*
* 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, 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
*
* @{
*/
-#if defined(__linux__)
-#include <linux/lustre_log.h>
-#elif defined(__APPLE__)
-#include <darwin/lustre_log.h>
-#elif defined(__WINNT__)
-#include <winnt/lustre_log.h>
-#else
-#error Unsupported operating system.
-#endif
-
#include <obd_class.h>
-#include <obd_ost.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 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)
- ostid_to_fid(fid, &id->lgl_oi, 0);
- else
- lu_igif_build(fid, ostid_id(&id->lgl_oi), id->lgl_ogen);
-}
-
-static inline void fid_to_logid(struct lu_fid *fid, struct llog_logid *id)
-{
- if (fid_is_igif(fid)) {
- /* See above lu_igif_build */
- ostid_set_id(&id->lgl_oi, fid->f_seq);
- id->lgl_ogen = fid->f_oid;
- } else {
- fid_to_ostid(fid, &id->lgl_oi);
- id->lgl_ogen = 0;
- }
-}
-
-static inline void logid_set_id(struct llog_logid *log_id, __u64 id)
-{
- if (log_id->lgl_ogen == 0)
- ostid_set_id(&log_id->lgl_oi, id);
- else
- log_id->lgl_oi.oi.oi_id = id;
-}
-
-static inline __u64 logid_id(struct llog_logid *log_id)
-{
- if (log_id->lgl_ogen == 0)
- return ostid_id(&log_id->lgl_oi);
- else
- return log_id->lgl_oi.oi.oi_id;
-}
-
struct llog_handle;
/* llog.c - general API */
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
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);
+__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_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 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(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);
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);
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);
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.
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 */
+ /* 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;
char *lgh_name;
void *private_data;
struct llog_operations *lgh_logops;
- cfs_atomic_t lgh_refcount;
-};
+ atomic_t lgh_refcount;
-/* llog_lvfs.c */
-extern struct llog_operations llog_lvfs_ops;
+ __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 obd_device *loc_obd; /* points back to the containing obd*/
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_operations *loc_logops;
+ struct llog_handle *loc_handle;
struct mutex loc_mutex; /* protect loc_imp */
- cfs_atomic_t loc_refcount;
- long loc_flags; /* flags, see above defines */
+ 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 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)
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 int llog_group_set_ctxt(struct obd_llog_group *olg,
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_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,
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 */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff