,
struct lustre_capa *capa)
{
struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
- struct dt_object *next = dt_object_child(dt);
struct lod_object *l = lod_dt_obj(dt);
struct lov_user_md_v1 *lum;
struct lov_user_md_v3 *v3 = NULL;
LASSERT(buf != NULL && buf->lb_buf != NULL);
lum = buf->lb_buf;
- rc = lod_verify_striping(d, buf, 0);
+ rc = lod_verify_striping(d, buf, false);
if (rc)
RETURN(rc);
(lum->lmm_stripe_count),
(lum->lmm_stripe_offset)) &&
lum->lmm_magic == LOV_USER_MAGIC_V1) {
- rc = dt_xattr_del(env, next, name, th, capa);
+ rc = lod_xattr_del_internal(env, dt, name, th, capa);
if (rc == -ENODATA)
rc = 0;
} else {
- rc = dt_xattr_set(env, next, buf, name, fl, th, capa);
+ rc = lod_xattr_set_internal(env, dt, buf, name, fl, th, capa);
}
RETURN(rc);
struct thandle *th,
struct lustre_capa *capa)
{
- struct dt_object *next = dt_object_child(dt);
struct lod_object *l = lod_dt_obj(dt);
struct lmv_user_md_v1 *lum;
int rc;
if (LMVEA_DELETE_VALUES((le32_to_cpu(lum->lum_stripe_count)),
le32_to_cpu(lum->lum_stripe_offset)) &&
le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC) {
- rc = dt_xattr_del(env, next, name, th, capa);
+ rc = lod_xattr_del_internal(env, dt, name, th, capa);
if (rc == -ENODATA)
rc = 0;
} else {
- rc = dt_xattr_set(env, next, buf, name, fl, th, capa);
+ rc = lod_xattr_set_internal(env, dt, buf, name, fl, th, capa);
if (rc != 0)
RETURN(rc);
+ }
- /* Update default stripe cache */
- if (l->ldo_dir_stripe == NULL) {
- OBD_ALLOC_PTR(l->ldo_dir_stripe);
- if (l->ldo_dir_stripe == NULL)
- RETURN(-ENOMEM);
- }
-
- l->ldo_dir_striping_cached = 0;
- l->ldo_dir_def_striping_set = 1;
- l->ldo_dir_def_stripenr =
- le32_to_cpu(lum->lum_stripe_count) - 1;
+ /* Update default stripe cache */
+ if (l->ldo_dir_stripe == NULL) {
+ OBD_ALLOC_PTR(l->ldo_dir_stripe);
+ if (l->ldo_dir_stripe == NULL)
+ RETURN(-ENOMEM);
}
+ l->ldo_dir_striping_cached = 0;
+ l->ldo_dir_def_striping_set = 1;
+ l->ldo_dir_def_stripenr = le32_to_cpu(lum->lum_stripe_count);
+
RETURN(rc);
}
struct lustre_capa *capa)
{
struct lod_object *lo = lod_dt_obj(dt);
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lu_attr *attr = &info->lti_attr;
+ struct dt_object_format *dof = &info->lti_format;
struct lu_buf lmv_buf;
+ struct lu_buf slave_lmv_buf;
+ struct lmv_mds_md_v1 *lmm;
+ struct lmv_mds_md_v1 *slave_lmm = NULL;
+ struct dt_insert_rec *rec = &info->lti_dt_rec;
int i;
int rc;
ENTRY;
if (lo->ldo_stripenr == 0)
RETURN(0);
+ rc = dt_attr_get(env, dt_object_child(dt), attr, BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
+
+ attr->la_valid = LA_TYPE | LA_MODE;
+ dof->dof_type = DFT_DIR;
+
rc = lod_prep_lmv_md(env, dt, &lmv_buf);
if (rc != 0)
RETURN(rc);
+ lmm = lmv_buf.lb_buf;
+
+ OBD_ALLOC_PTR(slave_lmm);
+ if (slave_lmm == NULL)
+ RETURN(-ENOMEM);
+ lod_prep_slave_lmv_md(slave_lmm, lmm);
+ slave_lmv_buf.lb_buf = slave_lmm;
+ slave_lmv_buf.lb_len = sizeof(*slave_lmm);
+
+ rec->rec_type = S_IFDIR;
for (i = 0; i < lo->ldo_stripenr; i++) {
- struct dt_object *dto;
- struct lu_attr *attr = &lod_env_info(env)->lti_attr;
+ struct dt_object *dto;
+ char *stripe_name = info->lti_key;
+ struct lu_name *sname;
+ struct linkea_data ldata = { 0 };
+ struct lu_buf linkea_buf;
dto = lo->ldo_stripe[i];
- memset(attr, 0, sizeof(*attr));
- attr->la_valid = LA_TYPE | LA_MODE;
- attr->la_mode = S_IFDIR;
- rc = dt_create(env, dto, attr, NULL, NULL, th);
+ dt_write_lock(env, dto, MOR_TGT_CHILD);
+ rc = dt_create(env, dto, attr, NULL, dof, th);
+ dt_write_unlock(env, dto);
if (rc != 0)
RETURN(rc);
- rc = dt_insert(env, dto,
- (const struct dt_rec *)lu_object_fid(&dto->do_lu),
- (const struct dt_key *)dot, th, capa, 0);
+ rec->rec_fid = lu_object_fid(&dto->do_lu);
+ rc = dt_insert(env, dto, (const struct dt_rec *)rec,
+ (const struct dt_key *)dot, th, capa, 0);
if (rc != 0)
RETURN(rc);
- rc = dt_insert(env, dto,
- (struct dt_rec *)lu_object_fid(&dt->do_lu),
- (const struct dt_key *)dotdot, th, capa, 0);
+ rec->rec_fid = lu_object_fid(&dt->do_lu);
+ rc = dt_insert(env, dto, (struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th, capa, 0);
if (rc != 0)
RETURN(rc);
!LOVEA_DELETE_VALUES(lo->ldo_def_stripe_size,
lo->ldo_def_stripenr,
lo->ldo_def_stripe_offset)) {
- struct lod_thread_info *info;
struct lov_user_md_v3 *v3;
/* sigh, lti_ea_store has been used for lmv_buf,
* stripe EA */
OBD_ALLOC_PTR(v3);
if (v3 == NULL)
- RETURN(-ENOMEM);
+ GOTO(out, rc);
memset(v3, 0, sizeof(*v3));
v3->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V3);
v3->lmm_stripe_count =
- cpu_to_le32(lo->ldo_def_stripenr);
+ cpu_to_le16(lo->ldo_def_stripenr);
v3->lmm_stripe_offset =
- cpu_to_le32(lo->ldo_def_stripe_offset);
+ cpu_to_le16(lo->ldo_def_stripe_offset);
v3->lmm_stripe_size =
cpu_to_le32(lo->ldo_def_stripe_size);
- if (lo->ldo_pool)
- strncpy(v3->lmm_pool_name, lo->ldo_pool,
- LOV_MAXPOOLNAME);
+ if (lo->ldo_pool != NULL)
+ strlcpy(v3->lmm_pool_name, lo->ldo_pool,
+ sizeof(v3->lmm_pool_name));
- info = lod_env_info(env);
info->lti_buf.lb_buf = v3;
info->lti_buf.lb_len = sizeof(*v3);
rc = dt_xattr_set(env, dto, &info->lti_buf,
XATTR_NAME_LOV, 0, th, capa);
OBD_FREE_PTR(v3);
if (rc != 0)
+ GOTO(out, rc);
+ }
+
+ slave_lmm->lmv_master_mdt_index = cpu_to_le32(i);
+ rc = dt_xattr_set(env, dto, &slave_lmv_buf, XATTR_NAME_LMV,
+ fl, th, capa);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&dto->do_lu)), i);
+
+ sname = lod_name_get(env, stripe_name, strlen(stripe_name));
+ rc = linkea_data_new(&ldata, &info->lti_linkea_buf);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ rc = linkea_add_buf(&ldata, sname, lu_object_fid(&dt->do_lu));
+ if (rc != 0)
+ GOTO(out, rc);
+
+ linkea_buf.lb_buf = ldata.ld_buf->lb_buf;
+ linkea_buf.lb_len = ldata.ld_leh->leh_len;
+ rc = dt_xattr_set(env, dto, &linkea_buf, XATTR_NAME_LINK,
+ 0, th, BYPASS_CAPA);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ rec->rec_fid = lu_object_fid(&dto->do_lu);
+ rc = dt_insert(env, dt_object_child(dt),
+ (const struct dt_rec *)rec,
+ (const struct dt_key *)stripe_name, th, capa, 0);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ rc = dt_ref_add(env, dt_object_child(dt), th);
+ if (rc != 0)
+ GOTO(out, rc);
+ }
+
+ rc = dt_xattr_set(env, dt_object_child(dt), &lmv_buf, XATTR_NAME_LMV,
+ fl, th, capa);
+
+out:
+ if (slave_lmm != NULL)
+ OBD_FREE_PTR(slave_lmm);
+
+ RETURN(rc);
+}
+
+int lod_dir_striping_create_internal(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ struct dt_object_format *dof,
+ struct thandle *th,
+ bool declare)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int rc;
+ ENTRY;
+
+ if (!LMVEA_DELETE_VALUES(lo->ldo_stripenr,
+ lo->ldo_dir_stripe_offset)) {
+ struct lmv_user_md_v1 *v1 = info->lti_ea_store;
+ int stripe_count = lo->ldo_stripenr;
+
+ if (info->lti_ea_store_size < sizeof(*v1)) {
+ rc = lod_ea_store_resize(info, sizeof(*v1));
+ if (rc != 0)
RETURN(rc);
+ v1 = info->lti_ea_store;
}
- rc = dt_xattr_set(env, dto, &lmv_buf, XATTR_NAME_LMV, fl, th,
- capa);
+ memset(v1, 0, sizeof(*v1));
+ v1->lum_magic = cpu_to_le32(LMV_USER_MAGIC);
+ v1->lum_stripe_count = cpu_to_le32(stripe_count);
+ v1->lum_stripe_offset =
+ cpu_to_le32(lo->ldo_dir_stripe_offset);
+
+ info->lti_buf.lb_buf = v1;
+ info->lti_buf.lb_len = sizeof(*v1);
+
+ if (declare)
+ rc = lod_declare_xattr_set_lmv(env, dt, attr,
+ &info->lti_buf, dof, th);
+ else
+ rc = lod_xattr_set_lmv(env, dt, &info->lti_buf,
+ XATTR_NAME_LMV, 0, th,
+ BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
+ }
+
+ /* Transfer default LMV striping from the parent */
+ if (lo->ldo_dir_striping_cached &&
+ !LMVEA_DELETE_VALUES(lo->ldo_dir_def_stripenr,
+ lo->ldo_dir_def_stripe_offset)) {
+ struct lmv_user_md_v1 *v1 = info->lti_ea_store;
+ int def_stripe_count = lo->ldo_dir_def_stripenr;
+
+ if (info->lti_ea_store_size < sizeof(*v1)) {
+ rc = lod_ea_store_resize(info, sizeof(*v1));
+ if (rc != 0)
+ RETURN(rc);
+ v1 = info->lti_ea_store;
+ }
+
+ memset(v1, 0, sizeof(*v1));
+ v1->lum_magic = cpu_to_le32(LMV_USER_MAGIC);
+ v1->lum_stripe_count = cpu_to_le32(def_stripe_count);
+ v1->lum_stripe_offset =
+ cpu_to_le32(lo->ldo_dir_def_stripe_offset);
+ v1->lum_hash_type =
+ cpu_to_le32(lo->ldo_dir_def_hash_type);
+
+ info->lti_buf.lb_buf = v1;
+ info->lti_buf.lb_len = sizeof(*v1);
+ if (declare)
+ rc = lod_dir_declare_xattr_set(env, dt, &info->lti_buf,
+ XATTR_NAME_DEFAULT_LMV,
+ 0, th);
+ else
+ rc = lod_xattr_set_default_lmv_on_dir(env, dt,
+ &info->lti_buf,
+ XATTR_NAME_DEFAULT_LMV, 0,
+ th, BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
}
- rc = dt_xattr_set(env, dt_object_child(dt), &lmv_buf, XATTR_NAME_LMV,
- fl, th, capa);
+ /* Transfer default LOV striping from the parent */
+ if (lo->ldo_striping_cached &&
+ !LOVEA_DELETE_VALUES(lo->ldo_def_stripe_size,
+ lo->ldo_def_stripenr,
+ lo->ldo_def_stripe_offset)) {
+ struct lov_user_md_v3 *v3 = info->lti_ea_store;
+
+ if (info->lti_ea_store_size < sizeof(*v3)) {
+ rc = lod_ea_store_resize(info, sizeof(*v3));
+ if (rc != 0)
+ RETURN(rc);
+ v3 = info->lti_ea_store;
+ }
+
+ memset(v3, 0, sizeof(*v3));
+ v3->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V3);
+ v3->lmm_stripe_count = cpu_to_le16(lo->ldo_def_stripenr);
+ v3->lmm_stripe_offset = cpu_to_le16(lo->ldo_def_stripe_offset);
+ v3->lmm_stripe_size = cpu_to_le32(lo->ldo_def_stripe_size);
+ if (lo->ldo_pool != NULL)
+ strlcpy(v3->lmm_pool_name, lo->ldo_pool,
+ sizeof(v3->lmm_pool_name));
+
+ info->lti_buf.lb_buf = v3;
+ info->lti_buf.lb_len = sizeof(*v3);
+
+ if (declare)
+ rc = lod_dir_declare_xattr_set(env, dt, &info->lti_buf,
+ XATTR_NAME_LOV, 0, th);
+ else
+ rc = lod_xattr_set_lov_on_dir(env, dt, &info->lti_buf,
+ XATTR_NAME_LOV, 0, th,
+ BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
+ }
+
+ RETURN(0);
+}
+
+static int lod_declare_dir_striping_create(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ struct dt_object_format *dof,
+ struct thandle *th)
+{
+ return lod_dir_striping_create_internal(env, dt, attr, dof, th, true);
+}
- RETURN(rc);
+static int lod_dir_striping_create(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ struct dt_object_format *dof,
+ struct thandle *th)
+{
+ return lod_dir_striping_create_internal(env, dt, attr, dof, th, false);
}
static int lod_xattr_set(const struct lu_env *env,
const char *name, int fl, struct thandle *th,
struct lustre_capa *capa)
{
- struct lod_object *lo = lod_dt_obj(dt);
struct dt_object *next = dt_object_child(dt);
- __u32 attr;
int rc;
- int i;
ENTRY;
- attr = dt->do_lu.lo_header->loh_attr & S_IFMT;
- if (S_ISDIR(attr) && strcmp(name, XATTR_NAME_LOV) == 0) {
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
+ strcmp(name, XATTR_NAME_LMV) == 0) {
+ struct lmv_mds_md_v1 *lmm = buf->lb_buf;
+
+ if (lmm != NULL && le32_to_cpu(lmm->lmv_hash_type) &
+ LMV_HASH_FLAG_MIGRATION)
+ rc = dt_xattr_set(env, next, buf, name, fl, th, capa);
+ else
+ rc = lod_dir_striping_create(env, dt, NULL, NULL, th);
+
+ RETURN(rc);
+ }
+
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
+ strcmp(name, XATTR_NAME_LOV) == 0) {
+ /* default LOVEA */
rc = lod_xattr_set_lov_on_dir(env, dt, buf, name, fl, th, capa);
- } else if (S_ISREG(attr) && !strcmp(name, XATTR_NAME_LOV)) {
+ RETURN(rc);
+ } else if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
+ strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
+ /* default LMVEA */
+ rc = lod_xattr_set_default_lmv_on_dir(env, dt, buf, name, fl,
+ th, capa);
+ RETURN(rc);
+ } else if (S_ISREG(dt->do_lu.lo_header->loh_attr) &&
+ !strcmp(name, XATTR_NAME_LOV)) {
/* in case of lov EA swap, just set it
* if not, it is a replay so check striping match what we
* already have during req replay, declare_xattr_set()
} else {
rc = lod_striping_create(env, dt, NULL, NULL, th);
}
- } else if (strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
- if (!S_ISDIR(attr))
- RETURN(-ENOTDIR);
- rc = lod_xattr_set_default_lmv_on_dir(env, dt, buf, name, fl,
- th, capa);
- } else {
- /*
- * behave transparantly for all other EAs
- */
- rc = dt_xattr_set(env, next, buf, name, fl, th, capa);
- }
-
- if (rc != 0 || !S_ISDIR(attr))
- RETURN(rc);
-
- if (lo->ldo_stripenr == 0)
RETURN(rc);
-
- for (i = 0; i < lo->ldo_stripenr; i++) {
- LASSERT(lo->ldo_stripe[i]);
- rc = dt_xattr_set(env, lo->ldo_stripe[i], buf, name, fl, th,
- capa);
- if (rc != 0)
- break;
}
+ /* then all other xattr */
+ rc = lod_xattr_set_internal(env, dt, buf, name, fl, th, capa);
+
RETURN(rc);
}
rc = 0;
v1 = info->lti_ea_store;
- if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1))
+ if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
lustre_swab_lov_user_md_v1(v1);
- else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3))
+ } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
+ v3 = (struct lov_user_md_v3 *)v1;
lustre_swab_lov_user_md_v3(v3);
+ }
if (v1->lmm_magic != LOV_MAGIC_V3 && v1->lmm_magic != LOV_MAGIC_V1)
GOTO(unlock, rc = 0);
rc = 0;
v1 = info->lti_ea_store;
- lp->ldo_dir_def_stripenr = le32_to_cpu(v1->lum_stripe_count) - 1;
+ lp->ldo_dir_def_stripenr = le32_to_cpu(v1->lum_stripe_count);
lp->ldo_dir_def_stripe_offset = le32_to_cpu(v1->lum_stripe_offset);
lp->ldo_dir_def_hash_type = le32_to_cpu(v1->lum_hash_type);
lp->ldo_dir_def_striping_set = 1;
struct lod_object *lp = NULL;
struct lod_object *lc;
struct lov_desc *desc;
+ int rc;
ENTRY;
LASSERT(child);
if (likely(parent)) {
nextp = dt_object_child(parent);
lp = lod_dt_obj(parent);
+ rc = lod_load_striping(env, lp);
+ if (rc != 0)
+ return;
}
nextc = dt_object_child(child);
NULL : nextp, nextc, child_mode);
if (S_ISDIR(child_mode)) {
- int rc;
-
if (lc->ldo_dir_stripe == NULL) {
OBD_ALLOC_PTR(lc->ldo_dir_stripe);
if (lc->ldo_dir_stripe == NULL)
lc->ldo_dir_def_hash_type);
}
- /* If the directory is specified with certain stripes */
+ /* It should always honour the specified stripes */
if (ah->dah_eadata != NULL && ah->dah_eadata_len != 0) {
const struct lmv_user_md_v1 *lum1 = ah->dah_eadata;
- int rc;
rc = lod_verify_md_striping(d, lum1);
if (rc == 0 &&
/* Directory will be striped only if
* stripe_count > 1 */
lc->ldo_stripenr =
- le32_to_cpu(lum1->lum_stripe_count) - 1;
+ le32_to_cpu(lum1->lum_stripe_count);
lc->ldo_dir_stripe_offset =
le32_to_cpu(lum1->lum_stripe_offset);
lc->ldo_dir_hash_type =
lc->ldo_stripenr,
(int)lc->ldo_dir_stripe_offset);
}
+ /* then check whether there is default stripes from parent */
} else if (lp->ldo_dir_def_striping_set) {
/* If there are default dir stripe from parent */
lc->ldo_stripenr = lp->ldo_dir_def_stripenr;
RETURN(rc);
}
-int lod_dir_striping_create_internal(const struct lu_env *env,
- struct dt_object *dt,
- struct lu_attr *attr,
- const struct dt_object_format *dof,
- struct thandle *th,
- bool declare)
-{
- struct lod_thread_info *info = lod_env_info(env);
- struct dt_object *next = dt_object_child(dt);
- struct lod_object *lo = lod_dt_obj(dt);
- int rc;
- ENTRY;
-
- if (lo->ldo_dir_def_striping_set &&
- !LMVEA_DELETE_VALUES(lo->ldo_stripenr,
- lo->ldo_dir_stripe_offset)) {
- struct lmv_user_md_v1 *v1 = info->lti_ea_store;
- int stripe_count = lo->ldo_stripenr + 1;
-
- if (info->lti_ea_store_size < sizeof(*v1)) {
- rc = lod_ea_store_resize(info, sizeof(*v1));
- if (rc != 0)
- RETURN(rc);
- v1 = info->lti_ea_store;
- }
-
- memset(v1, 0, sizeof(*v1));
- v1->lum_magic = cpu_to_le32(LMV_USER_MAGIC);
- v1->lum_stripe_count = cpu_to_le32(stripe_count);
- v1->lum_stripe_offset =
- cpu_to_le32(lo->ldo_dir_stripe_offset);
-
- info->lti_buf.lb_buf = v1;
- info->lti_buf.lb_len = sizeof(*v1);
-
- if (declare)
- rc = lod_declare_xattr_set_lmv(env, dt, attr,
- &info->lti_buf, th);
- else
- rc = lod_xattr_set_lmv(env, dt, &info->lti_buf,
- XATTR_NAME_LMV, 0, th,
- BYPASS_CAPA);
- if (rc != 0)
- RETURN(rc);
- }
-
- /* Transfer default LMV striping from the parent */
- if (lo->ldo_dir_striping_cached &&
- !LMVEA_DELETE_VALUES(lo->ldo_dir_def_stripenr,
- lo->ldo_dir_def_stripe_offset)) {
- struct lmv_user_md_v1 *v1 = info->lti_ea_store;
- int def_stripe_count = lo->ldo_dir_def_stripenr + 1;
-
- if (info->lti_ea_store_size < sizeof(*v1)) {
- rc = lod_ea_store_resize(info, sizeof(*v1));
- if (rc != 0)
- RETURN(rc);
- v1 = info->lti_ea_store;
- }
-
- memset(v1, 0, sizeof(*v1));
- v1->lum_magic = cpu_to_le32(LMV_USER_MAGIC);
- v1->lum_stripe_count = cpu_to_le32(def_stripe_count);
- v1->lum_stripe_offset =
- cpu_to_le32(lo->ldo_dir_def_stripe_offset);
- v1->lum_hash_type =
- cpu_to_le32(lo->ldo_dir_def_hash_type);
-
- info->lti_buf.lb_buf = v1;
- info->lti_buf.lb_len = sizeof(*v1);
- if (declare)
- rc = dt_declare_xattr_set(env, next, &info->lti_buf,
- XATTR_NAME_DEFAULT_LMV, 0,
- th);
- else
- rc = dt_xattr_set(env, next, &info->lti_buf,
- XATTR_NAME_DEFAULT_LMV, 0, th,
- BYPASS_CAPA);
- if (rc != 0)
- RETURN(rc);
- }
-
- /* Transfer default LOV striping from the parent */
- if (lo->ldo_striping_cached &&
- !LOVEA_DELETE_VALUES(lo->ldo_def_stripe_size,
- lo->ldo_def_stripenr,
- lo->ldo_def_stripe_offset)) {
- struct lov_user_md_v3 *v3 = info->lti_ea_store;
-
- if (info->lti_ea_store_size < sizeof(*v3)) {
- rc = lod_ea_store_resize(info, sizeof(*v3));
- if (rc != 0)
- RETURN(rc);
- v3 = info->lti_ea_store;
- }
-
- memset(v3, 0, sizeof(*v3));
- v3->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V3);
- v3->lmm_stripe_count = cpu_to_le16(lo->ldo_def_stripenr);
- v3->lmm_stripe_offset = cpu_to_le16(lo->ldo_def_stripe_offset);
- v3->lmm_stripe_size = cpu_to_le32(lo->ldo_def_stripe_size);
- if (lo->ldo_pool)
- strncpy(v3->lmm_pool_name, lo->ldo_pool,
- LOV_MAXPOOLNAME);
-
- info->lti_buf.lb_buf = v3;
- info->lti_buf.lb_len = sizeof(*v3);
-
- if (declare)
- rc = dt_declare_xattr_set(env, next, &info->lti_buf,
- XATTR_NAME_LOV, 0, th);
- else
- rc = dt_xattr_set(env, next, &info->lti_buf,
- XATTR_NAME_LOV, 0, th,
- BYPASS_CAPA);
- if (rc != 0)
- RETURN(rc);
- }
-
- RETURN(0);
-}
-
-static int lod_declare_dir_striping_create(const struct lu_env *env,
- struct dt_object *dt,
- struct lu_attr *attr,
- struct dt_object_format *dof,
- struct thandle *th)
-{
- return lod_dir_striping_create_internal(env, dt, attr, dof, th, true);
-}
-
-static int lod_dir_striping_create(const struct lu_env *env,
- struct dt_object *dt,
- struct lu_attr *attr,
- struct dt_object_format *dof,
- struct thandle *th)
-{
- return lod_dir_striping_create_internal(env, dt, attr, dof, th, false);
-}
-
static int lod_declare_object_create(const struct lu_env *env,
struct dt_object *dt,
struct lu_attr *attr,
/* create local object */
rc = dt_create(env, next, attr, hint, dof, th);
+ if (rc != 0)
+ RETURN(rc);
- if (rc == 0) {
- if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
- lo->ldo_dir_stripe != NULL)
- rc = lod_dir_striping_create(env, dt, attr, dof, th);
- else if (lo->ldo_stripe && dof->u.dof_reg.striped != 0)
- rc = lod_striping_create(env, dt, attr, dof, th);
- }
+ if (S_ISREG(dt->do_lu.lo_header->loh_attr) &&
+ lo->ldo_stripe && dof->u.dof_reg.striped != 0)
+ rc = lod_striping_create(env, dt, attr, dof, th);
RETURN(rc);
}
{
struct dt_object *next = dt_object_child(dt);
struct lod_object *lo = lod_dt_obj(dt);
+ struct lod_thread_info *info = lod_env_info(env);
+ char *stripe_name = info->lti_key;
int rc, i;
ENTRY;
/*
- * we declare destroy for the local object
+ * load striping information, notice we don't do this when object
+ * is being initialized as we don't need this information till
+ * few specific cases like destroy, chown
*/
- rc = dt_declare_destroy(env, next, th);
+ rc = lod_load_striping(env, lo);
if (rc)
RETURN(rc);
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ))
- RETURN(0);
+ /* declare destroy for all underlying objects */
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ rc = next->do_ops->do_index_try(env, next,
+ &dt_directory_features);
+ if (rc != 0)
+ RETURN(rc);
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ rc = dt_declare_ref_del(env, next, th);
+ if (rc != 0)
+ RETURN(rc);
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&lo->ldo_stripe[i]->do_lu)),
+ i);
+ rc = dt_declare_delete(env, next,
+ (const struct dt_key *)stripe_name, th);
+ if (rc != 0)
+ RETURN(rc);
+ }
+ }
/*
- * load striping information, notice we don't do this when object
- * is being initialized as we don't need this information till
- * few specific cases like destroy, chown
+ * we declare destroy for the local object
*/
- rc = lod_load_striping(env, lo);
+ rc = dt_declare_destroy(env, next, th);
if (rc)
RETURN(rc);
- /* declare destroy for all underlying objects */
- for (i = 0; i < lo->ldo_stripenr; i++) {
- LASSERT(lo->ldo_stripe[i]);
- rc = dt_declare_destroy(env, lo->ldo_stripe[i], th);
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ))
+ RETURN(0);
- if (rc)
- break;
+ /* declare destroy all striped objects */
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ if (likely(lo->ldo_stripe[i] != NULL)) {
+ rc = dt_declare_destroy(env, lo->ldo_stripe[i], th);
+ if (rc != 0)
+ break;
+ }
}
RETURN(rc);
{
struct dt_object *next = dt_object_child(dt);
struct lod_object *lo = lod_dt_obj(dt);
+ struct lod_thread_info *info = lod_env_info(env);
+ char *stripe_name = info->lti_key;
int rc, i;
ENTRY;
- /* destroy local object */
+ /* destroy sub-stripe of master object */
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ rc = next->do_ops->do_index_try(env, next,
+ &dt_directory_features);
+ if (rc != 0)
+ RETURN(rc);
+
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ rc = dt_ref_del(env, next, th);
+ if (rc != 0)
+ RETURN(rc);
+
+ snprintf(stripe_name, sizeof(info->lti_key), DFID":%d",
+ PFID(lu_object_fid(&lo->ldo_stripe[i]->do_lu)),
+ i);
+
+ CDEBUG(D_INFO, DFID" delete stripe %s "DFID"\n",
+ PFID(lu_object_fid(&dt->do_lu)), stripe_name,
+ PFID(lu_object_fid(&lo->ldo_stripe[i]->do_lu)));
+
+ rc = dt_delete(env, next,
+ (const struct dt_key *)stripe_name,
+ th, BYPASS_CAPA);
+ if (rc != 0)
+ RETURN(rc);
+ }
+ }
rc = dt_destroy(env, next, th);
- if (rc)
+ if (rc != 0)
RETURN(rc);
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ))
RETURN(0);
- /* destroy all underlying objects */
+ /* destroy all striped objects */
for (i = 0; i < lo->ldo_stripenr; i++) {
- LASSERT(lo->ldo_stripe[i]);
- /* for striped directory, next == ldo_stripe[0] */
- if (next != lo->ldo_stripe[i]) {
+ if (likely(lo->ldo_stripe[i] != NULL) &&
+ (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SPEOBJ) ||
+ i == cfs_fail_val)) {
rc = dt_destroy(env, lo->ldo_stripe[i], th);
- if (rc)
+ if (rc != 0)
break;
}
}
RETURN(rc);
}
-static int lod_index_try(const struct lu_env *env, struct dt_object *dt,
- const struct dt_index_features *feat)
-{
- struct dt_object *next = dt_object_child(dt);
- int rc;
- ENTRY;
-
- LASSERT(next->do_ops);
- LASSERT(next->do_ops->do_index_try);
-
- rc = next->do_ops->do_index_try(env, next, feat);
- if (next->do_index_ops && dt->do_index_ops == NULL)
- dt->do_index_ops = &lod_index_ops;
-
- RETURN(rc);
-}
-
static int lod_declare_ref_add(const struct lu_env *env,
struct dt_object *dt, struct thandle *th)
{
return dt_capa_get(env, dt_object_child(dt), old, opc);
}
-static int lod_object_sync(const struct lu_env *env, struct dt_object *dt)
+static int lod_object_sync(const struct lu_env *env, struct dt_object *dt,
+ __u64 start, __u64 end)
{
- return dt_object_sync(env, dt_object_child(dt));
+ return dt_object_sync(env, dt_object_child(dt), start, end);
}
struct lod_slave_locks {
if (slave_locks == NULL)
RETURN(0);
- for (i = 0; i < slave_locks->lsl_lock_count; i++) {
+ for (i = 1; i < slave_locks->lsl_lock_count; i++) {
if (lustre_handle_is_used(&slave_locks->lsl_handle[i])) {
int rc1;
if (slave_locks == NULL)
RETURN(0);
+ if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
+ RETURN(-ENOTDIR);
+
rc = lod_load_striping(env, lo);
if (rc != 0)
RETURN(rc);
/* Note: for remote lock for single stripe dir, MDT will cancel
* the lock by lockh directly */
- if (lo->ldo_stripenr == 0 && dt_object_remote(dt_object_child(dt)))
+ if (lo->ldo_stripenr <= 1 && dt_object_remote(dt_object_child(dt)))
RETURN(0);
- if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
- RETURN(-ENOTDIR);
-
/* Only cancel slave lock for striped dir */
rc = lod_object_unlock_internal(env, dt, einfo, policy);
RETURN(rc);
/* No stripes */
- if (lo->ldo_stripenr == 0)
+ if (lo->ldo_stripenr <= 1)
RETURN(0);
slave_locks_size = sizeof(*slave_locks) + lo->ldo_stripenr *
slave_locks->lsl_lock_count = lo->ldo_stripenr;
/* striped directory lock */
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 1; i < lo->ldo_stripenr; i++) {
struct lustre_handle lockh;
struct ldlm_res_id *res_id;
policy);
if (rc != 0)
GOTO(out, rc);
-
slave_locks->lsl_handle[i] = lockh;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff