fix getblk to actually lock the block

no more cons_put system calls
usertests tests two processes writing files

1 files changed, 11 insertions, 0 deletions

diff --git a/ulib.c b/ulib.c
index ccb9fd6..b759f45 100644
--- a/ulib.c
+++ b/ulib.c
@@ -26,6 +26,17 @@ strlen(char *s)
   return n;
 }
 
+void *
+memset(void *dst, int c, unsigned int n)
+{
+  char *d = (char *) dst;
+
+  while(n-- > 0)
+    *d++ = c;
+
+  return dst;
+}
+
 char *
 gets(char *buf, int max)
 {