Message ID | 20210205165406.4655-3-peterx@redhat.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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[174.93.89.182]) by smtp.gmail.com with ESMTPSA id 12sm9618893qkg.39.2021.02.05.08.53.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Feb 2021 08:53:33 -0800 (PST) From: Peter Xu <peterx@redhat.com> To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Gal Pressman <galpress@amazon.com>, Andrea Arcangeli <aarcange@redhat.com>, Christoph Hellwig <hch@lst.de>, Miaohe Lin <linmiaohe@huawei.com>, Kirill Shutemov <kirill@shutemov.name>, Jann Horn <jannh@google.com>, Matthew Wilcox <willy@infradead.org>, Jan Kara <jack@suse.cz>, Jason Gunthorpe <jgg@ziepe.ca>, Linus Torvalds <torvalds@linux-foundation.org>, Mike Rapoport <rppt@linux.vnet.ibm.com>, David Gibson <david@gibson.dropbear.id.au>, Mike Kravetz <mike.kravetz@oracle.com>, peterx@redhat.com, Kirill Tkhai <ktkhai@virtuozzo.com>, Wei Zhang <wzam@amazon.com>, Andrew Morton <akpm@linux-foundation.org> Subject: [PATCH v3 2/5] hugetlg: Break earlier in add_reservation_in_range() when we can Date: Fri, 5 Feb 2021 11:54:03 -0500 Message-Id: <20210205165406.4655-3-peterx@redhat.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210205165406.4655-1-peterx@redhat.com> References: <20210205165406.4655-1-peterx@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=peterx@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable 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: <linux-mm.kvack.org> |
Series |
mm/hugetlb: Early cow on fork, and a few cleanups
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expand
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diff --git a/mm/hugetlb.c b/mm/hugetlb.c index ec8e29c805fe..71ccec5c3817 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -387,7 +387,7 @@ static long add_reservation_in_range(struct resv_map *resv, long f, long t, /* When we find a region that starts beyond our range, we've * finished. */ - if (rg->from > t) + if (rg->from >= t) break; /* Add an entry for last_accounted_offset -> rg->from, and