xv6

commit 95edc8921f3ac7d524815ce21c10ae96b81b5828
parent 41abfaa92e4b4b88f4b97f5d0829a6a4086f1be7
Author: rsc <rsc>
Date:   Thu,  7 Sep 2006 16:54:28 +0000

debugging help

Diffstat:
M
bio.c
 | 
1
+

1 file changed, 1 insertion(+), 0 deletions(-)
diff --git a/bio.c b/bio.c
@@ -80,6 +80,7 @@ bget(uint dev, uint sector)
         sleep(buf, &buf_table_lock);
       } else {
         b->flags |= B_BUSY;
+        // b->flags &= ~B_VALID; // Force reread from disk
         release(&buf_table_lock);
         return b;
       }