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    SubjectRe: [PATCH 06/12] writeback: separate the flushing state/task from the bdi
    On Mon 25-05-09 09:34:41, Jens Axboe wrote:
    > Add a struct bdi_writeback for tracking and handling dirty IO. This
    > is in preparation for adding > 1 flusher task per bdi.
    >
    > Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
    ...
    > static int bdi_start_fn(void *ptr)
    > {
    > - struct backing_dev_info *bdi = ptr;
    > + struct bdi_writeback *wb = ptr;
    > + struct backing_dev_info *bdi = wb->bdi;
    > struct task_struct *tsk = current;
    > -
    > - /*
    > - * Add us to the active bdi_list
    > - */
    > - mutex_lock(&bdi_lock);
    > - list_add(&bdi->bdi_list, &bdi_list);
    > - mutex_unlock(&bdi_lock);
    I'm probably missing something but I cannot find where the bdi is added
    to the bdi_list after this patch...

    Honza
    --
    Jan Kara <jack@suse.cz>
    SUSE Labs, CR


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