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replay_one_buffer first reads buffers and dispatches items accroding to the item type. In this patch, add_inode_ref handles inode_ref and inode_extref. Then add_inode_ref calls ref_get_fields and extref_get_fields to read ref/extref name for the first time. So checking name_len before reading those two is fine. add_inode_ref also calls inode_in_dir to match ref/extref in parent_dir. The call graph includes btrfs_match_dir_item_name to read dir_item name in the parent dir. Checking first dir_item is not enough. Change it to verify every dir_item while doing matches. Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.