linux-kernel - [PATCH] kernel/kcov: Replace vm_insert_page with vmf_insert

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Message-ID: <20180920191254.GA22764@jordon-HP-15-Notebook-PC>
Date:   Fri, 21 Sep 2018 00:42:54 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     willy@...radead.org, akpm@...ux-foundation.org,
        mark.rutland@....com, aryabinin@...tuozzo.com, dvyukov@...gle.com,
        tglx@...utronix.de, gregkh@...uxfoundation.org, tchibo@...gle.com
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] kernel/kcov: Replace vm_insert_page with vmf_insert_page

There is a plan to replace vm_insert_page with new API
vmf_insert_page. As part of it, converting vm_insert_page
to use vmf_insert_page.

Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
---
 kernel/kcov.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/kcov.c b/kernel/kcov.c
index 3ebd09e..8900d8e 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -293,8 +293,9 @@ static int kcov_mmap(struct file *filep, struct vm_area_struct *vma)
 		spin_unlock(&kcov->lock);
 		for (off = 0; off < size; off += PAGE_SIZE) {
 			page = vmalloc_to_page(kcov->area + off);
-			if (vm_insert_page(vma, vma->vm_start + off, page))
-				WARN_ONCE(1, "vm_insert_page() failed");
+			if (vmf_insert_page(vma, vma->vm_start + off, page)
+					!= VM_FAULT_NOPAGE)
+				WARN_ONCE(1, "vmf_insert_page() failed");
 		}
 		return 0;
 	}
-- 
1.9.1