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libceph: set the data pointers when encoding ops

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Still using the osd request r_data_in and r_data_out pointer, but
we're basically only referring to it via the data pointers in the
osd ops.  And we're transferring that information to the request
or reply message only when the op indicates it's needed, in
osd_req_encode_op().

To avoid a forward reference, ceph_osdc_msg_data_set() was moved up
in the file.

Don't bother calling ceph_osd_data_init(), in ceph_osd_alloc(),
because the ops array will already be zeroed anyway.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
This commit is contained in:
Alex Elder 2013-04-05 01:27:12 -05:00 • committed by Sage Weil
parent a4ce40a9a7
commit ec9123c567
2 changed files with 32 additions and 33 deletions
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2
include/linux/ceph/osd_client.h
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@ -51,7 +51,7 @@ struct ceph_osd {
#define CEPH_OSD_MAX_OP 2
enum ceph_osd_data_type {
CEPH_OSD_DATA_TYPE_NONE,
CEPH_OSD_DATA_TYPE_NONE = 0,
CEPH_OSD_DATA_TYPE_PAGES,
CEPH_OSD_DATA_TYPE_PAGELIST,
#ifdef CONFIG_BLOCK