From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=95.215.58.198 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793917504; b=eClWBNMpdGKcoEZ3GCGTthJvgZNjllbOb/TAJ2aGdfRp0fI4GlY4A67uKgWx7rJj3Bzh unhrw1BJP2fdqS9nwVDTy43x0dAGMa5MhPn8ok1KftGuMnNUT6LKTTkUkdImoVdoHnKQ6 viCQvsgInDeTHgqGKSkXV8ePAy+9V/Sqeq7lUvieSMfvtB0Fgl9njnqEHgftpsoF7dwR/ iT3iUrzvDKndSADsefHfAMsIafageCr9k+JTSV3d2Z+I7kXHscZrbLKAv+OitoW+ynSW5 ABJO7fe1YXClGOo2ohcr0MhrEH9RAfZ1YxTW3ncevJ8kErFMx42UypzaN7KATJllSeA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793917504; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=aC+qtiKQ023bm9o1O7eQng0BAlQQoW+kw14Srbp6hgo=; b=Ne1KyOY0jJOSFdIqOpUtmlb2GovvfipFhYfLCjVuZ6V7osnMBsSQd7q31oP3mEBzduy6 +A1p6VwGka/n/+elBONNh/PXmUl5IipVqAjiKGpqiCXYxGAJxTcdOHp90WV5tZR3AM4wm hzmaJ2U4w707KMteNA2sxPX05MWii94JUhg6oYlTlk0Jr+xorZEPr4YkO7THv2K6C9VHf h6gacJq1QXI7de8bNoAS5Bgvvf58jkWXuIn9dDzHVMHVoFvITcZfl7AFtar+bW6k5hIMJ BxZ3cGIuC03bNVez5quk265tNsIxVlJcUgEqXLUMQbkI1AaBNhA90uTTIxaV0rF8pGQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=QEmAV63O; arc=none smtp.remote-ip=95.215.58.198 Received: from mta1.migadu.com (out-198.mta1.migadu.com [95.215.58.198]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E10A0606A328 for ; Thu, 5 Nov 2026 22:25:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org E10A0606A328 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=QEmAV63O X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=aC+qtiKQ023bm9o1O7eQng0BAlQQoW+kw14Srbp6hgo=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1793917500; v=1; x=1794522300; b=QEmAV63Owd5BM2w6frMC5QUdHeq45kNM34HaD0v1OQq2PQulxCRLiMPjUAfpCdgJzhX7jxRd F7FL8QPwkH+3lzQ9TDFopccc4Jv4RLTuyls6DgNBAaUNgxHGE2ieItx68IDmXzWKsG9zWOdG5gh IY5pjkR0O7ME7Ws687zf08x4= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 204d4cc12b5d9ed2; 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-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list 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> 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