* Copyright 2009 Sun Microsystems, Inc. All rights reserved
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2014, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lustre/lod/lod_internal.h
*
#define _LOD_INTERNAL_H
#include <libcfs/libcfs.h>
+#include <uapi/linux/lustre/lustre_cfg.h>
#include <obd.h>
#include <dt_object.h>
#define LMVEA_DELETE_VALUES(count, offset) \
((count) == 0 && (offset) == (typeof(offset))(-1))
-#define LOV_OFFSET_DEFAULT ((__u16)-1)
-
-struct lod_qos_rr {
- __u32 lqr_start_idx; /* start index of new inode */
- __u32 lqr_offset_idx; /* aliasing for start_idx */
- int lqr_start_count; /* reseed counter */
- struct ost_pool lqr_pool; /* round-robin optimized list */
- unsigned long lqr_dirty:1; /* recalc round-robin list */
-};
-
struct pool_desc {
char pool_name[LOV_MAXPOOLNAME + 1];
- struct ost_pool pool_obds; /* pool members */
+ struct lu_tgt_pool pool_obds; /* pool members */
atomic_t pool_refcount;
- struct lod_qos_rr pool_rr;
- struct hlist_node pool_hash; /* access by poolname */
+ struct lu_qos_rr pool_rr;
+ struct rhash_head pool_hash; /* access by poolname */
struct list_head pool_list;
+ struct rcu_head pool_rcu;
struct proc_dir_entry *pool_proc_entry;
struct obd_device *pool_lobd; /* owner */
};
-#define pool_tgt_size(p) ((p)->pool_obds.op_size)
+int lod_pool_hash_init(struct rhashtable *tbl);
+void lod_pool_hash_destroy(struct rhashtable *tbl);
+
#define pool_tgt_count(p) ((p)->pool_obds.op_count)
#define pool_tgt_array(p) ((p)->pool_obds.op_array)
#define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
-struct lod_qos {
- struct list_head lq_oss_list;
- struct rw_semaphore lq_rw_sem;
- __u32 lq_active_oss_count;
- unsigned int lq_prio_free; /* priority for free space */
- unsigned int lq_threshold_rr;/* priority for rr */
- struct lod_qos_rr lq_rr; /* round robin qos data */
- bool lq_dirty:1, /* recalc qos data */
- lq_same_space:1,/* the ost's all have approx.
- the same space avail */
- lq_reset:1; /* zero current penalties */
-};
-
-struct lod_qos_oss {
- struct obd_uuid lqo_uuid; /* ptlrpc's c_remote_uuid */
- struct list_head lqo_oss_list; /* link to lov_qos */
- __u64 lqo_bavail; /* total bytes avail on OSS */
- __u64 lqo_penalty; /* current penalty */
- __u64 lqo_penalty_per_obj; /* penalty decrease
- every obj*/
- time_t lqo_used; /* last used time, seconds */
- __u32 lqo_ost_count; /* number of osts on this oss */
-};
-
-struct ltd_qos {
- struct lod_qos_oss *ltq_oss; /* oss info */
- __u64 ltq_penalty; /* current penalty */
- __u64 ltq_penalty_per_obj; /* penalty decrease
- every obj*/
- __u64 ltq_weight; /* net weighting */
- time_t ltq_used; /* last used time, seconds */
- bool ltq_usable:1; /* usable for striping */
-};
-
-struct lod_tgt_desc {
- struct dt_device *ltd_tgt;
- struct list_head ltd_kill;
- struct obd_export *ltd_exp;
- struct obd_uuid ltd_uuid;
- __u32 ltd_gen;
- __u32 ltd_index;
- struct ltd_qos ltd_qos; /* qos info per target */
- struct obd_statfs ltd_statfs;
- struct ptlrpc_thread *ltd_recovery_thread;
- unsigned long ltd_active:1,/* is this target up for requests */
- ltd_activate:1,/* should target be activated */
- ltd_reap:1, /* should this target be deleted */
- ltd_got_update_log:1; /* Already got update log */
-};
-
-#define TGT_PTRS 256 /* number of pointers at 1st level */
-#define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
-
-struct lod_tgt_desc_idx {
- struct lod_tgt_desc *ldi_tgt[TGT_PTRS_PER_BLOCK];
-};
-
-#define LTD_TGT(ltd, index) \
- ((ltd)->ltd_tgt_idx[(index) / \
- TGT_PTRS_PER_BLOCK]->ldi_tgt[(index) % TGT_PTRS_PER_BLOCK])
+#define lod_tgt_desc lu_tgt_desc
+#define lod_tgt_descs lu_tgt_descs
#define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index)
#define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index)
-struct lod_tgt_descs {
- /* list of known TGTs */
- struct lod_tgt_desc_idx *ltd_tgt_idx[TGT_PTRS];
- /* Size of the lod_tgts array, granted to be a power of 2 */
- __u32 ltd_tgts_size;
- /* number of registered TGTs */
- __u32 ltd_tgtnr;
- /* bitmap of TGTs available */
- cfs_bitmap_t *ltd_tgt_bitmap;
- /* TGTs scheduled to be deleted */
- __u32 ltd_death_row;
- /* Table refcount used for delayed deletion */
- int ltd_refcount;
- /* mutex to serialize concurrent updates to the tgt table */
- struct mutex ltd_mutex;
- /* read/write semaphore used for array relocation */
- struct rw_semaphore ltd_rw_sem;
+
+struct lod_avoid_guide {
+ /* ids of OSSs avoid guidance */
+ __u32 *lag_oss_avoid_array;
+ /* number of filled array items */
+ unsigned int lag_oaa_count;
+ /* number of allocated array items */
+ unsigned int lag_oaa_size;
+ /* bitmap of OSTs avoid guidance */
+ unsigned long *lag_ost_avoid_bitmap;
+ u32 lag_ost_avoid_size;
+ /* how many OSTs are available for alloc */
+ __u32 lag_ost_avail;
};
+#define LOD_DOM_MIN_SIZE_KB (LOV_MIN_STRIPE_SIZE >> 10)
+#define LOD_DOM_SFS_MAX_AGE 10
+
struct lod_device {
struct dt_device lod_dt_dev;
struct obd_export *lod_child_exp;
struct dt_device *lod_child;
- struct proc_dir_entry *lod_proc_entry;
struct lprocfs_stats *lod_stats;
spinlock_t lod_connects_lock;
int lod_connects;
lod_lmv_failout:1,
lod_child_got_update_log:1;
- /* 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;
struct lod_tgt_descs lod_mdt_descs;
/* Recovery thread for lod_child */
- struct ptlrpc_thread lod_child_recovery_thread;
+ struct task_struct *lod_child_recovery_task;
/* maximum EA size underlied OSD may have */
unsigned int lod_osd_max_easize;
-
- /*FIXME: When QOS and pool is implemented for MDT, probably these
- * structure should be moved to lod_tgt_descs as well.
- */
- /* QoS info per LOD */
- struct lod_qos lod_qos; /* qos info per lod */
+ /* maximum size of MDT stripe for Data-on-MDT files. */
+ unsigned int lod_dom_stripesize_max_kb;
+ /* current DOM default stripe size adjusted by threshold */
+ unsigned int lod_dom_stripesize_cur_kb;
+ /* Threshold at which DOM default stripe will start decreasing */
+ __u64 lod_dom_threshold_free_mb;
+
+ /* Local OSD statfs cache */
+ spinlock_t lod_lsfs_lock;
+ time64_t lod_lsfs_age;
+ __u64 lod_lsfs_total_mb;
+ __u64 lod_lsfs_free_mb;
/* OST pool data */
- struct ost_pool lod_pool_info; /* all OSTs in a packed array */
int lod_pool_count;
- struct cfs_hash *lod_pools_hash_body; /* used for key access */
+ struct rhashtable lod_pools_hash_body; /* used for key access */
struct list_head lod_pool_list; /* used for sequential access */
struct proc_dir_entry *lod_pool_proc_entry;
enum lustre_sec_part lod_sp_me;
struct proc_dir_entry *lod_symlink;
+ struct dentry *lod_debugfs;
+
+ /* ROOT object, used to fetch FS default striping */
+ struct lod_object *lod_md_root;
};
-#define lod_osts lod_ost_descs.ltd_tgts
-#define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
-#define lod_ostnr lod_ost_descs.ltd_tgtnr
-#define lod_osts_size lod_ost_descs.ltd_tgts_size
-#define ltd_ost ltd_tgt
-#define lod_ost_desc lod_tgt_desc
-
-#define lod_mdts lod_mdt_descs.ltd_tgts
-#define lod_mdt_bitmap lod_mdt_descs.ltd_tgt_bitmap
-#define lod_remote_mdt_count lod_mdt_descs.ltd_tgtnr
-#define lod_mdts_size lod_mdt_descs.ltd_tgts_size
-#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;
+#define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
+#define lod_ost_count lod_ost_descs.ltd_lov_desc.ld_tgt_count
+#define lod_remote_mdt_count lod_mdt_descs.ltd_lmv_desc.ld_tgt_count
+
+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_stripe_count;
+ __u16 llc_stripes_allocated;
+ __u64 llc_timestamp; /* snapshot time */
+ char *llc_pool;
+ /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
+ struct lu_tgt_pool llc_ostlist;
+ struct dt_object **llc_stripe;
+ __u32 *llc_ost_indices;
+};
+
+struct lod_default_striping {
+ /* default LOV */
+ /* current layout component count */
+ __u16 lds_def_comp_cnt;
+ __u16 lds_def_mirror_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_stripe_count;
+ __u32 lds_dir_def_stripe_offset;
+ __u32 lds_dir_def_hash_type;
+ __u8 lds_dir_def_max_inherit;
+ __u8 lds_dir_def_max_inherit_rr;
+ /* 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;
+};
+
+static inline __u8 lmv_inherit_next(__u8 inherit)
+{
+ if (inherit == LMV_INHERIT_END || inherit == LMV_INHERIT_NONE)
+ return LMV_INHERIT_NONE;
+
+ if (inherit == LMV_INHERIT_UNLIMITED || inherit > LMV_INHERIT_MAX)
+ return inherit;
+
+ return inherit - 1;
+}
+
+static inline __u8 lmv_inherit_rr_next(__u8 inherit_rr)
+{
+ if (inherit_rr == LMV_INHERIT_RR_NONE ||
+ inherit_rr == LMV_INHERIT_RR_UNLIMITED ||
+ inherit_rr > LMV_INHERIT_RR_MAX)
+ return inherit_rr;
+
+ return inherit_rr - 1;
+}
+
+struct lod_mirror_entry {
+ __u16 lme_stale:1,
+ lme_prefer:1;
+ /* mirror id */
+ __u16 lme_id;
+ /* start,end index of this mirror in ldo_comp_entries */
+ __u16 lme_start;
+ __u16 lme_end;
};
-/*
- * 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;
+ /* common fields for both files and directories */
+ struct dt_object ldo_obj;
+ struct mutex ldo_layout_mutex;
+ union {
+ /* file stripe (LOV) */
+ struct {
+ __u32 ldo_layout_gen;
+ /* Layout component count for a regular file.
+ * It equals to 1 for non-composite layout. */
+ __u16 ldo_comp_cnt;
+ /* Layout mirror count for a PFLR file.
+ * It's 0 for files with non-composite layout. */
+ __u16 ldo_mirror_count;
+ struct lod_mirror_entry *ldo_mirrors;
+ __u32 ldo_is_composite:1,
+ ldo_flr_state:4,
+ ldo_comp_cached:1,
+ ldo_is_foreign:1;
+ };
+ /* directory stripe (LMV) */
+ struct {
+ /* Slave stripe count for striped directory. */
+ __u16 ldo_dir_stripe_count;
+ /* How many stripes allocated for a striped directory */
+ __u16 ldo_dir_stripes_allocated;
+ __u32 ldo_dir_stripe_offset;
+ __u32 ldo_dir_hash_type;
+ __u32 ldo_dir_migrate_offset;
+ __u32 ldo_dir_migrate_hash;
+ __u32 ldo_dir_layout_version;
+ /* Is a slave stripe of striped directory? */
+ __u32 ldo_dir_slave_stripe:1,
+ ldo_dir_striped:1,
+ /* the stripe has been loaded */
+ ldo_dir_stripe_loaded:1,
+ /* foreign directory */
+ ldo_dir_is_foreign;
+ /*
+ * This default LMV is parent default LMV, which will be
+ * used in child creation, and it's 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;
+ };
+ };
+ union {
+ struct {
+ /* foreign/raw format LOV */
+ char *ldo_foreign_lov;
+ size_t ldo_foreign_lov_size;
+ };
+ struct {
+ /* foreign/raw format LMV */
+ char *ldo_foreign_lmv;
+ size_t ldo_foreign_lmv_size;
+ };
+ struct {
+ /* file stripe (LOV) */
+ struct lod_layout_component *ldo_comp_entries;
+ /* slave stripes of striped directory (LMV) */
+ 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
+#define ldo_dir_split_offset ldo_dir_migrate_offset
+#define ldo_dir_split_hash ldo_dir_migrate_hash
+
+#define lod_foreach_mirror_comp(comp, lo, mirror_idx) \
+for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \
+ comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \
+ comp++)
+
+static inline bool lod_is_flr(const struct lod_object *lo)
+{
+ if (!lo->ldo_is_composite)
+ return false;
+
+ return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE;
+}
+
+static inline bool lod_is_splitting(const struct lod_object *lo)
+{
+ return lmv_hash_is_splitting(lo->ldo_dir_hash_type);
+}
+
+static inline bool lod_is_migrating(const struct lod_object *lo)
+{
+ return lmv_hash_is_migrating(lo->ldo_dir_hash_type);
+}
+
+static inline bool lod_is_layout_changing(const struct lod_object *lo)
+{
+ return lmv_hash_is_layout_changing(lo->ldo_dir_hash_type);
+}
+
+static inline int lod_set_pool(char **pool, const char *new_pool)
+{
+ int len;
+
+ if (*pool == new_pool)
+ return 0;
+
+ if (*pool != NULL) {
+ len = strlen(*pool) + 1;
+ OBD_FREE(*pool, len);
+ *pool = NULL;
+ }
+ if (new_pool != NULL) {
+ len = strlen(new_pool) + 1;
+ OBD_ALLOC(*pool, len);
+ if (*pool == NULL)
+ return -ENOMEM;
+ 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);
+}
+
+/**
+ * Create new layout generation.
+ *
+ * The only requirement for layout generation is that it changes when
+ * the layout is modified, so a circular counter is sufficient for the
+ * low rate of layout modifications.
+ *
+ * Layout generation is also used to generate unique component ID.
+ * To detect generation overflow, we preserve the highest bit of the
+ * generation when it wrapped.
+ */
+static inline void lod_obj_inc_layout_gen(struct lod_object *lo)
+{
+ __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK;
+ lo->ldo_layout_gen++;
+ lo->ldo_layout_gen |= preserve;
+ /* Zero is not a valid generation */
+ 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 */
};
struct lod_thread_info {
- /* per-thread buffer for LOV EA */
- void *lti_ea_store;
- __u32 lti_ea_store_size;
+ /* per-thread buffer for LOV EA, may be vmalloc'd */
+ 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;
+ 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;
+ struct filter_fid lti_ff;
+ __u32 *lti_comp_idx;
+ size_t lti_comp_size;
+ size_t lti_count;
+ struct lu_attr lti_layout_attr;
+ /* object allocation avoid guide info */
+ struct lod_avoid_guide lti_avoid;
+ union lmv_mds_md lti_lmv;
+ struct dt_allocation_hint lti_ah;
};
extern const struct lu_device_operations lod_lu_ops;
static inline struct lod_device* lu2lod_dev(struct lu_device *d)
{
LASSERT(lu_device_is_lod(d));
- return container_of0(d, struct lod_device, lod_dt_dev.dd_lu_dev);
+ return container_of_safe(d, struct lod_device, lod_dt_dev.dd_lu_dev);
}
static inline struct lu_device *lod2lu_dev(struct lod_device *d)
static inline struct lod_device *dt2lod_dev(struct dt_device *d)
{
LASSERT(lu_device_is_lod(&d->dd_lu_dev));
- return container_of0(d, struct lod_device, lod_dt_dev);
+ return container_of(d, struct lod_device, lod_dt_dev);
}
static inline struct lod_object *lu2lod_obj(struct lu_object *o)
{
LASSERT(ergo(o != NULL, lu_device_is_lod(o->lo_dev)));
- return container_of0(o, struct lod_object, ldo_obj.do_lu);
+ return container_of_safe(o, struct lod_object, ldo_obj.do_lu);
}
static inline struct lu_object *lod2lu_obj(struct lod_object *obj)
return &obj->ldo_obj.do_lu;
}
+static inline const struct lu_fid *lod_object_fid(struct lod_object *obj)
+{
+ return lu_object_fid(lod2lu_obj(obj));
+}
+
static inline struct lod_object *lod_obj(const struct lu_object *o)
{
LASSERT(lu_device_is_lod(o->lo_dev));
- return container_of0(o, struct lod_object, ldo_obj.do_lu);
+ return container_of(o, struct lod_object, ldo_obj.do_lu);
}
static inline struct lod_object *lod_dt_obj(const struct dt_object *d)
static inline struct dt_object* lod_object_child(struct lod_object *o)
{
- return container_of0(lu_object_next(lod2lu_obj(o)),
- struct dt_object, do_lu);
+ return container_of(lu_object_next(lod2lu_obj(o)),
+ 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;
+ bool rc = false;
+
+ if (!dt_object_exists(dt_object_child(dt)))
+ return false;
+
+ mutex_lock(&lo->ldo_layout_mutex);
+
+ if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ rc = lo->ldo_dir_stripe_count != 0;
+ } else if (lo->ldo_is_foreign) {
+ rc = false;
+ } else {
+ 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_stripe_count > 0);
+ rc = true;
+ break;
+ }
+ }
+
+ mutex_unlock(&lo->ldo_layout_mutex);
+ return rc;
}
extern struct lu_context_key lod_thread_key;
return lname;
}
-#define lod_foreach_ost(__dev, index) \
- if ((__dev)->lod_osts_size > 0) \
- cfs_foreach_bit((__dev)->lod_ost_bitmap, (index))
+static inline struct lod_default_striping *
+lod_lds_buf_get(const struct lu_env *env)
+{
+ struct lod_thread_info *info = lod_env_info(env);
-#define lod_foreach_mdt(mdt_dev, index) \
- cfs_foreach_bit((mdt_dev)->lod_mdt_bitmap, (index))
+ info->lti_def_striping.lds_def_striping_set = 0;
+ info->lti_def_striping.lds_dir_def_striping_set = 0;
+ return &info->lti_def_striping;
+}
+
+static inline void lod_layout_get_pool(struct lod_layout_component *entries,
+ int count, char *pool, int len)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ if (entries[i].llc_pool != NULL) {
+ strlcpy(pool, entries[i].llc_pool, len);
+ break;
+ }
+ }
+}
+
+#define lod_foreach_mdt(lod, mdt) ltd_foreach_tgt(&(lod)->lod_mdt_descs, mdt)
+#define lod_foreach_ost(lod, ost) ltd_foreach_tgt(&(lod)->lod_ost_descs, ost)
/* lod_dev.c */
extern struct kmem_cache *lod_object_kmem;
int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod,
struct dt_device *dt);
void lod_sub_fini_llog(const struct lu_env *env,
- struct dt_device *dt, struct ptlrpc_thread *thread);
+ struct dt_device *dt, struct task_struct **taskp);
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);
char *osp, unsigned index, unsigned gen, int mdt_index,
char *type, int active);
int lod_del_device(const struct lu_env *env, struct lod_device *lod,
- struct lod_tgt_descs *ltd, char *osp, unsigned idx,
- unsigned gen, bool for_ost);
+ struct lod_tgt_descs *ltd, char *osp, unsigned int idx,
+ unsigned int gen);
+int validate_lod_and_idx(struct lod_device *lod, __u32 idx);
int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
- struct lod_tgt_descs *ltd, bool for_ost);
-int lod_load_striping_locked(const struct lu_env *env, struct lod_object *lo);
-int lod_load_striping(const struct lu_env *env, struct lod_object *lo);
+ struct lod_tgt_descs *ltd);
+int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
+int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
+ const struct lu_buf *buf);
+void lod_dom_stripesize_recalc(struct lod_device *d);
int lod_get_ea(const struct lu_env *env, struct lod_object *lo,
const char *name);
return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV);
}
+static inline void
+lod_comp_set_init(struct lod_layout_component *entry)
+{
+ entry->llc_flags |= LCME_FL_INIT;
+}
+
+static inline void
+lod_comp_unset_init(struct lod_layout_component *entry)
+{
+ entry->llc_flags &= ~LCME_FL_INIT;
+}
+
+static inline bool
+lod_comp_inited(const struct lod_layout_component *entry)
+{
+ return entry->llc_flags & LCME_FL_INIT;
+}
+
+/**
+ * For a PFL file, some of its component could be un-instantiated, so
+ * that their lov_ost_data_v1 array is not needed, we'd use this function
+ * to reduce the LOVEA buffer size.
+ *
+ * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to
+ * save the specified OST index list.
+ */
+static inline void
+lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp,
+ __u16 *stripe_count)
+{
+ /**
+ * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to
+ * lod_parse_striping()
+ */
+ if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0)
+ *stripe_count = 1;
+}
+
void lod_fix_desc(struct lov_desc *desc);
void lod_fix_desc_qos_maxage(__u32 *val);
void lod_fix_desc_pattern(__u32 *val);
void lod_fix_desc_stripe_count(__u32 *val);
void lod_fix_desc_stripe_size(__u64 *val);
+void lod_fix_lmv_desc_pattern(__u32 *val);
int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg);
int lod_pools_fini(struct lod_device *m);
int lod_parse_striping(const struct lu_env *env, struct lod_object *mo,
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);
-int lod_verify_striping(struct lod_device *d, const struct lu_buf *buf,
+ struct lov_ost_data_v1 *objs, int index);
+int lod_verify_striping(const struct lu_env *env, struct lod_device *d,
+ struct lod_object *lo, 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);
+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 mirror_cnt, int comp_cnt);
+int lod_fill_mirrors(struct lod_object *lo);
+
/* 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_ost_pool_extend(struct ost_pool *op, unsigned int min_count);
struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
void lod_pool_putref(struct pool_desc *pool);
-int lod_ost_pool_free(struct ost_pool *op);
int lod_pool_del(struct obd_device *obd, char *poolname);
-int lod_ost_pool_init(struct ost_pool *op, unsigned int count);
-extern struct cfs_hash_ops pool_hash_operations;
int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
int lod_pool_new(struct obd_device *obd, char *poolname);
int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname);
int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
+struct lod_obj_stripe_cb_data;
+typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env,
+ struct lod_object *lo, struct dt_object *dt,
+ struct thandle *th,
+ int comp_idx, int stripe_idx,
+ struct lod_obj_stripe_cb_data *data);
+typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env,
+ struct lod_object *lo, int comp_idx,
+ struct lod_obj_stripe_cb_data *data);
+typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env,
+ struct lod_object *lo, int comp_idx,
+ struct lod_obj_stripe_cb_data *data);
+struct lod_obj_stripe_cb_data {
+ union {
+ const struct lu_attr *locd_attr;
+ int locd_ost_index;
+ const struct lu_buf *locd_buf;
+ };
+ lod_obj_stripe_cb_t locd_stripe_cb;
+ lod_obj_comp_skip_cb_t locd_comp_skip_cb;
+ lod_obj_comp_cb_t locd_comp_cb;
+ bool locd_declare;
+};
+
/* lod_qos.c */
+int lod_mdt_alloc_qos(const struct lu_env *env, struct lod_object *lo,
+ struct dt_object **stripes, u32 stripe_idx,
+ u32 stripe_count);
+int lod_mdt_alloc_rr(const struct lu_env *env, struct lod_object *lo,
+ struct dt_object **stripes, u32 stripe_idx,
+ u32 stripe_count);
+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 lod_use_defined_striping(const struct lu_env *, struct lod_object *,
+ const struct lu_buf *);
+int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
+ const struct lu_buf *buf);
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 qos_add_tgt(struct lod_device*, struct lod_tgt_desc *);
-int qos_del_tgt(struct lod_device *, struct lod_tgt_desc *);
+ struct lu_attr *attr, struct thandle *th,
+ int comp_idx, __u64 reserve);
+__u16 lod_comp_entry_stripe_count(struct lod_object *lo,
+ int comp_idx, bool is_dir);
+__u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
+ int comp_idx, __u16 stripe_count, bool overstriping);
+void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod,
+ struct lu_tgt_descs *ltd);
/* lproc_lod.c */
int lod_procfs_init(struct lod_device *lod);
void lod_procfs_fini(struct lod_device *lod);
/* lod_object.c */
-extern struct dt_object_operations lod_obj_ops;
-extern struct lu_object_operations lod_lu_obj_ops;
+extern const struct dt_object_operations lod_obj_ops;
+extern const 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,
+int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt,
struct lu_attr *attr,
const struct lu_buf *lovea, struct thandle *th);
-int lod_striping_create(const struct lu_env *env, struct dt_object *dt,
+int lod_striped_create(const struct lu_env *env, struct dt_object *dt,
struct lu_attr *attr, struct dt_object_format *dof,
struct thandle *th);
-void lod_object_free_striping(const struct lu_env *env, struct lod_object *lo);
+int lod_alloc_foreign_lov(struct lod_object *lo, size_t size);
+void lod_free_foreign_lov(struct lod_object *lo);
+void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo);
+void lod_striping_free(const struct lu_env *env, struct lod_object *lo);
+
+int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo,
+ struct thandle *th,
+ struct lod_obj_stripe_cb_data *data);
+int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp,
+ struct lov_user_md_v3 *v3);
+void lod_adjust_stripe_size(struct lod_layout_component *comp,
+ __u32 def_stripe_size);
/* lod_sub_object.c */
struct thandle *lod_sub_get_thandle(const struct lu_env *env,
struct thandle *th,
const struct dt_object *sub_obj,
bool *record_update);
-int lod_sub_object_declare_create(const struct lu_env *env,
- struct dt_object *dt,
- struct lu_attr *attr,
- struct dt_allocation_hint *hint,
- struct dt_object_format *dof,
- struct thandle *th);
-int lod_sub_object_create(const struct lu_env *env, struct dt_object *dt,
- struct lu_attr *attr,
- struct dt_allocation_hint *hint,
- struct dt_object_format *dof,
- struct thandle *th);
-int lod_sub_object_declare_ref_add(const struct lu_env *env,
- struct dt_object *dt,
- struct thandle *th);
-int lod_sub_object_ref_add(const struct lu_env *env, struct dt_object *dt,
- struct thandle *th);
-int lod_sub_object_declare_ref_del(const struct lu_env *env,
- struct dt_object *dt,
- struct thandle *th);
-int lod_sub_object_ref_del(const struct lu_env *env, struct dt_object *dt,
- struct thandle *th);
-int lod_sub_object_declare_destroy(const struct lu_env *env,
- struct dt_object *dt,
- struct thandle *th);
-int lod_sub_object_destroy(const struct lu_env *env, struct dt_object *dt,
- struct thandle *th);
-int lod_sub_object_declare_insert(const struct lu_env *env,
- struct dt_object *dt,
- const struct dt_rec *rec,
- const struct dt_key *key,
- struct thandle *th);
-int lod_sub_object_index_insert(const struct lu_env *env, struct dt_object *dt,
- const struct dt_rec *rec,
- const struct dt_key *key, struct thandle *th,
- int ign);
-int lod_sub_object_declare_delete(const struct lu_env *env,
- struct dt_object *dt,
- const struct dt_key *key,
- struct thandle *th);
-int lod_sub_object_delete(const struct lu_env *env, struct dt_object *dt,
- const struct dt_key *name, struct thandle *th);
-int lod_sub_object_declare_xattr_set(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_buf *buf,
- const char *name, int fl,
- struct thandle *th);
-int lod_sub_object_xattr_set(const struct lu_env *env, struct dt_object *dt,
- const struct lu_buf *buf, const char *name, int fl,
- struct thandle *th);
-int lod_sub_object_declare_attr_set(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_attr *attr,
- struct thandle *th);
-int lod_sub_object_attr_set(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_attr *attr,
+int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt,
+ struct lu_attr *attr,
+ struct dt_allocation_hint *hint,
+ struct dt_object_format *dof, struct thandle *th);
+int lod_sub_create(const struct lu_env *env, struct dt_object *dt,
+ struct lu_attr *attr, struct dt_allocation_hint *hint,
+ struct dt_object_format *dof, struct thandle *th);
+int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
+ struct thandle *th);
+int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt,
+ struct thandle *th);
+int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
struct thandle *th);
-int lod_sub_object_declare_xattr_del(const struct lu_env *env,
- struct dt_object *dt,
- const char *name,
- struct thandle *th);
-int lod_sub_object_xattr_del(const struct lu_env *env,
- struct dt_object *dt,
- const char *name,
- struct thandle *th);
-int lod_sub_object_declare_write(const struct lu_env *env,
- struct dt_object *dt,
- const struct lu_buf *buf, loff_t pos,
- struct thandle *th);
-ssize_t lod_sub_object_write(const struct lu_env *env, struct dt_object *dt,
- const struct lu_buf *buf, loff_t *pos,
- struct thandle *th, int rq);
-int lod_sub_object_declare_punch(const struct lu_env *env,
- struct dt_object *dt,
- __u64 start, __u64 end,
- struct thandle *th);
-int lod_sub_object_punch(const struct lu_env *env, struct dt_object *dt,
- __u64 start, __u64 end, struct thandle *th);
+int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt,
+ struct thandle *th);
+int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt,
+ struct thandle *th);
+int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt,
+ struct thandle *th);
+int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt,
+ const struct dt_rec *rec, const struct dt_key *key,
+ struct thandle *th);
+int lod_sub_insert(const struct lu_env *env, struct dt_object *dt,
+ const struct dt_rec *rec, const struct dt_key *key,
+ struct thandle *th);
+int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt,
+ const struct dt_key *key, struct thandle *th);
+int lod_sub_delete(const struct lu_env *env, struct dt_object *dt,
+ const struct dt_key *name, struct thandle *th);
+int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_buf *buf, const char *name,
+ int fl, struct thandle *th);
+int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_buf *buf, const char *name, int fl,
+ struct thandle *th);
+int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_attr *attr, struct thandle *th);
+int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_attr *attr, struct thandle *th);
+int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
+ const char *name, struct thandle *th);
+int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt,
+ const char *name, struct thandle *th);
+int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_buf *buf, loff_t pos,
+ struct thandle *th);
+ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt,
+ const struct lu_buf *buf, loff_t *pos,
+ struct thandle *th);
+int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt,
+ __u64 start, __u64 end, struct thandle *th);
+int lod_sub_punch(const struct lu_env *env, struct dt_object *dt,
+ __u64 start, __u64 end, struct thandle *th);
int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod,
struct dt_device *dt, int index);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff