RE: [PATCH 02/10] lib: genalloc: Generic allocator improvements

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello,

On Friday, June 10, 2011 1:25 PM Alan Cox wrote:

> I am curious about one thing
> 
> Why do we need this allocator. Why not use allocate_resource and friends.
> The kernel generic resource handler already handles object alignment and
> subranges. It just seems to be a surplus allocator that could perhaps be
> mostly removed by using the kernel resource allocator we already have ?

genalloc was used mainly for historical reasons (in the earlier version we
were looking for direct replacement for first fit allocator).

I plan to replace it with lib/bitmap.c bitmap_* based allocator (similar like
it it is used by dma_declare_coherent_memory() and friends in
drivers/base/dma-coherent.c). We need something really simple for CMA area
management. 

IMHO allocate_resource and friends a bit too heavy here, but good to know 
that such allocator also exists.

Best regards
-- 
Marek Szyprowski
Samsung Poland R&D Center


--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux