On Tue, 29 Oct 2002, Badari Pulavarty wrote:
> Inorder to support AIO for raw/O_DIRECT, I need to add "struct kiocb *"
> to generic_file_direct_IO() and all direct_IO() ops.
>
> generic_file_direct_IO(int rw, struct file *file, const struct iovec *iov,
> loff_t offset, unsigned long nr_segs)
>
> Instead of adding a new argument, I propose replace
>
> "struct file *file" argument with "struct kiocb *iocb"
>
> One can get "filp" from iocb->ki_filp.
>
> Any objections ?
here's a naive objection. is there any preallocated data structure
associated with a kiocb other than the struct itself? if there is, that
will have some scalability impact for applications like Oracle that like
to create a very large database by opening thousands of files.
- Chuck Lever
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