Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

1 files changed, 0 insertions, 7 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index efac2c58ec7..158710d2256 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -470,13 +470,6 @@ static int copy_mm(unsigned long clone_flags, struct task_struct * tsk)
 	if (clone_flags & CLONE_VM) {
 		atomic_inc(&oldmm->mm_users);
 		mm = oldmm;
-		/*
-		 * There are cases where the PTL is held to ensure no
-		 * new threads start up in user mode using an mm, which
-		 * allows optimizing out ipis; the tlb_gather_mmu code
-		 * is an example.
-		 */
-		spin_unlock_wait(&oldmm->page_table_lock);
 		goto good_mm;
 	}