[RFC PATCH 04/35] syscalls: do not call sys_getpgid() within the kernel

From: Dominik Brodowski
Date: Sun Mar 11 2018 - 06:57:04 EST


CC: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>
---
kernel/sys.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index f2289de20e19..ebb138b841c8 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1027,7 +1027,7 @@ SYSCALL_DEFINE2(setpgid, pid_t, pid, pid_t, pgid)
return err;
}

-SYSCALL_DEFINE1(getpgid, pid_t, pid)
+static int do_getpgid(pid_t pid)
{
struct task_struct *p;
struct pid *grp;
@@ -1055,11 +1055,16 @@ SYSCALL_DEFINE1(getpgid, pid_t, pid)
return retval;
}

+SYSCALL_DEFINE1(getpgid, pid_t, pid)
+{
+ return do_getpgid(pid);
+}
+
#ifdef __ARCH_WANT_SYS_GETPGRP

SYSCALL_DEFINE0(getpgrp)
{
- return sys_getpgid(0);
+ return do_getpgid(0);
}

#endif
--
2.16.2