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Date:      Tue, 25 Dec 2012 17:29:06 +0200
From:      Konstantin Belousov <kostikbel@gmail.com>
To:        Eitan Adler <lists@eitanadler.com>
Cc:        Patrick Dung <patrick_dkt@yahoo.com.hk>, freebsd hackers <freebsd-hackers@freebsd.org>, fs@freebsd.org
Subject:   Re: About QUOTA support in stock kernel (resent)
Message-ID:  <20121225152905.GB82219@kib.kiev.ua>
In-Reply-To: <CAF6rxgk=RUYv_Fi5dk1%2BG7D9e4UdQY%2BUVj5hYjE_TD3ToSHsjw@mail.gmail.com>
References:  <1356111338.1283.YahooMailClassic@web190806.mail.sg3.yahoo.com> <1356442470.26290.YahooMailClassic@web190804.mail.sg3.yahoo.com> <20121225150712.GA82219@kib.kiev.ua> <CAF6rxgk=RUYv_Fi5dk1%2BG7D9e4UdQY%2BUVj5hYjE_TD3ToSHsjw@mail.gmail.com>

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On Tue, Dec 25, 2012 at 10:23:26AM -0500, Eitan Adler wrote:
> On 25 December 2012 10:07, Konstantin Belousov <kostikbel@gmail.com> wrot=
e:
> > Enabling quota by default would cause small overhead, like one mutex ac=
quire,
> > for each inode and block alloc/dealloc, even for mount without quotas e=
nabled.
>=20
> Why is this, and can it be avoided (for mounts without quotas)?
Because system should check whether quota is enabled to do the accounting.

>=20
> > Might be, it is reasonable to just enable it now. Unless somebody provi=
de
> > valid objections and I do not forget, I will do it in a week for HEAD.
>=20
>=20
>=20
> --=20
> Eitan Adler

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