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Re: fsck journal replay times (was Re: Is this list active?)



Andrew Morton wrote:
> 
> > I've definitely had cases where after the mount count went over the
> > threshold, e2fsck has detected multiply claimed blocks.
> 
> Now that buffer_head has b_inode, could we not add runtime
> checks for this?
> 
> We'd need to populate b_inode for reads, but that looks to be
> OK.

Forget I said this.  It would work in 2.2, where data is hashed
into the buffercache.  But in 2.4 if a data block is shared between
two files we wouldn't detect it via a buffer cache lookup.





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