eCryptfs: track header bytes rather than extents

[safe/jmp/linux-2.6] / fs / ecryptfs / ecryptfs_kernel.h

diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index bb92b74..3d637e9 100644 (file)
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -237,7 +237,7 @@ struct ecryptfs_crypt_stat {
        u32 flags;
        unsigned int file_version;
        size_t iv_bytes;
-       size_t num_header_extents_at_front;
+       size_t num_header_bytes_at_front;
        size_t extent_size; /* Data extent size; default is 4096 */
        size_t key_size;
        size_t extent_shift;
@@ -322,9 +322,6 @@ struct ecryptfs_key_tfm {
        unsigned char cipher_name[ECRYPTFS_MAX_CIPHER_NAME_SIZE + 1];
 };
 
-extern struct list_head key_tfm_list;
-extern struct mutex key_tfm_list_mutex;
-
 /**
  * This struct is to enable a mount-wide passphrase/salt combo. This
  * is more or less a stopgap to provide similar functionality to other
@@ -521,11 +518,9 @@ extern struct kmem_cache *ecryptfs_file_info_cache;
 extern struct kmem_cache *ecryptfs_dentry_info_cache;
 extern struct kmem_cache *ecryptfs_inode_info_cache;
 extern struct kmem_cache *ecryptfs_sb_info_cache;
-extern struct kmem_cache *ecryptfs_header_cache_0;
 extern struct kmem_cache *ecryptfs_header_cache_1;
 extern struct kmem_cache *ecryptfs_header_cache_2;
 extern struct kmem_cache *ecryptfs_xattr_cache;
-extern struct kmem_cache *ecryptfs_lower_page_cache;
 extern struct kmem_cache *ecryptfs_key_record_cache;
 extern struct kmem_cache *ecryptfs_key_sig_cache;
 extern struct kmem_cache *ecryptfs_global_auth_tok_cache;
@@ -576,8 +571,6 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length);
 int ecryptfs_inode_test(struct inode *inode, void *candidate_lower_inode);
 int ecryptfs_inode_set(struct inode *inode, void *lower_inode);
 void ecryptfs_init_inode(struct inode *inode, struct inode *lower_inode);
-ssize_t ecryptfs_getxattr(struct dentry *dentry, const char *name, void *value,
-                         size_t size);
 ssize_t
 ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name,
                        void *value, size_t size);
@@ -631,8 +624,6 @@ int ecryptfs_keyring_auth_tok_for_sig(struct key **auth_tok_key,
                                      char *sig);
 int ecryptfs_write_zeros(struct file *file, pgoff_t index, int start,
                         int num_zeros);
-void ecryptfs_lower_offset_for_extent(loff_t *offset, loff_t extent_num,
-                                     struct ecryptfs_crypt_stat *crypt_stat);
 int ecryptfs_write_lower(struct inode *ecryptfs_inode, char *data,
                         loff_t offset, size_t size);
 int ecryptfs_write_lower_page_segment(struct inode *ecryptfs_inode,
@@ -646,8 +637,6 @@ int ecryptfs_read_lower_page_segment(struct page *page_for_ecryptfs,
                                     pgoff_t page_index,
                                     size_t offset_in_page, size_t size,
                                     struct inode *ecryptfs_inode);
-int ecryptfs_read(char *data, loff_t offset, size_t size,
-                 struct file *ecryptfs_file);
-struct page *ecryptfs_get1page(struct file *file, loff_t index);
+struct page *ecryptfs_get_locked_page(struct file *file, loff_t index);
 
 #endif /* #ifndef ECRYPTFS_KERNEL_H */