/*
* Perform a flush request on a block device, flushing and invalidating all
* blocks associated with this device, both in the local cache and in VM.
* This operation is called after a block device is closed and must prevent
* that stale copies of blocks remain in any cache.
*/
void
lmfs_bflush(dev_t dev)
{
/* First flush any dirty blocks on this device to disk. */
lmfs_flushdev(dev);
/* Then purge any blocks associated with the device. */
lmfs_invalidate(dev);
}
/*===========================================================================*
* fs_flush *
*===========================================================================*/
int fs_flush()
{
/* Flush the blocks of a device from the cache after writing any dirty blocks
* to disk.
*/
dev_t dev = (dev_t) fs_m_in.REQ_DEV;
if(dev == fs_dev) return(EBUSY);
lmfs_flushall();
lmfs_invalidate(dev);
return(OK);
}
