numa_helper has been used for syscalls testcases, which
care about nodes with memory. Based on discussion here:
http://article.gmane.org/gmane.linux.ltp/16325
it was deemed, that 'flag' extension would be useful,
to allow tests to ask for nodes with memory/cpu/both.
This patch series is introducing flag to get_allowed_nodes().
For example, a config like this one:
# numactl -H
available: 3 nodes (2,4-5)
node 2 cpus: 0
node 2 size: 511 MB
node 2 free: 88 MB
node 4 cpus:
node 4 size: 256 MB
node 4 free: 34 MB
node 5 cpus:
node 5 size: 255 MB
node 5 free: 59 MB
would return:
nodes (flag=0): 2 4 5 (any)
nodes (flag=1): 2 4 5 (mem)
nodes (flag=2): 2 (cpus)
nodes (flag=3): 2 (mem and cpus)
Tested with:
numactl-devel-0.9.8-7.el5
numactl-devel-2.0.3-9.el6
numactl-devel-2.0.7-6.el7
numa_node_to_cpus() is broken in older libnuma < 1, so cpumap
is used instead.
Next step (not part of this series) is to move it outside
syscalls area, so it can be used by other testcases.
Jan Stancek (2):
numa_helper: add flag to get_allowed_nodes()
update testcases to use flag for get_allowed_nodes()
.../syscalls/get_mempolicy/get_mempolicy01.c | 5 +-
testcases/kernel/syscalls/mbind/mbind01.c | 5 +-
.../kernel/syscalls/move_pages/move_pages02.c | 5 +-
.../kernel/syscalls/move_pages/move_pages03.c | 5 +-
.../kernel/syscalls/move_pages/move_pages04.c | 5 +-
.../kernel/syscalls/move_pages/move_pages05.c | 5 +-
.../kernel/syscalls/move_pages/move_pages06.c | 5 +-
.../kernel/syscalls/move_pages/move_pages07.c | 5 +-
.../kernel/syscalls/move_pages/move_pages08.c | 5 +-
.../kernel/syscalls/move_pages/move_pages09.c | 5 +-
.../kernel/syscalls/move_pages/move_pages10.c | 5 +-
.../kernel/syscalls/move_pages/move_pages11.c | 5 +-
.../syscalls/move_pages/move_pages_support.c | 8 +-
testcases/kernel/syscalls/numa/lib/numa_helper.c | 211 +++++++++++++++-----
testcases/kernel/syscalls/numa/lib/numa_helper.h | 8 +-
15 files changed, 203 insertions(+), 84 deletions(-)
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