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mm: Export unmapped_area*() functions

PATCH In review Hareesh Gundu 2 participants 4 messages Dec 5, 2017 – Dec 6, 2017

Subsystems (2)
Memory management Memory mapping
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Hareesh Gundu

author
#0 lore raw

PATCH 1/1 mm: Export unmapped_area*() functions

Add EXPORT_SYMBOL to unmapped_area()
and unmapped_area_topdown(). So they
are usable from modules.

Signed-off-by Hareesh Gundu <[email protected]>
---
 mm/mmap.c | 2 ++
 1 file changed, 2 insertions(+)
mm/mmap.c +2 -0
index 924839f..aba4f51 100644
@@ -1882,6 +1882,7 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info)
 	VM_BUG_ON(gap_start + info->length > gap_end);
 	return gap_start;
 }
+EXPORT_SYMBOL(unmapped_area);
 
 unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
 {

@@ -1981,6 +1982,7 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
 	VM_BUG_ON(gap_end < gap_start);
 	return gap_end;
 }
+EXPORT_SYMBOL(unmapped_area_topdown);
 
 /* Get an address range which is currently unmapped.
  * For shmat() with addr=0.
Signature · 7 lines
1.9.1

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author
#2 lore raw
Quoted 4 lines · Christoph Hellwig
Quoted 3 lines · Hareesh Gundu

Add EXPORT_SYMBOL to unmapped_area()
and unmapped_area_topdown(). So they
are usable from modules.

This change is not for in-tree kernel module. It's for modules built outside of kernel tree modules.

Quoted 2 lines

Please send this along with the actual modules.

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#3 lore raw
Quoted 7 lines · Hareesh Gundu
Quoted 4 lines · Christoph Hellwig
Quoted 3 lines · Hareesh Gundu

Add EXPORT_SYMBOL to unmapped_area()
and unmapped_area_topdown(). So they
are usable from modules.

This change is not for in-tree kernel module. It's for modules built outside of kernel tree modules.

Please prepare the modules for kernel inclusion first, and then we can understand what you are doing and propose the right solution.

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