eCryptfs: removed num_global_auth_toks from ecryptfs_mount_crypt_stat

This patch removes the 'num_global_auth_toks' field of the
ecryptfs_mount_crypt_stat structure, used to count the number of items in
the 'global_auth_tok_list' list. This variable is not needed because there
are no checks based upon it.

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>

3 files changed, 0 insertions, 3 deletions

diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 98a2a314ea68..d2a70a4561f9 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -266,7 +266,6 @@ void ecryptfs_destroy_mount_crypt_stat(
                                  &mount_crypt_stat->global_auth_tok_list,
                                  mount_crypt_stat_list) {
                 list_del(&auth_tok->mount_crypt_stat_list);
-                mount_crypt_stat->num_global_auth_toks--;
                 if (auth_tok->global_auth_tok_key
                     && !(auth_tok->flags & ECRYPTFS_AUTH_TOK_INVALID))
                         key_put(auth_tok->global_auth_tok_key);
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 3ef5b0030231..6c6b8261092e 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -378,7 +378,6 @@ struct ecryptfs_mount_crypt_stat {
         u32 flags;
         struct list_head global_auth_tok_list;
         struct mutex global_auth_tok_list_mutex;
-        size_t num_global_auth_toks;
         size_t global_default_cipher_key_size;
         size_t global_default_fn_cipher_key_bytes;
         unsigned char global_default_cipher_name[ECRYPTFS_MAX_CIPHER_NAME_SIZE
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 4feb78c23651..523e51dec66e 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -2454,7 +2454,6 @@ ecryptfs_add_global_auth_tok(struct ecryptfs_mount_crypt_stat *mount_crypt_stat,
         mutex_lock(&mount_crypt_stat->global_auth_tok_list_mutex);
         list_add(&new_auth_tok->mount_crypt_stat_list,
                  &mount_crypt_stat->global_auth_tok_list);
-        mount_crypt_stat->num_global_auth_toks++;
         mutex_unlock(&mount_crypt_stat->global_auth_tok_list_mutex);
 out:
         return rc;