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From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 5/7] libnvdimm/pfn: Remove dax_label_reserve
Date: Tue, 12 Feb 2019 13:25:06 -0800	[thread overview]
Message-ID: <155000670671.348031.8414677031368179860.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <155000668075.348031.9371497273408112600.stgit@dwillia2-desk3.amr.corp.intel.com>

The reserve was for an abandoned effort to add label (partitioning
support) to device-dax instances. Remove it.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/nvdimm/pfn_devs.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index 108f9f7ed064..110699f4c3e4 100644
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -696,7 +696,6 @@ static void trim_pfn_device(struct nd_pfn *nd_pfn, u32 *start_pad, u32 *end_trun
 
 static int nd_pfn_init(struct nd_pfn *nd_pfn)
 {
-	u32 dax_label_reserve = is_nd_dax(&nd_pfn->dev) ? SZ_128K : 0;
 	struct nd_namespace_common *ndns = nd_pfn->ndns;
 	struct nd_namespace_io *nsio = to_nd_namespace_io(&ndns->dev);
 	u32 start_pad, end_trunc, reserve = info_block_reserve();
@@ -754,11 +753,10 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn)
 		 * when populating the vmemmap. This *should* be equal to
 		 * PMD_SIZE for most architectures.
 		 */
-		offset = ALIGN(start + reserve + 64 * npfns + dax_label_reserve,
+		offset = ALIGN(start + reserve + 64 * npfns,
 				max(nd_pfn->align, PMD_SIZE)) - start;
 	} else if (nd_pfn->mode == PFN_MODE_RAM)
-		offset = ALIGN(start + reserve + dax_label_reserve,
-				nd_pfn->align) - start;
+		offset = ALIGN(start + reserve, nd_pfn->align) - start;
 	else
 		return -ENXIO;
 

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WARNING: multiple messages have this Message-ID (diff)
From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Cc: linux-kernel@vger.kernel.org, vishal.l.verma@intel.com,
	linux-fsdevel@vger.kernel.org
Subject: [PATCH 5/7] libnvdimm/pfn: Remove dax_label_reserve
Date: Tue, 12 Feb 2019 13:25:06 -0800	[thread overview]
Message-ID: <155000670671.348031.8414677031368179860.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <155000668075.348031.9371497273408112600.stgit@dwillia2-desk3.amr.corp.intel.com>

The reserve was for an abandoned effort to add label (partitioning
support) to device-dax instances. Remove it.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/nvdimm/pfn_devs.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index 108f9f7ed064..110699f4c3e4 100644
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -696,7 +696,6 @@ static void trim_pfn_device(struct nd_pfn *nd_pfn, u32 *start_pad, u32 *end_trun
 
 static int nd_pfn_init(struct nd_pfn *nd_pfn)
 {
-	u32 dax_label_reserve = is_nd_dax(&nd_pfn->dev) ? SZ_128K : 0;
 	struct nd_namespace_common *ndns = nd_pfn->ndns;
 	struct nd_namespace_io *nsio = to_nd_namespace_io(&ndns->dev);
 	u32 start_pad, end_trunc, reserve = info_block_reserve();
@@ -754,11 +753,10 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn)
 		 * when populating the vmemmap. This *should* be equal to
 		 * PMD_SIZE for most architectures.
 		 */
-		offset = ALIGN(start + reserve + 64 * npfns + dax_label_reserve,
+		offset = ALIGN(start + reserve + 64 * npfns,
 				max(nd_pfn->align, PMD_SIZE)) - start;
 	} else if (nd_pfn->mode == PFN_MODE_RAM)
-		offset = ALIGN(start + reserve + dax_label_reserve,
-				nd_pfn->align) - start;
+		offset = ALIGN(start + reserve, nd_pfn->align) - start;
 	else
 		return -ENXIO;
 


  parent reply	other threads:[~2019-02-12 21:37 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-12 21:24 [PATCH 0/7] libnvdimm/pfn: Fix section-alignment padding Dan Williams
2019-02-12 21:24 ` Dan Williams
2019-02-12 21:24 ` [PATCH 1/7] libnvdimm/pfn: Account for PAGE_SIZE > info-block-size in nd_pfn_init() Dan Williams
2019-02-12 21:24   ` Dan Williams
2019-02-12 21:24 ` [PATCH 2/7] libnvdimm/pmem: Honor force_raw for legacy pmem regions Dan Williams
2019-02-12 21:24   ` Dan Williams
     [not found]   ` <155000669130.348031.13764885263577554365.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2019-02-15 15:48     ` Sasha Levin
2019-02-18 21:14     ` Sasha Levin
2019-02-12 21:24 ` [PATCH 3/7] dax: Check the end of the block-device capacity with dax_direct_access() Dan Williams
2019-02-12 21:24   ` Dan Williams
2019-02-13 10:22   ` Jan Kara
2019-02-13 10:22     ` Jan Kara
2019-02-13 16:49     ` Dan Williams
2019-02-13 16:49       ` Dan Williams
2019-02-21  5:15       ` [PATCH v2] " Dan Williams
2019-02-21  5:15         ` Dan Williams
2019-02-12 21:25 ` [PATCH 4/7] libnvdimm/pfn: Introduce super-block minimum version requirements Dan Williams
2019-02-12 21:25   ` Dan Williams
2019-02-12 21:25 ` Dan Williams [this message]
2019-02-12 21:25   ` [PATCH 5/7] libnvdimm/pfn: Remove dax_label_reserve Dan Williams
2019-02-12 21:25 ` [PATCH 6/7] libnvdimm/pfn: Introduce 'struct pfn_map_info' Dan Williams
2019-02-12 21:25   ` Dan Williams
2019-02-12 21:25 ` [PATCH 7/7] libnvdimm/pfn: Fix 'start_pad' implementation Dan Williams
2019-02-12 21:25   ` Dan Williams
2019-02-21 23:47   ` Jeff Moyer
2019-02-21 23:47     ` Jeff Moyer
2019-02-22  3:58     ` Dan Williams
2019-02-22  3:58       ` Dan Williams
2019-02-22  3:58       ` Dan Williams
2019-02-22 15:42       ` Jeff Moyer
2019-02-22 15:42         ` Jeff Moyer
2019-02-22 17:12         ` Dan Williams
2019-02-22 17:12           ` Dan Williams
2019-02-22 17:12           ` Dan Williams
2019-02-22 17:21           ` Jeff Moyer
2019-02-22 17:21             ` Jeff Moyer
2019-02-22 17:21             ` Jeff Moyer
2019-02-20 17:11 ` [PATCH 0/7] libnvdimm/pfn: Fix section-alignment padding Dan Williams
2019-02-20 17:11   ` Dan Williams
2019-02-20 17:19   ` Johannes Thumshirn
2019-02-20 17:19     ` Johannes Thumshirn
2019-02-20 17:45   ` Jeff Moyer
2019-02-20 17:45     ` Jeff Moyer

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