On Thu, 1 Oct 2009, Suresh Jayaraman wrote:

From: Peter Zijlstra <redacted> 

Expose the gfp to alloc_flags mapping, so we can use it in other parts
of the vm.

Signed-off-by: Peter Zijlstra <redacted>
Signed-off-by: Suresh Jayaraman <redacted>

Nack, these flags are internal to the page allocator and exporting them to 
generic VM code is unnecessary.

The only bit you actually use in your patchset is ALLOC_NO_WATERMARKS to 
determine whether a particular allocation can use memory reserves.  I'd 
suggest adding a bool function that returns whether the current context is 
given access to reserves including your new __GFP_MEMALLOC flag and 
exporting that instead.

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