log write() data

usertest for big write()s
push begin_trans/commit_trans down into syscalls

1 files changed, 2 insertions, 2 deletions

diff --git a/fs.c b/fs.c
index a414b65..a76788b 100644
--- a/fs.c
+++ b/fs.c
@@ -437,13 +437,13 @@ writei(struct inode *ip, char *src, uint off, uint n)
   if(off > ip->size || off + n < off)
     return -1;
   if(off + n > MAXFILE*BSIZE)
-    n = MAXFILE*BSIZE - off;
+    return -1;
 
   for(tot=0; tot<n; tot+=m, off+=m, src+=m){
     bp = bread(ip->dev, bmap(ip, off/BSIZE));
     m = min(n - tot, BSIZE - off%BSIZE);
     memmove(bp->data + off%BSIZE, src, m);
-    bwrite(bp);
+    log_write(bp);
     brelse(bp);
   }