+ simplify-copy_mm.patch added to -mm tree

+ simplify-copy_mm.patch added to -mm tree

[akpm]

The patch titled
     Subject: kernel/fork.c: simplify copy_mm()
has been added to the -mm tree.  Its filename is
     simplify-copy_mm.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/simplify-copy_mm.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/simplify-copy_mm.patch

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------------------------------------------------------
From: Rolf Eike Beer <eb@emlix.com>
Subject: kernel/fork.c: simplify copy_mm()

All this can happen without a single goto.

Link: https://lkml.kernel.org/r/2072685.XptgVkyDqn@devpool47
Signed-off-by: Rolf Eike Beer <eb@emlix.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/fork.c |   15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

--- a/kernel/fork.c~simplify-copy_mm
+++ a/kernel/fork.c
@@ -1393,7 +1393,6 @@ fail_nomem:
 static int copy_mm(unsigned long clone_flags, struct task_struct *tsk)
 {
 	struct mm_struct *mm, *oldmm;
-	int retval;
 
 	tsk->min_flt = tsk->maj_flt = 0;
 	tsk->nvcsw = tsk->nivcsw = 0;
@@ -1420,21 +1419,15 @@ static int copy_mm(unsigned long clone_f
 	if (clone_flags & CLONE_VM) {
 		mmget(oldmm);
 		mm = oldmm;
-		goto good_mm;
+	} else {
+		mm = dup_mm(tsk, current->mm);
+		if (!mm)
+			return -ENOMEM;
 	}
 
-	retval = -ENOMEM;
-	mm = dup_mm(tsk, current->mm);
-	if (!mm)
-		goto fail_nomem;
-
-good_mm:
 	tsk->mm = mm;
 	tsk->active_mm = mm;
 	return 0;
-
-fail_nomem:
-	return retval;
 }
 
 static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
_

Patches currently in -mm which might be from eb@emlix.com are

simplify-copy_mm.patch