From 192c58073d9abb1c507c89f109da5dc9f130ba70 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Sun, 11 Mar 2018 11:34:27 +0100 Subject: [PATCH] kernel: add do_getpgid() helper; remove internal call to sys_getpgid() Using the do_getpgid() helper removes an in-kernel call to the sys_getpgid() syscall. This patch is part of a series which removes in-kernel calls to syscalls. On this basis, the syscall entry path can be streamlined. For details, see http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net Cc: Al Viro Signed-off-by: Dominik Brodowski --- 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