/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define NR_CAPAHASH 32
#define CAPA_HASH_SIZE 3000 /* for MDS & OSS */
-cfs_mem_cache_t *capa_cachep = NULL;
+struct kmem_cache *capa_cachep;
#ifdef __KERNEL__
/* lock for capa hash/capa_list/fo_capa_keys */
DEFINE_SPINLOCK(capa_lock);
-cfs_list_t capa_list[CAPA_SITE_MAX];
+struct list_head capa_list[CAPA_SITE_MAX];
static struct capa_hmac_alg capa_hmac_algs[] = {
DEF_CAPA_HMAC_ALG("sha1", SHA1, 20, 20),
EXPORT_SYMBOL(capa_lock);
EXPORT_SYMBOL(capa_count);
-cfs_hlist_head_t *init_capa_hash(void)
+struct hlist_head *init_capa_hash(void)
{
- cfs_hlist_head_t *hash;
- int nr_hash, i;
+ struct hlist_head *hash;
+ int nr_hash, i;
- OBD_ALLOC(hash, CFS_PAGE_SIZE);
- if (!hash)
- return NULL;
+ OBD_ALLOC(hash, PAGE_CACHE_SIZE);
+ if (!hash)
+ return NULL;
- nr_hash = CFS_PAGE_SIZE / sizeof(cfs_hlist_head_t);
- LASSERT(nr_hash > NR_CAPAHASH);
+ nr_hash = PAGE_CACHE_SIZE / sizeof(struct hlist_head);
+ LASSERT(nr_hash > NR_CAPAHASH);
- for (i = 0; i < NR_CAPAHASH; i++)
- CFS_INIT_HLIST_HEAD(hash + i);
- return hash;
+ for (i = 0; i < NR_CAPAHASH; i++)
+ INIT_HLIST_HEAD(hash + i);
+ return hash;
}
EXPORT_SYMBOL(init_capa_hash);
static inline void capa_delete(struct obd_capa *ocapa)
{
- LASSERT(capa_on_server(ocapa));
- cfs_hlist_del_init(&ocapa->u.tgt.c_hash);
- cfs_list_del_init(&ocapa->c_list);
- capa_count[ocapa->c_site]--;
- /* release the ref when alloc */
- capa_put(ocapa);
+ LASSERT(capa_on_server(ocapa));
+ hlist_del_init(&ocapa->u.tgt.c_hash);
+ list_del_init(&ocapa->c_list);
+ capa_count[ocapa->c_site]--;
+ /* release the ref when alloc */
+ capa_put(ocapa);
}
-void cleanup_capa_hash(cfs_hlist_head_t *hash)
+void cleanup_capa_hash(struct hlist_head *hash)
{
int i;
- cfs_hlist_node_t *pos, *next;
+ struct hlist_node *pos, *next;
struct obd_capa *oc;
spin_lock(&capa_lock);
}
spin_unlock(&capa_lock);
- OBD_FREE(hash, CFS_PAGE_SIZE);
+ OBD_FREE(hash, PAGE_CACHE_SIZE);
}
EXPORT_SYMBOL(cleanup_capa_hash);
}
static struct obd_capa *find_capa(struct lustre_capa *capa,
- cfs_hlist_head_t *head, int alive)
+ struct hlist_head *head, int alive)
{
- cfs_hlist_node_t *pos;
+ struct hlist_node *pos;
struct obd_capa *ocapa;
int len = alive ? offsetof(struct lustre_capa, lc_keyid):sizeof(*capa);
}
#define LRU_CAPA_DELETE_COUNT 12
-static inline void capa_delete_lru(cfs_list_t *head)
+static inline void capa_delete_lru(struct list_head *head)
{
- struct obd_capa *ocapa;
- cfs_list_t *node = head->next;
- int count = 0;
-
- /* free LRU_CAPA_DELETE_COUNT unused capa from head */
- while (count++ < LRU_CAPA_DELETE_COUNT) {
- ocapa = cfs_list_entry(node, struct obd_capa, c_list);
- node = node->next;
- if (cfs_atomic_read(&ocapa->c_refc))
- continue;
-
- DEBUG_CAPA(D_SEC, &ocapa->c_capa, "free lru");
- capa_delete(ocapa);
- }
+ struct obd_capa *ocapa;
+ struct list_head *node = head->next;
+ int count = 0;
+
+ /* free LRU_CAPA_DELETE_COUNT unused capa from head */
+ while (count++ < LRU_CAPA_DELETE_COUNT) {
+ ocapa = list_entry(node, struct obd_capa, c_list);
+ node = node->next;
+ if (atomic_read(&ocapa->c_refc))
+ continue;
+
+ DEBUG_CAPA(D_SEC, &ocapa->c_capa, "free lru");
+ capa_delete(ocapa);
+ }
}
/* add or update */
-struct obd_capa *capa_add(cfs_hlist_head_t *hash, struct lustre_capa *capa)
+struct obd_capa *capa_add(struct hlist_head *hash, struct lustre_capa *capa)
{
- cfs_hlist_head_t *head = hash + capa_hashfn(&capa->lc_fid);
+ struct hlist_head *head = hash + capa_hashfn(&capa->lc_fid);
struct obd_capa *ocapa, *old = NULL;
- cfs_list_t *list = &capa_list[CAPA_SITE_SERVER];
+ struct list_head *list = &capa_list[CAPA_SITE_SERVER];
ocapa = alloc_capa(CAPA_SITE_SERVER);
if (IS_ERR(ocapa))
if (!old) {
ocapa->c_capa = *capa;
set_capa_expiry(ocapa);
- cfs_hlist_add_head(&ocapa->u.tgt.c_hash, head);
- cfs_list_add_tail(&ocapa->c_list, list);
+ hlist_add_head(&ocapa->u.tgt.c_hash, head);
+ list_add_tail(&ocapa->c_list, list);
capa_get(ocapa);
capa_count[CAPA_SITE_SERVER]++;
if (capa_count[CAPA_SITE_SERVER] > CAPA_HASH_SIZE)
}
EXPORT_SYMBOL(capa_add);
-struct obd_capa *capa_lookup(cfs_hlist_head_t *hash, struct lustre_capa *capa,
+struct obd_capa *capa_lookup(struct hlist_head *hash, struct lustre_capa *capa,
int alive)
{
struct obd_capa *ocapa;
spin_lock(&capa_lock);
ocapa = find_capa(capa, hash + capa_hashfn(&capa->lc_fid), alive);
if (ocapa) {
- cfs_list_move_tail(&ocapa->c_list,
- &capa_list[CAPA_SITE_SERVER]);
+ list_move_tail(&ocapa->c_list, &capa_list[CAPA_SITE_SERVER]);
capa_get(ocapa);
}
spin_unlock(&capa_lock);
int capa_hmac(__u8 *hmac, struct lustre_capa *capa, __u8 *key)
{
- struct ll_crypto_hash *tfm;
+ struct crypto_hash *tfm;
struct capa_hmac_alg *alg;
int keylen;
struct scatterlist sl;
alg = &capa_hmac_algs[capa_alg(capa)];
- tfm = ll_crypto_alloc_hash(alg->ha_name, 0, 0);
- if (!tfm) {
+ tfm = crypto_alloc_hash(alg->ha_name, 0, 0);
+ if (IS_ERR(tfm)) {
CERROR("crypto_alloc_tfm failed, check whether your kernel"
"has crypto support!\n");
- return -ENOMEM;
+ return PTR_ERR(tfm);
}
keylen = alg->ha_keylen;
+ sg_init_table(&sl, 1);
sg_set_page(&sl, virt_to_page(capa),
offsetof(struct lustre_capa, lc_hmac),
- (unsigned long)(capa) % CFS_PAGE_SIZE);
+ (unsigned long)(capa) % PAGE_CACHE_SIZE);
ll_crypto_hmac(tfm, key, &keylen, &sl, sl.length, hmac);
- ll_crypto_free_hash(tfm);
+ crypto_free_hash(tfm);
return 0;
}
int capa_encrypt_id(__u32 *d, __u32 *s, __u8 *key, int keylen)
{
- struct ll_crypto_cipher *tfm;
+ struct crypto_blkcipher *tfm;
struct scatterlist sd;
struct scatterlist ss;
struct blkcipher_desc desc;
/* passing "aes" in a variable instead of a constant string keeps gcc
* 4.3.2 happy */
- tfm = ll_crypto_alloc_blkcipher(alg, 0, 0 );
+ tfm = crypto_alloc_blkcipher(alg, 0, 0 );
if (IS_ERR(tfm)) {
CERROR("failed to load transform for aes\n");
RETURN(PTR_ERR(tfm));
GOTO(out, rc = -EINVAL);
}
- rc = ll_crypto_blkcipher_setkey(tfm, key, min);
+ rc = crypto_blkcipher_setkey(tfm, key, min);
if (rc) {
CERROR("failed to setting key for aes\n");
GOTO(out, rc);
}
- sg_set_page(&sd, virt_to_page(d), 16,
- (unsigned long)(d) % CFS_PAGE_SIZE);
+ sg_init_table(&sd, 1);
+ sg_set_page(&sd, virt_to_page(d), 16,
+ (unsigned long)(d) % PAGE_CACHE_SIZE);
- sg_set_page(&ss, virt_to_page(s), 16,
- (unsigned long)(s) % CFS_PAGE_SIZE);
+ sg_init_table(&ss, 1);
+ sg_set_page(&ss, virt_to_page(s), 16,
+ (unsigned long)(s) % PAGE_CACHE_SIZE);
desc.tfm = tfm;
desc.info = NULL;
desc.flags = 0;
- rc = ll_crypto_blkcipher_encrypt(&desc, &sd, &ss, 16);
+ rc = crypto_blkcipher_encrypt(&desc, &sd, &ss, 16);
if (rc) {
CERROR("failed to encrypt for aes\n");
GOTO(out, rc);
EXIT;
out:
- ll_crypto_free_blkcipher(tfm);
+ crypto_free_blkcipher(tfm);
return rc;
}
EXPORT_SYMBOL(capa_encrypt_id);
int capa_decrypt_id(__u32 *d, __u32 *s, __u8 *key, int keylen)
{
- struct ll_crypto_cipher *tfm;
+ struct crypto_blkcipher *tfm;
struct scatterlist sd;
struct scatterlist ss;
struct blkcipher_desc desc;
/* passing "aes" in a variable instead of a constant string keeps gcc
* 4.3.2 happy */
- tfm = ll_crypto_alloc_blkcipher(alg, 0, 0 );
+ tfm = crypto_alloc_blkcipher(alg, 0, 0 );
if (IS_ERR(tfm)) {
CERROR("failed to load transform for aes\n");
RETURN(PTR_ERR(tfm));
GOTO(out, rc = -EINVAL);
}
- rc = ll_crypto_blkcipher_setkey(tfm, key, min);
+ rc = crypto_blkcipher_setkey(tfm, key, min);
if (rc) {
CERROR("failed to setting key for aes\n");
GOTO(out, rc);
}
- sg_set_page(&sd, virt_to_page(d), 16,
- (unsigned long)(d) % CFS_PAGE_SIZE);
+ sg_init_table(&sd, 1);
+ sg_set_page(&sd, virt_to_page(d), 16,
+ (unsigned long)(d) % PAGE_CACHE_SIZE);
- sg_set_page(&ss, virt_to_page(s), 16,
- (unsigned long)(s) % CFS_PAGE_SIZE);
+ sg_init_table(&ss, 1);
+ sg_set_page(&ss, virt_to_page(s), 16,
+ (unsigned long)(s) % PAGE_CACHE_SIZE);
desc.tfm = tfm;
desc.info = NULL;
desc.flags = 0;
- rc = ll_crypto_blkcipher_decrypt(&desc, &sd, &ss, 16);
+ rc = crypto_blkcipher_decrypt(&desc, &sd, &ss, 16);
if (rc) {
CERROR("failed to decrypt for aes\n");
GOTO(out, rc);
EXIT;
out:
- ll_crypto_free_blkcipher(tfm);
+ crypto_free_blkcipher(tfm);
return rc;
}
EXPORT_SYMBOL(capa_decrypt_id);
va_end(args);
}
EXPORT_SYMBOL(_debug_capa);
+
+/*
+ * context key constructor/destructor:
+ * lu_capainfo_key_init, lu_capainfo_key_fini
+ */
+LU_KEY_INIT_FINI(lu_capainfo, struct lu_capainfo);
+
+struct lu_context_key lu_capainfo_key = {
+ .lct_tags = LCT_SERVER_SESSION,
+ .lct_init = lu_capainfo_key_init,
+ .lct_fini = lu_capainfo_key_fini
+};
+
+struct lu_capainfo *lu_capainfo_get(const struct lu_env *env)
+{
+ /* NB, in mdt_init0 */
+ if (env->le_ses == NULL)
+ return NULL;
+ return lu_context_key_get(env->le_ses, &lu_capainfo_key);
+}
+EXPORT_SYMBOL(lu_capainfo_get);
+
+/**
+ * Initialization of lu_capainfo_key data.
+ */
+int lu_capainfo_init(void)
+{
+ int rc;
+
+ LU_CONTEXT_KEY_INIT(&lu_capainfo_key);
+ rc = lu_context_key_register(&lu_capainfo_key);
+ return rc;
+}
+
+/**
+ * Dual to lu_capainfo_init().
+ */
+void lu_capainfo_fini(void)
+{
+ lu_context_key_degister(&lu_capainfo_key);
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff