On Wed, Mar 28, 2018 at 09:29:03AM +0200, Christoph Hellwig wrote:
> static void aio_fsync_work(struct work_struct *work)
> {
> struct fsync_iocb *req = container_of(work, struct fsync_iocb, work);
> + struct aio_kiocb *iocb = container_of(req, struct aio_kiocb, fsync);
> + struct file *file = req->file;
> int ret;
>
> ret = vfs_fsync(req->file, req->datasync);
> - fput(req->file);
> - aio_complete(container_of(req, struct aio_kiocb, fsync), ret, 0);
> + if (aio_complete(iocb, ret, 0, 0))
> + fput(file);
IDGI.
1) can aio_complete() ever return false here?
2) do we ever have aio_kiocb that would not have an associated
struct file * that needs to be dropped on successful aio_complete()? AFAICS,
rw, fsync and poll variants all have one, and I'm not sure what kind of
async IO *could* be done without an opened file.
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