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authorJ. R. Okajima <[email protected]>2024-07-23 16:40:17 +0000
committerAndrew Morton <[email protected]>2024-09-01 20:43:32 -0700
commite0ba72e3a4422c4255fa80191a637d7c65ef4c59 (patch)
tree7c3f9910f8a0afa1cc7313af4cbb30dc1f7862f7
parent8af2caf7307d8002d88c377c58eba8cae75a2109 (diff)
lockdep: upper limit LOCKDEP_CHAINS_BITS
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/ [[email protected]: fix minor checkpatch issues in commit log] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: J. R. Okajima <[email protected]> Signed-off-by: Carlos Llamas <[email protected]> Acked-by: Tetsuo Handa <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Boqun Feng <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Waiman Long <[email protected]> Cc: Will Deacon <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
-rw-r--r--lib/Kconfig.debug2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index bf0995d328b3..a81d452941ce 100644
--- a/lib/Kconfig.debug
+++ b/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.