Thread (3 messages) 3 messages, 2 authors, 2009-10-02

Re: [PATCH 03/31] mm: expose gfp_to_alloc_flags()

From: Suresh Jayaraman <hidden>
Date: 2009-10-02 08:09:56
Also in: linux-mm, lkml

David Rientjes wrote:
On Thu, 1 Oct 2009, Suresh Jayaraman wrote:
quoted
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.
Yes, you're right.
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.
Makes sense and Neil already posted a patch citing the suggested
changes, will incorporate the change.

Thanks,

-- 
Suresh Jayaraman

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