Re: [patch] xip sendfile removal

[Jens Axboe]

On Thu, Jun 14 2007, Carsten Otte wrote:
> This patch removes xip_file_sendfile, the sendfile implementation for
> xip without replacement. Those customers that use xip on s390 are not
> using sendfile() as far as we know, and so far s390 is the only platform
> this could potentially be used on so far.
> Having sendfile is not a popular feature for execute in place file
> systems, however we have a working implementation of splice_read() based
> on fs/splice.c if anyone asks for it.
> At this point in time, it does not seem preferable to merge
> splice_read() for xip because it causes extra maintenence effort due to
> code duplication and it requires struct page behind the xip memory
> segment. We'd like to get rid of that in favor of supporting flash based
> embedded platforms (Monta Vista work) soon.

Thanks Carsten, as discussed in private I will fold this in with the
splice series that removes sendfile. I'll post the splice ext2 xip patch
here for reference, so that it'll at least always be in the archives :-)