diff options
Diffstat (limited to 'include/kernel/buf.h')
| -rw-r--r-- | include/kernel/buf.h | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/include/kernel/buf.h b/include/kernel/buf.h deleted file mode 100644 index d0d849c..0000000 --- a/include/kernel/buf.h +++ /dev/null @@ -1,35 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Copyright (C) 2026 Richard QIn - */ - -#pragma once -#include "common/types.h" -#include "kernel/spinlock.h" - -#define BSIZE 1024 -#define NBUF 30 - -struct Buf -{ - int valid; // Whether the data has been read from the disk (1=valid, 0=invalid) - int disk; // Whether it has been held by the driver (dirty bit/write-back flag is usually extended here) - uint32 dev; // Device Number - uint32 blockno; // Block number - uint32 refcnt; // Reference Counting - struct Buf *prev; // LRU linked list - struct Buf *next; - uchar data[BSIZE]; - - Mutex lock; // Sleep Lock -}; - -namespace BufferCache -{ - void init(); - struct Buf *bread(uint32 dev, uint32 blockno); - void bwrite(struct Buf *b); - void brelse(struct Buf *b); - void bpin(struct Buf *b); - void bunpin(struct Buf *b); -} // namespace BufferCache |
