From a74fb73c12398b250fdc5e333a11e15a9e3a84fc Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 10 Oct 2012 21:28:25 -0400 Subject: infrastructure for saner ret_from_kernel_thread semantics * allow kernel_execve() leave the actual return to userland to caller (selected by CONFIG_GENERIC_KERNEL_EXECVE). Callers updated accordingly. * architecture that does select GENERIC_KERNEL_EXECVE in its Kconfig should have its ret_from_kernel_thread() do this: call schedule_tail call the callback left for it by copy_thread(); if it ever returns, that's because it has just done successful kernel_execve() jump to return from syscall IOW, its only difference from ret_from_fork() is that it does call the callback. * such an architecture should also get rid of ret_from_kernel_execve() and __ARCH_WANT_KERNEL_EXECVE This is the last part of infrastructure patches in that area - from that point on work on different architectures can live independently. Signed-off-by: Al Viro --- arch/Kconfig | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/Kconfig') diff --git a/arch/Kconfig b/arch/Kconfig index d397e11d167d..d27efb9bfafd 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -261,6 +261,9 @@ config ARCH_WANT_OLD_COMPAT_IPC config GENERIC_KERNEL_THREAD bool +config GENERIC_KERNEL_EXECVE + bool + config HAVE_ARCH_SECCOMP_FILTER bool help -- cgit v1.2.3