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ovl: fix workdir creation

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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@uni-freiburg.de>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: c11b9fdd6a ("ovl: remove posix_acl_default from workdir")
Cc: <stable@vger.kernel.org>
This commit is contained in:
Miklos Szeredi 2016-09-05 13:55:20 +02:00
parent 026e5e0cc1
commit e1ff3dd1ae
1 changed files with 2 additions and 2 deletions
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4
fs/overlayfs/super.c
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@ -835,11 +835,11 @@ static struct dentry *ovl_workdir_create(struct vfsmount *mnt,
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 */