The patch titled Subject: Cross Memory Attach: make it Kconfigurable has been added to the -mm tree. Its filename is cross-memory-attach-make-it-kconfigurable.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Christopher Yeoh <cyeoh@xxxxxxxxxxx> Subject: Cross Memory Attach: make it Kconfigurable Add a Kconfig option to allow people who don't want cross memory attach to not have it included in their build. Signed-off-by: Chris Yeoh <yeohc@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/Kconfig | 10 ++++++++++ mm/Makefile | 7 +++++-- 2 files changed, 15 insertions(+), 2 deletions(-) diff -puN mm/Kconfig~cross-memory-attach-make-it-kconfigurable mm/Kconfig --- a/mm/Kconfig~cross-memory-attach-make-it-kconfigurable +++ a/mm/Kconfig @@ -349,6 +349,16 @@ choice benefit. 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 # diff -puN mm/Makefile~cross-memory-attach-make-it-kconfigurable mm/Makefile --- a/mm/Makefile~cross-memory-attach-make-it-kconfigurable +++ a/mm/Makefile @@ -5,8 +5,11 @@ mmu-y := nommu.o mmu-$(CONFIG_MMU) := fremap.o highmem.o madvise.o memory.o mincore.o \ mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \ - vmalloc.o pagewalk.o pgtable-generic.o \ - process_vm_access.o + vmalloc.o pagewalk.o pgtable-generic.o + +ifdef CONFIG_CROSS_MEMORY_ATTACH +mmu-$(CONFIG_MMU) += process_vm_access.o +endif obj-y := filemap.o mempool.o oom_kill.o fadvise.o \ maccess.o page_alloc.o page-writeback.o \ _ Subject: Subject: Cross Memory Attach: make it Kconfigurable Patches currently in -mm which might be from cyeoh@xxxxxxxxxxx are cross-memory-attach-make-it-kconfigurable.patch aio-vfs-cleanup-of-rw_copy_check_uvector-and-compat_rw_copy_check_uvector.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html