X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Finclude%2Flustre_log.h;h=e259ed31367ed39152cea8dd71770e32c6a5d9be;hp=24a7c47bdf89b668ceabd483670e3fbfb7cdc59a;hb=3442db6faf685fbdbd092bdfdc8d273e4990a141;hpb=9fb46705ae86aa2c0ac29427f0ff24f923560eb7 diff --git a/lustre/include/lustre_log.h b/lustre/include/lustre_log.h index 24a7c47..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, Whamcloud, Inc. + * 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 * @@ -56,20 +51,10 @@ * @{ */ -#if defined(__linux__) -#include -#elif defined(__APPLE__) -#include -#elif defined(__WINNT__) -#include -#else -#error Unsupported operating system. -#endif - #include -#include -#include #include +#include +#include #define LOG_NAME_LIMIT(logname, name) \ snprintf(logname, sizeof(logname), "LOGS/%s", name) @@ -81,43 +66,25 @@ enum llog_open_param { }; struct plain_handle_data { - cfs_list_t phd_entry; - struct llog_handle *phd_cat_handle; - struct llog_cookie phd_cookie; /* cookie of this log in its cat */ + struct list_head phd_entry; + struct llog_handle *phd_cat_handle; + /* cookie of this log in its cat */ + struct llog_cookie phd_cookie; }; struct cat_handle_data { - cfs_list_t chd_head; - struct llog_handle *chd_current_log; /* currently open log */ - struct llog_handle *chd_next_log; /* llog to be used next */ + struct list_head chd_head; + struct llog_handle *chd_current_log;/* currently open log */ + 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_oseq; - fid->f_oid = id->lgl_oid; - fid->f_ver = 0; - } else { - lu_igif_build(fid, id->lgl_oid, id->lgl_ogen); - } -} - -static inline void fid_to_logid(struct lu_fid *fid, struct llog_logid *id) -{ - id->lgl_oseq = fid->f_seq; - id->lgl_oid = fid->f_oid; - id->lgl_ogen = 0; -} - struct llog_handle; /* llog.c - general API */ int llog_init_handle(const struct lu_env *env, struct llog_handle *handle, int flags, struct obd_uuid *uuid); +int llog_copy_handler(const struct lu_env *env, struct llog_handle *llh, + struct llog_rec_hdr *rec, void *data); int llog_process(const struct lu_env *env, struct llog_handle *loghandle, llog_cb_t cb, void *data, void *catdata); int llog_process_or_fork(const struct lu_env *env, @@ -132,7 +99,14 @@ int llog_open(const struct lu_env *env, struct llog_ctxt *ctxt, struct llog_handle **lgh, struct llog_logid *logid, char *name, enum llog_open_param open_param); int llog_close(const struct lu_env *env, struct llog_handle *cathandle); -int llog_get_size(struct llog_handle *loghandle); +int llog_is_empty(const struct lu_env *env, struct llog_ctxt *ctxt, + char *name); +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 @@ -167,46 +141,29 @@ struct llog_process_cat_data { int lpcd_last_idx; }; -struct llog_process_cat_args { - /** - * Llog context used in recovery thread on OST (recov_thread.c) - */ - struct llog_ctxt *lpca_ctxt; - /** - * Llog callback used in recovery thread on OST (recov_thread.c) - */ - void *lpca_cb; - /** - * Data pointer for llog callback. - */ - void *lpca_arg; -}; - int llog_cat_close(const struct lu_env *env, struct llog_handle *cathandle); int llog_cat_add_rec(const struct lu_env *env, struct llog_handle *cathandle, struct llog_rec_hdr *rec, struct llog_cookie *reccookie, - void *buf, struct thandle *th); + struct thandle *th); int llog_cat_declare_add_rec(const struct lu_env *env, struct llog_handle *cathandle, struct llog_rec_hdr *rec, struct thandle *th); int llog_cat_add(const struct lu_env *env, struct llog_handle *cathandle, - struct llog_rec_hdr *rec, struct llog_cookie *reccookie, - void *buf); + struct llog_rec_hdr *rec, struct llog_cookie *reccookie); 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); -int llog_cat_process_thread(void *data); +__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, @@ -214,48 +171,25 @@ int llog_setup(const struct lu_env *env, struct obd_device *obd, int __llog_ctxt_put(const struct lu_env *env, struct llog_ctxt *ctxt); int llog_cleanup(const struct lu_env *env, struct llog_ctxt *); int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp, int flags); -int llog_obd_add(const struct lu_env *env, struct llog_ctxt *ctxt, - struct llog_rec_hdr *rec, struct lov_stripe_md *lsm, - struct llog_cookie *logcookies, int numcookies); int llog_cancel(const struct lu_env *env, struct llog_ctxt *ctxt, - struct lov_stripe_md *lsm, int count, struct llog_cookie *cookies, int flags); -int llog_obd_origin_add(const struct lu_env *env, struct llog_ctxt *ctxt, - struct llog_rec_hdr *rec, struct lov_stripe_md *lsm, - struct llog_cookie *logcookies, int numcookies); - -int obd_llog_init(struct obd_device *obd, struct obd_llog_group *olg, - struct obd_device *disk_obd, int *idx); - -int obd_llog_finish(struct obd_device *obd, int count); /* llog_ioctl.c */ +struct obd_ioctl_data; int llog_ioctl(const struct lu_env *env, struct llog_ctxt *ctxt, int cmd, struct obd_ioctl_data *data); -int llog_catalog_list(struct obd_device *obd, int count, - struct obd_ioctl_data *data); +int llog_catalog_list(const struct lu_env *env, struct dt_device *d, + int count, struct obd_ioctl_data *data, + const struct lu_fid *fid); /* llog_net.c */ int llog_initiator_connect(struct llog_ctxt *ctxt); -int llog_receptor_accept(struct llog_ctxt *ctxt, struct obd_import *imp); -int llog_origin_connect(struct llog_ctxt *ctxt, - struct llog_logid *logid, struct llog_gen *gen, - struct obd_uuid *uuid); -int llog_handle_connect(struct ptlrpc_request *req); - -/* recov_thread.c */ -int llog_obd_repl_cancel(const struct lu_env *env, struct llog_ctxt *ctxt, - struct lov_stripe_md *lsm, int count, - struct llog_cookie *cookies, int flags); -int llog_obd_repl_sync(struct llog_ctxt *ctxt, struct obd_export *exp, - int flags); -int llog_obd_repl_connect(struct llog_ctxt *ctxt, - struct llog_logid *logid, struct llog_gen *gen, - struct obd_uuid *uuid); 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); @@ -270,7 +204,6 @@ struct llog_operations { int flags); int (*lop_cleanup)(const struct lu_env *env, struct llog_ctxt *ctxt); int (*lop_cancel)(const struct lu_env *env, struct llog_ctxt *ctxt, - struct lov_stripe_md *lsm, int count, struct llog_cookie *cookies, int flags); int (*lop_connect)(struct llog_ctxt *ctxt, struct llog_logid *logid, struct llog_gen *gen, struct obd_uuid *uuid); @@ -312,8 +245,8 @@ struct llog_operations { int (*lop_write_rec)(const struct lu_env *env, struct llog_handle *loghandle, struct llog_rec_hdr *rec, - struct llog_cookie *cookie, int cookiecount, - void *buf, int idx, struct thandle *th); + struct llog_cookie *cookie, + int idx, struct thandle *th); /** * Add new record in llog catalog. Does the same as llog_write_rec() * but using llog catalog. @@ -323,22 +256,21 @@ struct llog_operations { struct llog_rec_hdr *rec, struct thandle *th); int (*lop_add)(const struct lu_env *env, struct llog_handle *lgh, struct llog_rec_hdr *rec, struct llog_cookie *cookie, - void *buf, struct thandle *th); - /* Old llog_add version, used in MDS-LOV-OSC now and will gone with - * LOD/OSP replacement */ - int (*lop_obd_add)(const struct lu_env *env, struct llog_ctxt *ctxt, - struct llog_rec_hdr *rec, struct lov_stripe_md *lsm, - struct llog_cookie *logcookies, int numcookies); + struct thandle *th); }; /* 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 file *lgh_file; + 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 */ @@ -350,158 +282,52 @@ struct llog_handle { char *lgh_name; void *private_data; struct llog_operations *lgh_logops; -}; - -/* llog_lvfs.c */ -extern struct llog_operations llog_lvfs_ops; -int llog_get_cat_list(struct obd_device *disk_obd, - char *name, int idx, int count, - struct llog_catid *idarray); + atomic_t lgh_refcount; -int llog_put_cat_list(struct obd_device *disk_obd, - char *name, int idx, int count, struct llog_catid *idarray); + int lgh_max_size; + __u32 lgh_stale:1; +}; /* llog_osd.c */ extern struct llog_operations llog_osd_ops; +extern struct llog_operations llog_common_cat_ops; int llog_osd_get_cat_list(const struct lu_env *env, struct dt_device *d, - int idx, int count, struct llog_catid *idarray); + int idx, int count, struct llog_catid *idarray, + const struct lu_fid *fid); int llog_osd_put_cat_list(const struct lu_env *env, struct dt_device *d, - int idx, int count, struct llog_catid *idarray); + int idx, int count, struct llog_catid *idarray, + const struct lu_fid *fid); #define LLOG_CTXT_FLAG_UNINITIALIZED 0x00000001 #define LLOG_CTXT_FLAG_STOP 0x00000002 +/* Indicate the llog objects under this context are normal FID objects, + * instead of objects with local FID. */ +#define LLOG_CTXT_FLAG_NORMAL_FID 0x00000004 + struct llog_ctxt { int loc_idx; /* my index the obd array of ctxt's */ - struct llog_gen loc_gen; struct obd_device *loc_obd; /* points back to the containing obd*/ struct obd_llog_group *loc_olg; /* group containing that ctxt */ struct obd_export *loc_exp; /* parent "disk" export (e.g. MDS) */ struct obd_import *loc_imp; /* to use in RPC's: can be backward pointing import */ - struct llog_operations *loc_logops; - struct llog_handle *loc_handle; - struct llog_commit_master *loc_lcm; - struct llog_canceld_ctxt *loc_llcd; - struct mutex loc_mutex; /* protect loc_llcd and loc_imp */ - cfs_atomic_t loc_refcount; - void *llog_proc_cb; - long loc_flags; /* flags, see above defines */ + struct llog_operations *loc_logops; + struct llog_handle *loc_handle; + struct mutex loc_mutex; /* protect loc_imp */ + atomic_t loc_refcount; + long loc_flags; /* flags, see above defines */ 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 LCM_NAME_SIZE 64 - -struct llog_commit_master { - /** - * Thread control flags (start, stop, etc.) - */ - long lcm_flags; - /** - * Number of llcds onthis lcm. - */ - cfs_atomic_t lcm_count; - /** - * The refcount for lcm - */ - cfs_atomic_t lcm_refcount; - /** - * Thread control structure. Used for control commit thread. - */ - struct ptlrpcd_ctl lcm_pc; - /** - * Lock protecting list of llcds. - */ - spinlock_t lcm_lock; - /** - * Llcds in flight for debugging purposes. - */ - cfs_list_t lcm_llcds; - /** - * Commit thread name buffer. Only used for thread start. - */ - char lcm_name[LCM_NAME_SIZE]; -}; - -static inline struct llog_commit_master -*lcm_get(struct llog_commit_master *lcm) -{ - cfs_atomic_inc(&lcm->lcm_refcount); - return lcm; -} - -static inline void -lcm_put(struct llog_commit_master *lcm) -{ - LASSERT_ATOMIC_POS(&lcm->lcm_refcount); - if (cfs_atomic_dec_and_test(&lcm->lcm_refcount)) - OBD_FREE_PTR(lcm); -} - -struct llog_canceld_ctxt { - /** - * Llog context this llcd is attached to. Used for accessing - * ->loc_import and others in process of canceling cookies - * gathered in this llcd. - */ - struct llog_ctxt *llcd_ctxt; - /** - * Cancel thread control stucture pointer. Used for accessing - * it to see if should stop processing and other needs. - */ - struct llog_commit_master *llcd_lcm; - /** - * Maximal llcd size. Used in calculations on how much of room - * left in llcd to cookie comming cookies. - */ - int llcd_size; - /** - * Link to lcm llcds list. - */ - cfs_list_t llcd_list; - /** - * Current llcd size while gathering cookies. This should not be - * more than ->llcd_size. Used for determining if we need to - * send this llcd (if full) and allocate new one. This is also - * used for copying new cookie at the end of buffer. - */ - int llcd_cookiebytes; - /** - * Pointer to the start of cookies buffer. - */ - struct llog_cookie llcd_cookies[0]; -}; - -/* ptlrpc/recov_thread.c */ -extern struct llog_commit_master *llog_recov_thread_init(char *name); -extern void llog_recov_thread_fini(struct llog_commit_master *lcm, - int force); -extern int llog_recov_thread_start(struct llog_commit_master *lcm); -extern void llog_recov_thread_stop(struct llog_commit_master *lcm, - int force); - -static inline void llog_gen_init(struct llog_ctxt *ctxt) -{ - struct obd_device *obd = ctxt->loc_exp->exp_obd; - - LASSERTF(obd->u.obt.obt_magic == OBT_MAGIC, - "%s: wrong obt magic %#x\n", - obd->obd_name, obd->u.obt.obt_magic); - ctxt->loc_gen.mnt_cnt = obd->u.obt.obt_mount_count; - ctxt->loc_gen.conn_cnt++; -} - -static inline int llog_gen_lt(struct llog_gen a, struct llog_gen b) -{ - if (a.mnt_cnt < b.mnt_cnt) - return 1; - if (a.mnt_cnt > b.mnt_cnt) - return 0; - return(a.conn_cnt < b.conn_cnt ? 1 : 0); -} - #define LLOG_PROC_BREAK 0x0001 #define LLOG_DEL_RECORD 0x0002 +#define LLOG_DEL_PLAIN 0x0003 static inline int llog_obd2ops(struct llog_ctxt *ctxt, struct llog_operations **lop) @@ -531,44 +357,36 @@ static inline int llog_data_len(int len) return cfs_size_round(len); } +static inline int llog_get_size(struct llog_handle *loghandle) +{ + if (loghandle && loghandle->lgh_hdr) + return loghandle->lgh_hdr->llh_count; + return 0; +} + static inline struct llog_ctxt *llog_ctxt_get(struct llog_ctxt *ctxt) { - cfs_atomic_inc(&ctxt->loc_refcount); - CDEBUG(D_INFO, "GETting ctxt %p : new refcount %d\n", ctxt, - cfs_atomic_read(&ctxt->loc_refcount)); - return ctxt; + atomic_inc(&ctxt->loc_refcount); + CDEBUG(D_INFO, "GETting ctxt %p : new refcount %d\n", ctxt, + atomic_read(&ctxt->loc_refcount)); + return ctxt; } static inline void llog_ctxt_put(struct llog_ctxt *ctxt) { - if (ctxt == NULL) - return; - LASSERT_ATOMIC_GT_LT(&ctxt->loc_refcount, 0, LI_POISON); - CDEBUG(D_INFO, "PUTting ctxt %p : new refcount %d\n", ctxt, - cfs_atomic_read(&ctxt->loc_refcount) - 1); + if (ctxt == NULL) + return; + LASSERT_ATOMIC_GT_LT(&ctxt->loc_refcount, 0, LI_POISON); + CDEBUG(D_INFO, "PUTting ctxt %p : new refcount %d\n", ctxt, + atomic_read(&ctxt->loc_refcount) - 1); __llog_ctxt_put(NULL, ctxt); } -static inline void llog_group_init(struct obd_llog_group *olg, int group) +static inline void llog_group_init(struct obd_llog_group *olg) { - cfs_waitq_init(&olg->olg_waitq); + init_waitqueue_head(&olg->olg_waitq); spin_lock_init(&olg->olg_lock); mutex_init(&olg->olg_cat_processing); - olg->olg_seq = group; -} - -static inline void llog_group_set_export(struct obd_llog_group *olg, - struct obd_export *exp) -{ - LASSERT(exp != NULL); - - spin_lock(&olg->olg_lock); - if (olg->olg_exp != NULL && olg->olg_exp != exp) - CWARN("%s: export for group %d is changed: 0x%p -> 0x%p\n", - exp->exp_obd->obd_name, olg->olg_seq, - olg->olg_exp, exp); - olg->olg_exp = exp; - spin_unlock(&olg->olg_lock); } static inline int llog_group_set_ctxt(struct obd_llog_group *olg, @@ -626,24 +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, @@ -703,22 +503,45 @@ 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; + struct llog_rec_tail lcr_tail; +}; + +struct llog_cfg_rec *lustre_cfg_rec_new(int cmd, struct lustre_cfg_bufs *bufs); +void lustre_cfg_rec_free(struct llog_cfg_rec *lcr); + +enum { + LLOG_NEXT_IDX = -1, + LLOG_HEADER_IDX = 0, +}; + /* llog.c */ int llog_exist(struct llog_handle *loghandle); 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, struct thandle *th); int llog_write_rec(const struct lu_env *env, struct llog_handle *handle, struct llog_rec_hdr *rec, struct llog_cookie *logcookies, - int numcookies, void *buf, int idx, struct thandle *th); + int idx, struct thandle *th); int llog_add(const struct lu_env *env, struct llog_handle *lgh, struct llog_rec_hdr *rec, struct llog_cookie *logcookies, - void *buf, struct thandle *th); + struct thandle *th); int llog_declare_add(const struct lu_env *env, struct llog_handle *lgh, struct llog_rec_hdr *rec, struct thandle *th); int lustre_process_log(struct super_block *sb, char *logname, @@ -731,8 +554,7 @@ int llog_open_create(const struct lu_env *env, struct llog_ctxt *ctxt, int llog_erase(const struct lu_env *env, struct llog_ctxt *ctxt, struct llog_logid *logid, char *name); int llog_write(const struct lu_env *env, struct llog_handle *loghandle, - struct llog_rec_hdr *rec, struct llog_cookie *reccookie, - int cookiecount, void *buf, int idx); + struct llog_rec_hdr *rec, int idx); /** @} log */