Re: io_pgetevents & aio fsync

From: Al Viro
Date: Thu Mar 22 2018 - 12:37:32 EST


On Thu, Mar 22, 2018 at 04:36:05PM +0000, Al Viro wrote:
> On Wed, Mar 21, 2018 at 08:32:23AM +0100, Christoph Hellwig wrote:
> > Hi all,
> >
> > this patch adds workqueue based fsync offload. Version of this
> > patch have been floating around for a couple years, but we now
> > have a user with seastar used by ScyllaDB (who sponsored this
> > work) that really wants this in addition to the aio poll support.
> > More details are in the patch itself.
> >
> > Because the iocb types have been defined sine day one (and probably
> > were supported by RHEL3) libaio already supports these calls as-is.
> >
> > This also pulls in the aio cleanups and io_pgetevents support previously
> > submitted and review as part of the aio poll series. The aio poll
> > series will be resubmitted on top of this series
>
> Everything other than 6/9 looks sane; 6/9 belongs in aio poll series
> and AFAICS its user in there is actually broken.

Gyah... 7/9, that is.