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    Subject[PATCH 3/8] writeback: use WRITE_BG for kupdate and background writeback
    Date
    If we're doing background type writes, then use the appropriate
    write command for that.

    Signed-off-by: Jens Axboe <axboe@fb.com>
    ---
    include/linux/writeback.h | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/include/linux/writeback.h b/include/linux/writeback.h
    index 608afd39b1c2..e53abf2bf2d8 100644
    --- a/include/linux/writeback.h
    +++ b/include/linux/writeback.h
    @@ -104,6 +104,8 @@ static inline int wbc_to_write_flags(struct writeback_control *wbc)
    {
    if (wbc->sync_mode == WB_SYNC_ALL)
    return WRITE_SYNC;
    + else if (wbc->for_kupdate || wbc->for_background)
    + return WRITE_BG;

    return 0;
    }
    --
    2.7.4
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