On 2/16/17 1:23 PM, Goffredo Baroncelli wrote:

On 2017-02-16 14:00, Ilan Schwarts wrote:

quoted

Hi,
Found the solution at: https://patchwork.kernel.org/patch/2825842/

The patches below provided by suse seem more general

	http://kernel.opensuse.org/cgit/kernel-source/tree/patches.suse/vfs-add-super_operations-get_inode_dev
	http://kernel.opensuse.org/cgit/kernel-source/tree/patches.suse/btrfs-provide-super_operations-get_inode_dev

Unfortunately is quite invasive

They're also incomplete.  The openSUSE kernel also needs:
http://kernel.suse.com/cgit/kernel-source/tree/patches.suse/btrfs-fs-super.c-add-new-super-block-devices-super_block_d.patch?h=SLE12-SP2
http://kernel.suse.com/cgit/kernel-source/tree/patches.suse/btrfs-btrfs-use-the-new-VFS-super_block_dev.patch?h=SLE12-SP2

... for ustat() to work properly.  I've just forward ported those to the
master kernel and am testing now.

The /proc/mountinfo thing isn't fixed with these patches either since
subvolumes report different device numbers and we don't represent
subvolumes as mounts.  That's what the patches that I had started
writing up a while ago do, but it's still very early for those.

-Jeff

quoted

On Thu, Feb 16, 2017 at 12:05 PM, Ilan Schwarts <ilan84@gmail.com <mailto:ilan84@gmail.com>> wrote:

    Hi,

    I hope its ok im reaching to you via mail..
    I read your message at: _https://marc.info/?l=linux-btrfs&m=148701370108477&w=2 <https://marc.info/?l=linux-btrfs&m=148701370108477&w=2>_

    I have the same issue in my kernel driver, Did you find an answer ?

    Thanks
    -
    Ilan Schwarts




-- 


-
Ilan Schwarts

-- 
Jeff Mahoney
SUSE Labs