lkml.org 
[lkml]   [2017]   [Oct]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] mm: remove unnecessary WARN_ONCE in page_vma_mapped_walk().
On Tue, Oct 03, 2017 at 10:26:06AM -0400, Zi Yan wrote:
> From: Zi Yan <zi.yan@cs.rutgers.edu>
>
> A non present pmd entry can appear after pmd_lock is taken in
> page_vma_mapped_walk(), even if THP migration is not enabled.
> The WARN_ONCE is unnecessary.
>
> Fixes: 616b8371539a ("mm: thp: enable thp migration in generic path")
> Reported-and-tested-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
> Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu>
> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

--
Kirill A. Shutemov

\
 
 \ /
  Last update: 2017-10-03 18:45    [W:0.032 / U:1.980 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site