On Fri, Jul 24, 2015 at 05:28:40PM -0400, Eric B Munson wrote:
> With the refactored mlock code, introduce a new system call for mlock.
> The new call will allow the user to specify what lock states are being
> added.  mlock2 is trivial at the moment, but a follow on patch will add
> a new mlock state making it useful.
> 
> Signed-off-by: Eric B Munson <emun...@akamai.com>
> Cc: Michal Hocko <mho...@suse.cz>
> Cc: Vlastimil Babka <vba...@suse.cz>
> Cc: Heiko Carstens <heiko.carst...@de.ibm.com>
> Cc: Geert Uytterhoeven <ge...@linux-m68k.org>
> Cc: Catalin Marinas <catalin.mari...@arm.com>
> Cc: Stephen Rothwell <s...@canb.auug.org.au>
> Cc: Guenter Roeck <li...@roeck-us.net>
> Cc: linux-al...@vger.kernel.org
> Cc: linux-ker...@vger.kernel.org
> Cc: linux-arm-ker...@lists.infradead.org
> Cc: adi-buildroot-de...@lists.sourceforge.net
> Cc: linux-cris-ker...@axis.com
> Cc: linux-i...@vger.kernel.org
> Cc: linux-m...@lists.linux-m68k.org
> Cc: linux-am33-l...@redhat.com
> Cc: linux-par...@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-s...@vger.kernel.org
> Cc: linux...@vger.kernel.org
> Cc: sparcli...@vger.kernel.org
> Cc: linux-xte...@linux-xtensa.org
> Cc: linux-...@vger.kernel.org
> Cc: linux-a...@vger.kernel.org
> Cc: linux...@kvack.org
> ---
> Changes from V4:
> * Drop all architectures except x86[_64] from this patch, MIPS is added
>   later in the series.  All others will be left to their maintainers.
> 
> Changes from V3:
> * Do a (hopefully) complete job of adding the new system calls
>  arch/alpha/include/uapi/asm/mman.h     | 2 ++
>  arch/mips/include/uapi/asm/mman.h      | 5 +++++
>  arch/parisc/include/uapi/asm/mman.h    | 2 ++
>  arch/powerpc/include/uapi/asm/mman.h   | 2 ++
>  arch/sparc/include/uapi/asm/mman.h     | 2 ++
>  arch/tile/include/uapi/asm/mman.h      | 5 +++++
>  arch/x86/entry/syscalls/syscall_32.tbl | 1 +
>  arch/x86/entry/syscalls/syscall_64.tbl | 1 +
>  arch/xtensa/include/uapi/asm/mman.h    | 5 +++++

Define MLOCK_LOCKED in include/uapi/asm-generic/mman-common.h.
This way you can drop changes in powerpc, sparc and tile.

Otherwise looks good.

-- 
 Kirill A. Shutemov
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