Re: about TRIM/DISCARD support and barriers

Theodore Tso
2008-11-24T03:06:57Z

On Sun, Nov 23, 2008 at 01:39:44PM +0000, David Woodhouse wrote:
> On Sun, 2008-11-23 at 05:35 -0700, Matthew Wilcox wrote:
> > The current VFAT filesystem implements DISCARD.
>
> As does btrfs. I think I posted ext2 patches a little while ago too? Or
> someone else did. Did they get merged?

Looks like they didn't get merged. I thought akpm was going to merge
them. Ext4 has discard support though. It doesn't port easily to
ext3 since it ext4 has a new block allocator.

- Ted