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Commit 9a946408 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "lib: stackdepot: Add support to configure STACK_HASH_SIZE"

parents da16bbb5 1c592659

lib/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -623,6 +623,15 @@ config STACKDEPOT 
	bool

	select STACKTRACE



config STACK_HASH_ORDER_SHIFT

	int "stack depot hash size (12 => 4KB, 20 => 1024KB)"

	range 12 20

	default 20

	depends on STACKDEPOT

	help

	 Select the hash size as a power of 2 for the stackdepot hash table.

	 Choose a lower value to reduce the memory impact.



config SBITMAP

	bool

lib/stackdepot.c

+1 −2
Original line number Diff line number Diff line
@@ -141,8 +141,7 @@ static struct stack_record *depot_alloc_stack(unsigned long *entries, int size, 
	return stack;

}



#define STACK_HASH_ORDER 20

#define STACK_HASH_SIZE (1L << STACK_HASH_ORDER)

#define STACK_HASH_SIZE (1L << CONFIG_STACK_HASH_ORDER_SHIFT)

#define STACK_HASH_MASK (STACK_HASH_SIZE - 1)

#define STACK_HASH_SEED 0x9747b28c