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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-28 10:44:16 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-28 10:44:16 -0800 |
| commit | 74efe07bc38c538ba7ac40a895910f4f3bee3152 (patch) | |
| tree | ab1eed83938e6f1358a40f3e72b0ae93a91dbd6c /lib/Kconfig.debug | |
| parent | e72e58faa709d554f95431dbafd3374db5ed3fbb (diff) | |
| parent | 318b1dedcd39012624f466d281627553e9fa2570 (diff) | |
| download | linux-74efe07bc38c538ba7ac40a895910f4f3bee3152.tar.bz2 | |
Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
"The main change is the uninlining of large refcount_t APIs, plus a
header dependency fix.
Note that the uninlining allowed us to enable the underflow/overflow
warnings unconditionally and remove the debug Kconfig switch: this
might trigger new warnings in buggy code and turn
crashes/use-after-free bugs into less harmful memory leaks"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/refcounts: Add missing kernel.h header to have UINT_MAX defined
locking/refcounts: Out-of-line everything
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 55735c9bdb75..97d62c2da6c2 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -729,19 +729,6 @@ source "lib/Kconfig.kmemcheck" source "lib/Kconfig.kasan" -config DEBUG_REFCOUNT - bool "Verbose refcount checks" - help - Say Y here if you want reference counters (refcount_t and kref) to - generate WARNs on dubious usage. Without this refcount_t will still - be a saturating counter and avoid Use-After-Free by turning it into - a resource leak Denial-Of-Service. - - Use of this option will increase kernel text size but will alert the - admin of potential abuse. - - If in doubt, say "N". - endmenu # "Memory Debugging" config ARCH_HAS_KCOV |