The following commit has been merged into the locking/core branch of tip: Commit-ID: 88a79e88a97cb9309bb48a472be2bf1316d40adc Gitweb: https://git.kernel.org/tip/88a79e88a97cb9309bb48a472be2bf1316d40adc Author: Carlos Llamas <cmllamas@xxxxxxxxxx> AuthorDate: Thu, 24 Oct 2024 18:36:27 Committer: Boqun Feng <boqun.feng@xxxxxxxxx> CommitterDate: Sun, 15 Dec 2024 11:49:35 -08:00 lockdep: Clarify size for LOCKDEP_*_BITS configs The LOCKDEP_*_BITS configs control the size of internal structures used by lockdep. The size is calculated as a power of two of the configured value (e.g. 16 => 64KB). Update these descriptions to more accurately reflect this, as "Bitsize" can be misleading. Suggested-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> 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: Carlos Llamas <cmllamas@xxxxxxxxxx> Acked-by: Waiman Long <longman@xxxxxxxxxx> Signed-off-by: Boqun Feng <boqun.feng@xxxxxxxxx> Link: https://lore.kernel.org/r/20241024183631.643450-3-cmllamas@xxxxxxxxxx --- lib/Kconfig.debug | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 7635b36..cf2a41d 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1502,7 +1502,7 @@ config LOCKDEP_SMALL bool config LOCKDEP_BITS - int "Bitsize for MAX_LOCKDEP_ENTRIES" + int "Size for MAX_LOCKDEP_ENTRIES (as Nth power of 2)" depends on LOCKDEP && !LOCKDEP_SMALL range 10 24 default 15 @@ -1510,7 +1510,7 @@ config LOCKDEP_BITS Try increasing this value if you hit "BUG: MAX_LOCKDEP_ENTRIES too low!" message. config LOCKDEP_CHAINS_BITS - int "Bitsize for MAX_LOCKDEP_CHAINS" + int "Size for MAX_LOCKDEP_CHAINS (as Nth power of 2)" depends on LOCKDEP && !LOCKDEP_SMALL range 10 21 default 16 @@ -1518,7 +1518,7 @@ config LOCKDEP_CHAINS_BITS Try increasing this value if you hit "BUG: MAX_LOCKDEP_CHAINS too low!" message. config LOCKDEP_STACK_TRACE_BITS - int "Bitsize for MAX_STACK_TRACE_ENTRIES" + int "Size for MAX_STACK_TRACE_ENTRIES (as Nth power of 2)" depends on LOCKDEP && !LOCKDEP_SMALL range 10 26 default 19 @@ -1526,7 +1526,7 @@ config LOCKDEP_STACK_TRACE_BITS Try increasing this value if you hit "BUG: MAX_STACK_TRACE_ENTRIES too low!" message. config LOCKDEP_STACK_TRACE_HASH_BITS - int "Bitsize for STACK_TRACE_HASH_SIZE" + int "Size for STACK_TRACE_HASH_SIZE (as Nth power of 2)" depends on LOCKDEP && !LOCKDEP_SMALL range 10 26 default 14 @@ -1534,7 +1534,7 @@ config LOCKDEP_STACK_TRACE_HASH_BITS Try increasing this value if you need large STACK_TRACE_HASH_SIZE. config LOCKDEP_CIRCULAR_QUEUE_BITS - int "Bitsize for elements in circular_queue struct" + int "Size for elements in circular_queue struct (as Nth power of 2)" depends on LOCKDEP range 10 26 default 12
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