linux-kernel - Re: [PATCH v4 07/12] mm: enable lazy

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 for Android: free password hash cracker in your pocket

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

Message-ID: <87h5v73xjs.ritesh.list@gmail.com>
Date: Thu, 06 Nov 2025 22:31:27 +0530
From: Ritesh Harjani (IBM) <ritesh.list@...il.com>
To: Alexander Gordeev <agordeev@...ux.ibm.com>
Cc: Kevin Brodsky <kevin.brodsky@....com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, 
	Andreas Larsson <andreas@...sler.com>, Andrew Morton <akpm@...ux-foundation.org>, 
	Boris Ostrovsky <boris.ostrovsky@...cle.com>, Borislav Petkov <bp@...en8.de>, 
	Catalin Marinas <catalin.marinas@....com>, Christophe Leroy <christophe.leroy@...roup.eu>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, David Hildenbrand <david@...hat.com>, 
	"David S. Miller" <davem@...emloft.net>, David Woodhouse <dwmw2@...radead.org>, 
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>, Jann Horn <jannh@...gle.com>, 
	Juergen Gross <jgross@...e.com>, "Liam R. Howlett" <Liam.Howlett@...cle.com>, 
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, Madhavan Srinivasan <maddy@...ux.ibm.com>, 
	Michael Ellerman <mpe@...erman.id.au>, Michal Hocko <mhocko@...e.com>, Mike Rapoport <rppt@...nel.org>, 
	Nicholas Piggin <npiggin@...il.com>, Peter Zijlstra <peterz@...radead.org>, 
	Ryan Roberts <ryan.roberts@....com>, Suren Baghdasaryan <surenb@...gle.com>, 
	Thomas Gleixner <tglx@...utronix.de>, Vlastimil Babka <vbabka@...e.cz>, Will Deacon <will@...nel.org>, 
	Yeoreum Yun <yeoreum.yun@....com>, linux-arm-kernel@...ts.infradead.org, 
	linuxppc-dev@...ts.ozlabs.org, sparclinux@...r.kernel.org, 
	xen-devel@...ts.xenproject.org, x86@...nel.org
Subject: Re: [PATCH v4 07/12] mm: enable lazy_mmu sections to nest

Ritesh Harjani (IBM) <ritesh.list@...il.com> writes:

> For e.g... 
>   
>     arch_enter_lazy_mmu_mode()
>         hpte_need_flush()
>             get_cpu_var()   // this takes care of preempt_disable() 
>             adds vpns to per-cpu batch[i]
>             put_cpu_var()   // 
>     arch_leave_lazy_mmu_mode()
>

Sorry, here is the more accurate call sequence for previous email.

caller()... 
     arch_enter_lazy_mmu_mode()
     ptep_xxx_()
        pte_update()
             hpte_need_flush()
                get_cpu_var()   // this takes care of preempt_disable() 
                adds vpns to per-cpu batch[i]
                put_cpu_var()   // 
     arch_leave_lazy_mmu_mode()

-ritesh