On Wed, Mar 28, 2018 at 09:26:35AM +0200, Christoph Hellwig wrote:
> These days we don't treat sync iocbs special in the aio completion code as
> they never use it. Remove the old comment and BUG_ON given that the
> current definition of is_sync_kiocb makes it impossible to hit.
> iocb to the top of the function.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Yeah that looks fairly impossible now...
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
--D
> ---
> fs/aio.c | 9 ---------
> 1 file changed, 9 deletions(-)
>
> diff --git a/fs/aio.c b/fs/aio.c
> index 03d59593912d..f536b0f249d4 100644
> --- a/fs/aio.c
> +++ b/fs/aio.c
> @@ -1100,15 +1100,6 @@ static void aio_complete(struct kiocb *kiocb, long res, long res2)
> file_end_write(file);
> }
>
> - /*
> - * Special case handling for sync iocbs:
> - * - events go directly into the iocb for fast handling
> - * - the sync task with the iocb in its stack holds the single iocb
> - * ref, no other paths have a way to get another ref
> - * - the sync task helpfully left a reference to itself in the iocb
> - */
> - BUG_ON(is_sync_kiocb(kiocb));
> -
> if (iocb->ki_list.next) {
> unsigned long flags;
>
> --
> 2.14.2
>
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