[PATCH] mm: Export unmapped_area*() functions

[PATCH] mm: Export unmapped_area*() functions

[Hareesh Gundu]

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

Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
---
 mm/mmap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/mmap.c b/mm/mmap.c
index 924839f..aba4f51 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -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.
-- 
1.9.1

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Re: [PATCH] mm: Export unmapped_area*() functions

[Christoph Hellwig]

On Tue, Dec 05, 2017 at 08:45:27PM +0530, Hareesh Gundu wrote:
> Add EXPORT_SYMBOL to unmapped_area()
> and unmapped_area_topdown(). So they
> are usable from modules.

Please send this along with the actual modules.

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Re: [PATCH] mm: Export unmapped_area*() functions

[Hareesh Gundu]

On 12/5/2017 8:59 PM, Christoph Hellwig wrote:
> On Tue, Dec 05, 2017 at 08:45:27PM +0530, Hareesh Gundu wrote:
>> 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 send this along with the actual modules.
>

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Re: [PATCH] mm: Export unmapped_area*() functions

[Christoph Hellwig]

On Wed, Dec 06, 2017 at 09:00:57PM +0530, Hareesh Gundu wrote:
> On 12/5/2017 8:59 PM, Christoph Hellwig wrote:
>> On Tue, Dec 05, 2017 at 08:45:27PM +0530, Hareesh Gundu wrote:
>>> 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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