On Tue, Jan 12, 2016 at 10:05:11AM +0800, Qu Wenruo wrote: > 'Norecovery' mount option is almost a standard for all other > filesystems, including f2fs, ext4, gfs2, nilfs2, and xfs. > And since current 'recovery' mount option for btrfs is too generic, it's > better to change btrfs 'recovery' to 'usebackuproot' and then we can > safely add 'norecovery' and 'nologreplay' mount option for btrfs. > > The patch itself is not huge and already tested by others since v2. > Only mount option name is changing during all these version changes. So we have some kind of consensus about the options, but I think you need to split the patches further. * the new option 'nologreplay' * keep 'usebackuproot' as a new alias for 'recovery' (with the deprecation warning) * new 'norecovery' that switches on 'nologreplay' and 'nousebackuproot' (ie. the desired "no writes") There is a case in remount, when we start with 'ro,nologreplay' then remount with just 'ro', the log should be replayed. The other combinations should be easy. I haven't looked at the patch if it's implemented that way though. -- 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
