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Re: [PATCHv8 00/12] Contiguous Memory Allocator

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From: Russell King - ARM Linux
Subject: Re: [PATCHv8 00/12] Contiguous Memory Allocator
Date: Thursday, December 23, 2010 - 3:06 am

On Thu, Dec 23, 2010 at 06:30:57PM +0900, Kyungmin Park wrote:

Has anyone addressed my issue with it that this is wide-open for
abuse by allocating large chunks of memory, and then remapping
them in some way with different attributes, thereby violating the
ARM architecture specification?

In other words, do we _actually_ have a use for this which doesn't
involve doing something like allocating 32MB of memory from it,
remapping it so that it's DMA coherent, and then performing DMA
on the resulting buffer?
--
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Messages in current thread:
[PATCHv8 00/12] Contiguous Memory Allocator, Michal Nazarewicz, (Wed Dec 15, 1:34 pm)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Kyungmin Park, (Thu Dec 23, 2:30 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Russell King - ARM Linux, (Thu Dec 23, 3:06 am)
RE: [PATCHv8 00/12] Contiguous Memory Allocator, Marek Szyprowski, (Thu Dec 23, 3:58 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Russell King - ARM Linux, (Thu Dec 23, 5:19 am)
RE: [PATCHv8 00/12] Contiguous Memory Allocator, Marek Szyprowski, (Thu Dec 23, 6:09 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Tomasz Fujak, (Thu Dec 23, 6:35 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Michal Nazarewicz, (Thu Dec 23, 6:41 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Russell King - ARM Linux, (Thu Dec 23, 6:44 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Russell King - ARM Linux, (Thu Dec 23, 6:48 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Russell King - ARM Linux, (Thu Dec 23, 6:51 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Tomasz Fujak, (Thu Dec 23, 7:04 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Tomasz Fujak, (Thu Dec 23, 7:08 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Russell King - ARM Linux, (Thu Dec 23, 7:16 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Russell King - ARM Linux, (Thu Dec 23, 7:20 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Felipe Contreras, (Thu Dec 23, 7:42 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Michal Nazarewicz, (Thu Dec 23, 8:02 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Tomasz Fujak, (Thu Dec 23, 8:35 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, David Brown, (Thu Dec 23, 11:04 am)
RE: [PATCHv8 00/12] Contiguous Memory Allocator, Johan MOSSBERG, (Tue Jan 4, 9:23 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Michał Nazarewicz, (Tue Jan 4, 9:59 am)
Re: [PATCHv8 00/12] Contiguous Memory Allocator, Russell King - ARM Linux, (Tue Jan 4, 10:19 am)
RE: [PATCHv8 00/12] Contiguous Memory Allocator, Santosh Shilimkar, (Tue Jan 4, 10:31 am)