Constification of certain storage functions

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@2038 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/stevedore.h

@@ -38,8 +38,8 @@ struct iovec;
 typedef void storage_init_f(struct stevedore *, const char *spec);
 typedef void storage_open_f(struct stevedore *);
 typedef struct storage *storage_alloc_f(struct stevedore *, size_t size);
-typedef void storage_trim_f(struct storage *, size_t size);
-typedef void storage_free_f(struct storage *);
+typedef void storage_trim_f(const struct storage *, size_t size);
+typedef void storage_free_f(const struct storage *);
 
 struct stevedore {
 	const char		*name;

bin/varnishd/storage_file.c

@@ -660,7 +660,7 @@ smf_alloc(struct stevedore *st, size_t size)
 /*--------------------------------------------------------------------*/
 
 static void
-smf_trim(struct storage *s, size_t size)
+smf_trim(const struct storage *s, size_t size)
 {
 	struct smf *smf;
 	struct smf_sc *sc;
@@ -688,7 +688,7 @@ smf_trim(struct storage *s, size_t size)
 /*--------------------------------------------------------------------*/
 
 static void
-smf_free(struct storage *s)
+smf_free(const struct storage *s)
 {
 	struct smf *smf;
 	struct smf_sc *sc;

bin/varnishd/storage_malloc.c

@@ -66,7 +66,7 @@ sma_alloc(struct stevedore *st, size_t size)
 }
 
 static void
-sma_free(struct storage *s)
+sma_free(const struct storage *s)
 {
 	struct sma *sma;
 
@@ -79,7 +79,7 @@ sma_free(struct storage *s)
 }
 
 static void
-sma_trim(struct storage *s, size_t size)
+sma_trim(const struct storage *s, size_t size)
 {
 	struct sma *sma;
 	void *p;