This is a note to let you know that I've just added the patch titled
ovl: fix workdir creation
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ovl-fix-workdir-creation.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e1ff3dd1ae52cef5b5373c8cc4ad949c2c25a71c Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Date: Mon, 5 Sep 2016 13:55:20 +0200
Subject: ovl: fix workdir creation
From: Miklos Szeredi <mszeredi@xxxxxxxxxx>
commit e1ff3dd1ae52cef5b5373c8cc4ad949c2c25a71c upstream.
Workdir creation fails in latest kernel.
Fix by allowing EOPNOTSUPP as a valid return value from
vfs_removexattr(XATTR_NAME_POSIX_ACL_*). Upper filesystem may not support
ACL and still be perfectly able to support overlayfs.
Reported-by: Martin Ziegler <ziegler@xxxxxxxxxxxxxxx>
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Fixes: c11b9fdd6a61 ("ovl: remove posix_acl_default from workdir")
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/overlayfs/super.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -784,11 +784,11 @@ retry:
goto out_dput;
err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_DEFAULT);
- if (err && err != -ENODATA)
+ if (err && err != -ENODATA && err != -EOPNOTSUPP)
goto out_dput;
err = vfs_removexattr(work, XATTR_NAME_POSIX_ACL_ACCESS);
- if (err && err != -ENODATA)
+ if (err && err != -ENODATA && err != -EOPNOTSUPP)
goto out_dput;
/* Clear any inherited mode bits */
Patches currently in stable-queue which might be from mszeredi@xxxxxxxxxx are
queue-4.4/ovl-listxattr-use-strnlen.patch
queue-4.4/ovl-remove-posix_acl_default-from-workdir.patch
queue-4.4/ovl-don-t-copy-up-opaqueness.patch
queue-4.4/ovl-proper-cleanup-of-workdir.patch
queue-4.4/ovl-fix-workdir-creation.patch
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