Re: [PATCH v3] pstore: Don't use semaphores in always-atomic-context code

On Mon, 14 Mar 2022 19:59:53 +0100, Jann Horn wrote:

pstore_dump() is *always* invoked in atomic context (nowadays in an RCU read-side critical section, before that under a spinlock). It doesn't make sense to try to use semaphores here.

This is mostly a revert of commit ea84b580b955 ("pstore: Convert buf_lock to semaphore"), except that two parts aren't restored back exactly as they were:

[...]

Applied to for-next/pstore, thanks!

[1/1] pstore: Don't use semaphores in always-atomic-context code https://git.kernel.org/kees/c/8126b1c73108