Re: [f2fs-dev] [PATCH v2] f2fs: another way to set large folio by remembering inode number

[Christoph Hellwig]

On Tue, May 26, 2026 at 08:21:43PM -0500, Theodore Tso wrote:
> The bottom line is if it's right after device boot, there are simple
> techniques that don't require hacking up the f2fs.  But in the
> demand-loaded case, calling compact_memory() is the last thing you'll
> want to do.  You're better either asking the mm to allocate the 4k
> pages, or do whatever compaction it can do to just free up 2GB worth
> of folios.  (Calling compact_memory() is overkill, and only makes
> sense in the context of benchmark / proof of concept demo.)

Or have a lot of clean pagecache using higher order folios that can
you can instantly reclaim?