From: Christoph Hellwig <hch@xxxxxx> 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@xxxxxx Signed-off-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx> Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- 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> _
