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    Subject[PATCH 15/23] Hibernation: Use block extents for reading image
    Date
    Switch from using swap map pages to using block extents for
    knowing where the next page needs to be read from.

    Signed-off-by: Nigel Cunningham <nigel@tuxonice.net>
    ---
    kernel/power/block_io.c | 4 ++--
    1 files changed, 2 insertions(+), 2 deletions(-)
    diff --git a/kernel/power/block_io.c b/kernel/power/block_io.c
    index 89601d3..f2bc044 100644
    --- a/kernel/power/block_io.c
    +++ b/kernel/power/block_io.c
    @@ -332,7 +332,7 @@ int swap_read_page(void *buf, int sync)

    if (!handle.cur)
    return -EINVAL;
    - offset = handle.cur->entries[handle.k];
    + offset = hib_extent_next(&sector_extents);
    if (!offset)
    return -EFAULT;
    error = hib_bio_read_page(offset, buf, sync);
    @@ -341,7 +341,7 @@ int swap_read_page(void *buf, int sync)
    if (++handle.k >= MAP_PAGE_ENTRIES) {
    error = hib_wait_on_bio_chain();
    handle.k = 0;
    - offset = handle.cur->next_swap;
    + offset = hib_extent_next(&sector_extents);
    if (!offset)
    release_swap_reader();
    else if (!error)
    --
    1.7.0.4


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