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Shutemov" , riel@surriel.com, rostedt@goodmis.org, peterz@infradead.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: b64zi9h7ahktzo7m8tf6gtgup1nbscnq X-Rspam-User: Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=KjSi+vqR; spf=pass (imf26.hostedemail.com: domain of matenajakub@gmail.com designates 209.85.210.174 as permitted sender) smtp.mailfrom=matenajakub@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: A7EAF140045 X-HE-Tag: 1653909283-733453 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: On Mon, May 30, 2022 at 1:47 AM Andrew Morton w= rote: > > On Fri, 27 May 2022 23:17:08 +0200 Jakub Mat=C4=9Bna wrote: > > > When mremap call results in expansion, it might be possible to merge th= e > > VMA with the next VMA which might become adjacent. This patch adds > > vma_merge call after the expansion is done to try and merge. > > Thanks. > > Would it make sense to add a test case for this in (I assume) > tools/testing/selftests/vm/mremap_test.c? Maybe parse /proc/self/maps > and check that the merging occurred as expected? > It shouldn't be a problem and it makes sense. I will do it. Jakub Mat=C4=9Bna