* 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, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
struct llog_handle;
/* llog.c - general API */
-typedef int (*llog_cb_t)(const struct lu_env *env, struct llog_handle *lgh,
- struct llog_rec_hdr *rec, void *data);
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,
+ struct llog_handle *loghandle,
+ llog_cb_t cb, void *data, void *catdata, bool fork);
int llog_reverse_process(const struct lu_env *env,
struct llog_handle *loghandle, llog_cb_t cb,
void *data, void *catdata);
void *lpca_arg;
};
-int cat_cancel_cb(const struct lu_env *env, struct llog_handle *cathandle,
- struct llog_rec_hdr *rec, void *data);
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);
+ void *buf, 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);
int llog_cat_cancel_records(const struct lu_env *env,
struct llog_handle *cathandle, int count,
struct llog_cookie *cookies);
-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 fork);
+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);
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);
int llog_cat_reverse_process(const struct lu_env *env,
struct llog_handle *cat_llh, llog_cb_t cb,
void *data);
-int llog_cat_set_first_idx(struct llog_handle *cathandle, int index);
+int llog_cat_init_and_process(const struct lu_env *env,
+ struct llog_handle *llh);
/* llog_obd.c */
-int llog_setup_named(struct obd_device *obd, struct obd_llog_group *olg,
- int index, struct obd_device *disk_obd, int count,
- struct llog_logid *logid, const char *logname,
- struct llog_operations *op);
-int llog_setup(struct obd_device *obd, struct obd_llog_group *olg, int index,
- struct obd_device *disk_obd, int count, struct llog_logid *logid,
- struct llog_operations *op);
-int __llog_ctxt_put(struct llog_ctxt *ctxt);
-int llog_cleanup(struct llog_ctxt *);
+int llog_setup(const struct lu_env *env, struct obd_device *obd,
+ struct obd_llog_group *olg, int index,
+ struct obd_device *disk_obd, struct llog_operations *op);
+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_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_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_setup(const struct lu_env *env, struct obd_device *obd,
- struct obd_llog_group *olg, int index,
- struct obd_device *disk_obd, int count,
- struct llog_logid *logid, const char *name);
-int llog_obd_origin_cleanup(const struct lu_env *env, struct llog_ctxt *ctxt);
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_finish(struct obd_device *obd, int count);
/* llog_ioctl.c */
-int llog_ioctl(struct llog_ctxt *ctxt, int cmd, struct obd_ioctl_data *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);
struct llog_handle *handle);
int (*lop_setup)(const struct lu_env *env, struct obd_device *obd,
struct obd_llog_group *olg, int ctxt_idx,
- struct obd_device *disk_obd, int count,
- struct llog_logid *logid, const char *name);
+ struct obd_device *disk_obd);
int (*lop_sync)(struct llog_ctxt *ctxt, struct obd_export *exp,
int flags);
int (*lop_cleanup)(const struct lu_env *env, struct llog_ctxt *ctxt);
* write new record in llog. It appends records usually but can edit
* existing records too.
*/
+ int (*lop_declare_write_rec)(const struct lu_env *env,
+ struct llog_handle *lgh,
+ struct llog_rec_hdr *rec,
+ int idx, struct thandle *th);
int (*lop_write_rec)(const struct lu_env *env,
struct llog_handle *loghandle,
struct llog_rec_hdr *rec,
- struct llog_cookie *logcookies, int numcookies,
- void *buf, int idx);
+ struct llog_cookie *cookie, int cookiecount,
+ void *buf, int idx, struct thandle *th);
/**
* Add new record in llog catalog. Does the same as llog_write_rec()
* but using llog catalog.
*/
- int (*lop_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 (*lop_declare_add)(const struct lu_env *env,
+ struct llog_handle *lgh,
+ 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);
};
/* In-memory descriptor for a log object or log catalog */
struct llog_handle {
- cfs_rw_semaphore_t lgh_lock;
- cfs_spinlock_t lgh_hdr_lock; /* protect lgh_hdr data */
+ struct rw_semaphore lgh_lock;
+ spinlock_t lgh_hdr_lock; /* protect lgh_hdr data */
struct llog_logid lgh_id; /* id of this log */
struct llog_log_hdr *lgh_hdr;
struct file *lgh_file;
char *lgh_name;
void *private_data;
struct llog_operations *lgh_logops;
+ cfs_atomic_t lgh_refcount;
};
/* llog_lvfs.c */
int llog_put_cat_list(struct obd_device *disk_obd,
char *name, int idx, int count, struct llog_catid *idarray);
+/* llog_osd.c */
+extern struct llog_operations llog_osd_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 llog_osd_put_cat_list(const struct lu_env *env, struct dt_device *d,
+ int idx, int count,
+ struct llog_catid *idarray);
+
#define LLOG_CTXT_FLAG_UNINITIALIZED 0x00000001
#define LLOG_CTXT_FLAG_STOP 0x00000002
struct llog_handle *loc_handle;
struct llog_commit_master *loc_lcm;
struct llog_canceld_ctxt *loc_llcd;
- cfs_mutex_t loc_mutex; /* protects loc_llcd and loc_imp */
+ 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 */
/**
* Lock protecting list of llcds.
*/
- cfs_spinlock_t lcm_lock;
+ spinlock_t lcm_lock;
/**
* Llcds in flight for debugging purposes.
*/
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);
- __llog_ctxt_put(ctxt);
+ __llog_ctxt_put(NULL, ctxt);
}
static inline void llog_group_init(struct obd_llog_group *olg, int group)
{
- cfs_waitq_init(&olg->olg_waitq);
- cfs_spin_lock_init(&olg->olg_lock);
- cfs_mutex_init(&olg->olg_cat_processing);
- olg->olg_seq = group;
+ cfs_waitq_init(&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);
-
- cfs_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;
- cfs_spin_unlock(&olg->olg_lock);
+ 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,
struct llog_ctxt *ctxt, int index)
{
- LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
-
- cfs_spin_lock(&olg->olg_lock);
- if (olg->olg_ctxts[index] != NULL) {
- cfs_spin_unlock(&olg->olg_lock);
- return -EEXIST;
- }
- olg->olg_ctxts[index] = ctxt;
- cfs_spin_unlock(&olg->olg_lock);
- return 0;
+ LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
+
+ spin_lock(&olg->olg_lock);
+ if (olg->olg_ctxts[index] != NULL) {
+ spin_unlock(&olg->olg_lock);
+ return -EEXIST;
+ }
+ olg->olg_ctxts[index] = ctxt;
+ spin_unlock(&olg->olg_lock);
+ return 0;
}
static inline struct llog_ctxt *llog_group_get_ctxt(struct obd_llog_group *olg,
int index)
{
- struct llog_ctxt *ctxt;
+ struct llog_ctxt *ctxt;
- LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
+ LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
- cfs_spin_lock(&olg->olg_lock);
- if (olg->olg_ctxts[index] == NULL) {
- ctxt = NULL;
- } else {
- ctxt = llog_ctxt_get(olg->olg_ctxts[index]);
- }
- cfs_spin_unlock(&olg->olg_lock);
- return ctxt;
+ spin_lock(&olg->olg_lock);
+ if (olg->olg_ctxts[index] == NULL)
+ ctxt = NULL;
+ else
+ ctxt = llog_ctxt_get(olg->olg_ctxts[index]);
+ spin_unlock(&olg->olg_lock);
+ return ctxt;
+}
+
+static inline void llog_group_clear_ctxt(struct obd_llog_group *olg, int index)
+{
+ LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
+ spin_lock(&olg->olg_lock);
+ olg->olg_ctxts[index] = NULL;
+ spin_unlock(&olg->olg_lock);
}
static inline struct llog_ctxt *llog_get_context(struct obd_device *obd,
return (llog_group_ctxt_null(&obd->obd_olg, index));
}
-static inline 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 llog_operations *lop;
- int raised, rc, buflen;
-
- ENTRY;
-
- rc = llog_handle2ops(handle, &lop);
- if (rc)
- RETURN(rc);
- LASSERT(lop);
- if (lop->lop_write_rec == NULL)
- RETURN(-EOPNOTSUPP);
-
- /* FIXME: Why doesn't caller just set the right lrh_len itself? */
- if (buf)
- buflen = rec->lrh_len + sizeof(struct llog_rec_hdr) +
- sizeof(struct llog_rec_tail);
- else
- buflen = rec->lrh_len;
- LASSERT(cfs_size_round(buflen) == buflen);
-
- raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
- if (!raised)
- cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
- rc = lop->lop_write_rec(env, handle, rec, logcookies, numcookies,
- buf, idx);
- if (!raised)
- cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
- RETURN(rc);
-}
-
static inline int llog_destroy(const struct lu_env *env,
struct llog_handle *handle)
{
RETURN(rc);
}
-/**
- * new llog API
- *
- * API functions:
- * llog_open - open llog, may not exist
- * llog_exist - check if llog exists
- * llog_close - close opened llog, pair for open, frees llog_handle
- * llog_declare_create - declare llog creation
- * llog_create - create new llog on disk, need transaction handle
- */
-static inline int llog_exist(struct llog_handle *loghandle)
-{
- struct llog_operations *lop;
- int raised, rc;
-
- ENTRY;
-
- rc = llog_handle2ops(loghandle, &lop);
- if (rc)
- RETURN(rc);
- if (lop->lop_exist == NULL)
- RETURN(-EOPNOTSUPP);
- raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
- if (!raised)
- cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
- rc = lop->lop_exist(loghandle);
- if (!raised)
- cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
- RETURN(rc);
-}
-
-static inline int llog_declare_create(const struct lu_env *env,
- struct llog_handle *loghandle,
- struct thandle *th)
-{
- struct llog_operations *lop;
- int raised, rc;
-
- ENTRY;
-
- rc = llog_handle2ops(loghandle, &lop);
- if (rc)
- RETURN(rc);
- if (lop->lop_declare_create == NULL)
- RETURN(-EOPNOTSUPP);
-
- raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
- if (!raised)
- cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
- rc = lop->lop_declare_create(env, loghandle, th);
- if (!raised)
- cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
- RETURN(rc);
-}
-
-static inline int llog_create(const struct lu_env *env,
- struct llog_handle *handle, struct thandle *th)
-{
- struct llog_operations *lop;
- int raised, rc;
-
- ENTRY;
-
- rc = llog_handle2ops(handle, &lop);
- if (rc)
- RETURN(rc);
- if (lop->lop_create == NULL)
- RETURN(-EOPNOTSUPP);
-
- raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
- if (!raised)
- cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
- rc = lop->lop_create(env, handle, th);
- if (!raised)
- cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
- RETURN(rc);
-}
-
+/* 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_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 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);
+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,
- struct config_llog_instance *cfg);
+ struct config_llog_instance *cfg);
int lustre_end_log(struct super_block *sb, char *logname,
- struct config_llog_instance *cfg);
+ struct config_llog_instance *cfg);
int llog_open_create(const struct lu_env *env, struct llog_ctxt *ctxt,
struct llog_handle **res, struct llog_logid *logid,
char *name);