xnu-2050.24.15.tar.gz

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

diff --git a/bsd/sys/ubc_internal.h b/bsd/sys/ubc_internal.h
index 7c73b04ee119d01035404d76137263c42fb565dd..d7197f089707ffe87193b9d9db0221cfc5c285d3 100644 (file)
--- a/bsd/sys/ubc_internal.h
+++ b/bsd/sys/ubc_internal.h
@@ -58,8 +58,11 @@
 
 extern struct zone     *ubc_info_zone;
 
+/* 
+ * Maximum number of vfs clusters per vnode
+ */
+#define MAX_CLUSTERS   CONFIG_MAX_CLUSTERS
 
-#define MAX_CLUSTERS 8         /* maximum number of vfs clusters per vnode */
 #define SPARSE_PUSH_LIMIT 4    /* limit on number of concurrent sparse pushes outside of the cl_lockw */
                                 /* once we reach this limit, we'll hold the lock */
 
@@ -84,6 +87,8 @@ struct cl_readahead {
 struct cl_writebehind {
        lck_mtx_t       cl_lockw;
         void   *       cl_scmap;                       /* pointer to sparse cluster map */
+       off_t           cl_last_write;                  /* offset of the end of the last write */
+       off_t           cl_seq_written;                 /* sequentially written bytes */
        int             cl_sparse_pushes;               /* number of pushes outside of the cl_lockw in progress */
        int             cl_sparse_wait;                 /* synchronous push is in progress */
        int             cl_number;                      /* number of packed write behind clusters currently valid */
@@ -121,6 +126,13 @@ struct ubc_info {
         struct cl_writebehind *cl_wbehind;     /* cluster write behind context */
 
        struct  cs_blob         *cs_blobs;      /* for CODE SIGNING */
+#if CHECK_CS_VALIDATION_BITMAP
+       void                    *cs_valid_bitmap;     /* right now: used only for signed files on the read-only root volume */
+       uint64_t                cs_valid_bitmap_size; /* Save original bitmap size in case the file size changes.
+                                                      * In the future, we may want to reconsider changing the
+                                                      * underlying bitmap to reflect the new file size changes.
+                                                      */
+#endif /* CHECK_CS_VALIDATION_BITMAP */
 };
 
 /* Defines for ui_flags */
@@ -156,6 +168,7 @@ __private_extern__ uint32_t cluster_hard_throttle_limit(vnode_t, uint32_t *, uin
 #define UBC_FOR_PAGEOUT         0x0002
 
 memory_object_control_t ubc_getobject(vnode_t, int);
+boolean_t      ubc_strict_uncached_IO(vnode_t);
 
 int    ubc_info_init(vnode_t);
 int    ubc_info_init_withsize(vnode_t, off_t);
@@ -178,6 +191,8 @@ int ubc_cs_getcdhash(vnode_t, off_t, unsigned char *);
 kern_return_t ubc_cs_blob_allocate(vm_offset_t *, vm_size_t *);
 void ubc_cs_blob_deallocate(vm_offset_t, vm_size_t);
 
+kern_return_t  ubc_cs_validation_bitmap_allocate( vnode_t );
+void           ubc_cs_validation_bitmap_deallocate( vnode_t );
 __END_DECLS