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authorAlex Elder <elder@inktank.com>2013-03-14 14:09:06 -0500
committerSage Weil <sage@inktank.com>2013-05-01 21:17:56 -0700
commitfdce58ccb5df621695b079378c619046acabc778 (patch)
treeec1f5349bd40393ba124dc976fc122dd46428fc0 /include/linux/ceph
parentace6d3a96f00c271b3f337adcde8e8cbe39c3820 (diff)
downloadop-kernel-dev-fdce58ccb5df621695b079378c619046acabc778.zip
op-kernel-dev-fdce58ccb5df621695b079378c619046acabc778.tar.gz
libceph: record length of bio list with bio
When assigning a bio pointer to an osd request, we don't have an efficient way of knowing the total length bytes in the bio list. That information is available at the point it's set up by the rbd code, so record it with the osd data when it's set. This and the next patch are related to maintaining the length of a message's data independent of the message header, as described here: http://tracker.ceph.com/issues/4589 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'include/linux/ceph')
-rw-r--r--include/linux/ceph/osd_client.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 3b5ba31..fdda93e 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -71,7 +71,10 @@ struct ceph_osd_data {
};
struct ceph_pagelist *pagelist;
#ifdef CONFIG_BLOCK
- struct bio *bio;
+ struct {
+ struct bio *bio; /* list of bios */
+ size_t bio_length; /* total in list */
+ };
#endif /* CONFIG_BLOCK */
};
};
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