* CDDL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
- * Use is subject to license terms.
+ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
*/
+/* Portions Copyright 2010 Robert Milkowski */
+
#ifndef _SYS_DMU_OBJSET_H
#define _SYS_DMU_OBJSET_H
#include <sys/dnode.h>
#include <sys/zio.h>
#include <sys/zil.h>
+#include <sys/sa.h>
#ifdef __cplusplus
extern "C" {
#endif
+extern krwlock_t os_lock;
+
struct dsl_dataset;
struct dmu_tx;
-struct objset_impl;
+
+#define OBJSET_PHYS_SIZE 2048
+#define OBJSET_OLD_PHYS_SIZE 1024
+
+#define OBJSET_BUF_HAS_USERUSED(buf) \
+ (arc_buf_size(buf) > OBJSET_OLD_PHYS_SIZE)
+
+#define OBJSET_FLAG_USERACCOUNTING_COMPLETE (1ULL<<0)
typedef struct objset_phys {
dnode_phys_t os_meta_dnode;
zil_header_t os_zil_header;
uint64_t os_type;
- char os_pad[1024 - sizeof (dnode_phys_t) - sizeof (zil_header_t) -
- sizeof (uint64_t)];
+ uint64_t os_flags;
+ char os_pad[OBJSET_PHYS_SIZE - sizeof (dnode_phys_t)*3 -
+ sizeof (zil_header_t) - sizeof (uint64_t)*2];
+ dnode_phys_t os_userused_dnode;
+ dnode_phys_t os_groupused_dnode;
} objset_phys_t;
struct objset {
- struct objset_impl *os;
- int os_mode;
-};
-
-typedef struct objset_impl {
/* Immutable: */
struct dsl_dataset *os_dsl_dataset;
spa_t *os_spa;
arc_buf_t *os_phys_buf;
objset_phys_t *os_phys;
- dnode_t *os_meta_dnode;
+ /*
+ * The following "special" dnodes have no parent and are exempt from
+ * dnode_move(), but they root their descendents in this objset using
+ * handles anyway, so that all access to dnodes from dbufs consistently
+ * uses handles.
+ */
+ dnode_handle_t os_meta_dnode;
+ dnode_handle_t os_userused_dnode;
+ dnode_handle_t os_groupused_dnode;
zilog_t *os_zil;
- objset_t os;
- uint8_t os_checksum; /* can change, under dsl_dir's locks */
- uint8_t os_compress; /* can change, under dsl_dir's locks */
- uint8_t os_copies; /* can change, under dsl_dir's locks */
- uint8_t os_primary_cache; /* can change, under dsl_dir's locks */
- uint8_t os_secondary_cache; /* can change, under dsl_dir's locks */
+
+ /* can change, under dsl_dir's locks: */
+ uint8_t os_checksum;
+ uint8_t os_compress;
+ uint8_t os_copies;
+ uint8_t os_dedup_checksum;
+ uint8_t os_dedup_verify;
+ uint8_t os_logbias;
+ uint8_t os_primary_cache;
+ uint8_t os_secondary_cache;
+ uint8_t os_sync;
/* no lock needed: */
struct dmu_tx *os_synctx; /* XXX sketchy */
blkptr_t *os_rootbp;
zil_header_t os_zil_header;
+ list_t os_synced_dnodes;
+ uint64_t os_flags;
/* Protected by os_obj_lock */
kmutex_t os_obj_lock;
/* stuff we store for the user */
kmutex_t os_user_ptr_lock;
void *os_user_ptr;
-} objset_impl_t;
+ /* SA layout/attribute registration */
+ sa_os_t *os_sa;
+};
+
+#define DMU_META_OBJSET 0
#define DMU_META_DNODE_OBJECT 0
+#define DMU_OBJECT_IS_SPECIAL(obj) ((int64_t)(obj) <= 0)
+#define DMU_META_DNODE(os) ((os)->os_meta_dnode.dnh_dnode)
+#define DMU_USERUSED_DNODE(os) ((os)->os_userused_dnode.dnh_dnode)
+#define DMU_GROUPUSED_DNODE(os) ((os)->os_groupused_dnode.dnh_dnode)
#define DMU_OS_IS_L2CACHEABLE(os) \
((os)->os_secondary_cache == ZFS_CACHE_ALL || \
(os)->os_secondary_cache == ZFS_CACHE_METADATA)
/* called from zpl */
-int dmu_objset_open(const char *name, dmu_objset_type_t type, int mode,
- objset_t **osp);
-void dmu_objset_close(objset_t *os);
-int dmu_objset_create(const char *name, dmu_objset_type_t type,
- objset_t *clone_parent, uint64_t flags,
+int dmu_objset_hold(const char *name, void *tag, objset_t **osp);
+int dmu_objset_own(const char *name, dmu_objset_type_t type,
+ boolean_t readonly, void *tag, objset_t **osp);
+void dmu_objset_rele(objset_t *os, void *tag);
+void dmu_objset_disown(objset_t *os, void *tag);
+int dmu_objset_from_ds(struct dsl_dataset *ds, objset_t **osp);
+
+int dmu_objset_create(const char *name, dmu_objset_type_t type, uint64_t flags,
void (*func)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx), void *arg);
-int dmu_objset_destroy(const char *name);
-int dmu_objset_rollback(objset_t *os);
-int dmu_objset_snapshot(char *fsname, char *snapname, boolean_t recursive);
+int dmu_objset_clone(const char *name, struct dsl_dataset *clone_origin,
+ uint64_t flags);
+int dmu_objset_destroy(const char *name, boolean_t defer);
+int dmu_objset_snapshot(char *fsname, char *snapname, char *tag,
+ struct nvlist *props, boolean_t recursive, boolean_t temporary, int fd);
void dmu_objset_stats(objset_t *os, nvlist_t *nv);
void dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat);
void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp,
uint64_t *usedobjsp, uint64_t *availobjsp);
uint64_t dmu_objset_fsid_guid(objset_t *os);
-int dmu_objset_find(char *name, int func(char *, void *), void *arg,
+int dmu_objset_find(char *name, int func(const char *, void *), void *arg,
int flags);
int dmu_objset_find_spa(spa_t *spa, const char *name,
int func(spa_t *, uint64_t, const char *, void *), void *arg, int flags);
-int dmu_objset_prefetch(char *name, void *arg);
+int dmu_objset_prefetch(const char *name, void *arg);
void dmu_objset_byteswap(void *buf, size_t size);
int dmu_objset_evict_dbufs(objset_t *os);
+timestruc_t dmu_objset_snap_cmtime(objset_t *os);
/* called from dsl */
-void dmu_objset_sync(objset_impl_t *os, zio_t *zio, dmu_tx_t *tx);
-objset_impl_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds,
+void dmu_objset_sync(objset_t *os, zio_t *zio, dmu_tx_t *tx);
+boolean_t dmu_objset_is_dirty(objset_t *os, uint64_t txg);
+boolean_t dmu_objset_is_dirty_anywhere(objset_t *os);
+objset_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds,
blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx);
int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp,
- objset_impl_t **osip);
-void dmu_objset_evict(struct dsl_dataset *ds, void *arg);
+ objset_t **osp);
+void dmu_objset_evict(objset_t *os);
+void dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx);
+void dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx);
+boolean_t dmu_objset_userused_enabled(objset_t *os);
+int dmu_objset_userspace_upgrade(objset_t *os);
+boolean_t dmu_objset_userspace_present(objset_t *os);
+
+void dmu_objset_init(void);
+void dmu_objset_fini(void);
#ifdef __cplusplus
}