Merge r112 from branches/5.0:

os_file_handle_error(): Map the error codes EXDEV, ENOTDIR, and EISDIR
to the new code OS_FILE_PATH_ERROR.  Treat this code as OS_FILE_PATH_ERROR.
This fixes the crash on RENAME TABLE when the .ibd file is a symbolic link
to a different file system.  (Bug #15991)

include/os0file.h

@@ -91,9 +91,10 @@ log. */
 #define	OS_FILE_NOT_FOUND		71
 #define	OS_FILE_DISK_FULL		72
 #define	OS_FILE_ALREADY_EXISTS		73
-#define OS_FILE_AIO_RESOURCES_RESERVED	74	/* wait for OS aio resources
+#define	OS_FILE_PATH_ERROR		74
+#define	OS_FILE_AIO_RESOURCES_RESERVED	75	/* wait for OS aio resources
 						to become available again */
-#define	OS_FILE_ERROR_NOT_SPECIFIED	75
+#define	OS_FILE_ERROR_NOT_SPECIFIED	76
 
 /* Types for aio operations */
 #define OS_FILE_READ	10

os/os0file.c

@@ -311,6 +311,8 @@ os_file_get_last_error(
 		return(OS_FILE_NOT_FOUND);
 	} else if (err == EEXIST) {
 		return(OS_FILE_ALREADY_EXISTS);
+	} else if (err == EXDEV || err == ENOTDIR || err == EISDIR) {
+		return(OS_FILE_PATH_ERROR);
 	} else {
 		return(100 + err);
 	}
@@ -360,7 +362,8 @@ os_file_handle_error(
 
 		return(TRUE);
 
-	} else if (err == OS_FILE_ALREADY_EXISTS) {
+	} else if (err == OS_FILE_ALREADY_EXISTS
+			|| err == OS_FILE_PATH_ERROR) {
 
 		return(FALSE);
 	} else {
@@ -464,7 +467,8 @@ os_file_handle_error_no_exit(
 
 		return(TRUE);
 
-	} else if (err == OS_FILE_ALREADY_EXISTS) {
+	} else if (err == OS_FILE_ALREADY_EXISTS
+			|| err == OS_FILE_PATH_ERROR) {
 
 		return(FALSE);
 	} else {