X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Farc.c;fp=module%2Fzfs%2Farc.c;h=32ad80bcb5b0c575042f2d2bdc96e5911a432793;hb=fadd0c4da1e2ccd6014800d8b1a0fd117dd323e8;hp=ce4a0239c0c0ba18370fd9ea43cb2b176fb90e05;hpb=68121a03daf58a7d5b9351f110196b8ce806e1fa;p=zfs.git

diff --git a/module/zfs/arc.c b/module/zfs/arc.c
index ce4a023..32ad80b 100644
--- a/module/zfs/arc.c
+++ b/module/zfs/arc.c
@@ -2104,8 +2104,9 @@ arc_do_user_evicts(void)
 void
 arc_adjust_meta(int64_t adjustment, boolean_t may_prune)
 {
-	int64_t delta;
+	int64_t delta, tmp = adjustment;
 
+	/* Evict MRU+MFU meta data to ghost lists */
 	if (adjustment > 0 && arc_mru->arcs_lsize[ARC_BUFC_METADATA] > 0) {
 		delta = MIN(arc_mru->arcs_lsize[ARC_BUFC_METADATA], adjustment);
 		arc_evict(arc_mru, 0, delta, FALSE, ARC_BUFC_METADATA);
@@ -2115,9 +2116,24 @@ arc_adjust_meta(int64_t adjustment, boolean_t may_prune)
 	if (adjustment > 0 && arc_mfu->arcs_lsize[ARC_BUFC_METADATA] > 0) {
 		delta = MIN(arc_mfu->arcs_lsize[ARC_BUFC_METADATA], adjustment);
 		arc_evict(arc_mfu, 0, delta, FALSE, ARC_BUFC_METADATA);
+	}
+
+	/* Evict ghost MRU+MFU meta data */
+	adjustment = tmp;
+
+	if (adjustment > 0 && arc_mru_ghost->arcs_size > 0) {
+		delta = MIN(arc_mru_ghost->arcs_size, adjustment);
+		arc_evict_ghost(arc_mru_ghost, 0, delta, ARC_BUFC_METADATA);
+		adjustment -= delta;
+	}
+
+	if (adjustment > 0 && arc_mfu_ghost->arcs_size > 0) {
+		delta = MIN(arc_mfu_ghost->arcs_size, adjustment);
+		arc_evict_ghost(arc_mfu_ghost, 0, delta, ARC_BUFC_METADATA);
 		adjustment -= delta;
 	}
 
+	/* Request the VFS release some meta data */
 	if (may_prune && (adjustment > 0) && (arc_meta_used > arc_meta_limit))
 		arc_do_user_prune(zfs_arc_meta_prune);
 }