On Sun, Oct 28 2007, Aneesh Kumar K.V wrote: > if blktrace program segfault it will not be able > to call BLKTRACETEARDOWN. Now if we run the blktrace > again that would result in a failure to create the > block/<device> debugfs directory.This will result > in blk_remove_root() to be called which will set > blk_tree_root to NULL. But the debugfs block dir > still exist because it contain subdirectory. > > Now if we try to fix it using BLKTRACETEARDOWN > it won't work because blk_tree_root is NULL. > > Fix the same. > > Tested as below Looks good, will apply tomorrow after some brief testing. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-btrace" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
