Re: [PATCH] fcntl: Add 32bit filesystem mode

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On Mon, 20 Apr 2020 at 16:24, Eric Blake <eblake@xxxxxxxxxx> wrote:
> It will be interesting to find how much code (wrongly) assumes it can
> use a blind assignment of fcntl(fd, F_SETFD, 1) and thereby accidentally
> wipes out other existing flags, when it should have instead been doing a
> read-modify-write to protect flags other than FD_CLOEXEC.

For instance, a quick grep shows 4 instances of this in QEMU :-)

thanks
-- PMM



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