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    SubjectRe: 2.2.6_andrea4.bz2
    On Tue, 27 Apr 1999, Andrea Arcangeli wrote:

    >I am releasing now a new patch. It will have the fixes for the bug
    >triggered in 2.2.6_andrea3 and will have the fixes for the
    >performances-bugs I found previously in 2.2.6_andrea2. It will return to

    I just have a patch against 2.2.6_andrea4.bz2.

    Index: mm/filemap.c
    ===================================================================
    RCS file: /var/cvs/linux/mm/filemap.c,v
    retrieving revision 1.1.2.57
    diff -u -r1.1.2.57 filemap.c
    --- linux/mm/filemap.c 1999/04/27 18:52:52 1.1.2.57
    +++ linux/mm/filemap.c 1999/04/28 12:53:01
    @@ -172,7 +172,7 @@
    LIST_HEAD(old);
    LIST_HEAD(young);

    - while (count-- > 0 && (tmp = lru_head[i]->prev) != lru_head[i])
    + while (count > 0 && (tmp = lru_head[i]->prev) != lru_head[i])
    {
    struct page * page = list_entry(tmp, struct page, lru);

    @@ -183,6 +183,7 @@
    list_add(tmp, &young);
    continue;
    }
    + count--;

    if ((gfp_mask & __GFP_DMA) && !PageDMA(page))
    {

    It's not really a bugfix but I think it's better. The only meaning of the
    the referenced bit now has to be to reorder the lru list, not at all to
    drive swapout or not. I did such change because it looked better in low
    memory to swapout more, but it was not the right thing to do.

    If somebody will try out 2.2.6_andrea4.bz2 with and then w/o the patch
    above let me know (let me know the details of your memory too ;).

    Thanks.

    Andrea Arcangeli


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