Re: [RFC PATCH 11/10] pipe: Add fsync() support [ver #2]

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On Thu, Oct 24, 2019 at 12:57 PM David Howells <dhowells@xxxxxxxxxx> wrote:
>
> pipe: Add fsync() support
>
> The keyrings testsuite needs the ability to wait for all the outstanding
> notifications in the queue to have been processed so that it can then go
> through them to find out whether the notifications it expected have been
> emitted.

Can't you just do

    ioctl(fd, FIONREAD, &count);

in a loop instead? "No paperwork. Just sprinkle some msleep() crack on
him, and let's get out of here"

               Linus



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