Messages in this thread | | | From | Hsin-Yi Wang <> | Date | Mon, 16 May 2022 18:47:02 +0800 | Subject | Re: [PATCH 0/3] Implement readahead for squashfs |
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On Mon, May 16, 2022 at 6:42 PM Hsin-Yi Wang <hsinyi@chromium.org> wrote: > > Commit c1f6925e1091("mm: put readahead pages in cache earlier") requires > fs to implement readahead callback. Otherwise there will be a > performance regression. > > Commit 9eec1d897139("squashfs: provide backing_dev_info in order to > disable read-ahead") mitigates the performance drop issue for squashfs > by closing readahead for it. > > This series implements readahead callback for squashfs. The previous > discussion are in [1] and [2]. > > [1] https://lore.kernel.org/all/CAJMQK-g9G6KQmH-V=BRGX0swZji9Wxe_2c7ht-MMAapdFy2pXw@mail.gmail.com/T/ > [2] https://lore.kernel.org/linux-mm/Yn5Yij9pRPCzDozt@casper.infradead.org/t/#m4af4473b94f98a4996cb11756b633a07e5e059d1 > > Hsin-Yi Wang (3): > Revert "squashfs: Convert squashfs to read_folio" > Revert "squashfs: provide backing_dev_info in order to disable > read-ahead" > squashfs: implement readahead > > fs/squashfs/file.c | 82 +++++++++++++++++++++++++++++++++++++++++-- > fs/squashfs/super.c | 33 ----------------- > fs/squashfs/symlink.c | 5 ++- > 3 files changed, 81 insertions(+), 39 deletions(-) > > -- > 2.36.0.550.gb090851708-goog >
hi, please ignore this for now. I'll resend a correct cover letter.
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