default ext3 journal mode - time to poke at this again?
At the linux symposium this week, some of us were wondering when it would be safe to try and default ext3's default journal mode back to sanity given that all (?) distros immediately reverted the default to data writeback mode.
Failing that, can we at least clean up the config option description to properly give the normal users a non-bogus, technical description of the trade off ?
Thanks!
Ric
Jan Kara
reviewerHi,
Quoted 4 lines
At the linux symposium this week, some of us were wondering when it would be safe to try and default ext3's default journal mode back to sanity given that all (?) distros immediately reverted the default to data writeback mode.
Well, at least SUSE still uses data=ordered,barrier as a default (and
I personally think this is the right thing to do). Hmm, maybe you've meant this and just wrote it otherwise given your paragraph below ;)
Quoted 3 lines
Failing that, can we at least clean up the config option description to properly give the normal users a non-bogus, technical description of the trade off ?
Yes, I'm all for it. Will you try to write up something or should I?
Honza
Signature · 2 lines
Jan Kara <[email protected]> SuSE CR Labs
Quoted 12 lines · Jan Kara
Hi,Quoted 5 lines
At the linux symposium this week, some of us were wondering when it would be safe to try and default ext3's default journal mode back to sanity given that all (?) distros immediately reverted the default to data writeback mode.
Well, at least SUSE still uses data=ordered,barrier as a default (and
I personally think this is the right thing to do). Hmm, maybe you've meant this and just wrote it otherwise given your paragraph below ;)
Definitely what I meant to post - Fedora and RHEL both use ordered mode as a default as well. Not many fs developers are fans of data writeback mode as far as I can tell...
Quoted 9 lines
Quoted 5 lines
Failing that, can we at least clean up the config option description to properly give the normal users a non-bogus, technical description of the trade off ?
Yes, I'm all for it. Will you try to write up something or should I?
Honza
I posted something (from [email protected]) earlier today and we had a discussion about this on the ext4 call. I think that Ted will try to update the text that I proposed over the next couple of days.
I think that Chris will be reposting his data guarded mode patches soon as well, so we might be able to move forward quickly :-)
ric