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authorSage Weil <sage@inktank.com>2012-07-30 18:15:23 -0700
committerSage Weil <sage@inktank.com>2012-07-30 18:15:23 -0700
commit546f04ef716dd49521774653d8b032a7d64c05d9 (patch)
tree162f548fc7a81b05eb1db715997b3a04693c1bcc /include/linux/ceph
parent1fe60e51a3744528f3939b1b1167ca909133d9ae (diff)
libceph: support crush tunables
The server side recently added support for tuning some magic crush variables. Decode these variables if they are present, or use the default values if they are not present. Corresponds to ceph.git commit 89af369c25f274fe62ef730e5e8aad0c54f1e5a5. Signed-off-by: caleb miles <caleb.miles@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com> Reviewed-by: Yehuda Sadeh <yehuda@inktank.com>
Diffstat (limited to 'include/linux/ceph')
-rw-r--r--include/linux/ceph/ceph_features.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h
index 342f93dbe162..dad579b0c0e6 100644
--- a/include/linux/ceph/ceph_features.h
+++ b/include/linux/ceph/ceph_features.h
@@ -12,12 +12,15 @@
#define CEPH_FEATURE_MONNAMES (1<<5)
#define CEPH_FEATURE_RECONNECT_SEQ (1<<6)
#define CEPH_FEATURE_DIRLAYOUTHASH (1<<7)
+/* bits 8-17 defined by user-space; not supported yet here */
+#define CEPH_FEATURE_CRUSH_TUNABLES (1<<18)
/*
* Features supported.
*/
#define CEPH_FEATURES_SUPPORTED_DEFAULT \
- (CEPH_FEATURE_NOSRCADDR)
+ (CEPH_FEATURE_NOSRCADDR | \
+ CEPH_FEATURE_CRUSH_TUNABLES)
#define CEPH_FEATURES_REQUIRED_DEFAULT \
(CEPH_FEATURE_NOSRCADDR)