#define D_LFSCK 0x10000000 /* For both OI scrub and LFSCK */
#define D_HSM 0x20000000
#define D_SNAPSHOT 0x40000000 /* snapshot */
+#define D_LAYOUT 0x80000000
#define LIBCFS_DEBUG_MASKS_NAMES { \
"trace", "inode", "super", "ext2", "malloc", "cache", "info", \
"ioctl", "neterror", "net", "warning", "buffs", "other", \
"dentry", "nettrace", "page", "dlmtrace", "error", "emerg", \
"ha", "rpctrace", "vfstrace", "reada", "mmap", "config", \
- "console", "quota", "sec", "lfsck", "hsm", "snapshot", NULL }
+ "console", "quota", "sec", "lfsck", "hsm", "snapshot", "layout",\
+ NULL }
#define D_CANTMASK (D_ERROR | D_EMERG | D_WARNING | D_CONSOLE)
* depending on the case (replay uses ready striping, non-replay req uses
* hints), so MDT replaces magic with appropriate one and now LOD can
* easily understand what's inside -bzzz
+ *
+ * those *_DEF magics are only used on server side internally, they
+ * won't be put on wire or disk.
*/
-#define LOV_MAGIC_V1_DEF 0x0CD10BD0
-#define LOV_MAGIC_V3_DEF 0x0CD30BD0
+#define LOV_MAGIC_DEF 0x10000000
+#define LOV_MAGIC_V1_DEF (LOV_MAGIC_DEF | LOV_MAGIC_V1)
+#define LOV_MAGIC_V3_DEF (LOV_MAGIC_DEF | LOV_MAGIC_V3)
+#define LOV_MAGIC_COMP_V1_DEF (LOV_MAGIC_DEF | LOV_MAGIC_COMP_V1)
#define lov_pattern(pattern) (pattern & ~LOV_PATTERN_F_MASK)
#define lov_pattern_flags(pattern) (pattern & LOV_PATTERN_F_MASK)
#define LOV_PATTERN_F_HOLE 0x40000000 /* there is hole in LOV EA */
#define LOV_PATTERN_F_RELEASED 0x80000000 /* HSM released file */
+static inline bool lov_pattern_supported(__u32 pattern)
+{
+ return pattern == LOV_PATTERN_RAID0 ||
+ pattern == (LOV_PATTERN_RAID0 | LOV_PATTERN_F_RELEASED);
+}
+
#define LOV_MAXPOOLNAME 15
#define LOV_POOLNAMEF "%.15s"
/* lcme_id can be specified as certain flags, and the the first
* bit of lcme_id is used to indicate that the ID is representing
- * certain lcme_flags but not a real ID. Which implies we can have
+ * certain LCME_FL_* but not a real ID. Which implies we can have
* at most 31 flags (see LCME_FL_XXX). */
enum lcme_id {
LCME_ID_INVAL = 0x0,
struct lu_context_key *key, void *data)
{
struct lod_thread_info *info = data;
+ struct lod_layout_component *lds =
+ info->lti_def_striping.lds_def_comp_entries;
+
/* allocated in lod_get_lov_ea
* XXX: this is overload, a tread may have such store but used only
* once. Probably better would be pool of such stores per LOD.
info->lti_ea_store_size = 0;
}
lu_buf_free(&info->lti_linkea_buf);
+
+ if (lds != NULL)
+ lod_free_def_comp_entries(&info->lti_def_striping);
+
OBD_FREE_PTR(info);
}
#define ltd_mdt ltd_tgt
#define lod_mdt_desc lod_tgt_desc
+struct lod_layout_component {
+ struct lu_extent llc_extent;
+ __u32 llc_id;
+ __u32 llc_flags;
+ __u32 llc_stripe_size;
+ __u32 llc_pattern;
+ __u16 llc_layout_gen;
+ __u16 llc_stripe_offset;
+ __u16 llc_stripenr;
+ __u16 llc_stripes_allocated;
+ char *llc_pool;
+ struct dt_object **llc_stripe;
+};
+
struct lod_default_striping {
/* default LOV */
- __u32 lds_def_stripe_size;
- __u16 lds_def_stripenr;
- __u16 lds_def_stripe_offset;
- char lds_def_pool[LOV_MAXPOOLNAME + 1];
+ /* current layout component count */
+ __u16 lds_def_comp_cnt;
+ /* the largest comp count ever used */
+ __u32 lds_def_comp_size_cnt;
+ struct lod_layout_component *lds_def_comp_entries;
/* default LMV */
- __u32 lds_dir_def_stripenr;
- __u32 lds_dir_def_stripe_offset;
- __u32 lds_dir_def_hash_type;
- /* flags whether default striping is set */
- __u32 lds_def_striping_set:1,
- lds_dir_def_striping_set:1;
+ __u32 lds_dir_def_stripenr;
+ __u32 lds_dir_def_stripe_offset;
+ __u32 lds_dir_def_hash_type;
+ /* default file striping flags (LOV) */
+ __u32 lds_def_striping_set:1,
+ lds_def_striping_is_composite:1,
+ /* default dir striping flags (LMV) */
+ lds_dir_def_striping_set:1;
};
struct lod_object {
- struct dt_object ldo_obj;
+ struct dt_object ldo_obj;
union {
- /* file stripe */
+ /* file stripe (LOV) */
struct {
- /*
- * don't change field order, because both file and
- * directory use ldo_stripenr/ldo_stripes_allocated
- * to access stripe number.
- */
- __u16 ldo_stripenr;
- __u16 ldo_stripes_allocated;
- __u16 ldo_layout_gen;
- __u16 ldo_released_stripenr;
- __u32 ldo_pattern;
- __u32 ldo_stripe_size;
- __u16 ldo_stripe_offset;
- char *ldo_pool;
+ __u32 ldo_layout_gen;
+ /* Layout component count for a regular file.
+ * It equals to 1 for non-composite layout. */
+ __u16 ldo_comp_cnt;
+ __u32 ldo_is_composite:1,
+ ldo_comp_cached:1;
};
- /* directory stripe */
+ /* directory stripe (LMV) */
struct {
- __u16 ldo_dir_stripenr;
- __u16 ldo_dir_stripes_allocated;
- __u32 ldo_dir_stripe_offset;
- __u32 ldo_dir_hash_type;
- __u32 ldo_dir_slave_stripe:1,
- ldo_dir_striped:1;
+ /* Slave stripe count for striped directory. */
+ __u16 ldo_dir_stripenr;
+ /* How many stripes allocated for a striped directory */
+ __u16 ldo_dir_stripes_allocated;
+ __u32 ldo_dir_stripe_offset;
+ __u32 ldo_dir_hash_type;
+ /* Is a slave stripe of striped directory? */
+ __u32 ldo_dir_slave_stripe:1,
+ ldo_dir_striped:1;
/*
* default striping is not cached, so this field is
* invalid after create, make sure it's used by
* lod_dir_striping_create_internal() only.
*/
- struct lod_default_striping *ldo_def_striping;
+ struct lod_default_striping *ldo_def_striping;
};
};
- struct dt_object **ldo_stripe;
+ /* file stripe (LOV) */
+ struct lod_layout_component *ldo_comp_entries;
+ /* slave stripes of striped directory (LMV)*/
+ struct dt_object **ldo_stripe;
};
-static inline int lod_object_set_pool(struct lod_object *lo, const char *pool)
+static inline int lod_set_pool(char **pool, const char *new_pool)
{
int len;
- if (lo->ldo_pool != NULL) {
- len = strlen(lo->ldo_pool) + 1;
- OBD_FREE(lo->ldo_pool, len);
- lo->ldo_pool = NULL;
+ if (*pool == new_pool)
+ return 0;
+
+ if (*pool != NULL) {
+ len = strlen(*pool) + 1;
+ OBD_FREE(*pool, len);
+ *pool = NULL;
}
- if (pool != NULL) {
- len = strlen(pool) + 1;
- OBD_ALLOC(lo->ldo_pool, len);
- if (lo->ldo_pool == NULL)
+ if (new_pool != NULL) {
+ len = strlen(new_pool) + 1;
+ OBD_ALLOC(*pool, len);
+ if (*pool == NULL)
return -ENOMEM;
- strlcpy(lo->ldo_pool, pool, len);
+ strlcpy(*pool, new_pool, len);
}
return 0;
}
+static inline int lod_set_def_pool(struct lod_default_striping *lds,
+ int i, const char *new_pool)
+{
+ return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool,
+ new_pool);
+}
+
+static inline int lod_obj_set_pool(struct lod_object *lo, int i,
+ const char *new_pool)
+{
+ return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool,
+ new_pool);
+}
+
+/*
+ * Layout generation is used to generate unique component ID, to check ID
+ * collision, we preserve the highest bit of the layout generation when it
+ * wrapped.
+ */
+static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
+{
+ __u32 preserve = lo->ldo_layout_gen & LCME_ID_NONE;
+ lo->ldo_layout_gen++;
+ lo->ldo_layout_gen |= preserve;
+ /* Zero is not a valid component ID */
+ if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0))
+ lo->ldo_layout_gen++;
+}
+
struct lod_it {
struct dt_object *lit_obj; /* object from the layer below */
/* stripe offset of iteration */
struct dt_object, do_lu);
}
+static inline bool lod_obj_is_striped(struct dt_object *dt)
+{
+ struct lod_object *lo = lod_dt_obj(dt);
+ int i;
+
+ if (!dt_object_exists(dt_object_child(dt)))
+ return false;
+
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
+ return lo->ldo_dir_stripenr != 0;
+
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ if (lo->ldo_comp_entries[i].llc_stripe == NULL)
+ continue;
+ LASSERT(lo->ldo_comp_entries[i].llc_stripenr > 0);
+ return true;
+ }
+ return false;
+}
+
extern struct lu_context_key lod_thread_key;
static inline struct lod_thread_info *lod_env_info(const struct lu_env *env)
int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
const struct lu_buf *buf);
int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo,
- struct lov_ost_data_v1 *objs);
+ struct lov_ost_data_v1 *objs, int index);
int lod_verify_striping(struct lod_device *d, const struct lu_buf *buf,
- bool is_from_disk);
-int lod_generate_and_set_lovea(const struct lu_env *env,
- struct lod_object *mo, struct thandle *th);
+ bool is_from_disk, __u64 start);
+int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
+ struct lov_mds_md *lmm, int *lmm_size, bool is_dir);
int lod_ea_store_resize(struct lod_thread_info *info, size_t size);
+int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count);
+void lod_free_def_comp_entries(struct lod_default_striping *lds);
+void lod_free_comp_entries(struct lod_object *lo);
+int lod_alloc_comp_entries(struct lod_object *lo, int cnt);
+
/* lod_pool.c */
int lod_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count);
int lod_ost_pool_remove(struct ost_pool *op, __u32 idx);
int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
/* lod_qos.c */
-int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
- struct lu_attr *attr, const struct lu_buf *buf,
- struct thandle *th);
+int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
+ struct lu_attr *attr, const struct lu_buf *buf,
+ struct thandle *th);
int qos_add_tgt(struct lod_device*, struct lod_tgt_desc *);
int qos_del_tgt(struct lod_device *, struct lod_tgt_desc *);
void lod_qos_rr_init(struct lod_qos_rr *lqr);
+int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
+ const struct lu_buf *);
/* lproc_lod.c */
int lod_procfs_init(struct lod_device *lod);
struct thandle *th);
void lod_object_free_striping(const struct lu_env *env, struct lod_object *lo);
+struct lod_obj_stripe_cb_data {
+ union {
+ const struct lu_attr *locd_attr;
+ struct ost_pool *locd_inuse;
+ };
+ bool locd_declare;
+};
+
+typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
+ struct lod_object *lo, struct dt_object *dt,
+ struct thandle *th, int stripe_idx,
+ struct lod_obj_stripe_cb_data *data);
+
+int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
+ struct thandle *th, lod_obj_stripe_cb_t cb,
+ struct lod_obj_stripe_cb_data *data);
+
/* lod_sub_object.c */
struct thandle *lod_sub_get_thandle(const struct lu_env *env,
struct thandle *th,
RETURN(0);
}
+static void lod_free_comp_buffer(struct lod_layout_component *entries,
+ __u16 count, __u32 bufsize)
+{
+ struct lod_layout_component *entry;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ entry = &entries[i];
+ if (entry->llc_pool != NULL)
+ lod_set_pool(&entry->llc_pool, NULL);
+ LASSERT(entry->llc_stripe == NULL);
+ LASSERT(entry->llc_stripes_allocated == 0);
+ }
+
+ if (bufsize != 0)
+ OBD_FREE_LARGE(entries, bufsize);
+}
+
+void lod_free_def_comp_entries(struct lod_default_striping *lds)
+{
+ lod_free_comp_buffer(lds->lds_def_comp_entries,
+ lds->lds_def_comp_size_cnt,
+ size_roundup_power2(
+ sizeof(*lds->lds_def_comp_entries) *
+ lds->lds_def_comp_size_cnt));
+ lds->lds_def_comp_entries = NULL;
+ lds->lds_def_comp_cnt = 0;
+ lds->lds_def_striping_is_composite = 0;
+ lds->lds_def_comp_size_cnt = 0;
+}
+
/**
- * Make LOV EA for striped object.
+ * Resize per-thread storage to hold default striping component entries
+ *
+ * A helper function to resize per-thread temporary storage. This storage
+ * is used to hold default LOV/LVM EAs and may be quite large. We do not want
+ * to allocate/release it every time, so instead we put it into the env and
+ * reallocate it on demand. The memory is released when the correspondent
+ * thread is finished.
*
- * Generate striping information and store it in the LOV EA of the given
- * object. The caller must ensure nobody else is calling the function
- * against the object concurrently. The transaction must be started.
- * FLDB service must be running as well; it's used to map FID to the target,
- * which is stored in LOV EA.
+ * \param[in,out] lds default striping
+ * \param[in] count new component count to grow the buffer to
+
+ * \retval 0 on success, -ENOMEM if reallocation failed
+ */
+int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count)
+{
+ struct lod_layout_component *entries;
+ __u32 new = size_roundup_power2(sizeof(*lds->lds_def_comp_entries) *
+ count);
+ __u32 old = size_roundup_power2(sizeof(*lds->lds_def_comp_entries) *
+ lds->lds_def_comp_size_cnt);
+
+ if (new <= old)
+ return 0;
+
+ OBD_ALLOC_LARGE(entries, new);
+ if (entries == NULL)
+ return -ENOMEM;
+
+ if (lds->lds_def_comp_entries != NULL) {
+ CDEBUG(D_INFO, "default striping component size %d is not "
+ "enough, need %d\n", old, new);
+ lod_free_def_comp_entries(lds);
+ }
+
+ lds->lds_def_comp_entries = entries;
+ lds->lds_def_comp_size_cnt = count;
+
+ RETURN(0);
+}
+
+void lod_free_comp_entries(struct lod_object *lo)
+{
+ lod_free_comp_buffer(lo->ldo_comp_entries,
+ lo->ldo_comp_cnt,
+ sizeof(*lo->ldo_comp_entries) * lo->ldo_comp_cnt);
+ lo->ldo_comp_entries = NULL;
+ lo->ldo_comp_cnt = 0;
+ lo->ldo_is_composite = 0;
+}
+
+int lod_alloc_comp_entries(struct lod_object *lo, int cnt)
+{
+ LASSERT(cnt != 0);
+ LASSERT(lo->ldo_comp_cnt == 0 && lo->ldo_comp_entries == NULL);
+
+ OBD_ALLOC_LARGE(lo->ldo_comp_entries,
+ sizeof(*lo->ldo_comp_entries) * cnt);
+ if (lo->ldo_comp_entries == NULL)
+ return -ENOMEM;
+ lo->ldo_comp_cnt = cnt;
+ return 0;
+}
+
+/**
+ * Generate on-disk lov_mds_md structure for each layout component based on
+ * the information in lod_object->ldo_comp_entries[i].
*
* \param[in] env execution environment for this thread
* \param[in] lo LOD object
- * \param[in] th transaction handle
+ * \param[in] comp_idx index of ldo_comp_entries
+ * \param[in] lmm buffer to cotain the on-disk lov_mds_md
+ * \param[in|out] lmm_size buffer size/lmm size
+ * \param[in] is_dir generate lov ea for dir or file? For dir case,
+ * the stripe info is from the default stripe
+ * template, which is collected in lod_ah_init(),
+ * either from parent object or root object; for
+ * file case, it's from the @lo object
*
- * \retval 0 if LOV EA is stored successfully
+ * \retval 0 if on disk structure is created successfully
* \retval negative error number on failure
*/
-int lod_generate_and_set_lovea(const struct lu_env *env,
- struct lod_object *lo, struct thandle *th)
+static int lod_gen_component_ea(const struct lu_env *env,
+ struct lod_object *lo, int comp_idx,
+ struct lov_mds_md *lmm, int *lmm_size,
+ bool is_dir)
{
struct lod_thread_info *info = lod_env_info(env);
- struct dt_object *next = dt_object_child(&lo->ldo_obj);
const struct lu_fid *fid = lu_object_fid(&lo->ldo_obj.do_lu);
- struct lov_mds_md_v1 *lmm;
+ struct lod_device *lod;
struct lov_ost_data_v1 *objs;
- __u32 magic;
- int i, rc;
- size_t lmm_size;
+ struct lod_layout_component *lod_comp;
+ __u32 magic;
+ int i, rc = 0;
ENTRY;
LASSERT(lo);
+ if (is_dir)
+ lod_comp =
+ &lo->ldo_def_striping->lds_def_comp_entries[comp_idx];
+ else
+ lod_comp = &lo->ldo_comp_entries[comp_idx];
- magic = lo->ldo_pool != NULL ? LOV_MAGIC_V3 : LOV_MAGIC_V1;
- lmm_size = lov_mds_md_size(lo->ldo_stripenr, magic);
- if (info->lti_ea_store_size < lmm_size) {
- rc = lod_ea_store_resize(info, lmm_size);
- if (rc)
- RETURN(rc);
- }
-
- if (lo->ldo_pattern == 0) /* default striping */
- lo->ldo_pattern = LOV_PATTERN_RAID0;
-
- lmm = info->lti_ea_store;
+ magic = lod_comp->llc_pool != NULL ? LOV_MAGIC_V3 : LOV_MAGIC_V1;
+ if (lod_comp->llc_pattern == 0) /* default striping */
+ lod_comp->llc_pattern = LOV_PATTERN_RAID0;
lmm->lmm_magic = cpu_to_le32(magic);
- lmm->lmm_pattern = cpu_to_le32(lo->ldo_pattern);
+ lmm->lmm_pattern = cpu_to_le32(lod_comp->llc_pattern);
fid_to_lmm_oi(fid, &lmm->lmm_oi);
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_LMMOI))
lmm->lmm_oi.oi.oi_id++;
lmm_oi_cpu_to_le(&lmm->lmm_oi, &lmm->lmm_oi);
- lmm->lmm_stripe_size = cpu_to_le32(lo->ldo_stripe_size);
- lmm->lmm_stripe_count = cpu_to_le16(lo->ldo_stripenr);
- if (lo->ldo_pattern & LOV_PATTERN_F_RELEASED)
- lmm->lmm_stripe_count = cpu_to_le16(lo->ldo_released_stripenr);
- lmm->lmm_layout_gen = 0;
+
+ lmm->lmm_stripe_size = cpu_to_le32(lod_comp->llc_stripe_size);
+ lmm->lmm_stripe_count = cpu_to_le16(lod_comp->llc_stripenr);
+ /* for dir, lmm_layout_gen stores default stripe offset. */
+ lmm->lmm_layout_gen = is_dir ?
+ cpu_to_le16(lod_comp->llc_stripe_offset) :
+ cpu_to_le16(lod_comp->llc_layout_gen);
+
if (magic == LOV_MAGIC_V1) {
objs = &lmm->lmm_objects[0];
} else {
- struct lov_mds_md_v3 *v3 = (struct lov_mds_md_v3 *) lmm;
- size_t cplen = strlcpy(v3->lmm_pool_name, lo->ldo_pool,
- sizeof(v3->lmm_pool_name));
+ struct lov_mds_md_v3 *v3 = (struct lov_mds_md_v3 *)lmm;
+ size_t cplen = strlcpy(v3->lmm_pool_name,
+ lod_comp->llc_pool,
+ sizeof(v3->lmm_pool_name));
if (cplen >= sizeof(v3->lmm_pool_name))
RETURN(-E2BIG);
objs = &v3->lmm_objects[0];
}
- for (i = 0; i < lo->ldo_stripenr; i++) {
- struct lu_fid *fid = &info->lti_fid;
- struct lod_device *lod;
- __u32 index;
- int type = LU_SEQ_RANGE_OST;
+ if (is_dir || lod_comp->llc_pattern & LOV_PATTERN_F_RELEASED)
+ GOTO(done, rc = 0);
+
+ lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
+ for (i = 0; i < lod_comp->llc_stripenr; i++) {
+ struct dt_object *object;
+ __u32 ost_idx;
+ int type = LU_SEQ_RANGE_OST;
- lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
- LASSERT(lo->ldo_stripe[i]);
+ object = lod_comp->llc_stripe[i];
+ LASSERT(object != NULL);
+ info->lti_fid = *lu_object_fid(&object->do_lu);
- *fid = *lu_object_fid(&lo->ldo_stripe[i]->do_lu);
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_MULTIPLE_REF)) {
if (cfs_fail_val == 0)
- cfs_fail_val = fid->f_oid;
+ cfs_fail_val = info->lti_fid.f_oid;
else
- fid->f_oid = cfs_fail_val;
+ info->lti_fid.f_oid = cfs_fail_val;
}
- rc = fid_to_ostid(fid, &info->lti_ostid);
+ rc = fid_to_ostid(&info->lti_fid, &info->lti_ostid);
LASSERT(rc == 0);
ostid_cpu_to_le(&info->lti_ostid, &objs[i].l_ost_oi);
- objs[i].l_ost_gen = cpu_to_le32(0);
+ objs[i].l_ost_gen = cpu_to_le32(0);
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_FLD_LOOKUP))
rc = -ENOENT;
else
- rc = lod_fld_lookup(env, lod, fid,
- &index, &type);
+ rc = lod_fld_lookup(env, lod, &info->lti_fid,
+ &ost_idx, &type);
if (rc < 0) {
CERROR("%s: Can not locate "DFID": rc = %d\n",
- lod2obd(lod)->obd_name, PFID(fid), rc);
- lod_object_free_striping(env, lo);
+ lod2obd(lod)->obd_name, PFID(&info->lti_fid),
+ rc);
RETURN(rc);
}
- objs[i].l_ost_idx = cpu_to_le32(index);
+ objs[i].l_ost_idx = cpu_to_le32(ost_idx);
+ }
+done:
+ if (lmm_size != NULL)
+ *lmm_size = lov_mds_md_size(is_dir ?
+ 0 : lod_comp->llc_stripenr, magic);
+ RETURN(rc);
+}
+
+/**
+ * Generate component ID for new created component.
+ *
+ * \param[in] lo LOD object
+ * \param[in] comp_idx index of ldo_comp_entries
+ *
+ * \retval component ID on success
+ * \retval LCME_ID_INVAL on failure
+ */
+static __u32 lod_gen_component_id(struct lod_object *lo, int comp_idx)
+{
+ struct lod_layout_component *lod_comp;
+ __u32 id, start, end;
+ int i;
+
+ LASSERT(lo->ldo_comp_entries[comp_idx].llc_id == LCME_ID_INVAL);
+
+ lod_obj_inc_layout_gen(lo);
+ id = lo->ldo_layout_gen;
+ if (likely(id <= LCME_ID_MAX))
+ return id;
+
+ /* Layout generation wraps, need to check collisions. */
+ start = id & LCME_ID_MASK;
+ end = (__u32)LCME_ID_MAX + 1;
+again:
+ for (id = start; id < end; id++) {
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ lod_comp = &lo->ldo_comp_entries[i];
+ if (id == lod_comp->llc_id)
+ break;
+ }
+ /* Found the ununsed ID */
+ if (i == lo->ldo_comp_cnt)
+ return id;
+ }
+ if (end == (__u32)LCME_ID_MAX + 1) {
+ start = 0;
+ end = lo->ldo_layout_gen & LCME_ID_MASK;
+ goto again;
}
- info->lti_buf.lb_buf = lmm;
- info->lti_buf.lb_len = lmm_size;
- rc = lod_sub_object_xattr_set(env, next, &info->lti_buf, XATTR_NAME_LOV,
- 0, th);
- if (rc < 0) {
- lod_object_free_striping(env, lo);
+ return LCME_ID_INVAL;
+}
+
+/**
+ * Generate on-disk lov_mds_md structure based on the information in
+ * the lod_object->ldo_comp_entries.
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in] lo LOD object
+ * \param[in] lmm buffer to cotain the on-disk lov_mds_md
+ * \param[in|out] lmm_size buffer size/lmm size
+ * \param[in] is_dir generate lov ea for dir or file? For dir case,
+ * the stripe info is from the default stripe
+ * template, which is collected in lod_ah_init(),
+ * either from parent object or root object; for
+ * file case, it's from the @lo object
+ *
+ * \retval 0 if on disk structure is created successfully
+ * \retval negative error number on failure
+ */
+int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo,
+ struct lov_mds_md *lmm, int *lmm_size, bool is_dir)
+{
+ struct lov_comp_md_entry_v1 *lcme;
+ struct lov_comp_md_v1 *lcm;
+ struct lod_layout_component *comp_entries;
+ __u16 comp_cnt;
+ bool is_composite;
+ int i, rc = 0, offset;
+ ENTRY;
+
+ if (is_dir) {
+ comp_cnt = lo->ldo_def_striping->lds_def_comp_cnt;
+ comp_entries = lo->ldo_def_striping->lds_def_comp_entries;
+ is_composite =
+ lo->ldo_def_striping->lds_def_striping_is_composite;
+ } else {
+ comp_cnt = lo->ldo_comp_cnt;
+ comp_entries = lo->ldo_comp_entries;
+ is_composite = lo->ldo_is_composite;
+ }
+
+ LASSERT(lmm_size != NULL);
+ LASSERT(comp_cnt != 0 && comp_entries != NULL);
+
+ if (!is_composite) {
+ rc = lod_gen_component_ea(env, lo, 0, lmm, lmm_size, is_dir);
RETURN(rc);
}
+ lcm = (struct lov_comp_md_v1 *)lmm;
+ lcm->lcm_magic = cpu_to_le32(LOV_MAGIC_COMP_V1);
+ lcm->lcm_entry_count = cpu_to_le16(comp_cnt);
+
+ offset = sizeof(*lcm) + sizeof(*lcme) * comp_cnt;
+ LASSERT(offset % sizeof(__u64) == 0);
+
+ for (i = 0; i < comp_cnt; i++) {
+ struct lod_layout_component *lod_comp;
+ struct lov_mds_md *sub_md;
+ int size;
+
+ lod_comp = &comp_entries[i];
+ lcme = &lcm->lcm_entries[i];
+
+ if (lod_comp->llc_id == LCME_ID_INVAL && !is_dir) {
+ lod_comp->llc_id = lod_gen_component_id(lo, i);
+ if (lod_comp->llc_id == LCME_ID_INVAL)
+ GOTO(out, rc = -ERANGE);
+ }
+ lcme->lcme_id = cpu_to_le32(lod_comp->llc_id);
+ /* component must has been inistantiated */
+ LASSERT(ergo(!is_dir, lod_comp->llc_flags & LCME_FL_INIT));
+ lcme->lcme_flags = cpu_to_le32(lod_comp->llc_flags);
+ lcme->lcme_extent.e_start =
+ cpu_to_le64(lod_comp->llc_extent.e_start);
+ lcme->lcme_extent.e_end =
+ cpu_to_le64(lod_comp->llc_extent.e_end);
+ lcme->lcme_offset = cpu_to_le32(offset);
+
+ sub_md = (struct lov_mds_md *)((char *)lcm + offset);
+ rc = lod_gen_component_ea(env, lo, i, sub_md, &size, is_dir);
+ if (rc)
+ GOTO(out, rc);
+ lcme->lcme_size = cpu_to_le32(size);
+ offset += size;
+ LASSERTF((offset <= *lmm_size) && (offset % sizeof(__u64) == 0),
+ "offset:%d lmm_size:%d\n", offset, *lmm_size);
+ }
+ lcm->lcm_size = cpu_to_le32(offset);
+ lcm->lcm_layout_gen = cpu_to_le32(is_dir ? 0 : lo->ldo_layout_gen);
+
+ lustre_print_user_md(D_LAYOUT, (struct lov_user_md *)lmm,
+ "generate lum");
+out:
+ if (rc == 0)
+ *lmm_size = offset;
RETURN(rc);
}
* \param[in] env execution environment for this thread
* \param[in,out] lo LOD object
* \param[in] objs an array of IDs to creates the objects from
+ * \param[in] comp_idx index of ldo_comp_entries
*
* \retval 0 if the objects are instantiated successfully
* \retval negative error number on failure
*/
int lod_initialize_objects(const struct lu_env *env, struct lod_object *lo,
- struct lov_ost_data_v1 *objs)
+ struct lov_ost_data_v1 *objs, int comp_idx)
{
+ struct lod_layout_component *lod_comp;
struct lod_thread_info *info = lod_env_info(env);
struct lod_device *md;
struct lu_object *o, *n;
LASSERT(lo != NULL);
md = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
- LASSERT(lo->ldo_stripe == NULL);
- LASSERT(lo->ldo_stripenr > 0);
- LASSERT(lo->ldo_stripe_size > 0);
- stripe_len = lo->ldo_stripenr;
+ LASSERT(lo->ldo_comp_cnt != 0 && lo->ldo_comp_entries != NULL);
+ lod_comp = &lo->ldo_comp_entries[comp_idx];
+
+ LASSERT(lod_comp->llc_stripe == NULL);
+ LASSERT(lod_comp->llc_stripenr > 0);
+ LASSERT(lod_comp->llc_stripe_size > 0);
+
+ stripe_len = lod_comp->llc_stripenr;
OBD_ALLOC(stripe, sizeof(stripe[0]) * stripe_len);
if (stripe == NULL)
RETURN(-ENOMEM);
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lod_comp->llc_stripenr; i++) {
if (unlikely(lovea_slot_is_dummy(&objs[i])))
continue;
dt_object_put(env, stripe[i]);
OBD_FREE(stripe, sizeof(stripe[0]) * stripe_len);
- lo->ldo_stripenr = 0;
+ lod_comp->llc_stripenr = 0;
} else {
- lo->ldo_stripe = stripe;
- lo->ldo_stripes_allocated = stripe_len;
+ lod_comp->llc_stripe = stripe;
+ lod_comp->llc_stripes_allocated = stripe_len;
}
RETURN(rc);
const struct lu_buf *buf)
{
struct lov_mds_md_v1 *lmm;
+ struct lov_comp_md_v1 *comp_v1 = NULL;
struct lov_ost_data_v1 *objs;
- __u32 magic;
- __u32 pattern;
- int rc = 0;
+ __u32 magic, pattern;
+ int i, rc = 0;
+ __u16 comp_cnt;
ENTRY;
LASSERT(buf);
LASSERT(buf->lb_buf);
LASSERT(buf->lb_len);
- lmm = (struct lov_mds_md_v1 *) buf->lb_buf;
+ lmm = (struct lov_mds_md_v1 *)buf->lb_buf;
magic = le32_to_cpu(lmm->lmm_magic);
- pattern = le32_to_cpu(lmm->lmm_pattern);
- if (magic != LOV_MAGIC_V1 && magic != LOV_MAGIC_V3)
+ if (magic != LOV_MAGIC_V1 && magic != LOV_MAGIC_V3 &&
+ magic != LOV_MAGIC_COMP_V1)
GOTO(out, rc = -EINVAL);
- if (lov_pattern(pattern) != LOV_PATTERN_RAID0)
- GOTO(out, rc = -EINVAL);
-
- lo->ldo_pattern = pattern;
- lo->ldo_stripe_size = le32_to_cpu(lmm->lmm_stripe_size);
- lo->ldo_layout_gen = le16_to_cpu(lmm->lmm_layout_gen);
- lo->ldo_stripenr = le16_to_cpu(lmm->lmm_stripe_count);
- /* released file stripenr fixup. */
- if (pattern & LOV_PATTERN_F_RELEASED)
- lo->ldo_stripenr = 0;
- LASSERT(buf->lb_len >= lov_mds_md_size(lo->ldo_stripenr, magic));
+ lod_free_comp_entries(lo);
- if (magic == LOV_MAGIC_V3) {
- struct lov_mds_md_v3 *v3 = (struct lov_mds_md_v3 *) lmm;
- objs = &v3->lmm_objects[0];
- /* no need to set pool, which is used in create only */
+ if (magic == LOV_MAGIC_COMP_V1) {
+ comp_v1 = (struct lov_comp_md_v1 *)lmm;
+ comp_cnt = le16_to_cpu(comp_v1->lcm_entry_count);
+ if (comp_cnt == 0)
+ GOTO(out, rc = -EINVAL);
+ lo->ldo_layout_gen = le32_to_cpu(comp_v1->lcm_layout_gen);
+ lo->ldo_is_composite = 1;
} else {
- objs = &lmm->lmm_objects[0];
+ comp_cnt = 1;
+ lo->ldo_layout_gen = le16_to_cpu(lmm->lmm_layout_gen);
+ lo->ldo_is_composite = 0;
}
- if (lo->ldo_stripenr > 0)
- rc = lod_initialize_objects(env, lo, objs);
+ rc = lod_alloc_comp_entries(lo, comp_cnt);
+ if (rc)
+ GOTO(out, rc);
+
+ for (i = 0; i < comp_cnt; i++) {
+ struct lod_layout_component *lod_comp;
+ struct lu_extent *ext;
+ __u32 offs;
+
+ lod_comp = &lo->ldo_comp_entries[i];
+ if (lo->ldo_is_composite) {
+ offs = le32_to_cpu(comp_v1->lcm_entries[i].lcme_offset);
+ lmm = (struct lov_mds_md_v1 *)((char *)comp_v1 + offs);
+ magic = le32_to_cpu(lmm->lmm_magic);
+
+ ext = &comp_v1->lcm_entries[i].lcme_extent;
+ lod_comp->llc_extent.e_start =
+ le64_to_cpu(ext->e_start);
+ lod_comp->llc_extent.e_end = le64_to_cpu(ext->e_end);
+ lod_comp->llc_flags =
+ le32_to_cpu(comp_v1->lcm_entries[i].lcme_flags);
+ lod_comp->llc_id =
+ le32_to_cpu(comp_v1->lcm_entries[i].lcme_id);
+ if (lod_comp->llc_id == LCME_ID_INVAL)
+ GOTO(out, rc = -EINVAL);
+ } else {
+ lod_comp->llc_flags = LCME_FL_INIT;
+ }
+
+ pattern = le32_to_cpu(lmm->lmm_pattern);
+ if (lov_pattern(pattern) != LOV_PATTERN_RAID0)
+ GOTO(out, rc = -EINVAL);
+
+ lod_comp->llc_pattern = pattern;
+ lod_comp->llc_stripe_size = le32_to_cpu(lmm->lmm_stripe_size);
+ lod_comp->llc_stripenr = le16_to_cpu(lmm->lmm_stripe_count);
+ lod_comp->llc_layout_gen = le16_to_cpu(lmm->lmm_layout_gen);
+ if (magic == LOV_MAGIC_V3) {
+ struct lov_mds_md_v3 *v3 = (struct lov_mds_md_v3 *)lmm;
+ objs = &v3->lmm_objects[0];
+ /* no need to set pool, which is used in create only */
+ } else {
+ objs = &lmm->lmm_objects[0];
+ }
+
+ if (!(lod_comp->llc_pattern & LOV_PATTERN_F_RELEASED)) {
+ rc = lod_initialize_objects(env, lo, objs, i);
+ if (rc)
+ GOTO(out, rc);
+ }
+ }
out:
+ if (rc)
+ lod_object_free_striping(env, lo);
RETURN(rc);
}
/**
+ * Check whether the striping (LOVEA for regular file, LMVEA for directory)
+ * is already cached.
+ *
+ * \param[in] lo LOD object
+ *
+ * \retval True if the striping is cached, otherwise
+ * return false.
+ */
+static bool lod_striping_loaded(struct lod_object *lo)
+{
+ if (S_ISREG(lod2lu_obj(lo)->lo_header->loh_attr) &&
+ lo->ldo_comp_cached)
+ return true;
+
+ if (S_ISDIR(lod2lu_obj(lo)->lo_header->loh_attr)) {
+ if (lo->ldo_stripe != NULL)
+ return true;
+
+ /* Never load LMV stripe for slaves of striped dir */
+ if (lo->ldo_dir_slave_stripe)
+ return true;
+ }
+
+ return false;
+}
+
+/**
* Initialize the object representing the stripes.
*
* Unless the stripes are initialized already, fetch LOV (for regular
* objects) or LMV (for directory objects) EA and call lod_parse_striping()
- * to instantiate the objects representing the stripes.
+ * to instantiate the objects representing the stripes. Caller should
+ * hold the dt_write_lock(next).
*
* \param[in] env execution environment for this thread
* \param[in,out] lo LOD object
int rc = 0;
ENTRY;
- /* already initialized? */
- if (lo->ldo_stripe != NULL)
- GOTO(out, rc = 0);
-
if (!dt_object_exists(next))
GOTO(out, rc = 0);
- /* Do not load stripe for slaves of striped dir */
- if (lo->ldo_dir_slave_stripe)
+ if (lod_striping_loaded(lo))
GOTO(out, rc = 0);
- if (S_ISREG(lu_object_attr(lod2lu_obj(lo)))) {
+ if (S_ISREG(lod2lu_obj(lo)->lo_header->loh_attr)) {
rc = lod_get_lov_ea(env, lo);
if (rc <= 0)
GOTO(out, rc);
buf->lb_buf = info->lti_ea_store;
buf->lb_len = info->lti_ea_store_size;
rc = lod_parse_striping(env, lo, buf);
- } else if (S_ISDIR(lu_object_attr(lod2lu_obj(lo)))) {
+ if (rc == 0)
+ lo->ldo_comp_cached = 1;
+ } else if (S_ISDIR(lod2lu_obj(lo)->lo_header->loh_attr)) {
rc = lod_get_lmv_ea(env, lo);
if (rc < (typeof(rc))sizeof(struct lmv_mds_md_v1))
GOTO(out, rc = rc > 0 ? -EINVAL : rc);
}
/*
- * there is LOV EA (striping information) in this object
+ * there is LMV EA (striping information) in this object
* let's parse it and create in-core objects for the stripes
*/
rc = lod_parse_dir_striping(env, lo, buf);
int lod_load_striping(const struct lu_env *env, struct lod_object *lo)
{
struct dt_object *next = dt_object_child(&lo->ldo_obj);
- int rc = 0;
+ int rc;
+
+ if (!dt_object_exists(next))
+ return 0;
+
+ /* Check without locking first */
+ if (lod_striping_loaded(lo))
+ return 0;
/* currently this code is supposed to be called from declaration
* phase only, thus the object is not expected to be locked by caller */
}
/**
- * Verify striping.
+ * Verify lov_user_md_v1/v3 striping.
*
* Check the validity of all fields including the magic, stripe size,
* stripe count, stripe offset and that the pool is present. Also check
* \retval 0 if the striping is valid
* \retval -EINVAL if striping is invalid
*/
-int lod_verify_striping(struct lod_device *d, const struct lu_buf *buf,
- bool is_from_disk)
+static int lod_verify_v1v3(struct lod_device *d, const struct lu_buf *buf,
+ bool is_from_disk)
{
struct lov_user_md_v1 *lum;
struct lov_user_md_v3 *lum3;
lum = buf->lb_buf;
- LASSERT(sizeof(*lum) < sizeof(*lum3));
-
if (buf->lb_len < sizeof(*lum)) {
- CDEBUG(D_IOCTL, "buf len %zu too small for lov_user_md\n",
+ CDEBUG(D_LAYOUT, "buf len %zu too small for lov_user_md\n",
buf->lb_len);
GOTO(out, rc = -EINVAL);
}
- magic = le32_to_cpu(lum->lmm_magic);
+ magic = le32_to_cpu(lum->lmm_magic) & ~LOV_MAGIC_DEF;
if (magic != LOV_USER_MAGIC_V1 &&
magic != LOV_USER_MAGIC_V3 &&
- magic != LOV_MAGIC_V1_DEF &&
- magic != LOV_MAGIC_V3_DEF) {
- CDEBUG(D_IOCTL, "bad userland LOV MAGIC: %#x\n", magic);
+ magic != LOV_USER_MAGIC_SPECIFIC) {
+ CDEBUG(D_LAYOUT, "bad userland LOV MAGIC: %#x\n",
+ le32_to_cpu(lum->lmm_magic));
GOTO(out, rc = -EINVAL);
}
if (!is_from_disk && lum->lmm_pattern == 0)
lum->lmm_pattern = cpu_to_le32(LOV_PATTERN_RAID0);
- if (le32_to_cpu(lum->lmm_pattern) != LOV_PATTERN_RAID0) {
- CDEBUG(D_IOCTL, "bad userland stripe pattern: %#x\n",
+ if (!lov_pattern_supported(le32_to_cpu(lum->lmm_pattern))) {
+ CDEBUG(D_LAYOUT, "bad userland stripe pattern: %#x\n",
le32_to_cpu(lum->lmm_pattern));
GOTO(out, rc = -EINVAL);
}
+ /* a released lum comes from creating orphan on hsm release,
+ * doesn't make sense to verify it. */
+ if (le32_to_cpu(lum->lmm_pattern) & LOV_PATTERN_F_RELEASED)
+ GOTO(out, rc = 0);
+
/* 64kB is the largest common page size we see (ia64), and matches the
* check in lfs */
stripe_size = le32_to_cpu(lum->lmm_stripe_size);
if (stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
- CDEBUG(D_IOCTL, "stripe size %u not a multiple of %u\n",
+ CDEBUG(D_LAYOUT, "stripe size %u not a multiple of %u\n",
stripe_size, LOV_MIN_STRIPE_SIZE);
GOTO(out, rc = -EINVAL);
}
stripe_offset = le16_to_cpu(lum->lmm_stripe_offset);
- if (stripe_offset != LOV_OFFSET_DEFAULT) {
+ if (!is_from_disk && stripe_offset != LOV_OFFSET_DEFAULT) {
/* if offset is not within valid range [0, osts_size) */
if (stripe_offset >= d->lod_osts_size) {
- CDEBUG(D_IOCTL, "stripe offset %u >= bitmap size %u\n",
+ CDEBUG(D_LAYOUT, "stripe offset %u >= bitmap size %u\n",
stripe_offset, d->lod_osts_size);
GOTO(out, rc = -EINVAL);
}
/* if lmm_stripe_offset is *not* in bitmap */
if (!cfs_bitmap_check(d->lod_ost_bitmap, stripe_offset)) {
- CDEBUG(D_IOCTL, "stripe offset %u not in bitmap\n",
+ CDEBUG(D_LAYOUT, "stripe offset %u not in bitmap\n",
stripe_offset);
GOTO(out, rc = -EINVAL);
}
}
- if (magic == LOV_USER_MAGIC_V1 || magic == LOV_MAGIC_V1_DEF)
+ if (magic == LOV_USER_MAGIC_V1)
lum_size = offsetof(struct lov_user_md_v1,
lmm_objects[0]);
- else if (magic == LOV_USER_MAGIC_V3 || magic == LOV_MAGIC_V3_DEF)
+ else if (magic == LOV_USER_MAGIC_V3 || magic == LOV_USER_MAGIC_SPECIFIC)
lum_size = offsetof(struct lov_user_md_v3,
lmm_objects[0]);
else
GOTO(out, rc = -EINVAL);
stripe_count = le16_to_cpu(lum->lmm_stripe_count);
- if (buf->lb_len != lum_size) {
- CDEBUG(D_IOCTL, "invalid buf len %zu for lov_user_md with "
+ if (buf->lb_len < lum_size) {
+ CDEBUG(D_LAYOUT, "invalid buf len %zu/%zu for lov_user_md with "
"magic %#x and stripe_count %u\n",
- buf->lb_len, magic, stripe_count);
+ buf->lb_len, lum_size, magic, stripe_count);
GOTO(out, rc = -EINVAL);
}
- if (!(magic == LOV_USER_MAGIC_V3 || magic == LOV_MAGIC_V3_DEF))
+ if (!(magic == LOV_USER_MAGIC_V3 || magic == LOV_USER_MAGIC_SPECIFIC))
goto out;
lum3 = buf->lb_buf;
- if (buf->lb_len < sizeof(*lum3)) {
- CDEBUG(D_IOCTL, "buf len %zu too small for lov_user_md_v3\n",
- buf->lb_len);
- GOTO(out, rc = -EINVAL);
- }
-
/* In the function below, .hs_keycmp resolves to
* pool_hashkey_keycmp() */
/* coverity[overrun-buffer-val] */
if (pool == NULL)
goto out;
- if (stripe_offset != LOV_OFFSET_DEFAULT) {
+ if (!is_from_disk && stripe_offset != LOV_OFFSET_DEFAULT) {
rc = lod_check_index_in_pool(stripe_offset, pool);
if (rc < 0)
GOTO(out, rc = -EINVAL);
}
if (is_from_disk && stripe_count > pool_tgt_count(pool)) {
- CDEBUG(D_IOCTL,
- "stripe count %u > # OSTs %u in the pool\n",
+ CDEBUG(D_LAYOUT, "stripe count %u > # OSTs %u in the pool\n",
stripe_count, pool_tgt_count(pool));
GOTO(out, rc = -EINVAL);
}
RETURN(rc);
}
+/**
+ * Verify LOV striping.
+ *
+ * \param[in] d LOD device
+ * \param[in] buf buffer with LOV EA to verify
+ * \param[in] is_from_disk 0 - from user, allow some fields to be 0
+ * 1 - from disk, do not allow
+ * \param[in] start extent start for composite layout
+ *
+ * \retval 0 if the striping is valid
+ * \retval -EINVAL if striping is invalid
+ */
+int lod_verify_striping(struct lod_device *d, const struct lu_buf *buf,
+ bool is_from_disk, __u64 start)
+{
+ struct lov_user_md_v1 *lum;
+ struct lov_comp_md_v1 *comp_v1;
+ __u32 magic;
+ int rc = 0, i;
+ ENTRY;
+
+ lum = buf->lb_buf;
+
+ if (buf->lb_len < sizeof(*lum)) {
+ CDEBUG(D_LAYOUT, "buf len %zu too small for lov_user_md\n",
+ buf->lb_len);
+ RETURN(-EINVAL);
+ }
+
+ magic = le32_to_cpu(lum->lmm_magic) & ~LOV_MAGIC_DEF;
+ if (magic != LOV_USER_MAGIC_V1 &&
+ magic != LOV_USER_MAGIC_V3 &&
+ magic != LOV_USER_MAGIC_SPECIFIC &&
+ magic != LOV_USER_MAGIC_COMP_V1) {
+ CDEBUG(D_LAYOUT, "bad userland LOV MAGIC: %#x\n",
+ le32_to_cpu(lum->lmm_magic));
+ RETURN(-EINVAL);
+ }
+
+ if (magic == LOV_USER_MAGIC_COMP_V1) {
+ struct lov_comp_md_entry_v1 *ent;
+ struct lu_extent *ext;
+ struct lov_desc *desc = &d->lod_desc;
+ struct lu_buf tmp;
+ __u32 stripe_size = 0;
+ __u64 prev_end = start;
+
+ comp_v1 = buf->lb_buf;
+ if (buf->lb_len < le32_to_cpu(comp_v1->lcm_size)) {
+ CDEBUG(D_LAYOUT, "buf len %zu is less than %u\n",
+ buf->lb_len, le32_to_cpu(comp_v1->lcm_size));
+ RETURN(-EINVAL);
+ }
+
+ if (le32_to_cpu(comp_v1->lcm_entry_count) == 0) {
+ CDEBUG(D_LAYOUT, "entry count is zero\n");
+ RETURN(-EINVAL);
+ }
+
+ for (i = 0; i < le32_to_cpu(comp_v1->lcm_entry_count); i++) {
+ ent = &comp_v1->lcm_entries[i];
+ ext = &ent->lcme_extent;
+
+ if (is_from_disk &&
+ (le32_to_cpu(ent->lcme_id) == 0 ||
+ le32_to_cpu(ent->lcme_id) > LCME_ID_MAX)) {
+ CDEBUG(D_LAYOUT, "invalid id %u\n",
+ le32_to_cpu(ent->lcme_id));
+ RETURN(-EINVAL);
+ }
+
+ if (le64_to_cpu(ext->e_start) >=
+ le64_to_cpu(ext->e_end)) {
+ CDEBUG(D_LAYOUT, "invalid extent "
+ "[%llu, %llu)\n",
+ le64_to_cpu(ext->e_start),
+ le64_to_cpu(ext->e_end));
+ RETURN(-EINVAL);
+ }
+
+ /* first component must start with 0, and the next
+ * must be adjacent with the previous one */
+ if (le64_to_cpu(ext->e_start) != prev_end) {
+ CDEBUG(D_LAYOUT, "invalid start "
+ "actual:%llu, expect:%llu\n",
+ le64_to_cpu(ext->e_start), prev_end);
+ RETURN(-EINVAL);
+ }
+ prev_end = le64_to_cpu(ext->e_end);
+
+ tmp.lb_buf = (char *)comp_v1 +
+ le32_to_cpu(ent->lcme_offset);
+ tmp.lb_len = le32_to_cpu(ent->lcme_size);
+ rc = lod_verify_v1v3(d, &tmp, is_from_disk);
+ if (rc)
+ break;
+
+ lum = tmp.lb_buf;
+
+ /* extent end must be aligned with the stripe_size */
+ stripe_size = le32_to_cpu(lum->lmm_stripe_size);
+ if (stripe_size == 0)
+ stripe_size = desc->ld_default_stripe_size;
+ if (stripe_size == 0 ||
+ (prev_end != LUSTRE_EOF &&
+ (prev_end & (stripe_size - 1)))) {
+ CDEBUG(D_LAYOUT, "stripe size isn't aligned. "
+ " stripe_sz: %u, [%llu, %llu)\n",
+ stripe_size, ext->e_start, prev_end);
+ RETURN(-EINVAL);
+ }
+ }
+ } else {
+ rc = lod_verify_v1v3(d, buf, is_from_disk);
+ }
+
+ RETURN(rc);
+}
+
void lod_fix_desc_stripe_size(__u64 *val)
{
if (*val < LOV_MIN_STRIPE_SIZE) {
struct dt_it *it_next;
ENTRY;
- LASSERT(lo->ldo_stripenr > 0);
+ LASSERT(lo->ldo_dir_stripenr > 0);
next = lo->ldo_stripe[0];
LASSERT(next != NULL);
LASSERT(next->do_index_ops != NULL);
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); \
+#define LOD_CHECK_STRIPED_IT(env, it, lo) \
+do { \
+ LASSERT((it)->lit_obj != NULL); \
+ LASSERT((it)->lit_it != NULL); \
+ LASSERT((lo)->ldo_dir_stripenr > 0); \
+ LASSERT((it)->lit_stripe_index < (lo)->ldo_dir_stripenr); \
} while (0)
/**
}
/* go to next stripe */
- if (it->lit_stripe_index + 1 >= lo->ldo_stripenr)
+ if (it->lit_stripe_index + 1 >= lo->ldo_dir_stripenr)
RETURN(1);
it->lit_stripe_index++;
if (rc != 0)
RETURN(rc);
- if (lo->ldo_stripenr > 0) {
+ if (lo->ldo_dir_stripenr > 0) {
int i;
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
if (dt_object_exists(lo->ldo_stripe[i]) == 0)
continue;
rc = lo->ldo_stripe[i]->do_ops->do_index_try(env,
return dt_attr_get(env, dt_object_child(dt), attr);
}
+int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
+ struct thandle *th, lod_obj_stripe_cb_t cb,
+ struct lod_obj_stripe_cb_data *data)
+{
+ struct lod_layout_component *lod_comp;
+ int i, j, rc;
+ ENTRY;
+
+ LASSERT(lo->ldo_comp_cnt != 0 && lo->ldo_comp_entries != NULL);
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ lod_comp = &lo->ldo_comp_entries[i];
+
+ if (lod_comp->llc_stripe == NULL)
+ continue;
+
+ LASSERT(lod_comp->llc_stripenr > 0);
+ for (j = 0; j < lod_comp->llc_stripenr; j++) {
+ struct dt_object *dt = lod_comp->llc_stripe[j];
+
+ if (dt == NULL)
+ continue;
+ rc = cb(env, lo, dt, th, j, data);
+ if (rc != 0)
+ RETURN(rc);
+ }
+ }
+ RETURN(0);
+}
+
+static inline int
+lod_obj_stripe_attr_set_cb(const struct lu_env *env, struct lod_object *lo,
+ struct dt_object *dt, struct thandle *th,
+ int stripe_idx, struct lod_obj_stripe_cb_data *data)
+{
+ if (data->locd_declare)
+ return lod_sub_object_declare_attr_set(env, dt,
+ data->locd_attr, th);
+ else
+ return lod_sub_object_attr_set(env, dt, data->locd_attr, th);
+}
+
/**
* Implementation of dt_object_operations::do_declare_attr_set.
*
if (rc)
RETURN(rc);
- if (lo->ldo_stripenr == 0)
+ if (!lod_obj_is_striped(dt))
RETURN(0);
/*
* if object is striped declare changes on the stripes
*/
- LASSERT(lo->ldo_stripe);
- for (i = 0; i < lo->ldo_stripenr; i++) {
- if (lo->ldo_stripe[i] == NULL)
- continue;
- rc = lod_sub_object_declare_attr_set(env,
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ LASSERT(lo->ldo_stripe);
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
+ if (lo->ldo_stripe[i] == NULL)
+ continue;
+ rc = lod_sub_object_declare_attr_set(env,
lo->ldo_stripe[i], attr,
th);
- if (rc != 0)
- RETURN(rc);
+ if (rc != 0)
+ RETURN(rc);
+ }
+ } else {
+ struct lod_obj_stripe_cb_data data;
+
+ data.locd_attr = attr;
+ data.locd_declare = true;
+ rc = lod_obj_for_each_stripe(env, lo, th,
+ lod_obj_stripe_attr_set_cb, &data);
}
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_STRIPE) &&
RETURN(rc);
}
- if (lo->ldo_stripenr == 0)
+ if (!lod_obj_is_striped(dt))
RETURN(0);
/*
* if object is striped, apply changes to all the stripes
*/
- LASSERT(lo->ldo_stripe);
- for (i = 0; i < lo->ldo_stripenr; i++) {
- if (unlikely(lo->ldo_stripe[i] == NULL))
- continue;
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ LASSERT(lo->ldo_stripe);
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
+ if (unlikely(lo->ldo_stripe[i] == NULL))
+ continue;
- if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
- (dt_object_exists(lo->ldo_stripe[i]) == 0))
- continue;
+ if ((dt_object_exists(lo->ldo_stripe[i]) == 0))
+ continue;
- rc = lod_sub_object_attr_set(env, lo->ldo_stripe[i], attr, th);
- if (rc != 0)
- break;
+ rc = lod_sub_object_attr_set(env, lo->ldo_stripe[i],
+ attr, th);
+ if (rc != 0)
+ break;
+ }
+ } else {
+ struct lod_obj_stripe_cb_data data;
+
+ data.locd_attr = attr;
+ data.locd_declare = false;
+ rc = lod_obj_for_each_stripe(env, lo, th,
+ lod_obj_stripe_attr_set_cb, &data);
}
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_STRIPE) &&
static int lod_xattr_get(const struct lu_env *env, struct dt_object *dt,
struct lu_buf *buf, const char *name)
{
- struct lod_thread_info *info = lod_env_info(env);
- struct lod_device *dev = lu2lod_dev(dt->do_lu.lo_dev);
- int rc, is_root;
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *dev = lu2lod_dev(dt->do_lu.lo_dev);
+ int is_root;
+ int rc;
ENTRY;
rc = dt_xattr_get(env, dt_object_child(dt), buf, name);
RETURN(rc);
/*
+ * XXX: Only used by lfsck
+ *
* lod returns default striping on the real root of the device
* this is like the root stores default striping for the whole
* filesystem. historically we've been using a different approach
ENTRY;
LASSERT(lo->ldo_dir_striped != 0);
- LASSERT(lo->ldo_stripenr > 0);
- stripe_count = lo->ldo_stripenr;
+ LASSERT(lo->ldo_dir_stripenr > 0);
+ stripe_count = lo->ldo_dir_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));
}
out:
lo->ldo_stripe = stripe;
- lo->ldo_stripenr = le32_to_cpu(lmv1->lmv_stripe_count);
- lo->ldo_stripes_allocated = le32_to_cpu(lmv1->lmv_stripe_count);
+ lo->ldo_dir_stripenr = le32_to_cpu(lmv1->lmv_stripe_count);
+ lo->ldo_dir_stripes_allocated = le32_to_cpu(lmv1->lmv_stripe_count);
if (rc != 0)
lod_object_free_striping(env, lo);
GOTO(out, rc = -EINVAL);
rec->rec_type = S_IFDIR;
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
struct dt_object *dto = lo->ldo_stripe[i];
char *stripe_name = info->lti_key;
struct lu_name *sname;
lo->ldo_dir_striped = 1;
lo->ldo_stripe = stripe;
- lo->ldo_stripenr = i;
- lo->ldo_stripes_allocated = stripe_count;
+ lo->ldo_dir_stripenr = i;
+ lo->ldo_dir_stripes_allocated = stripe_count;
- if (lo->ldo_stripenr == 0)
+ if (lo->ldo_dir_stripenr == 0)
GOTO(out_put, rc = -ENOSPC);
rc = lod_dir_declare_create_stripes(env, dt, attr, dof, th);
if (stripe[i] != NULL)
dt_object_put(env, stripe[i]);
OBD_FREE(stripe, sizeof(stripe[0]) * stripe_count);
- lo->ldo_stripenr = 0;
- lo->ldo_stripes_allocated = 0;
+ lo->ldo_dir_stripenr = 0;
+ lo->ldo_dir_stripes_allocated = 0;
lo->ldo_stripe = NULL;
}
rc = lod_verify_md_striping(d, lum);
if (rc != 0)
RETURN(rc);
+ } else if (strcmp(name, XATTR_NAME_LOV) == 0) {
+ rc = lod_verify_striping(d, buf, false, 0);
+ if (rc != 0)
+ RETURN(rc);
}
rc = lod_sub_object_declare_xattr_set(env, next, buf, name, fl, th);
if (rc != 0)
RETURN(rc);
- if (lo->ldo_stripenr == 0)
+ if (lo->ldo_dir_stripenr == 0)
RETURN(0);
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
LASSERT(lo->ldo_stripe[i]);
rc = lod_sub_object_declare_xattr_set(env, lo->ldo_stripe[i],
RETURN(rc);
}
+static int
+lod_obj_stripe_replace_parent_fid_cb(const struct lu_env *env,
+ struct lod_object *lo,
+ struct dt_object *dt, struct thandle *th,
+ int stripe_idx,
+ struct lod_obj_stripe_cb_data *data)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct dt_object *obj = &lo->ldo_obj;
+ struct lu_buf *buf = &info->lti_buf;
+ struct filter_fid *ff = buf->lb_buf;
+ int rc;
+
+ rc = dt_xattr_get(env, dt, buf, XATTR_NAME_FID);
+ if (rc < 0)
+ return 0;
+
+ fid_le_to_cpu(&ff->ff_parent, &ff->ff_parent);
+ ff->ff_parent.f_seq = lu_object_fid(&obj->do_lu)->f_seq;
+ ff->ff_parent.f_oid = lu_object_fid(&obj->do_lu)->f_oid;
+ fid_cpu_to_le(&ff->ff_parent, &ff->ff_parent);
+
+ if (data->locd_declare)
+ rc = lod_sub_object_declare_xattr_set(env, dt, buf,
+ XATTR_NAME_FID,
+ LU_XATTR_REPLACE, th);
+ else
+ rc = lod_sub_object_xattr_set(env, dt, buf, XATTR_NAME_FID,
+ LU_XATTR_REPLACE, th);
+
+ return rc;
+}
+
/**
* Reset parent FID on OST object
*
* \param[in] declare if it is declare
*
* \retval 0 if reset succeeds
- * \retval negative errno if reset fais
+ * \retval negative errno if reset fails
*/
static int lod_object_replace_parent_fid(const struct lu_env *env,
struct dt_object *dt,
struct lod_thread_info *info = lod_env_info(env);
struct lu_buf *buf = &info->lti_buf;
struct filter_fid *ff;
- int i, rc;
+ struct lod_obj_stripe_cb_data data;
+ int rc;
ENTRY;
LASSERT(S_ISREG(dt->do_lu.lo_header->loh_attr));
if (rc != 0)
RETURN(rc);
- if (lo->ldo_stripenr == 0)
+ if (!lod_obj_is_striped(dt))
RETURN(0);
if (info->lti_ea_store_size < sizeof(*ff)) {
buf->lb_buf = info->lti_ea_store;
buf->lb_len = info->lti_ea_store_size;
- for (i = 0; i < lo->ldo_stripenr; i++) {
- if (lo->ldo_stripe[i] == NULL)
- continue;
+ data.locd_declare = declare;
+ rc = lod_obj_for_each_stripe(env, lo, th,
+ lod_obj_stripe_replace_parent_fid_cb, &data);
- rc = dt_xattr_get(env, lo->ldo_stripe[i], buf,
- XATTR_NAME_FID);
- if (rc < 0) {
- rc = 0;
+ RETURN(rc);
+}
+
+/**
+ * Declare component add. The xattr name is XATTR_LUSTRE_LOV.add, and
+ * the xattr value is binary lov_comp_md_v1 which contains component(s)
+ * to be added.
+ *
+ * \param[in] env execution environment
+ * \param[in] dt dt_object to add components on
+ * \param[in] buf buffer contains components to be added
+ * \parem[in] th thandle
+ *
+ * \retval 0 on success
+ * \retval negative errno on failure
+ */
+static int lod_declare_layout_add(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ struct thandle *th)
+{
+ struct lod_layout_component *comp_array, *lod_comp;
+ struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lov_desc *desc = &d->lod_desc;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lov_user_md_v1 *v1;
+ struct lov_user_md_v3 *v3;
+ struct lov_comp_md_v1 *comp_v1 = buf->lb_buf;
+ struct lu_extent *ext;
+ __u32 magic;
+ __u64 prev_end;
+ int i, rc, array_cnt;
+ ENTRY;
+
+ LASSERT(lo->ldo_is_composite);
+
+ magic = comp_v1->lcm_magic;
+ /* Replay request, see comment for LOV_MAGIC_DEF */
+ if (unlikely(le32_to_cpu(magic) == LOV_MAGIC_COMP_V1_DEF)) {
+ struct dt_object *next = dt_object_child(dt);
+
+ lod_object_free_striping(env, lo);
+ rc = lod_use_defined_striping(env, lo, buf);
+ if (rc == 0) {
+ lo->ldo_comp_cached = 1;
+ rc = lod_sub_object_declare_xattr_set(env, next, buf,
+ XATTR_NAME_LOV,
+ 0, th);
+ }
+ RETURN(rc);
+ }
+
+ prev_end = lo->ldo_comp_entries[lo->ldo_comp_cnt - 1].llc_extent.e_end;
+ rc = lod_verify_striping(d, buf, false, prev_end);
+ if (rc != 0)
+ RETURN(rc);
+
+ if (magic == __swab32(LOV_USER_MAGIC_COMP_V1)) {
+ lustre_swab_lov_comp_md_v1(comp_v1);
+ magic = comp_v1->lcm_magic;
+ }
+
+ if (magic != LOV_USER_MAGIC_COMP_V1)
+ RETURN(-EINVAL);
+
+ array_cnt = lo->ldo_comp_cnt + comp_v1->lcm_entry_count;
+ OBD_ALLOC(comp_array, sizeof(*comp_array) * array_cnt);
+ if (comp_array == NULL)
+ RETURN(-ENOMEM);
+
+ memcpy(comp_array, lo->ldo_comp_entries,
+ sizeof(*comp_array) * lo->ldo_comp_cnt);
+
+ for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+ v1 = (struct lov_user_md *)((char *)comp_v1 +
+ comp_v1->lcm_entries[i].lcme_offset);
+ ext = &comp_v1->lcm_entries[i].lcme_extent;
+
+ lod_comp = &comp_array[lo->ldo_comp_cnt + i];
+ lod_comp->llc_extent.e_start = ext->e_start;
+ lod_comp->llc_extent.e_end = ext->e_end;
+ lod_comp->llc_stripe_offset = v1->lmm_stripe_offset;
+
+ lod_comp->llc_stripenr = v1->lmm_stripe_count;
+ if (lod_comp->llc_stripenr <= 0)
+ lod_comp->llc_stripenr = desc->ld_default_stripe_count;
+ lod_comp->llc_stripe_size = v1->lmm_stripe_size;
+ if (lod_comp->llc_stripe_size <= 0)
+ lod_comp->llc_stripe_size =
+ desc->ld_default_stripe_size;
+
+ if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
+ int len;
+ v3 = (struct lov_user_md_v3 *) v1;
+ if (v3->lmm_pool_name[0] != '\0') {
+ len = strlen(v3->lmm_pool_name);
+ OBD_ALLOC(lod_comp->llc_pool, len + 1);
+ if (lod_comp->llc_pool == NULL)
+ GOTO(error, rc = -ENOMEM);
+ strncpy(lod_comp->llc_pool, v3->lmm_pool_name,
+ len + 1);
+ }
+ }
+ }
+
+ OBD_FREE(lo->ldo_comp_entries, sizeof(*lod_comp) * lo->ldo_comp_cnt);
+ lo->ldo_comp_entries = comp_array;
+ lo->ldo_comp_cnt = array_cnt;
+ /* No need to increase layout generation here, it will be increased
+ * later when generating component ID for the new components */
+
+ rc = lod_declare_striped_object(env, dt, NULL, NULL, th);
+ RETURN(rc);
+
+error:
+ for (i = lo->ldo_comp_cnt; i < array_cnt; i++) {
+ lod_comp = &comp_array[i];
+ if (lod_comp->llc_pool != NULL) {
+ OBD_FREE(lod_comp->llc_pool,
+ strlen(lod_comp->llc_pool) + 1);
+ lod_comp->llc_pool = NULL;
+ }
+ }
+ OBD_FREE(comp_array, sizeof(*comp_array) * array_cnt);
+ RETURN(rc);
+}
+
+static int lod_comp_md_size(struct lod_object *lo, bool is_dir)
+{
+ int magic, size = 0, i;
+ struct lod_layout_component *comp_entries;
+ __u16 comp_cnt;
+ bool is_composite;
+
+ if (is_dir) {
+ comp_cnt = lo->ldo_def_striping->lds_def_comp_cnt;
+ comp_entries = lo->ldo_def_striping->lds_def_comp_entries;
+ is_composite =
+ lo->ldo_def_striping->lds_def_striping_is_composite;
+ } else {
+ comp_cnt = lo->ldo_comp_cnt;
+ comp_entries = lo->ldo_comp_entries;
+ is_composite = lo->ldo_is_composite;
+ }
+
+
+ LASSERT(comp_cnt != 0 && comp_entries != NULL);
+ if (is_composite) {
+ size = sizeof(struct lov_comp_md_v1) +
+ sizeof(struct lov_comp_md_entry_v1) * comp_cnt;
+ LASSERT(size % sizeof(__u64) == 0);
+ }
+
+ for (i = 0; i < comp_cnt; i++) {
+ magic = comp_entries[i].llc_pool ? LOV_MAGIC_V3 : LOV_MAGIC_V1;
+
+ size += lov_user_md_size(
+ is_dir ? 0 : comp_entries[i].llc_stripenr,
+ magic);
+ LASSERT(size % sizeof(__u64) == 0);
+ }
+ return size;
+}
+
+/**
+ * Declare component set. The xattr is name XATTR_LUSTRE_LOV.set.$field,
+ * the '$field' can only be 'flags' now. The xattr value is binary
+ * lov_comp_md_v1 which contains the component ID(s) and the value of
+ * the field to be modified.
+ *
+ * \param[in] env execution environment
+ * \param[in] dt dt_object to be modified
+ * \param[in] op operation string, like "set.flags"
+ * \param[in] buf buffer contains components to be set
+ * \parem[in] th thandle
+ *
+ * \retval 0 on success
+ * \retval negative errno on failure
+ */
+static int lod_declare_layout_set(const struct lu_env *env,
+ struct dt_object *dt,
+ char *op, const struct lu_buf *buf,
+ struct thandle *th)
+{
+ struct lod_layout_component *lod_comp;
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lov_comp_md_v1 *comp_v1 = buf->lb_buf;
+ __u32 magic, id;
+ int i, j, rc;
+ bool changed = false;
+ ENTRY;
+
+ if (strcmp(op, "set.flags") != 0) {
+ CDEBUG(D_LAYOUT, "%s: operation (%s) not supported.\n",
+ lod2obd(d)->obd_name, op);
+ RETURN(-ENOTSUPP);
+ }
+
+ magic = comp_v1->lcm_magic;
+ if (magic == __swab32(LOV_USER_MAGIC_COMP_V1)) {
+ lustre_swab_lov_comp_md_v1(comp_v1);
+ magic = comp_v1->lcm_magic;
+ }
+
+ if (magic != LOV_USER_MAGIC_COMP_V1)
+ RETURN(-EINVAL);
+
+ if (comp_v1->lcm_entry_count == 0) {
+ CDEBUG(D_LAYOUT, "%s: entry count is zero.\n",
+ lod2obd(d)->obd_name);
+ RETURN(-EINVAL);
+ }
+
+ for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+ id = comp_v1->lcm_entries[i].lcme_id;
+
+ for (j = 0; j < lo->ldo_comp_cnt; j++) {
+ lod_comp = &lo->ldo_comp_entries[j];
+ if (id == lod_comp->llc_id || id == LCME_ID_ALL) {
+ lod_comp->llc_flags =
+ comp_v1->lcm_entries[i].lcme_flags;
+ changed = true;
+ }
+ }
+ }
+
+ if (!changed) {
+ CDEBUG(D_LAYOUT, "%s: requested component(s) not found.\n",
+ lod2obd(d)->obd_name);
+ RETURN(-EINVAL);
+ }
+
+ lod_obj_inc_layout_gen(lo);
+
+ info->lti_buf.lb_len = lod_comp_md_size(lo, false);
+ rc = lod_sub_object_declare_xattr_set(env, dt, &info->lti_buf,
+ XATTR_NAME_LOV, 0, th);
+ RETURN(rc);
+}
+
+/**
+ * Declare component deletion. The xattr name is XATTR_LUSTRE_LOV.del,
+ * and the xattr value is a unique component ID or a special lcme_id.
+ *
+ * \param[in] env execution environment
+ * \param[in] dt dt_object to be operated on
+ * \param[in] buf buffer contains component ID or lcme_id
+ * \parem[in] th thandle
+ *
+ * \retval 0 on success
+ * \retval negative errno on failure
+ */
+static int lod_declare_layout_del(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_buf *buf,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ 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);
+ struct lu_attr *attr = &lod_env_info(env)->lti_attr;
+ __u32 id;
+ int rc, i, j, left;
+ ENTRY;
+
+ LASSERT(lo->ldo_is_composite);
+
+ id = *(__u32 *)buf->lb_buf;
+ if (id == 0 || id == LCME_ID_NONE) {
+ CDEBUG(D_LAYOUT, "%s: invalid component id %#x\n",
+ lod2obd(d)->obd_name, id);
+ RETURN(-EINVAL);
+ }
+
+ left = lo->ldo_comp_cnt;
+ if (left <= 0)
+ RETURN(-EINVAL);
+
+ for (i = (lo->ldo_comp_cnt - 1); i >= 0; i--) {
+ struct lod_layout_component *lod_comp;
+
+ lod_comp = &lo->ldo_comp_entries[i];
+
+ if (id <= LCME_ID_MAX && id != lod_comp->llc_id)
+ continue;
+ else if (id > LCME_ID_MAX && id < LCME_ID_ALL &&
+ !(id & lod_comp->llc_flags))
continue;
+
+ if (left != (i + 1)) {
+ CDEBUG(D_LAYOUT, "%s: this deletion will create "
+ "a hole.\n", lod2obd(d)->obd_name);
+ RETURN(-EINVAL);
}
+ left--;
- ff = buf->lb_buf;
- fid_le_to_cpu(&ff->ff_parent, &ff->ff_parent);
- ff->ff_parent.f_seq = lu_object_fid(&dt->do_lu)->f_seq;
- ff->ff_parent.f_oid = lu_object_fid(&dt->do_lu)->f_oid;
- fid_cpu_to_le(&ff->ff_parent, &ff->ff_parent);
-
- if (declare) {
- rc = lod_sub_object_declare_xattr_set(env,
- lo->ldo_stripe[i], buf,
- XATTR_NAME_FID,
- LU_XATTR_REPLACE, th);
- } else {
- rc = lod_sub_object_xattr_set(env, lo->ldo_stripe[i],
- buf, XATTR_NAME_FID,
- LU_XATTR_REPLACE, th);
+ /* Mark the component as deleted */
+ lod_comp->llc_id = LCME_ID_INVAL;
+
+ /* Not instantiated component */
+ if (lod_comp->llc_stripe == NULL)
+ continue;
+
+ LASSERT(lod_comp->llc_stripenr > 0);
+ for (j = 0; j < lod_comp->llc_stripenr; j++) {
+ struct dt_object *obj = lod_comp->llc_stripe[j];
+
+ if (obj == NULL)
+ continue;
+ rc = lod_sub_object_declare_destroy(env, obj, th);
+ if (rc)
+ RETURN(rc);
}
- if (rc < 0)
- break;
}
+ LASSERTF(left >= 0, "left = %d\n", left);
+ if (left == lo->ldo_comp_cnt) {
+ CDEBUG(D_LAYOUT, "%s: requested component id:%#x not found\n",
+ lod2obd(d)->obd_name, id);
+ RETURN(-EINVAL);
+ }
+
+ memset(attr, 0, sizeof(*attr));
+ attr->la_valid = LA_SIZE;
+ rc = lod_sub_object_declare_attr_set(env, next, attr, th);
+ if (rc)
+ RETURN(rc);
+
+ if (left > 0) {
+ info->lti_buf.lb_len = lod_comp_md_size(lo, false);
+ rc = lod_sub_object_declare_xattr_set(env, next, &info->lti_buf,
+ XATTR_NAME_LOV, 0, th);
+ } else {
+ rc = lod_sub_object_declare_xattr_del(env, next, XATTR_NAME_LOV,
+ th);
+ }
+
+ RETURN(rc);
+}
+
+/**
+ * Declare layout add/set/del operations issued by special xattr names:
+ *
+ * XATTR_LUSTRE_LOV.add add component(s) to existing file
+ * XATTR_LUSTRE_LOV.del delete component(s) from existing file
+ * XATTR_LUSTRE_LOV.set.$field set specified field of certain component(s)
+ *
+ * \param[in] env execution environment
+ * \param[in] dt object
+ * \param[in] name name of xattr
+ * \param[in] buf lu_buf contains xattr value
+ * \param[in] th transaction handle
+ *
+ * \retval 0 on success
+ * \retval negative if failed
+ */
+static int lod_declare_modify_layout(const struct lu_env *env,
+ struct dt_object *dt,
+ const char *name,
+ const struct lu_buf *buf,
+ struct thandle *th)
+{
+ struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(&lo->ldo_obj);
+ char *op;
+ int rc, len = strlen(XATTR_LUSTRE_LOV);
+ ENTRY;
+
+ LASSERT(dt_object_exists(dt));
+
+ if (strlen(name) <= len || name[len] != '.') {
+ CDEBUG(D_LAYOUT, "%s: invalid xattr name: %s\n",
+ lod2obd(d)->obd_name, name);
+ RETURN(-EINVAL);
+ }
+ len++;
+
+ dt_write_lock(env, next, 0);
+ rc = lod_load_striping_locked(env, lo);
+ if (rc)
+ GOTO(unlock, rc);
+
+ /* the layout to be modified must be a composite layout */
+ if (!lo->ldo_is_composite) {
+ CDEBUG(D_LAYOUT, "%s: object "DFID" isn't a composite file.\n",
+ lod2obd(d)->obd_name, PFID(lu_object_fid(&dt->do_lu)));
+ GOTO(unlock, rc = -EINVAL);
+ }
+
+ op = (char *)name + len;
+ if (strcmp(op, "add") == 0) {
+ rc = lod_declare_layout_add(env, dt, buf, th);
+ } else if (strcmp(op, "del") == 0) {
+ rc = lod_declare_layout_del(env, dt, buf, th);
+ } else if (strncmp(op, "set", strlen("set")) == 0) {
+ rc = lod_declare_layout_set(env, dt, op, buf, th);
+ } else {
+ CDEBUG(D_LAYOUT, "%s: unsupported xattr name:%s\n",
+ lod2obd(d)->obd_name, name);
+ GOTO(unlock, rc = -ENOTSUPP);
+ }
+unlock:
+ if (rc)
+ lod_object_free_striping(env, lo);
+ dt_write_unlock(env, next);
+
RETURN(rc);
}
int rc;
ENTRY;
- /*
- * allow to declare predefined striping on a new (!mode) object
- * which is supposed to be replay of regular file creation
- * (when LOV setting is declared)
- * LU_XATTR_REPLACE is set to indicate a layout swap
- */
mode = dt->do_lu.lo_header->loh_attr & S_IFMT;
- if ((S_ISREG(mode) || mode == 0) && strcmp(name, XATTR_NAME_LOV) == 0 &&
- !(fl & LU_XATTR_REPLACE)) {
+ if ((S_ISREG(mode) || mode == 0) && !(fl & LU_XATTR_REPLACE) &&
+ (strcmp(name, XATTR_NAME_LOV) == 0 ||
+ strcmp(name, XATTR_LUSTRE_LOV) == 0)) {
/*
- * this is a request to manipulate object's striping
+ * this is a request to create object's striping.
+ *
+ * allow to declare predefined striping on a new (!mode) object
+ * which is supposed to be replay of regular file creation
+ * (when LOV setting is declared)
+ *
+ * LU_XATTR_REPLACE is set to indicate a layout swap
*/
if (dt_object_exists(dt)) {
rc = dt_attr_get(env, next, attr);
attr->la_mode = S_IFREG;
}
rc = lod_declare_striped_object(env, dt, attr, buf, th);
+ } else if (S_ISREG(mode) &&
+ strlen(name) > strlen(XATTR_LUSTRE_LOV) + 1 &&
+ strncmp(name, XATTR_LUSTRE_LOV,
+ strlen(XATTR_LUSTRE_LOV)) == 0) {
+ /*
+ * this is a request to modify object's striping.
+ * add/set/del component(s).
+ */
+ if (!dt_object_exists(dt))
+ RETURN(-ENOENT);
+
+ rc = lod_declare_modify_layout(env, dt, name, buf, th);
} else if (S_ISDIR(mode)) {
rc = lod_dir_declare_xattr_set(env, dt, buf, name, fl, th);
} else if (strcmp(name, XATTR_NAME_FID) == 0) {
* 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)
+ if (lo->ldo_dir_stripenr == 0 || strcmp(name, XATTR_NAME_LINK) == 0)
RETURN(0);
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
LASSERT(lo->ldo_stripe[i]);
rc = lod_sub_object_xattr_set(env, lo->ldo_stripe[i], buf, name,
if (rc != 0 || !S_ISDIR(dt->do_lu.lo_header->loh_attr))
RETURN(rc);
- if (lo->ldo_stripenr == 0)
+ if (lo->ldo_dir_stripenr == 0)
RETURN(rc);
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
LASSERT(lo->ldo_stripe[i]);
rc = lod_sub_object_xattr_del(env, lo->ldo_stripe[i], name,
const char *name, int fl,
struct thandle *th)
{
- struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
struct lov_user_md_v1 *lum;
struct lov_user_md_v3 *v3 = NULL;
const char *pool_name = NULL;
int rc;
+ bool is_del;
ENTRY;
LASSERT(buf != NULL && buf->lb_buf != NULL);
lum = buf->lb_buf;
- rc = lod_verify_striping(d, buf, false);
- if (rc)
- RETURN(rc);
-
- if (lum->lmm_magic == LOV_USER_MAGIC_V3) {
+ switch (lum->lmm_magic) {
+ case LOV_USER_MAGIC_V3:
v3 = buf->lb_buf;
if (v3->lmm_pool_name[0] != '\0')
pool_name = v3->lmm_pool_name;
+ /* fall through */
+ case LOV_USER_MAGIC_V1:
+ /* if { size, offset, count } = { 0, -1, 0 } and no pool
+ * (i.e. all default values specified) then delete default
+ * striping from dir. */
+ CDEBUG(D_LAYOUT,
+ "set default striping: sz %u # %u offset %d %s %s\n",
+ (unsigned)lum->lmm_stripe_size,
+ (unsigned)lum->lmm_stripe_count,
+ (int)lum->lmm_stripe_offset,
+ v3 ? "from" : "", v3 ? v3->lmm_pool_name : "");
+
+ is_del = LOVEA_DELETE_VALUES(lum->lmm_stripe_size,
+ lum->lmm_stripe_count,
+ lum->lmm_stripe_offset,
+ pool_name);
+ break;
+ case LOV_USER_MAGIC_COMP_V1:
+ is_del = false;
+ break;
+ default:
+ CERROR("Invalid magic %x\n", lum->lmm_magic);
+ RETURN(-EINVAL);
}
- /* if { size, offset, count } = { 0, -1, 0 } and no pool
- * (i.e. all default values specified) then delete default
- * striping from dir. */
- CDEBUG(D_OTHER,
- "set default striping: sz %u # %u offset %d %s %s\n",
- (unsigned)lum->lmm_stripe_size,
- (unsigned)lum->lmm_stripe_count,
- (int)lum->lmm_stripe_offset,
- v3 ? "from" : "", v3 ? v3->lmm_pool_name : "");
-
- if (LOVEA_DELETE_VALUES(lum->lmm_stripe_size, lum->lmm_stripe_count,
- lum->lmm_stripe_offset, pool_name)) {
+ if (is_del) {
rc = lod_xattr_del_internal(env, dt, name, th);
if (rc == -ENODATA)
rc = 0;
/* The stripes are supposed to be allocated in declare phase,
* if there are no stripes being allocated, it will skip */
- if (lo->ldo_stripenr == 0)
+ if (lo->ldo_dir_stripenr == 0)
RETURN(0);
rc = dt_attr_get(env, dt_object_child(dt), attr);
slave_lmv_buf.lb_len = sizeof(*slave_lmm);
rec->rec_type = S_IFDIR;
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
struct dt_object *dto;
char *stripe_name = info->lti_key;
struct lu_name *sname;
struct lod_thread_info *info = lod_env_info(env);
struct lod_object *lo = lod_dt_obj(dt);
const struct lod_default_striping *lds = lo->ldo_def_striping;
- const char *poolname = NULL;
int rc;
ENTRY;
lds->lds_def_striping_set ||
lds->lds_dir_def_striping_set));
- if (!LMVEA_DELETE_VALUES(lo->ldo_stripenr,
+ if (!LMVEA_DELETE_VALUES(lo->ldo_dir_stripenr,
lo->ldo_dir_stripe_offset)) {
struct lmv_user_md_v1 *v1 = info->lti_ea_store;
- int stripe_count = lo->ldo_stripenr;
+ int stripe_count = lo->ldo_dir_stripenr;
if (info->lti_ea_store_size < sizeof(*v1)) {
rc = lod_ea_store_resize(info, sizeof(*v1));
RETURN(rc);
}
- if (lds != NULL && lds->lds_def_pool[0] != '\0')
- poolname = lds->lds_def_pool;
-
/* Transfer default LOV striping from the parent */
if (lds != NULL && lds->lds_def_striping_set &&
- !LOVEA_DELETE_VALUES(lds->lds_def_stripe_size,
- lds->lds_def_stripenr,
- lds->lds_def_stripe_offset,
- poolname)) {
- 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));
+ lds->lds_def_comp_cnt != 0) {
+ struct lov_mds_md *lmm;
+ int lmm_size = lod_comp_md_size(lo, true);
+
+ if (info->lti_ea_store_size < lmm_size) {
+ rc = lod_ea_store_resize(info, lmm_size);
if (rc != 0)
RETURN(rc);
- v3 = info->lti_ea_store;
}
+ lmm = 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(lds->lds_def_stripenr);
- v3->lmm_stripe_offset = cpu_to_le16(lds->lds_def_stripe_offset);
- v3->lmm_stripe_size = cpu_to_le32(lds->lds_def_stripe_size);
- if (poolname != NULL)
- strlcpy(v3->lmm_pool_name, poolname,
- sizeof(v3->lmm_pool_name));
+ rc = lod_generate_lovea(env, lo, lmm, &lmm_size, true);
+ if (rc != 0)
+ RETURN(rc);
- info->lti_buf.lb_buf = v3;
- info->lti_buf.lb_len = sizeof(*v3);
+ info->lti_buf.lb_buf = lmm;
+ info->lti_buf.lb_len = lmm_size;
if (declare)
rc = lod_dir_declare_xattr_set(env, dt, &info->lti_buf,
}
/**
+ * Make LOV EA for striped object.
+ *
+ * Generate striping information and store it in the LOV EA of the given
+ * object. The caller must ensure nobody else is calling the function
+ * against the object concurrently. The transaction must be started.
+ * FLDB service must be running as well; it's used to map FID to the target,
+ * which is stored in LOV EA.
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in] lo LOD object
+ * \param[in] th transaction handle
+ *
+ * \retval 0 if LOV EA is stored successfully
+ * \retval negative error number on failure
+ */
+static int lod_generate_and_set_lovea(const struct lu_env *env,
+ struct lod_object *lo,
+ struct thandle *th)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct dt_object *next = dt_object_child(&lo->ldo_obj);
+ struct lov_mds_md_v1 *lmm;
+ int rc, lmm_size;
+ ENTRY;
+
+ LASSERT(lo);
+
+ if (lo->ldo_comp_cnt == 0) {
+ lod_object_free_striping(env, lo);
+ rc = lod_sub_object_xattr_del(env, next, XATTR_NAME_LOV, th);
+ RETURN(rc);
+ }
+
+ lmm_size = lod_comp_md_size(lo, false);
+ if (info->lti_ea_store_size < lmm_size) {
+ rc = lod_ea_store_resize(info, lmm_size);
+ if (rc)
+ RETURN(rc);
+ }
+ lmm = info->lti_ea_store;
+
+ rc = lod_generate_lovea(env, lo, lmm, &lmm_size, false);
+ if (rc)
+ RETURN(rc);
+
+ info->lti_buf.lb_buf = lmm;
+ info->lti_buf.lb_len = lmm_size;
+ rc = lod_sub_object_xattr_set(env, next, &info->lti_buf,
+ XATTR_NAME_LOV, 0, th);
+ RETURN(rc);
+}
+
+/**
+ * Delete layout component(s)
+ *
+ * \param[in] env execution environment for this thread
+ * \param[in] dt object
+ * \param[in] th transaction handle
+ *
+ * \retval 0 on success
+ * \retval negative error number on failure
+ */
+static int lod_layout_del(const struct lu_env *env, struct dt_object *dt,
+ struct thandle *th)
+{
+ struct lod_layout_component *lod_comp;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object *next = dt_object_child(dt);
+ struct lu_attr *attr = &lod_env_info(env)->lti_attr;
+ int rc, i, j, left;
+
+ LASSERT(lo->ldo_is_composite);
+ LASSERT(lo->ldo_comp_cnt > 0 && lo->ldo_comp_entries != NULL);
+
+ left = lo->ldo_comp_cnt;
+ for (i = (lo->ldo_comp_cnt - 1); i >= 0; i--) {
+ lod_comp = &lo->ldo_comp_entries[i];
+
+ if (lod_comp->llc_id != LCME_ID_INVAL)
+ break;
+ left--;
+
+ /* Not instantiated component */
+ if (lod_comp->llc_stripe == NULL)
+ continue;
+
+ LASSERT(lod_comp->llc_stripenr > 0);
+ for (j = 0; j < lod_comp->llc_stripenr; j++) {
+ struct dt_object *obj = lod_comp->llc_stripe[j];
+
+ if (obj == NULL)
+ continue;
+ rc = lod_sub_object_destroy(env, obj, th);
+ if (rc)
+ GOTO(out, rc);
+
+ lu_object_put(env, &obj->do_lu);
+ lod_comp->llc_stripe[j] = NULL;
+ }
+ OBD_FREE(lod_comp->llc_stripe, sizeof(struct dt_object *) *
+ lod_comp->llc_stripes_allocated);
+ lod_comp->llc_stripe = NULL;
+ lod_comp->llc_stripes_allocated = 0;
+ lod_obj_set_pool(lo, i, NULL);
+ }
+
+ LASSERTF(left >= 0 && left < lo->ldo_comp_cnt, "left = %d\n", left);
+ if (left > 0) {
+ struct lod_layout_component *comp_array;
+
+ OBD_ALLOC(comp_array, sizeof(*comp_array) * left);
+ if (comp_array == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ memcpy(&comp_array[0], &lo->ldo_comp_entries[0],
+ sizeof(*comp_array) * left);
+
+ OBD_FREE(lo->ldo_comp_entries,
+ sizeof(*comp_array) * lo->ldo_comp_cnt);
+ lo->ldo_comp_entries = comp_array;
+ lo->ldo_comp_cnt = left;
+ lod_obj_inc_layout_gen(lo);
+ } else {
+ lod_free_comp_entries(lo);
+ }
+
+ LASSERT(dt_object_exists(dt));
+ rc = dt_attr_get(env, next, attr);
+ if (rc)
+ GOTO(out, rc);
+
+ if (attr->la_size > 0) {
+ attr->la_size = 0;
+ attr->la_valid = LA_SIZE;
+ rc = lod_sub_object_attr_set(env, next, attr, th);
+ if (rc)
+ GOTO(out, rc);
+ }
+
+ rc = lod_generate_and_set_lovea(env, lo, th);
+ EXIT;
+out:
+ if (rc)
+ lod_object_free_striping(env, lo);
+ return rc;
+}
+
+/**
* Implementation of dt_object_operations::do_xattr_set.
*
* Sets specified extended attribute on the object. Three types of EAs are
th);
RETURN(rc);
} else if (S_ISREG(dt->do_lu.lo_header->loh_attr) &&
- !strcmp(name, XATTR_NAME_LOV)) {
+ (!strcmp(name, XATTR_NAME_LOV) ||
+ !strncmp(name, XATTR_LUSTRE_LOV,
+ strlen(XATTR_LUSTRE_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()
* and does not need creating each stripes. */
rc = lod_sub_object_xattr_set(env, next, buf, name,
fl, th);
+ } else if (strcmp(name, XATTR_LUSTRE_LOV".del") == 0) {
+ /* delete component(s) */
+ LASSERT(lod_dt_obj(dt)->ldo_comp_cached);
+ rc = lod_layout_del(env, dt, th);
} else {
+ /*
+ * When 'name' is XATTR_LUSTRE_LOV or XATTR_NAME_LOV,
+ * it's going to create create file with specified
+ * component(s), the striping must have not being
+ * cached in this case;
+ *
+ * Otherwise, it's going to add/change component(s) to
+ * an existing file, the striping must have been cached
+ * in this case.
+ */
+ LASSERT(equi(!strcmp(name, XATTR_LUSTRE_LOV) ||
+ !strcmp(name, XATTR_NAME_LOV),
+ !lod_dt_obj(dt)->ldo_comp_cached));
+
rc = lod_striping_create(env, dt, NULL, NULL, th);
}
RETURN(rc);
if (rc != 0)
RETURN(rc);
- if (lo->ldo_stripenr == 0)
+ if (lo->ldo_dir_stripenr == 0)
RETURN(0);
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
LASSERT(lo->ldo_stripe[i]);
rc = lod_sub_object_declare_xattr_del(env, lo->ldo_stripe[i],
name, th);
if (rc != 0 || !S_ISDIR(dt->do_lu.lo_header->loh_attr))
RETURN(rc);
- if (lo->ldo_stripenr == 0)
+ if (lo->ldo_dir_stripenr == 0)
RETURN(0);
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
LASSERT(lo->ldo_stripe[i]);
rc = lod_sub_object_xattr_del(env, lo->ldo_stripe[i], name, th);
struct lod_thread_info *info = lod_env_info(env);
struct lov_user_md_v1 *v1 = NULL;
struct lov_user_md_v3 *v3 = NULL;
- int rc;
+ struct lov_comp_md_v1 *comp_v1 = NULL;
+ __u16 comp_cnt;
+ bool composite;
+ int rc, i;
+ ENTRY;
+
+ lds->lds_def_striping_set = 0;
rc = lod_get_lov_ea(env, lo);
if (rc < 0)
- return rc;
+ RETURN(rc);
if (rc < (typeof(rc))sizeof(struct lov_user_md))
- return 0;
+ RETURN(0);
v1 = info->lti_ea_store;
if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
} else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
v3 = (struct lov_user_md_v3 *)v1;
lustre_swab_lov_user_md_v3(v3);
+ } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_COMP_V1)) {
+ comp_v1 = (struct lov_comp_md_v1 *)v1;
+ lustre_swab_lov_comp_md_v1(comp_v1);
}
- if (v1->lmm_magic != LOV_MAGIC_V3 && v1->lmm_magic != LOV_MAGIC_V1)
- return 0;
+ if (v1->lmm_magic != LOV_MAGIC_V3 && v1->lmm_magic != LOV_MAGIC_V1 &&
+ v1->lmm_magic != LOV_MAGIC_COMP_V1)
+ RETURN(-ENOTSUPP);
- if (v1->lmm_pattern != LOV_PATTERN_RAID0 && v1->lmm_pattern != 0)
- return 0;
+ if (v1->lmm_magic == LOV_MAGIC_COMP_V1) {
+ comp_v1 = (struct lov_comp_md_v1 *)v1;
+ comp_cnt = comp_v1->lcm_entry_count;
+ if (comp_cnt == 0)
+ RETURN(-EINVAL);
+ composite = true;
+ } else {
+ comp_cnt = 1;
+ composite = false;
+ }
- lds->lds_def_stripenr = v1->lmm_stripe_count;
- lds->lds_def_stripe_size = v1->lmm_stripe_size;
- lds->lds_def_stripe_offset = v1->lmm_stripe_offset;
- lds->lds_def_striping_set = 1;
- if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
- v3 = (struct lov_user_md_v3 *)v1;
- if (v3->lmm_pool_name[0] != '\0')
- strlcpy(lds->lds_def_pool, v3->lmm_pool_name,
- sizeof(lds->lds_def_pool));
+ /* realloc default comp entries if necessary */
+ rc = lod_def_striping_comp_resize(lds, comp_cnt);
+ if (rc < 0)
+ RETURN(rc);
+
+ lds->lds_def_comp_cnt = comp_cnt;
+ lds->lds_def_striping_is_composite = composite ? 1 : 0;
+
+ for (i = 0; i < comp_cnt; i++) {
+ struct lod_layout_component *lod_comp;
+ struct lu_extent *ext;
+ char *pool;
+
+ lod_comp = &lds->lds_def_comp_entries[i];
+ /*
+ * reset lod_comp values, llc_stripes is always NULL in
+ * the default striping template, llc_pool will be reset
+ * later below.
+ */
+ memset(lod_comp, 0, offsetof(typeof(*lod_comp), llc_pool));
+
+ if (composite) {
+ v1 = (struct lov_user_md *)((char *)comp_v1 +
+ comp_v1->lcm_entries[i].lcme_offset);
+ ext = &comp_v1->lcm_entries[i].lcme_extent;
+ lod_comp->llc_extent = *ext;
+ }
+
+ if (v1->lmm_pattern != LOV_PATTERN_RAID0 &&
+ v1->lmm_pattern != 0) {
+ lod_free_def_comp_entries(lds);
+ RETURN(-EINVAL);
+ }
+
+ CDEBUG(D_LAYOUT, DFID" stripe_count=%d stripe_size=%d "
+ "stripe_offset=%d\n",
+ PFID(lu_object_fid(&lo->ldo_obj.do_lu)),
+ (int)v1->lmm_stripe_count, (int)v1->lmm_stripe_size,
+ (int)v1->lmm_stripe_offset);
+
+ lod_comp->llc_stripenr = v1->lmm_stripe_count;
+ lod_comp->llc_stripe_size = v1->lmm_stripe_size;
+ lod_comp->llc_stripe_offset = v1->lmm_stripe_offset;
+
+ pool = NULL;
+ if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
+ /* XXX: sanity check here */
+ v3 = (struct lov_user_md_v3 *) v1;
+ if (v3->lmm_pool_name[0] != '\0')
+ pool = v3->lmm_pool_name;
+ }
+ lod_set_def_pool(lds, i, pool);
}
- return 0;
+ lds->lds_def_striping_set = 1;
+ RETURN(rc);
}
/**
struct lod_thread_info *info = lod_env_info(env);
struct lmv_user_md_v1 *v1 = NULL;
int rc;
+ ENTRY;
+ lds->lds_dir_def_striping_set = 0;
rc = lod_get_default_lmv_ea(env, lo);
if (rc < 0)
- return rc;
+ RETURN(rc);
if (rc < (typeof(rc))sizeof(struct lmv_user_md))
- return 0;
+ RETURN(0);
v1 = info->lti_ea_store;
lds->lds_dir_def_hash_type = le32_to_cpu(v1->lum_hash_type);
lds->lds_dir_def_striping_set = 1;
- return 0;
+ RETURN(0);
}
/**
struct lod_object *lo,
struct lod_default_striping *lds)
{
- int rc;
+ int rc, rc1;
rc = lod_get_default_lov_striping(env, lo, lds);
- if (rc == 0)
- rc = lod_get_default_lmv_striping(env, lo, lds);
+ rc1 = lod_get_default_lmv_striping(env, lo, lds);
+ if (rc == 0 && rc1 < 0)
+ rc = rc1;
+
return rc;
}
const struct lod_default_striping *lds,
umode_t mode)
{
+ struct lod_device *d = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
+ struct lov_desc *desc = &d->lod_desc;
+ int i, rc;
+
if (lds->lds_def_striping_set && S_ISREG(mode)) {
- if (lo->ldo_stripenr == 0)
- lo->ldo_stripenr = lds->lds_def_stripenr;
- if (lo->ldo_stripe_size == 0)
- lo->ldo_stripe_size = lds->lds_def_stripe_size;
- if (lo->ldo_stripe_offset == LOV_OFFSET_DEFAULT)
- lo->ldo_stripe_offset = lds->lds_def_stripe_offset;
- if (lo->ldo_pool == NULL && lds->lds_def_pool[0] != '\0')
- lod_object_set_pool(lo, lds->lds_def_pool);
-
- CDEBUG(D_INFO, "striping from default: count %hu, size %u, "
- "offset %d, pool %s\n",
- lo->ldo_stripenr, lo->ldo_stripe_size,
- (int)lo->ldo_stripe_offset, lo->ldo_pool ?: "");
+ rc = lod_alloc_comp_entries(lo, lds->lds_def_comp_cnt);
+ if (rc != 0)
+ return;
+
+ lo->ldo_is_composite = lds->lds_def_striping_is_composite;
+
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ struct lod_layout_component *obj_comp =
+ &lo->ldo_comp_entries[i];
+ struct lod_layout_component *def_comp =
+ &lds->lds_def_comp_entries[i];
+
+ CDEBUG(D_LAYOUT, "Inherite from default: size:%hu "
+ "nr:%u offset:%u %s\n",
+ def_comp->llc_stripe_size,
+ def_comp->llc_stripenr,
+ def_comp->llc_stripe_offset,
+ def_comp->llc_pool ?: "");
+
+ *obj_comp = *def_comp;
+ if (def_comp->llc_pool != NULL) {
+ /* pointer was copied from def_comp */
+ obj_comp->llc_pool = NULL;
+ lod_obj_set_pool(lo, i, def_comp->llc_pool);
+ }
+
+ /*
+ * Don't initialize these fields for plain layout
+ * (v1/v3) here, they are inherited in the order of
+ * 'parent' -> 'fs default (root)' -> 'global default
+ * values for stripe_count & stripe_size'.
+ *
+ * see lod_ah_init().
+ */
+ if (!lo->ldo_is_composite)
+ continue;
+
+ if (obj_comp->llc_stripenr <= 0)
+ obj_comp->llc_stripenr =
+ desc->ld_default_stripe_count;
+ if (obj_comp->llc_stripe_size <= 0)
+ obj_comp->llc_stripe_size =
+ desc->ld_default_stripe_size;
+ }
} else if (lds->lds_dir_def_striping_set && S_ISDIR(mode)) {
- if (lo->ldo_stripenr == 0)
- lo->ldo_stripenr = lds->lds_dir_def_stripenr;
+ if (lo->ldo_dir_stripenr == 0)
+ lo->ldo_dir_stripenr = lds->lds_dir_def_stripenr;
if (lo->ldo_dir_stripe_offset == -1)
lo->ldo_dir_stripe_offset =
lds->lds_dir_def_stripe_offset;
if (lo->ldo_dir_hash_type == 0)
lo->ldo_dir_hash_type = lds->lds_dir_def_hash_type;
- CDEBUG(D_INFO, "striping from default: count %hu, offset %d, "
- "hash_type %u\n",
- lo->ldo_stripenr, (int)lo->ldo_dir_stripe_offset,
- lo->ldo_dir_hash_type);
+ CDEBUG(D_LAYOUT, "striping from default dir: nr:%hu, "
+ "offset:%u, hash_type:%u\n",
+ lo->ldo_dir_stripenr, lo->ldo_dir_stripe_offset,
+ lo->ldo_dir_hash_type);
}
}
+static inline bool lod_need_inherit_more(struct lod_object *lo, bool from_root)
+{
+ struct lod_layout_component *lod_comp;
+
+ if (lo->ldo_comp_cnt == 0)
+ return true;
+
+ if (lo->ldo_is_composite)
+ return false;
+
+ lod_comp = &lo->ldo_comp_entries[0];
+
+ if (lod_comp->llc_stripenr <= 0 ||
+ lod_comp->llc_stripe_size <= 0)
+ return true;
+
+ if (from_root && (lod_comp->llc_pool == NULL ||
+ lod_comp->llc_stripe_offset == LOV_OFFSET_DEFAULT))
+ return true;
+
+ return false;
+}
+
/**
* Implementation of dt_object_operations::do_ah_init.
*
struct lod_object *lp = NULL;
struct lod_object *lc;
struct lov_desc *desc;
+ struct lod_layout_component *lod_comp;
+ int rc;
ENTRY;
LASSERT(child);
nextc = dt_object_child(child);
lc = lod_dt_obj(child);
- LASSERT(lc->ldo_stripenr == 0);
- LASSERT(lc->ldo_stripe == NULL);
+ LASSERT(!lod_obj_is_striped(child));
+ /* default layout template may have been set on the regular file
+ * when this is called from mdd_create_data() */
+ if (S_ISREG(child_mode))
+ lod_free_comp_entries(lc);
if (!dt_object_exists(nextc))
nextc->do_ops->do_ah_init(env, ah, nextp, nextc, child_mode);
/* other default values are 0 */
lc->ldo_dir_stripe_offset = -1;
- memset(lds, 0, sizeof(*lds));
- lod_get_default_striping(env, lp, lds);
+ /* get default striping from parent object */
+ if (likely(lp != NULL))
+ lod_get_default_striping(env, lp, lds);
- /* inherit parent default striping */
+ /* set child default striping info, default value is NULL */
if (lds->lds_def_striping_set || lds->lds_dir_def_striping_set)
lc->ldo_def_striping = lds;
lod_verify_md_striping(d, ah->dah_eadata) == 0) {
const struct lmv_user_md_v1 *lum1 = ah->dah_eadata;
- lc->ldo_stripenr = le32_to_cpu(lum1->lum_stripe_count);
+ lc->ldo_dir_stripenr =
+ le32_to_cpu(lum1->lum_stripe_count);
lc->ldo_dir_stripe_offset =
- le32_to_cpu(lum1->lum_stripe_offset);
+ le32_to_cpu(lum1->lum_stripe_offset);
lc->ldo_dir_hash_type =
- le32_to_cpu(lum1->lum_hash_type);
+ le32_to_cpu(lum1->lum_hash_type);
CDEBUG(D_INFO, "set dir stripe: count %hu, offset %d, "
"hash_type %u\n",
- lc->ldo_stripenr,
+ lc->ldo_dir_stripenr,
(int)lc->ldo_dir_stripe_offset,
lc->ldo_dir_hash_type);
} else {
+ /* transfer defaults LMV to new directory */
lod_striping_from_default(lc, lds, child_mode);
}
/* shrink the stripe_count to the avaible MDT count */
- if (lc->ldo_stripenr > d->lod_remote_mdt_count + 1 &&
+ if (lc->ldo_dir_stripenr > d->lod_remote_mdt_count + 1 &&
!OBD_FAIL_CHECK(OBD_FAIL_LARGE_STRIPE))
- lc->ldo_stripenr = d->lod_remote_mdt_count + 1;
+ lc->ldo_dir_stripenr = d->lod_remote_mdt_count + 1;
/* Directory will be striped only if stripe_count > 1, if
* stripe_count == 1, let's reset stripenr = 0 to avoid
* create single master stripe and also help to unify the
* stripe handling of directories and files */
- if (lc->ldo_stripenr == 1)
- lc->ldo_stripenr = 0;
+ if (lc->ldo_dir_stripenr == 1)
+ lc->ldo_dir_stripenr = 0;
CDEBUG(D_INFO, "final dir stripe [%hu %d %u]\n",
- lc->ldo_stripenr, (int)lc->ldo_dir_stripe_offset,
+ lc->ldo_dir_stripenr, (int)lc->ldo_dir_stripe_offset,
lc->ldo_dir_hash_type);
RETURN_EXIT;
}
- /*
- * if object is going to be striped over OSTs, transfer default
- * striping information to the child, so that we can use it
- * during declaration and creation
- */
+ /* child object regular file*/
+
if (!lod_object_will_be_striped(S_ISREG(child_mode),
lu_object_fid(&child->do_lu)))
RETURN_EXIT;
- /* other default values are 0 */
- lc->ldo_stripe_offset = LOV_OFFSET_DEFAULT;
-
- /* striping from parent default */
- if (likely(parent)) {
- memset(lds, 0, sizeof(*lds));
- lod_get_default_lov_striping(env, lp, lds);
- lod_striping_from_default(lc, lds, child_mode);
+ /* If object is going to be striped over OSTs, transfer default
+ * striping information to the child, so that we can use it
+ * during declaration and creation.
+ *
+ * Try from the parent first.
+ */
+ if (likely(lp != NULL)) {
+ rc = lod_get_default_lov_striping(env, lp, lds);
+ if (rc == 0)
+ lod_striping_from_default(lc, lds, child_mode);
}
+ /* Initialize lod_device::lod_md_root object reference */
if (d->lod_md_root == NULL) {
struct dt_object *root;
struct lod_object *lroot;
}
}
- /* if parent doesn't provide all defaults, striping from fs default */
- if (d->lod_md_root != NULL &&
- (lc->ldo_stripenr == 0 ||
- lc->ldo_stripe_size == 0 ||
- lc->ldo_stripe_offset == LOV_OFFSET_DEFAULT ||
- lc->ldo_pool == NULL)) {
- memset(lds, 0, sizeof(*lds));
- lod_get_default_lov_striping(env, d->lod_md_root, lds);
- lod_striping_from_default(lc, lds, child_mode);
+ /* try inherit layout from the root object (fs default) when:
+ * - parent does not have default layout; or
+ * - parent has plain(v1/v3) default layout, and some attributes
+ * are not specified in the default layout;
+ */
+ if (d->lod_md_root != NULL && lod_need_inherit_more(lc, true)) {
+ rc = lod_get_default_lov_striping(env, d->lod_md_root, lds);
+ if (rc)
+ goto out;
+ if (lc->ldo_comp_cnt == 0) {
+ lod_striping_from_default(lc, lds, child_mode);
+ } else if (!lds->lds_def_striping_is_composite) {
+ struct lod_layout_component *def_comp;
+
+ LASSERT(!lc->ldo_is_composite);
+ lod_comp = &lc->ldo_comp_entries[0];
+ def_comp = &lds->lds_def_comp_entries[0];
+
+ if (lod_comp->llc_stripenr <= 0)
+ lod_comp->llc_stripenr = def_comp->llc_stripenr;
+ if (lod_comp->llc_stripe_size <= 0)
+ lod_comp->llc_stripe_size =
+ def_comp->llc_stripe_size;
+ if (lod_comp->llc_stripe_offset == LOV_OFFSET_DEFAULT)
+ lod_comp->llc_stripe_offset =
+ def_comp->llc_stripe_offset;
+ if (lod_comp->llc_pool == NULL)
+ lod_obj_set_pool(lc, 0, def_comp->llc_pool);
+ }
}
-
+out:
/*
* fs default striping may not be explicitly set, or historically set
- * in config log, check striping sanity here and fix to sane values.
+ * in config log, use them.
*/
- desc = &d->lod_desc;
- if (lc->ldo_stripenr == 0)
- lc->ldo_stripenr = desc->ld_default_stripe_count;
- if (lc->ldo_stripe_size == 0)
- lc->ldo_stripe_size = desc->ld_default_stripe_size;
-
- CDEBUG(D_INFO, "final striping [%hu %u %d %s]\n",
- lc->ldo_stripenr, lc->ldo_stripe_size,
- (int)lc->ldo_stripe_offset, lc->ldo_pool ?: "");
+ if (lod_need_inherit_more(lc, false)) {
+
+ if (lc->ldo_comp_cnt == 0) {
+ rc = lod_alloc_comp_entries(lc, 1);
+ if (rc)
+ /* fail to allocate memory, will create a
+ * non-striped file. */
+ RETURN_EXIT;
+ lc->ldo_is_composite = 0;
+ lod_comp = &lc->ldo_comp_entries[0];
+ lod_comp->llc_stripe_offset = LOV_OFFSET_DEFAULT;
+ }
+ LASSERT(!lc->ldo_is_composite);
+ lod_comp = &lc->ldo_comp_entries[0];
+ desc = &d->lod_desc;
+ if (lod_comp->llc_stripenr <= 0)
+ lod_comp->llc_stripenr = desc->ld_default_stripe_count;
+ if (lod_comp->llc_stripe_size <= 0)
+ lod_comp->llc_stripe_size =
+ desc->ld_default_stripe_size;
+ }
+
EXIT;
}
static int lod_declare_init_size(const struct lu_env *env,
struct dt_object *dt, struct thandle *th)
{
- struct dt_object *next = dt_object_child(dt);
- struct lod_object *lo = lod_dt_obj(dt);
- struct lu_attr *attr = &lod_env_info(env)->lti_attr;
- uint64_t size, offs;
- int rc, stripe;
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct dt_object **objects = NULL;
+ struct lu_attr *attr = &lod_env_info(env)->lti_attr;
+ uint64_t size, offs;
+ int i, rc, stripe, stripenr = 0, stripe_size = 0;
ENTRY;
- /* XXX: we support the simplest (RAID0) striping so far */
- LASSERT(lo->ldo_stripe || lo->ldo_stripenr == 0);
- LASSERT(lo->ldo_stripe_size > 0);
-
- if (lo->ldo_stripenr == 0)
+ if (!lod_obj_is_striped(dt))
RETURN(0);
rc = dt_attr_get(env, next, attr);
if (size == 0)
RETURN(0);
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ struct lod_layout_component *lod_comp;
+ struct lu_extent *extent;
+
+ lod_comp = &lo->ldo_comp_entries[i];
+
+ if (lod_comp->llc_stripe == NULL)
+ continue;
+
+ extent = &lod_comp->llc_extent;
+ if (!lo->ldo_is_composite ||
+ (size >= extent->e_start && size < extent->e_end)) {
+ objects = lod_comp->llc_stripe;
+ stripenr = lod_comp->llc_stripenr;
+ stripe_size = lod_comp->llc_stripe_size;
+ break;
+ }
+ }
+
+ if (stripenr == 0)
+ RETURN(0);
+
+ LASSERT(objects != NULL && stripe_size != 0);
+
/* ll_do_div64(a, b) returns a % b, and a = a / b */
- ll_do_div64(size, (__u64) lo->ldo_stripe_size);
- stripe = ll_do_div64(size, (__u64) lo->ldo_stripenr);
+ ll_do_div64(size, (__u64)stripe_size);
+ stripe = ll_do_div64(size, (__u64)stripenr);
+ LASSERT(objects[stripe] != NULL);
- size = size * lo->ldo_stripe_size;
+ size = size * stripe_size;
offs = attr->la_size;
- size += ll_do_div64(offs, lo->ldo_stripe_size);
+ size += ll_do_div64(offs, stripe_size);
attr->la_valid = LA_SIZE;
attr->la_size = size;
- rc = lod_sub_object_declare_attr_set(env, lo->ldo_stripe[stripe], attr,
- th);
+ rc = lod_sub_object_declare_attr_set(env, objects[stripe], attr, th);
RETURN(rc);
}
if (!dt_object_remote(next)) {
/* choose OST and generate appropriate objects */
- rc = lod_qos_prep_create(env, lo, attr, lovea, th);
+ rc = lod_prepare_create(env, lo, attr, lovea, th);
if (rc)
GOTO(out, rc);
/*
* declare storage for striping data
*/
- info->lti_buf.lb_len = lov_mds_md_size(lo->ldo_stripenr,
- lo->ldo_pool ? LOV_MAGIC_V3 : LOV_MAGIC_V1);
+ info->lti_buf.lb_len = lod_comp_md_size(lo, false);
} else {
/* LOD can not choose OST objects for remote objects, i.e.
* stripes must be ready before that. Right now, it can only
/* XXX: all tricky interactions with ->ah_make_hint() decided
* to use striping, then ->declare_create() behaving differently
* should be cleaned */
- if (dof->u.dof_reg.striped == 0)
- lo->ldo_stripenr = 0;
- if (lo->ldo_stripenr > 0)
+ if (dof->u.dof_reg.striped != 0)
rc = lod_declare_striped_object(env, dt, attr,
NULL, th);
} else if (dof->dof_type == DFT_DIR) {
rc = lod_declare_dir_striping_create(env, dt, attr, dof, th);
}
out:
+ /* failed to create striping or to set initial size, let's reset
+ * config so that others don't get confused */
+ if (rc)
+ lod_object_free_striping(env, lo);
RETURN(rc);
}
struct lu_attr *attr, struct dt_object_format *dof,
struct thandle *th)
{
- struct lod_object *lo = lod_dt_obj(dt);
- int rc = 0, i;
+ struct lod_layout_component *lod_comp;
+ struct lod_object *lo = lod_dt_obj(dt);
+ int rc = 0, i, j;
ENTRY;
+ LASSERT(lo->ldo_comp_cnt != 0 && lo->ldo_comp_entries != NULL);
+
/* create all underlying objects */
- for (i = 0; i < lo->ldo_stripenr; i++) {
- LASSERT(lo->ldo_stripe[i]);
- rc = lod_sub_object_create(env, lo->ldo_stripe[i], attr, NULL,
- dof, th);
- if (rc)
- break;
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ lod_comp = &lo->ldo_comp_entries[i];
+
+ if (lod_comp->llc_flags & LCME_FL_INIT)
+ continue;
+
+ lod_comp->llc_flags |= LCME_FL_INIT;
+
+ if (lod_comp->llc_stripe == NULL)
+ continue;
+
+ LASSERT(lod_comp->llc_stripenr > 0);
+ for (j = 0; j < lod_comp->llc_stripenr; j++) {
+ struct dt_object *object = lod_comp->llc_stripe[j];
+ LASSERT(object != NULL);
+ rc = lod_sub_object_create(env, object, attr, NULL,
+ dof, th);
+ if (rc)
+ break;
+ }
}
if (rc == 0)
rc = lod_generate_and_set_lovea(env, lo, th);
+ if (rc == 0)
+ lo->ldo_comp_cached = 1;
+ else
+ lod_object_free_striping(env, lo);
+
RETURN(rc);
}
struct dt_allocation_hint *hint,
struct dt_object_format *dof, struct thandle *th)
{
- struct lod_object *lo = lod_dt_obj(dt);
int rc;
ENTRY;
RETURN(rc);
if (S_ISREG(dt->do_lu.lo_header->loh_attr) &&
- lo->ldo_stripe && dof->u.dof_reg.striped != 0)
+ lod_obj_is_striped(dt) && dof->u.dof_reg.striped != 0) {
+ LASSERT(lod_dt_obj(dt)->ldo_comp_cached == 0);
rc = lod_striping_create(env, dt, attr, dof, th);
+ }
RETURN(rc);
}
+static inline int
+lod_obj_stripe_destroy_cb(const struct lu_env *env, struct lod_object *lo,
+ struct dt_object *dt, struct thandle *th,
+ int stripe_idx, struct lod_obj_stripe_cb_data *data)
+{
+ if (data->locd_declare)
+ return lod_sub_object_declare_destroy(env, dt, th);
+ else if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SPEOBJ) ||
+ stripe_idx == cfs_fail_val)
+ return lod_sub_object_destroy(env, dt, th);
+ else
+ return 0;
+}
+
/**
* Implementation of dt_object_operations::do_declare_destroy.
*
if (rc != 0)
RETURN(rc);
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
rc = lod_sub_object_declare_ref_del(env, next, th);
if (rc != 0)
RETURN(rc);
OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
RETURN(0);
+ if (!lod_obj_is_striped(dt))
+ RETURN(0);
+
/* declare destroy all striped objects */
- for (i = 0; i < lo->ldo_stripenr; i++) {
- if (lo->ldo_stripe[i] == NULL)
- continue;
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
+ if (lo->ldo_stripe[i] == NULL)
+ continue;
- if (S_ISDIR(dt->do_lu.lo_header->loh_attr))
rc = lod_sub_object_declare_ref_del(env,
lo->ldo_stripe[i], th);
- rc = lod_sub_object_declare_destroy(env, lo->ldo_stripe[i],
- th);
- if (rc != 0)
- break;
+ rc = lod_sub_object_declare_destroy(env,
+ lo->ldo_stripe[i], th);
+ if (rc != 0)
+ break;
+ }
+ } else {
+ struct lod_obj_stripe_cb_data data;
+
+ data.locd_declare = true;
+ rc = lod_obj_for_each_stripe(env, lo, th,
+ lod_obj_stripe_destroy_cb, &data);
}
RETURN(rc);
if (rc != 0)
RETURN(rc);
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
rc = lod_sub_object_ref_del(env, next, th);
if (rc != 0)
RETURN(rc);
OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
RETURN(0);
+ if (!lod_obj_is_striped(dt))
+ RETURN(0);
+
/* destroy all striped objects */
- for (i = 0; i < lo->ldo_stripenr; i++) {
- if (likely(lo->ldo_stripe[i] != NULL) &&
- (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SPEOBJ) ||
- i == cfs_fail_val)) {
- if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
+ if (lo->ldo_stripe[i] == NULL)
+ continue;
+ if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_SPEOBJ) ||
+ i == cfs_fail_val) {
dt_write_lock(env, lo->ldo_stripe[i],
MOR_TGT_CHILD);
rc = lod_sub_object_ref_del(env,
dt_write_unlock(env, lo->ldo_stripe[i]);
if (rc != 0)
break;
- }
- rc = lod_sub_object_destroy(env, lo->ldo_stripe[i], th);
- if (rc != 0)
- break;
+ rc = lod_sub_object_destroy(env,
+ lo->ldo_stripe[i], th);
+ if (rc != 0)
+ break;
+ }
}
+ } else {
+ struct lod_obj_stripe_cb_data data;
+
+ data.locd_declare = false;
+ rc = lod_obj_for_each_stripe(env, lo, th,
+ lod_obj_stripe_destroy_cb, &data);
}
RETURN(rc);
RETURN(0);
LASSERT(S_ISDIR(dt->do_lu.lo_header->loh_attr));
- LASSERT(lo->ldo_stripenr > 1);
+ LASSERT(lo->ldo_dir_stripenr > 1);
/* Note: for remote lock for single stripe dir, MDT will cancel
* the lock by lockh directly */
LASSERT(!dt_object_remote(dt_object_child(dt)));
GOTO(out, rc);
/* No stripes */
- if (lo->ldo_stripenr <= 1) {
+ if (lo->ldo_dir_stripenr <= 1) {
/*
* NB, ei_cbdata stores pointer to slave locks, if no locks
* taken, make sure it's set to NULL, otherwise MDT will try to
GOTO(out, rc = 0);
}
- slave_locks_size = sizeof(*slave_locks) + lo->ldo_stripenr *
+ slave_locks_size = sizeof(*slave_locks) + lo->ldo_dir_stripenr *
sizeof(slave_locks->handles[0]);
/* Freed in lod_object_unlock */
OBD_ALLOC(slave_locks, slave_locks_size);
if (slave_locks == NULL)
GOTO(out, rc = -ENOMEM);
- slave_locks->count = lo->ldo_stripenr;
+ slave_locks->count = lo->ldo_dir_stripenr;
/* striped directory lock */
- for (i = 1; i < lo->ldo_stripenr; i++) {
+ for (i = 1; i < lo->ldo_dir_stripenr; i++) {
struct lustre_handle lockh;
struct ldlm_res_id *res_id;
*/
void lod_object_free_striping(const struct lu_env *env, struct lod_object *lo)
{
- int len;
+ struct lod_layout_component *lod_comp;
+ int i, j;
if (lo->ldo_stripe != NULL) {
- int i;
-
- LASSERT(lo->ldo_stripes_allocated > 0);
+ LASSERT(lo->ldo_comp_entries == NULL);
+ LASSERT(lo->ldo_dir_stripes_allocated > 0);
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lo->ldo_dir_stripenr; i++) {
if (lo->ldo_stripe[i])
dt_object_put(env, lo->ldo_stripe[i]);
}
- len = sizeof(struct dt_object *) * lo->ldo_stripes_allocated;
- OBD_FREE(lo->ldo_stripe, len);
+ j = sizeof(struct dt_object *) * lo->ldo_dir_stripes_allocated;
+ OBD_FREE(lo->ldo_stripe, j);
lo->ldo_stripe = NULL;
- lo->ldo_stripes_allocated = 0;
+ lo->ldo_dir_stripes_allocated = 0;
+ lo->ldo_dir_stripenr = 0;
+ } else if (lo->ldo_comp_entries != NULL) {
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ /* free lod_layout_component::llc_stripe array */
+ lod_comp = &lo->ldo_comp_entries[i];
+
+ if (lod_comp->llc_stripe == NULL)
+ continue;
+ LASSERT(lod_comp->llc_stripes_allocated != 0);
+ for (j = 0; j < lod_comp->llc_stripes_allocated; j++) {
+ if (lod_comp->llc_stripe[j] != NULL)
+ lu_object_put(env,
+ &lod_comp->llc_stripe[j]->do_lu);
+ }
+ OBD_FREE(lod_comp->llc_stripe,
+ sizeof(struct dt_object *) *
+ lod_comp->llc_stripes_allocated);
+ lod_comp->llc_stripe = NULL;
+ lod_comp->llc_stripes_allocated = 0;
+ }
+ lod_free_comp_entries(lo);
+ lo->ldo_comp_cached = 0;
}
- lo->ldo_stripenr = 0;
}
/**
{
struct lod_object *lo = lu2lod_obj(o);
- lod_object_set_pool(lo, NULL);
/* release all underlying object pinned */
lod_object_free_striping(env, lo);
lu_object_fini(o);
return 0;
}
+/**
+ * Check is OST used in a composite layout
+ *
+ * \param[in] inuse all inuse ost indexs
+ * \param[in] ost OST target index to check
+ *
+ * \retval 0 not used
+ * \retval 1 used
+ */
+static inline int lod_comp_is_ost_used(struct ost_pool *inuse, int ost)
+{
+ __u32 j;
+ LASSERT(inuse != NULL);
+
+ if (inuse->op_size == 0)
+ return 0;
+
+ LASSERT(inuse->op_count <= inuse->op_size);
+ for (j = 0; j < inuse->op_count; j++) {
+ if (inuse->op_array[j] == ost)
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * Mark the given target as used for a composite layout
+ *
+ * \param[in] inuse inuse ost index array
+ * \param[in] idx index in the array
+ */
+static inline void lod_comp_ost_in_use(struct ost_pool *inuse, int ost)
+{
+ LASSERT(inuse != NULL);
+ if (inuse->op_size && !lod_comp_is_ost_used(inuse, ost)) {
+ LASSERT(inuse->op_count < inuse->op_size);
+ inuse->op_array[inuse->op_count] = ost;
+ inuse->op_count++;
+ }
+}
+
static int lod_check_and_reserve_ost(const struct lu_env *env,
struct lod_device *m,
struct obd_statfs *sfs, __u32 ost_idx,
__u32 speed, __u32 *s_idx,
struct dt_object **stripe,
- struct thandle *th)
+ struct thandle *th,
+ struct ost_pool *inuse)
{
struct dt_object *o;
__u32 stripe_idx = *s_idx;
}
/*
+ * try not allocate on OST which has been used by other
+ * component
+ */
+ if (speed == 0 && lod_comp_is_ost_used(inuse, ost_idx)) {
+ QOS_DEBUG("#%d: used by other component\n", ost_idx);
+ goto out_return;
+ }
+
+ /*
* do not put >1 objects on a single OST
*/
if (lod_qos_is_ost_used(env, ost_idx, stripe_idx))
* We've successfully declared (reserved) an object
*/
lod_qos_ost_in_use(env, stripe_idx, ost_idx);
+ lod_comp_ost_in_use(inuse, ost_idx);
stripe[stripe_idx] = o;
OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_LOV_CREATE_RACE, 2);
stripe_idx++;
* \param[out] stripe striping created
* \param[in] flags allocation flags (0 or LOV_USES_DEFAULT_STRIPE)
* \param[in] th transaction handle
+ * \param[in] comp_idx index of ldo_comp_entries
+ * \param[in|out] inuse array of inuse ost index
*
* \retval 0 on success
* \retval -ENOSPC if not enough OSTs are found
*/
static int lod_alloc_rr(const struct lu_env *env, struct lod_object *lo,
struct dt_object **stripe, int flags,
- struct thandle *th)
+ struct thandle *th, int comp_idx,
+ struct ost_pool *inuse)
{
+ struct lod_layout_component *lod_comp;
struct lod_device *m = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
struct obd_statfs *sfs = &lod_env_info(env)->lti_osfs;
struct pool_desc *pool = NULL;
struct ost_pool *osts;
struct lod_qos_rr *lqr;
- unsigned int i, array_idx;
- int rc;
- __u32 ost_start_idx_temp;
- int speed = 0;
- int ost_connecting = 0;
- __u32 stripe_idx = 0;
- __u32 stripe_cnt = lo->ldo_stripenr;
- __u32 stripe_cnt_min = min_stripe_count(stripe_cnt, flags);
- __u32 ost_idx;
+ unsigned int i, array_idx;
+ __u32 ost_start_idx_temp;
+ __u32 stripe_idx = 0;
+ __u32 stripe_cnt, stripe_cnt_min, ost_idx;
+ int rc, speed = 0, ost_connecting = 0;
ENTRY;
- if (lo->ldo_pool)
- pool = lod_find_pool(m, lo->ldo_pool);
+ LASSERT(lo->ldo_comp_cnt > comp_idx && lo->ldo_comp_entries != NULL);
+ lod_comp = &lo->ldo_comp_entries[comp_idx];
+ stripe_cnt = lod_comp->llc_stripenr;
+ stripe_cnt_min = min_stripe_count(stripe_cnt, flags);
+
+ if (lod_comp->llc_pool != NULL)
+ pool = lod_find_pool(m, lod_comp->llc_pool);
if (pool != NULL) {
down_read(&pool_tgt_rw_sem(pool));
if (rc)
GOTO(out, rc);
- rc = lod_qos_ost_in_use_clear(env, lo->ldo_stripenr);
+ rc = lod_qos_ost_in_use_clear(env, stripe_cnt);
if (rc)
GOTO(out, rc);
QOS_DEBUG("pool '%s' want %d startidx %d startcnt %d offset %d "
"active %d count %d\n",
- lo->ldo_pool ? lo->ldo_pool : "",
+ lod_comp->llc_pool ? lod_comp->llc_pool : "",
stripe_cnt, lqr->lqr_start_idx, lqr->lqr_start_count,
lqr->lqr_offset_idx, osts->op_count, osts->op_count);
- for (i = 0; i < osts->op_count && stripe_idx < lo->ldo_stripenr; i++) {
+ for (i = 0; i < osts->op_count && stripe_idx < stripe_cnt; i++) {
array_idx = (lqr->lqr_start_idx + lqr->lqr_offset_idx) %
osts->op_count;
++lqr->lqr_start_idx;
spin_unlock(&lqr->lqr_alloc);
rc = lod_check_and_reserve_ost(env, m, sfs, ost_idx, speed,
- &stripe_idx, stripe, th);
+ &stripe_idx, stripe, th, inuse);
spin_lock(&lqr->lqr_alloc);
if (rc != 0 && OST_TGT(m, ost_idx)->ltd_connecting)
up_read(&m->lod_qos.lq_rw_sem);
if (stripe_idx) {
- lo->ldo_stripenr = stripe_idx;
+ lod_comp->llc_stripenr = stripe_idx;
/* at least one stripe is allocated */
rc = 0;
} else {
* \param[out] stripe striping created
* \param[in] lum stripe md to specify list of OSTs
* \param[in] th transaction handle
+ * \param[in] comp_idx index of ldo_comp_entries
+ * \param[in|out] inuse array of inuse ost index
*
* \retval 0 on success
* \retval -ENODEV OST index does not exist on file system
*/
static int lod_alloc_ost_list(const struct lu_env *env,
struct lod_object *lo, struct dt_object **stripe,
- struct lov_user_md *lum, struct thandle *th)
+ struct lov_user_md *lum, struct thandle *th,
+ int comp_idx, struct ost_pool *inuse)
{
+ struct lod_layout_component *lod_comp;
struct lod_device *m = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
struct obd_statfs *sfs = &lod_env_info(env)->lti_osfs;
struct dt_object *o;
unsigned int array_idx = 0;
int stripe_count = 0;
int i;
- int rc;
+ int rc = -EINVAL;
ENTRY;
/* for specific OSTs layout */
LASSERT(lum != NULL && lum->lmm_magic == LOV_USER_MAGIC_SPECIFIC);
lustre_print_user_md(D_OTHER, lum, __func__);
- rc = lod_qos_ost_in_use_clear(env, lo->ldo_stripenr);
+ LASSERT(lo->ldo_comp_cnt > comp_idx && lo->ldo_comp_entries != NULL);
+ lod_comp = &lo->ldo_comp_entries[comp_idx];
+
+ rc = lod_qos_ost_in_use_clear(env, lod_comp->llc_stripenr);
if (rc < 0)
RETURN(rc);
v3 = (struct lov_user_md_v3 *)lum;
- for (i = 0; i < lo->ldo_stripenr; i++) {
- if (v3->lmm_objects[i].l_ost_idx == lo->ldo_stripe_offset) {
+ for (i = 0; i < lod_comp->llc_stripenr; i++) {
+ if (v3->lmm_objects[i].l_ost_idx ==
+ lod_comp->llc_stripe_offset) {
array_idx = i;
break;
}
}
- if (i == lo->ldo_stripenr) {
+ if (i == lod_comp->llc_stripenr) {
CDEBUG(D_OTHER,
"%s: start index %d not in the specified list of OSTs\n",
- lod2obd(m)->obd_name, lo->ldo_stripe_offset);
+ lod2obd(m)->obd_name, lod_comp->llc_stripe_offset);
RETURN(-EINVAL);
}
- for (i = 0; i < lo->ldo_stripenr;
- i++, array_idx = (array_idx + 1) % lo->ldo_stripenr) {
+ for (i = 0; i < lod_comp->llc_stripenr;
+ i++, array_idx = (array_idx + 1) % lod_comp->llc_stripenr) {
__u32 ost_idx = v3->lmm_objects[array_idx].l_ost_idx;
if (!cfs_bitmap_check(m->lod_ost_bitmap, ost_idx)) {
* We've successfully declared (reserved) an object
*/
lod_qos_ost_in_use(env, stripe_count, ost_idx);
+ lod_comp_ost_in_use(inuse, ost_idx);
stripe[stripe_count] = o;
stripe_count++;
}
* \param[out] stripe striping created
* \param[in] flags not used
* \param[in] th transaction handle
+ * \param[in] comp_idx index of ldo_comp_entries
+ * \param[in|out]inuse array of inuse ost index
*
* \retval 0 on success
* \retval -ENOSPC if no OST objects are available at all
*/
static int lod_alloc_specific(const struct lu_env *env, struct lod_object *lo,
struct dt_object **stripe, int flags,
- struct thandle *th)
+ struct thandle *th, int comp_idx,
+ struct ost_pool *inuse)
{
+ struct lod_layout_component *lod_comp;
struct lod_device *m = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
struct obd_statfs *sfs = &lod_env_info(env)->lti_osfs;
struct dt_object *o;
struct ost_pool *osts;
ENTRY;
- rc = lod_qos_ost_in_use_clear(env, lo->ldo_stripenr);
+ LASSERT(lo->ldo_comp_cnt > comp_idx && lo->ldo_comp_entries != NULL);
+ lod_comp = &lo->ldo_comp_entries[comp_idx];
+
+ rc = lod_qos_ost_in_use_clear(env, lod_comp->llc_stripenr);
if (rc)
GOTO(out, rc);
- if (lo->ldo_pool)
- pool = lod_find_pool(m, lo->ldo_pool);
+ if (lod_comp->llc_pool != NULL)
+ pool = lod_find_pool(m, lod_comp->llc_pool);
if (pool != NULL) {
down_read(&pool_tgt_rw_sem(pool));
/* search loi_ost_idx in ost array */
array_idx = 0;
for (i = 0; i < ost_count; i++) {
- if (osts->op_array[i] == lo->ldo_stripe_offset) {
+ if (osts->op_array[i] == lod_comp->llc_stripe_offset) {
array_idx = i;
break;
}
}
if (i == ost_count) {
CERROR("Start index %d not found in pool '%s'\n",
- lo->ldo_stripe_offset, lo->ldo_pool ?: "");
+ lod_comp->llc_stripe_offset,
+ lod_comp->llc_pool ? lod_comp->llc_pool : "");
GOTO(out, rc = -EINVAL);
}
if (lod_qos_is_ost_used(env, ost_idx, stripe_num))
continue;
+ /*
+ * try not allocate on the OST used by other component
+ */
+ if (speed == 0 && i != 0 &&
+ lod_comp_is_ost_used(inuse, ost_idx))
+ continue;
+
/* Drop slow OSCs if we can, but not for requested start idx.
*
* This means "if OSC is slow and it is not the requested
* We've successfully declared (reserved) an object
*/
lod_qos_ost_in_use(env, stripe_num, ost_idx);
+ lod_comp_ost_in_use(inuse, ost_idx);
stripe[stripe_num] = o;
stripe_num++;
/* We have enough stripes */
- if (stripe_num == lo->ldo_stripenr)
+ if (stripe_num == lod_comp->llc_stripenr)
GOTO(out, rc = 0);
}
if (speed < 2) {
*/
CERROR("can't lstripe objid "DFID": have %d want %u\n",
PFID(lu_object_fid(lod2lu_obj(lo))), stripe_num,
- lo->ldo_stripenr);
+ lod_comp->llc_stripenr);
rc = stripe_num == 0 ? -ENOSPC : -EFBIG;
out:
if (pool != NULL) {
* \param[out] stripe striping created
* \param[in] flags 0 or LOV_USES_DEFAULT_STRIPE
* \param[in] th transaction handle
+ * \param[in] comp_idx index of ldo_comp_entries
+ * \param[in|out]inuse array of inuse ost index
*
* \retval 0 on success
* \retval -EAGAIN not enough OSTs are found for specified stripe count
*/
static int lod_alloc_qos(const struct lu_env *env, struct lod_object *lo,
struct dt_object **stripe, int flags,
- struct thandle *th)
+ struct thandle *th, int comp_idx,
+ struct ost_pool *inuse)
{
+ struct lod_layout_component *lod_comp;
struct lod_device *lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
struct obd_statfs *sfs = &lod_env_info(env)->lti_osfs;
struct lod_tgt_desc *ost;
struct dt_object *o;
__u64 total_weight = 0;
- __u32 nfound, good_osts;
- __u32 stripe_cnt = lo->ldo_stripenr;
- __u32 stripe_cnt_min;
struct pool_desc *pool = NULL;
struct ost_pool *osts;
unsigned int i;
+ __u32 nfound, good_osts, stripe_cnt, stripe_cnt_min;
int rc = 0;
ENTRY;
+ LASSERT(lo->ldo_comp_cnt > comp_idx && lo->ldo_comp_entries != NULL);
+ lod_comp = &lo->ldo_comp_entries[comp_idx];
+ stripe_cnt = lod_comp->llc_stripenr;
stripe_cnt_min = min_stripe_count(stripe_cnt, flags);
if (stripe_cnt_min < 1)
RETURN(-EINVAL);
- if (lo->ldo_pool)
- pool = lod_find_pool(lod, lo->ldo_pool);
+ if (lod_comp->llc_pool != NULL)
+ pool = lod_find_pool(lod, lod_comp->llc_pool);
if (pool != NULL) {
down_read(&pool_tgt_rw_sem(pool));
if (rc)
GOTO(out, rc);
- rc = lod_qos_ost_in_use_clear(env, lo->ldo_stripenr);
+ rc = lod_qos_ost_in_use_clear(env, lod_comp->llc_stripenr);
if (rc)
GOTO(out, rc);
/*
* do not put >1 objects on a single OST
*/
- if (lod_qos_is_ost_used(env, idx, nfound))
+ if (lod_qos_is_ost_used(env, idx, nfound) ||
+ lod_comp_is_ost_used(inuse, idx))
continue;
lod_qos_ost_in_use(env, nfound, idx);
+ lod_comp_ost_in_use(inuse, idx);
o = lod_qos_declare_object_on(env, lod, idx, th);
if (IS_ERR(o)) {
dt_object_put(env, stripe[i]);
stripe[i] = NULL;
}
+ LASSERTF(nfound <= inuse->op_count,
+ "nfound:%d, op_count:%u\n", nfound, inuse->op_count);
+ inuse->op_count -= nfound;
/* makes sense to rebalance next time */
lod->lod_qos.lq_dirty = 1;
* If the passed one is 0, then the filesystem's default one is used.
*
* \param[in] lod LOD device
- * \param[in] magic the format if striping
+ * \param[in] lo The lod_object
* \param[in] stripe_count count the caller would like to use
*
* \retval the maximum usable stripe count
*/
-static __u16 lod_get_stripecnt(struct lod_device *lod, __u32 magic,
+static __u16 lod_get_stripecnt(struct lod_device *lod, struct lod_object *lo,
__u16 stripe_count)
{
__u32 max_stripes = LOV_MAX_STRIPE_COUNT_OLD;
stripe_count = 1;
/* stripe count is based on whether OSD can handle larger EA sizes */
- if (lod->lod_osd_max_easize > 0)
- max_stripes = lov_mds_md_max_stripe_count(
- lod->lod_osd_max_easize, magic);
+ if (lod->lod_osd_max_easize > 0) {
+ unsigned int easize = lod->lod_osd_max_easize;
+ int i;
+
+ if (lo->ldo_is_composite) {
+ struct lod_layout_component *lod_comp;
+ unsigned int header_sz = sizeof(struct lov_comp_md_v1);
+
+ header_sz += sizeof(struct lov_comp_md_entry_v1) *
+ lo->ldo_comp_cnt;
+ for (i = 0; i < lo->ldo_comp_cnt; i++) {
+ lod_comp = &lo->ldo_comp_entries[i];
+ if (lod_comp->llc_flags & LCME_FL_INIT)
+ header_sz += lov_mds_md_size(
+ lod_comp->llc_stripenr, LOV_MAGIC_V3);
+ }
+ if (easize > header_sz)
+ easize -= header_sz;
+ else
+ easize = 0;
+ }
+
+ max_stripes = lov_mds_md_max_stripe_count(easize, LOV_MAGIC_V3);
+ }
return (stripe_count < max_stripes) ? stripe_count : max_stripes;
}
* \retval 0 on success
* \retval negative negated errno on error
*/
-static int lod_use_defined_striping(const struct lu_env *env,
- struct lod_object *mo,
- const struct lu_buf *buf)
+int lod_use_defined_striping(const struct lu_env *env,
+ struct lod_object *mo,
+ const struct lu_buf *buf)
{
+ struct lod_layout_component *lod_comp;
struct lov_mds_md_v1 *v1 = buf->lb_buf;
struct lov_mds_md_v3 *v3 = buf->lb_buf;
+ struct lov_comp_md_v1 *comp_v1 = NULL;
struct lov_ost_data_v1 *objs;
- __u32 magic;
- int rc = 0;
+ __u32 magic;
+ __u16 comp_cnt;
+ int rc = 0, i;
ENTRY;
- magic = le32_to_cpu(v1->lmm_magic);
- if (magic == LOV_MAGIC_V1_DEF) {
- magic = LOV_MAGIC_V1;
- objs = &v1->lmm_objects[0];
- } else if (magic == LOV_MAGIC_V3_DEF) {
- magic = LOV_MAGIC_V3;
- objs = &v3->lmm_objects[0];
- lod_object_set_pool(mo, v3->lmm_pool_name);
+ magic = le32_to_cpu(v1->lmm_magic) & ~LOV_MAGIC_DEF;
+
+ if (magic != LOV_MAGIC_V1 && magic != LOV_MAGIC_V3 &&
+ magic != LOV_MAGIC_COMP_V1)
+ RETURN(-EINVAL);
+
+ if (magic == LOV_MAGIC_COMP_V1) {
+ comp_v1 = buf->lb_buf;
+ comp_cnt = le16_to_cpu(comp_v1->lcm_entry_count);
+ if (comp_cnt == 0)
+ RETURN(-EINVAL);
+ mo->ldo_is_composite = 1;
} else {
- GOTO(out, rc = -EINVAL);
+ mo->ldo_is_composite = 0;
+ comp_cnt = 1;
}
- mo->ldo_pattern = le32_to_cpu(v1->lmm_pattern);
- mo->ldo_stripe_size = le32_to_cpu(v1->lmm_stripe_size);
- mo->ldo_stripenr = le16_to_cpu(v1->lmm_stripe_count);
- mo->ldo_layout_gen = le16_to_cpu(v1->lmm_layout_gen);
+ rc = lod_alloc_comp_entries(mo, comp_cnt);
+ if (rc)
+ RETURN(rc);
- /* fixup for released file before object initialization */
- if (mo->ldo_pattern & LOV_PATTERN_F_RELEASED) {
- mo->ldo_released_stripenr = mo->ldo_stripenr;
- mo->ldo_stripenr = 0;
- }
+ for (i = 0; i < comp_cnt; i++) {
+ struct lu_extent *ext;
+ char *pool_name;
+ __u32 offs;
+
+ lod_comp = &mo->ldo_comp_entries[i];
+
+ if (mo->ldo_is_composite) {
+ offs = le32_to_cpu(comp_v1->lcm_entries[i].lcme_offset);
+ v1 = (struct lov_mds_md_v1 *)((char *)comp_v1 + offs);
+ magic = le32_to_cpu(v1->lmm_magic);
+
+ ext = &comp_v1->lcm_entries[i].lcme_extent;
+ lod_comp->llc_extent.e_start =
+ le64_to_cpu(ext->e_start);
+ lod_comp->llc_extent.e_end = le64_to_cpu(ext->e_end);
+ lod_comp->llc_flags =
+ le32_to_cpu(comp_v1->lcm_entries[i].lcme_flags);
+ lod_comp->llc_id =
+ le32_to_cpu(comp_v1->lcm_entries[i].lcme_id);
+ if (lod_comp->llc_id == LCME_ID_INVAL)
+ GOTO(out, rc = -EINVAL);
+ }
- LASSERT(buf->lb_len >= lov_mds_md_size(mo->ldo_stripenr, magic));
+ pool_name = NULL;
+ if (magic == LOV_MAGIC_V1) {
+ objs = &v1->lmm_objects[0];
+ } else if (magic == LOV_MAGIC_V3) {
+ objs = &v3->lmm_objects[0];
+ if (v3->lmm_pool_name[0] != '\0')
+ pool_name = v3->lmm_pool_name;
+ } else {
+ CDEBUG(D_LAYOUT, "Invalid magic %x\n", magic);
+ GOTO(out, rc = -EINVAL);
+ }
- if (mo->ldo_stripenr > 0)
- rc = lod_initialize_objects(env, mo, objs);
+ lod_comp->llc_pattern = le32_to_cpu(v1->lmm_pattern);
+ lod_comp->llc_stripe_size = le32_to_cpu(v1->lmm_stripe_size);
+ lod_comp->llc_stripenr = le16_to_cpu(v1->lmm_stripe_count);
+ lod_comp->llc_layout_gen = le16_to_cpu(v1->lmm_layout_gen);
+ lod_obj_set_pool(mo, i, pool_name);
+ if (!(lod_comp->llc_pattern & LOV_PATTERN_F_RELEASED)) {
+ rc = lod_initialize_objects(env, mo, objs, i);
+ if (rc)
+ GOTO(out, rc);
+ }
+ }
out:
+ if (rc)
+ lod_object_free_striping(env, mo);
+
RETURN(rc);
}
struct lod_object *lo,
const struct lu_buf *buf)
{
- struct lod_device *d = lu2lod_dev(lod2lu_obj(lo)->lo_dev);
- struct lov_user_md_v1 *v1 = NULL;
- struct lov_user_md_v3 *v3 = NULL;
- char *pool_name = NULL;
- __u32 magic;
- int rc;
- unsigned int size;
+ struct lod_layout_component *lod_comp;
+ struct lod_device *d = lu2lod_dev(lod2lu_obj(lo)->lo_dev);
+ struct lov_desc *desc = &d->lod_desc;
+ struct lov_user_md_v1 *v1 = NULL;
+ struct lov_user_md_v3 *v3 = NULL;
+ struct lov_comp_md_v1 *comp_v1 = NULL;
+ __u32 magic;
+ __u16 comp_cnt;
+ int i, rc;
ENTRY;
if (buf == NULL || buf->lb_buf == NULL || buf->lb_len == 0)
RETURN(0);
+ rc = lod_verify_striping(d, buf, false, 0);
+ if (rc)
+ RETURN(-EINVAL);
+
+ lod_free_comp_entries(lo);
+
v3 = buf->lb_buf;
v1 = buf->lb_buf;
+ comp_v1 = buf->lb_buf;
magic = v1->lmm_magic;
- if (unlikely(magic == LOV_MAGIC_V1_DEF || magic == LOV_MAGIC_V3_DEF)) {
+ if (unlikely(le32_to_cpu(magic) & LOV_MAGIC_DEF)) {
/* try to use as fully defined striping */
rc = lod_use_defined_striping(env, lo, buf);
RETURN(rc);
magic = v1->lmm_magic;
/* fall through */
case LOV_USER_MAGIC_V1:
- size = sizeof(*v1);
break;
-
case __swab32(LOV_USER_MAGIC_V3):
lustre_swab_lov_user_md_v3(v3);
magic = v3->lmm_magic;
/* fall through */
case LOV_USER_MAGIC_V3:
- size = sizeof(*v3);
- pool_name = v3->lmm_pool_name;
break;
-
case __swab32(LOV_USER_MAGIC_SPECIFIC):
lustre_swab_lov_user_md_v3(v3);
lustre_swab_lov_user_md_objects(v3->lmm_objects,
magic = v3->lmm_magic;
/* fall through */
case LOV_USER_MAGIC_SPECIFIC:
- if (v3->lmm_stripe_offset == LOV_OFFSET_DEFAULT)
- v3->lmm_stripe_offset = v3->lmm_objects[0].l_ost_idx;
- if (v3->lmm_pool_name[0] != '\0')
- pool_name = v3->lmm_pool_name;
- size = lov_user_md_size(v3->lmm_stripe_count,
- LOV_USER_MAGIC_SPECIFIC);
break;
-
+ case __swab32(LOV_USER_MAGIC_COMP_V1):
+ lustre_swab_lov_comp_md_v1(comp_v1);
+ magic = comp_v1->lcm_magic;
+ /* fall trhough */
+ case LOV_USER_MAGIC_COMP_V1:
+ break;
default:
CERROR("%s: unrecognized magic %X\n",
lod2obd(d)->obd_name, magic);
RETURN(-EINVAL);
}
- if (unlikely(buf->lb_len < size)) {
- CERROR("%s: wrong size: %zd, expect: %u\n",
- lod2obd(d)->obd_name, buf->lb_len, size);
- RETURN(-EINVAL);
- }
-
lustre_print_user_md(D_OTHER, v1, "parse config");
- v1->lmm_magic = magic;
- if (v1->lmm_pattern == 0)
- v1->lmm_pattern = LOV_PATTERN_RAID0;
- if (lov_pattern(v1->lmm_pattern) != LOV_PATTERN_RAID0) {
- CERROR("%s: invalid pattern: %x\n",
- lod2obd(d)->obd_name, v1->lmm_pattern);
- RETURN(-EINVAL);
+ if (magic == LOV_USER_MAGIC_COMP_V1) {
+ comp_cnt = comp_v1->lcm_entry_count;
+ if (comp_cnt == 0)
+ RETURN(-EINVAL);
+ lo->ldo_is_composite = 1;
+ } else {
+ comp_cnt = 1;
+ lo->ldo_is_composite = 0;
}
- lo->ldo_pattern = v1->lmm_pattern;
- if (v1->lmm_stripe_size > 0)
- lo->ldo_stripe_size = v1->lmm_stripe_size;
+ rc = lod_alloc_comp_entries(lo, comp_cnt);
+ if (rc)
+ RETURN(rc);
+
+ for (i = 0; i < comp_cnt; i++) {
+ struct pool_desc *pool;
+ struct lu_extent *ext;
+ char *pool_name;
- if (lo->ldo_stripe_size & (LOV_MIN_STRIPE_SIZE - 1))
- lo->ldo_stripe_size = LOV_MIN_STRIPE_SIZE;
+ lod_comp = &lo->ldo_comp_entries[i];
- if (v1->lmm_stripe_count > 0)
- lo->ldo_stripenr = v1->lmm_stripe_count;
+ if (lo->ldo_is_composite) {
+ v1 = (struct lov_user_md *)((char *)comp_v1 +
+ comp_v1->lcm_entries[i].lcme_offset);
+ ext = &comp_v1->lcm_entries[i].lcme_extent;
+ lod_comp->llc_extent = *ext;
+ }
- lo->ldo_stripe_offset = v1->lmm_stripe_offset;
+ pool_name = NULL;
+ if (v1->lmm_magic == LOV_USER_MAGIC_V3 ||
+ v1->lmm_magic == LOV_USER_MAGIC_SPECIFIC) {
+ v3 = (struct lov_user_md_v3 *)v1;
- lod_object_set_pool(lo, NULL);
- if (pool_name != NULL) {
- struct pool_desc *pool;
+ if (v3->lmm_pool_name[0] != '\0')
+ pool_name = v3->lmm_pool_name;
+
+ if (v3->lmm_magic == LOV_USER_MAGIC_SPECIFIC &&
+ v3->lmm_stripe_offset == LOV_OFFSET_DEFAULT)
+ v3->lmm_stripe_offset =
+ v3->lmm_objects[0].l_ost_idx;
+ }
+
+ if (v1->lmm_pattern == 0)
+ v1->lmm_pattern = LOV_PATTERN_RAID0;
+ if (lov_pattern(v1->lmm_pattern) != LOV_PATTERN_RAID0) {
+ CDEBUG(D_LAYOUT, "%s: invalid pattern: %x\n",
+ lod2obd(d)->obd_name, v1->lmm_pattern);
+ lod_free_comp_entries(lo);
+ RETURN(-EINVAL);
+ }
+
+ lod_comp->llc_pattern = v1->lmm_pattern;
+
+ lod_comp->llc_stripe_size = desc->ld_default_stripe_size;
+ if (v1->lmm_stripe_size > 0)
+ lod_comp->llc_stripe_size = v1->lmm_stripe_size;
+
+ lod_comp->llc_stripenr = desc->ld_default_stripe_count;
+ if (v1->lmm_stripe_count > 0)
+ lod_comp->llc_stripenr = v1->lmm_stripe_count;
+
+ lod_comp->llc_stripe_offset = v1->lmm_stripe_offset;
+ lod_obj_set_pool(lo, i, pool_name);
+
+ if (pool_name == NULL)
+ continue;
/* In the function below, .hs_keycmp resolves to
* pool_hashkey_keycmp() */
/* coverity[overrun-buffer-val] */
pool = lod_find_pool(d, pool_name);
- if (pool != NULL) {
- if (lo->ldo_stripe_offset != LOV_OFFSET_DEFAULT) {
- rc = lod_check_index_in_pool(
- lo->ldo_stripe_offset, pool);
- if (rc < 0) {
- lod_pool_putref(pool);
- CERROR("%s: invalid offset, %u\n",
- lod2obd(d)->obd_name,
- lo->ldo_stripe_offset);
- RETURN(-EINVAL);
- }
- }
-
- if (lo->ldo_stripenr > pool_tgt_count(pool))
- lo->ldo_stripenr = pool_tgt_count(pool);
+ if (pool == NULL)
+ continue;
- lod_pool_putref(pool);
+ if (lod_comp->llc_stripe_offset != LOV_OFFSET_DEFAULT) {
+ rc = lod_check_index_in_pool(
+ lod_comp->llc_stripe_offset, pool);
+ if (rc < 0) {
+ lod_pool_putref(pool);
+ CDEBUG(D_LAYOUT, "%s: invalid offset, %u\n",
+ lod2obd(d)->obd_name,
+ lod_comp->llc_stripe_offset);
+ lod_free_comp_entries(lo);
+ RETURN(-EINVAL);
+ }
}
- lod_object_set_pool(lo, pool_name);
- }
+ if (lod_comp->llc_stripenr > pool_tgt_count(pool))
+ lod_comp->llc_stripenr = pool_tgt_count(pool);
- /* fixup for released file */
- if (lo->ldo_pattern & LOV_PATTERN_F_RELEASED) {
- lo->ldo_released_stripenr = lo->ldo_stripenr;
- lo->ldo_stripenr = 0;
+ lod_pool_putref(pool);
}
RETURN(0);
* \param[in] attr attributes OST objects will be declared with
* \param[in] buf suggested striping configuration or NULL
* \param[in] th transaction handle
+ * \param[in] comp_idx index of ldo_comp_entries
+ * \param[in|out]inuse array of inuse ost index
*
* \retval 0 on success
* \retval negative negated errno on error
*/
-int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
- struct lu_attr *attr, const struct lu_buf *buf,
- struct thandle *th)
+static int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
+ struct lu_attr *attr, const struct lu_buf *buf,
+ struct thandle *th, int comp_idx,
+ struct ost_pool *inuse)
{
+ struct lod_layout_component *lod_comp;
struct lod_device *d = lu2lod_dev(lod2lu_obj(lo)->lo_dev);
struct dt_object **stripe;
int stripe_len;
int flag = LOV_USES_ASSIGNED_STRIPE;
- int i, rc;
+ int i, rc = 0;
ENTRY;
LASSERT(lo);
+ LASSERT(lo->ldo_comp_cnt > comp_idx && lo->ldo_comp_entries != NULL);
+ lod_comp = &lo->ldo_comp_entries[comp_idx];
- /* no OST available */
- /* XXX: should we be waiting a bit to prevent failures during
- * cluster initialization? */
- if (d->lod_ostnr == 0)
- GOTO(out, rc = -EIO);
-
- /*
- * by this time, the object's ldo_stripenr and ldo_stripe_size
- * contain default value for striping: taken from the parent
- * or from filesystem defaults
- *
- * in case the caller is passing lovea with new striping config,
- * we may need to parse lovea and apply new configuration
- */
- rc = lod_qos_parse_config(env, lo, buf);
- if (rc)
- GOTO(out, rc);
-
- /* A released file is being created */
- if (lo->ldo_stripenr == 0)
- GOTO(out, rc = 0);
+ /* A released component is being created */
+ if (lod_comp->llc_pattern & LOV_PATTERN_F_RELEASED)
+ RETURN(0);
- if (likely(lo->ldo_stripe == NULL)) {
+ if (likely(lod_comp->llc_stripe == NULL)) {
struct lov_user_md *lum = NULL;
/*
* no striping has been created so far
*/
- LASSERT(lo->ldo_stripenr > 0);
+ LASSERT(lod_comp->llc_stripenr > 0);
/*
* statfs and check OST targets now, since ld_active_tgt_count
* could be changed if some OSTs are [de]activated manually.
*/
lod_qos_statfs_update(env, d);
- lo->ldo_stripenr = lod_get_stripecnt(d, LOV_MAGIC,
- lo->ldo_stripenr);
-
- stripe_len = lo->ldo_stripenr;
+ stripe_len = lod_get_stripecnt(d, lo, lod_comp->llc_stripenr);
+ if (stripe_len == 0)
+ GOTO(out, rc = -ERANGE);
+ lod_comp->llc_stripenr = stripe_len;
OBD_ALLOC(stripe, sizeof(stripe[0]) * stripe_len);
if (stripe == NULL)
GOTO(out, rc = -ENOMEM);
CDEBUG(D_OTHER, "tgt_count %d stripenr %d\n",
d->lod_desc.ld_tgt_count, stripe_len);
- if (buf != NULL && buf->lb_buf != NULL)
+ if (buf != NULL && buf->lb_buf != NULL) {
lum = buf->lb_buf;
+ if (lum->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
+ struct lov_comp_md_v1 *comp_v1;
+
+ comp_v1 = (struct lov_comp_md_v1 *)lum;
+ lum = (struct lov_user_md *)((char *)comp_v1 +
+ comp_v1->lcm_entries[comp_idx].lcme_offset);
+ }
+ }
if (lum != NULL && lum->lmm_magic == LOV_USER_MAGIC_SPECIFIC) {
- rc = lod_alloc_ost_list(env, lo, stripe, lum, th);
- } else if (lo->ldo_stripe_offset == LOV_OFFSET_DEFAULT) {
- rc = lod_alloc_qos(env, lo, stripe, flag, th);
+ rc = lod_alloc_ost_list(env, lo, stripe, lum, th,
+ comp_idx, inuse);
+ } else if (lod_comp->llc_stripe_offset == LOV_OFFSET_DEFAULT) {
+ rc = lod_alloc_qos(env, lo, stripe, flag, th,
+ comp_idx, inuse);
if (rc == -EAGAIN)
- rc = lod_alloc_rr(env, lo, stripe, flag, th);
+ rc = lod_alloc_rr(env, lo, stripe, flag, th,
+ comp_idx, inuse);
} else {
- rc = lod_alloc_specific(env, lo, stripe, flag, th);
+ rc = lod_alloc_specific(env, lo, stripe, flag, th,
+ comp_idx, inuse);
}
lod_putref(d, &d->lod_ost_descs);
dt_object_put(env, stripe[i]);
OBD_FREE(stripe, sizeof(stripe[0]) * stripe_len);
- lo->ldo_stripenr = 0;
+ lod_comp->llc_stripenr = 0;
} else {
- lo->ldo_stripe = stripe;
- lo->ldo_stripes_allocated = stripe_len;
+ lod_comp->llc_stripe = stripe;
+ lod_comp->llc_stripes_allocated = stripe_len;
}
- } else {
+ } else if (!(lod_comp->llc_flags & LCME_FL_INIT)) {
/*
* lod_qos_parse_config() found supplied buf as a predefined
* striping (not a hint), so it allocated all the object
* now we need to create them
*/
- for (i = 0; i < lo->ldo_stripenr; i++) {
+ for (i = 0; i < lod_comp->llc_stripenr; i++) {
struct dt_object *o;
- o = lo->ldo_stripe[i];
+ o = lod_comp->llc_stripe[i];
LASSERT(o);
rc = lod_sub_object_declare_create(env, o, attr, NULL,
RETURN(rc);
}
+static int
+lod_obj_stripe_set_inuse_cb(const struct lu_env *env, struct lod_object *lo,
+ struct dt_object *dt, struct thandle *th,
+ int stripe_idx, struct lod_obj_stripe_cb_data *data)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *d = lu2lod_dev(lod2lu_obj(lo)->lo_dev);
+ struct lu_fid *fid = &info->lti_fid;
+ __u32 index;
+ int rc, type = LU_SEQ_RANGE_OST;
+
+ *fid = *lu_object_fid(&dt->do_lu);
+ rc = lod_fld_lookup(env, d, fid, &index, &type);
+ if (rc < 0) {
+ CERROR("%s: fail to locate "DFID": rc = %d\n",
+ lod2obd(d)->obd_name, PFID(fid), rc);
+ return rc;
+ }
+ lod_comp_ost_in_use(data->locd_inuse, index);
+ return 0;
+}
+
+int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
+ struct lu_attr *attr, const struct lu_buf *buf,
+ struct thandle *th)
+
+{
+ struct lod_device *d = lu2lod_dev(lod2lu_obj(lo)->lo_dev);
+ struct ost_pool inuse;
+ int i, rc, comp_cnt;
+ ENTRY;
+
+ LASSERT(lo);
+
+ /* no OST available */
+ /* XXX: should we be waiting a bit to prevent failures during
+ * cluster initialization? */
+ if (d->lod_ostnr == 0)
+ RETURN(-EIO);
+
+ /*
+ * by this time, the object's ldo_stripenr and ldo_stripe_size
+ * contain default value for striping: taken from the parent
+ * or from filesystem defaults
+ *
+ * in case the caller is passing lovea with new striping config,
+ * we may need to parse lovea and apply new configuration
+ */
+ rc = lod_qos_parse_config(env, lo, buf);
+ if (rc)
+ RETURN(rc);
+
+ memset(&inuse, 0, sizeof(inuse));
+ init_rwsem(&inuse.op_rw_sem);
+ comp_cnt = lo->ldo_comp_cnt;
+
+ /* Prepare inuse array for composite file */
+ if (lo->ldo_is_composite) {
+ struct lod_obj_stripe_cb_data data;
+
+ inuse.op_size = comp_cnt * LOV_MAX_STRIPE_COUNT_OLD *
+ sizeof(__u32);
+ if (d->lod_osd_max_easize > 0 &&
+ inuse.op_size > d->lod_osd_max_easize)
+ inuse.op_size = d->lod_osd_max_easize;
+ OBD_ALLOC(inuse.op_array, inuse.op_size);
+ if (inuse.op_array == NULL)
+ RETURN(-ENOMEM);
+
+ data.locd_inuse = &inuse;
+ rc = lod_obj_for_each_stripe(env, lo, NULL,
+ lod_obj_stripe_set_inuse_cb, &data);
+ if (rc) {
+ OBD_FREE(inuse.op_array, inuse.op_size);
+ RETURN(rc);
+ }
+ }
+
+ /* prepare OST object creation */
+ for (i = 0; i < comp_cnt; i++) {
+ rc = lod_qos_prep_create(env, lo, attr, buf, th, i, &inuse);
+ if (rc)
+ break;
+ }
+
+ if (inuse.op_size)
+ OBD_FREE(inuse.op_array, inuse.op_size);
+ RETURN(rc);
+}
rc = ptlrpc_queue_wait(req);
- if (opcode == MDS_REINT)
+ if (opcode == MDS_REINT)
mdc_put_mod_rpc_slot(req, NULL);
+ /* For XATTR_LUSTRE_LOV.add, we'd save the LOVEA for replay. */
+ if (opcode == MDS_REINT && rc == 0) {
+ struct mdt_body *body;
+ struct req_capsule *pill = &req->rq_pill;
+
+ body = req_capsule_server_get(pill, &RMF_MDT_BODY);
+ if (body == NULL)
+ GOTO(out, rc = -EPROTO);
+
+ if (body->mbo_valid & OBD_MD_FLEASIZE) {
+ void *eadata, *lmm;
+
+ eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
+ body->mbo_eadatasize);
+ if (eadata == NULL)
+ GOTO(out, rc = -EPROTO);
+
+ if (req_capsule_get_size(pill, &RMF_EADATA,
+ RCL_CLIENT) <
+ body->mbo_eadatasize) {
+ rc = sptlrpc_cli_enlarge_reqbuf(req, 4,
+ body->mbo_eadatasize);
+ if (rc)
+ GOTO(out, rc = -ENOMEM);
+ } else {
+ req_capsule_shrink(pill, &RMF_EADATA,
+ body->mbo_eadatasize,
+ RCL_CLIENT);
+ }
+
+ req_capsule_set_size(pill, &RMF_EADATA, RCL_CLIENT,
+ body->mbo_eadatasize);
+
+ lmm = req_capsule_client_get(pill, &RMF_EADATA);
+ if (lmm)
+ memcpy(lmm, eadata, body->mbo_eadatasize);
+ }
+ }
+out:
if (rc)
ptlrpc_req_finished(req);
else
const char *xattr_name)
{
/* Layout changes systematically recorded */
- if (strcmp(XATTR_NAME_LOV, xattr_name) == 0)
+ if (strcmp(XATTR_NAME_LOV, xattr_name) == 0 ||
+ strncmp(XATTR_LUSTRE_LOV, xattr_name,
+ strlen(XATTR_LUSTRE_LOV)) == 0)
return CL_LAYOUT;
/* HSM information changes systematically recorded */
RETURN(0);
}
+/* XXX To set the proper lmm_oi & lmm_layout_gen when swap layouts, we have to
+ * look into the layout in MDD layer. */
+static int mdd_lmm_oi(struct lov_mds_md *lmm, struct ost_id *oi, bool get)
+{
+ struct lov_comp_md_v1 *comp_v1;
+ struct lov_mds_md *v1;
+ int i, ent_count;
+ __u32 off;
+
+ if (le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_COMP_V1) {
+ comp_v1 = (struct lov_comp_md_v1 *)lmm;
+ ent_count = le16_to_cpu(comp_v1->lcm_entry_count);
+
+ if (ent_count == 0)
+ return -EINVAL;
+
+ if (get) {
+ off = le32_to_cpu(comp_v1->lcm_entries[0].lcme_offset);
+ v1 = (struct lov_mds_md *)((char *)comp_v1 + off);
+ *oi = v1->lmm_oi;
+ } else {
+ for (i = 0; i < le32_to_cpu(ent_count); i++) {
+ off = le32_to_cpu(comp_v1->lcm_entries[i].
+ lcme_offset);
+ v1 = (struct lov_mds_md *)((char *)comp_v1 +
+ off);
+ v1->lmm_oi = *oi;
+ }
+ }
+ } else if (le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_V1 ||
+ le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_V3) {
+ if (get)
+ *oi = lmm->lmm_oi;
+ else
+ lmm->lmm_oi = *oi;
+ } else {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static inline int mdd_get_lmm_oi(struct lov_mds_md *lmm, struct ost_id *oi)
+{
+ return mdd_lmm_oi(lmm, oi, true);
+}
+
+static inline int mdd_set_lmm_oi(struct lov_mds_md *lmm, struct ost_id *oi)
+{
+ return mdd_lmm_oi(lmm, oi, false);
+}
+
+static int mdd_lmm_gen(struct lov_mds_md *lmm, __u32 *gen, bool get)
+{
+ struct lov_comp_md_v1 *comp_v1;
+
+ if (le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_COMP_V1) {
+ comp_v1 = (struct lov_comp_md_v1 *)lmm;
+ if (get)
+ *gen = le32_to_cpu(comp_v1->lcm_layout_gen);
+ else
+ comp_v1->lcm_layout_gen = cpu_to_le32(*gen);
+ } else if (le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_V1 ||
+ le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_V3) {
+ __u16 tmp_gen = *gen;
+ if (get)
+ *gen = le16_to_cpu(lmm->lmm_layout_gen);
+ else
+ lmm->lmm_layout_gen = cpu_to_le16(tmp_gen);
+ } else {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static inline int mdd_get_lmm_gen(struct lov_mds_md *lmm, __u32 *gen)
+{
+ return mdd_lmm_gen(lmm, gen, true);
+}
+
+static inline int mdd_set_lmm_gen(struct lov_mds_md *lmm, __u32 *gen)
+{
+ return mdd_lmm_gen(lmm, gen, false);
+}
+
/**
* swap layouts between 2 lustre objects
*/
struct lu_buf *snd_hsm_buf = &info->mti_buf[3];
struct ost_id *saved_oi = NULL;
struct thandle *handle;
- __u16 fst_gen, snd_gen;
+ __u32 fst_gen, snd_gen, saved_gen;
int fst_fl;
int rc;
int rc2;
swap(fst_buf, snd_buf);
}
+ fst_gen = snd_gen = 0;
/* lmm and generation layout initialization */
if (fst_buf->lb_buf != NULL) {
fst_lmm = fst_buf->lb_buf;
- fst_gen = le16_to_cpu(fst_lmm->lmm_layout_gen);
+ mdd_get_lmm_gen(fst_lmm, &fst_gen);
fst_fl = LU_XATTR_REPLACE;
} else {
fst_lmm = NULL;
}
snd_lmm = snd_buf->lb_buf;
- snd_gen = le16_to_cpu(snd_lmm->lmm_layout_gen);
+ mdd_get_lmm_gen(snd_lmm, &snd_gen);
+ saved_gen = fst_gen;
/* increase the generation layout numbers */
snd_gen++;
fst_gen++;
+ /*
+ * XXX The layout generation is used to generate component IDs for
+ * the composite file, we have to do some special tweaks to make
+ * sure the layout generation is always adequate for that job.
+ */
+
+ /* Skip invalid generation number for composite layout */
+ if ((snd_gen & LCME_ID_MASK) == 0)
+ snd_gen++;
+ if ((fst_gen & LCME_ID_MASK) == 0)
+ fst_gen++;
+ /* Make sure the generation is greater than all the component IDs */
+ if (fst_gen < snd_gen)
+ fst_gen = snd_gen;
+ else if (fst_gen > snd_gen)
+ snd_gen = fst_gen;
+
/* set the file specific informations in lmm */
if (fst_lmm != NULL) {
saved_oi = &info->mti_oa.o_oi;
-
- *saved_oi = fst_lmm->lmm_oi;
- fst_lmm->lmm_layout_gen = cpu_to_le16(snd_gen);
- fst_lmm->lmm_oi = snd_lmm->lmm_oi;
- snd_lmm->lmm_oi = *saved_oi;
+ mdd_get_lmm_oi(fst_lmm, saved_oi);
+ mdd_set_lmm_gen(fst_lmm, &snd_gen);
+ mdd_set_lmm_oi(fst_lmm, &snd_lmm->lmm_oi);
+ mdd_set_lmm_oi(snd_lmm, saved_oi);
} else {
- if (snd_lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V1))
- snd_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1_DEF);
- else if (snd_lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V3))
- snd_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V3_DEF);
+ if ((snd_lmm->lmm_magic & cpu_to_le32(LOV_MAGIC_MASK)) ==
+ cpu_to_le32(LOV_MAGIC_MAGIC))
+ snd_lmm->lmm_magic |= cpu_to_le32(LOV_MAGIC_DEF);
else
GOTO(stop, rc = -EPROTO);
}
- snd_lmm->lmm_layout_gen = cpu_to_le16(fst_gen);
+ mdd_set_lmm_gen(snd_lmm, &fst_gen);
/* Prepare HSM attribute if it's required */
if (flags & SWAP_LAYOUTS_MDS_HSM) {
/* failure on second file, but first was done, so we have
* to roll back first. */
if (fst_buf->lb_buf != NULL) {
- fst_lmm->lmm_oi = *saved_oi;
- fst_lmm->lmm_layout_gen = cpu_to_le16(fst_gen - 1);
+ mdd_set_lmm_oi(fst_lmm, saved_oi);
+ mdd_set_lmm_gen(fst_lmm, &saved_gen);
rc2 = mdo_xattr_set(env, fst_o, fst_buf, XATTR_NAME_LOV,
LU_XATTR_REPLACE, handle);
} else {
}
#endif
+/* XXX Look into layout in MDT layer. */
+static inline bool mdt_hsm_is_released(struct lov_mds_md *lmm)
+{
+ struct lov_comp_md_v1 *comp_v1;
+ struct lov_mds_md *v1;
+ int i;
+
+ if (lmm->lmm_magic == LOV_MAGIC_COMP_V1) {
+ comp_v1 = (struct lov_comp_md_v1 *)lmm;
+
+ for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+ v1 = (struct lov_mds_md *)((char *)comp_v1 +
+ comp_v1->lcm_entries[i].lcme_offset);
+ /* We don't support partial release for now */
+ if (!(v1->lmm_pattern & LOV_PATTERN_F_RELEASED))
+ return false;
+ }
+ return true;
+ } else {
+ return (lmm->lmm_pattern & LOV_PATTERN_F_RELEASED) ?
+ true : false;
+ }
+}
+
void mdt_pack_attr2body(struct mdt_thread_info *info, struct mdt_body *b,
const struct lu_attr *attr, const struct lu_fid *fid)
{
* b=22272 */
b->mbo_valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
} else if ((ma->ma_valid & MA_LOV) && ma->ma_lmm != NULL &&
- ma->ma_lmm->lmm_pattern & LOV_PATTERN_F_RELEASED) {
+ mdt_hsm_is_released(ma->ma_lmm)) {
/* A released file stores its size on MDS. */
/* But return 1 block for released file, unless tools like tar
* will consider it fully sparse. (LU-3864)
struct lu_buf *buffer = &info->mti_buf;
struct obd_export *exp = info->mti_exp;
int rc;
- int is_root;
ENTRY;
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETATTR_PACK))
repbody->mbo_t_state = MS_RESTORE;
}
- is_root = lu_fid_eq(mdt_object_fid(o), &info->mti_mdt->mdt_md_root_fid);
-
- /* the Lustre protocol supposes to return default striping
- * on the user-visible root if explicitly requested */
- if ((ma->ma_valid & MA_LOV) == 0 && S_ISDIR(la->la_mode) &&
- (ma->ma_need & MA_LOV_DEF && is_root) && ma->ma_need & MA_LOV) {
- struct lu_fid rootfid;
- struct mdt_object *root;
- struct mdt_device *mdt = info->mti_mdt;
-
- rc = dt_root_get(env, mdt->mdt_bottom, &rootfid);
- if (rc)
- RETURN(rc);
- root = mdt_object_find(env, mdt, &rootfid);
- if (IS_ERR(root))
- RETURN(PTR_ERR(root));
- rc = mdt_stripe_get(info, root, ma, XATTR_NAME_LOV);
- mdt_object_put(info->mti_env, root);
- if (unlikely(rc)) {
- CERROR("%s: getattr error for "DFID": rc = %d\n",
- mdt_obd_name(info->mti_mdt),
- PFID(mdt_object_fid(o)), rc);
- RETURN(rc);
- }
- }
-
if (likely(ma->ma_valid & MA_INODE))
mdt_pack_attr2body(info, repbody, la, mdt_object_fid(o));
else
enum mdt_name_flags flags);
int mdt_close_unpack(struct mdt_thread_info *info);
int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op);
+void mdt_fix_lov_magic(struct mdt_thread_info *info);
int mdt_reint_rec(struct mdt_thread_info *, struct mdt_lock_handle *);
#ifdef CONFIG_FS_POSIX_ACL
int mdt_pack_acl2body(struct mdt_thread_info *info, struct mdt_body *repbody,
/*
* please see comment above LOV_MAGIC_V1_DEF
*/
-static void mdt_fix_lov_magic(struct mdt_thread_info *info)
+void mdt_fix_lov_magic(struct mdt_thread_info *info)
{
struct mdt_reint_record *rr = &info->mti_rr;
struct lov_user_md_v1 *v1;
LASSERT(v1);
if (unlikely(req_is_replay(mdt_info_req(info)))) {
- if (v1->lmm_magic == LOV_USER_MAGIC_V1) {
- v1->lmm_magic = LOV_MAGIC_V1_DEF;
- } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
- v1->lmm_magic = __swab32(LOV_MAGIC_V1_DEF);
- } else if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
- v1->lmm_magic = LOV_MAGIC_V3_DEF;
- } else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
- v1->lmm_magic = __swab32(LOV_MAGIC_V3_DEF);
- }
+ if ((v1->lmm_magic & LOV_MAGIC_MASK) == LOV_MAGIC_MAGIC)
+ v1->lmm_magic |= LOV_MAGIC_DEF;
+ else if ((v1->lmm_magic & __swab32(LOV_MAGIC_MAGIC)) ==
+ __swab32(LOV_MAGIC_MAGIC))
+ v1->lmm_magic |= __swab32(LOV_MAGIC_DEF);
}
}
return obj;
}
+/* XXX Look into layout in MDT layer. */
+static inline int mdt_hsm_set_released(struct lov_mds_md *lmm)
+{
+ struct lov_comp_md_v1 *comp_v1;
+ struct lov_mds_md *v1;
+ __u32 off;
+ int i;
+
+ if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_COMP_V1_DEF)) {
+ comp_v1 = (struct lov_comp_md_v1 *)lmm;
+
+ if (comp_v1->lcm_entry_count == 0)
+ return -EINVAL;
+
+ for (i = 0; i < le32_to_cpu(comp_v1->lcm_entry_count); i++) {
+ off = le32_to_cpu(comp_v1->lcm_entries[i].lcme_offset);
+ v1 = (struct lov_mds_md *)((char *)comp_v1 + off);
+ v1->lmm_pattern |= cpu_to_le32(LOV_PATTERN_F_RELEASED);
+ }
+ } else {
+ lmm->lmm_pattern |= cpu_to_le32(LOV_PATTERN_F_RELEASED);
+ }
+ return 0;
+}
+
static int mdt_hsm_release(struct mdt_thread_info *info, struct mdt_object *o,
struct md_attr *ma)
{
ma->ma_lmm->lmm_stripe_size = cpu_to_le32(LOV_MIN_STRIPE_SIZE);
ma->ma_lmm_size = sizeof(*ma->ma_lmm);
} else {
- /* Magic must be LOV_MAGIC_Vx_DEF otherwise LOD will interpret
+ /* Magic must be LOV_MAGIC_*_DEF otherwise LOD will interpret
* ma_lmm as lov_user_md, then it will be confused by union of
* layout_gen and stripe_offset. */
- if (le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V1)
- ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1_DEF);
- else if (le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V3)
- ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V3_DEF);
+ if ((le32_to_cpu(ma->ma_lmm->lmm_magic) & LOV_MAGIC_MASK) ==
+ LOV_MAGIC_MAGIC)
+ ma->ma_lmm->lmm_magic |= cpu_to_le32(LOV_MAGIC_DEF);
else
GOTO(out_unlock, rc = -EINVAL);
}
- /* Set file as released */
- ma->ma_lmm->lmm_pattern |= cpu_to_le32(LOV_PATTERN_F_RELEASED);
+ /* Set file as released. */
+ rc = mdt_hsm_set_released(ma->ma_lmm);
+ if (rc)
+ GOTO(out_unlock, rc);
orp_ma = &info->mti_u.hsm.attr;
orp_ma->ma_attr.la_mode = S_IFREG | S_IWUSR;
__u64 valid = attr->la_valid;
const char *xattr_name = rr->rr_name.ln_name;
int xattr_len = rr->rr_eadatalen;
- __u64 lockpart;
+ __u64 lockpart = MDS_INODELOCK_UPDATE;
int rc;
+ bool reply_ea = false;
ENTRY;
CDEBUG(D_INODE, "setxattr for "DFID": %s %s\n", PFID(rr->rr_fid1),
/* ACLs were mapped out, return an error so the user knows */
if (rc != xattr_len)
GOTO(out, rc = -EPERM);
+ } else if ((strlen(xattr_name) > strlen(XATTR_LUSTRE_LOV) + 1) &&
+ strncmp(xattr_name, XATTR_LUSTRE_LOV,
+ strlen(XATTR_LUSTRE_LOV)) == 0) {
+
+ if (strncmp(xattr_name, XATTR_LUSTRE_LOV".add",
+ strlen(XATTR_LUSTRE_LOV".add")) &&
+ strncmp(xattr_name, XATTR_LUSTRE_LOV".set",
+ strlen(XATTR_LUSTRE_LOV".set")) &&
+ strncmp(xattr_name, XATTR_LUSTRE_LOV".del",
+ strlen(XATTR_LUSTRE_LOV".del"))) {
+ CERROR("%s: invalid xattr name: %s\n",
+ mdt_obd_name(info->mti_mdt), xattr_name);
+ GOTO(out, rc = -EINVAL);
+ }
+
+ lockpart |= MDS_INODELOCK_LAYOUT;
+
+ /*
+ * For XATTR_LUSTRE_LOV.add, we'd reply LOVEA to client,
+ * client will save it for replay.
+ */
+ if (strncmp(xattr_name, XATTR_LUSTRE_LOV".add",
+ strlen(XATTR_LUSTRE_LOV".add")) == 0 &&
+ req_capsule_has_field(&req->rq_pill, &RMF_MDT_MD,
+ RCL_SERVER)) {
+ /*
+ * Don't need to reply LOVEA for replay request,
+ * it's already stored in client request.
+ */
+ if (!req_is_replay(req))
+ reply_ea = true;
+ mdt_fix_lov_magic(info);
+ }
}
- lockpart = MDS_INODELOCK_UPDATE;
/* Revoke all clients' lookup lock, since the access
* permissions for this inode is changed when ACL_ACCESS is
* set. This isn't needed for ACL_DEFAULT, since that does
CDEBUG(D_INFO, "valid bits: %#llx\n", valid);
rc = -EINVAL;
}
+
+ if (reply_ea && rc == 0) {
+ ma->ma_lmm = req_capsule_server_get(&req->rq_pill, &RMF_MDT_MD);
+ ma->ma_lmm_size = req_capsule_get_size(&req->rq_pill,
+ &RMF_MDT_MD, RCL_SERVER);
+ ma->ma_need = MA_LOV;
+ ma->ma_valid = 0;
+ if (ma->ma_lmm_size > 0)
+ rc = mdt_attr_get_complex(info, obj, ma);
+
+ if (ma->ma_valid & MA_LOV) {
+ struct mdt_body *repbody;
+
+ repbody = req_capsule_server_get(&req->rq_pill,
+ &RMF_MDT_BODY);
+ LASSERT(ma->ma_lmm_size != 0);
+ repbody->mbo_eadatasize = ma->ma_lmm_size;
+ repbody->mbo_valid |= OBD_MD_FLEASIZE;
+ }
+ }
+
if (rc == 0)
mdt_counter_incr(req, LPROC_MDT_SETXATTR);
&RMF_DLM_REQ
};
+static const struct req_msg_field *mds_reint_setxattr_server[] = {
+ &RMF_PTLRPC_BODY,
+ &RMF_MDT_BODY,
+ &RMF_MDT_MD
+};
+
static const struct req_msg_field *mdt_swap_layouts[] = {
&RMF_PTLRPC_BODY,
&RMF_MDT_BODY,
struct req_format RQF_MDS_REINT_SETXATTR =
DEFINE_REQ_FMT0("MDS_REINT_SETXATTR",
- mds_reint_setxattr_client, mdt_body_only);
+ mds_reint_setxattr_client, mds_reint_setxattr_server);
EXPORT_SYMBOL(RQF_MDS_REINT_SETXATTR);
struct req_format RQF_MDS_CONNECT =
}
EXPORT_SYMBOL(lustre_swab_lmv_user_md);
-void lustre_print_user_md(unsigned int lvl, struct lov_user_md *lum,
- const char *msg)
+static void lustre_print_v1v3(unsigned int lvl, struct lov_user_md *lum,
+ const char *msg)
{
- if (likely(!cfs_cdebug_show(lvl, DEBUG_SUBSYSTEM)))
- return;
-
CDEBUG(lvl, "%s lov_user_md %p:\n", msg, lum);
CDEBUG(lvl, "\tlmm_magic: %#x\n", lum->lmm_magic);
CDEBUG(lvl, "\tlmm_pattern: %#x\n", lum->lmm_pattern);
CDEBUG(lvl, "\t\t%u\n", v3->lmm_objects[i].l_ost_idx);
}
}
+
+void lustre_print_user_md(unsigned int lvl, struct lov_user_md *lum,
+ const char *msg)
+{
+ struct lov_comp_md_v1 *comp_v1;
+ int i;
+
+ if (likely(!cfs_cdebug_show(lvl, DEBUG_SUBSYSTEM)))
+ return;
+
+ if (lum->lmm_magic == LOV_USER_MAGIC_V1 ||
+ lum->lmm_magic == LOV_USER_MAGIC_V3) {
+ lustre_print_v1v3(lvl, lum, msg);
+ return;
+ }
+
+ if (lum->lmm_magic != LOV_USER_MAGIC_COMP_V1) {
+ CDEBUG(lvl, "%s: bad magic: %x\n", msg, lum->lmm_magic);
+ return;
+ }
+
+ comp_v1 = (struct lov_comp_md_v1 *)lum;
+ CDEBUG(lvl, "%s: lov_comp_md_v1 %p:\n", msg, lum);
+ CDEBUG(lvl, "\tlcm_magic: %#x\n", comp_v1->lcm_magic);
+ CDEBUG(lvl, "\tlcm_size: %#x\n", comp_v1->lcm_size);
+ CDEBUG(lvl, "\tlcm_layout_gen: %#x\n", comp_v1->lcm_layout_gen);
+ CDEBUG(lvl, "\tlcm_flags: %#x\n", comp_v1->lcm_flags);
+ CDEBUG(lvl, "\tlcm_entry_count: %#x\n\n", comp_v1->lcm_entry_count);
+
+ for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+ struct lov_comp_md_entry_v1 *ent = &comp_v1->lcm_entries[i];
+ struct lov_user_md *v1;
+
+ CDEBUG(lvl, "\tentry %d:\n", i);
+ CDEBUG(lvl, "\tlcme_id: %#x\n", ent->lcme_id);
+ CDEBUG(lvl, "\tlcme_flags: %#x\n", ent->lcme_flags);
+ CDEBUG(lvl, "\tlcme_extent.e_start: %llu\n",
+ ent->lcme_extent.e_start);
+ CDEBUG(lvl, "\tlcme_extent.e_end: %llu\n",
+ ent->lcme_extent.e_end);
+ CDEBUG(lvl, "\tlcme_offset: %#x\n", ent->lcme_offset);
+ CDEBUG(lvl, "\tlcme_size: %#x\n\n", ent->lcme_size);
+
+ v1 = (struct lov_user_md *)((char *)comp_v1 +
+ comp_v1->lcm_entries[i].lcme_offset);
+ lustre_print_v1v3(lvl, v1, msg);
+ }
+}
EXPORT_SYMBOL(lustre_print_user_md);
static void lustre_swab_lmm_oi(struct ost_id *oi)
git://git.whamcloud.com / fs / lustre-release.git / commitdiff