diff options
Diffstat (limited to 'buf.h')
-rw-r--r-- | buf.h | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -2,12 +2,12 @@ struct buf { int flags; uint dev; uint blockno; + struct sleeplock lock; struct buf *prev; // LRU cache list struct buf *next; struct buf *qnext; // disk queue uchar data[BSIZE]; }; -#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 |