Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
全部。从 linux 内核中的 jbd2(journal block device2) 代码中，我看到了“JBUFFER_TRACE()”跟踪日志，例如“JBUFFER_TRACE(jh, "on shadow: sleep");”。
虽然我想知道如何在用户空间中打印信息。谢谢！