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authorAlex Elder <elder@inktank.com>2013-03-07 15:38:28 -0600
committerSage Weil <sage@inktank.com>2013-05-01 21:17:01 -0700
commite766d7b55e10f93c7bab298135a4e90dcc46620d (patch)
tree0b3bebb5ee06c1a63d2155c6ba3ce52f83d63fe7 /include/linux/ceph/messenger.h
parent6aaa4511deb4b0fd776d1153dc63a89cdc024fb8 (diff)
libceph: implement pages array cursor
Implement and use cursor routines for page array message data items for outbound message data. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'include/linux/ceph/messenger.h')
-rw-r--r--include/linux/ceph/messenger.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index 76b4645e2dff..b53b9ef65009 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -105,6 +105,12 @@ struct ceph_msg_data_cursor {
unsigned int vector_offset; /* bytes from vector */
};
#endif /* CONFIG_BLOCK */
+ struct { /* pages */
+ size_t resid; /* bytes from array */
+ unsigned int page_offset; /* offset in page */
+ unsigned short page_index; /* index in array */
+ unsigned short page_count; /* pages in array */
+ };
struct { /* pagelist */
struct page *page; /* page from list */
size_t offset; /* bytes from list */