linux-kernel - [PATCH] kernel: event: core: Change return type to vm_fault

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Date:   Sun, 15 Apr 2018 01:58:31 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org
Cc:     linux-kernel@...r.kernel.org, willy@...radead.org
Subject: [PATCH] kernel: event: core: Change return type to vm_fault_t

Use new return type vm_fault_t for fault handler and
page_mkwrite handler in struct vm_operations_struct.

Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
Reviewed-by: Matthew Wilcox <mawilcox@...rosoft.com>
---
 kernel/events/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 96db9ae..d09f1c4 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4918,11 +4918,11 @@ void perf_event_update_userpage(struct perf_event *event)
 }
 EXPORT_SYMBOL_GPL(perf_event_update_userpage);

-static int perf_mmap_fault(struct vm_fault *vmf)
+static vm_fault_t perf_mmap_fault(struct vm_fault *vmf)
 {
 	struct perf_event *event = vmf->vma->vm_file->private_data;
 	struct ring_buffer *rb;
-	int ret = VM_FAULT_SIGBUS;
+	vm_fault_t ret = VM_FAULT_SIGBUS;

 	if (vmf->flags & FAULT_FLAG_MKWRITE) {
 		if (vmf->pgoff == 0)
--
1.9.1