Btrfs devel - Apr 2013 - Is it currently possible to remount subvolume (not the whole filesystem) with nodatacow?

If so, please tell me, what is the first confirmed kernel version, which 
supports this. Or at least, is it available on Kernel 3.5.

I know, that it is possible to assign nodatacow attribute to files with 
"chattr +C <filename>", if the file has zero length.

Thank you
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Adam Ryczkowski
+48505919892 <callto:+48505919892>
Skype:sisteczko <skype:sisteczko>

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On Fri, Apr 12, 2013 at 02:34:59PM +0200, Adam Ryczkowski
wrote:
> If so, please tell me, what is the first confirmed kernel version, which
> supports this. Or at least, is it available on Kernel 3.5.
> 
> I know, that it is possible to assign nodatacow attribute to files with
> "chattr +C <filename>", if the file has zero length.
I''m working on per-subvolume mount options that would make possible to
do what you ask about.

david
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