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a=rsa-sha256; c=relaxed/relaxed; d=stgolabs.net; s=dreamhost; t=1731949076; bh=M6rsCIHZcAigq8kHezC+lUPcy49ca27h0PYMGsT2oMY=; h=Date:From:To:Cc:Subject:Content-Type; b=HGRvEiegxQf07F+hiZxIcchbcVgmTg8utpA/HWsbnrb8YlxssaFf8ozofTHVzK1c5 ttfl2FGNqS6ruR9w+mVMs7dYB0SnXq0rMtRGVW3r5mLw1PrUwIJ782FNvX5DiEYco4 0flD75MIp+0xg+v+Ng2aHrijbABz7SfZaC72HOFvQGjSreuXZNkPZprToMWt3A4IxO 5ljZKeqGMcoGar7dmHZYSdpyCjWO6Y5KP+NpCGhXckE3Kl2McNvs79jNB7q+klrrKF 3fyD70v/SEiEpEzWOQzXSczN87pEWFBcEKMlN1NTFLU4nSDrw+l0NO9s8mQvXs6Vik 7YbCHbExPFuFQ== Date: Mon, 18 Nov 2024 08:57:51 -0800 From: Davidlohr Bueso To: Suren Baghdasaryan Cc: akpm@linux-foundation.org, willy@infradead.org, liam.howlett@oracle.com, lorenzo.stoakes@oracle.com, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, mjguzik@gmail.com, oliver.sang@intel.com, mgorman@techsingularity.net, david@redhat.com, peterx@redhat.com, oleg@redhat.com, paulmck@kernel.org, brauner@kernel.org, dhowells@redhat.com, hdanton@sina.com, hughd@google.com, minchan@google.com, jannh@google.com, shakeel.butt@linux.dev, souravpanda@google.com, pasha.tatashin@soleen.com, corbet@lwn.net, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@android.com Subject: Re: [PATCH v3 1/5] mm: introduce vma_start_read_locked{_nested} helpers Message-ID: <20241118165751.3eqb5d4vobslkjpi@offworld> Mail-Followup-To: Suren Baghdasaryan , akpm@linux-foundation.org, willy@infradead.org, liam.howlett@oracle.com, lorenzo.stoakes@oracle.com, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, mjguzik@gmail.com, oliver.sang@intel.com, mgorman@techsingularity.net, david@redhat.com, peterx@redhat.com, oleg@redhat.com, paulmck@kernel.org, brauner@kernel.org, dhowells@redhat.com, hdanton@sina.com, hughd@google.com, minchan@google.com, jannh@google.com, shakeel.butt@linux.dev, souravpanda@google.com, pasha.tatashin@soleen.com, corbet@lwn.net, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@android.com References: <20241117080931.600731-1-surenb@google.com> <20241117080931.600731-2-surenb@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20241117080931.600731-2-surenb@google.com> User-Agent: NeoMutt/20220429 X-Rspam-User: X-Rspamd-Queue-Id: 37E5C120023 X-Rspamd-Server: rspam11 X-Stat-Signature: r7ojhimzwuec46r6w9qg5dfx98tcx1ud X-HE-Tag: 1731949011-534056 X-HE-Meta: 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 QMEMkZW5 uBjO+JTZEB/x4DQN9s41TucfSf+5mqMZuftOJ/fzBB+W0HiWA2EF2wPaih0alfBkMag1wMVWOMZG12hggH5at6Ay6U0f7+xfqVnrehBR5ffqzzvq60Ux+HWE2PhPxqGC0lJNGUDSradsYTS2Rg0wCuugpVPqVZytOyHK8ajRiq3gDiiVKJOsuKV+8pwQU/K698SMMV3amYTfgm+5da5nLwcOcaEXtwwPtPzyC562mvd098UaBrq4sH5W4JZqLhYQsfgb2jSbrEbQPmHzAJcMWMs9e1qaAGy8csShp+FNGyaPtr8kU3nlyOUGvL8PLV3xfvcTkjW1SDRLu/xOJ0nqNeUYycx7e2gnSvjpQXWvAizeH00AfFldd3KXTKfyn3aH7oJ3r2nes7IyEwCOUhtN287eAX4UfFmr94QEoKfPkOBaSlns= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sun, 17 Nov 2024, Suren Baghdasaryan wrote: >Introduce helper functions which can be used to read-lock a VMA when >holding mmap_lock for read. Replace direct accesses to vma->vm_lock >with these new helpers. > Reviewed-by: Davidlohr Bueso >Signed-off-by: Suren Baghdasaryan