[lkml]   [2009]   [Jun]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    Subjectrunning get_user_pages() from kernel thread

    ksm is running from its kernel thread context get_user_pages(), but look
    like it isnt safe to do get_user_pages() from kernel thread:
    get_user_pages may lead into do_swap_page() that may lead into calling

    Now grab_swap_token() will do:
    current_interval = global_faults - current->mm->... (here is the bug...
    (kernel thread doesnt have mm strcture)

    So the question is: is this thing is by desgin? (that kernel thread cant
    call get_user_pages???), should i use something like switch_mm()??


     \ /
      Last update: 2009-06-16 20:09    [W:0.044 / U:7.568 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site