On Thu, Jan 22, 2026 at 01:49:58PM -0800, Darrick J. Wong wrote:
> Well this is no longer a weird ext4ism, since f2fs also needs this,
> right?  Maybe this comment should read:

f2fs doesn't use buffer heads.  So this is just because ext4 only
implements the easy parts of ->read_folio and ->readahead itself and
falls back onto the generic code for the rest, which then had to be
grow hacky ext4-specific bits like this for it :(



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