[PATCH] mm: Replace all open encodings for NUMA_NO_NODE

[David Hildenbrand]

On 23.11.18 10:54, Anshuman Khandual wrote:
> At present there are multiple places where invalid node number is encoded
> as -1. Even though implicitly understood it is always better to have macros
> in there. Replace these open encodings for an invalid node number with the
> global macro NUMA_NO_NODE. This helps remove NUMA related assumptions like
> 'invalid node' from various places redirecting them to a common definition.
> 
> Signed-off-by: Anshuman Khandual <anshuman.khandual at arm.com>
> ---
> 
> Changes in V1:
> 
> - Dropped OCFS2 changes per Joseph
> - Dropped media/video drivers changes per Hans
> 
> RFC - https://patchwork.kernel.org/patch/10678035/
> 
> Build tested this with multiple cross compiler options like alpha, sparc,
> arm64, x86, powerpc, powerpc64le etc with their default config which might
> not have compiled tested all driver related changes. I will appreciate
> folks giving this a test in their respective build environment.
> 
> All these places for replacement were found by running the following grep
> patterns on the entire kernel code. Please let me know if this might have
> missed some instances. This might also have replaced some false positives.
> I will appreciate suggestions, inputs and review.
> 
> 1. git grep "nid == -1"
> 2. git grep "node == -1"
> 3. git grep "nid = -1"
> 4. git grep "node = -1"

Hopefully you found most users :)

Did you check if some are encoded into function calls? f(-1, ...)

Reviewed-by: David Hildenbrand <david at redhat.com>


-- 

Thanks,

David / dhildenb