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@xxxxxxxxx>
---
include/linux/ceph/ceph_features.h | 5 ++++-
net/ceph/osd_client.c | 10 ++++++++++
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h
index 6b4b059c158f..d2d78861c30a 100644
--- a/include/linux/ceph/ceph_features.h
+++ b/include/linux/ceph/ceph_features.h
@@ -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
@@ -120,7 +122,8 @@ 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 | \
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 95d7443943fc..fb9da42eae98 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1814,6 +1814,7 @@ 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);
@@ -1885,6 +1886,15 @@ 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;
--
2.4.3
--
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