Re: [BUG] + possible [PATCH]. blkdev_issue_flush is a NOOP for request based drivers

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--On 26 May 2011 14:53:47 +0200 Tejun Heo <tj@xxxxxxxxxx> wrote:

This should not exclude request based drivers from
getting any flushes. Instead therefore check for EITHER
make_request_function OR request_function and queue flags. The check for
queue flags may be unnecessary as the block layer may simply not send the
flush on.

Have you tested the code actually works as you expect it to?  Before
and after?

Nope - I meant to indicate that. It doesn't break things, but it didn't
get me where I wanted to, but I had put that down to something missing
elsewhere. It may well be unnecessary (as you suggest) in which case
my debugging has taken a wrong turn, and apologies for wasting your time.

--
Alex Bligh
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