+ mm-thp-refactor-numa-fault-handling-fix.patch added to -mm tree

+ mm-thp-refactor-numa-fault-handling-fix.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm: thp: fix a double unlock bug
has been added to the -mm tree.  Its filename is
     mm-thp-refactor-numa-fault-handling-fix.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-thp-refactor-numa-fault-handling-fix.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-thp-refactor-numa-fault-handling-fix.patch

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------------------------------------------------------
From: Dan Carpenter <dan.carpenter@oracle.com>
Subject: mm: thp: fix a double unlock bug

We're supposed to be holding the "vmf->ptl" spin_lock when we goto
out_map.  The lock is dropped after if finishes cleaning up.

Link: https://lkml.kernel.org/r/YLX8uYN01JmfLnlK@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: Yang Shi <shy828301@gmail.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/huge_memory.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/mm/huge_memory.c~mm-thp-refactor-numa-fault-handling-fix
+++ a/mm/huge_memory.c
@@ -1465,10 +1465,8 @@ vm_fault_t do_huge_pmd_numa_page(struct
 
 	pmd = pmd_modify(oldpmd, vma->vm_page_prot);
 	page = vm_normal_page_pmd(vma, haddr, pmd);
-	if (!page) {
-		spin_unlock(vmf->ptl);
+	if (!page)
 		goto out_map;
-	}
 
 	/* See similar comment in do_numa_page for explanation */
 	if (!was_writable)
_

Patches currently in -mm which might be from dan.carpenter@oracle.com are

ocfs2-fix-snprintf-checking.patch
mm-thp-refactor-numa-fault-handling-fix.patch