Re: [PATCH] Make GFP_DMA allocations w/o ZONE_DMA emit a warning instead of failing

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

 



On Fri, 10 Jun 2011, Russell King - ARM Linux wrote:

> > Should one submit a patch adding a warning to GFP_DMA allocations
> > w/o ZONE_DMA, or the idea of the original patch is wrong?
> 
> Linus was far from impressed by the original commit, saying:
> | Using GFP_DMA is reasonable in a driver - on platforms where that
> | matters, it should allocate from the DMA zone, on platforms where it
> | doesn't matter it should be a no-op.
> 
> So no, not even a warning.
> 

Any words of wisdom for users with CONFIG_ZONE_DMA=n that actually use 
drivers where they need GFP_DMA?  The page allocator should just silently 
return memory from anywhere?

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxxx  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>


[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]