On Wed, 26 May 2010 10:40:52 +0900, Jiro SEKIBA wrote:
> hi
>
> At Tue, 25 May 2010 19:16:50 +0100,
> Gordan Bobic wrote:
> >
> > Hi,
> >
> > I notice that the pitch for NILFS is that it is particularly suitable
> > for flash based media. Does it have any sort of support for TRIM
> > command? If not, is there at least an equivalent of dumpfs that could be
> > used to get the list of free blocks that could be passed to hdparm to
> > issue TRIM commands to the SSD?
>
> You may want to specify discard mount option for the purpose.
> see Documentation/filesystems/nilfs2.txt
FYI, the trim support ("-o discard") was merged at linux-2.6.34.
Cheers,
Ryusuke Konishi
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