On Tue, Sep 8, 2020 at 2:17 AM Sean Anderson <sean...@gmail.com> wrote: > > Without these fences, it is perfectly valid for an out-of-order core to > re-order memory accesses to outside of the available_harts_lock critical > section.
The commit message should be reworded, because current codes do nothing wrong as "fence" instruction is used. What was done in this patch is using .aq / .rl to replace "fence". > > Signed-off-by: Sean Anderson <sean...@gmail.com> > --- > > arch/riscv/cpu/start.S | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > Regards, Bin
