write-or-die: add an fsync component for the loose object map

We'll soon be writing out a loose object map using the hashfile code.
Add an fsync component to allow us to handle fsyncing it correctly.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: bk2204

write-or-die.h

@@ -21,6 +21,7 @@ enum fsync_component {
 	FSYNC_COMPONENT_COMMIT_GRAPH		= 1 << 3,
 	FSYNC_COMPONENT_INDEX			= 1 << 4,
 	FSYNC_COMPONENT_REFERENCE		= 1 << 5,
+	FSYNC_COMPONENT_LOOSE_OBJECT_MAP	= 1 << 6,
 };
 
 #define FSYNC_COMPONENTS_OBJECTS (FSYNC_COMPONENT_LOOSE_OBJECT | \
@@ -44,7 +45,8 @@ enum fsync_component {
 			      FSYNC_COMPONENT_PACK_METADATA | \
 			      FSYNC_COMPONENT_COMMIT_GRAPH | \
 			      FSYNC_COMPONENT_INDEX | \
-			      FSYNC_COMPONENT_REFERENCE)
+			      FSYNC_COMPONENT_REFERENCE | \
+			      FSYNC_COMPONENT_LOOSE_OBJECT_MAP)
 
 #ifndef FSYNC_COMPONENTS_PLATFORM_DEFAULT
 #define FSYNC_COMPONENTS_PLATFORM_DEFAULT FSYNC_COMPONENTS_DEFAULT