Re: [PATCH] statx: reject unknown flags when using NULL path

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On Fri, Mar 10, 2017 at 10:58:23PM -0800, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@xxxxxxxxxx>
> 
> The statx() system call currently accepts unknown flags when called with
> a NULL path to operate on a file descriptor.  Left unchanged, this could
> make it hard to introduce new query flags in the future, since
> applications may not be able to tell whether a given flag is supported.
> 
> Fix this by failing the system call with EINVAL if any flags other than
> KSTAT_QUERY_FLAGS are specified in combination with a NULL path.
> 

Does anyone have comments on this patch?

I really think we need to get this in before v4.11 is released, since it deals
with the API.

- Eric
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