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    Subject[PATCH 10/11] vfs: Export wakeup_pdflush
    When we are running out of free space on a filesystem, we want to flush dirty
    pages in the filesystem so that blocks reserved via delayed allocation get
    written and unnecessary block reservation is released. Export wakeup_pdflush()
    so that filesystem can start such writeback.

    Signed-off-by: Jan Kara <>
    mm/page-writeback.c | 1 +
    1 files changed, 1 insertions(+), 0 deletions(-)

    diff --git a/mm/page-writeback.c b/mm/page-writeback.c
    index bb553c3..43af1cf 100644
    --- a/mm/page-writeback.c
    +++ b/mm/page-writeback.c
    @@ -730,6 +730,7 @@ int wakeup_pdflush(long nr_pages)
    return pdflush_operation(background_writeout, nr_pages);

    static void wb_timer_fn(unsigned long unused);
    static void laptop_timer_fn(unsigned long unused);

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      Last update: 2009-05-27 15:07    [W:0.021 / U:9.604 seconds]
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