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Wed, 13 Nov 2019 22:07:44 +0000 (UTC) Received: from [IPv6:::1] (ovpn04.gateway.prod.ext.phx2.redhat.com [10.5.9.4]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5AD8075E4A; Wed, 13 Nov 2019 22:07:44 +0000 (UTC) Subject: Re: [PATCH 0/2 V2] avoid softlockups in various s_inodes iterators From: Eric Sandeen To: linux-fsdevel@vger.kernel.org Cc: viro@zeniv.linux.org.uk References: <1573159954-27846-1-git-send-email-sandeen@redhat.com> Autocrypt: addr=sandeen@redhat.com; prefer-encrypt=mutual; keydata= mQINBE6x99QBEADMR+yNFBc1Y5avoUhzI/sdR9ANwznsNpiCtZlaO4pIWvqQJCjBzp96cpCs nQZV32nqJBYnDpBDITBqTa/EF+IrHx8gKq8TaSBLHUq2ju2gJJLfBoL7V3807PQcI18YzkF+ WL05ODFQ2cemDhx5uLghHEeOxuGj+1AI+kh/FCzMedHc6k87Yu2ZuaWF+Gh1W2ix6hikRJmQ vj5BEeAx7xKkyBhzdbNIbbjV/iGi9b26B/dNcyd5w2My2gxMtxaiP7q5b6GM2rsQklHP8FtW ZiYO7jsg/qIppR1C6Zr5jK1GQlMUIclYFeBbKggJ9mSwXJH7MIftilGQ8KDvNuV5AbkronGC sEEHj2khs7GfVv4pmUUHf1MRIvV0x3WJkpmhuZaYg8AdJlyGKgp+TQ7B+wCjNTdVqMI1vDk2 BS6Rg851ay7AypbCPx2w4d8jIkQEgNjACHVDU89PNKAjScK1aTnW+HNUqg9BliCvuX5g4z2j gJBs57loTWAGe2Ve3cMy3VoQ40Wt3yKK0Eno8jfgzgb48wyycINZgnseMRhxc2c8hd51tftK LKhPj4c7uqjnBjrgOVaVBupGUmvLiePlnW56zJZ51BR5igWnILeOJ1ZIcf7KsaHyE6B1mG+X dmYtjDhjf3NAcoBWJuj8euxMB6TcQN2MrSXy5wSKaw40evooGwARAQABtCRFcmljIFIuIFNh bmRlZW4gPHNhbmRlZW5AcmVkaGF0LmNvbT6JAjgEEwECACIFAk6yrl4CGwMGCwkIBwMCBhUI AgkKCwQWAgMBAh4BAheAAAoJECCuFpLhPd7gh2kP/A6CRmIF2MSttebyBk+6Ppx47ct+Kcmp YokwfI9iahSPiQ+LmmBZE+PMYesE+8+lsSiAvzz6YEXsfWMlGzHiqiE76d2xSOYVPO2rX7xl 4T2J98yZlYrjMDmQ6gpFe0ZBpVl45CFUYkBaeulEMspzaYLH6zGsPjgfVJyYnW94ZXLWcrST ixBPJcDtk4j6jrbY3K8eVFimK+RSq6CqZgUZ+uaDA/wJ4kHrYuvM3QPbsHQr/bYSNkVAFxgl G6a4CSJ4w70/dT9FFb7jzj30nmaBmDFcuC+xzecpcflaLvuFayuBJslMp4ebaL8fglvntWsQ ZM8361Ckjt82upo2JRYiTrlE9XiSEGsxW3EpdFT3vUmIlgY0/Xo5PGv3ySwcFucRUk1Q9j+Z X4gCaX5sHpQM03UTaDx4jFdGqOLnTT1hfrMQZ3EizVbnQW9HN0snm9lD5P6O1dxyKbZpevfW BfwdQ35RXBbIKDmmZnwJGJgYl5Bzh5DlT0J7oMVOzdEVYipWx82wBqHVW4I1tPunygrYO+jN n+BLwRCOYRJm5BANwYx0MvWlm3Mt3OkkW2pbX+C3P5oAcxrflaw3HeEBi/KYkygxovWl93IL TsW03R0aNcI6bSdYR/68pL4ELdx7G/SLbaHf28FzzUFjRvN55nBoMePOFo1O6KtkXXQ4GbXV ebdvuQINBE6x99QBEADQOtSJ9OtdDOrE7xqJA4Lmn1PPbk2n9N+m/Wuh87AvxU8Ey8lfg/mX VXbJ3vQxlFRWCOYLJ0TLEsnobZjIc7YhlMRqNRjRSn5vcSs6kulnCG+BZq2OJ+mPpsFIq4Nd 5OGoV2SmEXmQCaB9UAiRqflLFYrf5LRXYX+jGy0hWIGEyEPAjpexGWdUGgsthwSKXEDYWVFR Lsw5kaZEmRG10YPmShVlIzrFVlBKZ8QFphD9YkEYlB0/L3ieeUBWfeUff43ule81S4IZX63h hS3e0txG4ilgEI5aVztumB4KmzldrR0hmAnwui67o4Enm9VeM/FOWQV1PRLT+56sIbnW7ynq wZEudR4BQaRB8hSoZSNbasdpeBY2/M5XqLe1/1hqJcqXdq8Vo1bWQoGzRPkzVyeVZlRS2XqT TiXPk6Og1j0n9sbJXcNKWRuVdEwrzuIthBKtxXpwXP09GXi9bUsZ9/fFFAeeB43l8/HN7xfk 0TeFv5JLDIxISonGFVNclV9BZZbR1DE/sc3CqY5ZgX/qb7WAr9jaBjeMBCexZOu7hFVNkacr AQ+Y4KlJS+xNFexUeCxYnvSp3TI5KNa6K/hvy+YPf5AWDK8IHE8x0/fGzE3l62F4sw6BHBak ufrI0Wr/G2Cz4QKAb6BHvzJdDIDuIKzm0WzY6sypXmO5IwaafSTElQARAQABiQIfBBgBAgAJ BQJOsffUAhsMAAoJECCuFpLhPd7gErAP/Rk46ZQ05kJI4sAyNnHea1i2NiB9Q0qLSSJg+94a hFZOpuKzxSK0+02sbhfGDMs6KNJ04TNDCR04in9CdmEY2ywx6MKeyW4rQZB35GQVVY2ZxBPv yEF4ZycQwBdkqrtuQgrO9zToYWaQxtf+ACXoOI0a/RQ0Bf7kViH65wIllLICnewD738sqPGd N51fRrKBcDquSlfRjQW83/11+bjv4sartYCoE7JhNTcTr/5nvZtmgb9wbsA0vFw+iiUs6tTj eioWcPxDBw3nrLhV8WPf+MMXYxffG7i/Y6OCVWMwRgdMLE/eanF6wYe6o6K38VH6YXQw/0kZ +PrH5uP/0kwG0JbVtj9o94x08ZMm9eMa05VhuUZmtKNdGfn75S7LfoK+RyuO7OJIMb4kR7Eb FzNbA3ias5BaExPknJv7XwI74JbEl8dpheIsRbt0jUDKcviOOfhbQxKJelYNTD5+wE4+TpqH XQLj5HUlzt3JSwqSwx+++FFfWFMheG2HzkfXrvTpud5NrJkGGVn+ErXy6pNf6zSicb+bUXe9 i92UTina2zWaaLEwXspqM338TlFC2JICu8pNt+wHpPCjgy2Ei4u5/4zSYjiA+X1I+V99YJhU +FpT2jzfLUoVsP/6WHWmM/tsS79i50G/PsXYzKOHj/0ZQCKOsJM14NMMCC8gkONe4tek Message-ID: Date: Wed, 13 Nov 2019 16:07:43 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <1573159954-27846-1-git-send-email-sandeen@redhat.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-MC-Unique: NCIvaSCmNnC48D5WJHn_Ew-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On 11/7/19 2:52 PM, Eric Sandeen wrote: > 2 patches to make sure we either schedule in an s_inodes walking > loop, or do our best to limit the size of the walk, to avoid soft > lockups. >=20 > V2 to fix inexplicable patch mangling >=20 > Thanks, > -Eric >=20 Al, ping on this? Thanks, -Eric