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| author | Alex Elder <elder@inktank.com> | 2013-03-14 14:09:06 -0500 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-05-01 21:17:57 -0700 |
| commit | a19308048182d5f9e16b03b1d1c038d9346c7589 (patch) | |
| tree | 1395d1027753afa2ab5caec1808385f3a68893be /net/ceph/messenger.c | |
| parent | fdce58ccb5df621695b079378c619046acabc778 (diff) | |
| download | linux-3.10-a19308048182d5f9e16b03b1d1c038d9346c7589.tar.gz linux-3.10-a19308048182d5f9e16b03b1d1c038d9346c7589.tar.bz2 linux-3.10-a19308048182d5f9e16b03b1d1c038d9346c7589.zip | |
libceph: record message data length
Keep track of the length of the data portion for a message in a
separate field in the ceph_msg structure. This information has
been maintained in wire byte order in the message header, but
that's going to change soon.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'net/ceph/messenger.c')
| -rw-r--r-- | net/ceph/messenger.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index ee160864e8e..fa9b4d0243a 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -2981,6 +2981,7 @@ void ceph_msg_data_set_pages(struct ceph_msg *msg, struct page **pages, BUG_ON(!pages); BUG_ON(!length); + BUG_ON(msg->data_length); BUG_ON(msg->data != NULL); data = ceph_msg_data_create(CEPH_MSG_DATA_PAGES); @@ -2990,6 +2991,7 @@ void ceph_msg_data_set_pages(struct ceph_msg *msg, struct page **pages, data->alignment = alignment & ~PAGE_MASK; msg->data = data; + msg->data_length = length; } EXPORT_SYMBOL(ceph_msg_data_set_pages); @@ -3000,6 +3002,7 @@ void ceph_msg_data_set_pagelist(struct ceph_msg *msg, BUG_ON(!pagelist); BUG_ON(!pagelist->length); + BUG_ON(msg->data_length); BUG_ON(msg->data != NULL); data = ceph_msg_data_create(CEPH_MSG_DATA_PAGELIST); @@ -3007,14 +3010,17 @@ void ceph_msg_data_set_pagelist(struct ceph_msg *msg, data->pagelist = pagelist; msg->data = data; + msg->data_length = pagelist->length; } EXPORT_SYMBOL(ceph_msg_data_set_pagelist); -void ceph_msg_data_set_bio(struct ceph_msg *msg, struct bio *bio) +void ceph_msg_data_set_bio(struct ceph_msg *msg, struct bio *bio, + size_t length) { struct ceph_msg_data *data; BUG_ON(!bio); + BUG_ON(msg->data_length); BUG_ON(msg->data != NULL); data = ceph_msg_data_create(CEPH_MSG_DATA_BIO); @@ -3022,6 +3028,7 @@ void ceph_msg_data_set_bio(struct ceph_msg *msg, struct bio *bio) data->bio = bio; msg->data = data; + msg->data_length = length; } EXPORT_SYMBOL(ceph_msg_data_set_bio); @@ -3200,6 +3207,7 @@ void ceph_msg_last_put(struct kref *kref) } ceph_msg_data_destroy(m->data); m->data = NULL; + m->data_length = 0; if (m->pool) ceph_msgpool_put(m->pool, m); |