Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count

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To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
From: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Date: Wed, 18 Dec 2024 16:47:05 -0800
Cc: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, willy@xxxxxxxxxxxxx, lorenzo.stoakes@xxxxxxxxxx, mhocko@xxxxxxxx, vbabka@xxxxxxx, hannes@xxxxxxxxxxx, mjguzik@xxxxxxxxx, oliver.sang@xxxxxxxxx, mgorman@xxxxxxxxxxxxxxxxxxx, david@xxxxxxxxxx, peterx@xxxxxxxxxx, oleg@xxxxxxxxxx, dave@xxxxxxxxxxxx, paulmck@xxxxxxxxxx, brauner@xxxxxxxxxx, dhowells@xxxxxxxxxx, hdanton@xxxxxxxx, hughd@xxxxxxxxxx, lokeshgidra@xxxxxxxxxx, minchan@xxxxxxxxxx, jannh@xxxxxxxxxx, shakeel.butt@xxxxxxxxx, souravpanda@xxxxxxxxxx, pasha.tatashin@xxxxxxxxxx, klarasmodin@xxxxxxxxx, corbet@xxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kernel-team@xxxxxxxxxxx
In-reply-to: <20241218163557.1ce2d68cacd3d800c1fea1af@linux-foundation.org>
References: <CAJuCfpFYZkc===SXF35s3C0xg3q5RjpCiOQhwK=9_3RnFUye1g@mail.gmail.com> <20241218161850.GG2354@noisy.programming.kicks-ass.net> <CAJuCfpHDRCoaBfE8y6AppKveSTgayyTNfDyQWH=gMzO-Pkuqpw@mail.gmail.com> <20241218174428.GQ2354@noisy.programming.kicks-ass.net> <CAJuCfpEKg_h5pw2AxdF1wmFMt4xdOxYqv7U1uVMYcuSCB4kHuA@mail.gmail.com> <r7polqnhdguxrz6npklag5kjy7ipbj5lrnqai2qm3jt7x56hci@cfrcom746iae> <CAJuCfpGeRi73E94VCDPDGAGG+5-Sj-_YGf3JNnf6Bh4GH_M6jA@mail.gmail.com> <CAJuCfpHJwVXanjG0WGjo0KHHEbg1-T0HWTZqDpssoq3FvfG++A@mail.gmail.com> <jes252u5qfhla2bdmg6pdkfpi4a2jfhf7d5b6ra6ol2bmt352x@gunhzaca56df> <CAJuCfpFSD98fw=844AJPy+LT5y=zREQGtSEVj3_FCXiZ5cFR_A@mail.gmail.com> <ulbspoec633hfm54f3jzvoqs6ilskxou3qykk2u727pbaltvfl@lb53vjcaxnuf> <CAJuCfpHXRX=LLa67eWYvrK=UDxKMaOequFXfqOqDHbRrmsT9SQ@mail.gmail.com> <20241218163557.1ce2d68cacd3d800c1fea1af@linux-foundation.org>

On Wed, Dec 18, 2024 at 4:36 PM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Wed, 18 Dec 2024 13:53:17 -0800 Suren Baghdasaryan <surenb@xxxxxxxxxx> wrote:
>
> > > There is a loop for_each_vma_range() that does:
> > >
> > > vma_start_write(next);
> > > mas_set(mas_detach, vms->mas_count++);
> > > mas_store_gfp(mas_detach, next, GFP_KERNEL);
> >
> > Ah, ok I see now. I completely misunderstood what for_each_vma_range()
> > was doing.
>
> I'll drop the v6 series from mm-unstable.

Sounds good. v7 will be quite different.

References:
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Suren Baghdasaryan
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Peter Zijlstra
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Suren Baghdasaryan
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Peter Zijlstra
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Suren Baghdasaryan
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Liam R. Howlett
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Suren Baghdasaryan
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Suren Baghdasaryan
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Liam R. Howlett
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Suren Baghdasaryan
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Liam R. Howlett
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Suren Baghdasaryan
- Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count
  - From: Andrew Morton

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