From: Sage Weil <sage@redhat.com>
Date: Thu, 8 Oct 2015 17:56:15 +0000 (-0400)
Subject: rados: define alloc hint flags
X-Git-Tag: v11.0.0~466^2~5
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=d179dd449ccd01762158622acd98482c5c2a6e99;p=ceph.git

rados: define alloc hint flags

Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/common/ceph_strings.cc b/src/common/ceph_strings.cc
index 2fef54168e14..9aa368dbc393 100644
--- a/src/common/ceph_strings.cc
+++ b/src/common/ceph_strings.cc
@@ -58,6 +58,30 @@ const char *ceph_osd_watch_op_name(int o)
 	}
 }
 
+const char *ceph_osd_alloc_hint_flag_name(int f)
+{
+	switch (f) {
+	case CEPH_OSD_ALLOC_HINT_FLAG_SEQUENTIAL_WRITE:
+		return "sequential_write";
+	case CEPH_OSD_ALLOC_HINT_FLAG_RANDOM_WRITE:
+		return "random_write";
+	case CEPH_OSD_ALLOC_HINT_FLAG_SEQUENTIAL_READ:
+		return "sequential_read";
+	case CEPH_OSD_ALLOC_HINT_FLAG_RANDOM_READ:
+		return "random_read";
+	case CEPH_OSD_ALLOC_HINT_FLAG_APPEND_ONLY:
+		return "append_only";
+	case CEPH_OSD_ALLOC_HINT_FLAG_IMMUTABLE:
+		return "immutable";
+	case CEPH_OSD_ALLOC_HINT_FLAG_SHORTLIVED:
+		return "shortlived";
+	case CEPH_OSD_ALLOC_HINT_FLAG_LONGLIVED:
+		return "longlived";
+	default:
+		return "???";
+	}
+}
+
 const char *ceph_mds_state_name(int s)
 {
 	switch (s) {
diff --git a/src/include/rados.h b/src/include/rados.h
index 9ea6ce799067..695febaf80e2 100644
--- a/src/include/rados.h
+++ b/src/include/rados.h
@@ -464,6 +464,19 @@ enum {
 
 const char *ceph_osd_watch_op_name(int o);
 
+enum {
+	CEPH_OSD_ALLOC_HINT_FLAG_SEQUENTIAL_WRITE = 1,
+	CEPH_OSD_ALLOC_HINT_FLAG_RANDOM_WRITE = 2,
+	CEPH_OSD_ALLOC_HINT_FLAG_SEQUENTIAL_READ = 4,
+	CEPH_OSD_ALLOC_HINT_FLAG_RANDOM_READ = 8,
+	CEPH_OSD_ALLOC_HINT_FLAG_APPEND_ONLY = 16,
+	CEPH_OSD_ALLOC_HINT_FLAG_IMMUTABLE = 32,
+	CEPH_OSD_ALLOC_HINT_FLAG_SHORTLIVED = 64,
+	CEPH_OSD_ALLOC_HINT_FLAG_LONGLIVED = 128,
+};
+
+const char *ceph_osd_alloc_hint_flag_name(int f);
+
 /*
  * an individual object operation.  each may be accompanied by some data
  * payload
@@ -535,6 +548,7 @@ struct ceph_osd_op {
 		struct {
 			__le64 expected_object_size;
 			__le64 expected_write_size;
+			__le32 flags;  /* CEPH_OSD_OP_ALLOC_HINT_FLAG_* */
 		} __attribute__ ((packed)) alloc_hint;
 		struct {
 			__le64 offset;