Hi James,
On 07/13/2012 01:50 AM, James Bottomley wrote:
On Thu, 2012-07-12 at 23:35 +0800, Asias He wrote:
This is useful for people who want to use aio in kernel, e.g. vhost-blk.
Signed-off-by: Asias He <asias@xxxxxxxxxx>
---
fs/aio.c | 37 ++++++++++++++++++-------------------
include/linux/aio.h | 21 +++++++++++++++++++++
2 files changed, 39 insertions(+), 19 deletions(-)
Um, I think you don't quite understand how aio in the kernel would work;
it's not as simple as just exporting the interfaces. There's already a
(very long) patch set from oracle to do this so loop can use aio:
http://marc.info/?l=linux-fsdevel&m=133312234313122
Oh, I did not see this patch set. Thanks for pointing it out! This bit
hasn't merged, right? I'd love to use the aio_kernel_() interface if it
is merged. It will simply vhost-blk. Due to lack of better kernel aio
interface, we are currently doing io_setup, io_submit, etc. in vhost-blk
on our own.
--
Asias
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