Where is getname () defined

[Vulturus]

Dear kernelnewbies subscribers,

I was reading the kernel source tree in an
attempt to understand how the chroot syscall workes.
(I was using the linux-6.17-rc3 tarball from kernel.org.)

At line 1429 of the fs/open.c file, inside the
definition of the do_sys_openat2() function getname() is called.

I am having trouble finding its definition.

In particular,
$ grep -rn 'getname' fs
doesn't return a line like 'struct file *getname (args)'
or similar, as I would expect.

Can someone point me to the file/line where getname() is defined?

Thank you,
Vulturus