Re: [PATCH 0/7] ide: locking improvements

From: Jens Axboe
Date: Thu Oct 09 2008 - 02:52:27 EST


On Wed, Oct 08 2008, Bartlomiej Zolnierkiewicz wrote:
>
> Locking improvements in preparation for replacing the global ide_lock
> spinlock by per-hwgroup spinlocks [1].
>
> [1] patch (which is partially based on 2005 patch from Scalex86) for this
> is also ready but it needs some more audit and testing
>
> diffstat:
> drivers/ide/ide-cd.c | 38 ++++++-------
> drivers/ide/ide-io.c | 129 ++++++++++++++++++++---------------------------
> drivers/ide/ide-ioctls.c | 3 -
> drivers/ide/ide-lib.c | 7 --
> drivers/ide/ide-proc.c | 25 +--------
> drivers/ide/ide.c | 7 --
> 6 files changed, 80 insertions(+), 129 deletions(-)

Sorry, but I just have to ask 'why'? IDE is seeing a whole lot of churn
for something that should essentially be a stable code base in
maintenance mode, and now scalability improvements?

Just doesn't make ANY sense to me, sorry. We may end up with a cleaner
code base, but likely also a buggier one. It's not like hardware
coverage testing is all that great, considering some of the ancient
stuff it supports :-)

--
Jens Axboe

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