Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> --- fs/nfsd/nfs4state.c | 29 +++++++++++++++++++++++++---- 1 file changed, 25 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 57f24e3e46a0..06a95f25c522 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -6539,8 +6539,19 @@ void nfs4_put_cpntf_state(struct nfsd_net *nn, struct nfs4_cpntf_state *cps) spin_unlock(&nn->s2s_cp_lock); } -/* - * Checks for stateid operations +/** + * nfs4_preprocess_stateid_op - find and prep stateid for an operation + * @rqstp: incoming request from client + * @cstate: current compound state + * @fhp: filehandle associated with requested stateid + * @stateid: stateid (provided by client) + * @flags: flags describing type of operation to be done + * @nfp: optional nfsd_file return pointer (may be NULL) + * @cstid: optional returned nfs4_stid pointer (may be NULL) + * + * Given info from the client, look up a nfs4_stid for the operation. On + * success, it returns a reference to the nfs4_stid and/or the nfsd_file + * associated with it. */ __be32 nfs4_preprocess_stateid_op(struct svc_rqst *rqstp, @@ -6729,8 +6740,18 @@ static __be32 nfs4_seqid_op_checks(struct nfsd4_compound_state *cstate, stateid_ return status; } -/* - * Checks for sequence id mutating operations. +/** + * nfs4_preprocess_seqid_op - find and prep an ol_stateid for a seqid-morphing op + * @cstate: compund state + * @seqid: seqid (provided by client) + * @stateid: stateid (provided by client) + * @typemask: mask of allowable types for this operation + * @stpp: return pointer for the stateid found + * @nn: net namespace for request + * + * Given a stateid+seqid from a client, look up an nfs4_ol_stateid and + * return it in @stpp. On a nfs_ok return, the returned stateid will + * have its st_mutex locked. */ static __be32 nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid, -- 2.39.0
