/* number of registered TGTs */
__u32 ltd_tgtnr;
/* bitmap of TGTs available */
- cfs_bitmap_t *ltd_tgt_bitmap;
+ struct cfs_bitmap *ltd_tgt_bitmap;
/* TGTs scheduled to be deleted */
__u32 ltd_death_row;
/* Table refcount used for delayed deletion */
/* lov settings descriptor storing static information */
struct lov_desc lod_desc;
- /* use to protect ld_active_tgt_count and all ltd_active */
- spinlock_t lod_desc_lock;
+ /* protect ld_active_tgt_count, ltd_active and lod_md_root */
+ spinlock_t lod_lock;
/* Description of OST */
struct lod_tgt_descs lod_ost_descs;
enum lustre_sec_part lod_sp_me;
struct proc_dir_entry *lod_symlink;
+
+ /* ROOT object, used to fetch FS default striping */
+ struct lod_object *lod_md_root;
};
#define lod_osts lod_ost_descs.ltd_tgts
#define ltd_mdt ltd_tgt
#define lod_mdt_desc lod_tgt_desc
-struct lod_dir_stripe_info {
- __u32 ldsi_stripe_offset;
- __u32 ldsi_def_stripenr;
- __u32 ldsi_def_stripe_offset;
- __u32 ldsi_def_hash_type;
- __u32 ldsi_hash_type;
-
- unsigned int ldsi_def_striping_set:1,
- ldsi_def_striping_cached:1,
- ldsi_striped:1;
+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];
+ /* 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;
};
-/*
- * XXX: shrink this structure, currently it's 72bytes on 32bit arch,
- * so, slab will be allocating 128bytes
- */
struct lod_object {
- struct dt_object ldo_obj;
-
- /* if object is striped, then the next fields describe stripes */
- /* For striped directory, ldo_stripenr == slave stripe count */
- __u16 ldo_stripenr;
- __u16 ldo_layout_gen;
- __u32 ldo_stripe_size;
- __u32 ldo_pattern;
- __u16 ldo_released_stripenr;
- char *ldo_pool;
- struct dt_object **ldo_stripe;
- /* to know how much memory to free, ldo_stripenr can be less */
- /* default striping for directory represented by this object
- * is cached in stripenr/stripe_size */
- unsigned int ldo_stripes_allocated:16,
- ldo_striping_cached:1,
- ldo_def_striping_set:1,
- ldo_def_striping_cached:1,
- /* ldo_dir_slave_stripe indicate this is a slave stripe of
- * a striped dir */
- ldo_dir_slave_stripe:1;
- __u32 ldo_def_stripe_size;
- __u16 ldo_def_stripenr;
- __u16 ldo_def_stripe_offset;
- struct lod_dir_stripe_info *ldo_dir_stripe;
+ struct dt_object ldo_obj;
+ union {
+ /* file stripe */
+ 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;
+ };
+ /* directory stripe */
+ 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;
+ /*
+ * 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 dt_object **ldo_stripe;
};
-#define ldo_dir_stripe_offset ldo_dir_stripe->ldsi_stripe_offset
-#define ldo_dir_def_stripenr ldo_dir_stripe->ldsi_def_stripenr
-#define ldo_dir_hash_type ldo_dir_stripe->ldsi_hash_type
-#define ldo_dir_def_hash_type ldo_dir_stripe->ldsi_def_hash_type
-#define ldo_dir_striped ldo_dir_stripe->ldsi_striped
-#define ldo_dir_def_striping_set ldo_dir_stripe->ldsi_def_striping_set
-#define ldo_dir_def_striping_cached ldo_dir_stripe->ldsi_def_striping_cached
-#define ldo_dir_def_stripe_offset ldo_dir_stripe->ldsi_def_stripe_offset
+static inline int lod_object_set_pool(struct lod_object *lo, const char *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 != NULL) {
+ len = strlen(pool) + 1;
+ OBD_ALLOC(lo->ldo_pool, len);
+ if (lo->ldo_pool == NULL)
+ return -ENOMEM;
+ strlcpy(lo->ldo_pool, pool, len);
+ }
+ return 0;
+}
struct lod_it {
struct dt_object *lit_obj; /* object from the layer below */
struct lod_thread_info {
/* per-thread buffer for LOV EA, may be vmalloc'd */
- void *lti_ea_store;
- __u32 lti_ea_store_size;
+ void *lti_ea_store;
+ __u32 lti_ea_store_size;
/* per-thread buffer for LMV EA */
- struct lu_buf lti_buf;
- struct ost_id lti_ostid;
- struct lu_fid lti_fid;
- struct obd_statfs lti_osfs;
- struct lu_attr lti_attr;
- struct lod_it lti_it;
- struct ldlm_res_id lti_res_id;
+ struct lu_buf lti_buf;
+ struct ost_id lti_ostid;
+ struct lu_fid lti_fid;
+ struct obd_statfs lti_osfs;
+ struct lu_attr lti_attr;
+ struct lod_it lti_it;
+ struct ldlm_res_id lti_res_id;
/* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */
- char lti_key[sizeof(struct lu_dirent) + NAME_MAX];
- struct dt_object_format lti_format;
- struct lu_name lti_name;
- struct lu_buf lti_linkea_buf;
- struct dt_insert_rec lti_dt_rec;
- struct llog_catid lti_cid;
- struct llog_cookie lti_cookie;
- struct lustre_cfg lti_lustre_cfg;
+ char lti_key[sizeof(struct lu_dirent) +
+ NAME_MAX];
+ struct dt_object_format lti_format;
+ struct lu_name lti_name;
+ struct lu_buf lti_linkea_buf;
+ struct dt_insert_rec lti_dt_rec;
+ struct llog_catid lti_cid;
+ struct llog_cookie lti_cookie;
+ struct lustre_cfg lti_lustre_cfg;
+ /* used to store parent default striping in create */
+ struct lod_default_striping lti_def_striping;
};
extern const struct lu_device_operations lod_lu_ops;
void lod_sub_fini_llog(const struct lu_env *env,
struct dt_device *dt, struct ptlrpc_thread *thread);
int lodname2mdt_index(char *lodname, __u32 *mdt_index);
+extern void target_recovery_fini(struct obd_device *obd);
/* lod_lov.c */
void lod_getref(struct lod_tgt_descs *ltd);
extern struct lu_object_operations lod_lu_obj_ops;
int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo,
struct lu_buf *buf, bool resize);
-int lod_object_set_pool(struct lod_object *o, char *pool);
int lod_declare_striped_object(const struct lu_env *env, struct dt_object *dt,
struct lu_attr *attr,
const struct lu_buf *lovea, struct thandle *th);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff