X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Fddt.c;h=49428d109f7e379a9acc6d62839d2093b610ca92;hb=c409e4647f221ab724a0bd10c480ac95447203c3;hp=ae9d2a5e139cf6113267952301df58cee314ce0a;hpb=d6320ddb78fa89c4d0fc2af00ae53c7c70992f96;p=zfs.git

diff --git a/module/zfs/ddt.c b/module/zfs/ddt.c
index ae9d2a5..49428d1 100644
--- a/module/zfs/ddt.c
+++ b/module/zfs/ddt.c
@@ -501,6 +501,7 @@ ddt_get_dedup_stats(spa_t *spa, ddt_stat_t *dds_total)
 {
 	ddt_histogram_t *ddh_total;
 
+	/* XXX: Move to a slab */
 	ddh_total = kmem_zalloc(sizeof (ddt_histogram_t), KM_SLEEP);
 	ddt_get_dedup_histogram(spa, ddh_total);
 	ddt_histogram_stat(dds_total, ddh_total);
@@ -649,6 +650,7 @@ ddt_alloc(const ddt_key_t *ddk)
 {
 	ddt_entry_t *dde;
 
+	/* XXX: Move to a slab */
 	dde = kmem_zalloc(sizeof (ddt_entry_t), KM_SLEEP);
 	cv_init(&dde->dde_cv, NULL, CV_DEFAULT, NULL);
 
@@ -797,7 +799,8 @@ ddt_table_alloc(spa_t *spa, enum zio_checksum c)
 {
 	ddt_t *ddt;
 
-	ddt = kmem_zalloc(sizeof (*ddt), KM_SLEEP);
+	/* XXX: Move to a slab */
+	ddt = kmem_zalloc(sizeof (*ddt), KM_SLEEP | KM_NODEBUG);
 
 	mutex_init(&ddt->ddt_lock, NULL, MUTEX_DEFAULT, NULL);
 	avl_create(&ddt->ddt_tree, ddt_entry_compare,
@@ -1184,3 +1187,8 @@ ddt_walk(spa_t *spa, ddt_bookmark_t *ddb, ddt_entry_t *dde)
 
 	return (ENOENT);
 }
+
+#if defined(_KERNEL) && defined(HAVE_SPL)
+module_param(zfs_dedup_prefetch, int, 0644);
+MODULE_PARM_DESC(zfs_dedup_prefetch,"Enable prefetching dedup-ed blks");
+#endif