Re: [BUG] 2.6.29-rc6-2450cf in scsi_lib.c (was: Large amount of scsi-sgpool)objects

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* Jens Axboe <jens.axboe@xxxxxxxxxx> wrote:

> On Thu, Mar 05 2009, Ingo Molnar wrote:
> > 
> > * Jens Axboe <jens.axboe@xxxxxxxxxx> wrote:
> > 
> > > > > Totally untested, comments welcome...
> > > > 
> > > > Yeah, I think that updating bi_seg_front_size and 
> > > > bi_seg_back_size at one place, __blk_recalc_rq_segments, is 
> > > > better. I thought about the same way. But we are already in 
> > > > -rc7 and this must go into mainline now. So I chose a 
> > > > less-intrusive way (similar to what we have done in the 
> > > > past).
> > > > 
> > > > As you know, the merging code is really complicated and we 
> > > > could overlook stuff easily. ;) It might be better to 
> > > > simplify the merging code a bit.
> > > 
> > > If someone (Ingo?) is willing to test the last variant, I'd 
> > > much rather add that. It does simplify it (imho), and it kills 
> > > 23 lines while only adding 9. But a quick response would be 
> > > nice, then I can ask Linus to pull it later today.
> > 
> > sure, can give it a whirl.
> > 
> > Note that your patch in this thread does no apply cleanly. Could 
> > you please send a pull request of your latest fixes that i could 
> > pull into tip:out-of-tree for testing purposes?
> 
> Hmm that's odd, I have no changes in blk-merge.c in my tree 
> against Linus'. But you can pull:
> 
>   git://git.kernel.dk/linux-2.6-block.git for-linus
> 
> Jens Axboe (2):
>       cciss: remove 30 second initial timeout on controller reset
>       block: fix missing bio back/front segment size setting in blk_recount_segments()
> 
> Kris Shannon (1):
>       Fix kernel NULL pointer dereference in xen-blkfront
> 
> Roel Kluin (1):
>       loop: don't increment p->offset with (size_t) -EINVAL
> 
>  block/blk-merge.c            |   25 +++++++++----------------
>  drivers/block/cciss.c        |    8 +++-----
>  drivers/block/loop.c         |    3 +--
>  drivers/block/xen-blkfront.c |    2 ++
>  4 files changed, 15 insertions(+), 23 deletions(-)

It pulled without conflicts so we are good. Started testing it. 
Once Thomas is around i suspect he'll be able to test it too 
with his reproducer.

	Ingo
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