Skip to content

X
xv6-public
提交 912575ad 创建 作者: Frans Kaashoek's avatar Frans Kaashoek
浏览文件
操作

Remove left-over print statements

上级 d6dc5bcb
隐藏空白字符变更
内嵌 并排
正在显示 包含 0 行增加 和 6 行删除
bio.c
浏览文件 @ 912575ad
...@@ -65,16 +65,12 @@ bget(uint dev, uint blockno) ...@@ -65,16 +65,12 @@ bget(uint dev, uint blockno)
acquire(&bcache.lock); acquire(&bcache.lock);
// cprintf("bget %d\n", blockno);
// Is the block already cached? // Is the block already cached?
for(b = bcache.head.next; b != &bcache.head; b = b->next){ for(b = bcache.head.next; b != &bcache.head; b = b->next){
if(b->dev == dev && b->blockno == blockno){ if(b->dev == dev && b->blockno == blockno){
//cprintf("bget %d; get sleep lock for buffer %p\n", blockno, b - bcache.buf);
b->refcnt++; b->refcnt++;
release(&bcache.lock); release(&bcache.lock);
acquiresleep(&b->lock); acquiresleep(&b->lock);
//cprintf("bget: return buffer %p for blk %d\n", b - bcache.buf, blockno);
return b; return b;
} }
} }
...@@ -84,14 +80,12 @@ bget(uint dev, uint blockno) ...@@ -84,14 +80,12 @@ bget(uint dev, uint blockno)
// hasn't yet committed the changes to the buffer. // hasn't yet committed the changes to the buffer.
for(b = bcache.head.prev; b != &bcache.head; b = b->prev){ for(b = bcache.head.prev; b != &bcache.head; b = b->prev){
if(b->refcnt == 0 && (b->flags & B_DIRTY) == 0) { if(b->refcnt == 0 && (b->flags & B_DIRTY) == 0) {
// cprintf("bget %d; use %p for %d\n", b - bcache.buf, blockno);
b->dev = dev; b->dev = dev;
b->blockno = blockno; b->blockno = blockno;
b->flags = 0; b->flags = 0;
b->refcnt = 1; b->refcnt = 1;
release(&bcache.lock); release(&bcache.lock);
acquiresleep(&b->lock); acquiresleep(&b->lock);
// cprintf("bget: return buffer %p for blk %d\n", b - bcache.buf, blockno);
return b; return b;
} }
} }
......
您添加了 0 人 到此讨论。请谨慎行事。
请先完成此评论的编辑！
请 注册 或者 后发表评论