From 226b4ccdcb6371645c25ec99b59bfde65987318c Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Wed, 4 Jun 2014 16:10:50 -0700 Subject: mm/process_vm_access: move config option into init/Kconfig CONFIG_CROSS_MEMORY_ATTACH adds couple syscalls: process_vm_readv and process_vm_writev, it's a kind of IPC for copying data between processes. Currently this option is placed inside "Processor type and features". This patch moves it into "General setup" (where all other arch-independed syscalls and ipc features are placed) and changes prompt string to less cryptic. Signed-off-by: Konstantin Khlebnikov Cc: Christopher Yeoh Cc: Davidlohr Bueso Cc: Hugh Dickins Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- init/Kconfig | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'init') diff --git a/init/Kconfig b/init/Kconfig index 0a2f09a..ce034ad 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -261,6 +261,16 @@ config POSIX_MQUEUE_SYSCTL depends on SYSCTL default y +config CROSS_MEMORY_ATTACH + bool "Enable process_vm_readv/writev syscalls" + depends on MMU + default y + help + Enabling this option adds the system calls process_vm_readv and + process_vm_writev which allow a process with the correct privileges + to directly read from or write to to another process's address space. + See the man page for more details. + config FHANDLE bool "open by fhandle syscalls" select EXPORTFS -- cgit v1.1