* [PATCH] samples/sockmap: Make signal handling safer
@ 2017-11-09 14:15 SF Markus Elfring
0 siblings, 0 replies; only message in thread
From: SF Markus Elfring @ 2017-11-09 14:15 UTC (permalink / raw)
To: kernel-janitors, Alexei Starovoitov, David S. Miller, John Fastabend; +Cc: LKML
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 9 Nov 2017 15:06:16 +0100
Use the data type "sig_atomic_t" for the variable "running"
so that it can be safely modified by a signal handler.
Fixes: 69e8cc134bcbf0ccfcf852c400b8e6788d1d0038 ("bpf: sockmap sample program")
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
samples/sockmap/sockmap_user.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/samples/sockmap/sockmap_user.c b/samples/sockmap/sockmap_user.c
index 7cc9d228216f..6e3ebbb1f8f4 100644
--- a/samples/sockmap/sockmap_user.c
+++ b/samples/sockmap/sockmap_user.c
@@ -39,7 +39,7 @@
#include "../bpf/bpf_util.h"
#include "../bpf/libbpf.h"
-int running;
+static sig_atomic_t running;
void running_handler(int a);
/* randomly selected ports for testing on lo */
--
2.15.0
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