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| author | Stanislav Kinsbursky <skinsbursky@parallels.com> | 2012-04-11 15:32:58 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2012-04-12 15:12:10 +0200 |
| commit | 9e75a4dee08e8fe21f349e11c43955c34523bced (patch) | |
| tree | f256b13c433c642d639eba419da134059c3d56a4 | |
| parent | nfsd: make id-to-name cache allocated per network namespace context (diff) | |
| download | linux-9e75a4dee08e8fe21f349e11c43955c34523bced.tar.xz linux-9e75a4dee08e8fe21f349e11c43955c34523bced.zip | |
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>
| -rw-r--r-- | fs/nfsd/netns.h | 2 | ||||
| -rw-r--r-- | fs/nfsd/nfs4idmap.c | 24 |
2 files changed, 16 insertions, 10 deletions
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 948a718e24a4..39365636b244 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -33,7 +33,7 @@ struct nfsd_net { struct cache_detail *svc_export_cache; struct cache_detail *idtoname_cache; - + struct cache_detail *nametoid_cache; }; extern int nfsd_net_id; 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; } |