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fuse: return -EIOCBQUEUED from fuse_direct_IO() for all async requests
If request submission fails for an async request (i.e., get_user_pages() returns -ERESTARTSYS), we currently skip the -EIOCBQUEUED return and drop into wait_for_sync_kiocb() forever. Avoid this by always returning -EIOCBQUEUED for async requests. If an error occurs, the error is passed into fuse_aio_complete(), returned via aio_complete() and thus propagated to userspace via io_getevents(). Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Maxim Patlasov <MPatlasov@parallels.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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@ -2432,7 +2432,7 @@ fuse_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
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fuse_aio_complete(io, ret < 0 ? ret : 0, -1);
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/* we have a non-extending, async request, so return */
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if (ret > 0 && !is_sync_kiocb(iocb))
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if (!is_sync_kiocb(iocb))
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return -EIOCBQUEUED;
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ret = wait_on_sync_kiocb(iocb);
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