[linux-block.git] / include / linux / ceph / osdmap.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _FS_CEPH_OSDMAP_H
#define _FS_CEPH_OSDMAP_H

#include <linux/rbtree.h>
#include <linux/ceph/types.h>
#include <linux/ceph/decode.h>
#include <linux/ceph/ceph_fs.h>
#include <linux/crush/crush.h>

/*
 * The osd map describes the current membership of the osd cluster and
 * specifies the mapping of objects to placement groups and placement
 * groups to (sets of) osds.  That is, it completely specifies the
 * (desired) distribution of all data objects in the system at some
 * point in time.
 *
 * Each map version is identified by an epoch, which increases monotonically.
 *
 * The map can be updated either via an incremental map (diff) describing
 * the change between two successive epochs, or as a fully encoded map.
 */
struct ceph_pg {
	uint64_t pool;
	uint32_t seed;
};

#define CEPH_SPG_NOSHARD	-1

struct ceph_spg {
	struct ceph_pg pgid;
	s8 shard;
};

int ceph_pg_compare(const struct ceph_pg *lhs, const struct ceph_pg *rhs);
int ceph_spg_compare(const struct ceph_spg *lhs, const struct ceph_spg *rhs);

#define CEPH_POOL_FLAG_HASHPSPOOL	(1ULL << 0) /* hash pg seed and pool id
						       together */
#define CEPH_POOL_FLAG_FULL		(1ULL << 1) /* pool is full */

struct ceph_pg_pool_info {
	struct rb_node node;
	s64 id;
	u8 type; /* CEPH_POOL_TYPE_* */
	u8 size;
	u8 min_size;
	u8 crush_ruleset;
	u8 object_hash;
	u32 last_force_request_resend;
	u32 pg_num, pgp_num;
	int pg_num_mask, pgp_num_mask;
	s64 read_tier;
	s64 write_tier; /* wins for read+write ops */
	u64 flags; /* CEPH_POOL_FLAG_* */
	char *name;

	bool was_full;  /* for handle_one_map() */
};

static inline bool ceph_can_shift_osds(struct ceph_pg_pool_info *pool)
{
	switch (pool->type) {
	case CEPH_POOL_TYPE_REP:
		return true;
	case CEPH_POOL_TYPE_EC:
		return false;
	default:
		BUG();
	}
}

struct ceph_object_locator {
	s64 pool;
	struct ceph_string *pool_ns;
};

static inline void ceph_oloc_init(struct ceph_object_locator *oloc)
{
	oloc->pool = -1;
	oloc->pool_ns = NULL;
}

static inline bool ceph_oloc_empty(const struct ceph_object_locator *oloc)
{
	return oloc->pool == -1;
}

void ceph_oloc_copy(struct ceph_object_locator *dest,
		    const struct ceph_object_locator *src);
void ceph_oloc_destroy(struct ceph_object_locator *oloc);

/*
 * 51-char inline_name is long enough for all cephfs and all but one
 * rbd requests: <imgname> in "<imgname>.rbd"/"rbd_id.<imgname>" can be
 * arbitrarily long (~PAGE_SIZE).  It's done once during rbd map; all
 * other rbd requests fit into inline_name.
 *
 * Makes ceph_object_id 64 bytes on 64-bit.
 */
#define CEPH_OID_INLINE_LEN 52

/*
 * Both inline and external buffers have space for a NUL-terminator,
 * which is carried around.  It's not required though - RADOS object
 * names don't have to be NUL-terminated and may contain NULs.
 */
struct ceph_object_id {
	char *name;
	char inline_name[CEPH_OID_INLINE_LEN];
	int name_len;
};

static inline void ceph_oid_init(struct ceph_object_id *oid)
{
	oid->name = oid->inline_name;
	oid->name_len = 0;
}

#define CEPH_OID_INIT_ONSTACK(oid)					\
    ({ ceph_oid_init(&oid); oid; })
#define CEPH_DEFINE_OID_ONSTACK(oid)					\
	struct ceph_object_id oid = CEPH_OID_INIT_ONSTACK(oid)

static inline bool ceph_oid_empty(const struct ceph_object_id *oid)
{
	return oid->name == oid->inline_name && !oid->name_len;
}

void ceph_oid_copy(struct ceph_object_id *dest,
		   const struct ceph_object_id *src);
__printf(2, 3)
void ceph_oid_printf(struct ceph_object_id *oid, const char *fmt, ...);
__printf(3, 4)
int ceph_oid_aprintf(struct ceph_object_id *oid, gfp_t gfp,
		     const char *fmt, ...);
void ceph_oid_destroy(struct ceph_object_id *oid);

struct ceph_pg_mapping {
	struct rb_node node;
	struct ceph_pg pgid;

	union {
		struct {
			int len;
			int osds[];
		} pg_temp, pg_upmap;
		struct {
			int osd;
		} primary_temp;
		struct {
			int len;
			int from_to[][2];
		} pg_upmap_items;
	};
};

struct ceph_osdmap {
	struct ceph_fsid fsid;
	u32 epoch;
	struct ceph_timespec created, modified;

	u32 flags;         /* CEPH_OSDMAP_* */

	u32 max_osd;       /* size of osd_state, _offload, _addr arrays */
	u32 *osd_state;    /* CEPH_OSD_* */
	u32 *osd_weight;   /* 0 = failed, 0x10000 = 100% normal */
	struct ceph_entity_addr *osd_addr;

	struct rb_root pg_temp;
	struct rb_root primary_temp;

	/* remap (post-CRUSH, pre-up) */
	struct rb_root pg_upmap;	/* PG := raw set */
	struct rb_root pg_upmap_items;	/* from -> to within raw set */

	u32 *osd_primary_affinity;

	struct rb_root pg_pools;
	u32 pool_max;

	/* the CRUSH map specifies the mapping of placement groups to
	 * the list of osds that store+replicate them. */
	struct crush_map *crush;

	struct mutex crush_workspace_mutex;
	void *crush_workspace;
};

static inline bool ceph_osd_exists(struct ceph_osdmap *map, int osd)
{
	return osd >= 0 && osd < map->max_osd &&
	       (map->osd_state[osd] & CEPH_OSD_EXISTS);
}

static inline bool ceph_osd_is_up(struct ceph_osdmap *map, int osd)
{
	return ceph_osd_exists(map, osd) &&
	       (map->osd_state[osd] & CEPH_OSD_UP);
}

static inline bool ceph_osd_is_down(struct ceph_osdmap *map, int osd)
{
	return !ceph_osd_is_up(map, osd);
}

char *ceph_osdmap_state_str(char *str, int len, u32 state);
extern u32 ceph_get_primary_affinity(struct ceph_osdmap *map, int osd);

static inline struct ceph_entity_addr *ceph_osd_addr(struct ceph_osdmap *map,
						     int osd)
{
	if (osd >= map->max_osd)
		return NULL;
	return &map->osd_addr[osd];
}

#define CEPH_PGID_ENCODING_LEN		(1 + 8 + 4 + 4)

static inline int ceph_decode_pgid(void **p, void *end, struct ceph_pg *pgid)
{
	__u8 version;

	if (!ceph_has_room(p, end, CEPH_PGID_ENCODING_LEN)) {
		pr_warn("incomplete pg encoding\n");
		return -EINVAL;
	}
	version = ceph_decode_8(p);
	if (version > 1) {
		pr_warn("do not understand pg encoding %d > 1\n",
			(int)version);
		return -EINVAL;
	}

	pgid->pool = ceph_decode_64(p);
	pgid->seed = ceph_decode_32(p);
	*p += 4;	/* skip deprecated preferred value */

	return 0;
}

struct ceph_osdmap *ceph_osdmap_alloc(void);
extern struct ceph_osdmap *ceph_osdmap_decode(void **p, void *end);
struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
					     struct ceph_osdmap *map);
extern void ceph_osdmap_destroy(struct ceph_osdmap *map);

struct ceph_osds {
	int osds[CEPH_PG_MAX_SIZE];
	int size;
	int primary; /* id, NOT index */
};

static inline void ceph_osds_init(struct ceph_osds *set)
{
	set->size = 0;
	set->primary = -1;
}

void ceph_osds_copy(struct ceph_osds *dest, const struct ceph_osds *src);

bool ceph_pg_is_split(const struct ceph_pg *pgid, u32 old_pg_num,
		      u32 new_pg_num);
bool ceph_is_new_interval(const struct ceph_osds *old_acting,
			  const struct ceph_osds *new_acting,
			  const struct ceph_osds *old_up,
			  const struct ceph_osds *new_up,
			  int old_size,
			  int new_size,
			  int old_min_size,
			  int new_min_size,
			  u32 old_pg_num,
			  u32 new_pg_num,
			  bool old_sort_bitwise,
			  bool new_sort_bitwise,
			  bool old_recovery_deletes,
			  bool new_recovery_deletes,
			  const struct ceph_pg *pgid);
bool ceph_osds_changed(const struct ceph_osds *old_acting,
		       const struct ceph_osds *new_acting,
		       bool any_change);

/* calculate mapping of a file extent to an object */
extern int ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
					 u64 off, u64 len,
					 u64 *bno, u64 *oxoff, u64 *oxlen);

int __ceph_object_locator_to_pg(struct ceph_pg_pool_info *pi,
				const struct ceph_object_id *oid,
				const struct ceph_object_locator *oloc,
				struct ceph_pg *raw_pgid);
int ceph_object_locator_to_pg(struct ceph_osdmap *osdmap,
			      const struct ceph_object_id *oid,
			      const struct ceph_object_locator *oloc,
			      struct ceph_pg *raw_pgid);

void ceph_pg_to_up_acting_osds(struct ceph_osdmap *osdmap,
			       struct ceph_pg_pool_info *pi,
			       const struct ceph_pg *raw_pgid,
			       struct ceph_osds *up,
			       struct ceph_osds *acting);
bool ceph_pg_to_primary_shard(struct ceph_osdmap *osdmap,
			      struct ceph_pg_pool_info *pi,
			      const struct ceph_pg *raw_pgid,
			      struct ceph_spg *spgid);
int ceph_pg_to_acting_primary(struct ceph_osdmap *osdmap,
			      const struct ceph_pg *raw_pgid);

extern struct ceph_pg_pool_info *ceph_pg_pool_by_id(struct ceph_osdmap *map,
						    u64 id);

extern const char *ceph_pg_pool_name_by_id(struct ceph_osdmap *map, u64 id);
extern int ceph_pg_poolid_by_name(struct ceph_osdmap *map, const char *name);

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
f24e9980 SW	2	#ifndef _FS_CEPH_OSDMAP_H
	3	#define _FS_CEPH_OSDMAP_H
	4
	5	#include <linux/rbtree.h>
a1ce3928	6	#include <linux/ceph/types.h>
ef4859d6	7	#include <linux/ceph/decode.h>
a1ce3928	8	#include <linux/ceph/ceph_fs.h>
3d14c5d2	9	#include <linux/crush/crush.h>
f24e9980 SW	10
	11	/*
	12	* The osd map describes the current membership of the osd cluster and
	13	* specifies the mapping of objects to placement groups and placement
	14	* groups to (sets of) osds. That is, it completely specifies the
	15	* (desired) distribution of all data objects in the system at some
	16	* point in time.
	17	*
	18	* Each map version is identified by an epoch, which increases monotonically.
	19	*
	20	* The map can be updated either via an incremental map (diff) describing
	21	* the change between two successive epochs, or as a fully encoded map.
	22	*/
5b191d99 SW	23	struct ceph_pg {
	24	uint64_t pool;
	25	uint32_t seed;
	26	};
	27
dc98ff72 ID	28	#define CEPH_SPG_NOSHARD -1
	29
	30	struct ceph_spg {
	31	struct ceph_pg pgid;
	32	s8 shard;
	33	};
	34
f984cb76	35	int ceph_pg_compare(const struct ceph_pg lhs, const struct ceph_pg rhs);
a02a946d	36	int ceph_spg_compare(const struct ceph_spg lhs, const struct ceph_spg rhs);
f984cb76	37
04812acf ID	38	#define CEPH_POOL_FLAG_HASHPSPOOL (1ULL << 0) /* hash pg seed and pool id
04812acf ID	39	together */
63244fa1	40	#define CEPH_POOL_FLAG_FULL (1ULL << 1) /* pool is full */
83ca14fd	41
f24e9980	42	struct ceph_pg_pool_info {
4fc51be8	43	struct rb_node node;
4f6a7e5e	44	s64 id;
04812acf	45	u8 type; /* CEPH_POOL_TYPE_* */
4f6a7e5e	46	u8 size;
04812acf	47	u8 min_size;
4f6a7e5e SW	48	u8 crush_ruleset;
4f6a7e5e SW	49	u8 object_hash;
04812acf	50	u32 last_force_request_resend;
4f6a7e5e SW	51	u32 pg_num, pgp_num;
4f6a7e5e SW	52	int pg_num_mask, pgp_num_mask;
17a13e40 ID	53	s64 read_tier;
17a13e40 ID	54	s64 write_tier; /* wins for read+write ops */
04812acf	55	u64 flags; /* CEPH_POOL_FLAG_* */
2844a76a	56	char *name;
42c1b124 ID	57
42c1b124 ID	58	bool was_full; /* for handle_one_map() */
f24e9980 SW	59	};
f24e9980 SW	60
2abebdbc ID	61	static inline bool ceph_can_shift_osds(struct ceph_pg_pool_info *pool)
	62	{
	63	switch (pool->type) {
	64	case CEPH_POOL_TYPE_REP:
	65	return true;
	66	case CEPH_POOL_TYPE_EC:
	67	return false;
	68	default:
d24cdcd3	69	BUG();
2abebdbc ID	70	}
	71	}
	72
4f6a7e5e	73	struct ceph_object_locator {
22116525	74	s64 pool;
30c156d9	75	struct ceph_string *pool_ns;
4f6a7e5e SW	76	};
4f6a7e5e SW	77
63244fa1 ID	78	static inline void ceph_oloc_init(struct ceph_object_locator *oloc)
	79	{
	80	oloc->pool = -1;
30c156d9	81	oloc->pool_ns = NULL;
63244fa1 ID	82	}
	83
	84	static inline bool ceph_oloc_empty(const struct ceph_object_locator *oloc)
	85	{
	86	return oloc->pool == -1;
	87	}
	88
30c156d9 YZ	89	void ceph_oloc_copy(struct ceph_object_locator *dest,
	90	const struct ceph_object_locator *src);
	91	void ceph_oloc_destroy(struct ceph_object_locator *oloc);
63244fa1	92
d30291b9 ID	93	/*
	94	* 51-char inline_name is long enough for all cephfs and all but one
	95	* rbd requests: <imgname> in "<imgname>.rbd"/"rbd_id.<imgname>" can be
	96	* arbitrarily long (~PAGE_SIZE). It's done once during rbd map; all
	97	* other rbd requests fit into inline_name.
	98	*
	99	* Makes ceph_object_id 64 bytes on 64-bit.
	100	*/
	101	#define CEPH_OID_INLINE_LEN 52
	102
	103	/*
	104	* Both inline and external buffers have space for a NUL-terminator,
	105	* which is carried around. It's not required though - RADOS object
	106	* names don't have to be NUL-terminated and may contain NULs.
	107	*/
4295f221	108	struct ceph_object_id {
d30291b9 ID	109	char *name;
d30291b9 ID	110	char inline_name[CEPH_OID_INLINE_LEN];
4295f221 ID	111	int name_len;
	112	};
	113
d30291b9 ID	114	static inline void ceph_oid_init(struct ceph_object_id *oid)
	115	{
	116	oid->name = oid->inline_name;
	117	oid->name_len = 0;
	118	}
	119
281dbe5d ID	120	#define CEPH_OID_INIT_ONSTACK(oid) \
	121	({ ceph_oid_init(&oid); oid; })
	122	#define CEPH_DEFINE_OID_ONSTACK(oid) \
	123	struct ceph_object_id oid = CEPH_OID_INIT_ONSTACK(oid)
	124
d30291b9 ID	125	static inline bool ceph_oid_empty(const struct ceph_object_id *oid)
	126	{
	127	return oid->name == oid->inline_name && !oid->name_len;
	128	}
	129
	130	void ceph_oid_copy(struct ceph_object_id *dest,
	131	const struct ceph_object_id *src);
	132	__printf(2, 3)
	133	void ceph_oid_printf(struct ceph_object_id oid, const char fmt, ...);
	134	__printf(3, 4)
	135	int ceph_oid_aprintf(struct ceph_object_id *oid, gfp_t gfp,
	136	const char *fmt, ...);
	137	void ceph_oid_destroy(struct ceph_object_id *oid);
	138
f24e9980 SW	139	struct ceph_pg_mapping {
f24e9980 SW	140	struct rb_node node;
5b191d99	141	struct ceph_pg pgid;
35a935d7 ID	142
	143	union {
	144	struct {
	145	int len;
	146	int osds[];
6f428df4	147	} pg_temp, pg_upmap;
9686f94c ID	148	struct {
	149	int osd;
	150	} primary_temp;
6f428df4 ID	151	struct {
	152	int len;
	153	int from_to[][2];
	154	} pg_upmap_items;
35a935d7	155	};
f24e9980 SW	156	};
	157
	158	struct ceph_osdmap {
	159	struct ceph_fsid fsid;
	160	u32 epoch;
f24e9980 SW	161	struct ceph_timespec created, modified;
	162
	163	u32 flags; /* CEPH_OSDMAP_* */
	164
	165	u32 max_osd; /* size of osd_state, _offload, _addr arrays */
0bb05da2	166	u32 osd_state; / CEPH_OSD_* */
f24e9980 SW	167	u32 osd_weight; / 0 = failed, 0x10000 = 100% normal */
	168	struct ceph_entity_addr *osd_addr;
	169
	170	struct rb_root pg_temp;
9686f94c ID	171	struct rb_root primary_temp;
9686f94c ID	172
6f428df4 ID	173	/* remap (post-CRUSH, pre-up) */
	174	struct rb_root pg_upmap; /* PG := raw set */
	175	struct rb_root pg_upmap_items; /* from -> to within raw set */
	176
2cfa34f2 ID	177	u32 *osd_primary_affinity;
2cfa34f2 ID	178
4fc51be8 SW	179	struct rb_root pg_pools;
4fc51be8 SW	180	u32 pool_max;
f24e9980 SW	181
	182	/* the CRUSH map specifies the mapping of placement groups to
	183	* the list of osds that store+replicate them. */
	184	struct crush_map *crush;
9d521470	185
743efcff	186	struct mutex crush_workspace_mutex;
66a0e2d5	187	void *crush_workspace;
f24e9980 SW	188	};
f24e9980 SW	189
3b33f692	190	static inline bool ceph_osd_exists(struct ceph_osdmap *map, int osd)
246138fa ID	191	{
	192	return osd >= 0 && osd < map->max_osd &&
	193	(map->osd_state[osd] & CEPH_OSD_EXISTS);
	194	}
	195
3b33f692	196	static inline bool ceph_osd_is_up(struct ceph_osdmap *map, int osd)
f24e9980	197	{
246138fa ID	198	return ceph_osd_exists(map, osd) &&
	199	(map->osd_state[osd] & CEPH_OSD_UP);
	200	}
	201
3b33f692	202	static inline bool ceph_osd_is_down(struct ceph_osdmap *map, int osd)
246138fa ID	203	{
246138fa ID	204	return !ceph_osd_is_up(map, osd);
f24e9980 SW	205	}
f24e9980 SW	206
0bb05da2	207	char ceph_osdmap_state_str(char str, int len, u32 state);
2cfa34f2	208	extern u32 ceph_get_primary_affinity(struct ceph_osdmap *map, int osd);
f24e9980 SW	209
	210	static inline struct ceph_entity_addr ceph_osd_addr(struct ceph_osdmap map,
	211	int osd)
	212	{
	213	if (osd >= map->max_osd)
	214	return NULL;
	215	return &map->osd_addr[osd];
	216	}
	217
8cb441c0 ID	218	#define CEPH_PGID_ENCODING_LEN (1 + 8 + 4 + 4)
8cb441c0 ID	219
ef4859d6 AE	220	static inline int ceph_decode_pgid(void *p, void end, struct ceph_pg *pgid)
	221	{
	222	__u8 version;
	223
8cb441c0	224	if (!ceph_has_room(p, end, CEPH_PGID_ENCODING_LEN)) {
3ef650d3	225	pr_warn("incomplete pg encoding\n");
ef4859d6 AE	226	return -EINVAL;
	227	}
	228	version = ceph_decode_8(p);
	229	if (version > 1) {
3ef650d3	230	pr_warn("do not understand pg encoding %d > 1\n",
ef4859d6 AE	231	(int)version);
	232	return -EINVAL;
	233	}
	234
	235	pgid->pool = ceph_decode_64(p);
	236	pgid->seed = ceph_decode_32(p);
	237	p += 4; / skip deprecated preferred value */
	238
	239	return 0;
	240	}
	241
e5253a7b	242	struct ceph_osdmap *ceph_osdmap_alloc(void);
a2505d63	243	extern struct ceph_osdmap ceph_osdmap_decode(void p, void end);
0c0a8de1 ID	244	struct ceph_osdmap osdmap_apply_incremental(void p, void end,
0c0a8de1 ID	245	struct ceph_osdmap *map);
f24e9980 SW	246	extern void ceph_osdmap_destroy(struct ceph_osdmap *map);
f24e9980 SW	247
6f3bfd45 ID	248	struct ceph_osds {
	249	int osds[CEPH_PG_MAX_SIZE];
	250	int size;
	251	int primary; /* id, NOT index */
	252	};
	253
	254	static inline void ceph_osds_init(struct ceph_osds *set)
	255	{
	256	set->size = 0;
	257	set->primary = -1;
	258	}
	259
	260	void ceph_osds_copy(struct ceph_osds dest, const struct ceph_osds src);
	261
7de030d6 ID	262	bool ceph_pg_is_split(const struct ceph_pg *pgid, u32 old_pg_num,
7de030d6 ID	263	u32 new_pg_num);
63244fa1 ID	264	bool ceph_is_new_interval(const struct ceph_osds *old_acting,
	265	const struct ceph_osds *new_acting,
	266	const struct ceph_osds *old_up,
	267	const struct ceph_osds *new_up,
	268	int old_size,
	269	int new_size,
	270	int old_min_size,
	271	int new_min_size,
	272	u32 old_pg_num,
	273	u32 new_pg_num,
	274	bool old_sort_bitwise,
	275	bool new_sort_bitwise,
ae78dd81 ID	276	bool old_recovery_deletes,
ae78dd81 ID	277	bool new_recovery_deletes,
63244fa1 ID	278	const struct ceph_pg *pgid);
	279	bool ceph_osds_changed(const struct ceph_osds *old_acting,
	280	const struct ceph_osds *new_acting,
	281	bool any_change);
	282
f24e9980	283	/* calculate mapping of a file extent to an object */
d63b77f4	284	extern int ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
e8afad65	285	u64 off, u64 len,
d63b77f4	286	u64 bno, u64 oxoff, u64 *oxlen);
f24e9980	287
df28152d ID	288	int __ceph_object_locator_to_pg(struct ceph_pg_pool_info *pi,
	289	const struct ceph_object_id *oid,
	290	const struct ceph_object_locator *oloc,
	291	struct ceph_pg *raw_pgid);
d9591f5e	292	int ceph_object_locator_to_pg(struct ceph_osdmap *osdmap,
df28152d ID	293	const struct ceph_object_id *oid,
df28152d ID	294	const struct ceph_object_locator *oloc,
d9591f5e	295	struct ceph_pg *raw_pgid);
7c13cb64	296
6f3bfd45	297	void ceph_pg_to_up_acting_osds(struct ceph_osdmap *osdmap,
df28152d	298	struct ceph_pg_pool_info *pi,
6f3bfd45 ID	299	const struct ceph_pg *raw_pgid,
	300	struct ceph_osds *up,
	301	struct ceph_osds *acting);
dc98ff72	302	bool ceph_pg_to_primary_shard(struct ceph_osdmap *osdmap,
df28152d	303	struct ceph_pg_pool_info *pi,
dc98ff72 ID	304	const struct ceph_pg *raw_pgid,
dc98ff72 ID	305	struct ceph_spg *spgid);
f81f1633 ID	306	int ceph_pg_to_acting_primary(struct ceph_osdmap *osdmap,
f81f1633 ID	307	const struct ceph_pg *raw_pgid);
f24e9980	308
ce7f6a27 ID	309	extern struct ceph_pg_pool_info ceph_pg_pool_by_id(struct ceph_osdmap map,
	310	u64 id);
	311
72afc71f	312	extern const char ceph_pg_pool_name_by_id(struct ceph_osdmap map, u64 id);
7669a2c9 YS	313	extern int ceph_pg_poolid_by_name(struct ceph_osdmap map, const char name);
7669a2c9 YS	314
f24e9980	315	#endif