Richard Henderson <[email protected]> writes:
> For user-only, the probe for page writability may race with another > thread's mprotect. Take the mmap_lock around the operation. This > is still faster than the start/end_exclusive fallback. Did we have a bug report or replication for this? > > Remove the write probe in load_atomic8_or_exit. There we don't have > the same machinery for testing the existance of an 8-byte cmpxchg. > > Signed-off-by: Richard Henderson <[email protected]> Otherwise makes sense to me: Reviewed-by: Alex Bennée <[email protected]> -- Alex Bennée Virtualisation Tech Lead @ Linaro
