diff options
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 63 |
1 files changed, 41 insertions, 22 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 9a83f149ac85..866831e7c136 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1838,6 +1838,17 @@ struct dx_hash_info */ #define HASH_NB_ALWAYS 1 +struct ext4_filename { + const struct qstr *usr_fname; + struct ext4_str disk_name; + struct dx_hash_info hinfo; +#ifdef CONFIG_EXT4_FS_ENCRYPTION + struct ext4_str crypto_buf; +#endif +}; + +#define fname_name(p) ((p)->disk_name.name) +#define fname_len(p) ((p)->disk_name.len) /* * Describe an inode's exact location on disk and in memory @@ -2098,21 +2109,16 @@ int ext4_fname_disk_to_usr(struct ext4_fname_crypto_ctx *ctx, int ext4_fname_usr_to_disk(struct ext4_fname_crypto_ctx *ctx, const struct qstr *iname, struct ext4_str *oname); -int ext4_fname_usr_to_hash(struct ext4_fname_crypto_ctx *ctx, - const struct qstr *iname, - struct dx_hash_info *hinfo); int ext4_fname_crypto_namelen_on_disk(struct ext4_fname_crypto_ctx *ctx, u32 namelen); -int ext4_fname_match(struct ext4_fname_crypto_ctx *ctx, struct ext4_str *cstr, - int len, const char * const name, - struct ext4_dir_entry_2 *de); - - #ifdef CONFIG_EXT4_FS_ENCRYPTION void ext4_put_fname_crypto_ctx(struct ext4_fname_crypto_ctx **ctx); struct ext4_fname_crypto_ctx *ext4_get_fname_crypto_ctx(struct inode *inode, u32 max_len); void ext4_fname_crypto_free_buffer(struct ext4_str *crypto_str); +int ext4_fname_setup_filename(struct inode *dir, const struct qstr *iname, + int lookup, struct ext4_filename *fname); +void ext4_fname_free_filename(struct ext4_filename *fname); #else static inline void ext4_put_fname_crypto_ctx(struct ext4_fname_crypto_ctx **ctx) { } @@ -2123,6 +2129,16 @@ struct ext4_fname_crypto_ctx *ext4_get_fname_crypto_ctx(struct inode *inode, return NULL; } static inline void ext4_fname_crypto_free_buffer(struct ext4_str *p) { } +static inline int ext4_fname_setup_filename(struct inode *dir, + const struct qstr *iname, + int lookup, struct ext4_filename *fname) +{ + fname->usr_fname = iname; + fname->disk_name.name = (unsigned char *) iname->name; + fname->disk_name.len = iname->len; + return 0; +} +static inline void ext4_fname_free_filename(struct ext4_filename *fname) { } #endif @@ -2156,14 +2172,13 @@ extern void ext4_htree_free_dir_info(struct dir_private_info *p); extern int ext4_find_dest_de(struct inode *dir, struct inode *inode, struct buffer_head *bh, void *buf, int buf_size, - const char *name, int namelen, + struct ext4_filename *fname, struct ext4_dir_entry_2 **dest_de); int ext4_insert_dentry(struct inode *dir, - struct inode *inode, - struct ext4_dir_entry_2 *de, - int buf_size, - const struct qstr *iname, - const char *name, int namelen); + struct inode *inode, + struct ext4_dir_entry_2 *de, + int buf_size, + struct ext4_filename *fname); static inline void ext4_update_dx_flag(struct inode *inode) { if (!EXT4_HAS_COMPAT_FEATURE(inode->i_sb, @@ -2317,13 +2332,14 @@ extern int ext4_orphan_add(handle_t *, struct inode *); extern int ext4_orphan_del(handle_t *, struct inode *); extern int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash, __u32 start_minor_hash, __u32 *next_hash); -extern int search_dir(struct buffer_head *bh, - char *search_buf, - int buf_size, - struct inode *dir, - const struct qstr *d_name, - unsigned int offset, - struct ext4_dir_entry_2 **res_dir); +extern int ext4_search_dir(struct buffer_head *bh, + char *search_buf, + int buf_size, + struct inode *dir, + struct ext4_filename *fname, + const struct qstr *d_name, + unsigned int offset, + struct ext4_dir_entry_2 **res_dir); extern int ext4_generic_delete_entry(handle_t *handle, struct inode *dir, struct ext4_dir_entry_2 *de_del, @@ -2768,7 +2784,9 @@ extern int ext4_da_write_inline_data_begin(struct address_space *mapping, extern int ext4_da_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len, unsigned copied, struct page *page); -extern int ext4_try_add_inline_entry(handle_t *handle, struct dentry *dentry, +extern int ext4_try_add_inline_entry(handle_t *handle, + struct ext4_filename *fname, + struct dentry *dentry, struct inode *inode); extern int ext4_try_create_inline_dir(handle_t *handle, struct inode *parent, @@ -2782,6 +2800,7 @@ extern int htree_inlinedir_to_tree(struct file *dir_file, __u32 start_hash, __u32 start_minor_hash, int *has_inline_data); extern struct buffer_head *ext4_find_inline_entry(struct inode *dir, + struct ext4_filename *fname, const struct qstr *d_name, struct ext4_dir_entry_2 **res_dir, int *has_inline_data); |