* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define LOV_INTERNAL_H
#include <obd_class.h>
-#include <obd_lov.h>
#include <lustre/lustre_user.h>
+/* lov_do_div64(a, b) returns a % b, and a = a / b.
+ * The 32-bit code is LOV-specific due to knowing about stripe limits in
+ * order to reduce the divisor to a 32-bit number. If the divisor is
+ * already a 32-bit value the compiler handles this directly. */
+#if BITS_PER_LONG == 64
+# define lov_do_div64(n, base) ({ \
+ uint64_t __base = (base); \
+ uint64_t __rem; \
+ __rem = ((uint64_t)(n)) % __base; \
+ (n) = ((uint64_t)(n)) / __base; \
+ __rem; \
+})
+#elif BITS_PER_LONG == 32
+# define lov_do_div64(n, base) ({ \
+ 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); \
+ __rem <<= LOV_MIN_STRIPE_BITS; \
+ __rem += __remainder; \
+ } else { \
+ __rem = do_div(n, base); \
+ } \
+ __rem; \
+})
+#endif
+
#define pool_tgt_size(p) ((p)->pool_obds.op_size)
#define pool_tgt_count(p) ((p)->pool_obds.op_count)
#define pool_tgt_array(p) ((p)->pool_obds.op_array)
char pool_name[LOV_MAXPOOLNAME + 1];
struct ost_pool pool_obds;
atomic_t pool_refcount;
- cfs_hlist_node_t pool_hash; /* access by poolname */
+ struct hlist_node pool_hash; /* access by poolname */
struct list_head pool_list; /* serial access */
struct proc_dir_entry *pool_proc_entry;
struct obd_device *pool_lobd; /* owner */
struct lov_request {
struct obd_info rq_oi;
struct lov_request_set *rq_rqset;
- cfs_list_t rq_link;
+ struct list_head rq_link;
int rq_idx; /* index in lov->tgts array */
int rq_stripe; /* stripe number */
int rq_complete;
struct lov_request_set {
struct obd_info *set_oi;
- cfs_atomic_t set_refcount;
+ atomic_t set_refcount;
struct obd_export *set_exp;
/* XXX: There is @set_exp already, however obd_statfs gets
obd_device only. */
struct obd_device *set_obd;
int set_count;
- cfs_atomic_t set_completes;
- cfs_atomic_t set_success;
- cfs_atomic_t set_finish_checked;
+ atomic_t set_completes;
+ atomic_t set_success;
+ atomic_t set_finish_checked;
struct llog_cookie *set_cookies;
- cfs_list_t set_list;
+ struct list_head set_list;
wait_queue_head_t set_waitq;
};
extern struct kmem_cache *lov_oinfo_slab;
+extern struct lu_kmem_descr lov_caches[];
+
void lov_finish_set(struct lov_request_set *set);
static inline void lov_put_reqset(struct lov_request_set *set)
{
- if (cfs_atomic_dec_and_test(&set->set_refcount))
- lov_finish_set(set);
+ if (atomic_dec_and_test(&set->set_refcount))
+ lov_finish_set(set);
}
#define lov_uuid2str(lv, index) \
(char *)((lv)->lov_tgts[index]->ltd_uuid.uuid)
/* lov_merge.c */
-void lov_merge_attrs(struct obdo *tgt, struct obdo *src, obd_valid valid,
- struct lov_stripe_md *lsm, int stripeno, int *set);
-int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
- obd_off size, int shrink);
+void lov_merge_attrs(struct obdo *tgt, struct obdo *src, u64 valid,
+ struct lov_stripe_md *lsm, int stripeno, int *set);
int lov_merge_lvb_kms(struct lov_stripe_md *lsm,
struct ost_lvb *lvb, __u64 *kms_place);
/* lov_offset.c */
-obd_size lov_stripe_size(struct lov_stripe_md *lsm, obd_size ost_size,
- int stripeno);
-int lov_stripe_offset(struct lov_stripe_md *lsm, obd_off lov_off,
- int stripeno, obd_off *obd_off);
-obd_off lov_size_to_stripe(struct lov_stripe_md *lsm, obd_off file_size,
- int stripeno);
+u64 lov_stripe_size(struct lov_stripe_md *lsm, u64 ost_size, int stripeno);
+int lov_stripe_offset(struct lov_stripe_md *lsm, loff_t lov_off, int stripeno,
+ loff_t *obd_off);
+loff_t lov_size_to_stripe(struct lov_stripe_md *lsm, u64 file_size,
+ int stripeno);
int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno,
- obd_off start, obd_off end,
- obd_off *obd_start, obd_off *obd_end);
-int lov_stripe_number(struct lov_stripe_md *lsm, obd_off lov_off);
+ loff_t start, loff_t end,
+ loff_t *obd_start, loff_t *obd_end);
+int lov_stripe_number(struct lov_stripe_md *lsm, loff_t lov_off);
+pgoff_t lov_stripe_pgoff(struct lov_stripe_md *lsm, pgoff_t stripe_index,
+ int stripe);
/* lov_request.c */
void lov_set_add_req(struct lov_request *req, struct lov_request_set *set);
int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
struct lov_request_set **reqset);
int lov_fini_getattr_set(struct lov_request_set *set);
-int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
- struct obdo *src_oa, struct lov_stripe_md *lsm,
- struct obd_trans_info *oti,
- struct lov_request_set **reqset);
-int lov_fini_destroy_set(struct lov_request_set *set);
int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
struct obd_trans_info *oti,
struct lov_request_set **reqset);
__u32 *indexp, int *genp);
int lov_del_target(struct obd_device *obd, __u32 index,
struct obd_uuid *uuidp, int gen);
+int lov_getattr_interpret(struct ptlrpc_request_set *rqset, void *data, int rc);
/* lov_pack.c */
int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmm,
struct lov_stripe_md *lsm);
int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
struct lov_mds_md *lmm, int lmm_bytes);
-int lov_getstripe(struct obd_export *exp,
- struct lov_stripe_md *lsm, struct lov_user_md *lump);
int lov_alloc_memmd(struct lov_stripe_md **lsmp, __u16 stripe_count,
int pattern, int magic);
int lov_free_memmd(struct lov_stripe_md **lsmp);
/* lov_ea.c */
struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size);
void lsm_free_plain(struct lov_stripe_md *lsm);
+void dump_lsm(unsigned int level, const struct lov_stripe_md *lsm);
/* lproc_lov.c */
extern struct file_operations lov_proc_target_fops;
-#ifdef LPROCFS
-extern struct lprocfs_seq_vars lprocfs_lov_obd_vars[];
+#ifdef CONFIG_PROC_FS
+extern struct lprocfs_vars lprocfs_lov_obd_vars[];
#endif
/* lov_cl.c */
int lov_pool_add(struct obd_device *obd, char *poolname, char *ostname);
int lov_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
void lov_dump_pool(int level, struct pool_desc *pool);
-void lov_pool_putref(struct pool_desc *pool);
static inline struct lov_stripe_md *lsm_addref(struct lov_stripe_md *lsm)
{
- LASSERT(cfs_atomic_read(&lsm->lsm_refc) > 0);
- cfs_atomic_inc(&lsm->lsm_refc);
+ LASSERT(atomic_read(&lsm->lsm_refc) > 0);
+ atomic_inc(&lsm->lsm_refc);
return lsm;
}
+static inline bool lov_oinfo_is_dummy(const struct lov_oinfo *loi)
+{
+ if (unlikely(loi->loi_oi.oi.oi_id == 0 &&
+ loi->loi_oi.oi.oi_seq == 0 &&
+ loi->loi_ost_idx == 0 &&
+ loi->loi_ost_gen == 0))
+ return true;
+
+ return false;
+}
+
+static inline struct obd_device *lov2obd(const struct lov_obd *lov)
+{
+ return container_of0(lov, struct obd_device, u.lov);
+}
+
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff