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>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 4091692bed8c00b753c4e8a8a920a50ccb1146f4..097bbbb374936829dca92637ec315d89861585dd 100644 (file)
--- a/include/linux/mempolicy.h
+++ b/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>

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index bdbbb32211a586d03dbc79604c4c670d9542b03e..8376cfe0efce70df2bd085f14e749f4e9fc9cbc2 100644 (file)
--- a/mm/memory-failure.c
+++ b/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>