* Added vm_page_write_modified_page_range(), which is similar to

vm_page_write_modified_pages(), save that it only writes pages in the
  given range.
* Added vm_page_schedule_write_page_range() which schedules all modified
  pages in the given cache's range for writing by the page writer.
* Added _kern_sync_memory() syscall and the msync() POSIX function.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25620 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/posix/sys/mman.h

@@ -25,6 +25,11 @@
 /* mmap() error return code */
 #define MAP_FAILED		((void*)-1)
 
+/* msync() flags */
+#define MS_ASYNC		0x01
+#define MS_SYNC			0x02
+#define MS_INVALIDATE	0x04
+
 
 __BEGIN_DECLS
 
@@ -32,6 +37,8 @@ void*	mmap(void* address, size_t length, int protection, int flags,
 			int fd, off_t offset);
 int		munmap(void* address, size_t length);
 
+int		msync(void* address, size_t length, int flags);
+
 int		shm_open(const char* name, int openMode, mode_t permissions);
 int		shm_unlink(const char* name);