From: Rob Browning <rlb@defaultvalue.org>
Date: Sat, 5 Oct 2013 18:01:37 +0000 (-0500)
Subject: Handle EOPNOTSUPP as an indicator that Linux attrs are not supported.
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=4be97d75e109a339568aecd349302f1cce9faa23;p=packages%2Fb%2Fbup.git

Handle EOPNOTSUPP as an indicator that Linux attrs are not supported.

Add EOPNOTSUPP to the set of errno values in _add_linux_attr() that
indicate Linux attrs are not supported by the target filesystem.  The
problem was observed on ZFS-on-Linux, 0.6.2.

Thanks to Will Rouesnel <w.rouesnel@gmail.com> for the report and an
initial patch.

Signed-off-by: Rob Browning <rlb@defaultvalue.org>
---

diff --git a/lib/bup/metadata.py b/lib/bup/metadata.py
index c851525..d1806b5 100644
--- a/lib/bup/metadata.py
+++ b/lib/bup/metadata.py
@@ -550,9 +550,7 @@ class Metadata:
             except OSError, e:
                 if e.errno == errno.EACCES:
                     add_error('read Linux attr: %s' % e)
-                elif e.errno == errno.ENOTTY or e.errno == errno.ENOSYS:
-                    # ENOTTY: Function not implemented.
-                    # ENOSYS: Inappropriate ioctl for device.
+                elif e.errno in (errno.ENOTTY, errno.ENOSYS, errno.EOPNOTSUPP):
                     # Assume filesystem doesn't support attrs.
                     return
                 else: