2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-24 13:13:57 +08:00
linux-next/include/linux/ceph
Alex Elder 4c59b4a278 libceph: collapse all data items into one
It turns out that only one of the data item types is ever used at
any one time in a single message (currently).
    - A page array is used by the osd client (on behalf of the file
      system) and by rbd.  Only one osd op (and therefore at most
      one data item) is ever used at a time by rbd.  And the only
      time the file system sends two, the second op contains no
      data.
    - A bio is only used by the rbd client (and again, only one
      data item per message)
    - A page list is used by the file system and by rbd for outgoing
      data, but only one op (and one data item) at a time.

We can therefore collapse all three of our data item fields into a
single field "data", and depend on the messenger code to properly
handle it based on its type.

This allows us to eliminate quite a bit of duplicated code.

This is related to:
    http://tracker.ceph.com/issues/4429

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
2013-05-01 21:17:30 -07:00
..
auth.h libceph: wrap auth methods in a mutex 2013-05-01 21:17:15 -07:00
buffer.h
ceph_debug.h
ceph_features.h libceph: implement RECONNECT_SEQ feature 2013-05-01 21:17:09 -07:00
ceph_frag.h
ceph_fs.h libceph: update ceph_fs.h 2013-02-18 12:20:30 -06:00
ceph_hash.h
debugfs.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
decode.h Merge branch 'testing' of github.com:ceph/ceph-client into v3.8-rc5-testing 2013-01-30 07:54:34 -06:00
libceph.h libceph: define CEPH_MSG_MAX_MIDDLE_LEN 2013-05-01 21:16:29 -07:00
mdsmap.h ceph: update support for PGID64, PGPOOL3, OSDENC protocol features 2013-02-26 15:02:25 -08:00
messenger.h libceph: collapse all data items into one 2013-05-01 21:17:30 -07:00
mon_client.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2012-10-08 06:38:18 +09:00
msgpool.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
msgr.h libceph: implement RECONNECT_SEQ feature 2013-05-01 21:17:09 -07:00
osd_client.h libceph: kill osd request r_trail 2013-05-01 21:17:04 -07:00
osdmap.h libceph: rename ceph_calc_object_layout() 2013-05-01 21:16:17 -07:00
pagelist.h
rados.h libceph: update osd request/reply encoding 2013-02-26 15:02:50 -08:00
types.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00