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authorStanislav Kinsbursky <skinsbursky@parallels.com>2012-04-11 17:32:58 +0400
committerJ. Bruce Fields <bfields@redhat.com>2012-04-12 09:12:10 -0400
commit9e75a4dee08e8fe21f349e11c43955c34523bced (patch)
treef256b13c433c642d639eba419da134059c3d56a4 /fs/nfsd/nfs4idmap.c
parentc2e76ef5e0716bc82364e6049e8023ffd5bbe395 (diff)
downloadlinux-9e75a4dee08e8fe21f349e11c43955c34523bced.tar.bz2
nfsd: make name-to-id cache allocated per network namespace context
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4idmap.c')
-rw-r--r--fs/nfsd/nfs4idmap.c24
1 files changed, 15 insertions, 9 deletions
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index b285a693af8c..286a7f8f2024 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -301,8 +301,6 @@ idtoname_update(struct cache_detail *cd, struct ent *new, struct ent *old)
* Name -> ID cache
*/
-static struct cache_head *nametoid_table[ENT_HASHMAX];
-
static inline int
nametoid_hash(struct ent *ent)
{
@@ -362,10 +360,9 @@ static struct ent *nametoid_update(struct cache_detail *, struct ent *,
struct ent *);
static int nametoid_parse(struct cache_detail *, char *, int);
-static struct cache_detail nametoid_cache = {
+static struct cache_detail nametoid_cache_template = {
.owner = THIS_MODULE,
.hash_size = ENT_HASHMAX,
- .hash_table = nametoid_table,
.name = "nfs4.nametoid",
.cache_put = ent_put,
.cache_upcall = nametoid_upcall,
@@ -479,11 +476,18 @@ nfsd_idmap_init(struct net *net)
rv = cache_register_net(nn->idtoname_cache, net);
if (rv)
goto destroy_idtoname_cache;
- rv = cache_register_net(&nametoid_cache, net);
- if (rv)
+ nn->nametoid_cache = cache_create_net(&nametoid_cache_template, net);
+ if (IS_ERR(nn->nametoid_cache)) {
+ rv = PTR_ERR(nn->idtoname_cache);
goto unregister_idtoname_cache;
+ }
+ rv = cache_register_net(nn->nametoid_cache, net);
+ if (rv)
+ goto destroy_nametoid_cache;
return 0;
+destroy_nametoid_cache:
+ cache_destroy_net(nn->nametoid_cache, net);
unregister_idtoname_cache:
cache_unregister_net(nn->idtoname_cache, net);
destroy_idtoname_cache:
@@ -497,8 +501,9 @@ nfsd_idmap_shutdown(struct net *net)
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
cache_unregister_net(nn->idtoname_cache, net);
- cache_unregister_net(&nametoid_cache, net);
+ cache_unregister_net(nn->nametoid_cache, net);
cache_destroy_net(nn->idtoname_cache, net);
+ cache_destroy_net(nn->nametoid_cache, net);
}
static int
@@ -541,19 +546,20 @@ idmap_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen
.type = type,
};
int ret;
+ struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id);
if (namelen + 1 > sizeof(key.name))
return nfserr_badowner;
memcpy(key.name, name, namelen);
key.name[namelen] = '\0';
strlcpy(key.authname, rqst_authname(rqstp), sizeof(key.authname));
- ret = idmap_lookup(rqstp, nametoid_lookup, &key, &nametoid_cache, &item);
+ ret = idmap_lookup(rqstp, nametoid_lookup, &key, nn->nametoid_cache, &item);
if (ret == -ENOENT)
return nfserr_badowner;
if (ret)
return nfserrno(ret);
*id = item->id;
- cache_put(&item->h, &nametoid_cache);
+ cache_put(&item->h, nn->nametoid_cache);
return 0;
}