https://bugzilla.kernel.org/show_bug.cgi?id=205885
Erhard F. (erhar...@mailbox.org) changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #286345|0 |1 is obsolete| | --- Comment #6 from Erhard F. (erhar...@mailbox.org) --- Created attachment 286347 --> https://bugzilla.kernel.org/attachment.cgi?id=286347&action=edit bisect.log # git bisect bad | tee -a ~/bisect01.log cccaa5e33525fc07f4a2ce0518e50b9ddf435e47 is the first bad commit commit cccaa5e33525fc07f4a2ce0518e50b9ddf435e47 Author: Dominik Brodowski <li...@dominikbrodowski.net> Date: Tue Oct 23 22:41:09 2018 +0200 init: use do_mount() instead of ksys_mount() In prepare_namespace(), do_mount() can be used instead of ksys_mount() as the first and third argument are const strings in the kernel, the second and fourth argument are passed through anyway, and the fifth argument is NULL. In do_mount_root(), ksys_mount() is called with the first and third argument being already kernelspace strings, which do not need to be copied over from userspace to kernelspace (again). The second and fourth arguments are passed through to do_mount() anyway. The fifth argument, while already residing in kernelspace, needs to be put into a page of its own. Then, do_mount() can be used instead of ksys_mount(). Once this is done, there are no in-kernel users to ksys_mount() left, which can therefore be removed. Signed-off-by: Dominik Brodowski <li...@dominikbrodowski.net> fs/namespace.c | 10 ++-------- include/linux/syscalls.h | 2 -- init/do_mounts.c | 28 ++++++++++++++++++++++------ 3 files changed, 24 insertions(+), 16 deletions(-) -- You are receiving this mail because: You are watching the assignee of the bug.