diff mbox series

[v2,6/6] drivers/base/memory.c: Get rid of find_memory_block_hinted()

Message ID 20190620103520.23481-7-david@redhat.com (mailing list archive)
State Superseded, archived
Headers show
Series mm: Further memory block device cleanups | expand

Commit Message

David Hildenbrand June 20, 2019, 10:35 a.m. UTC 
No longer needed, let's remove it. Also, drop the "hint" parameter
completely from "find_memory_block_by_id", as nobody needs it anymore.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 drivers/base/memory.c  | 32 ++++++++++----------------------
 include/linux/memory.h |  2 --
 2 files changed, 10 insertions(+), 24 deletions(-)

Comments

David Hildenbrand June 20, 2019, 6:25 p.m. UTC | #1 
On 20.06.19 12:35, David Hildenbrand wrote:
> No longer needed, let's remove it. Also, drop the "hint" parameter
> completely from "find_memory_block_by_id", as nobody needs it anymore.
> 
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: "Rafael J. Wysocki" <rafael@kernel.org>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
> Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
> Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
> Signed-off-by: David Hildenbrand <david@redhat.com>
> ---
>  drivers/base/memory.c  | 32 ++++++++++----------------------
>  include/linux/memory.h |  2 --
>  2 files changed, 10 insertions(+), 24 deletions(-)
> 
> diff --git a/drivers/base/memory.c b/drivers/base/memory.c
> index 0204384b4d1d..fefb64d3588e 100644
> --- a/drivers/base/memory.c
> +++ b/drivers/base/memory.c
> @@ -592,26 +592,12 @@ int __weak arch_get_memory_phys_device(unsigned long start_pfn)
>   * A reference for the returned object is held and the reference for the
>   * hinted object is released.
>   */

I'll fixup this comment as well (yes, I desperately need vacation :) )
diff mbox series

Patch

diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 0204384b4d1d..fefb64d3588e 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -592,26 +592,12 @@  int __weak arch_get_memory_phys_device(unsigned long start_pfn)
  * A reference for the returned object is held and the reference for the
  * hinted object is released.
  */
-static struct memory_block *find_memory_block_by_id(unsigned long block_id,
-						    struct memory_block *hint)
+static struct memory_block *find_memory_block_by_id(unsigned long block_id)
 {
-	struct device *hintdev = hint ? &hint->dev : NULL;
 	struct device *dev;
 
-	dev = subsys_find_device_by_id(&memory_subsys, block_id, hintdev);
-	if (hint)
-		put_device(&hint->dev);
-	if (!dev)
-		return NULL;
-	return to_memory_block(dev);
-}
-
-struct memory_block *find_memory_block_hinted(struct mem_section *section,
-					      struct memory_block *hint)
-{
-	unsigned long block_id = base_memory_block_id(__section_nr(section));
-
-	return find_memory_block_by_id(block_id, hint);
+	dev = subsys_find_device_by_id(&memory_subsys, block_id, NULL);
+	return dev ? to_memory_block(dev) : NULL;
 }
 
 /*
@@ -624,7 +610,9 @@  struct memory_block *find_memory_block_hinted(struct mem_section *section,
  */
 struct memory_block *find_memory_block(struct mem_section *section)
 {
-	return find_memory_block_hinted(section, NULL);
+	unsigned long block_id = base_memory_block_id(__section_nr(section));
+
+	return find_memory_block_by_id(block_id);
 }
 
 static struct attribute *memory_memblk_attrs[] = {
@@ -675,7 +663,7 @@  static int init_memory_block(struct memory_block **memory,
 	unsigned long start_pfn;
 	int ret = 0;
 
-	mem = find_memory_block_by_id(block_id, NULL);
+	mem = find_memory_block_by_id(block_id);
 	if (mem) {
 		put_device(&mem->dev);
 		return -EEXIST;
@@ -755,7 +743,7 @@  int create_memory_block_devices(unsigned long start, unsigned long size)
 		end_block_id = block_id;
 		for (block_id = start_block_id; block_id != end_block_id;
 		     block_id++) {
-			mem = find_memory_block_by_id(block_id, NULL);
+			mem = find_memory_block_by_id(block_id);
 			mem->section_count = 0;
 			unregister_memory(mem);
 		}
@@ -782,7 +770,7 @@  void remove_memory_block_devices(unsigned long start, unsigned long size)
 
 	mutex_lock(&mem_sysfs_mutex);
 	for (block_id = start_block_id; block_id != end_block_id; block_id++) {
-		mem = find_memory_block_by_id(block_id, NULL);
+		mem = find_memory_block_by_id(block_id);
 		if (WARN_ON_ONCE(!mem))
 			continue;
 		mem->section_count = 0;
@@ -882,7 +870,7 @@  int walk_memory_blocks(unsigned long start, unsigned long size,
 	int ret = 0;
 
 	for (block_id = start_block_id; block_id <= end_block_id; block_id++) {
-		mem = find_memory_block_by_id(block_id, NULL);
+		mem = find_memory_block_by_id(block_id);
 		if (!mem)
 			continue;
 
diff --git a/include/linux/memory.h b/include/linux/memory.h
index b3b388775a30..02e633f3ede0 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -116,8 +116,6 @@  void remove_memory_block_devices(unsigned long start, unsigned long size);
 extern int memory_dev_init(void);
 extern int memory_notify(unsigned long val, void *v);
 extern int memory_isolate_notify(unsigned long val, void *v);
-extern struct memory_block *find_memory_block_hinted(struct mem_section *,
-							struct memory_block *);
 extern struct memory_block *find_memory_block(struct mem_section *);
 typedef int (*walk_memory_blocks_func_t)(struct memory_block *, void *);
 extern int walk_memory_blocks(unsigned long start, unsigned long size,