From: Wei Xu <weixugc@google.com>
To: Huang Ying <ying.huang@intel.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
"Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
Alistair Popple <apopple@nvidia.com>,
Bharata B Rao <bharata@amd.com>,
Dan Williams <dan.j.williams@intel.com>,
Dave Hansen <dave.hansen@intel.com>,
Davidlohr Bueso <dave@stgolabs.net>,
Hesham Almatary <hesham.almatary@huawei.com>,
Jagdish Gediya <jvgediya.oss@gmail.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Michal Hocko <mhocko@kernel.org>, Tim Chen <tim.c.chen@intel.com>,
Yang Shi <shy828301@gmail.com>
Subject: Re: [RFC] memory tier, sysfs: rename attribute "nodes" to "nodes_list"
Date: Mon, 17 Oct 2022 23:27:18 -0700 [thread overview]
Message-ID: <CAAPL-u-9MBPuCrkHf1jzBApukpWCvzqFc-2f5ffEpBDZ3kE3tw@mail.gmail.com> (raw)
In-Reply-To: <20221018052541.265708-1-ying.huang@intel.com>
How about "nodelist", instead of "nodes_list"? It is more concise and
follows the convention of:
/sys/devices/system/nodes/node0/cpulist
Wei
On Mon, Oct 17, 2022 at 10:26 PM Huang Ying <ying.huang@intel.com> wrote:
>
> In sysfs, we use attribute name "cpus" for cpu mask and "cpus_list"
> for cpu list. For example, in my system,
>
> $ cat /sys/devices/system/cpu/cpu2/topology/core_cpus
> 0,00100004
> $ cat /sys/devices/system/cpu/cpu2/topology/core_cpus_list
> 2,20
>
> It looks reasonable to use "nodes" for node mask and "nodes_list" for
> node list. So, rename the attribute to follow the naming convention.
>
> Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
> Cc: Alistair Popple <apopple@nvidia.com>
> Cc: Bharata B Rao <bharata@amd.com>
> Cc: Dan Williams <dan.j.williams@intel.com>
> Cc: Dave Hansen <dave.hansen@intel.com>
> Cc: Davidlohr Bueso <dave@stgolabs.net>
> Cc: Hesham Almatary <hesham.almatary@huawei.com>
> Cc: Jagdish Gediya <jvgediya.oss@gmail.com>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Cc: Michal Hocko <mhocko@kernel.org>
> Cc: Tim Chen <tim.c.chen@intel.com>
> Cc: Wei Xu <weixugc@google.com>
> Cc: Yang Shi <shy828301@gmail.com>
> ---
> Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers | 4 ++--
> mm/memory-tiers.c | 8 ++++----
> 2 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers b/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers
> index 45985e411f13..af07e166f559 100644
> --- a/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers
> +++ b/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers
> @@ -10,7 +10,7 @@ Description: A collection of all the memory tiers allocated.
>
>
> What: /sys/devices/virtual/memory_tiering/memory_tierN/
> - /sys/devices/virtual/memory_tiering/memory_tierN/nodes
> + /sys/devices/virtual/memory_tiering/memory_tierN/nodes_list
> Date: August 2022
> Contact: Linux memory management mailing list <linux-mm@kvack.org>
> Description: Directory with details of a specific memory tier
> @@ -21,5 +21,5 @@ Description: Directory with details of a specific memory tier
> A smaller value of N implies a higher (faster) memory tier in the
> hierarchy.
>
> - nodes: NUMA nodes that are part of this memory tier.
> + nodes_list: NUMA nodes that are part of this memory tier.
>
> diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c
> index f116b7b6333e..8dbfe9ec87d5 100644
> --- a/mm/memory-tiers.c
> +++ b/mm/memory-tiers.c
> @@ -131,8 +131,8 @@ static void memory_tier_device_release(struct device *dev)
> kfree(tier);
> }
>
> -static ssize_t nodes_show(struct device *dev,
> - struct device_attribute *attr, char *buf)
> +static ssize_t nodes_list_show(struct device *dev,
> + struct device_attribute *attr, char *buf)
> {
> int ret;
> nodemask_t nmask;
> @@ -143,10 +143,10 @@ static ssize_t nodes_show(struct device *dev,
> mutex_unlock(&memory_tier_lock);
> return ret;
> }
> -static DEVICE_ATTR_RO(nodes);
> +static DEVICE_ATTR_RO(nodes_list);
>
> static struct attribute *memtier_dev_attrs[] = {
> - &dev_attr_nodes.attr,
> + &dev_attr_nodes_list.attr,
> NULL
> };
>
> --
> 2.35.1
>
next prev parent reply other threads:[~2022-10-18 6:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-18 5:25 [RFC] memory tier, sysfs: rename attribute "nodes" to "nodes_list" Huang Ying
2022-10-18 6:27 ` Wei Xu [this message]
2022-10-18 8:39 ` Huang, Ying
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