[1/2] memblock: remove memblock_{set,clear}_region_flags
diff mbox series

Message ID 1549455025-17706-2-git-send-email-rppt@linux.ibm.com
State Accepted
Commit fe145124dbe53c86bf32b941b2f2f88f891d985d
Headers show
Series
  • memblock: minor cleanups
Related show

Commit Message

Mike Rapoport Feb. 6, 2019, 12:10 p.m. UTC
The memblock API provides dedicated helpers to set or clear a flag on a
memory region, e.g. memblock_{mark,clear}_hotplug().

The memblock_{set,clear}_region_flags() functions are used only by the
memblock internal function that adjusts the region flags.
Drop these functions and use open-coded implementation instead.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 include/linux/memblock.h | 12 ------------
 mm/memblock.c            |  9 ++++++---
 2 files changed, 6 insertions(+), 15 deletions(-)

Comments

Souptick Joarder Feb. 7, 2019, 4:32 p.m. UTC | #1
On Wed, Feb 6, 2019 at 6:01 PM Mike Rapoport <rppt@linux.ibm.com> wrote:
>
> The memblock API provides dedicated helpers to set or clear a flag on a
> memory region, e.g. memblock_{mark,clear}_hotplug().
>
> The memblock_{set,clear}_region_flags() functions are used only by the
> memblock internal function that adjusts the region flags.
> Drop these functions and use open-coded implementation instead.
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> ---
>  include/linux/memblock.h | 12 ------------
>  mm/memblock.c            |  9 ++++++---
>  2 files changed, 6 insertions(+), 15 deletions(-)
>
> diff --git a/include/linux/memblock.h b/include/linux/memblock.h
> index 71c9e32..32a9a6b 100644
> --- a/include/linux/memblock.h
> +++ b/include/linux/memblock.h
> @@ -317,18 +317,6 @@ void __next_mem_pfn_range_in_zone(u64 *idx, struct zone *zone,
>         for_each_mem_range_rev(i, &memblock.memory, &memblock.reserved, \
>                                nid, flags, p_start, p_end, p_nid)
>
> -static inline void memblock_set_region_flags(struct memblock_region *r,
> -                                            enum memblock_flags flags)
> -{
> -       r->flags |= flags;
> -}
> -
> -static inline void memblock_clear_region_flags(struct memblock_region *r,
> -                                              enum memblock_flags flags)
> -{
> -       r->flags &= ~flags;
> -}
> -
>  #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
>  int memblock_set_node(phys_addr_t base, phys_addr_t size,
>                       struct memblock_type *type, int nid);
> diff --git a/mm/memblock.c b/mm/memblock.c
> index 0151a5b..af5fe8e 100644
> --- a/mm/memblock.c
> +++ b/mm/memblock.c
> @@ -851,11 +851,14 @@ static int __init_memblock memblock_setclr_flag(phys_addr_t base,
>         if (ret)
>                 return ret;
>
> -       for (i = start_rgn; i < end_rgn; i++)
> +       for (i = start_rgn; i < end_rgn; i++) {
> +               struct memblock_region *r = &type->regions[i];

Is it fine if we drop this memblock_region *r altogether ?

> +
>                 if (set)
> -                       memblock_set_region_flags(&type->regions[i], flag);
> +                       r->flags |= flag;
>                 else
> -                       memblock_clear_region_flags(&type->regions[i], flag);
> +                       r->flags &= ~flag;
> +       }
>
>         memblock_merge_regions(type);
>         return 0;
> --
> 2.7.4
>
Mike Rapoport Feb. 8, 2019, 10:04 a.m. UTC | #2
On Thu, Feb 07, 2019 at 10:02:24PM +0530, Souptick Joarder wrote:
> On Wed, Feb 6, 2019 at 6:01 PM Mike Rapoport <rppt@linux.ibm.com> wrote:
> >
> > The memblock API provides dedicated helpers to set or clear a flag on a
> > memory region, e.g. memblock_{mark,clear}_hotplug().
> >
> > The memblock_{set,clear}_region_flags() functions are used only by the
> > memblock internal function that adjusts the region flags.
> > Drop these functions and use open-coded implementation instead.
> >
> > Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> > ---
> >  include/linux/memblock.h | 12 ------------
> >  mm/memblock.c            |  9 ++++++---
> >  2 files changed, 6 insertions(+), 15 deletions(-)
> >
> > diff --git a/include/linux/memblock.h b/include/linux/memblock.h
> > index 71c9e32..32a9a6b 100644
> > --- a/include/linux/memblock.h
> > +++ b/include/linux/memblock.h
> > @@ -317,18 +317,6 @@ void __next_mem_pfn_range_in_zone(u64 *idx, struct zone *zone,
> >         for_each_mem_range_rev(i, &memblock.memory, &memblock.reserved, \
> >                                nid, flags, p_start, p_end, p_nid)
> >
> > -static inline void memblock_set_region_flags(struct memblock_region *r,
> > -                                            enum memblock_flags flags)
> > -{
> > -       r->flags |= flags;
> > -}
> > -
> > -static inline void memblock_clear_region_flags(struct memblock_region *r,
> > -                                              enum memblock_flags flags)
> > -{
> > -       r->flags &= ~flags;
> > -}
> > -
> >  #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
> >  int memblock_set_node(phys_addr_t base, phys_addr_t size,
> >                       struct memblock_type *type, int nid);
> > diff --git a/mm/memblock.c b/mm/memblock.c
> > index 0151a5b..af5fe8e 100644
> > --- a/mm/memblock.c
> > +++ b/mm/memblock.c
> > @@ -851,11 +851,14 @@ static int __init_memblock memblock_setclr_flag(phys_addr_t base,
> >         if (ret)
> >                 return ret;
> >
> > -       for (i = start_rgn; i < end_rgn; i++)
> > +       for (i = start_rgn; i < end_rgn; i++) {
> > +               struct memblock_region *r = &type->regions[i];
> 
> Is it fine if we drop this memblock_region *r altogether ?

I prefer using a local variable to

	type->regions[i].flags
 
> > +
> >                 if (set)
> > -                       memblock_set_region_flags(&type->regions[i], flag);
> > +                       r->flags |= flag;
> >                 else
> > -                       memblock_clear_region_flags(&type->regions[i], flag);
> > +                       r->flags &= ~flag;
> > +       }
> >
> >         memblock_merge_regions(type);
> >         return 0;
> > --
> > 2.7.4
> >
>

Patch
diff mbox series

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 71c9e32..32a9a6b 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -317,18 +317,6 @@  void __next_mem_pfn_range_in_zone(u64 *idx, struct zone *zone,
 	for_each_mem_range_rev(i, &memblock.memory, &memblock.reserved,	\
 			       nid, flags, p_start, p_end, p_nid)
 
-static inline void memblock_set_region_flags(struct memblock_region *r,
-					     enum memblock_flags flags)
-{
-	r->flags |= flags;
-}
-
-static inline void memblock_clear_region_flags(struct memblock_region *r,
-					       enum memblock_flags flags)
-{
-	r->flags &= ~flags;
-}
-
 #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
 int memblock_set_node(phys_addr_t base, phys_addr_t size,
 		      struct memblock_type *type, int nid);
diff --git a/mm/memblock.c b/mm/memblock.c
index 0151a5b..af5fe8e 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -851,11 +851,14 @@  static int __init_memblock memblock_setclr_flag(phys_addr_t base,
 	if (ret)
 		return ret;
 
-	for (i = start_rgn; i < end_rgn; i++)
+	for (i = start_rgn; i < end_rgn; i++) {
+		struct memblock_region *r = &type->regions[i];
+
 		if (set)
-			memblock_set_region_flags(&type->regions[i], flag);
+			r->flags |= flag;
 		else
-			memblock_clear_region_flags(&type->regions[i], flag);
+			r->flags &= ~flag;
+	}
 
 	memblock_merge_regions(type);
 	return 0;