• Joe Thornber's avatar
    [PATCH] dm: new suspend/resume target methods · 1d914277
    Joe Thornber authored
    Some targets may perform io of their own volition, eg. a mirror
    performing recovery, a cache target pulling in different chunks.  We
    cannot let them perform this io while the device is suspended.  This
    patch adds 2 new methods to the target type, which instruct the target
    to suspend/resume itself.  All targets start in the suspended state,
    so should expect an initial resume call.  Simple targets do not need
    to implement these functions.
    1d914277
dm.c 16.6 KB