Re: [LTP] [PATCH v2 0/3] add CMA test

[Wanlong G. <gao...@cn...>]

On 05/22/2012 10:17 PM, Jan Stancek wrote:
> changes in v2
> - dropped configure check as glibc wrapper calls syscall directly,
>   and using syscall(2) we can test also when glibc wrappers are missing
> - added simplified process_vm.h
> 
> CMA (cross memory attach) feature introduced 2 new syscalls:
> process_vm_readv
> process_vm_writev

Hi Jan,

This series is also lost, please send in one thread for reviewing if you can.

Thanks,
Wanlong Gao

> 
> commit fcf634098c00dd9cd247447368495f0b79be12d1
> Author: Christopher Yeoh <cy...@au...>
> Date: Mon Oct 31 17:06:39 2011 -0700
> Cross Memory Attach
> 
> "The basic idea behind cross memory attach is to allow MPI programs doing
> intra-node communication to do a single copy of the message rather than
> a double copy of the message via shared memory." [1]
> 
> This patch series is introducing the initial structure under syscalls/cma
> and first test to check various errno codes as described in proposed man
> page [2].
> 
> [1] http://lwn.net/Articles/451188/
> [2] http://ozlabs.org/~cyeoh/cma/process_vm_readv.txt
> 
> Jan Stancek (3):
>   add testcases/kernel/syscalls/cma
>   cma: add process_vm.h
>   syscalls/cma: add errno tests
> 
>  runtest/syscalls                                   |    3 +
>  testcases/kernel/syscalls/cma/Makefile             |   22 +
>  testcases/kernel/syscalls/cma/cma01.c              |  421 ++++++++++++++++++++
>  testcases/kernel/syscalls/cma/process_vm.h         |   58 +++
>  .../kernel/syscalls/cma/process_vm_readv/Makefile  |   29 ++
>  .../kernel/syscalls/cma/process_vm_writev/Makefile |   29 ++
>  6 files changed, 562 insertions(+), 0 deletions(-)
>  create mode 100644 testcases/kernel/syscalls/cma/Makefile
>  create mode 100644 testcases/kernel/syscalls/cma/cma01.c
>  create mode 100644 testcases/kernel/syscalls/cma/process_vm.h
>  create mode 100644 testcases/kernel/syscalls/cma/process_vm_readv/Makefile
>  create mode 100644 testcases/kernel/syscalls/cma/process_vm_writev/Makefile
> 
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