On Fri, Sep 16, 2011 at 09:35:25AM +0100, Alex Bligh wrote: > > > --On 16 September 2011 10:26:09 +0200 Wouter Verhelst <[email protected]> wrote: > > > So yesterday I implemented the fallocate(FALLOC_FL_PUNCH_HOLE) stuff for > > NBD_CMD_TRIM. It's compile-tested, but not yet functionally tested. To > > be honest, I'm not entirely sure how to test whether a file is sparse in > > a particular region; anyone? > > I think you can use debugfs's dump_extents command (from memory).
Yes, but that requires an unmounted filesystem. If I want to add this to the test suite, that's not going to work. -- The volume of a pizza of thickness a and radius z can be described by the following formula: pi zz a ------------------------------------------------------------------------------ BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA http://p.sf.net/sfu/rim-devcon-copy2 _______________________________________________ Nbd-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nbd-general
