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From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>,
	Jason Gunthorpe <jgg@mellanox.com>
Cc: linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org,
	Bharata B Rao <bharata@linux.ibm.com>,
	linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 2/4] memremap: remove the dev field in struct dev_pagemap
Date: Sun, 18 Aug 2019 11:05:55 +0200	[thread overview]
Message-ID: <20190818090557.17853-3-hch@lst.de> (raw)
In-Reply-To: <20190818090557.17853-1-hch@lst.de>

The dev field in struct dev_pagemap is only used to print dev_name in
two places, which are at best nice to have.  Just remove the field
and thus the name in those two messages.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
---
 include/linux/memremap.h | 1 -
 kernel/memremap.c        | 6 +-----
 mm/page_alloc.c          | 2 +-
 3 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/include/linux/memremap.h b/include/linux/memremap.h
index f8a5b2a19945..8f0013e18e14 100644
--- a/include/linux/memremap.h
+++ b/include/linux/memremap.h
@@ -109,7 +109,6 @@ struct dev_pagemap {
 	struct percpu_ref *ref;
 	struct percpu_ref internal_ref;
 	struct completion done;
-	struct device *dev;
 	enum memory_type type;
 	unsigned int flags;
 	u64 pci_p2pdma_bus_offset;
diff --git a/kernel/memremap.c b/kernel/memremap.c
index 6ee03a816d67..600a14cbe663 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -96,7 +96,6 @@ static void dev_pagemap_cleanup(struct dev_pagemap *pgmap)
 static void devm_memremap_pages_release(void *data)
 {
 	struct dev_pagemap *pgmap = data;
-	struct device *dev = pgmap->dev;
 	struct resource *res = &pgmap->res;
 	unsigned long pfn;
 	int nid;
@@ -123,8 +122,7 @@ static void devm_memremap_pages_release(void *data)
 
 	untrack_pfn(NULL, PHYS_PFN(res->start), resource_size(res));
 	pgmap_array_delete(res);
-	dev_WARN_ONCE(dev, pgmap->altmap.alloc,
-		      "%s: failed to free all reserved pages\n", __func__);
+	WARN_ONCE(pgmap->altmap.alloc, "failed to free all reserved pages\n");
 }
 
 static void dev_pagemap_percpu_release(struct percpu_ref *ref)
@@ -245,8 +243,6 @@ void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap)
 		goto err_array;
 	}
 
-	pgmap->dev = dev;
-
 	error = xa_err(xa_store_range(&pgmap_array, PHYS_PFN(res->start),
 				PHYS_PFN(res->end), pgmap, GFP_KERNEL));
 	if (error)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 272c6de1bf4e..b39baa2b1faf 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5982,7 +5982,7 @@ void __ref memmap_init_zone_device(struct zone *zone,
 		}
 	}
 
-	pr_info("%s initialised, %lu pages in %ums\n", dev_name(pgmap->dev),
+	pr_info("%s initialised %lu pages in %ums\n", __func__,
 		size, jiffies_to_msecs(jiffies - start));
 }
 
-- 
2.20.1

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WARNING: multiple messages have this Message-ID
From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>,
	Jason Gunthorpe <jgg@mellanox.com>
Cc: Bharata B Rao <bharata@linux.ibm.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	linux-nvdimm@lists.01.org, Ira Weiny <ira.weiny@intel.com>
Subject: [PATCH 2/4] memremap: remove the dev field in struct dev_pagemap
Date: Sun, 18 Aug 2019 11:05:55 +0200	[thread overview]
Message-ID: <20190818090557.17853-3-hch@lst.de> (raw)
In-Reply-To: <20190818090557.17853-1-hch@lst.de>

The dev field in struct dev_pagemap is only used to print dev_name in
two places, which are at best nice to have.  Just remove the field
and thus the name in those two messages.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
---
 include/linux/memremap.h | 1 -
 kernel/memremap.c        | 6 +-----
 mm/page_alloc.c          | 2 +-
 3 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/include/linux/memremap.h b/include/linux/memremap.h
index f8a5b2a19945..8f0013e18e14 100644
--- a/include/linux/memremap.h
+++ b/include/linux/memremap.h
@@ -109,7 +109,6 @@ struct dev_pagemap {
 	struct percpu_ref *ref;
 	struct percpu_ref internal_ref;
 	struct completion done;
-	struct device *dev;
 	enum memory_type type;
 	unsigned int flags;
 	u64 pci_p2pdma_bus_offset;
diff --git a/kernel/memremap.c b/kernel/memremap.c
index 6ee03a816d67..600a14cbe663 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -96,7 +96,6 @@ static void dev_pagemap_cleanup(struct dev_pagemap *pgmap)
 static void devm_memremap_pages_release(void *data)
 {
 	struct dev_pagemap *pgmap = data;
-	struct device *dev = pgmap->dev;
 	struct resource *res = &pgmap->res;
 	unsigned long pfn;
 	int nid;
@@ -123,8 +122,7 @@ static void devm_memremap_pages_release(void *data)
 
 	untrack_pfn(NULL, PHYS_PFN(res->start), resource_size(res));
 	pgmap_array_delete(res);
-	dev_WARN_ONCE(dev, pgmap->altmap.alloc,
-		      "%s: failed to free all reserved pages\n", __func__);
+	WARN_ONCE(pgmap->altmap.alloc, "failed to free all reserved pages\n");
 }
 
 static void dev_pagemap_percpu_release(struct percpu_ref *ref)
@@ -245,8 +243,6 @@ void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap)
 		goto err_array;
 	}
 
-	pgmap->dev = dev;
-
 	error = xa_err(xa_store_range(&pgmap_array, PHYS_PFN(res->start),
 				PHYS_PFN(res->end), pgmap, GFP_KERNEL));
 	if (error)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 272c6de1bf4e..b39baa2b1faf 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5982,7 +5982,7 @@ void __ref memmap_init_zone_device(struct zone *zone,
 		}
 	}
 
-	pr_info("%s initialised, %lu pages in %ums\n", dev_name(pgmap->dev),
+	pr_info("%s initialised %lu pages in %ums\n", __func__,
 		size, jiffies_to_msecs(jiffies - start));
 }
 
-- 
2.20.1


  parent reply	other threads:[~2019-08-18  9:14 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-18  9:05 add a not device managed memremap_pages v3 Christoph Hellwig
2019-08-18  9:05 ` [PATCH 1/4] resource: add a not device managed request_free_mem_region variant Christoph Hellwig
2019-08-18  9:05   ` Christoph Hellwig
2019-08-20  1:28   ` Dan Williams
2019-08-20  1:28     ` Dan Williams
2019-08-20  1:28     ` Dan Williams
2019-08-20  2:26     ` Christoph Hellwig
2019-08-20  2:26       ` Christoph Hellwig
2019-08-20  4:38       ` Dan Williams
2019-08-20  4:38         ` Dan Williams
2019-08-20  4:38         ` Dan Williams
2019-08-18  9:05 ` Christoph Hellwig [this message]
2019-08-18  9:05   ` [PATCH 2/4] memremap: remove the dev field in struct dev_pagemap Christoph Hellwig
2019-08-20  1:44   ` Dan Williams
2019-08-20  1:44     ` Dan Williams
2019-08-20 13:26     ` Jason Gunthorpe
2019-08-21  2:58       ` Dan Williams
2019-08-21  2:58         ` Dan Williams
2019-08-21  2:58         ` Dan Williams
2019-08-21 16:24         ` Jason Gunthorpe
2019-08-21 16:24           ` Jason Gunthorpe
2019-08-21 23:51           ` Jason Gunthorpe
2019-08-21 23:51             ` Jason Gunthorpe
2019-08-22  3:39             ` Dan Williams
2019-08-22  3:39               ` Dan Williams
2019-08-22  3:39               ` Dan Williams
2019-08-18  9:05 ` [PATCH 3/4] memremap: don't use a separate devm action for devmap_managed_enable_get Christoph Hellwig
2019-08-18  9:05   ` Christoph Hellwig
2019-08-20  2:22   ` Dan Williams
2019-08-20  2:22     ` Dan Williams
2019-08-20  2:22     ` Dan Williams
2019-08-18  9:05 ` [PATCH 4/4] memremap: provide a not device managed memremap_pages Christoph Hellwig
2019-08-18  9:05   ` Christoph Hellwig
2019-08-20  2:24   ` Dan Williams
2019-08-20  2:24     ` Dan Williams
2019-08-20  2:24     ` Dan Williams
2019-08-19  5:27 ` add a not device managed memremap_pages v3 Bharata B Rao
2019-08-19  6:30   ` Christoph Hellwig
2019-08-19  6:30     ` Christoph Hellwig
2019-08-20 13:26 ` Jason Gunthorpe
  -- strict thread matches above, loose matches on Subject: below --
2019-08-16  6:54 add a not device managed memremap_pages v2 Christoph Hellwig
2019-08-16  6:54 ` [PATCH 2/4] memremap: remove the dev field in struct dev_pagemap Christoph Hellwig
2019-08-16  6:54   ` Christoph Hellwig

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