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libceph: add ceph_decode_entity_addr

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Add a function for decoding an entity_addr_t. Once
CEPH_FEATURE_MSG_ADDR2 is enabled, the server daemons will start
encoding entity_addr_t differently.

Add a new helper function that can handle either format.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Jeff Layton 2019-06-03 14:45:16 -04:00 • committed by Ilya Dryomov
parent bc07532cc5
commit 6c37f0e641
3 changed files with 93 additions and 1 deletions
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2
include/linux/ceph/decode.h
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@ -230,6 +230,8 @@ static inline void ceph_decode_addr(struct ceph_entity_addr *a)
WARN_ON(a->in_addr.ss_family == 512);
}
extern int ceph_decode_entity_addr(void **p, void *end,
struct ceph_entity_addr *addr);
/*
* encoders
*/