Commit e1ff3dd1 authored Sep 05, 2016 by Miklos Szeredi

ovl: fix workdir creation



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: c11b9fdd ("ovl: remove posix_acl_default from workdir")
Cc: <stable@vger.kernel.org>

parent 026e5e0c

fs/overlayfs/super.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -835,11 +835,11 @@ 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 */

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