linux-kernel - [PATCH] fork: Use __vmalloc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250317163614.166502-1-urezki@gmail.com>
Date: Mon, 17 Mar 2025 17:36:14 +0100
From: "Uladzislau Rezki (Sony)" <urezki@...il.com>
To: LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc: Christian Brauner <brauner@...nel.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Tejun Heo <tj@...nel.org>,
	Uladzislau Rezki <urezki@...il.com>,
	Oleksiy Avramchenko <oleksiy.avramchenko@...y.com>
Subject: [PATCH] fork: Use __vmalloc_node() for stack allocation

Replace __vmalloc_node_range() by the __vmalloc_node() function.
The last variant requires less parameters and it uses exactly the
same arguments which are partly now hidden inside __vmalloc_node()
function.

This change does not change any functionality. It makes the code
a bit simpler.

Signed-off-by: Uladzislau Rezki (Sony) <urezki@...il.com>
---
 kernel/fork.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index 2fa2a3582925..72d9e7c7639e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -311,11 +311,9 @@ static int alloc_thread_stack_node(struct task_struct *tsk, int node)
 	 * so memcg accounting is performed manually on assigning/releasing
 	 * stacks to tasks. Drop __GFP_ACCOUNT.
 	 */
-	stack = __vmalloc_node_range(THREAD_SIZE, THREAD_ALIGN,
-				     VMALLOC_START, VMALLOC_END,
+	stack = __vmalloc_node(THREAD_SIZE, THREAD_ALIGN,
 				     THREADINFO_GFP & ~__GFP_ACCOUNT,
-				     PAGE_KERNEL,
-				     0, node, __builtin_return_address(0));
+				     node, __builtin_return_address(0));
 	if (!stack)
 		return -ENOMEM;
 
-- 
2.39.5