From 5fadb1549df4ed9f7e58a54e7e96df6fed6b17cf Mon Sep 17 00:00:00 2001
From: Jiri Denemark <jdenemar@redhat.com>
Date: Tue, 21 Feb 2012 22:58:50 +0100
Subject: [PATCH] Introduce virStorageFileIsClusterFS

---
 src/libvirt_private.syms |  1 +
 src/util/storage_file.c  | 10 ++++++++++
 src/util/storage_file.h  |  1 +
 3 files changed, 12 insertions(+)

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 9e3573ff46..18a24e4854 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1011,6 +1011,7 @@ virStorageFileFormatTypeToString;
 virStorageFileFreeMetadata;
 virStorageFileGetMetadata;
 virStorageFileGetMetadataFromFD;
+virStorageFileIsClusterFS;
 virStorageFileIsSharedFS;
 virStorageFileIsSharedFSType;
 virStorageFileProbeFormat;
diff --git a/src/util/storage_file.c b/src/util/storage_file.c
index a8661e3b79..cd1c1421d8 100644
--- a/src/util/storage_file.c
+++ b/src/util/storage_file.c
@@ -1063,3 +1063,13 @@ int virStorageFileIsSharedFS(const char *path)
                                         VIR_STORAGE_FILE_SHFS_OCFS |
                                         VIR_STORAGE_FILE_SHFS_AFS);
 }
+
+int virStorageFileIsClusterFS(const char *path)
+{
+    /* These are coherent cluster filesystems known to be safe for
+     * migration with cache != none
+     */
+    return virStorageFileIsSharedFSType(path,
+                                        VIR_STORAGE_FILE_SHFS_GFS2 |
+                                        VIR_STORAGE_FILE_SHFS_OCFS);
+}
diff --git a/src/util/storage_file.h b/src/util/storage_file.h
index 96afb12689..13d0e87934 100644
--- a/src/util/storage_file.h
+++ b/src/util/storage_file.h
@@ -82,6 +82,7 @@ enum {
 };
 
 int virStorageFileIsSharedFS(const char *path);
+int virStorageFileIsClusterFS(const char *path);
 int virStorageFileIsSharedFSType(const char *path,
                                  int fstypes);
 
-- 
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