From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Micay Subject: Re: [PATCH] mremap: add MREMAP_NOHOLE flag --resend Date: Wed, 25 Mar 2015 16:54:37 -0400 Message-ID: <5513208D.5070306@gmail.com> References: <20150318153100.5658b741277f3717b52e42d9@linux-foundation.org> <550A5FF8.90504@gmail.com> <550E6D9D.1060507@gmail.com> <5512E0C0.6060406@suse.cz> <55131F70.7020503@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="5KQCGTSHefEHmhHWbhXnsqUeMgPTRsNqc" Return-path: In-Reply-To: <55131F70.7020503@gmail.com> Sender: owner-linux-mm@kvack.org To: Vlastimil Babka , Aliaksey Kandratsenka Cc: Andrew Morton , Shaohua Li , linux-mm@kvack.org, linux-api@vger.kernel.org, Rik van Riel , Hugh Dickins , Mel Gorman , Johannes Weiner , Michal Hocko , Andy Lutomirski , "google-perftools@googlegroups.com" List-Id: linux-api@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --5KQCGTSHefEHmhHWbhXnsqUeMgPTRsNqc Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable > The page fault heuristic is just way too aggressive because there's no > indication of how much memory will be used. I don't think it makes sens= e > to do it without an explicit MADV_NOHUGEPAGE. Collapsing only dense > ranges doesn't have the same risk. Er, without an explicit MADV_HUGEPAGE*. --5KQCGTSHefEHmhHWbhXnsqUeMgPTRsNqc Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJVEyCNAAoJEPnnEuWa9fIqMRgP/1p0X2zMQ6p/sdUyANJOMhmO +Rpfby3GBQ0PYVzJFcZHU98+Gh2Y6DPsrKVi6FJBTGIqY092ui5aEDoiBX72sR4J icrNuxiMvsBbZjf0xAifzLbnejYg8QpLsvJyLEQh5rsbZvLzYJA19yXGIrPsh5Lu k1xnAIWfdrUT5+3/RbnhQ8Y+KNjeeiq3mTNcbd4r9lIkupz+83zEg8IUOzVcYpu5 CSdWntVRBqXgABRbiXZAqjNJNk3KD41QDA/L0O+Ig7pum6YOEUS39UpDGxNo+Hhf 0L9TiIiX0WCEIH7PfLr8B+Wcu4XdVE4ZEHnmFWeBQi4IrlYo0RRsYCjTQpuRaM4Z GQrQ0nV1W0GdJe/IuQIwyoWE3nKv4xUh0OPA3VD+9lFleLMdwXEnVa5yS+CRh5n9 wx8iBt+KWf1oaIi+/nmGdeyH60anlQ/xd5AS6hvtES/hdYkW08ZkgNGVBAhzWgfA doCrNIbNhSvYyfkK48yrREY9AW1TmWizbBSKQfwysAS7llaHrzPjS1QKFHDr8kJx +MZgjLesoTl87/5gLwv8fhZ2NoOebg3xgUemXdWN1u2KsjX1+1BbQWtYd7Mq9cdt 5SJo70qghMAb1Yq49qfONRX1rcA94YNocfMEBDpzibw4SWW02SmlVieKhzo1c46s mBGsGQNrRdrUkSFhhNX3 =rGeu -----END PGP SIGNATURE----- --5KQCGTSHefEHmhHWbhXnsqUeMgPTRsNqc-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org