From 858cc57336dd98ca54dff417b55a86aa101f5fb0 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 29 Jul 2014 21:34:16 -0400 Subject: [PATCH] nfsd: nfsd4_locku() must reference the lock stateid Ensure that nfsd4_locku() keeps a reference to the lock stateid until it is done working with it. Necessary step toward client_mutex removal. Signed-off-by: Trond Myklebust Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 1ddf4da0023d..4f191456d737 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -5147,10 +5147,12 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, &stp, nn); if (status) goto out; + /* FIXME: move into nfs4_preprocess_seqid_op */ + atomic_inc(&stp->st_stid.sc_count); filp = find_any_file(stp->st_stid.sc_file); if (!filp) { status = nfserr_lock_range; - goto out; + goto put_stateid; } file_lock = locks_alloc_lock(); if (!file_lock) { @@ -5180,6 +5182,8 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, memcpy(&locku->lu_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t)); fput: fput(filp); +put_stateid: + nfs4_put_stid(&stp->st_stid); out: nfsd4_bump_seqid(cstate, status); if (!cstate->replay_owner) -- 2.39.2