From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: lkml <linux-kernel@vger.kernel.org>, linux-arch@vger.kernel.org
Cc: Zach Brown <zach.brown@oracle.com>, Ingo Molnar <mingo@elte.hu>,
akpm@linux-foundation.org,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [PATCH 08/12] lockdep: increase MAX_LOCK_DEPTH
Date: Fri, 28 Sep 2007 09:42:08 +0200 [thread overview]
Message-ID: <20070928080042.298523000@chello.nl> (raw)
In-Reply-To: 20070928074200.436463000@chello.nl
[-- Attachment #1: lockdep-depth.patch --]
[-- Type: text/plain, Size: 638 bytes --]
we can easily hold PAGE_VEC (and more in places) page locks.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
include/linux/sched.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6/include/linux/sched.h
===================================================================
--- linux-2.6.orig/include/linux/sched.h
+++ linux-2.6/include/linux/sched.h
@@ -1246,7 +1246,7 @@ struct task_struct {
int softirq_context;
#endif
#ifdef CONFIG_LOCKDEP
-# define MAX_LOCK_DEPTH 30UL
+# define MAX_LOCK_DEPTH 48UL
u64 curr_chain_key;
int lockdep_depth;
struct held_lock held_locks[MAX_LOCK_DEPTH];
--
next prev parent reply other threads:[~2007-09-28 8:02 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-28 7:42 [PATCH 00/12] various lockdep patches Peter Zijlstra
2007-09-28 7:42 ` [PATCH 01/12] lockdep: syscall exit check Peter Zijlstra
2007-09-28 12:03 ` Heiko Carstens
2007-09-28 12:14 ` Peter Zijlstra
2007-09-28 12:21 ` Heiko Carstens
2007-09-28 7:42 ` [PATCH 02/12] lockdep: i386: connect the sysexit hook Peter Zijlstra
2007-09-28 7:42 ` [PATCH 03/12] lockdep: x86_64: " Peter Zijlstra
2007-09-28 7:42 ` [PATCH 04/12] lockdep: annotate journal_start() Peter Zijlstra
2007-09-28 7:42 ` [PATCH 05/12] mm: trylock_page Peter Zijlstra
2007-09-28 3:11 ` Nick Piggin
2007-09-29 15:01 ` Peter Zijlstra
2007-10-02 8:44 ` Nick Piggin
2007-09-28 7:42 ` [PATCH 06/12] mm: remove raw SetPageLocked() usage Peter Zijlstra
2007-09-28 8:22 ` Christoph Hellwig
2007-09-28 7:42 ` [PATCH 07/12] lockdep: page lock hooks Peter Zijlstra
2007-09-28 7:42 ` Peter Zijlstra [this message]
2007-09-28 7:42 ` [PATCH 09/12] lockdep: add a page lock class per filesystem type Peter Zijlstra
2007-09-28 7:42 ` [PATCH 10/12] lockdep: lock_page: handle IO-completions Peter Zijlstra
2007-09-28 7:42 ` [PATCH 11/12] mm: set_page_mapping() Peter Zijlstra
2007-09-28 7:42 ` [PATCH 12/12] lockdep: enable lock_page lockdep annotation Peter Zijlstra
2007-09-28 11:49 ` [PATCH 00/12] various lockdep patches Heiko Carstens
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