From: Linus Torvalds <torvalds@transmeta.com>
To: Luca Barbieri <ldb@ldb.ods.org>
Cc: trond.myklebust@fys.uio.no,
Linux FSdevel <linux-fsdevel@vger.kernel.org>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Initial support for struct vfs_cred [0/1]
Date: Sat, 31 Aug 2002 12:36:04 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.44.0208311235110.1255-100000@home.transmeta.com> (raw)
In-Reply-To: <1030820234.4408.119.camel@ldb>
On 31 Aug 2002, Luca Barbieri wrote:
>
> But aren't credential changes supposed to be infrequent?
>
> If so, isn't it faster to put the fields directly in task_struct, keep a
> separate shared structure and copy them on kernel entry?
But that makes us copy them every time, even though they practically never
change.. Much better to only copy them in the extremely rare cases when
they do change.
Linus
next parent reply other threads:[~2002-08-31 19:36 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1030820234.4408.119.camel@ldb>
2002-08-31 19:36 ` Linus Torvalds [this message]
2002-08-31 19:38 ` [PATCH] Initial support for struct vfs_cred [0/1] Luca Barbieri
2002-08-31 22:30 ` Trond Myklebust
2002-08-31 23:13 ` Luca Barbieri
2002-09-01 13:03 ` Trond Myklebust
2002-09-01 14:10 ` Trond Myklebust
2002-09-01 14:20 ` Luca Barbieri
[not found] ` <1030890022.2145.52.camel@ldb>
2002-09-01 16:40 ` Trond Myklebust
[not found] ` <15730.17171.162970.367575@charged.uio.no>
2002-09-01 18:54 ` Luca Barbieri
2002-09-01 19:40 ` Trond Myklebust
[not found] ` <15730.27952.29723.552617@charged.uio.no>
2002-09-01 21:34 ` Luca Barbieri
[not found] ` <1030916061.2145.344.camel@ldb>
2002-09-01 21:56 ` Trond Myklebust
[not found] ` <15730.36080.987645.452664@charged.uio.no>
2002-09-01 22:50 ` Luca Barbieri
2002-09-01 14:33 ` Luca Barbieri
2002-09-01 16:38 ` Trond Myklebust
2002-09-01 18:42 ` Luca Barbieri
2002-09-01 19:25 ` Trond Myklebust
2002-09-01 21:36 ` Luca Barbieri
2002-09-01 15:15 ` Daniel Phillips
2002-09-01 15:35 ` Luca Barbieri
[not found] <15728.61345.184030.293634@charged.uio.no>
2002-08-31 18:57 ` Luca Barbieri
2002-08-31 19:51 ` Luca Barbieri
2002-08-31 16:32 Trond Myklebust
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