linux-kernel - [PATCH v7 0/3] Anonymous VMA naming patches

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Date:   Tue,  1 Sep 2020 21:44:56 +0530
From:   Sumit Semwal <sumit.semwal@...aro.org>
To:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Alexey Dobriyan <adobriyan@...il.com>,
        Jonathan Corbet <corbet@....net>
Cc:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Michal Hocko <mhocko@...e.com>,
        Colin Cross <ccross@...gle.com>,
        Alexey Gladkov <gladkov.alexey@...il.com>,
        Matthew Wilcox <willy@...radead.org>,
        Jason Gunthorpe <jgg@...pe.ca>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        Michel Lespinasse <walken@...gle.com>,
        Michal Koutný <mkoutny@...e.com>,
        Song Liu <songliubraving@...com>,
        Huang Ying <ying.huang@...el.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Yang Shi <yang.shi@...ux.alibaba.com>,
        chenqiwu <chenqiwu@...omi.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        John Hubbard <jhubbard@...dia.com>,
        Mike Christie <mchristi@...hat.com>,
        Bart Van Assche <bvanassche@....org>,
        Amit Pundir <amit.pundir@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Christian Brauner <christian.brauner@...ntu.com>,
        Daniel Jordan <daniel.m.jordan@...cle.com>,
        Adrian Reber <areber@...hat.com>,
        Nicolas Viennot <Nicolas.Viennot@...sigma.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel@...r.kernel.org,
        John Stultz <john.stultz@...aro.org>,
        Sumit Semwal <sumit.semwal@...aro.org>
Subject: [PATCH v7 0/3] Anonymous VMA naming patches

Version v4 of these patches was sent by Colin Cross a long time ago [1]
and [2]. At the time, these patches were not merged, and it looks like they
just fell off the radar since.

In our efforts to run Android on mainline kernels, we realised that since past
some time, this patchset is needed for Android to boot, hence I am re-posting
it to try and get these discussed and hopefully merged.

I have rebased these for v5.9-rc3 and fixed minor updates as required.

---
v6: Rebased to v5.9-rc3 and addressed review comments:
    - added missing callers in fs/userfaultd.c
    - simplified the union
    - use the new access_remote_vm_locked() in show_map_vma() since that
       already holds mmap_lock
v7: fixed randconfig build failure when CONFIG_ADVISE_SYSCALLS isn't defined

Colin Cross (2):
  mm: rearrange madvise code to allow for reuse
  mm: add a field to store names for private anonymous memory

Sumit Semwal (1):
  mm: memory: Add access_remote_vm_locked variant

 Documentation/filesystems/proc.rst |   2 +
 fs/proc/task_mmu.c                 |  24 +-
 fs/userfaultfd.c                   |   7 +-
 include/linux/mm.h                 |  14 +-
 include/linux/mm_types.h           |  25 +-
 include/uapi/linux/prctl.h         |   3 +
 kernel/sys.c                       |  32 +++
 mm/interval_tree.c                 |   2 +-
 mm/madvise.c                       | 356 +++++++++++++++++------------
 mm/memory.c                        |  49 +++-
 mm/mempolicy.c                     |   3 +-
 mm/mlock.c                         |   2 +-
 mm/mmap.c                          |  38 +--
 mm/mprotect.c                      |   2 +-
 14 files changed, 381 insertions(+), 178 deletions(-)

-- 
2.28.0