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Message-ID: <AANLkTimwpoi6agwO4q8qhOcohhSnYFrKhFOCnk0BuTEC@mail.gmail.com> Date: Mon, 28 Feb 2011 22:29:56 +0800 From: Dave Young <hidave.darkstar@...il.com> To: Josef Bacik <josef@...hat.com> Cc: Theodore Tso <tytso@....edu>, linux-ext4@...r.kernel.org, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: ext2/3/4: punch support? On Mon, Feb 28, 2011 at 9:11 PM, Josef Bacik <josef@...hat.com> wrote: > On Mon, Feb 28, 2011 at 03:03:40PM +0800, Dave Young wrote: >> Hi, josef and ext guys >> >> Do you have any plan with ext4 hole punching support? And the >> fallocate for ext2/3? >> >> What's the obstacle to work on this? could someone tell the status of >> this issue? > > There is no obstacle, just nobody has bothered to do it. If you want to do it > go for it. Thanks, Yes, I want to do some kvm image space discard stuff, I use ext4 as my filesystem, but currently only xfs support something like trim/discard. I know general knowledge about ext filesystem, but nearly new to ext4 code, could you give some hint where to start? -- Thanks dave -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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