From c6c4adee65969218b0b7b13f568fd2c6f2333373 Mon Sep 17 00:00:00 2001 From: Tiwei Bie Date: Thu, 24 Oct 2024 22:28:27 +0800 Subject: um: Set parent-death signal for write_sigio thread/process The write_sigio thread is not really a traditional thread. Set the parent-death signal for it to ensure that it will be killed if the UML kernel dies unexpectedly without proper cleanup. Signed-off-by: Tiwei Bie Link: https://patch.msgid.link/20241024142828.2612828-4-tiwei.btw@antgroup.com Signed-off-by: Johannes Berg --- arch/um/os-Linux/sigio.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/um/os-Linux') diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c index 9e71794839e8..9aac8def4d63 100644 --- a/arch/um/os-Linux/sigio.c +++ b/arch/um/os-Linux/sigio.c @@ -55,6 +55,7 @@ static int write_sigio_thread(void *unused) int i, n, respond_fd; char c; + os_set_pdeathsig(); os_fix_helper_signals(); fds = ¤t_poll; while (1) { -- cgit v1.2.3-70-g09d2