On Tue, Jun 29, 2021 at 10:28 PM Eric W. Biederman
[off-list ref] wrote:

The bdflush system call has been deprecated for a very long time.
Recently Michael Schmitz tested[1] and found that the last known
caller of of the bdflush system call is unaffected by it's removal.

Since the code is not needed delete it.

[1] https://lkml.kernel.org/r/36123b5d-daa0-6c2b-f2d4-a942f069fd54@gmail.com
Signed-off-by: "Eric W. Biederman" <redacted>
---

I think we have consensus that bdflush can be removed. Can folks please
verify I have removed it correctly?

Reviewed-by: Arnd Bergmann <arnd@arndb.de>

We are traditionally somewhat inconsistent about whether to leave the
__NR_bdflush macro present in asm/unistd.h or to remove it when the
syscall is gone. Leaving it in place as you do is probably better here.

        Arnd