Improve N-way mirror performance

[zfs.git] / include / sys / metaslab.h

diff --git a/include/sys/metaslab.h b/include/sys/metaslab.h
index 2cf4d2b..9991242 100644 (file)
--- a/include/sys/metaslab.h
+++ b/include/sys/metaslab.h
@@ -50,12 +50,15 @@ extern void metaslab_sync_reassess(metaslab_group_t *mg);
 #define        METASLAB_GANG_HEADER    0x2
 #define        METASLAB_GANG_CHILD     0x4
 #define        METASLAB_GANG_AVOID     0x8
+#define        METASLAB_FASTWRITE      0x10
 
 extern int metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize,
     blkptr_t *bp, int ncopies, uint64_t txg, blkptr_t *hintbp, int flags);
 extern void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg,
     boolean_t now);
 extern int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg);
+extern void metaslab_fastwrite_mark(spa_t *spa, const blkptr_t *bp);
+extern void metaslab_fastwrite_unmark(spa_t *spa, const blkptr_t *bp);
 
 extern metaslab_class_t *metaslab_class_create(spa_t *spa,
     space_map_ops_t *ops);