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authorRoland McGrath <roland@gnu.org>1995-05-26 16:59:33 +0000
committerRoland McGrath <roland@gnu.org>1995-05-26 16:59:33 +0000
commit074d099ee3d24bff029fc2d1b7162eb9000fbd68 (patch)
treef8d2b9d31f247b10c97872f48c79479e99e02144 /sysdeps/mach/hurd/sigaction.c
parentcc2f1c49e9e6ce51e60c9462097914773311a161 (diff)
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Only notify the proc server for SIGCHLD when the SA_NOCLDSTOP bit actually changes.
Diffstat (limited to 'sysdeps/mach/hurd/sigaction.c')
-rw-r--r--sysdeps/mach/hurd/sigaction.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/mach/hurd/sigaction.c b/sysdeps/mach/hurd/sigaction.c
index 91de02cd17..957068b168 100644
--- a/sysdeps/mach/hurd/sigaction.c
+++ b/sysdeps/mach/hurd/sigaction.c
@@ -52,7 +52,8 @@ DEFUN(__sigaction, (sig, act, oact),
   if (act != NULL)
     ss->actions[sig] = a;
 
-  if (act != NULL && sig == SIGCHLD)
+  if (act != NULL && sig == SIGCHLD &&
+      (a.sa_flags & SA_NOCLDSTOP) != (old.sa_flags & SA_NOCLDSTOP))
     {
       ss->critical_section = 1;
       __spin_unlock (&ss->lock);