+ mm-dont-include-linux-daxh-in-linux-mempolicyh.patch added to -mm tree

+ mm-dont-include-linux-daxh-in-linux-mempolicyh.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm: don't include <linux/dax.h> in <linux/mempolicy.h>
has been added to the -mm tree.  Its filename is
     mm-dont-include-linux-daxh-in-linux-mempolicyh.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-dont-include-linux-daxh-in-linux-mempolicyh.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-dont-include-linux-daxh-in-linux-mempolicyh.patch

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: Christoph Hellwig <hch@lst.de>
Subject: mm: don't include <linux/dax.h> in <linux/mempolicy.h>

Not required at all, and having this causes a huge kernel rebuild as soon
as something in dax.h changes.

Link: https://lkml.kernel.org/r/20210921082253.1859794-1-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/mempolicy.h |    1 -
 mm/memory-failure.c       |    1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

--- a/include/linux/mempolicy.h~mm-dont-include-linux-daxh-in-linux-mempolicyh
+++ a/include/linux/mempolicy.h
@@ -8,7 +8,6 @@
 
 #include <linux/sched.h>
 #include <linux/mmzone.h>
-#include <linux/dax.h>
 #include <linux/slab.h>
 #include <linux/rbtree.h>
 #include <linux/spinlock.h>
--- a/mm/memory-failure.c~mm-dont-include-linux-daxh-in-linux-mempolicyh
+++ a/mm/memory-failure.c
@@ -39,6 +39,7 @@
 #include <linux/kernel-page-flags.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/task.h>
+#include <linux/dax.h>
 #include <linux/ksm.h>
 #include <linux/rmap.h>
 #include <linux/export.h>
_

Patches currently in -mm which might be from hch@lst.de are

mm-dont-include-linux-daxh-in-linux-mempolicyh.patch
mm-unexport-folio_memcg_unlock.patch
mm-unexport-unlock_page_memcg.patch