On Sat, Oct 14, 2017 at 09:05:17AM +0300, Amir Goldstein wrote: [..] > > When I read memory-barrier.txt, it seems to suggest that RELEASE can let > > instructions outside critical region sneak into critical region. If that's > > the case, actually clearing of metaflag can happen before xattr actually > > got removed. Though I can't think what will go wrong in that case. > > clear_bit takes a spinlock so I *think* clearing of flag cannot sneak > before removing xattr. Which spinlock does clear_bit take? Are you referring to ovl_inode->lock mutex? Vivek -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
