The quilt patch titled
Subject: lockdep: upper limit LOCKDEP_CHAINS_BITS
has been removed from the -mm tree. Its filename was
lockdep-upper-limit-lockdep_chains_bits.patch
This patch was dropped because it was merged into the mm-nonmm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "J. R. Okajima" <hooanon05g@xxxxxxxxx>
Subject: lockdep: upper limit LOCKDEP_CHAINS_BITS
Date: Tue, 23 Jul 2024 16:40:17 +0000
CONFIG_LOCKDEP_CHAINS_BITS value decides the size of chain_hlocks[] in
kernel/locking/lockdep.c, and it is checked by add_chain_cache() with
BUILD_BUG_ON((1UL << 24) <= ARRAY_SIZE(chain_hlocks));
This patch is just to silence BUILD_BUG_ON().
See also https://lore.kernel.org/all/30795.1620913191@jrobl/
[cmllamas@xxxxxxxxxx: fix minor checkpatch issues in commit log]
Link: https://lkml.kernel.org/r/20240723164018.2489615-1-cmllamas@xxxxxxxxxx
Signed-off-by: J. R. Okajima <hooanon05g@xxxxxxxxx>
Signed-off-by: Carlos Llamas <cmllamas@xxxxxxxxxx>
Acked-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Boqun Feng <boqun.feng@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Waiman Long <longman@xxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/Kconfig.debug | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/Kconfig.debug~lockdep-upper-limit-lockdep_chains_bits
+++ a/lib/Kconfig.debug
@@ -1515,7 +1515,7 @@ config LOCKDEP_BITS
config LOCKDEP_CHAINS_BITS
int "Bitsize for MAX_LOCKDEP_CHAINS"
depends on LOCKDEP && !LOCKDEP_SMALL
- range 10 30
+ range 10 21
default 16
help
Try increasing this value if you hit "BUG: MAX_LOCKDEP_CHAINS too low!" message.
_
Patches currently in -mm which might be from hooanon05g@xxxxxxxxx are
