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    SubjectRe: [patch 1/4] Configure out AIO support
    On Fri, Aug 01, 2008 at 12:42:22AM +0200, Bernhard Fischer wrote:
    > On Thu, Jul 31, 2008 at 01:12:19PM +0300, Adrian Bunk wrote:
    > >On Thu, Jul 31, 2008 at 12:09:29PM +0200, Bernhard Fischer wrote:
    > >> On Thu, Jul 31, 2008 at 11:27:04AM +0200, Thomas Petazzoni wrote:
    > >> >This patchs adds the CONFIG_AIO option which allows to remove support
    > >> >for asynchronous I/O operations, that are not necessarly used by
    > >> >applications, particularly on embedded devices. As this is a
    > >> >size-reduction option, it depends on CONFIG_EMBEDDED. It allows to
    > >> >save ~7 kilobytes of kernel code/data:
    > >>
    > >> Shouldn't this also make sure not to install aio_abi.h or at least an
    > >> empty aio_abi.h?
    > >
    > >The userspace headers are independent of any kernel configuration
    > >(except for the architecture).
    >
    > I beg to disagree:
    > internals as exposed by e.g. aio_abi.h are impl dependent. Noone except
    > the impl and it's users are interrested in it.
    >...

    That's utter bullshit.

    The contents of aio_abi.h is a kernel<->userspace ABI that mustn't ever
    change. [1]

    cu
    Adrian

    [1] there are some exceptions like adding stuff (but not in existing
    structs), but basically the contents of aio_abi.h is cast in stone

    --

    "Is there not promise of rain?" Ling Tan asked suddenly out
    of the darkness. There had been need of rain for many days.
    "Only a promise," Lao Er said.
    Pearl S. Buck - Dragon Seed



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