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    SubjectRe: [PATCH 0/11] Per-bdi writeback flusher threads v9
    On Wed, Jun 03 2009, Artem Bityutskiy wrote:
    > Jens Axboe wrote:
    >>> Just to make sure I understood you correctly. I assume my original
    >>> patch is fine (because there is bdi_destroy()) and merge it to
    >>> ubifs tree.
    >> It needs to be:
    >> err = bdi_register(&c->bdi, NULL, "ubifs");
    >> if (err)
    >> goto out_bdi;
    >> so you hit the bdi_destroy() for that failure, not goto out_close;
    >> Otherwise it was fine.
    > Ah, I see. Rather non-typical convention though. I expected
    > bdi_register() to clean-up stuff in case of failure. Isn't
    > it a better interface?

    You already did a bdi_init() at that point. bdi_destroy() must be used
    to clean up after both bdi_init() and/or bdi_register().

    Jens Axboe

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