static int affs_hash_dentry(const struct dentry *dentry, struct qstr *qstr) { return __affs_hash_dentry(qstr, affs_toupper, affs_nofilenametruncate(dentry)); }
static int affs_intl_compare_dentry(const struct dentry *parent, const struct dentry *dentry, unsigned int len, const char *str, const struct qstr *name) { return __affs_compare_dentry(len, str, name, affs_intl_toupper, affs_nofilenametruncate(parent)); }
int affs_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { struct super_block *sb = old_dir->i_sb; struct buffer_head *bh = NULL; int retval; pr_debug("%s(old=%lu,\"%pd\" to new=%lu,\"%pd\")\n", __func__, old_dir->i_ino, old_dentry, new_dir->i_ino, new_dentry); retval = affs_check_name(new_dentry->d_name.name, new_dentry->d_name.len, affs_nofilenametruncate(old_dentry)); if (retval) return retval; /* Unlink destination if it already exists */ if (new_dentry->d_inode) { retval = affs_remove_header(new_dentry); if (retval) return retval; } bh = affs_bread(sb, old_dentry->d_inode->i_ino); if (!bh) return -EIO; /* Remove header from its parent directory. */ affs_lock_dir(old_dir); retval = affs_remove_hash(old_dir, bh); affs_unlock_dir(old_dir); if (retval) goto done; /* And insert it into the new directory with the new name. */ affs_copy_name(AFFS_TAIL(sb, bh)->name, new_dentry); affs_fix_checksum(sb, bh); affs_lock_dir(new_dir); retval = affs_insert_hash(new_dir, bh); affs_unlock_dir(new_dir); /* TODO: move it back to old_dir, if error? */ done: mark_buffer_dirty_inode(bh, retval ? old_dir : new_dir); affs_brelse(bh); return retval; }