diff options
| author | Liuhua Wang <lwang@suse.com> | 2014-09-13 02:08:28 -0500 |
|---|---|---|
| committer | Jonathan Brassow <jbrassow@redhat.com> | 2014-09-15 16:08:35 -0500 |
| commit | 829e5a40373a2ef1721dc9210350c86c4b9d70f7 (patch) | |
| tree | 3e8670dfd3141eb619b362e931cdf9ab4177b496 /daemons/cmirrord | |
| parent | e9216eedfe8189947c506041d8fc9e879fac6d58 (diff) | |
| download | lvm2-829e5a40373a2ef1721dc9210350c86c4b9d70f7.tar.gz | |
cmirror: fix endian issues on s390
Cmirrord has endian bugs, which cause failure to lvcreate a mirrored lv
on s390.
- data_size is uint32, should not use xlate64 to convert, which will
cause data_size 0 after xlate.
- request_type and data_size still used by local(v5_data_switch),
should convert later. If request_type xlate too early, it will
cause request_type judge error; if data_size xlate too early, it
will cause coredump in case DM_ULOG_CLEAR_REGION.
- when receiving package in clog_request_from_network. vp[0] will always
be little endian. We could use xlate64(vp[0]) == vp[0] to decide if
the local node is little endian or not.
Signed-off-by: Lidong Zhong<lzhong@suse.com> & Liuhua Wang <lwang@suse.com>
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Diffstat (limited to 'daemons/cmirrord')
| -rw-r--r-- | daemons/cmirrord/compat.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/daemons/cmirrord/compat.c b/daemons/cmirrord/compat.c index 3f7a9b51d..4955f50b2 100644 --- a/daemons/cmirrord/compat.c +++ b/daemons/cmirrord/compat.c @@ -126,13 +126,14 @@ static int v5_endian_to_network(struct clog_request *rq) u_rq->error = xlate32(u_rq->error); u_rq->seq = xlate32(u_rq->seq); - u_rq->request_type = xlate32(u_rq->request_type); - u_rq->data_size = xlate64(u_rq->data_size); rq->originator = xlate32(rq->originator); v5_data_endian_switch(rq, 1); + u_rq->request_type = xlate32(u_rq->request_type); + u_rq->data_size = xlate32(u_rq->data_size); + return size; } @@ -167,7 +168,7 @@ static int v5_endian_from_network(struct clog_request *rq) u_rq->error = xlate32(u_rq->error); u_rq->seq = xlate32(u_rq->seq); u_rq->request_type = xlate32(u_rq->request_type); - u_rq->data_size = xlate64(u_rq->data_size); + u_rq->data_size = xlate32(u_rq->data_size); rq->originator = xlate32(rq->originator); @@ -187,7 +188,7 @@ int clog_request_from_network(void *data, size_t data_len) switch (version) { case 5: /* Upstream */ - if (version == unconverted_version) + if (version == vp[0]) return 0; break; case 4: /* RHEL 5.[45] */ |