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authorJ. Bruce Fields <bfields@redhat.com>2010-11-24 17:17:34 -0500
committerJ. Bruce Fields <bfields@redhat.com>2010-12-17 15:47:41 -0500
commit6e5f15c93dc745d46c2bb9e4597b44463203844b (patch)
tree9190dba16b3c1a6368c30811f65636a38cf9bfaa /fs/nfsd/nfs4state.c
parentec66ee3797e5848356cf593c6ec7aabf30a00cf1 (diff)
nfsd4: replace unintuitive match_clientid_establishment
Reviewed-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
-rw-r--r--fs/nfsd/nfs4state.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 4d542cfd6960..0c61cc1eadca 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1135,19 +1135,13 @@ find_unconfirmed_client(clientid_t *clid)
1135} 1135}
1136 1136
1137/* 1137/*
1138 * Return 1 iff clp's clientid establishment method matches the use_exchange_id
1139 * parameter. Matching is based on the fact the at least one of the
1140 * EXCHGID4_FLAG_USE_{NON_PNFS,PNFS_MDS,PNFS_DS} flags must be set for v4.1
1141 *
1142 * FIXME: we need to unify the clientid namespaces for nfsv4.x 1138 * FIXME: we need to unify the clientid namespaces for nfsv4.x
1143 * and correctly deal with client upgrade/downgrade in EXCHANGE_ID 1139 * and correctly deal with client upgrade/downgrade in EXCHANGE_ID
1144 * and SET_CLIENTID{,_CONFIRM} 1140 * and SET_CLIENTID{,_CONFIRM}
1145 */ 1141 */
1146static inline int 1142static bool clp_used_exchangeid(struct nfs4_client *clp)
1147match_clientid_establishment(struct nfs4_client *clp, bool use_exchange_id)
1148{ 1143{
1149 bool has_exchange_flags = (clp->cl_exchange_flags != 0); 1144 return clp->cl_exchange_flags != 0;
1150 return use_exchange_id == has_exchange_flags;
1151} 1145}
1152 1146
1153static struct nfs4_client * 1147static struct nfs4_client *
@@ -1158,7 +1152,7 @@ find_confirmed_client_by_str(const char *dname, unsigned int hashval,
1158 1152
1159 list_for_each_entry(clp, &conf_str_hashtbl[hashval], cl_strhash) { 1153 list_for_each_entry(clp, &conf_str_hashtbl[hashval], cl_strhash) {
1160 if (same_name(clp->cl_recdir, dname) && 1154 if (same_name(clp->cl_recdir, dname) &&
1161 match_clientid_establishment(clp, use_exchange_id)) 1155 clp_used_exchangeid(clp) == use_exchange_id)
1162 return clp; 1156 return clp;
1163 } 1157 }
1164 return NULL; 1158 return NULL;
@@ -1172,7 +1166,7 @@ find_unconfirmed_client_by_str(const char *dname, unsigned int hashval,
1172 1166
1173 list_for_each_entry(clp, &unconf_str_hashtbl[hashval], cl_strhash) { 1167 list_for_each_entry(clp, &unconf_str_hashtbl[hashval], cl_strhash) {
1174 if (same_name(clp->cl_recdir, dname) && 1168 if (same_name(clp->cl_recdir, dname) &&
1175 match_clientid_establishment(clp, use_exchange_id)) 1169 clp_used_exchangeid(clp) == use_exchange_id)
1176 return clp; 1170 return clp;
1177 } 1171 }
1178 return NULL; 1172 return NULL;