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Subject[PATCH] Drop some headers from mm.h
From
mm.h doesn't use directly anything from mutex.h and backing-dev.h, so
remove them and add them back to files which need them.

Cross-compile tested on many configs and archs.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

BTW, switching to SLUB makes this nice workload to go OOM, which SLAB
never allowed itself, however, I'm not prepared right now to tell the
story. It smells like semi-recent breakage, because, I can swear,
I ran it with SLUB for stress-testing purposes.

fs/afs/write.c | 2 +-
include/linux/mm.h | 2 --
mm/fremap.c | 2 +-
mm/mmap.c | 1 +
mm/truncate.c | 1 +
5 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/afs/write.c b/fs/afs/write.c
index a03b92a..4b72207 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -8,7 +8,7 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
-
+#include <linux/backing-dev.h>
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1692dd6..57d44ae 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -10,9 +10,7 @@
#include <linux/mmzone.h>
#include <linux/rbtree.h>
#include <linux/prio_tree.h>
-#include <linux/mutex.h>
#include <linux/debug_locks.h>
-#include <linux/backing-dev.h>
#include <linux/mm_types.h>

struct mempolicy;
diff --git a/mm/fremap.c b/mm/fremap.c
index c395b1a..8dfae8f 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -5,7 +5,7 @@
*
* started by Ingo Molnar, Copyright (C) 2002, 2003
*/
-
+#include <linux/backing-dev.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/file.h>
diff --git a/mm/mmap.c b/mm/mmap.c
index 0d40e66..9e685b9 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -7,6 +7,7 @@
*/

#include <linux/slab.h>
+#include <linux/backing-dev.h>
#include <linux/mm.h>
#include <linux/shm.h>
#include <linux/mman.h>
diff --git a/mm/truncate.c b/mm/truncate.c
index 5cdfbc1..3bdf108 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -8,6 +8,7 @@
*/

#include <linux/kernel.h>
+#include <linux/backing-dev.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/module.h>
-
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