xnu-7195.101.1.tar.gz

[apple/xnu.git] / bsd / sys / vnode_internal.h

diff --git a/bsd/sys/vnode_internal.h b/bsd/sys/vnode_internal.h
index a25c11c3e36f3f63b81de0c6761f16a0d52d5c30..4af412789330f2d9743d99dccbd2bbfaea3d7b17 100644 (file)
--- a/bsd/sys/vnode_internal.h
+++ b/bsd/sys/vnode_internal.h
@@ -121,7 +121,7 @@ typedef struct vnode_resolve *vnode_resolve_t;
  * v_freelist is locked by the global vnode_list_lock
  * v_mntvnodes is locked by the mount_lock
  * v_nclinks and v_ncchildren are protected by the global name_cache_lock
- * v_cleanblkhd and v_dirtyblkhd and v_iterblkflags are locked via the global buf_mtxp
+ * v_cleanblkhd and v_dirtyblkhd and v_iterblkflags are locked via the global buf_mtx
  * the rest of the structure is protected by the vnode_lock
  */
 struct vnode {
@@ -184,6 +184,9 @@ struct vnode {
                                                 *  if VFLINKTARGET is set, if  VFLINKTARGET is not
                                                 *  set, points to target */
 #endif /* CONFIG_FIRMLINKS */
+#if CONFIG_IO_COMPRESSION_STATS
+       io_compression_stats_t io_compression_stats;            /* IO compression statistics */
+#endif /* CONFIG_IO_COMPRESSION_STATS */
 };
 
 #define v_mountedhere   v_un.vu_mountedhere
@@ -621,6 +624,19 @@ int     vnode_isinuse_locked(vnode_t, int, int );
 
 #endif /* BSD_KERNEL_PRIVATE */
 
+#if CONFIG_IO_COMPRESSION_STATS
+/*
+ * update the IO compression stats tracked at block granularity
+ */
+int vnode_updateiocompressionblockstats(vnode_t vp, uint32_t size_bucket);
+
+/*
+ * update the IO compression stats tracked for the buffer
+ */
+int vnode_updateiocompressionbufferstats(vnode_t vp, uint64_t uncompressed_size, uint64_t compressed_size, uint32_t size_bucket, uint32_t compression_bucket);
+
+#endif /* CONFIG_IO_COMPRESSION_STATS */
+
 extern bool rootvp_is_ssd;
 
 #endif /* !_SYS_VNODE_INTERNAL_H_ */