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From:   Florian Weimer <fw@deneb.enyo.de>
To:     Andreas Dilger <adilger@dilger.ca>
Cc:     Miklos Szeredi <miklos@szeredi.hu>,
        Michael Kerrisk <mtk.manpages@gmail.com>,
        David Howells <dhowells@redhat.com>,
        Linux FS-devel Mailing List <linux-fsdevel@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux API <linux-api@vger.kernel.org>
Subject: Re: statx(2) API and documentation
References: <CAJfpegsxFUGeczcC-pzK0WWROjv48_PvXtNun-f5QJMoUDn1Dw@mail.gmail.com>
        <006890C4-64D4-4DE2-A1F0-335FFFD585BB@dilger.ca>
        <CAJfpeguvJZbP83mSULc74Yhpp_CPMBW1XvcgbvCbLnF7QCncUA@mail.gmail.com>
        <E9903911-9289-4038-9835-9353762A3BAF@dilger.ca>
Date:   Thu, 18 Oct 2018 00:22:08 +0200
In-Reply-To: <E9903911-9289-4038-9835-9353762A3BAF@dilger.ca> (Andreas
        Dilger's message of "Wed, 17 Oct 2018 14:22:57 -0600")
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* Andreas Dilger:

>> So what's the point exactly?
>
> Ah, I see your point...  STATX_ALL seems to be mostly useful for the kernel
> to mask off flags that it doesn't currently understand.  It doesn't make
> much sense for applications to specify STATX_ALL, since they don't have any
> way to know what each flag means unless they are hard-coded to check each of
> the STATX_* flags individually.  They should build up a mask of STATX_* flags
> based on what they care about (e.g. "find" should only request attributes
> based on the command-line options given).

Could you remove it from the UAPI header?  I didn't want to put it
into the glibc header, but was overruled.