Stub out kmem cache defrag API

[zfs] / include / sys / kmem.h

diff --git a/include/sys/kmem.h b/include/sys/kmem.h
index e90c6b8ceb2ce01686c74767d5c0b302b6fc210a..fd4c52e1ece801f90cd0cbbde28268bb560714a4 100644 (file)
--- a/include/sys/kmem.h
+++ b/include/sys/kmem.h
@@ -296,6 +296,15 @@ enum {
        KMC_BIT_DESTROY         = 17,   /* Destroy in progress */
 };
 
+/* kmem move callback return values */
+typedef enum kmem_cbrc {
+       KMEM_CBRC_YES           = 0,    /* Object moved */
+       KMEM_CBRC_NO            = 1,    /* Object not moved */
+       KMEM_CBRC_LATER         = 2,    /* Object not moved, try again later */
+       KMEM_CBRC_DONT_NEED     = 3,    /* Neither object is needed */
+       KMEM_CBRC_DONT_KNOW     = 4,    /* Object unknown */
+} kmem_cbrc_t;
+
 #define KMC_NOTOUCH            (1 << KMC_BIT_NOTOUCH)
 #define KMC_NODEBUG            (1 << KMC_BIT_NODEBUG)
 #define KMC_NOMAGAZINE         (1 << KMC_BIT_NOMAGAZINE)
@@ -324,6 +333,9 @@ extern struct rw_semaphore spl_kmem_cache_sem;
 #define SPL_KMEM_CACHE_OBJ_PER_SLAB_MIN        8       /* Minimum objects per slab */
 #define SPL_KMEM_CACHE_ALIGN           8       /* Default object alignment */
 
+#define POINTER_IS_VALID(p)            0       /* Unimplemented */
+#define POINTER_INVALIDATE(pp)                 /* Unimplemented */
+
 typedef int (*spl_kmem_ctor_t)(void *, void *, int);
 typedef void (*spl_kmem_dtor_t)(void *, void *);
 typedef void (*spl_kmem_reclaim_t)(void *);
@@ -393,11 +405,11 @@ typedef struct spl_kmem_cache {
 } spl_kmem_cache_t;
 #define kmem_cache_t           spl_kmem_cache_t
 
-extern spl_kmem_cache_t *
-spl_kmem_cache_create(char *name, size_t size, size_t align,
-        spl_kmem_ctor_t ctor, spl_kmem_dtor_t dtor, spl_kmem_reclaim_t reclaim,
-        void *priv, void *vmp, int flags);
-
+extern spl_kmem_cache_t *spl_kmem_cache_create(char *name, size_t size,
+       size_t align, spl_kmem_ctor_t ctor, spl_kmem_dtor_t dtor,
+       spl_kmem_reclaim_t reclaim, void *priv, void *vmp, int flags);
+extern void spl_kmem_cache_set_move(kmem_cache_t *,
+       kmem_cbrc_t (*)(void *, void *, size_t, void *));
 extern void spl_kmem_cache_destroy(spl_kmem_cache_t *skc);
 extern void *spl_kmem_cache_alloc(spl_kmem_cache_t *skc, int flags);
 extern void spl_kmem_cache_free(spl_kmem_cache_t *skc, void *obj);
@@ -410,6 +422,7 @@ void spl_kmem_fini(void);
 
 #define kmem_cache_create(name,size,align,ctor,dtor,rclm,priv,vmp,flags) \
         spl_kmem_cache_create(name,size,align,ctor,dtor,rclm,priv,vmp,flags)
+#define kmem_cache_set_move(skc, move) spl_kmem_cache_set_move(skc, move)
 #define kmem_cache_destroy(skc)                spl_kmem_cache_destroy(skc)
 #define kmem_cache_alloc(skc, flags)   spl_kmem_cache_alloc(skc, flags)
 #define kmem_cache_free(skc, obj)      spl_kmem_cache_free(skc, obj)