[PATCH] no RLIMIT_NPROC for root, please

From: Jan Rekorajski <baggins@sith.mimuw.edu.pl>
To: torvalds@transmeta.com
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] no RLIMIT_NPROC for root, please
Date: Tue, 28 Nov 2000 21:43:09 +0100	[thread overview]
Message-ID: <20001128214309.F2680@sith.mimuw.edu.pl> (raw)


Why is RLIMIT_NPROC apllied to root(uid 0) processes? It's not kernel job to
prevent admin from shooting him/her self in the foot.

root should be able to do fork() regardless of any limits,
and IMHO the following patch is the right thing.

--- linux/kernel/fork.c~	Tue Sep  5 23:48:59 2000
+++ linux/kernel/fork.c	Sun Nov 26 20:22:20 2000
@@ -560,7 +560,8 @@
 	*p = *current;
 
 	retval = -EAGAIN;
-	if (atomic_read(&p->user->processes) >= p->rlim[RLIMIT_NPROC].rlim_cur)
+	if (p->user->uid &&
+	   (atomic_read(&p->user->processes) >= p->rlim[RLIMIT_NPROC].rlim_cur))
 		goto bad_fork_free;
 	atomic_inc(&p->user->__count);
 	atomic_inc(&p->user->processes);

Jan
-- 
Jan Rękorajski            |  ALL SUSPECTS ARE GUILTY. PERIOD!
baggins<at>mimuw.edu.pl   |  OTHERWISE THEY WOULDN'T BE SUSPECTS, WOULD THEY?
BOFH, type MANIAC         |                   -- TROOPS by Kevin Rubio
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