#ifndef _SIERRA_MS_H_
#define _SIERRA_MS_H_
extern int sierra_ms_init(struct us_data *us);
#endif
, up to ~Jewel.  The highlights are:

- per-session request trees (vs a global per-client tree)
- per-session locking (vs a global per-client rwlock)
- homeless OSD session
- no ad-hoc global per-client lists
- support for pool quotas
- foundation for watch/notify v2 support
- foundation for map check (pool deletion detection) support

The switchover is incomplete: lingering requests can be setup and
teared down but aren't ever reestablished.  This functionality is
restored with the introduction of the new lingering infrastructure
(ceph_osd_linger_request, linger_work, etc) in a later commit.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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