ovl: don't fail copy up if no fileattr support on upper
commit 94fd1975 upstream. Christoph Fritz is reporting that failure to copy up fileattr when upper doesn't support fileattr or xattr results in a regression. Return success in these failure cases; this reverts overlayfs to the old behavior. Add a pr_warn_once() in these cases to still let the user know about the copy up failures. Reported-by: Christoph Fritz <chf.fritz@googlemail.com> Fixes: 72db8211 ("ovl: copy up sync/noatime fileattr flags") Cc: <stable@vger.kernel.org> # v5.15 Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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