From da1e2744341542e404c172bcf6a321f509408b14 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Tue, 20 Mar 2018 20:09:48 +0100 Subject: ipc: add shmdt syscall wrapper Provide ksys_shmdt() wrapper to avoid in-kernel calls to this syscall. The ksys_ prefix denotes that this function is meant as a drop-in replacement for the syscall. In particular, it uses the same calling convention as sys_shmdt(). 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 | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'ipc/syscall.c') diff --git a/ipc/syscall.c b/ipc/syscall.c index 60bceb19b6f0..b3aa71564815 100644 --- a/ipc/syscall.c +++ b/ipc/syscall.c @@ -90,7 +90,7 @@ SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second, return -EINVAL; } case SHMDT: - return sys_shmdt((char __user *)ptr); + return ksys_shmdt((char __user *)ptr); case SHMGET: return ksys_shmget(first, second, third); case SHMCTL: @@ -178,7 +178,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second, return put_user(raddr, (compat_ulong_t __user *)compat_ptr(third)); } case SHMDT: - return sys_shmdt(compat_ptr(ptr)); + return ksys_shmdt(compat_ptr(ptr)); case SHMGET: return ksys_shmget(first, (unsigned int)second, third); case SHMCTL: -- cgit v1.2.3-59-g8ed1b