On 06/13/2012 05:10 AM, Ted Ts'o wrote:
> On Tue, Jun 12, 2012 at 04:44:23PM -0400, Chris Mason wrote:
>> On Tue, Jun 12, 2012 at 01:15:27PM -0600, Ted Ts'o wrote:
>>> It appears the NOCOW_FL flag is currently a no-op in the 3.2 kernel?
>> It's not a noop, but it is only setting the NODATACOW flag
... and e2fsprogs 1.42.4 has been released, with the No_COW lsattr and
chattr support. It's in all of the usual places:
ftp://ftp.kernel.org/pub/linux/kernel/people/tytso/e2fsprogs/v1.42.4
and
http://prdownloads.sourceforge.net/e2fsprogs/e2fsprogs-1.42.4.tar.gz
... and I've uploaded a release
On Tue, Jun 12, 2012 at 04:44:23PM -0400, Chris Mason wrote:
> On Tue, Jun 12, 2012 at 01:15:27PM -0600, Ted Ts'o wrote:
> > It appears the NOCOW_FL flag is currently a no-op in the 3.2 kernel?
>
> It's not a noop, but it is only setting the NODATACOW flag. It needs to
> set the nodatasum flag as
On Tue, Jun 12, 2012 at 04:44:23PM -0400, Chris Mason wrote:
> On Tue, Jun 12, 2012 at 01:15:27PM -0600, Ted Ts'o wrote:
> > It appears the NOCOW_FL flag is currently a no-op in the 3.2 kernel?
>
> It's not a noop, but it is only setting the NODATACOW flag. It needs to
> set the nodatasum flag as
On 06/12/2012 10:44 PM, Chris Mason wrote:
> On Tue, Jun 12, 2012 at 01:15:27PM -0600, Ted Ts'o wrote:
>> It appears the NOCOW_FL flag is currently a no-op in the 3.2 kernel?
>
> It's not a noop, but it is only setting the NODATACOW flag. It needs to
> set the nodatasum flag as well, just like th
On Tue, Jun 12, 2012 at 01:15:27PM -0600, Ted Ts'o wrote:
> It appears the NOCOW_FL flag is currently a no-op in the 3.2 kernel?
It's not a noop, but it is only setting the NODATACOW flag. It needs to
set the nodatasum flag as well, just like the mount -o nodatacow mount
option does.
I'll fix th
It appears the NOCOW_FL flag is currently a no-op in the 3.2 kernel?
{/mnt}
2062# grep /mnt /proc/mounts
/dev/mapper/funarg-btrfs /mnt btrfs rw,relatime,space_cache 0 0
{/mnt}
2063# sync ; filefrag -v a
Filesystem type is: 9123683e
File size of a is 32768 (8 blocks, blocksize 4096)
ext log
On Tue, Jun 12, 2012 at 07:41:25PM +0200, Goffredo Baroncelli wrote:
>
> After a bit of googling I found a Liu Bo patches which add the ability
> to set the NOCOW flags to a btrfs file.[1]
>
> However it seems that it was not present in the current (v1.42.3)
> e2fsprogs suite.
>
> There is any r
On 06/10/2012 08:47 AM, Goffredo Baroncelli wrote:
> Hi all,
>
> which is the supposed corrected way to set the file flag FS_NOCOW_FL ? I
> know that exists the associated ioctl FS_IOC_SETFLAGS; which I didn't
> found is an user-space tool to use to set the flags.
>
> I am missing something ?
Af
