'a last accessed time' (i_atime) of file F

HI,

when a Linux process P accesses a file F. A ‘struct file’ structure represents file F as an opened file, which is opened by process P.
Could you please let me know that if I want to know ‘a last accessed time’ (i_atime) of file F, my question is that the last accessed time of file F will be in:

1-struct path f_path; or

2-struct inode *f_inode;

I have some reasons to write a program to get the last accessed time of file F.

Best,

Winai