X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fexec.c;h=955a8eb66d7061af552121766f9b1edc241d2ca6;hb=fba2afaaec790dc5ab4ae8827972f342211bbb86;hp=2255dc72deef583ed308fffe91f7a37e9249406b;hpb=5dc8bf8132d59c03fe2562bce165c2f03f021687;p=linux-2.6-omap-h63xx.git

diff --git a/fs/exec.c b/fs/exec.c
index 2255dc72dee..955a8eb66d7 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -50,6 +50,7 @@
 #include <linux/tsacct_kern.h>
 #include <linux/cn_proc.h>
 #include <linux/audit.h>
+#include <linux/signalfd.h>
 
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
@@ -581,6 +582,13 @@ static int de_thread(struct task_struct *tsk)
 	struct task_struct *leader = NULL;
 	int count;
 
+	/*
+	 * Tell all the sighand listeners that this sighand has
+	 * been detached. The signalfd_detach() function grabs the
+	 * sighand lock, if signal listeners are present on the sighand.
+	 */
+	signalfd_detach(tsk);
+
 	/*
 	 * If we don't share sighandlers, then we aren't sharing anything
 	 * and we can just re-use it all.
@@ -757,8 +765,7 @@ no_thread_group:
 		spin_unlock(&oldsighand->siglock);
 		write_unlock_irq(&tasklist_lock);
 
-		if (atomic_dec_and_test(&oldsighand->count))
-			kmem_cache_free(sighand_cachep, oldsighand);
+		__cleanup_sighand(oldsighand);
 	}
 
 	BUG_ON(!thread_group_leader(tsk));