1 files changed, 10 insertions, 1 deletions

diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index b0b7ef6d0de1..f82c2eaa859d 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -84,6 +84,7 @@ int output_lines = -1;
 int sort_loss;
 int extended_totals;
 int show_bytes;
+int unreclaim_only;
 
 /* Debug options */
 int sanity;
@@ -133,6 +134,7 @@ static void usage(void)
                 "-L|--Loss              Sort by loss\n"
                 "-X|--Xtotals           Show extended summary information\n"
                 "-B|--Bytes             Show size in bytes\n"
+                "-U|--Unreclaim         Show unreclaimable slabs only\n"
                 "\nValid debug options (FZPUT may be combined)\n"
                 "a / A          Switch on all debug options (=FZUP)\n"
                 "-              Switch off all debug options\n"
@@ -569,6 +571,9 @@ static void slabcache(struct slabinfo *s)
         if (strcmp(s->name, "*") == 0)
                 return;
 
+        if (unreclaim_only && s->reclaim_account)
+                return;
+
         if (actual_slabs == 1) {
                 report(s);
                 return;
@@ -1347,6 +1352,7 @@ struct option opts[] = {
         { "Loss", no_argument, NULL, 'L'},
         { "Xtotals", no_argument, NULL, 'X'},
         { "Bytes", no_argument, NULL, 'B'},
+        { "Unreclaim", no_argument, NULL, 'U'},
         { NULL, 0, NULL, 0 }
 };
 
@@ -1358,7 +1364,7 @@ int main(int argc, char *argv[])
 
         page_size = getpagesize();
 
-        while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTSN:LXB",
+        while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTSN:LXBU",
                                                 opts, NULL)) != -1)
                 switch (c) {
                 case '1':
@@ -1439,6 +1445,9 @@ int main(int argc, char *argv[])
                 case 'B':
                         show_bytes = 1;
                         break;
+                case 'U':
+                        unreclaim_only = 1;
+                        break;
                 default:
                         fatal("%s: Invalid option '%c'\n", argv[0], optopt);