*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2014, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lustre/include/lustre_log.h
*
#include <obd_class.h>
#include <lustre/lustre_idl.h>
#include <dt_object.h>
+#include <lustre_log_user.h>
#define LOG_NAME_LIMIT(logname, name) \
snprintf(logname, sizeof(logname), "LOGS/%s", name)
struct llog_handle *chd_next_log; /* llog to be used next */
};
-static inline void logid_to_fid(struct llog_logid *id, struct lu_fid *fid)
-{
- /* For compatibility purposes we identify pre-OSD (~< 2.3.51 MDS)
- * logid's by non-zero ogen (inode generation) and convert them
- * into IGIF */
- if (id->lgl_ogen == 0) {
- fid->f_seq = id->lgl_oi.oi.oi_seq;
- fid->f_oid = id->lgl_oi.oi.oi_id;
- fid->f_ver = 0;
- } else {
- lu_igif_build(fid, id->lgl_oi.oi.oi_id, id->lgl_ogen);
- }
-}
-
-static inline void fid_to_logid(struct lu_fid *fid, struct llog_logid *id)
-{
- id->lgl_oi.oi.oi_seq = fid->f_seq;
- id->lgl_oi.oi.oi_id = fid->f_oid;
- id->lgl_ogen = 0;
-}
-
-static inline void logid_set_id(struct llog_logid *log_id, __u64 id)
-{
- log_id->lgl_oi.oi.oi_id = id;
-}
-
-static inline __u64 logid_id(struct llog_logid *log_id)
-{
- return log_id->lgl_oi.oi.oi_id;
-}
-
struct llog_handle;
/* llog.c - general API */
int llog_backup(const struct lu_env *env, struct obd_device *obd,
struct llog_ctxt *ctxt, struct llog_ctxt *bak_ctxt,
char *name, char *backup);
+int llog_read_header(const struct lu_env *env, struct llog_handle *handle,
+ const struct obd_uuid *uuid);
+__u64 llog_size(const struct lu_env *env, struct llog_handle *llh);
/* llog_process flags */
#define LLOG_FLAG_NODEAMON 0x0001
struct llog_handle *cathandle, int count,
struct llog_cookie *cookies);
int llog_cat_process_or_fork(const struct lu_env *env,
- struct llog_handle *cat_llh, llog_cb_t cb,
- void *data, int startcat, int startidx, bool fork);
+ struct llog_handle *cat_llh, llog_cb_t cat_cb,
+ llog_cb_t cb, void *data, int startcat,
+ int startidx, bool fork);
int llog_cat_process(const struct lu_env *env, struct llog_handle *cat_llh,
llog_cb_t cb, void *data, int startcat, int startidx);
+__u64 llog_cat_size(const struct lu_env *env, struct llog_handle *cat_llh);
int llog_cat_reverse_process(const struct lu_env *env,
struct llog_handle *cat_llh, llog_cb_t cb,
void *data);
-int llog_cat_init_and_process(const struct lu_env *env,
- struct llog_handle *llh);
-
/* llog_obd.c */
int llog_setup(const struct lu_env *env, struct obd_device *obd,
struct obd_llog_group *olg, int index,
int llog_initiator_connect(struct llog_ctxt *ctxt);
struct llog_operations {
+ int (*lop_declare_destroy)(const struct lu_env *env,
+ struct llog_handle *handle, struct thandle *th);
int (*lop_destroy)(const struct lu_env *env,
- struct llog_handle *handle);
+ struct llog_handle *handle, struct thandle *th);
int (*lop_next_block)(const struct lu_env *env, struct llog_handle *h,
int *curr_idx, int next_idx, __u64 *offset,
void *buf, int len);
struct rw_semaphore lgh_lock;
struct mutex lgh_hdr_mutex; /* protect lgh_hdr data */
struct llog_logid lgh_id; /* id of this log */
- struct llog_log_hdr *lgh_hdr;
+ struct llog_log_hdr *lgh_hdr; /* may be vmalloc'd */
size_t lgh_hdr_size;
struct dt_object *lgh_obj;
+ /* For a Catalog, is the last/newest used index for a plain slot.
+ * Used in conjunction with llh_cat_idx to handle Catalog wrap-around
+ * case, after it will have reached LLOG_HDR_BITMAP_SIZE, llh_cat_idx
+ * will become its upper limit */
int lgh_last_idx;
int lgh_cur_idx; /* used during llog_process */
__u64 lgh_cur_offset; /* used during llog_process */
+ /* used during llog_osd_write_rec */
+ __u64 lgh_write_offset;
+ int lgh_max_size;
struct llog_ctxt *lgh_ctxt;
union {
struct plain_handle_data phd;
void *private_data;
struct llog_operations *lgh_logops;
atomic_t lgh_refcount;
+
+ __u32 lgh_stale:1;
};
/* llog_osd.c */
return (llog_group_ctxt_null(&obd->obd_olg, index));
}
-static inline int llog_destroy(const struct lu_env *env,
- struct llog_handle *handle)
-{
- struct llog_operations *lop;
- int rc;
-
- ENTRY;
-
- rc = llog_handle2ops(handle, &lop);
- if (rc)
- RETURN(rc);
- if (lop->lop_destroy == NULL)
- RETURN(-EOPNOTSUPP);
-
- rc = lop->lop_destroy(env, handle);
- RETURN(rc);
-}
-
static inline int llog_next_block(const struct lu_env *env,
struct llog_handle *loghandle, int *cur_idx,
int next_idx, __u64 *cur_offset, void *buf,
RETURN(rc);
}
+static inline int llog_is_full(struct llog_handle *llh)
+{
+ return llh->lgh_last_idx >= LLOG_HDR_BITMAP_SIZE(llh->lgh_hdr) - 1;
+}
+
struct llog_cfg_rec {
struct llog_rec_hdr lcr_hdr;
struct lustre_cfg lcr_cfg;
struct llog_handle *loghandle, struct thandle *th);
int llog_create(const struct lu_env *env, struct llog_handle *handle,
struct thandle *th);
+int llog_trans_destroy(const struct lu_env *env, struct llog_handle *handle,
+ struct thandle *th);
+int llog_destroy(const struct lu_env *env, struct llog_handle *handle);
+
int llog_declare_write_rec(const struct lu_env *env,
struct llog_handle *handle,
struct llog_rec_hdr *rec, int idx,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff