diff options
Diffstat (limited to 'buf.h')
-rw-r--r-- | buf.h | 7 |
1 files changed, 3 insertions, 4 deletions
@@ -2,13 +2,12 @@ struct buf { int flags; uint dev; uint sector; - struct spinlock lock; - struct sleeplock sleeplock; struct buf *prev; // LRU cache list struct buf *next; struct buf *qnext; // disk queue uchar data[512]; }; -#define B_VALID 0x1 // buffer has been read from disk -#define B_DIRTY 0x2 // buffer needs to be written to disk +#define B_BUSY 0x1 // buffer is locked by some process +#define B_VALID 0x2 // buffer has been read from disk +#define B_DIRTY 0x4 // buffer needs to be written to disk |