[dm-devel] [PATCH] Fixes for clone_bio and __clone_and_map functions in dm.c
Abhishek Gupta
agupta at cs.ubc.ca
Tue Mar 21 04:34:32 UTC 2006
Hi Alasdair,
>> I found a small bug in the clone_bio() function in dm.c . The number of
bio
>> vectors in the cloned bio is incorrectly set to the index of the last
bio
>> vector in its range. I have corrected it in the attached patch.
> I don't see that yet - the code is not very transparent though.
> (Look at the places that call the function.)
I am a little confused about why is this not a problem. Isn't
clone->bi_vcnt
supposed to hold the number of bio vectors in the clone? Why does it hold
idx+bv_count instead? Please clarify.
Thanks
Abhishek
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