Re: [PATCH 03/33] gadget: remove only user of aio retry

[Jeff Moyer]

Kent Overstreet <koverstreet@xxxxxxxxxx> writes:

> From: Zach Brown <zab@xxxxxxxxxx>
>
> This removes the only in-tree user of aio retry.  This will let us remove
> the retry code from the aio core.
>
> Removing retry is relatively easy as the USB gadget wasn't using it to
> retry IOs at all.  It always fully submitted the IO in the context of the
> initial io_submit() call.  It only used the AIO retry facility to get the
> submitter's mm context for copying the result of a read back to user
> space.  This is easy to implement with use_mm() and a work struct, much
> like kvm does with async_pf_execute() for get_user_pages().
>
> Signed-off-by: Zach Brown <zab@xxxxxxxxxx>
> Signed-off-by: Kent Overstreet <koverstreet@xxxxxxxxxx>
> Cc: Felipe Balbi <balbi@xxxxxx>
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Cc: Mark Fasheh <mfasheh@xxxxxxxx>
> Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
> Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
> Cc: Jens Axboe <axboe@xxxxxxxxx>
> Cc: Asai Thambi S P <asamymuthupa@xxxxxxxxxx>
> Cc: Selvan Mani <smani@xxxxxxxxxx>
> Cc: Sam Bradshaw <sbradshaw@xxxxxxxxxx>
> Cc: Jeff Moyer <jmoyer@xxxxxxxxxx>
> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
> Cc: Benjamin LaHaise <bcrl@xxxxxxxxx>
> Cc: Theodore Ts'o <tytso@xxxxxxx>
> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>

Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
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