misc: sgi-gru: Change return type to vm_fault_t

Use new return type vm_fault_t for fault handler. For
now, this is just documenting that the function returns
a VM_FAULT value rather than an errno. Once all instances
are converted, vm_fault_t will become a distinct type.

Commit 1c8f422059ae ("mm: change return type to vm_fault_t")

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Dimitri Sivanich <sivanich@hpe.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c
index 3641f13..ab174f2 100644 (file)
--- a/drivers/misc/sgi-gru/grumain.c
+++ b/drivers/misc/sgi-gru/grumain.c
@@ -926,7 +926,7 @@ again:
  *
  *     Note: gru segments alway mmaped on GRU_GSEG_PAGESIZE boundaries.
  */
-int gru_fault(struct vm_fault *vmf)
+vm_fault_t gru_fault(struct vm_fault *vmf)
 {
        struct vm_area_struct *vma = vmf->vma;
        struct gru_thread_state *gts;

diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index b5e308b..3e041b6 100644 (file)
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -147,6 +147,7 @@
 #include <linux/mutex.h>
 #include <linux/wait.h>
 #include <linux/mmu_notifier.h>
+#include <linux/mm_types.h>
 #include "gru.h"
 #include "grulib.h"
 #include "gruhandles.h"
@@ -665,7 +666,7 @@ extern unsigned long gru_reserve_cb_resources(struct gru_state *gru,
                int cbr_au_count, char *cbmap);
 extern unsigned long gru_reserve_ds_resources(struct gru_state *gru,
                int dsr_au_count, char *dsmap);
-extern int gru_fault(struct vm_fault *vmf);
+extern vm_fault_t gru_fault(struct vm_fault *vmf);
 extern struct gru_mm_struct *gru_register_mmu_notifier(void);
 extern void gru_drop_mmu_notifier(struct gru_mm_struct *gms);