[PATCH] virtiofsd: Add restart_syscall to the seccomp whitelist

[Greg Kurz]

This is how linux restarts some system calls after SIGSTOP/SIGCONT.
This is needed to avoid virtiofsd termination when resuming execution
under GDB for example.

Signed-off-by: Greg Kurz <groug@kaod.org>
---

This has passed Travis and gitlab CI without errors.

 tools/virtiofsd/passthrough_seccomp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/virtiofsd/passthrough_seccomp.c 
b/tools/virtiofsd/passthrough_seccomp.c
index a60d7da4b4e2..da03e97d35e4 100644
--- a/tools/virtiofsd/passthrough_seccomp.c
+++ b/tools/virtiofsd/passthrough_seccomp.c
@@ -88,6 +88,7 @@ static const int syscall_whitelist[] = {
     SCMP_SYS(renameat),
     SCMP_SYS(renameat2),
     SCMP_SYS(removexattr),
+    SCMP_SYS(restart_syscall),
     SCMP_SYS(rt_sigaction),
     SCMP_SYS(rt_sigprocmask),
     SCMP_SYS(rt_sigreturn),
-- 
2.26.2