#include <obd_class.h>
#include <obd_ost.h>
#include <lustre/lustre_idl.h>
+#include <dt_object.h>
#define LOG_NAME_LIMIT(logname, name) \
snprintf(logname, sizeof(logname), "LOGS/%s", name)
cfs_list_t phd_entry;
struct llog_handle *phd_cat_handle;
struct llog_cookie phd_cookie; /* cookie of this log in its cat */
- int phd_last_idx;
};
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 */
};
-/* In-memory descriptor for a log object or log catalog */
-struct llog_handle {
- cfs_rw_semaphore_t lgh_lock;
- struct llog_logid lgh_id; /* id of this log */
- struct llog_log_hdr *lgh_hdr;
- struct file *lgh_file;
- int lgh_last_idx;
- int lgh_cur_idx; /* used during llog_process */
- __u64 lgh_cur_offset; /* used during llog_process */
- struct llog_ctxt *lgh_ctxt;
- union {
- struct plain_handle_data phd;
- struct cat_handle_data chd;
- } u;
-};
+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 */
typedef int (*llog_cb_t)(struct llog_handle *, struct llog_rec_hdr *, void *);
/* XXX add 2 more: commit callbacks and llog recovery functions */
};
+/* In-memory descriptor for a log object or log catalog */
+struct llog_handle {
+ cfs_rw_semaphore_t lgh_lock;
+ struct llog_logid lgh_id; /* id of this log */
+ struct llog_log_hdr *lgh_hdr;
+ cfs_spinlock_t lgh_hdr_lock; /* protect lgh_hdr data */
+ union {
+ struct file *lgh_file;
+ struct dt_object *lgh_obj;
+ };
+ int lgh_last_idx;
+ int lgh_cur_idx; /* used during llog_process */
+ __u64 lgh_cur_offset; /* used during llog_process */
+ struct llog_ctxt *lgh_ctxt;
+ union {
+ struct plain_handle_data phd;
+ struct cat_handle_data chd;
+ } u;
+ 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,
cfs_atomic_t loc_refcount;
void *llog_proc_cb;
long loc_flags; /* flags, see above defines */
+ struct dt_object *loc_dir;
};
#define LCM_NAME_SIZE 64
if (err)
return err;
+ err = llog_info_init();
+ if (err)
+ return err;
+
#ifdef __KERNEL__
err = lustre_register_fs();
#endif
OBP(obd, detach)(obd);
}
}
+ llog_info_fini();
lu_global_fini();
obd_cleanup_caches();
* if an OST or MDS fails it need only look at log(s) relevant to itself
*
* Author: Andreas Dilger <adilger@clusterfs.com>
+ * Author: Alex Zhuravlev <bzzz@whamcloud.com>
+ * Author: Mikhail Pershin <tappro@whamcloud.com>
*/
#define DEBUG_SUBSYSTEM S_LOG
#include <obd_class.h>
#include <lustre_log.h>
-#include <libcfs/list.h>
#include "llog_internal.h"
/* Allocate a new log or catalog handle */
struct llog_handle *loghandle;
ENTRY;
- OBD_ALLOC(loghandle, sizeof(*loghandle));
+ OBD_ALLOC_PTR(loghandle);
if (loghandle == NULL)
RETURN(ERR_PTR(-ENOMEM));
cfs_init_rwsem(&loghandle->lgh_lock);
+ cfs_spin_lock_init(&loghandle->lgh_hdr_lock);
+ CFS_INIT_LIST_HEAD(&loghandle->u.phd.phd_entry);
RETURN(loghandle);
}
cfs_list_del_init(&loghandle->u.phd.phd_entry);
if (loghandle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
LASSERT(cfs_list_empty(&loghandle->u.chd.chd_head));
- OBD_FREE(loghandle->lgh_hdr, LLOG_CHUNK_SIZE);
+ LASSERT(sizeof(*(loghandle->lgh_hdr)) == LLOG_CHUNK_SIZE);
+ OBD_FREE(loghandle->lgh_hdr, LLOG_CHUNK_SIZE);
- out:
- OBD_FREE(loghandle, sizeof(*loghandle));
+out:
+ OBD_FREE_PTR(loghandle);
}
EXPORT_SYMBOL(llog_free_handle);
RETURN(-EINVAL);
}
- if (!ext2_clear_bit(index, llh->llh_bitmap)) {
+ cfs_spin_lock(&loghandle->lgh_hdr_lock);
+ if (!ext2_clear_bit(index, llh->llh_bitmap)) {
+ cfs_spin_unlock(&loghandle->lgh_hdr_lock);
CDEBUG(D_RPCTRACE, "Catalog index %u already clear?\n", index);
RETURN(-ENOENT);
}
if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
(llh->llh_count == 1) &&
(loghandle->lgh_last_idx == (LLOG_BITMAP_BYTES * 8) - 1)) {
- rc = llog_destroy(loghandle);
- if (rc) {
- CERROR("Failure destroying log after last cancel: %d\n",
- rc);
- ext2_set_bit(index, llh->llh_bitmap);
- llh->llh_count++;
- } else {
- rc = 1;
- }
- RETURN(rc);
- }
-
- rc = llog_write_rec(loghandle, &llh->llh_hdr, NULL, 0, NULL, 0);
- if (rc) {
- CERROR("Failure re-writing header %d\n", rc);
- ext2_set_bit(index, llh->llh_bitmap);
- llh->llh_count++;
- }
- RETURN(rc);
+ cfs_spin_unlock(&loghandle->lgh_hdr_lock);
+ rc = llog_destroy(loghandle);
+ if (rc < 0) {
+ CERROR("%s: can't destroy empty llog #"LPX64"#"LPX64
+ "#%08x: rc = %d\n",
+ loghandle->lgh_ctxt->loc_obd->obd_name,
+ loghandle->lgh_id.lgl_oid,
+ loghandle->lgh_id.lgl_oseq,
+ loghandle->lgh_id.lgl_ogen, rc);
+ GOTO(out_err, rc);
+ }
+ RETURN(1);
+ }
+ cfs_spin_unlock(&loghandle->lgh_hdr_lock);
+
+ rc = llog_write_rec(loghandle, &llh->llh_hdr, NULL, 0, NULL, 0);
+ if (rc < 0) {
+ CERROR("%s: fail to write header for llog #"LPX64"#"LPX64
+ "#%08x: rc = %d\n",
+ loghandle->lgh_ctxt->loc_obd->obd_name,
+ loghandle->lgh_id.lgl_oid,
+ loghandle->lgh_id.lgl_oseq,
+ loghandle->lgh_id.lgl_ogen, rc);
+ GOTO(out_err, rc);
+ }
+ RETURN(0);
+out_err:
+ cfs_spin_lock(&loghandle->lgh_hdr_lock);
+ ext2_set_bit(index, llh->llh_bitmap);
+ llh->llh_count++;
+ cfs_spin_unlock(&loghandle->lgh_hdr_lock);
+ return rc;
}
EXPORT_SYMBOL(llog_cancel_rec);
ENTRY;
LASSERT(handle->lgh_hdr == NULL);
- OBD_ALLOC(llh, sizeof(*llh));
+ OBD_ALLOC_PTR(llh);
if (llh == NULL)
RETURN(-ENOMEM);
handle->lgh_hdr = llh;
out:
if (flags & LLOG_F_IS_CAT) {
- CFS_INIT_LIST_HEAD(&handle->u.chd.chd_head);
- llh->llh_size = sizeof(struct llog_logid_rec);
- } else if (flags & LLOG_F_IS_PLAIN) {
- CFS_INIT_LIST_HEAD(&handle->u.phd.phd_entry);
- } else {
- CERROR("Unknown flags: %#x (Expected %#x or %#x\n",
- flags, LLOG_F_IS_CAT, LLOG_F_IS_PLAIN);
- LBUG();
- }
-
- if (rc) {
- OBD_FREE(llh, sizeof(*llh));
- handle->lgh_hdr = NULL;
- }
- RETURN(rc);
+ LASSERT(cfs_list_empty(&handle->u.chd.chd_head));
+ CFS_INIT_LIST_HEAD(&handle->u.chd.chd_head);
+ llh->llh_size = sizeof(struct llog_logid_rec);
+ } else if (!(flags & LLOG_F_IS_PLAIN)) {
+ CERROR("Unknown flags: %#x (Expected %#x or %#x\n",
+ flags, LLOG_F_IS_CAT, LLOG_F_IS_PLAIN);
+ rc = -EINVAL;
+ }
+
+ if (rc) {
+ OBD_FREE_PTR(llh);
+ handle->lgh_hdr = NULL;
+ }
+ RETURN(rc);
}
EXPORT_SYMBOL(llog_init_handle);
if (index == 0)
index = 1;
+
+ cfs_spin_lock(&loghandle->lgh_hdr_lock);
+ llh->llh_count++;
if (ext2_set_bit(index, llh->llh_bitmap)) {
CERROR("argh, index %u already set in log bitmap?\n",
index);
+ cfs_spin_unlock(&loghandle->lgh_hdr_lock);
LBUG(); /* should never happen */
}
+ cfs_spin_unlock(&loghandle->lgh_hdr_lock);
+
cathandle->lgh_last_idx = index;
- llh->llh_count++;
llh->llh_tail.lrt_index = index;
CDEBUG(D_RPCTRACE,"new recovery log "LPX64":%x for index %u of catalog "
int lpi_rc;
int lpi_flags;
cfs_completion_t lpi_completion;
+ const struct lu_env *lpi_env;
+
+};
+
+struct llog_thread_info {
+ struct lu_attr lgi_attr;
+ struct lu_fid lgi_fid;
+ struct llog_logid lgi_logid;
+ struct dt_object_format lgi_dof;
+ struct llog_process_data lgi_lpd;
+ struct lustre_mdt_attrs lgi_lma_attr;
+
+ struct lu_buf lgi_buf;
+ loff_t lgi_off;
+
+ struct llog_rec_hdr lgi_lrh;
+ struct llog_rec_tail lgi_tail;
+ struct llog_logid_rec lgi_lid;
};
+extern struct lu_context_key llog_thread_key;
+
+static inline struct llog_thread_info *llog_info(const struct lu_env *env)
+{
+ struct llog_thread_info *lgi;
+
+ lgi = lu_context_key_get(&env->le_ctx, &llog_thread_key);
+ LASSERT(lgi);
+ return lgi;
+}
+
+int llog_info_init(void);
+void llog_info_fini(void);
+
int llog_cat_id2handle(struct llog_handle *cathandle, struct llog_handle **res,
struct llog_logid *logid);
int class_config_dump_handler(struct llog_handle * handle,
RETURN(rc);
}
EXPORT_SYMBOL(obd_llog_finish);
+
+/* context key constructor/destructor: llog_key_init, llog_key_fini */
+LU_KEY_INIT_FINI(llog, struct llog_thread_info);
+/* context key: llog_thread_key */
+LU_CONTEXT_KEY_DEFINE(llog, LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL);
+LU_KEY_INIT_GENERIC(llog);
+EXPORT_SYMBOL(llog_thread_key);
+
+int llog_info_init(void)
+{
+ llog_key_init_generic(&llog_thread_key, NULL);
+ lu_context_key_register(&llog_thread_key);
+ return 0;
+}
+
+void llog_info_fini(void)
+{
+ lu_context_key_degister(&llog_thread_key);
+}
git://git.whamcloud.com / fs / lustre-release.git / commitdiff