X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Finclude%2Flustre_log.h;h=e259ed31367ed39152cea8dd71770e32c6a5d9be;hp=52bc7be4514511139a1bcbb983c8647844d8da59;hb=3442db6faf685fbdbd092bdfdc8d273e4990a141;hpb=4dcd475716418d7b2093d917a8bffa9ad14e4465 diff --git a/lustre/include/lustre_log.h b/lustre/include/lustre_log.h index 52bc7be..e259ed3 100644 --- a/lustre/include/lustre_log.h +++ b/lustre/include/lustre_log.h @@ -15,11 +15,7 @@ * * 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 */ @@ -27,11 +23,10 @@ * 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, 2016, 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 * @@ -57,8 +52,9 @@ */ #include -#include #include +#include +#include #define LOG_NAME_LIMIT(logname, name) \ snprintf(logname, sizeof(logname), "LOGS/%s", name) @@ -82,37 +78,6 @@ struct cat_handle_data { 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 */ @@ -139,6 +104,9 @@ int llog_is_empty(const struct lu_env *env, struct llog_ctxt *ctxt, 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 @@ -186,16 +154,16 @@ int llog_cat_cancel_records(const struct lu_env *env, 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); +__u32 llog_cat_free_space(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, @@ -218,8 +186,10 @@ int llog_catalog_list(const struct lu_env *env, struct dt_device *d, 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); @@ -292,10 +262,15 @@ struct llog_operations { /* In-memory descriptor for a log object or log catalog */ struct llog_handle { struct rw_semaphore lgh_lock; - spinlock_t lgh_hdr_lock; /* protect lgh_hdr data */ + 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 */ @@ -308,6 +283,9 @@ struct llog_handle { void *private_data; struct llog_operations *lgh_logops; atomic_t lgh_refcount; + + int lgh_max_size; + __u32 lgh_stale:1; }; /* llog_osd.c */ @@ -342,6 +320,9 @@ struct llog_ctxt { struct dt_object *loc_dir; struct local_oid_storage *loc_los_nameless; struct local_oid_storage *loc_los_named; + /* llog chunk size, and llog record size can not be bigger than + * loc_chunk_size */ + __u32 loc_chunk_size; }; #define LLOG_PROC_BREAK 0x0001 @@ -463,24 +444,6 @@ static inline int llog_ctxt_null(struct obd_device *obd, int index) 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, @@ -540,6 +503,11 @@ static inline int llog_connect(struct llog_ctxt *ctxt, 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; @@ -560,6 +528,10 @@ int llog_declare_create(const struct lu_env *env, 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,