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Re: [PATCH 00/59] Introduce credentials

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From: David Howells
Subject: Re: [PATCH 00/59] Introduce credentials
Date: Thursday, August 28, 2008 - 2:19 am

Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:


Would it make sense to call synchronise_rcu() from commit_creds() or from
setuid()/setresuid()/setgroups()/etc. to make sure that some user process
doing:

	while (1)
		alter_credentials();

doesn't run the system out of memory by having loads of frees waiting in RCU's
queues because put_cred() uses call_rcu() to defer the destruction.

David
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Messages in current thread:
Re: [PATCH 00/59] Introduce credentials, Alan Cox, (Wed Aug 27, 6:33 am)
[PATCH 00/59] Introduce credentials, David Howells, (Wed Aug 27, 6:45 am)
[PATCH 01/59] CRED: Wrap task credential accesses in the I ..., David Howells, (Wed Aug 27, 6:45 am)
[PATCH 02/59] CRED: Wrap task credential accesses in the M ..., David Howells, (Wed Aug 27, 6:45 am)
[PATCH 03/59] CRED: Wrap task credential accesses in the P ..., David Howells, (Wed Aug 27, 6:45 am)
[PATCH 04/59] CRED: Wrap task credential accesses in the P ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 05/59] CRED: Wrap task credential accesses in the S ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 06/59] CRED: Wrap task credential accesses in the x ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 07/59] CRED: Wrap task credential accesses in the b ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 08/59] CRED: Wrap task credential accesses in the t ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 09/59] CRED: Wrap task credential accesses in the D ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 10/59] CRED: Wrap task credential accesses in the I ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 11/59] CRED: Wrap task credential accesses in video ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 12/59] CRED: Wrap task credential accesses in the n ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 13/59] CRED: Wrap task credential accesses in the U ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 14/59] CRED: Wrap task credential accesses in 9P200 ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 15/59] CRED: Wrap task credential accesses in the A ..., David Howells, (Wed Aug 27, 6:46 am)
[PATCH 16/59] CRED: Wrap task credential accesses in the a ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 17/59] CRED: Wrap task credential accesses in the a ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 18/59] CRED: Wrap task credential accesses in the B ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 19/59] CRED: Wrap task credential accesses in the C ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 20/59] CRED: Wrap task credential accesses in the C ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 21/59] CRED: Wrap task credential accesses in the d ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 22/59] CRED: Wrap task credential accesses in the e ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 23/59] CRED: Wrap task credential accesses in the E ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 24/59] CRED: Wrap task credential accesses in the E ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 25/59] CRED: Wrap task credential accesses in the E ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 26/59] CRED: Wrap task credential accesses in the F ..., David Howells, (Wed Aug 27, 6:47 am)
[PATCH 27/59] CRED: Wrap task credential accesses in the F ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 28/59] CRED: Wrap task credential accesses in the G ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 29/59] CRED: Wrap task credential accesses in the H ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 30/59] CRED: Wrap task credential accesses in the H ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 31/59] CRED: Wrap task credential accesses in the H ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 32/59] CRED: Wrap task credential accesses in the h ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 33/59] CRED: Wrap task credential accesses in the J ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 34/59] CRED: Wrap task credential accesses in the J ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 35/59] CRED: Wrap task credential accesses in the M ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 36/59] CRED: Wrap task credential accesses in the N ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 37/59] CRED: Wrap task credential accesses in the N ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 38/59] CRED: Wrap task credential accesses in the O ..., David Howells, (Wed Aug 27, 6:48 am)
[PATCH 39/59] CRED: Wrap task credential accesses in the O ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 40/59] CRED: Wrap task credential accesses in the R ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 41/59] CRED: Wrap task credential accesses in the R ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 42/59] CRED: Wrap task credential accesses in the S ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 43/59] CRED: Wrap task credential accesses in the S ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 44/59] CRED: Wrap task credential accesses in the U ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 45/59] CRED: Wrap task credential accesses in the U ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 46/59] CRED: Wrap task credential accesses in the U ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 47/59] CRED: Wrap task credential accesses in the X ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 48/59] CRED: Wrap task credential accesses in the f ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 49/59] CRED: Wrap task credential accesses in the S ..., David Howells, (Wed Aug 27, 6:49 am)
[PATCH 50/59] CRED: Wrap task credential accesses in the A ..., David Howells, (Wed Aug 27, 6:50 am)
[PATCH 51/59] CRED: Wrap task credential accesses in the I ..., David Howells, (Wed Aug 27, 6:50 am)
[PATCH 52/59] CRED: Wrap task credential accesses in the n ..., David Howells, (Wed Aug 27, 6:50 am)
[PATCH 53/59] CRED: Wrap task credential accesses in the R ..., David Howells, (Wed Aug 27, 6:50 am)
[PATCH 54/59] CRED: Wrap task credential accesses in the S ..., David Howells, (Wed Aug 27, 6:50 am)
[PATCH 55/59] CRED: Wrap task credential accesses in the U ..., David Howells, (Wed Aug 27, 6:50 am)
[PATCH 56/59] CRED: Wrap task credential accesses in the n ..., David Howells, (Wed Aug 27, 6:50 am)
[PATCH 57/59] CRED: Wrap task credential accesses in the k ..., David Howells, (Wed Aug 27, 6:50 am)
[PATCH 58/59] CRED: Wrap task credential accesses in the c ..., David Howells, (Wed Aug 27, 6:50 am)
[PATCH 59/59] CRED: Wrap task credential accesses in the c ..., David Howells, (Wed Aug 27, 6:50 am)
Re: [PATCH 26/59] CRED: Wrap task credential accesses in t ..., OGAWA Hirofumi, (Wed Aug 27, 7:12 am)
Re: [PATCH 00/59] Introduce credentials, David Howells, (Wed Aug 27, 7:24 am)
Re: [PATCH 34/59] CRED: Wrap task credential accesses in t ..., Dave Kleikamp, (Wed Aug 27, 7:31 am)
Re: [PATCH 45/59] CRED: Wrap task credential accesses in t ..., Jan Kara, (Wed Aug 27, 7:44 am)
Re: [PATCH 01/59] CRED: Wrap task credential accesses in t ..., Artem Bityutskiy, (Wed Aug 27, 7:55 am)
Re: [PATCH 01/59] CRED: Wrap task credential accesses in t ..., David Howells, (Wed Aug 27, 8:24 am)
Re: [PATCH 00/59] Introduce credentials, Alan Cox, (Wed Aug 27, 9:39 am)
Re: [PATCH 10/59] CRED: Wrap task credential accesses in t ..., Karsten Keil, (Wed Aug 27, 10:51 am)
Re: [PATCH 03/59] CRED: Wrap task credential accesses in t ..., Kyle McMartin, (Wed Aug 27, 3:19 pm)
Re: [PATCH 38/59] CRED: Wrap task credential accesses in t ..., Mark Fasheh, (Wed Aug 27, 4:04 pm)
Re: [PATCH 01/59] CRED: Wrap task credential accesses in t ..., Stephen Rothwell, (Wed Aug 27, 4:21 pm)
Re: [PATCH 04/59] CRED: Wrap task credential accesses in t ..., Benjamin Herrenschmidt, (Wed Aug 27, 4:45 pm)
Re: [PATCH 00/59] Introduce credentials, David Howells, (Thu Aug 28, 2:19 am)
Re: [PATCH 00/59] Introduce credentials, Alan Cox, (Thu Aug 28, 2:45 am)
Re: [PATCH 14/59] CRED: Wrap task credential accesses in 9 ..., Eric Van Hensbergen, (Thu Aug 28, 10:59 am)
Re: [PATCH 00/59] Introduce credentials, Paul E. McKenney, (Thu Aug 28, 1:28 pm)
Re: [PATCH 11/59] CRED: Wrap task credential accesses in v ..., Mauro Carvalho Chehab, (Fri Aug 29, 3:32 pm)
Re: [PATCH 09/59] CRED: Wrap task credential accesses in t ..., Dave Airlie, (Mon Sep 1, 6:03 pm)