From: Jan Stancek <jstancek@redhat.com>
To: ltp-list@lists.sourceforge.net
Cc: Jeffrey Burke <jburke@redhat.com>
Subject: [LTP] [PATCH 0/3] add CMA test
Date: Mon, 23 Apr 2012 12:31:53 +0200 [thread overview]
Message-ID: <4F952F99.4010407@redhat.com> (raw)
CMA (cross memory attach) feature introduced 2 new syscalls:
process_vm_readv
process_vm_writev
commit fcf634098c00dd9cd247447368495f0b79be12d1
Author: Christopher Yeoh <cyeoh@au1.ibm.com>
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):
configure: check if process_vm_read/write is supported
add testcases/kernel/syscalls/cma
syscalls/cma: add errno tests
configure.ac | 1 +
m4/ltp-cma.m4 | 67 +++
testcases/kernel/syscalls/cma/Makefile | 22 +
testcases/kernel/syscalls/cma/cma01.c | 434 ++++++++++++++++++++
.../kernel/syscalls/cma/process_vm_readv/Makefile | 29 ++
.../kernel/syscalls/cma/process_vm_writev/Makefile | 29 ++
6 files changed, 582 insertions(+)
create mode 100644 m4/ltp-cma.m4
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_readv/Makefile
create mode 100644 testcases/kernel/syscalls/cma/process_vm_writev/Makefile
-- 1.7.9.3
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