[PATCH] Avoid unnecessary ide-cd cache flushes
Jens Axboe [Sun, 1 May 2005 19:12:52 +0000 (12:12 -0700)]
Only issue a cdrom cache flush if we've done write to the drive.  The
->media_written() flag keeps track of that.

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/cdrom/cdrom.c

index 9deca49..beaa561 100644 (file)
@@ -645,7 +645,7 @@ static int cdrom_mrw_exit(struct cdrom_device_info *cdi)
                ret = cdrom_mrw_bgformat_susp(cdi, 0);
        }
 
-       if (!ret)
+       if (!ret && cdi->media_written)
                ret = cdrom_flush_cache(cdi);
 
        return ret;