X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/15129b1c8dbb3650c63b70adb1cad9af601c6c17..143464d58d2bd6378e74eec636961ceb0d32fb91:/bsd/kern/ubc_subr.c

diff --git a/bsd/kern/ubc_subr.c b/bsd/kern/ubc_subr.c
index f9ae6591b..2916f3e08 100644
--- a/bsd/kern/ubc_subr.c
+++ b/bsd/kern/ubc_subr.c
@@ -1744,6 +1744,9 @@ ubc_map(vnode_t vp, int flags)
 			if ( !ISSET(uip->ui_flags, UI_ISMAPPED))
 			        need_ref = 1;
 			SET(uip->ui_flags, (UI_WASMAPPED | UI_ISMAPPED));
+			if (flags & PROT_WRITE) {
+				SET(uip->ui_flags, UI_MAPPEDWRITE);
+			}
 		}
 		CLR(uip->ui_flags, UI_MAPBUSY);