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libceph: MOSDOpReply v7 encoding 

Empty request_redirect_t (struct ceph_request_redirect in the kernel
client) is now encoded with a bool.  NEW_OSDOPREPLY_ENCODING feature
bit overlaps with already supported CRUSH_TUNABLES5.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
This commit is contained in:
Ilya Dryomov 2016-02-03 15:25:48 +01:00
parent 97db9a8818
commit b0b31a8ffe
2 changed files with 14 additions and 1 deletions
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5
include/linux/ceph/ceph_features.h
View File

@ -73,6 +73,8 @@
#define CEPH_FEATURE_MON_STATEFUL_SUB (1ULL<<57) /* stateful mon subscription */
#define CEPH_FEATURE_MON_ROUTE_OSDMAP (1ULL<<57) /* peon sends osdmaps */
#define CEPH_FEATURE_CRUSH_TUNABLES5 (1ULL<<58) /* chooseleaf stable mode */
// duplicated since it was introduced at the same time as CEPH_FEATURE_CRUSH_TUNABLES5
#define CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING (1ULL<<58) /* New, v7 encoding */
/*
* The introduction of CEPH_FEATURE_OSD_SNAPMAPPER caused the feature
@ -119,7 +121,8 @@ static inline u64 ceph_sanitize_features(u64 features)
CEPH_FEATURE_OSD_PRIMARY_AFFINITY | \
CEPH_FEATURE_MSGR_KEEPALIVE2 | \
CEPH_FEATURE_CRUSH_V4 | \
CEPH_FEATURE_CRUSH_TUNABLES5)
CEPH_FEATURE_CRUSH_TUNABLES5 | \
CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING)
#define CEPH_FEATURES_REQUIRED_DEFAULT \
(CEPH_FEATURE_NOSRCADDR | \

10
net/ceph/osd_client.c
View File

@ -1770,6 +1770,7 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg)
u32 osdmap_epoch;
int already_completed;
u32 bytes;
u8 decode_redir;
unsigned int i;
tid = le64_to_cpu(msg->hdr.tid);
@ -1841,6 +1842,15 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg)
p += 8 + 4; /* skip replay_version */
p += 8; /* skip user_version */
if (le16_to_cpu(msg->hdr.version) >= 7)
ceph_decode_8_safe(&p, end, decode_redir, bad_put);
else
decode_redir = 1;
} else {
decode_redir = 0;
}
if (decode_redir) {
err = ceph_redirect_decode(&p, end, &redir);
if (err)
goto bad_put;