[v3,08/11] mm/memory_hotplug: Drop MHP_MEMBLOCK_API
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Message ID 20190527111152.16324-9-david@redhat.com
State New
Headers show
Series
  • [v3,01/11] mm/memory_hotplug: Simplify and fix check_hotplug_memory_range()
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Commit Message

David Hildenbrand May 27, 2019, 11:11 a.m. UTC
No longer needed, the callers of arch_add_memory() can handle this
manually.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Qian Cai <cai@lca.pw>
Cc: Arun KS <arunks@codeaurora.org>
Cc: Mathieu Malaterre <malat@debian.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 include/linux/memory_hotplug.h | 8 --------
 mm/memory_hotplug.c            | 9 +++------
 2 files changed, 3 insertions(+), 14 deletions(-)

Comments

Wei Yang June 4, 2019, 9:47 p.m. UTC | #1
On Mon, May 27, 2019 at 01:11:49PM +0200, David Hildenbrand wrote:
>No longer needed, the callers of arch_add_memory() can handle this
>manually.
>
>Cc: Andrew Morton <akpm@linux-foundation.org>
>Cc: David Hildenbrand <david@redhat.com>
>Cc: Michal Hocko <mhocko@suse.com>
>Cc: Oscar Salvador <osalvador@suse.com>
>Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
>Cc: Wei Yang <richard.weiyang@gmail.com>
>Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>Cc: Qian Cai <cai@lca.pw>
>Cc: Arun KS <arunks@codeaurora.org>
>Cc: Mathieu Malaterre <malat@debian.org>
>Signed-off-by: David Hildenbrand <david@redhat.com>

Reviewed-by: Wei Yang <richardw.yang@linux.intel.com>

>---
> include/linux/memory_hotplug.h | 8 --------
> mm/memory_hotplug.c            | 9 +++------
> 2 files changed, 3 insertions(+), 14 deletions(-)
>
>diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
>index 2d4de313926d..2f1f87e13baa 100644
>--- a/include/linux/memory_hotplug.h
>+++ b/include/linux/memory_hotplug.h
>@@ -128,14 +128,6 @@ extern void arch_remove_memory(int nid, u64 start, u64 size,
> extern void __remove_pages(struct zone *zone, unsigned long start_pfn,
> 			   unsigned long nr_pages, struct vmem_altmap *altmap);
> 
>-/*
>- * Do we want sysfs memblock files created. This will allow userspace to online
>- * and offline memory explicitly. Lack of this bit means that the caller has to
>- * call move_pfn_range_to_zone to finish the initialization.
>- */
>-
>-#define MHP_MEMBLOCK_API               (1<<0)
>-
> /* reasonably generic interface to expand the physical pages */
> extern int __add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages,
> 		       struct mhp_restrictions *restrictions);
>diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
>index b1fde90bbf19..9a92549ef23b 100644
>--- a/mm/memory_hotplug.c
>+++ b/mm/memory_hotplug.c
>@@ -251,7 +251,7 @@ void __init register_page_bootmem_info_node(struct pglist_data *pgdat)
> #endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */
> 
> static int __meminit __add_section(int nid, unsigned long phys_start_pfn,
>-		struct vmem_altmap *altmap, bool want_memblock)
>+				   struct vmem_altmap *altmap)
> {
> 	int ret;
> 
>@@ -294,8 +294,7 @@ int __ref __add_pages(int nid, unsigned long phys_start_pfn,
> 	}
> 
> 	for (i = start_sec; i <= end_sec; i++) {
>-		err = __add_section(nid, section_nr_to_pfn(i), altmap,
>-				restrictions->flags & MHP_MEMBLOCK_API);
>+		err = __add_section(nid, section_nr_to_pfn(i), altmap);
> 
> 		/*
> 		 * EEXIST is finally dealt with by ioresource collision
>@@ -1067,9 +1066,7 @@ static int online_memory_block(struct memory_block *mem, void *arg)
>  */
> int __ref add_memory_resource(int nid, struct resource *res)
> {
>-	struct mhp_restrictions restrictions = {
>-		.flags = MHP_MEMBLOCK_API,
>-	};
>+	struct mhp_restrictions restrictions = {};
> 	u64 start, size;
> 	bool new_node = false;
> 	int ret;
>-- 
>2.20.1
Michal Hocko July 1, 2019, 8:15 a.m. UTC | #2
On Mon 27-05-19 13:11:49, David Hildenbrand wrote:
> No longer needed, the callers of arch_add_memory() can handle this
> manually.
> 
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: David Hildenbrand <david@redhat.com>
> Cc: Michal Hocko <mhocko@suse.com>
> Cc: Oscar Salvador <osalvador@suse.com>
> Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
> Cc: Wei Yang <richard.weiyang@gmail.com>
> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
> Cc: Qian Cai <cai@lca.pw>
> Cc: Arun KS <arunks@codeaurora.org>
> Cc: Mathieu Malaterre <malat@debian.org>
> Signed-off-by: David Hildenbrand <david@redhat.com>

Acked-by: Michal Hocko <mhocko@suse.com>

> ---
>  include/linux/memory_hotplug.h | 8 --------
>  mm/memory_hotplug.c            | 9 +++------
>  2 files changed, 3 insertions(+), 14 deletions(-)
> 
> diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
> index 2d4de313926d..2f1f87e13baa 100644
> --- a/include/linux/memory_hotplug.h
> +++ b/include/linux/memory_hotplug.h
> @@ -128,14 +128,6 @@ extern void arch_remove_memory(int nid, u64 start, u64 size,
>  extern void __remove_pages(struct zone *zone, unsigned long start_pfn,
>  			   unsigned long nr_pages, struct vmem_altmap *altmap);
>  
> -/*
> - * Do we want sysfs memblock files created. This will allow userspace to online
> - * and offline memory explicitly. Lack of this bit means that the caller has to
> - * call move_pfn_range_to_zone to finish the initialization.
> - */
> -
> -#define MHP_MEMBLOCK_API               (1<<0)
> -
>  /* reasonably generic interface to expand the physical pages */
>  extern int __add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages,
>  		       struct mhp_restrictions *restrictions);
> diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
> index b1fde90bbf19..9a92549ef23b 100644
> --- a/mm/memory_hotplug.c
> +++ b/mm/memory_hotplug.c
> @@ -251,7 +251,7 @@ void __init register_page_bootmem_info_node(struct pglist_data *pgdat)
>  #endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */
>  
>  static int __meminit __add_section(int nid, unsigned long phys_start_pfn,
> -		struct vmem_altmap *altmap, bool want_memblock)
> +				   struct vmem_altmap *altmap)
>  {
>  	int ret;
>  
> @@ -294,8 +294,7 @@ int __ref __add_pages(int nid, unsigned long phys_start_pfn,
>  	}
>  
>  	for (i = start_sec; i <= end_sec; i++) {
> -		err = __add_section(nid, section_nr_to_pfn(i), altmap,
> -				restrictions->flags & MHP_MEMBLOCK_API);
> +		err = __add_section(nid, section_nr_to_pfn(i), altmap);
>  
>  		/*
>  		 * EEXIST is finally dealt with by ioresource collision
> @@ -1067,9 +1066,7 @@ static int online_memory_block(struct memory_block *mem, void *arg)
>   */
>  int __ref add_memory_resource(int nid, struct resource *res)
>  {
> -	struct mhp_restrictions restrictions = {
> -		.flags = MHP_MEMBLOCK_API,
> -	};
> +	struct mhp_restrictions restrictions = {};
>  	u64 start, size;
>  	bool new_node = false;
>  	int ret;
> -- 
> 2.20.1
>

Patch
diff mbox series

diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 2d4de313926d..2f1f87e13baa 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -128,14 +128,6 @@  extern void arch_remove_memory(int nid, u64 start, u64 size,
 extern void __remove_pages(struct zone *zone, unsigned long start_pfn,
 			   unsigned long nr_pages, struct vmem_altmap *altmap);
 
-/*
- * Do we want sysfs memblock files created. This will allow userspace to online
- * and offline memory explicitly. Lack of this bit means that the caller has to
- * call move_pfn_range_to_zone to finish the initialization.
- */
-
-#define MHP_MEMBLOCK_API               (1<<0)
-
 /* reasonably generic interface to expand the physical pages */
 extern int __add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages,
 		       struct mhp_restrictions *restrictions);
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index b1fde90bbf19..9a92549ef23b 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -251,7 +251,7 @@  void __init register_page_bootmem_info_node(struct pglist_data *pgdat)
 #endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */
 
 static int __meminit __add_section(int nid, unsigned long phys_start_pfn,
-		struct vmem_altmap *altmap, bool want_memblock)
+				   struct vmem_altmap *altmap)
 {
 	int ret;
 
@@ -294,8 +294,7 @@  int __ref __add_pages(int nid, unsigned long phys_start_pfn,
 	}
 
 	for (i = start_sec; i <= end_sec; i++) {
-		err = __add_section(nid, section_nr_to_pfn(i), altmap,
-				restrictions->flags & MHP_MEMBLOCK_API);
+		err = __add_section(nid, section_nr_to_pfn(i), altmap);
 
 		/*
 		 * EEXIST is finally dealt with by ioresource collision
@@ -1067,9 +1066,7 @@  static int online_memory_block(struct memory_block *mem, void *arg)
  */
 int __ref add_memory_resource(int nid, struct resource *res)
 {
-	struct mhp_restrictions restrictions = {
-		.flags = MHP_MEMBLOCK_API,
-	};
+	struct mhp_restrictions restrictions = {};
 	u64 start, size;
 	bool new_node = false;
 	int ret;