From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, Zach Brown <zach.brown@oracle.com>,
Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [RFC/T PATCH 09/12] lockdep: increase MAX_LOCK_DEPTH
Date: Tue, 17 Jul 2007 19:34:37 +0200 [thread overview]
Message-ID: <20070717173758.778235000@chello.nl> (raw)
In-Reply-To: 20070717173428.355522000@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:[~2007-07-17 15:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-17 17:34 [RFC/T PATCH 00/12] lockdep: annotate lock_page Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 01/12] lockdep: annotate journal_start() Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 02/12] mm: trylock_page Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 03/12] mm: remove raw SetPageLocked() usage Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 04/12] mm: remove raw ClearPageLocked() usage Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 05/12] lockdep: add initial lockdep support for lock_page Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 06/12] lockdep: lock_page: handle IO-completions Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 07/12] lockdep: non-recursive validation Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 08/12] lockdep: lock_page: recursion Peter Zijlstra
2007-07-17 17:34 ` Peter Zijlstra [this message]
2007-07-17 17:34 ` [RFC/T PATCH 10/12] lockdep: fs: per file-system type lock_page class Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 11/12] lockdep: lock_page: use per fs-type " Peter Zijlstra
2007-07-17 17:34 ` [RFC/T PATCH 12/12] mm: set_page_mapping() Peter Zijlstra
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