Messages in this thread Patch in this message | | | From | "Aneesh Kumar K.V" <> | Subject | [PATCH v6 03/13] mm/demotion: Return error on write to numa_demotion sysfs | Date | Fri, 10 Jun 2022 19:22:19 +0530 |
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With CONFIG_MIGRATION disabled return EINVAL on write.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> --- mm/memory-tiers.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c index 9c6b40d7e0bf..c3123a457d90 100644 --- a/mm/memory-tiers.c +++ b/mm/memory-tiers.c @@ -105,6 +105,9 @@ static ssize_t numa_demotion_enabled_store(struct kobject *kobj, { ssize_t ret; + if (!IS_ENABLED(CONFIG_MIGRATION)) + return -EINVAL; + ret = kstrtobool(buf, &numa_demotion_enabled); if (ret) return ret; -- 2.36.1
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