linux-kernel - Re: [PATCH] x86/sgx: Fix SRCU list traversal

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Message-ID: <4adb6d4704e678e2d28b840ceaa7eda74cfac6ee.camel@intel.com>
Date: Wed, 11 Feb 2026 10:38:53 +0000
From: "Huang, Kai" <kai.huang@...el.com>
To: "jarkko@...nel.org" <jarkko@...nel.org>, "x86@...nel.org"
	<x86@...nel.org>, "bp@...en8.de" <bp@...en8.de>, "lirongqing@...du.com"
	<lirongqing@...du.com>, "hpa@...or.com" <hpa@...or.com>, "mingo@...hat.com"
	<mingo@...hat.com>, "linux-sgx@...r.kernel.org" <linux-sgx@...r.kernel.org>,
	"dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
	"tglx@...nel.org" <tglx@...nel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86/sgx: Fix SRCU list traversal

On Wed, 2026-02-04 at 20:53 -0500, lirongqing wrote:
> From: Li RongQing <lirongqing@...du.com>
> 
> Replace list_for_each_entry_rcu() with list_for_each_entry_srcu()
> when traversing the encl->mm_list protected by SRCU. This ensures
> proper synchronization annotation and avoids potential lockdep
> warnings about incorrect RCU usage.
> 
> The list is protected by encl->srcu, not RCU, so the SRCU-specific
> iterator with srcu_read_lock_held() annotation is required.
> 
> Signed-off-by: Li RongQing <lirongqing@...du.com>

Acked-by: Kai Huang <kai.huang@...el.com>