From e340db56483b6e10bd5e5f281071876808801a41 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Tue, 20 Mar 2018 20:15:28 +0100 Subject: ipc: add msgctl syscall/compat_syscall wrappers Provide ksys_msgctl() and compat_ksys_msgctl() wrappers to avoid in-kernel calls to these syscalls. The ksys_ prefix denotes that these functions are meant as a drop-in replacement for the syscalls. In particular, they use the same calling convention as sys_msgctl() and compat_sys_msgctl(). 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 Cc: Andrew Morton Signed-off-by: Dominik Brodowski --- ipc/syscall.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'ipc/syscall.c') diff --git a/ipc/syscall.c b/ipc/syscall.c index 34bbabc9e672..aa29b0802e26 100644 --- a/ipc/syscall.c +++ b/ipc/syscall.c @@ -70,7 +70,8 @@ SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second, case MSGGET: return ksys_msgget((key_t) first, second); case MSGCTL: - return sys_msgctl(first, second, (struct msqid_ds __user *)ptr); + return ksys_msgctl(first, second, + (struct msqid_ds __user *)ptr); case SHMAT: switch (version) { @@ -163,7 +164,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second, case MSGGET: return ksys_msgget(first, second); case MSGCTL: - return compat_sys_msgctl(first, second, compat_ptr(ptr)); + return compat_ksys_msgctl(first, second, compat_ptr(ptr)); case SHMAT: { int err; -- cgit v1.2.3-59-g8ed1b