From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELuFX2vvYw7qscKJWUTsbLvNYLat2E/cfuOqpYjN9x2Yw1x69GxDOIoHPY2zlDc8AvwhOSo+ ARC-Seal: i=1; a=rsa-sha256; t=1522153885; cv=none; d=google.com; s=arc-20160816; b=FP7hKnnLUOMBTTc2GZUz3lpqFqiF8csF68WfIJsIhxgHsGUsUqsH9IGUUqPAVzj1+Z XUm/ZXo3n/t8mYd4g6wnorbKuiH3Rtd04FTyny/qC5UzxBq1M/NHn95PFUm/7xHrSWql xvFUnldvKhuYdJgXKjhQlBQnxDdmKFwQe6MfgRk+GV9FiPE2K6mMffdwS31WNKMAFcE4 MpPx+X4qx1GNrg1auns2VHd/XecI1Cr1V5XBCPe0gqOT1CVMp1Sd43hnhFJaGQ7e3q/q Omo9v6q/XAhH4EGzRwYqgA4PNmXMoHGbIPPi8wCm5jpqBlvxGkVfpeHk8kYSB5ILsu44 8SWQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:dlp-filter:cms-type:content-transfer-encoding:date :message-id:in-reply-to:cc:to:from:sender:reply-to:subject :mime-version:dkim-signature:dkim-filter:arc-authentication-results; bh=xo/Ma1pemF9WR5F60ZHQBTkwPhbvhfqMuyApM71cEeI=; b=a6NcNFsUcYNTI4YqiTvcz/ZEjc9ic7gXrAn84dS2e+of8sj2M/WPWyDnaTuFI61sK0 IdhtIoeAg+KNU7yvFEgXUm/KqwRbhhB9fh2eV0KM0Cys9FDMb9f3QXZcF3WNjQz2B0QL VRXYcAgj3CO8WpLtA6aqBPtbvp+RduFeGJp2JjcXWFLRLuPrjmeHebZrAc2dnMP+kEQI 2OL92WxgNn0LqLYyGqD/13XeWfvPGVf74owSZENVauXq3vzvfLGKLFFPHptJsyNdHZVK 4BQN/Rwz1UzGDfDh5PDuRS0Qm3PzQegMqA9g+RmJmDlrUoUShRpWEXxpFLdgxF5heyBb 38hg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=dJQHvson; spf=pass (google.com: domain of maninder1.s@samsung.com designates 203.254.224.33 as permitted sender) smtp.mailfrom=maninder1.s@samsung.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com Authentication-Results: mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=dJQHvson; spf=pass (google.com: domain of maninder1.s@samsung.com designates 203.254.224.33 as permitted sender) smtp.mailfrom=maninder1.s@samsung.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com DKIM-Filter: OpenDKIM Filter v2.11.0 mailout3.samsung.com 20180327123124epoutp03d5ce7795d6276c90b4e01201d5fc6744~fxuSdlloH2012320123epoutp03C X-AuditID: b6c32a49-71dff70000000fee-45-5aba399a8f22 Mime-Version: 1.0 Subject: Re: [PATCH v2] mm/page_owner: ignore everything below the IRQ entry point Reply-To: maninder1.s@samsung.com Sender: Maninder Singh From: Maninder Singh To: Andrew Morton , Vaneet Narang CC: Dmitry Vyukov , Andrey Ryabinin , Alexander Potapenko , Kate Stewart , Thomas Gleixner , Philippe Ombredanne , Greg Kroah-Hartman , Vlastimil Babka , Stephen Rothwell , Michal Hocko , "vinmenon@codeaurora.org" , "gomonovych@gmail.com" , Ayush Mittal , LKML , kasan-dev , Linux-MM , AMIT SAHRAWAT , PANKAJ MISHRA X-Priority: 3 X-Content-Kind-Code: NORMAL In-Reply-To: <20180326125228.1f40abb9a52f3674b1491aea@linux-foundation.org> X-Drm-Type: Y,confirm X-Msg-Generator: Mail X-Msg-Type: PERSONAL X-Reply-Demand: N Message-ID: <20180327114019epcms5p41dec80bebd551f85f576d90ff144fba8@epcms5p4> Date: Tue, 27 Mar 2018 17:10:19 +0530 X-CMS-MailID: 20180327114019epcms5p41dec80bebd551f85f576d90ff144fba8 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: REQ_APPROVE X-MTR: 20180327114019epcms5p41dec80bebd551f85f576d90ff144fba8 CMS-TYPE: 105P X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrPJsWRmVeSWpSXmKPExsWy7bCmpu4sy11RBktumVhc3J1qMWf9GjaL L5PesVtc+b2f3WLCwzZ2i/aPe5ktDj98y2rRvHg9m8WKZ/eZLHrmNDFaXN41h83i3pr/rBb3 +xws7r3ZymTx//c5Voute6+yW2zeNJXZ4tDJuYwWsxv7GC3Wbz3A7iDi0XjjBpvH5b5eJo+d s+6yeyzYVOqxZ+JJNo9Nnyaxe7w7d47d48SM3ywe++euYfdYvtPEo2/LKkaP9VuusnicWXCE 3ePzJjmP1/sPMQbwR6XaZKQmpqQWKaTmJeenZOal2yp5B8c7x5uaGRjqGlpamCsp5CXmptoq ufgE6Lpl5gB9raRQlphTChQKSCwuVtK3synKLy1JVcjILy6xVYo2NDTSMzQw1zMyMtIzMY21 MjIFKklIzWjYfJip4DhHRfvK3AbGZRxdjBwcEgImEo2XRbsYuTiEBHYzSlyYdp0FJM4rICjx d4dwFyMnh7BAiETjrWdsILaQgKLEhRlrGEFKhAUMJH5t1QAJswnoSazatYcFxBYRCJXofH6U EWQks8BrVolHx3+zgiQkBHglZrQ/ZYGwpSW2L9/KCGJzCnhL7O7sZ4SIi0r8aYCpEZV4f2w+ VFxEovXeWWYIW1Diwc/dUHEZidWbe1lAlkkINDNKvFjcwgThTGGUWHS8lQ2iylzi/Mn5YN28 Ar4S5491gdksAqoSL6f3QE11kbj79RHYVGYBbYllC18zg3zJLKApsX6XPkSJrMTUU+uYIGxb icM3z7BBlPNJ9P5+wgTz5I55MLaqRMvNDawwD3/++BHqMQ+Jt483MU1gVJqFCOpZSBbPQli8 gJF5FaNkakFxbnpqsWmBYV5quV5xYm5xaV66XnJ+7iZGcOLX8tzBOOuczyFGAQ5GJR7eGRw7 o4RYE8uKK3MPMUpwMCuJ8GYK7ooS4k1JrKxKLcqPLyrNSS0+xGgKDIKJzFKiyfnArJRXEm9o YmlgYmZmbmhgYGmiJM7rGOgSJSSQnliSmp2aWpBaBNPHxMEp1cDYa3ntzhPBFS+m381kvb32 VOgUH4nlk+490r20ITzq0LVlt1mU9SaXHbnG/lP7StCHmH0FjQnSX1ekfY47rO3h9Wry1Ucz ufKUt6p/mBq1oVHL4sjdbU2eW9+fzU+7tzX3o6P7o4UqL7I/9Z/nfzbviPrOky1936dvsuAR 9OpTDO8SS5kebm+9XYmlOCPRUIu5qDgRAKhWf+cSBAAA DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20180326100020epcas5p2b50b7541e66dccf4e49db634e5fe6b41 X-RootMTR: 20180326100020epcas5p2b50b7541e66dccf4e49db634e5fe6b41 References: <20180326125228.1f40abb9a52f3674b1491aea@linux-foundation.org> <1522058304-35934-1-git-send-email-maninder1.s@samsung.com> <20180326141717epcms5p4064a0fd4f594b2ff434f9b05cd1ea5ad@epcms5p4> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1595993933133123096?= X-GMAIL-MSGID: =?utf-8?q?1596094033021245065?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Hi Andrew, >filter_irq_stacks()=C2=A0is=C2=A0too=C2=A0large=C2=A0to=C2=A0be=C2=A0inlin= ed.=0D=0A=C2=A0=0D=0AOk=20we=20are=20thinking=20to=20move=20definations=20i= n=20kernel/stacktrace.c=0D=0Aas=20a=20normal=20global=20function.=0D=0A=C2= =A0=0D=0A=0D=0A>in_irqentry_text()=C2=A0is=C2=A0probably=C2=A0too=C2=A0larg= e=C2=A0to=C2=A0be=C2=A0inlined=C2=A0as=C2=A0well,=C2=A0and=0D=0A>should=C2= =A0return=C2=A0bool.=0D=0A=0D=0AWe=20can=20declare=20it=20as=20static=20fun= citon=20in=20kernel/stacktrace.c=20as=20its=20user=0D=0Ais=20only=20filter_= irq_stacks.=0D=0A=C2=A0=0D=0A>Declarations=C2=A0for=C2=A0__irqentry_text_st= art=C2=A0and=C2=A0friends=C2=A0already=C2=A0exist=C2=A0in=0D=0A>include/asm= -generic/sections.h=C2=A0(and,=C2=A0for=C2=A0some=C2=A0reason,=C2=A0also=C2= =A0in=0D=0A>arch/arm/include/asm/traps.h)=C2=A0and=C2=A0should=C2=A0not=C2= =A0be=C2=A0duplicated=C2=A0in=0D=0A>include/linux/stacktrace.h.=0D=0A=0D=0A= Ok,=20done.=0D=0A=0D=0ASending=20new=20patch=20with=20fixes.=0D=0A=0D=0ATha= nks.=0D=0AManinder=20Singh=0D=0A=0D=0A=0D=0A=0D=0A=C2=A0=0D=0A=C2=A0