Initial version of single-cpu xv6 with page tables

1 files changed, 2 insertions, 1 deletions

diff --git a/ide.c b/ide.c
index c0eb80a..7b12aa0 100644
--- a/ide.c
+++ b/ide.c
@@ -147,8 +147,9 @@ iderw(struct buf *b)
   
   // Wait for request to finish.
   // Assuming will not sleep too long: ignore proc->killed.
-  while((b->flags & (B_VALID|B_DIRTY)) != B_VALID)
+  while((b->flags & (B_VALID|B_DIRTY)) != B_VALID) {
     sleep(b, &idelock);
+  }
 
   release(&idelock);
 }