From: Ira Weiny <ira.weiny@intel.com>
To: Neeraj Kumar <s.neeraj@samsung.com>, <linux-cxl@vger.kernel.org>,
<nvdimm@lists.linux.dev>, <linux-kernel@vger.kernel.org>,
<gost.dev@samsung.com>
Cc: <a.manzanares@samsung.com>, <vishak.g@samsung.com>,
<neeraj.kernel@gmail.com>, Neeraj Kumar <s.neeraj@samsung.com>
Subject: Re: [PATCH V2 02/20] nvdimm/label: Prep patch to accommodate cxl lsa 2.1 support
Date: Tue, 19 Aug 2025 10:38:56 -0500 [thread overview]
Message-ID: <68a49a905dd78_27db95294b@iweiny-mobl.notmuch> (raw)
In-Reply-To: <20250730121209.303202-3-s.neeraj@samsung.com>
Neeraj Kumar wrote:
> LSA 2.1 format introduces region label, which can also reside
> into LSA along with only namespace label as per v1.1 and v1.2
>
> As both namespace and region labels are of same size of 256 bytes.
Soft-NAK
Having 2 data structures of the same size is not a reason to combine their
types.
Please explain how nd_namespace_label is related to the new region label
and why combining them is a net benefit. This change may need to be made
later in the series if that makes it more understandable.
> Thus renamed "struct nd_namespace_label" to "struct nd_lsa_label",
> where both namespace label and region label can stay as union.
For now I'm naking this patch unless there is some justification for
changing all the names vs just introducing "nd_region_label" or whatever
it might need to be named.
Ira
>
> No functional change introduced.
>
> Signed-off-by: Neeraj Kumar <s.neeraj@samsung.com>
[snip]
next prev parent reply other threads:[~2025-08-19 15:37 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20250730121221epcas5p3ffb9e643af6b8ae07cfccf0bdee90e37@epcas5p3.samsung.com>
2025-07-30 12:11 ` [PATCH V2 00/20] Add CXL LSA 2.1 format support in nvdimm and cxl pmem Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 01/20] nvdimm/label: Introduce NDD_CXL_LABEL flag to set cxl label format Neeraj Kumar
2025-08-13 13:12 ` Jonathan Cameron
2025-08-15 18:06 ` Dave Jiang
2025-09-04 13:24 ` Neeraj Kumar
2025-09-04 13:20 ` Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 02/20] nvdimm/label: Prep patch to accommodate cxl lsa 2.1 support Neeraj Kumar
2025-08-13 13:23 ` Jonathan Cameron
2025-09-04 13:27 ` Neeraj Kumar
2025-08-15 22:02 ` Dave Jiang
2025-09-04 13:31 ` Neeraj Kumar
2025-08-18 21:48 ` Dave Jiang
2025-09-04 13:33 ` Neeraj Kumar
2025-08-19 15:38 ` Ira Weiny [this message]
2025-09-04 13:42 ` Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 03/20] nvdimm/namespace_label: Add namespace label changes as per CXL LSA v2.1 Neeraj Kumar
2025-07-31 13:12 ` kernel test robot
2025-08-13 13:27 ` Jonathan Cameron
2025-09-04 13:40 ` Neeraj Kumar
2025-08-19 15:57 ` Ira Weiny
2025-09-04 13:51 ` Neeraj Kumar
2025-08-19 19:36 ` Ira Weiny
2025-09-05 5:34 ` Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 04/20] nvdimm/label: CXL labels skip the need for 'interleave-set cookie' Neeraj Kumar
2025-08-13 13:44 ` Jonathan Cameron
2025-09-04 13:54 ` Neeraj Kumar
2025-08-15 21:02 ` Dave Jiang
2025-09-04 14:01 ` Neeraj Kumar
2025-08-19 16:04 ` Ira Weiny
2025-09-04 14:02 ` Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 05/20] nvdimm/region_label: Add region label updation routine Neeraj Kumar
2025-07-31 15:07 ` kernel test robot
2025-08-13 14:48 ` Jonathan Cameron
2025-09-04 14:06 ` Neeraj Kumar
2025-08-15 21:55 ` Dave Jiang
2025-09-04 14:12 ` Neeraj Kumar
2025-09-10 14:03 ` Jonathan Cameron
2025-08-15 23:12 ` Dave Jiang
2025-09-04 14:13 ` Neeraj Kumar
2025-08-19 18:16 ` Ira Weiny
2025-09-04 14:18 ` Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 06/20] nvdimm/region_label: Add region label deletion routine Neeraj Kumar
2025-08-13 14:53 ` Jonathan Cameron
2025-09-04 14:20 ` Neeraj Kumar
2025-08-15 22:22 ` Dave Jiang
2025-09-04 14:23 ` Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 07/20] nvdimm/namespace_label: Update namespace init_labels and its region_uuid Neeraj Kumar
2025-08-13 14:58 ` Jonathan Cameron
2025-09-04 14:24 ` Neeraj Kumar
2025-08-19 18:56 ` Ira Weiny
2025-09-04 14:28 ` Neeraj Kumar
2025-09-05 20:08 ` Ira Weiny
2025-09-08 5:36 ` Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 08/20] nvdimm/label: Include region label in slot validation Neeraj Kumar
2025-08-13 15:07 ` Jonathan Cameron
2025-09-04 14:30 ` Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 09/20] nvdimm/namespace_label: Skip region label during ns label DPA reservation Neeraj Kumar
2025-08-13 15:09 ` Jonathan Cameron
2025-09-04 14:31 ` Neeraj Kumar
2025-07-30 12:11 ` [PATCH V2 10/20] nvdimm/region_label: Preserve cxl region information from region label Neeraj Kumar
2025-08-13 15:11 ` Jonathan Cameron
2025-09-04 14:33 ` Neeraj Kumar
2025-07-30 12:12 ` [PATCH V2 11/20] nvdimm/region_label: Export routine to fetch region information Neeraj Kumar
2025-08-13 15:13 ` Jonathan Cameron
2025-07-30 12:12 ` [PATCH V2 12/20] nvdimm/namespace_label: Skip region label during namespace creation Neeraj Kumar
2025-08-13 15:55 ` Jonathan Cameron
2025-09-04 14:34 ` Neeraj Kumar
2025-07-30 12:12 ` [PATCH V2 13/20] cxl/mem: Refactor cxl pmem region auto-assembling Neeraj Kumar
2025-08-20 16:41 ` Dave Jiang
2025-09-04 14:39 ` Neeraj Kumar
2025-07-30 12:12 ` [PATCH V2 14/20] cxl/region: Add devm_cxl_pmem_add_region() for pmem region creation Neeraj Kumar
2025-08-20 0:30 ` Dave Jiang
2025-09-04 14:55 ` Neeraj Kumar
2025-07-30 12:12 ` [PATCH V2 15/20] cxl: Add a routine to find cxl root decoder on cxl bus using cxl port Neeraj Kumar
2025-07-30 12:12 ` [PATCH V2 16/20] cxl/mem: Preserve cxl root decoder during mem probe Neeraj Kumar
2025-07-30 12:12 ` [PATCH V2 17/20] cxl/pmem: Preserve region information into nd_set Neeraj Kumar
2025-07-30 12:12 ` [PATCH V2 18/20] cxl/pmem: Add support of cxl lsa 2.1 support in cxl pmem Neeraj Kumar
2025-07-31 1:36 ` kernel test robot
2025-07-30 12:12 ` [PATCH V2 19/20] cxl/pmem_region: Prep patch to accommodate pmem_region attributes Neeraj Kumar
2025-07-31 1:57 ` kernel test robot
2025-07-31 2:17 ` kernel test robot
2025-07-30 12:12 ` [PATCH V2 20/20] cxl/pmem_region: Add sysfs attribute cxl region label updation/deletion Neeraj Kumar
2025-07-31 10:36 ` kernel test robot
2025-08-07 9:02 ` [PATCH V2 00/20] Add CXL LSA 2.1 format support in nvdimm and cxl pmem Neeraj Kumar
2025-08-12 21:46 ` Dave Jiang
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