| From | Palmer Dabbelt <> | Subject | [PATCH 02/13] Use sys_ni.c instead of #ifdef to disable fork on CONFIG_NOMMU | Date | Mon, 14 Sep 2015 15:50:36 -0700 |
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I think this change actually doesn't do anything: __NR_fork was still being defined either way, and on my machine fork() in <unistd.h> comes from libc.
This just moves to the standard mechanism for defining syscalls that aren't implemented instead, which has the side-effect of no longer having an #ifdef CONFIG_* in a user-visible header.
Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com> Reviewed-by: Andrew Waterman <waterman@eecs.berkeley.edu> Reviewed-by: Albert Ou <aou@eecs.berkeley.edu> --- include/uapi/asm-generic/unistd.h | 4 ---- kernel/sys_ni.c | 1 + 2 files changed, 1 insertion(+), 4 deletions(-)
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 8da542a2874d..21689284360b 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -867,11 +867,7 @@ __SYSCALL(__NR_uselib, sys_uselib) __SYSCALL(__NR__sysctl, sys_sysctl) #define __NR_fork 1079 -#ifdef CONFIG_MMU __SYSCALL(__NR_fork, sys_fork) -#else -__SYSCALL(__NR_fork, sys_ni_syscall) -#endif /* CONFIG_MMU */ #undef __NR_syscalls #define __NR_syscalls (__NR_fork+1) diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index a02decf15583..c830f7f9e36d 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -174,6 +174,7 @@ cond_syscall(sys_setfsuid); cond_syscall(sys_setfsgid); cond_syscall(sys_capget); cond_syscall(sys_capset); +cond_syscall(sys_fork); /* arch-specific weak syscall entries */ cond_syscall(sys_pciconfig_read); -- 2.4.6
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