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    SubjectRe: [PATCH 26/30] ext4: do not send discards as barriers
    On 08/25/2010 10:02 PM, Jan Kara wrote:
    > On Wed 25-08-10 17:57:41, Tejun Heo wrote:
    >> On 08/25/2010 06:00 PM, Christoph Hellwig wrote:
    >>> On Wed, Aug 25, 2010 at 05:58:42PM +0200, Christoph Hellwig wrote:
    >>>> On Wed, Aug 25, 2010 at 05:47:43PM +0200, Tejun Heo wrote:
    >>>>> From: Christoph Hellwig <hch@infradead.org>
    >>>>>
    >>>>> ext4 already uses synchronous discards, no need to add I/O barriers.
    >>>>
    >>>> This needs the patch that Jan sent in reply to my initial version merged
    >>>> into it.
    >>>
    >>> Actually the jbd2 patch needs it merged, but the point still stands.
    >>
    >> Yeah, wasn't sure about that one. Has anyone tested it? I'll be
    >> happy to merge it but I have no idea whether it's correct or not and
    >> Jan didn't seem to have tested it so... Jan, shall I merge the patch?
    > I'm quite confident the patch is correct so you can merge it I think but
    > tomorrow I'll give it some crash testing together with the rest of your
    > patch set in KVM to be sure.

    Patch included in the series before jbd2 conversion patch.

    Thanks.

    --
    tejun


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