[PATCH 23/33] userfaultfd: shmem: add tlbflush.h header for microblaze

[Andrea Arcangeli <aarcange@redhat.com>]

It resolves this build error:

All errors (new ones prefixed by >>):

   mm/shmem.c: In function 'shmem_mcopy_atomic_pte':
   >> mm/shmem.c:2228:2: error: implicit declaration of function
   'update_mmu_cache' [-Werror=implicit-function-declaration]
        update_mmu_cache(dst_vma, dst_addr, dst_pte);

microblaze may have to be also updated to define it in asm/pgtable.h
like the other archs, then this header inclusion can be removed.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
---
 mm/shmem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/shmem.c b/mm/shmem.c
index 66deb90..acf80c2 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -34,6 +34,8 @@
 #include <linux/uio.h>
 #include <linux/khugepaged.h>
 
+#include <asm/tlbflush.h> /* for arch/microblaze update_mmu_cache() */
+
 static struct vfsmount *shm_mnt;
 
 #ifdef CONFIG_SHMEM

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