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[RFC,10/13] NFSD: Replace comment with lockdep assertion

Message ID 170620018365.2833.3114414936937483602.stgit@manet.1015granger.net (mailing list archive)
State New
Headers show
Series NFSD backchannel fixes | expand

Commit Message

Chuck Lever Jan. 25, 2024, 4:29 p.m. UTC 
From: Chuck Lever <chuck.lever@oracle.com>

Convert a code comment into a real assertion.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 fs/nfsd/nfs4callback.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 1e0f5a0bd804..dc308569bc31 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -1307,12 +1307,13 @@  void nfsd4_shutdown_callback(struct nfs4_client *clp)
 	nfsd41_cb_inflight_wait_complete(clp);
 }
 
-/* requires cl_lock: */
 static struct nfsd4_conn * __nfsd4_find_backchannel(struct nfs4_client *clp)
 {
 	struct nfsd4_session *s;
 	struct nfsd4_conn *c;
 
+	lockdep_assert_held(&clp->cl_lock);
+
 	list_for_each_entry(s, &clp->cl_sessions, se_perclnt) {
 		list_for_each_entry(c, &s->se_conns, cn_persession) {
 			if (c->cn_flags & NFS4_CDFC4_BACK)