Messages in this thread | | | Date | Fri, 18 Sep 2020 15:44:06 +0200 | From | Christoph Hellwig <> | Subject | Re: [PATCH 1/9] kernel: add a PF_FORCE_COMPAT flag |
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On Fri, Sep 18, 2020 at 02:40:12PM +0100, Al Viro wrote: > > /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */ > > - return pt_regs_trap_type(current_pt_regs()) == 0x110; > > + return pt_regs_trap_type(current_pt_regs()) == 0x110 || > > + (current->flags & PF_FORCE_COMPAT); > > Can't say I like that approach ;-/ Reasoning about the behaviour is much > harder when it's controlled like that - witness set_fs() shite...
I don't particularly like it either. But do you have a better idea how to deal with io_uring vs compat tasks?
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