diff options
| -rw-r--r-- | fs/ubifs/dir.c | 57 |
1 files changed, 16 insertions, 41 deletions
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c index 605af512aec..6b4947f75af 100644 --- a/fs/ubifs/dir.c +++ b/fs/ubifs/dir.c @@ -346,19 +346,18 @@ static unsigned int vfs_dent_type(uint8_t type) * This means that UBIFS cannot support NFS which requires full * 'seekdir()'/'telldir()' support. */ -static int ubifs_readdir(struct file *file, void *dirent, filldir_t filldir) +static int ubifs_readdir(struct file *file, struct dir_context *ctx) { - int err, over = 0; - loff_t pos = file->f_pos; + int err; struct qstr nm; union ubifs_key key; struct ubifs_dent_node *dent; struct inode *dir = file_inode(file); struct ubifs_info *c = dir->i_sb->s_fs_info; - dbg_gen("dir ino %lu, f_pos %#llx", dir->i_ino, pos); + dbg_gen("dir ino %lu, f_pos %#llx", dir->i_ino, ctx->pos); - if (pos > UBIFS_S_KEY_HASH_MASK || pos == 2) + if (ctx->pos > UBIFS_S_KEY_HASH_MASK || ctx->pos == 2) /* * The directory was seek'ed to a senseless position or there * are no more entries. @@ -384,19 +383,9 @@ static int ubifs_readdir(struct file *file, void *dirent, filldir_t filldir) file->f_version = 1; /* File positions 0 and 1 correspond to "." and ".." */ - if (pos == 0) { - ubifs_assert(!file->private_data); - over = filldir(dirent, ".", 1, 0, dir->i_ino, DT_DIR); - if (over) - return 0; - file->f_pos = pos = 1; - } - - if (pos == 1) { + if (ctx->pos < 2) { ubifs_assert(!file->private_data); - over = filldir(dirent, "..", 2, 1, - parent_ino(file->f_path.dentry), DT_DIR); - if (over) + if (!dir_emit_dots(file, ctx)) return 0; /* Find the first entry in TNC and save it */ @@ -408,7 +397,7 @@ static int ubifs_readdir(struct file *file, void *dirent, filldir_t filldir) goto out; } - file->f_pos = pos = key_hash_flash(c, &dent->key); + ctx->pos = key_hash_flash(c, &dent->key); file->private_data = dent; } @@ -416,16 +405,16 @@ static int ubifs_readdir(struct file *file, void *dirent, filldir_t filldir) if (!dent) { /* * The directory was seek'ed to and is now readdir'ed. - * Find the entry corresponding to @pos or the closest one. + * Find the entry corresponding to @ctx->pos or the closest one. */ - dent_key_init_hash(c, &key, dir->i_ino, pos); + dent_key_init_hash(c, &key, dir->i_ino, ctx->pos); nm.name = NULL; dent = ubifs_tnc_next_ent(c, &key, &nm); if (IS_ERR(dent)) { err = PTR_ERR(dent); goto out; } - file->f_pos = pos = key_hash_flash(c, &dent->key); + ctx->pos = key_hash_flash(c, &dent->key); file->private_data = dent; } @@ -437,10 +426,9 @@ static int ubifs_readdir(struct file *file, void *dirent, filldir_t filldir) ubifs_inode(dir)->creat_sqnum); nm.len = le16_to_cpu(dent->nlen); - over = filldir(dirent, dent->name, nm.len, pos, + if (!dir_emit(ctx, dent->name, nm.len, le64_to_cpu(dent->inum), - vfs_dent_type(dent->type)); - if (over) + vfs_dent_type(dent->type))) return 0; /* Switch to the next entry */ @@ -453,17 +441,9 @@ static int ubifs_readdir(struct file *file, void *dirent, filldir_t filldir) } kfree(file->private_data); - file->f_pos = pos = key_hash_flash(c, &dent->key); + ctx->pos = key_hash_flash(c, &dent->key); file->private_data = dent; cond_resched(); - - if (file->f_version == 0) - /* - * The file was seek'ed meanwhile, lets return and start - * reading direntries from the new position on the next - * invocation. - */ - return 0; } out: @@ -475,15 +455,10 @@ out: kfree(file->private_data); file->private_data = NULL; /* 2 is a special value indicating that there are no more direntries */ - file->f_pos = 2; + ctx->pos = 2; return 0; } -static loff_t ubifs_dir_llseek(struct file *file, loff_t offset, int whence) -{ - return generic_file_llseek(file, offset, whence); -} - /* Free saved readdir() state when the directory is closed */ static int ubifs_dir_release(struct inode *dir, struct file *file) { @@ -1201,10 +1176,10 @@ const struct inode_operations ubifs_dir_inode_operations = { }; const struct file_operations ubifs_dir_operations = { - .llseek = ubifs_dir_llseek, + .llseek = generic_file_llseek, .release = ubifs_dir_release, .read = generic_read_dir, - .readdir = ubifs_readdir, + .iterate = ubifs_readdir, .fsync = ubifs_fsync, .unlocked_ioctl = ubifs_ioctl, #ifdef CONFIG_COMPAT |