From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/net/rds/info.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/kernel/net/rds/info.c b/kernel/net/rds/info.c
index e367a97..b6b46a8 100644
--- a/kernel/net/rds/info.c
+++ b/kernel/net/rds/info.c
@@ -162,7 +162,6 @@
struct rds_info_lengths lens;
unsigned long nr_pages = 0;
unsigned long start;
- unsigned long i;
rds_info_func func;
struct page **pages = NULL;
int ret;
@@ -193,7 +192,7 @@
ret = -ENOMEM;
goto out;
}
- ret = get_user_pages_fast(start, nr_pages, 1, pages);
+ ret = pin_user_pages_fast(start, nr_pages, FOLL_WRITE, pages);
if (ret != nr_pages) {
if (ret > 0)
nr_pages = ret;
@@ -235,8 +234,8 @@
ret = -EFAULT;
out:
- for (i = 0; pages && i < nr_pages; i++)
- put_page(pages[i]);
+ if (pages)
+ unpin_user_pages(pages, nr_pages);
kfree(pages);
return ret;
--
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