Re: [PATCH] mm: replace FAULT_FLAG_SIZE with parameter to huge_fault

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On Fri 03-02-17 14:31:22, Dave Jiang wrote:
> Since the introduction of FAULT_FLAG_SIZE to the vm_fault flag, it has
> been somewhat painful with getting the flags set and removed at the
> correct locations. More than one kernel oops was introduced due to
> difficulties of getting the placement correctly. Removing the flag
> values and introducing an input parameter to huge_fault that indicates
> the size of the page entry. This makes the code easier to trace and
> should avoid the issues we see with the fault flags where removal of the
> flag was necessary in the fallback paths.
> 
> Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>

Yeah, the code looks less error-prone this way. I like it. You can add:

Reviewed-by: Jan Kara <jack@xxxxxxx>


								Honza
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR

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