Re: Status of free-space-tree feature

2016-09-22 Thread ojab
On 2016/09/22 17:26, Omar Sandoval wrote: > As far as I know, space_cache=v2 isn't documented in the man page, so > hopefully anyone who managed to find out about it follows the mailing > list. If someone updates their kernel without updating btrfs-progs, the > new compat_ro bit will prevent the o

Re: Status of free-space-tree feature

2016-09-22 Thread Omar Sandoval
On Thu, Sep 22, 2016 at 05:47:59PM +, ojab wrote: > On 2016/09/22 17:26, Omar Sandoval wrote: > > As far as I know, space_cache=v2 isn't documented in the man page, so > > hopefully anyone who managed to find out about it follows the mailing > > list. If someone updates their kernel without upd

Re: Status of free-space-tree feature

2016-09-22 Thread Omar Sandoval
On Thu, Sep 22, 2016 at 12:10:09PM +0200, Hans van Kranenburg wrote: > Hi, > > On 09/22/2016 10:52 AM, David Sterba wrote: > > On Wed, Sep 21, 2016 at 01:31:52PM -0700, Omar Sandoval wrote: > I'm not sure I understand - can you explain why this is was so wrong? > Or Omar maybe? > >

Re: Status of free-space-tree feature

2016-09-22 Thread Omar Sandoval
On Thu, Sep 22, 2016 at 10:52:05AM +0200, David Sterba wrote: > On Wed, Sep 21, 2016 at 01:31:52PM -0700, Omar Sandoval wrote: > > > > I'm not sure I understand - can you explain why this is was so wrong? > > > > Or Omar maybe? > > > > > > > > If btrfsck wants to correct something (write), it can

Re: Status of free-space-tree feature

2016-09-22 Thread Hans van Kranenburg
Hi, On 09/22/2016 10:52 AM, David Sterba wrote: > On Wed, Sep 21, 2016 at 01:31:52PM -0700, Omar Sandoval wrote: I'm not sure I understand - can you explain why this is was so wrong? Or Omar maybe? If btrfsck wants to correct something (write), it can simply always and unc

Re: Status of free-space-tree feature

2016-09-22 Thread David Sterba
On Wed, Sep 21, 2016 at 01:31:52PM -0700, Omar Sandoval wrote: > > > I'm not sure I understand - can you explain why this is was so wrong? > > > Or Omar maybe? > > > > > > If btrfsck wants to correct something (write), it can simply always > > > and unconditionally invalidate the fst instead of tr

Re: Status of free-space-tree feature

2016-09-21 Thread Omar Sandoval
Hey, guys, On Wed, Sep 21, 2016 at 08:12:51AM -0400, Austin S. Hemmelgarn wrote: > On 2016-09-21 06:25, Holger Hoffstätte wrote: > > On 09/21/16 11:24, David Sterba wrote: > > > Hi, > > > > > > as you might have noticed, the [1] wiki Status page lists the > > > free-space-tree as 'Unstable', refe

Re: Status of free-space-tree feature

2016-09-21 Thread Austin S. Hemmelgarn
On 2016-09-21 06:25, Holger Hoffstätte wrote: On 09/21/16 11:24, David Sterba wrote: Hi, as you might have noticed, the [1] wiki Status page lists the free-space-tree as 'Unstable', referencing a problem with the bitmap endianity. This will affect only bigendian systems. There's one more probl

Re: Status of free-space-tree feature

2016-09-21 Thread Holger Hoffstätte
On 09/21/16 11:24, David Sterba wrote: > Hi, > > as you might have noticed, the [1] wiki Status page lists the > free-space-tree as 'Unstable', referencing a problem with the bitmap > endianity. This will affect only bigendian systems. > > There's one more problem that I overlooked but was pointe