On Wed, Sep 25, 2024 at 4:30 PM Xi Ruoyao <xry111@xxxxxxxxxxx> wrote: > There's a special case, AT_FDCWD + NULL + AT_EMPTY_PATH, still resulting > EFAULT, while AT_FDCWD + "" + AT_EMPTY_PATH is OK (returning the stat of > current directory). > > I know allowing NULL with AT_FDCWD won't produce any performance gain, > but it seems the difference would make the document of the API more > nasty. > > So is it acceptable to make the kernel "hide" this difference, i.e. > accept AT_FDCWD + NULL + AT_EMPTY_PATH as-is AT_FDCWD + "" + > AT_EMPTY_PATH? > huh, that indeed makes sense to add. kind of weird this was not sorted out at the time, but i'm not going to pointer a finger at myself :) so ACK from me as far as the idea goes I presume you can do the honors? :) -- Mateusz Guzik <mjguzik gmail.com>
