Messages in this thread | | | Subject | Re: [PATCH v6 03/13] mm/demotion: Return error on write to numa_demotion sysfs | From | Ying Huang <> | Date | Mon, 13 Jun 2022 11:26:55 +0800 |
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On Fri, 2022-06-10 at 19:22 +0530, Aneesh Kumar K.V wrote: > 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; > +
How about enclose numa_demotion_enabled_xxx related code with CONFIG_MIGRATION?
> ret = kstrtobool(buf, &numa_demotion_enabled); > if (ret) > return ret;
Best Regards, Huang, Ying
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