Messages in this thread | | | Date | Fri, 11 Apr 2003 17:03:52 -0600 | From | Andreas Dilger <> | Subject | Re: ext3 weirdness |
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On Apr 11, 2003 15:40 -0700, Andrew Morton wrote: > Andreas Dilger <adilger@clusterfs.com> wrote: > > Because you can't reallocate in-use blocks until the dirty bitmaps have > > been committed to disk in a transaction. > > Also, in 2.5 pdflush will take a ref on the inode while writing it out. So > an unlink while pdflush is writing back the inode's pages will be magically > instantaneous, and pdflush actually does the truncate.
It should be possible to have pdflush check for i_nlink == 0 and i_count == 1 periodically, indicating it is the only one that has a reference and then immediately iput the node (truncating the pages instead of writing them out).
Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://www-mddsp.enel.ucalgary.ca/People/adilger/
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