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-rw-r--r--uts/common/fs/zfs/sys/dsl_scan.h108
1 files changed, 108 insertions, 0 deletions
diff --git a/uts/common/fs/zfs/sys/dsl_scan.h b/uts/common/fs/zfs/sys/dsl_scan.h
new file mode 100644
index 000000000000..c79666e67de0
--- /dev/null
+++ b/uts/common/fs/zfs/sys/dsl_scan.h
@@ -0,0 +1,108 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#ifndef _SYS_DSL_SCAN_H
+#define _SYS_DSL_SCAN_H
+
+#include <sys/zfs_context.h>
+#include <sys/zio.h>
+#include <sys/ddt.h>
+#include <sys/bplist.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct objset;
+struct dsl_dir;
+struct dsl_dataset;
+struct dsl_pool;
+struct dmu_tx;
+
+/*
+ * All members of this structure must be uint64_t, for byteswap
+ * purposes.
+ */
+typedef struct dsl_scan_phys {
+ uint64_t scn_func; /* pool_scan_func_t */
+ uint64_t scn_state; /* dsl_scan_state_t */
+ uint64_t scn_queue_obj;
+ uint64_t scn_min_txg;
+ uint64_t scn_max_txg;
+ uint64_t scn_cur_min_txg;
+ uint64_t scn_cur_max_txg;
+ uint64_t scn_start_time;
+ uint64_t scn_end_time;
+ uint64_t scn_to_examine; /* total bytes to be scanned */
+ uint64_t scn_examined; /* bytes scanned so far */
+ uint64_t scn_to_process;
+ uint64_t scn_processed;
+ uint64_t scn_errors; /* scan I/O error count */
+ uint64_t scn_ddt_class_max;
+ ddt_bookmark_t scn_ddt_bookmark;
+ zbookmark_t scn_bookmark;
+ uint64_t scn_flags; /* dsl_scan_flags_t */
+} dsl_scan_phys_t;
+
+#define SCAN_PHYS_NUMINTS (sizeof (dsl_scan_phys_t) / sizeof (uint64_t))
+
+typedef enum dsl_scan_flags {
+ DSF_VISIT_DS_AGAIN = 1<<0,
+} dsl_scan_flags_t;
+
+typedef struct dsl_scan {
+ struct dsl_pool *scn_dp;
+
+ boolean_t scn_pausing;
+ uint64_t scn_restart_txg;
+ uint64_t scn_sync_start_time;
+ zio_t *scn_zio_root;
+
+ /* for debugging / information */
+ uint64_t scn_visited_this_txg;
+
+ dsl_scan_phys_t scn_phys;
+} dsl_scan_t;
+
+int dsl_scan_init(struct dsl_pool *dp, uint64_t txg);
+void dsl_scan_fini(struct dsl_pool *dp);
+void dsl_scan_sync(struct dsl_pool *, dmu_tx_t *);
+int dsl_scan_cancel(struct dsl_pool *);
+int dsl_scan(struct dsl_pool *, pool_scan_func_t);
+void dsl_resilver_restart(struct dsl_pool *, uint64_t txg);
+boolean_t dsl_scan_resilvering(struct dsl_pool *dp);
+boolean_t dsl_dataset_unstable(struct dsl_dataset *ds);
+void dsl_scan_ddt_entry(dsl_scan_t *scn, enum zio_checksum checksum,
+ ddt_entry_t *dde, dmu_tx_t *tx);
+void dsl_scan_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx);
+void dsl_scan_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx);
+void dsl_scan_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2,
+ struct dmu_tx *tx);
+boolean_t dsl_scan_active(dsl_scan_t *scn);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DSL_SCAN_H */