Jeff Layton a065f662da ceph: return -ERANGE if virtual xattr value didn't fit in buffer
[ Upstream commit 3b421018f48c482bdc9650f894aa1747cf90e51d ]

The getxattr manpage states that we should return ERANGE if the
destination buffer size is too small to hold the value.
ceph_vxattrcb_layout does this internally, but we should be doing
this for all vxattrs.

Fix the only caller of getxattr_cb to check the returned size
against the buffer length and return -ERANGE if it doesn't fit.
Drop the same check in ceph_vxattrcb_layout and just rely on the
caller to handle it.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Acked-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-08-06 19:05:22 +02:00
..
2018-07-08 15:30:51 +02:00
2019-07-31 07:28:47 +02:00
2018-12-17 09:28:54 +01:00
2018-12-21 14:13:04 +01:00
2017-09-04 19:05:15 -04:00