Messages in this thread |  | | | Date | Wed, 03 Jul 2002 22:44:39 -0700 | | From | Andrew Morton <> | | Subject | Re: [linux-lvm] LVM2 modifies the buffer_head struct? |
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Neil Brown wrote: > > ... > We just want ext3/jbd to make sure that it only calls bh2jh on > an unlocked buffer... is that easy?
It's feasible, but a downright pita.
> Ofcourse this ceases to be an issue in 2.5 because the filesys uses > pages or buffer_heads and the device driver uses bios.
Well, for 2.4 I'd be inclined to just add the extra field to struct buffer_head and be done with it.
Current sizeof(buffer_head) is 96 bytes, and making that 100 would be a nuisance, but its quite easy to shrink the buffer_head a bit (replace b_inode with BH_inode, say...).
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