On Fri, Apr 14, 2017 at 08:35:54AM +0800, Qu Wenruo wrote: > Unlike mirror based profiles, RAID5/6 recovery needs to read out the > whole full stripe. > > And if we don't do proper protect, it can easily cause race condition. > > Introduce 2 new functions: lock_full_stripe() and unlock_full_stripe() > for RAID5/6. > Which stores a rb_tree of mutex for full stripes, so scrub callers can > use them to lock a full stripe to avoid race. > > Signed-off-by: Qu Wenruo <quwenruo@xxxxxxxxxxxxxx> > Reviewed-by: Liu Bo <bo.li.liu@xxxxxxxxxx> Reviewed-by: David Sterba <dsterba@xxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
