* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2016, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
u32 lsme_magic;
u32 lsme_flags;
u32 lsme_pattern;
+ u64 lsme_timestamp;
u32 lsme_stripe_size;
u16 lsme_stripe_count;
u16 lsme_layout_gen;
struct lov_oinfo *lsme_oinfo[];
};
+static inline bool lsme_is_dom(struct lov_stripe_md_entry *lsme)
+{
+ return (lov_pattern(lsme->lsme_pattern) == LOV_PATTERN_MDT);
+}
+
static inline void copy_lsm_entry(struct lov_stripe_md_entry *dst,
struct lov_stripe_md_entry *src)
{
spinlock_t lsm_lock;
pid_t lsm_lock_owner; /* debugging */
- /* maximum possible file size, might change as OSTs status changes,
- * e.g. disconnected, deactivated */
- loff_t lsm_maxbytes;
+ union {
+ /* maximum possible file size, might change as OSTs status
+ * changes, e.g. disconnected, deactivated
+ */
+ loff_t lsm_maxbytes;
+ /* size of full foreign LOV */
+ size_t lsm_foreign_size;
+ };
struct ost_id lsm_oi;
u32 lsm_magic;
u32 lsm_layout_gen;
- u32 lsm_entry_count;
+ u16 lsm_flags;
bool lsm_is_released;
+ u16 lsm_mirror_count;
+ u16 lsm_entry_count;
struct lov_stripe_md_entry *lsm_entries[];
};
+#define lsm_foreign(lsm) (lsm->lsm_entries[0])
+
static inline bool lsme_inited(const struct lov_stripe_md_entry *lsme)
{
return lsme->lsme_flags & LCME_FL_INIT;
static inline bool lsm_is_composite(__u32 magic)
{
- return !!(magic & LOV_MAGIC_COMP_V1);
+ return magic == LOV_MAGIC_COMP_V1;
}
static inline size_t lov_comp_md_size(const struct lov_stripe_md *lsm)
return lov_mds_md_size(lsm->lsm_entries[0]->lsme_stripe_count,
lsm->lsm_entries[0]->lsme_magic);
+ if (lsm->lsm_magic == LOV_MAGIC_FOREIGN)
+ return lsm->lsm_foreign_size;
+
LASSERT(lsm->lsm_magic == LOV_MAGIC_COMP_V1);
size = sizeof(struct lov_comp_md_v1);
extern const struct lsm_operations lsm_v1_ops;
extern const struct lsm_operations lsm_v3_ops;
extern const struct lsm_operations lsm_comp_md_v1_ops;
+extern const struct lsm_operations lsm_foreign_ops;
static inline const struct lsm_operations *lsm_op_find(int magic)
{
switch (magic) {
return &lsm_v3_ops;
case LOV_MAGIC_COMP_V1:
return &lsm_comp_md_v1_ops;
+ case LOV_MAGIC_FOREIGN:
+ return &lsm_foreign_ops;
default:
CERROR("unrecognized lsm_magic %08x\n", magic);
return NULL;
})
#elif BITS_PER_LONG == 32
# define lov_do_div64(n, base) ({ \
+ uint64_t __num = (n); \
uint64_t __rem; \
if ((sizeof(base) > 4) && (((base) & 0xffffffff00000000ULL) != 0)) { \
- int __remainder; \
- LASSERTF(!((base) & (LOV_MIN_STRIPE_SIZE - 1)), "64 bit lov " \
- "division %llu / %llu\n", (n), (uint64_t)(base)); \
- __remainder = (n) & (LOV_MIN_STRIPE_SIZE - 1); \
- (n) >>= LOV_MIN_STRIPE_BITS; \
- __rem = do_div(n, (base) >> LOV_MIN_STRIPE_BITS); \
+ int __remainder; \
+ LASSERTF(!((base) & (LOV_MIN_STRIPE_SIZE - 1)), \
+ "64 bit lov division %llu / %llu\n", \
+ __num, (uint64_t)(base)); \
+ __remainder = __num & (LOV_MIN_STRIPE_SIZE - 1); \
+ __num >>= LOV_MIN_STRIPE_BITS; \
+ __rem = do_div(__num, (base) >> LOV_MIN_STRIPE_BITS); \
__rem <<= LOV_MIN_STRIPE_BITS; \
__rem += __remainder; \
} else { \
- __rem = do_div(n, base); \
+ __rem = do_div(__num, base); \
} \
+ (n) = __num; \
__rem; \
})
#endif
struct pool_desc {
char pool_name[LOV_MAXPOOLNAME + 1];
- struct ost_pool pool_obds;
+ struct lu_tgt_pool pool_obds;
atomic_t pool_refcount;
- struct hlist_node pool_hash; /* access by poolname */
+ struct rhash_head pool_hash; /* access by poolname */
struct list_head pool_list; /* serial access */
+ struct rcu_head pool_rcu;
struct proc_dir_entry *pool_proc_entry;
struct obd_device *pool_lobd; /* owner */
};
+int lov_pool_hash_init(struct rhashtable *tbl);
+void lov_pool_hash_destroy(struct rhashtable *tbl);
+
struct lov_request {
struct obd_info rq_oi;
struct lov_request_set *rq_rqset;
int lov_fini_statfs_set(struct lov_request_set *set);
/* lov_obd.c */
+void lov_tgts_getref(struct obd_device *obd);
+void lov_tgts_putref(struct obd_device *obd);
void lov_stripe_lock(struct lov_stripe_md *md);
void lov_stripe_unlock(struct lov_stripe_md *md);
void lov_fix_desc(struct lov_desc *desc);
void lov_fix_desc_qos_maxage(__u32 *val);
__u16 lov_get_stripe_count(struct lov_obd *lov, __u32 magic,
__u16 stripe_count);
-int lov_connect_obd(struct obd_device *obd, __u32 index, int activate,
- struct obd_connect_data *data);
+int lov_connect_obd(struct obd_device *obd, u32 index, int activate,
+ struct obd_connect_data *data);
int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
int lov_process_config_base(struct obd_device *obd, struct lustre_cfg *lcfg,
- __u32 *indexp, int *genp);
-int lov_del_target(struct obd_device *obd, __u32 index,
- struct obd_uuid *uuidp, int gen);
+ u32 *indexp, int *genp);
+int lov_del_target(struct obd_device *obd, u32 index,
+ struct obd_uuid *uuidp, int gen);
/* lov_pack.c */
ssize_t lov_lsm_pack(const struct lov_stripe_md *lsm, void *buf,
void dump_lsm(unsigned int level, const struct lov_stripe_md *lsm);
/* lproc_lov.c */
-extern struct file_operations lov_proc_target_fops;
-#ifdef CONFIG_PROC_FS
-extern struct lprocfs_vars lprocfs_lov_obd_vars[];
-#endif
+int lov_tunables_init(struct obd_device *obd);
/* lov_cl.c */
extern struct lu_device_type lov_device_type;
-/* pools */
-extern struct cfs_hash_ops pool_hash_operations;
-/* ost_pool methods */
-int lov_ost_pool_init(struct ost_pool *op, unsigned int count);
-int lov_ost_pool_extend(struct ost_pool *op, unsigned int min_count);
-int lov_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count);
-int lov_ost_pool_remove(struct ost_pool *op, __u32 idx);
-int lov_ost_pool_free(struct ost_pool *op);
+#define LOV_MDC_TGT_MAX 256
+
+/* lu_tgt_pool methods */
+int lov_ost_pool_init(struct lu_tgt_pool *op, unsigned int count);
+int lov_ost_pool_extend(struct lu_tgt_pool *op, unsigned int min_count);
+int lov_ost_pool_add(struct lu_tgt_pool *op, __u32 idx, unsigned int min_count);
+int lov_ost_pool_remove(struct lu_tgt_pool *op, __u32 idx);
+int lov_ost_pool_free(struct lu_tgt_pool *op);
/* high level pool methods */
int lov_pool_new(struct obd_device *obd, char *poolname);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff