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  • Jeff Roberson's avatar
    Eliminate pageout wakeup races. Take another step towards lockless · 30fbfdda
    Jeff Roberson authored
    vmd_free_count manipulation.  Reduce the scope of the free lock by
    using a pageout lock to synchronize sleep and wakeup.  Only trigger
    the pageout daemon on transitions between states.  Drive all wakeup
    operations directly as side-effects from freeing memory rather than
    requiring an additional function call.
    Reviewed by:	markj, kib
    Tested by:	pho
    Sponsored by:	Netflix, Dell/EMC Isilon
    Differential Revision: