[SPARC]: avoid CHILD_MAX and OPEN_MAX constants

I don't figure anyone really cares about SunOS syscall emulation, and I
certainly don't.  But I'm getting rid of uses of the OPEN_MAX and CHILD_MAX
compile-time constant, and these are almost the only ones.  OPEN_MAX is a
bogus constant with no meaning about anything.  The RLIMIT_NOFILE resource
limit is what sysconf (_SC_OPEN_MAX) actually wants to return.

The CHILD_MAX cases weren't actually using anything I want to get rid of,
but I noticed that they are there and are wrong too.  The CHILD_MAX value
is not really unlimited as a -1 return from sysconf indicates.  The
RLIMIT_NPROC resource limit is what sysconf (_SC_CHILD_MAX) wants to return.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/sparc/kernel/sys_sunos.c b/arch/sparc/kernel/sys_sunos.c
index da6606f0cffc..f807172cab0e 100644
--- a/arch/sparc/kernel/sys_sunos.c
+++ b/arch/sparc/kernel/sys_sunos.c
@@ -910,7 +910,7 @@ asmlinkage long sunos_sysconf (int name)
                 ret = ARG_MAX;
                 break;
         case _SC_CHILD_MAX:
-                ret = -1; /* no limit */
+                ret = current->signal->rlim[RLIMIT_NPROC].rlim_cur;
                 break;
         case _SC_CLK_TCK:
                 ret = HZ;
@@ -919,7 +919,7 @@ asmlinkage long sunos_sysconf (int name)
                 ret = NGROUPS_MAX;
                 break;
         case _SC_OPEN_MAX:
-                ret = OPEN_MAX;
+                ret = current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
                 break;
         case _SC_JOB_CONTROL:
                 ret = 1;        /* yes, we do support job control */