On Wed, Jan 25, 2017 at 05:06:36PM -0800, Omar Sandoval wrote:
> From: Omar Sandoval <osandov@xxxxxx>
>
> When you snapshot a subvolume containing a subvolume, you get a
> placeholder read-only directory where the subvolume would be. These
> directory inodes have ->i_ops set to btrfs_dir_ro_inode_operations.
> Previously, this didn't include the xattr operation callbacks. The
> conversion to xattr_handlers missed this case, leading to bogus attempts
> to set xattrs on these inodes. This manifested itself as failures when
> running delayed inodes.
>
> To fix this, clear the IOP_XATTR in ->i_opflags on these inodes.
>
> Fixes: 6c6ef9f26e59 ("xattr: Stop calling {get,set,remove}xattr inode operations")
> Cc: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
> Reported-by: Chris Murphy <lists@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Omar Sandoval <osandov@xxxxxx>
> ---
> Applies to v4.10-rc4. Chris, this fixes the issue for me, could you please test
> it out? Andreas, does this make sense? I'll try to cook up an xfstest for this.
>
(Sorry, accidentally resent v1, ignore this one and just look at v2).
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