Subject: + kernel-forkc-remove-redundant-null-check-in-dup_mm.patch added to -mm tree
To: daeseok.youn@xxxxxxxxx,oleg@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 02 Dec 2013 14:08:20 -0800
The patch titled
Subject: kernel/fork.c: remove redundant NULL check in dup_mm()
has been added to the -mm tree. Its filename is
kernel-forkc-remove-redundant-null-check-in-dup_mm.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kernel-forkc-remove-redundant-null-check-in-dup_mm.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kernel-forkc-remove-redundant-null-check-in-dup_mm.patch
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From: Daeseok Youn <daeseok.youn@xxxxxxxxx>
Subject: kernel/fork.c: remove redundant NULL check in dup_mm()
current->mm doesn't need a NULL check in dup_mm(). Becasue dup_mm() is
used only in copy_mm() and current->mm is checked whether it is NULL or
not in copy_mm() before calling dup_mm().
Signed-off-by: Daeseok Youn <daeseok.youn@xxxxxxxxx>
Acked-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/fork.c | 3 ---
1 file changed, 3 deletions(-)
diff -puN kernel/fork.c~kernel-forkc-remove-redundant-null-check-in-dup_mm kernel/fork.c
--- a/kernel/fork.c~kernel-forkc-remove-redundant-null-check-in-dup_mm
+++ a/kernel/fork.c
@@ -804,9 +804,6 @@ static struct mm_struct *dup_mm(struct t
struct mm_struct *mm, *oldmm = current->mm;
int err;
- if (!oldmm)
- return NULL;
-
mm = allocate_mm();
if (!mm)
goto fail_nomem;
_
Patches currently in -mm which might be from daeseok.youn@xxxxxxxxx are
kernel-forkc-make-dup_mm-static.patch
kernel-forkc-fix-coding-style-issues.patch
kernel-forkc-remove-redundant-null-check-in-dup_mm.patch
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