+ mm-__tlb_remove_page-checks-correct-batch.patch added to -mm tree

+ mm-__tlb_remove_page-checks-correct-batch.patch added to -mm tree

[akpm]

The patch titled
     mm: __tlb_remove_page() check the correct batch
has been added to the -mm tree.  Its filename is
     mm-__tlb_remove_page-checks-correct-batch.patch

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------------------------------------------------------
Subject: mm: __tlb_remove_page() check the correct batch
From: Shaohua Li <shaohua.li@intel.com>

__tlb_remove_page() switches to a new batch page, but still checks space
in the old batch.  This check always fails, and causes a forced tlb flush.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/memory.c |    1 +
 1 file changed, 1 insertion(+)

diff -puN mm/memory.c~mm-__tlb_remove_page-checks-correct-batch mm/memory.c
--- a/mm/memory.c~mm-__tlb_remove_page-checks-correct-batch
+++ a/mm/memory.c
@@ -305,6 +305,7 @@ int __tlb_remove_page(struct mmu_gather 
 	if (batch->nr == batch->max) {
 		if (!tlb_next_batch(tlb))
 			return 0;
+		batch = tlb->active;
 	}
 	VM_BUG_ON(batch->nr > batch->max);
 
_

Patches currently in -mm which might be from shaohua.li@intel.com are

mm-__tlb_remove_page-checks-correct-batch.patch
linux-next.patch
tmpfs-simplify-prealloc_page.patch
intel_idle-fix-api-misuse.patch
intel_idle-disable-auto_demotion-for-hotplugged-cpus.patch