ovl: support the FS_IOC_FS[SG]ETXATTR ioctls
[ Upstream commit b21d9c435f935014d3e3fa6914f2e4fbabb0e94d ] They are the extended version of FS_IOC_FS[SG]ETFLAGS ioctls. xfs_io -c "chattr <flags>" uses the new ioctls for setting flags. This used to work in kernel pre v4.19, before stacked file ops introduced the ovl_ioctl whitelist. Reported-by: NDave Chinner <david@fromorbit.com> Fixes: d1d04ef8 ("ovl: stack file ops") Cc: <stable@vger.kernel.org> # v4.19 Signed-off-by: NAmir Goldstein <amir73il@gmail.com> Signed-off-by: NMiklos Szeredi <mszeredi@redhat.com> Signed-off-by: NSasha Levin <sashal@kernel.org>
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