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SubjectRe: NFS mountned directory and apache2 (2.5.47)
On Fri, Nov 15, 2002 at 09:16:16PM +0100, Trond Myklebust wrote:
> >>>>> " " == Petr Vandrovec <> writes:
> > It does not change anything on the brokeness of apache2 (or
> > maybe glibc). It must be able to revert to read/write loop if
> > sendfile fails with EINVAL. There is no guarantee that existing
> > sendfile() API means that you can use it with all filesystems.
> I disagree. Sendfile can *always* be emulated using the standard file
> 'read' method.

Linus removed that in early 2.5 because it led to kmap() deadlocks.
sendfile can fail with EINVAL and userspace must not rely on it
working on any object.

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