pack: move install_packed_git()

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

cache.h

@@ -1613,7 +1613,6 @@ extern void (*report_garbage)(unsigned seen_bits, const char *path);
 
 extern void prepare_packed_git(void);
 extern void reprepare_packed_git(void);
-extern void install_packed_git(struct packed_git *pack);
 
 /*
  * Give a rough count of objects in the repository. This sacrifices accuracy

packfile.c

@@ -28,7 +28,7 @@ static unsigned int pack_used_ctr;
 static unsigned int pack_mmap_calls;
 static unsigned int peak_pack_open_windows;
 static unsigned int pack_open_windows;
-unsigned int pack_open_fds;
+static unsigned int pack_open_fds;
 static unsigned int pack_max_fds;
 static size_t peak_pack_mapped;
 static size_t pack_mapped;
@@ -658,3 +658,12 @@ struct packed_git *add_packed_git(const char *path, size_t path_len, int local)
 		hashclr(p->sha1);
 	return p;
 }
+
+void install_packed_git(struct packed_git *pack)
+{
+	if (pack->pack_fd != -1)
+		pack_open_fds++;
+
+	pack->next = packed_git;
+	packed_git = pack;
+}

packfile.h

@@ -28,6 +28,8 @@ extern unsigned int pack_open_fds;
 
 extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path);
 
+extern void install_packed_git(struct packed_git *pack);
+
 extern void pack_report(void);
 
 /*

sha1_file.c

@@ -719,15 +719,6 @@ void *xmmap(void *start, size_t length,
 	return ret;
 }
 
-void install_packed_git(struct packed_git *pack)
-{
-	if (pack->pack_fd != -1)
-		pack_open_fds++;
-
-	pack->next = packed_git;
-	packed_git = pack;
-}
-
 void (*report_garbage)(unsigned seen_bits, const char *path);
 
 static void report_helper(const struct string_list *list,