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authorMartin Brandenburg <martin@omnibond.com>2016-08-12 19:02:31 +0300
committerMartin Brandenburg <martin@omnibond.com>2016-08-12 22:12:54 +0300
commit482664ddba81b3a5404fd083bb9697dfffc0b6a4 (patch)
treef4dd0268a8cf58fd898f73dd7b26a0a9ef5d2eff /fs/orangefs/downcall.h
parentf2ee3b759593c184f1249e03d613a84b4b69db2b (diff)
downloadlinux-482664ddba81b3a5404fd083bb9697dfffc0b6a4.tar.xz
orangefs: add features op
This is a new userspace operation, which will be done if the client-core version is greater than or equal to 2.9.6. This will provide a way to implement optional features and to determine which features are supported by the client-core. If the client-core version is older than 2.9.6, no optional features are supported and the op will not be done. The intent is to allow protocol extensions without relying on the client-core's current behavior of ignoring what it doesn't understand. Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Diffstat (limited to 'fs/orangefs/downcall.h')
-rw-r--r--fs/orangefs/downcall.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/orangefs/downcall.h b/fs/orangefs/downcall.h
index db6e8722a89e..3b8923f8bf21 100644
--- a/fs/orangefs/downcall.h
+++ b/fs/orangefs/downcall.h
@@ -101,6 +101,11 @@ struct orangefs_fs_key_response {
char fs_key[FS_KEY_BUF_SIZE];
};
+/* 2.9.6 */
+struct orangefs_features_response {
+ __u64 features;
+};
+
struct orangefs_downcall_s {
__s32 type;
__s32 status;
@@ -122,6 +127,7 @@ struct orangefs_downcall_s {
struct orangefs_param_response param;
struct orangefs_perf_count_response perf_count;
struct orangefs_fs_key_response fs_key;
+ struct orangefs_features_response features;
} resp;
};