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SubjectRe: [PATCH 5/6] aio: use lazy workqueues
Date
Jens Axboe <jens.axboe@oracle.com> writes:

> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
> ---
> fs/aio.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fs/aio.c b/fs/aio.c
> index d065b2c..4103b59 100644
> --- a/fs/aio.c
> +++ b/fs/aio.c
> @@ -72,7 +72,7 @@ static int __init aio_setup(void)
> kiocb_cachep = KMEM_CACHE(kiocb, SLAB_HWCACHE_ALIGN|SLAB_PANIC);
> kioctx_cachep = KMEM_CACHE(kioctx,SLAB_HWCACHE_ALIGN|SLAB_PANIC);
>
> - aio_wq = create_workqueue("aio");
> + aio_wq = create_lazy_workqueue("aio");
>
> pr_debug("aio_setup: sizeof(struct page) = %d\n", (int)sizeof(struct page));

So far as I can tell, the aio workqueue isn't used for much these days.
We could probably get away with switching to keventd. Zach, isn't
someone working on a patch to get rid of all of the -EIOCBRETRY
infrastructure? That patch would probably make things clearer in this
area.

Cheers,
Jeff


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