linux-kernel - Re: [PATCH 07/13] aio: enabled thread based async fsync

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Message-ID: <20160122154108.GG4961@awork2.anarazel.de>
Date:	Fri, 22 Jan 2016 16:41:08 +0100
From:	Andres Freund <andres@...razel.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Benjamin LaHaise <bcrl@...ck.org>,
	Dave Chinner <david@...morbit.com>, linux-aio@...ck.org,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux API <linux-api@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 07/13] aio: enabled thread based async fsync

On 2016-01-19 19:59:35 -0800, Linus Torvalds wrote:
> Are there other users outside of Solace? It would be good to get comments..

PostgreSQL is a potential user of async fdatasync, fsync,
sync_file_range and potentially readahead, write, read. First tests with
Dave's async fsync/fsync_range are positive, so are the results with a
self-hacked async sync_file_range (although I'm kinda thinking that it
shouldn't really require to be used asynchronously).

I rather doubt openat, unlink et al are going to be interesting for
*us*, the requires structural changes would be too bit. But obviously
that doesn't mean anything for others.

Andres