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Thu, 05 Nov 2026 22:25:00 +0000 X-Mizu-Trace-ID: 204d4cc12b5d9ed2 X-Migadu-Flow: FLOW_OUT Date: Thu, 5 Nov 2026 22:24:54 +0000 From: "Jose Fernandez (Anthropic)" To: Andrew Morton Cc: "Matthew Wilcox (Oracle)" , Jan Kara , David Hildenbrand , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Krystian Kaniewski , stable@vger.kernel.org Subject: Re: [PATCH v2] mm/filemap: stop fault-around when the walk steps back Message-ID: References: <20261031-jf-mm-filemap-map-pages-lower-bound-v2-1-21029744e589@linux.dev> <20261102092750.e53073b2c7b872f9d70c0711@linux-foundation.org> <20261105-jf-filemap-v2-akpm-testedby-reply-r1-36ef39856b46@linux.dev> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261105-jf-filemap-v2-akpm-testedby-reply-r1-36ef39856b46@linux.dev> X-Stat-Signature: ku9cknxs5jmpposbbthbtp4mxgm5174r X-Rspamd-Queue-Id: 7729740005 X-Rspam-User: X-Rspamd-Server: rspam11 X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-HE-Tag: 1793917503-796582 X-HE-Meta: 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 0lvgVqhR 7ZCxlrAnOvct+KuR0n1/C8AbETO6vD90x7i/cYomkWWxUTcXt8ARyhqKXc1cscD0Di1mHu1oNV4EtnIX2rESzOyiPHLiRYDew8MZZu+Ju9GjE6sUWYzV8y01QSORLNyqamC5exMWAWvs94C64dXXBw1N6TjTr1aQZeskazvJ5vsAaDoYcw3AdxCImuA6G+mKpZY3OKD2vlCvDc2jhNuIgXp7/5eF9vEtIzyk9qb0GRmuEmb0uiiN2QD7EdSgWA5UuxkrAGNB1xTbXDOI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Thu, 5 Nov 2026 22:13:34 +0000, Jose Fernandez wrote: > I ran it under the stress test from my reply to Pedro in this thread. I also ran the check_multi_find_4 test that comes with the patch. It fails without the fix and passes with it. The stress test only ran with the fix applied. - Jose