NEX-10069 ZFS_READONLY is a little too strict (fix test lint)
NEX-9553 Move ss_fill gap logic from scan algorithm into range_tree.c
Reviewed by: Roman Strashkin <roman.strashkin@nexenta.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
NEX-6088 ZFS scrub/resilver take excessively long due to issuing lots of random IO
Reviewed by: Roman Strashkin <roman.strashkin@nexenta.com>
Reviewed by: Sanjay Nadkarni <sanjay.nadkarni@nexenta.com>
NEX-4620 ZFS autotrim triggering is unreliable
NEX-4622 On-demand TRIM code illogically enumerates metaslabs via mg_ms_tree
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
Reviewed by: Hans Rosenfeld <hans.rosenfeld@nexenta.com>
NEX-4619 Want kstats to monitor TRIM and UNMAP operation
Reviewed by: Alek Pinchuk <alek.pinchuk@nexenta.com>
Reviewed by: Hans Rosenfeld <hans.rosenfeld@nexenta.com>
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
NEX-4245 WRC: Code cleanup and refactoring to simplify merge with upstream
Reviewed by: Alek Pinchuk <alek.pinchuk@nexenta.com>
Reviewed by: Alex Aizman <alex.aizman@nexenta.com>
NEX-3984 On-demand TRIM
Reviewed by: Alek Pinchuk <alek@nexenta.com>
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
Conflicts:
        usr/src/common/zfs/zpool_prop.c
        usr/src/uts/common/sys/fs/zfs.h
NEX-3558 KRRP Integration

@@ -18,10 +18,11 @@
  *
  * CDDL HEADER END
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
  * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
  */
 
 #ifndef _SYS_METASLAB_H
 #define _SYS_METASLAB_H

@@ -54,30 +55,27 @@
 
 void metaslab_sync(metaslab_t *, uint64_t);
 void metaslab_sync_done(metaslab_t *, uint64_t);
 void metaslab_sync_reassess(metaslab_group_t *);
 uint64_t metaslab_block_maxsize(metaslab_t *);
+void metaslab_auto_trim(metaslab_t *, uint64_t);
 
-#define METASLAB_HINTBP_FAVOR           0x0
-#define METASLAB_HINTBP_AVOID           0x1
-#define METASLAB_GANG_HEADER            0x2
-#define METASLAB_GANG_CHILD             0x4
-#define METASLAB_ASYNC_ALLOC            0x8
+#define METASLAB_HINTBP_FAVOR           0x00
+#define METASLAB_HINTBP_AVOID           0x01
+#define METASLAB_GANG_HEADER            0x02
+#define METASLAB_GANG_CHILD             0x04
+#define METASLAB_ASYNC_ALLOC            0x08
 #define METASLAB_DONT_THROTTLE          0x10
+#define METASLAB_USE_WEIGHT_SECONDARY   0x20
 
 int metaslab_alloc(spa_t *, metaslab_class_t *, uint64_t,
     blkptr_t *, int, uint64_t, blkptr_t *, int, zio_alloc_list_t *, zio_t *);
-int metaslab_alloc_dva(spa_t *, metaslab_class_t *, uint64_t,
-    dva_t *, int, dva_t *, uint64_t, int, zio_alloc_list_t *);
 void metaslab_free(spa_t *, const blkptr_t *, uint64_t, boolean_t);
-void metaslab_free_concrete(vdev_t *, uint64_t, uint64_t, uint64_t);
-void metaslab_free_dva(spa_t *, const dva_t *, uint64_t);
-void metaslab_free_impl_cb(uint64_t, vdev_t *, uint64_t, uint64_t, void *);
-void metaslab_unalloc_dva(spa_t *, const dva_t *, uint64_t);
+void metaslab_free_dva(spa_t *, const dva_t *, uint64_t, boolean_t);
 int metaslab_claim(spa_t *, const blkptr_t *, uint64_t);
-int metaslab_claim_impl(vdev_t *, uint64_t, uint64_t, uint64_t);
 void metaslab_check_free(spa_t *, const blkptr_t *);
+zio_t *metaslab_trim_all(metaslab_t *, uint64_t *);
 
 void metaslab_alloc_trace_init(void);
 void metaslab_alloc_trace_fini(void);
 void metaslab_trace_init(zio_alloc_list_t *);
 void metaslab_trace_fini(zio_alloc_list_t *);

@@ -109,10 +107,13 @@
 uint64_t metaslab_group_fragmentation(metaslab_group_t *);
 void metaslab_group_histogram_remove(metaslab_group_t *, metaslab_t *);
 void metaslab_group_alloc_decrement(spa_t *, uint64_t, void *, int);
 void metaslab_group_alloc_verify(spa_t *, const blkptr_t *, void *);
 
+void metaslab_trimstats_create(spa_t *spa);
+void metaslab_trimstats_destroy(spa_t *spa);
+
 #ifdef  __cplusplus
 }
 #endif
 
 #endif  /* _SYS_METASLAB_H */