| Date | Mon, 12 Mar 2018 08:32:56 +0100 | From | Ingo Molnar <> | Subject | Re: [RFC PATCH 00/35] remove in-kernel syscall invocations |
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* Dominik Brodowski <linux@dominikbrodowski.net> wrote:
> I'm a bit more unsure about these remaining patches. They use inline stubs > named ksys_xyzzy() which (mostly) call fs-internal functions. Another > alternative would be to define these in fs/*, but then we'd get more and > more indirections. > > syscalls: do not call sys_unlink() within the kernel > syscalls: do not call sys_rmdir() within the kernel > syscalls: do not call sys_mkdir{,at}() within the kernel > syscalls: do not call sys_symlink{,at}() within the kernel > syscalls: do not call sys_mknod{,at}() within the kernel > syscalls: do not call sys_link{,at}() within the kernel > syscalls: do not call sys_{f,}chmod{at,}() within the kernel > syscalls: do not call sys_{f,}access{,at}() within the kernel > syscalls: do not call sys_ftruncate() within the kernel > syscalls: do not call sys_{,l,f}chown() within the kernel > syscalls: do not call sys_close() within the kernel
> 72 files changed, 572 insertions(+), 274 deletions(-)
Just curious, have you done a before/after vmlinux /usr/bin/size comparison? How do these changes impact generated code?
My expectation would be for there to be a noticeable decrease in text size.
Thanks,
Ingo
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