lockd: Translate nlm__int__deadlock in __nlm4svc_proc_lock_msg()

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When nlmsvc_lock() detects a deadlock it returns the internal
sentinel nlm__int__deadlock (30001), which version-specific
handlers must translate to a wire-valid status before the reply
is encoded.  The xdrgen LOCK_MSG handler stores the sentinel
unmodified in resp->status; the LOCK_RES callback then places
30001 on the v4 wire, where the client rejects the reply.

Commit 9e0d0c6194 ("lockd: Introduce nlm__int__deadlock")
established the translation boundary and updated the synchronous
v4 path nlm4svc_do_lock(), but the xdrgen LOCK_MSG handler added
later in commit b2be4e28c2 ("lockd: Use xdrgen XDR functions
for the NLMv4 LOCK_MSG procedure") missed the corresponding
remap.  Apply the same translation in __nlm4svc_proc_lock_msg()
so deadlock results are reported as nlm4_deadlock on LOCK_RES.

Fixes: b2be4e28c2 ("lockd: Use xdrgen XDR functions for the NLMv4 LOCK_MSG procedure")
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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Chuck Lever 2026-05-12 14:13:39 -04:00 • committed by Chuck Lever

parent 6d4c0dfeba

commit 2175ca7588

1 changed files with 2 additions and 0 deletions

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fs/lockd/svc4proc.c

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