* [merged] fix-memory-ordering-bug-in-mm-vmallocc.patch removed from -mm tree
@ 2014-12-14 4:08 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2014-12-14 4:08 UTC (permalink / raw)
To: dvyukov, edumazet, iamjoonsoo.kim, mm-commits
The patch titled
Subject: mm/vmalloc.c: fix memory ordering bug
has been removed from the -mm tree. Its filename was
fix-memory-ordering-bug-in-mm-vmallocc.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Dmitry Vyukov <dvyukov@google.com>
Subject: mm/vmalloc.c: fix memory ordering bug
Read memory barriers must follow the read operations.
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Acked-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/vmalloc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/vmalloc.c~fix-memory-ordering-bug-in-mm-vmallocc mm/vmalloc.c
--- a/mm/vmalloc.c~fix-memory-ordering-bug-in-mm-vmallocc
+++ a/mm/vmalloc.c
@@ -2574,10 +2574,10 @@ static void show_numa_info(struct seq_fi
if (!counters)
return;
- /* Pair with smp_wmb() in clear_vm_uninitialized_flag() */
- smp_rmb();
if (v->flags & VM_UNINITIALIZED)
return;
+ /* Pair with smp_wmb() in clear_vm_uninitialized_flag() */
+ smp_rmb();
memset(counters, 0, nr_node_ids * sizeof(unsigned int));
_
Patches currently in -mm which might be from dvyukov@google.com are
origin.patch
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2014-12-14 4:08 [merged] fix-memory-ordering-bug-in-mm-vmallocc.patch removed from -mm tree akpm
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