Commits
Gu Zheng committed 00fefb9cf2b
aio: use iovec array rather than the single one Previously, we only offer a single iovec to handle all the read/write cases, so the PREADV/PWRITEV request always need to alloc more iovec buffer when copying user vectors. If we use a tmp iovec array rather than the single one, some small PREADV/PWRITEV workloads(vector size small than the tmp buffer) will not need to alloc more iovec buffer when copying user vectors. Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>