On Jul 27 2023, David Laight wrote:
From: Aleksa Sarai
Sent: 25 July 2023 17:36
...
We almost certainly want to support AT_EMPTY_PATH at the same time.
Otherwise userspace will still need to go through /proc when trying to
chmod a file handle they have.
That can't be allowed.
IIUC, fchmodat2(fd, "", m, AT_EMPTY_PATH) is equivalent to fchmod(fd,
m). With that, new architectures only need to implement the fchmodat2
syscall to cover all chmod variants.
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