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| author | Alex Elder <elder@inktank.com> | 2013-02-14 12:16:43 -0600 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-05-01 21:16:38 -0700 |
| commit | 02afca6ca00b7972887c5cc77068356f33bdfc18 (patch) | |
| tree | a335532b314d8da309bb7313cc84ae973d3f5ab0 /fs/ceph | |
| parent | e0c594878e3211b09208c779df5f996f0b831d9e (diff) | |
| download | linux-02afca6ca00b7972887c5cc77068356f33bdfc18.tar.gz linux-02afca6ca00b7972887c5cc77068356f33bdfc18.tar.bz2 linux-02afca6ca00b7972887c5cc77068356f33bdfc18.zip | |
libceph: isolate message page field manipulation
Define a function ceph_msg_data_set_pages(), which more clearly
abstracts the assignment page-related fields for data in a ceph
message structure. Use this new function in the osd client and mds
client.
Ideally, these fields would never be set more than once (with
BUG_ON() calls to guarantee that). At the moment though the osd
client sets these every time it receives a message, and in the event
of a communication problem this can happen more than once. (This
will be resolved shortly, but setting up these helpers first makes
it all a bit easier to work with.)
Rearrange the field order in a ceph_msg structure to group those
that are used to define the possible data payloads.
This partially resolves:
http://tracker.ceph.com/issues/4263
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'fs/ceph')
| -rw-r--r-- | fs/ceph/mds_client.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index ecfb738bca30..90198a407023 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -1721,8 +1721,8 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, msg->front.iov_len = p - msg->front.iov_base; msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); - msg->pages = req->r_pages; - msg->page_count = req->r_num_pages; + ceph_msg_data_set_pages(msg, req->r_pages, req->r_num_pages, 0); + msg->hdr.data_len = cpu_to_le32(req->r_data_len); msg->hdr.data_off = cpu_to_le16(0); |