enum bitmap_state {
BITMAP_ACTIVE = 0x001, /* the bitmap is in use */
BITMAP_STALE = 0x002, /* the bitmap file is out of date or had -EIO */
- BITMAP_WRITE_ERROR = 0x004, /* A write error has occurred */
BITMAP_HOSTENDIAN = 0x8000,
};
unsigned long daemon_lastrun; /* jiffies of last run */
unsigned long daemon_sleep; /* how many seconds between updates? */
- atomic_t pending_writes; /* pending writes to the bitmap file */
+ /*
+ * bitmap_writeback_daemon waits for file-pages that have been written,
+ * as there is no way to get a call-back when a page write completes.
+ */
+ mdk_thread_t *writeback_daemon;
+ spinlock_t write_lock;
wait_queue_head_t write_wait;
-
+ struct list_head complete_pages;
+ mempool_t *write_pool;
};
/* the bitmap API */