Re: 2.6.0test9 Reiserfs boot time "buffer layer error at fs/buffer.c:431"

[Herbert Xu]

Andrew Morton <akpm@xxxxxxxx> wrote:
> 
>> (These buffers are there because reiserfs first reads that offset (in bytes)
>> with whatever current blocksize is, except they should have been invalidated of
>> course).
>> Even if invalidate_bdev() -> invalidate_inode_pages() have not cleaned
>> everything, truncate_inode_pages() should have done this.
> 
> yup.

The person who had the problem is actually using the Debian tree which
carried over a patch from 2.4 that removed the truncate_inode_pages
call in set_blocksize.  So I appologise for the noise.

However, may I ask what is preventing us from achieving the goal that
the page cache backed buffer heads can be resized without throwing away
the pages?

In particular, aside from the buffer_error() call, is there any problems
with not throwing the pages away upon a resize?

Cheers,
-- 
Debian GNU/Linux 3.0 is out! ( http://www.debian.org/ )
Email:  Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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