On Wed, Dec 02, 2015 at 03:56:27PM -0500, ira.weiny@xxxxxxxxx wrote:
> - for (i = tx->idx; i >= 0; i--) {
> - if (tx->iovecs[i].flags & TXREQ_FLAGS_IOVEC_LAST_PKT)
> - unpin_vector_pages(tx->iovecs[i].vec);
> + /*
> + * If we have any io vectors associated with this txreq,
> + * check whether they need to be 'freed'. We can't free them
> + * here because the unpin function needs to be able to sleep.
> + */
> + i = tx->idx;
> + while (i)
> + if (tx->iovecs[i--].flags & TXREQ_FLAGS_IOVEC_LAST_PKT) {
> + defer = true;
> + break;
> }
In the original code, we checked tx->iovecs[0].flags but now we skip
that one. Going back to the original for loop is probably the right way
to fix this.
regards,
dan carpenter
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