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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-20 20:00:39 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 20:15:22 +0200 |
| commit | d969c6fa7263c8fc1928f528bb68587872350b6c (patch) | |
| tree | ea96ad301cb9b73b87838e925411bb7e4d111ce4 /ipc/syscall.c | |
| parent | 69894718a515fef7ff633cf354fcd7ed73a88891 (diff) | |
| download | lwn-d969c6fa7263c8fc1928f528bb68587872350b6c.tar.gz lwn-d969c6fa7263c8fc1928f528bb68587872350b6c.zip | |
ipc: add semctl syscall/compat_syscall wrappers
Provide ksys_semctl() and compat_ksys_semctl() 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_semctl() and compat_sys_semctl().
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 <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'ipc/syscall.c')
| -rw-r--r-- | ipc/syscall.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/ipc/syscall.c b/ipc/syscall.c index 21fcdf0b4836..a536cca37661 100644 --- a/ipc/syscall.c +++ b/ipc/syscall.c @@ -42,7 +42,7 @@ SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second, return -EINVAL; if (get_user(arg, (unsigned long __user *) ptr)) return -EFAULT; - return sys_semctl(first, second, third, arg); + return ksys_semctl(first, second, third, arg); } case MSGSND: @@ -138,7 +138,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second, return -EINVAL; if (get_user(pad, (u32 __user *) compat_ptr(ptr))) return -EFAULT; - return compat_sys_semctl(first, second, third, pad); + return compat_ksys_semctl(first, second, third, pad); case MSGSND: return compat_sys_msgsnd(first, ptr, second, third); |