On Wed, May 22, 2024 at 07:23:15PM +0200, Andrey Albershteyn wrote: > On 2024-05-22 09:38:56, Eric Biggers wrote: > > On Wed, May 22, 2024 at 09:28:53AM -0700, Darrick J. Wong wrote: > > > > > > Do the other *at() syscalls prohibit dfd + path pointing to a different > > > filesystem? It seems odd to have this restriction that the rest don't, > > > but perhaps documenting this in the ioctl_xfs_fsgetxattrat manpage is ok. > > > > No, but they are arbitrary syscalls so they can do that. ioctls traditionally > > operate on the specific filesystem of the fd. > > > > It feels like these should be syscalls, not ioctls. > > Won't it also be a bit weird to have FS_IOC_FS[S|G]ETXATTR as > ioctls for normal files and a syscall for special files? When both > are doing the same thing > Why would the syscalls be restricted to operating on special files? - Eric
