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SubjectRe: [PATCH 1/6] nfs: "open code" the NFS direct write rescheduler
Chuck Lever <cel@netapp.com> wrote:
>
> + * Prevent I/O completion while we're still rescheduling
> + */
> + dreq->outstanding++;
> +

No locking.

> dreq->count = 0;
> + list_for_each(pos, &dreq->rewrite_list) {
> + struct nfs_write_data *data =
> + list_entry(dreq->rewrite_list.next, struct nfs_write_data, pages);
> +
> + spin_lock(&dreq->lock);
> + dreq->outstanding++;
> + spin_unlock(&dreq->lock);

Locking.

Deliberate?
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