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| author | Patrick Wang <patrick.wang.shcn@gmail.com> | 2022-05-21 16:38:23 +0800 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-05-25 10:47:49 -0700 |
| commit | 9aa1af954db02a3228763015356684a169503c68 (patch) | |
| tree | 24f32b1256a3c2c2aa67457ae6041cd6eeb85dbf /scripts/gdb/linux/utils.py | |
| parent | 3d3921ed271b0e23d60c91fcad089f2f5e71af98 (diff) | |
selftests: vm: check numa_available() before operating "merge_across_nodes" in ksm_tests
Patch series "selftests: vm: a few fixup patches".
This series contains three fixup patches for vm selftests. They are
independent. Please see the patches.
This patch (of 3):
Currently, ksm_tests operates "merge_across_nodes" with NUMA either
enabled or disabled. In a system with NUMA disabled, these operations
will fail and output a misleading report given "merge_across_nodes" does
not exist in sysfs:
----------------------------
running ./ksm_tests -M -p 10
----------------------------
f /sys/kernel/mm/ksm/merge_across_nodes
fopen: No such file or directory
Cannot save default tunables
[FAIL]
----------------------
So check numa_available() before those operations to skip them if NUMA is
disabled.
Link: https://lkml.kernel.org/r/20220521083825.319654-1-patrick.wang.shcn@gmail.com
Link: https://lkml.kernel.org/r/20220521083825.319654-2-patrick.wang.shcn@gmail.com
Signed-off-by: Patrick Wang <patrick.wang.shcn@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions