Re: [f2fs-dev] [PATCH v3 03/17] f2fs: support regular file buffered writes on large folios

[Nanzhe Zhao]

Thanks for pointing out!

I choosed the design to let prepare_large_folio_write_begin() and
prepare_large_folio_atomic_write_begin() complete the read IO internally
to keep the code easy to implement, so I have to call them after the
f2fs_folio_wait_writeback() in f2fs_write_begin().

I'm going to add the writeback wait after re-locking the folio in
f2fs_folio_may_unlock_balance_fs().  For order-0, one more f2fs_folio_wait_writeback
probably doesn't matter much, right?

Thanks,
Nanzhe