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mm/process_vm_access: move config option into init/Kconfig

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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 <koct9i@gmail.com>
Cc: Christopher Yeoh <cyeoh@au1.ibm.com>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Konstantin Khlebnikov 2014-06-04 16:10:50 -07:00 committed by Linus Torvalds
parent 1a501907bb
commit 226b4ccdcb
2 changed files with 10 additions and 10 deletions
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10
init/Kconfig
View File

@ -261,6 +261,16 @@ config POSIX_MQUEUE_SYSCTL
depends on SYSCTL depends on SYSCTL
default y 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 config FHANDLE
bool "open by fhandle syscalls" bool "open by fhandle syscalls"
select EXPORTFS select EXPORTFS

10
mm/Kconfig
View File

@ -436,16 +436,6 @@ choice
benefit. benefit.
endchoice endchoice
config CROSS_MEMORY_ATTACH
bool "Cross Memory Support"
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.
# #
# UP and nommu archs use km based percpu allocator # UP and nommu archs use km based percpu allocator
# #