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    SubjectRe: [PATCH] anobjrmap 2/6 mapping
    Hugh Dickins <> wrote:
    > It is likely that I've screwed up on the "Morton pages", those
    > ext3 journal pages locked at truncate time which then turn into
    > fish with wings: please check them out, I never manage to wrap
    > my head around them. Certainly don't want a page using private
    > for both bufferheads and swp_entry_t.

    It goes BUG in try_to_free_buffers().

    We really should fix this up for other reasons, probably by making ext3's
    per-page truncate operations wait on commit, and be more aggressive about
    pulling the page's buffers off the transaction at truncate time.

    The same thing _could_ happen with other filesystems; not too sure about

    Still. I suggest you look at freeing up page->list from anon/swapcache
    pages. It really doesn't do much.

    Meanwhile, I backed out that bit - I don't actually see where the failure is
    anyway. The page is page_mapped(), !PageAnon and ->mapping == NULL.

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      Last update: 2005-03-22 13:34    [W:0.020 / U:122.824 seconds]
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