Re: [f2fs-dev] [PATCH] generic/064: allow 50 extents on F2FS after fcollapse

Christoph Hellwig <[email protected]> Wed, 22 Jul 2026 01:59:41 -0700

Newsgroups	org.kernel.vger.fstests,net.sourceforge.lists.linux-f2fs-devel
Message-ID	<[email protected]>

On Wed, Jul 22, 2026 at 09:12:48AM +0800, Chao Yu wrote:
> Hi Christoph,
> 
> On 7/20/26 16:04, Christoph Hellwig wrote:
> > So looking at this explanation and the code, f2fs does not actually
> > support COLLAPSE_RANGE at all, but emulates by doing a full data
> 
> For non-checkpoint data, we can just update metadata w/o any data copying
> to support COLLAPSE_RANGE.

Can you clarify what "non-checkpoint data" data means?  Older data?