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From: Souptick Joarder <>
Subject: [PATCH v2] misc: sgi-gru: Change return type to vm_fault_t
Date: Wed, 25 Apr 2018 10:20:44 +0530	[thread overview]
Message-ID: <20180425045044.GA21558@jordon-HP-15-Notebook-PC> (raw)

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 <>
Reviewed-by: Matthew Wilcox <>
Acked-by: Dimitri Sivanich <>
v2: Updated the change log

 drivers/misc/sgi-gru/grumain.c   | 2 +-
 drivers/misc/sgi-gru/grutables.h | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c
index 3641f13..ab174f28 100644
--- a/drivers/misc/sgi-gru/grumain.c
+++ b/drivers/misc/sgi-gru/grumain.c
@@ -926,7 +926,7 @@ struct gru_state *gru_assign_gru_context(struct gru_thread_state *gts)
  * 	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
--- 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);

             reply	other threads:[~2018-04-25  4:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-25  4:50 Souptick Joarder [this message]
2018-05-09 19:46 ` Dimitri Sivanich

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