2013/04/24 6:05, Toshi Kani wrote:
On Tue, 2013-04-23 at 10:37 +0900, Yasuaki Ishimatsu wrote:
:
The reason why the messages are shown is to release a resource structure,
allocated by bootmem, by kfree(). So when we release a resource structure,
we should check whether it is allocated by bootmem or not.
But even if we know a resource structure is allocated by bootmem, we cannot
release it since SLxB cannot treat it. So for reusing a resource structure,
this patch remembers it by using bootmem_resource as follows:
When releasing a resource structure by free_resource(), free_resource() checks
whether the resource structure is allocated by bootmem or not. If it is
allocated by bootmem, free_resource() adds it to bootmem_resource. If it is
not allocated by bootmem, free_resource() release it by kfree().
And when getting a new resource structure by get_resource(), get_resource()
checks whether bootmem_resource has released resource structures or not. If
there is a released resource structure, get_resource() returns it. If there is
not a releaed resource structure, get_resource() returns new resource structure
allocated by kzalloc().
---
v5:
Define bootmem_resource_free as static and poiner for saving memory
Fix slab check in free_resource()
Move memset outside of spin lock in get_resource()
Please add your "Signed-off-by". Otherwise the changes look good.
Reviewed-by: Toshi Kani <toshi.kani@xxxxxx>
Thank you for your review.
I'll resend a patch with my "Signed-off-by" and your "Reviewed-by".
Thanks,
Yasuaki Ishimatsu
Thanks,
-Toshi
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