From c84d0791dfa7fe8f051082c09a558eb3e2d01931 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Tue, 20 Mar 2018 20:12:33 +0100 Subject: ipc: add shmctl syscall/compat_syscall wrappers Provide ksys_shmctl() and compat_ksys_shmctl() 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_shmctl() and compat_sys_shmctl(). 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 b3aa71564815..34bbabc9e672 100644 --- a/ipc/syscall.c +++ b/ipc/syscall.c @@ -94,7 +94,7 @@ SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second, case SHMGET: return ksys_shmget(first, second, third); case SHMCTL: - return sys_shmctl(first, second, + return ksys_shmctl(first, second, (struct shmid_ds __user *) ptr); default: return -ENOSYS; @@ -182,7 +182,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second, case SHMGET: return ksys_shmget(first, (unsigned int)second, third); case SHMCTL: - return compat_sys_shmctl(first, second, compat_ptr(ptr)); + return compat_ksys_shmctl(first, second, compat_ptr(ptr)); } return -ENOSYS; -- cgit v1.2.3