Re: [PATCH v6 5/9] kernel: Implement selective syscall userspace redirection

2020-09-11 Thread peterz
On Fri, Sep 04, 2020 at 04:31:43PM -0400, Gabriel Krisman Bertazi wrote: > +struct syscall_user_dispatch { > + char __user *selector; > + unsigned long dispatcher_start; > + unsigned long dispatcher_end; > +}; > +int do_syscall_user_dispatch(struct pt_regs *regs) > +{ > + struct s

Re: [PATCH v6 5/9] kernel: Implement selective syscall userspace redirection

2020-09-05 Thread Matthew Wilcox
On Fri, Sep 04, 2020 at 04:31:43PM -0400, Gabriel Krisman Bertazi wrote: > +int set_syscall_user_dispatch(int mode, unsigned long dispatcher_start, > + unsigned long dispatcher_end, char __user > *selector) > +{ > + switch (mode) { > + case PR_SYS_DISPATCH_OFF: ..