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    SubjectRe: [PATCH 2/9] swap_info: change to array of pointers
    Hugh Dickins wrote:
    > The swap_info_struct is only 76 or 104 bytes, but it does seem wrong
    > to reserve an array of about 30 of them in bss, when most people will
    > want only one. Change swap_info[] to an array of pointers.
    > That does need a "type" field in the structure: pack it as a char with
    > next type and short prio (aha, char is unsigned by default on PowerPC).
    > Use the (admittedly peculiar) name "type" throughout for this index.
    > /proc/swaps does not take swap_lock: I wouldn't want it to, but do take
    > care with barriers when adding a new item to the array (never removed).
    > Signed-off-by: Hugh Dickins <>

    Acked-by: Rik van Riel <>

    All rights reversed.

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      Last update: 2009-10-15 17:07    [W:4.041 / U:0.108 seconds]
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