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-rw-r--r--mm/Kconfig.debug15
1 files changed, 4 insertions, 11 deletions
diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
index c57786ad5be9..14e29fe5bfa6 100644
--- a/mm/Kconfig.debug
+++ b/mm/Kconfig.debug
@@ -74,18 +74,11 @@ config PAGE_POISONING
Note that "poison" here is not the same thing as the "HWPoison"
for CONFIG_MEMORY_FAILURE. This is software poisoning only.
- If unsure, say N
+ If you are only interested in sanitization of freed pages without
+ checking the poison pattern on alloc, you can boot the kernel with
+ "init_on_free=1" instead of enabling this.
-config PAGE_POISONING_NO_SANITY
- depends on PAGE_POISONING
- bool "Only poison, don't sanity check"
- help
- Skip the sanity checking on alloc, only fill the pages with
- poison on free. This reduces some of the overhead of the
- poisoning feature.
-
- If you are only interested in sanitization, say Y. Otherwise
- say N.
+ If unsure, say N
config PAGE_POISONING_ZERO
bool "Use zero for poisoning instead of debugging value"