Date: Tue, 25 Dec 2012 17:07:12 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Patrick Dung <patrick_dkt@yahoo.com.hk> Cc: freebsd hackers <freebsd-hackers@freebsd.org>, fs@freebsd.org Subject: Re: About QUOTA support in stock kernel (resent) Message-ID: <20121225150712.GA82219@kib.kiev.ua> In-Reply-To: <1356442470.26290.YahooMailClassic@web190804.mail.sg3.yahoo.com> References: <1356111338.1283.YahooMailClassic@web190806.mail.sg3.yahoo.com> <1356442470.26290.YahooMailClassic@web190804.mail.sg3.yahoo.com>
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--CE+1k2dSO48ffgeK Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Dec 25, 2012 at 09:34:30PM +0800, Patrick Dung wrote: > Hi, >=20 > I would like to know why quota is not enabled in the stock kernel.. >=20 > I remembered that it is not enabled since freebsd 3.5 or freebsd 4 genera= tion. > Now in freebsd 9.0, it still neeed a kernel rebuild. >=20 > I have heard it has performance issue (GIANT lock) about quota. Enabling quota by default would cause small overhead, like one mutex acquir= e, for each inode and block alloc/dealloc, even for mount without quotas enabl= ed. Might be, it is reasonable to just enable it now. Unless somebody provide valid objections and I do not forget, I will do it in a week for HEAD. --CE+1k2dSO48ffgeK Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iQIcBAEBAgAGBQJQ2cEfAAoJEJDCuSvBvK1BczoQAJn1t9gpjqh9fckBwd+wMHr9 TeaTYybuGhhY19nTkmodheyAJsRphKhXVw4zDKYTCkO21HE9HbAx4X+NyLaBB+IN mQNhaP7r//TmuCUR0JSi7Wzincrngm6bT4DjGNTxFi5QbsebB4M848LhBe1HJJBH Ojdt4yO8kMYhRLHqeAydlsnwarvSWfD+fVcaOKW/BmekXvz9osLHnkhd2AwxQsUM YLX+4dB7Gao3WcuUWIr5alGaE3Lo5Ehua8ndI+Fl5GWABpq2Q6V2GnFssvCZONo+ ya0l/Sc8iQTprFE3XK1+4+Iu7Pr9PqWhRxwMGOC4ewHjrZH7CVpriamawqfMbB3v VvaPPf0ICrwmA32hR2Wmvv6l+I+T+iXtMocdhkxYBqU202JIgSlbykNRyYg2ztJ8 DSjEijvzSrX4litK8IMHIzpl6PnQ6jmKtlRTEUTtxdaNxpWmdELN6/TqV0o9ekvU u8WuOfVclmIj9RNjwJYGaNcYh9nmEFvD4FOSU4Ac67knO0mi7lMtsL22vPN8F4vQ WGYw1d2u7AYmInPR8AJkvbc/Phv0ux8oECHWKCcSWsfAmBXyUjpIe/zXEQznKSl7 04xMt2/btNzyktqoe70j1HSZyc5xcQ/KjaEvjE2FFJzoe8OYiBFirZ2JqUh80U90 +5TDEVwdRF47jrAq27bY =AZmI -----END PGP SIGNATURE----- --CE+1k2dSO48ffgeK--
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