On Mon, Oct 12, 2015 at 7:47 PM, Dominique Martinet <asmadeus@xxxxxxxxxxxxx> wrote: > Miklos Szeredi wrote on Mon, Oct 12, 2015: >> The solution depends on how 9p handles hard links. If any dentry will >> do then d_find_any_alias() will get you a dentry (any dentry) from the >> inode. >> >> Otherwise I know of no mechanism to get the backing dentry from the file. > > I've got two problems at the moment: > - first, 9P stores informations in the superblock (accessed > through either dentry->d_sb->s_fs_info or inode->i_sb->...), and > operations such as read will get passed an inode and a file (which has a > dentry), but 9P doesn't know which to trust (if I go this right - if 9P > is underlay then the inode is 9p's, if 9P is overlay then the dentry > is ?) file->f_path shouldn't be trusted by filesystems for non-directories. Ever. Solution to this particular problem? Not sure. Al? Thanks, Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
