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Subject[PATCH] 2.4 IDE core for 2.5

I've forward ported the 2.4 IDE core (well 2.4.19-pre10-ac2 to be exact)
to 2.5.25. It consists of 7 separate patches:

Fix 2.5 IDE compilation problem with ide_fix_driveid()

Add missing 2.4 IDE adapter pci ids

Add 2.4 IDE core, modified for 2.5 changes

various bits and pieces to make 2.4 IDE core work

Split 2.4 and 2.5 IDE configuration

allow 2.4 and 2.5 ide to be built

Add 2.4 ide-scsi version (note that 2.5 with 2.4 ide calls it
ide-scsi24.o currently, I'll take patches to rectify that).

Find them all here:


So why did I do this? Well, I needed stable IDE for 2.5 testing and it
was/is clear that 2.5 just isn't quite there yet. I intend to maintain
this patch set until I deem 2.5 IDE stable enough (in code) that I'm
willing to spend time on that instead. So the life span of this patch
depends heavily on that. That said, I know of others who would like to
be able to test 2.5 and not having to worry too much about the
state-of-the-day of the IDE core. This patch set may be useful to them
as well.

Also some notes on why I _didn't_ do this. I didn't do it because I
think Martin is a jerk or because 2.5 IDE is forever doomed. I didn't do
this because Andre twisted my arm. I didn't do this because of some
hidden agenda.

That said, the patch works for me here. I've ripped out ide-tape and
ide-floppy (frankly, I don't think it's worth my time updating these),
but apart from that I think it's 2.4 feature complete. PIO multi count
breaks for multi page bio's, if you intend to use that you should change
MPAGE_BIO_MAX_SIZE as noted in fs/mpage.c. I'll fix that in the next

Jens Axboe

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