kernel: provide ksys_*() wrappers for syscalls called by kernel/uid16.c

2018-04-02T18:15:30Z

Using these helpers allows us to avoid the in-kernel calls to these syscalls: sys_setregid(), sys_setgid(), sys_setreuid(), sys_setuid(), sys_setresuid(), sys_setresgid(), sys_setfsuid(), and sys_setfsgid(). The ksys_ prefix denotes that these function are meant as a drop-in replacement for the syscall. In particular, they use the same calling convention. This patch is part of a series which removes in-kernel calls to syscalls. On this basis, the syscall entry path can be streamlined. For details, see http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net Cc: Al Viro Cc: Eric W. Biederman Cc: Andrew Morton Signed-off-by: Dominik Brodowski

user/sven/linux.git/kernel/uid16.h, branch v5.10.32

kernel: provide ksys_*() wrappers for syscalls called by kernel/uid16.c