numactl/SOURCES/0002-shm.c-fix-memleak-in-dump_shm.patch

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2021-11-04 03:28:35 +00:00
From 7b5f3e98680f0720f9e6d06b6acdcbf92af4aedd Mon Sep 17 00:00:00 2001
From: Pingfan Liu <piliu@redhat.com>
Date: Thu, 10 Jun 2021 10:54:08 +0800
Subject: [PATCH 2/6] shm.c: fix memleak in dump_shm()
Signed-off-by: Pingfan Liu <piliu@redhat.com>
---
shm.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/shm.c b/shm.c
index 79043c9..c0b6ee3 100644
--- a/shm.c
+++ b/shm.c
@@ -182,7 +182,7 @@ dumppol(unsigned long long start, unsigned long long end, int pol, struct bitmas
/* Dump policies in a shared memory segment. */
void dump_shm(void)
{
- struct bitmask *nodes, *prevnodes;
+ struct bitmask *nodes, *prevnodes, *tag;
int prevpol = -1, pol;
unsigned long long c, start;
@@ -193,7 +193,7 @@ void dump_shm(void)
}
nodes = numa_allocate_nodemask();
- prevnodes = numa_allocate_nodemask();
+ tag = prevnodes = numa_allocate_nodemask();
for (c = 0; c < shmlen; c += shm_pagesize) {
if (get_mempolicy(&pol, nodes->maskp, nodes->size, c+shmptr,
@@ -208,6 +208,8 @@ void dump_shm(void)
start = c;
}
dumppol(start, c, prevpol, prevnodes);
+ numa_free_nodemask(nodes);
+ numa_free_nodemask(tag);
}
static void dumpnode(unsigned long long start, unsigned long long end, int node)
--
2.29.2