linux-kernel - [PATCH 04/12] Account the nr

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Message-Id: <1351115423-9025-5-git-send-email-acme@infradead.org>
Date:	Wed, 24 Oct 2012 19:50:15 -0200
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	"Suzuki K. Poulose" <suzuki@...ibm.com>,
	"David S. Ahern" <dsahern@...il.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 04/12] Account the nr_entries in rblist properly

From: "Suzuki K. Poulose" <suzuki@...ibm.com>

The nr_entries in rblist is never decremented when an element
is deleted. Also, use rblist__remove_node to delete a node in
rblist__delete(). This would keep the nr_entries sane.

Signed-off-by: Suzuki K. Poulose <suzuki@...ibm.com>
Acked-by: David S. Ahern <dsahern@...il.com>
Cc: David S. Ahern <dsahern@...il.com>
Link: http://lkml.kernel.org/r/20120831070834.14806.87398.stgit@suzukikp.in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/rblist.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/rblist.c b/tools/perf/util/rblist.c
index 0171fb6..a16cdd2 100644
--- a/tools/perf/util/rblist.c
+++ b/tools/perf/util/rblist.c
@@ -44,6 +44,7 @@ int rblist__add_node(struct rblist *rblist, const void *new_entry)
 void rblist__remove_node(struct rblist *rblist, struct rb_node *rb_node)
 {
 	rb_erase(rb_node, &rblist->entries);
+	--rblist->nr_entries;
 	rblist->node_delete(rblist, rb_node);
 }
 
@@ -87,8 +88,7 @@ void rblist__delete(struct rblist *rblist)
 		while (next) {
 			pos = next;
 			next = rb_next(pos);
-			rb_erase(pos, &rblist->entries);
-			rblist->node_delete(rblist, pos);
+			rblist__remove_node(rblist, pos);
 		}
 		free(rblist);
 	}
-- 
1.7.9.2.358.g22243

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