Cosmetic cleanup: fsinit reads sb and calls loginit. initialize icache

in main.c and don't make it disk specific; the icache is shared.  This
doesn't matter since we have only one disk, but conceptually cleaner
and maybe helpful to students for mount lab.

1 files changed, 3 insertions, 5 deletions

diff --git a/kernel/log.c b/kernel/log.c
index 59984db..5e884bb 100644
--- a/kernel/log.c
+++ b/kernel/log.c
@@ -52,16 +52,14 @@ static void recover_from_log(void);
 static void commit();
 
 void
-initlog(int dev)
+initlog(int dev, struct superblock *sb)
 {
   if (sizeof(struct logheader) >= BSIZE)
     panic("initlog: too big logheader");
 
-  struct superblock sb;
   initlock(&log.lock, "log");
-  readsb(dev, &sb);
-  log.start = sb.logstart;
-  log.size = sb.nlog;
+  log.start = sb->logstart;
+  log.size = sb->nlog;
   log.dev = dev;
   recover_from_log();
 }