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

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Message-ID: <20180920172528.GA22480@jordon-HP-15-Notebook-PC>
Date:   Thu, 20 Sep 2018 22:55:29 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     willy@...radead.org, gregkh@...uxfoundation.org, arve@...roid.com,
        tkjos@...roid.com, maco@...roid.com
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        akpm@...ux-foundation.org
Subject: [PATCH] android/binder: 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>
---
 drivers/android/binder_alloc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 64fd96e..17368ef 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -238,6 +238,7 @@ static int binder_update_page_range(struct binder_alloc *alloc, int allocate,
 		int ret;
 		bool on_lru;
 		size_t index;
+		vm_fault_t vmf;
 
 		index = (page_addr - alloc->buffer) / PAGE_SIZE;
 		page = &alloc->pages[index];
@@ -279,8 +280,8 @@ static int binder_update_page_range(struct binder_alloc *alloc, int allocate,
 		}
 		user_page_addr =
 			(uintptr_t)page_addr + alloc->user_buffer_offset;
-		ret = vm_insert_page(vma, user_page_addr, page[0].page_ptr);
-		if (ret) {
+		vmf = vmf_insert_page(vma, user_page_addr, page[0].page_ptr);
+		if (vmf != VM_FAULT_NOPAGE) {
 			pr_err("%d: binder_alloc_buf failed to map page at %lx in userspace\n",
 			       alloc->pid, user_page_addr);
 			goto err_vm_insert_page_failed;
-- 
1.9.1