diff options
| -rw-r--r-- | Documentation/kmemcheck.txt | 21 | ||||
| -rw-r--r-- | arch/x86/mm/kmemcheck/kmemcheck.c | 3 | ||||
| -rw-r--r-- | include/linux/kmemcheck.h | 5 | ||||
| -rw-r--r-- | lib/Kconfig.kmemcheck | 3 |
4 files changed, 8 insertions, 24 deletions
diff --git a/Documentation/kmemcheck.txt b/Documentation/kmemcheck.txt index 3630446..c28f828 100644 --- a/Documentation/kmemcheck.txt +++ b/Documentation/kmemcheck.txt @@ -43,26 +43,7 @@ feature. 1. Downloading ============== -kmemcheck can only be downloaded using git. If you want to write patches -against the current code, you should use the kmemcheck development branch of -the tip tree. It is also possible to use the linux-next tree, which also -includes the latest version of kmemcheck. - -Assuming that you've already cloned the linux-2.6.git repository, all you -have to do is add the -tip tree as a remote, like this: - - $ git remote add tip git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git - -To actually download the tree, fetch the remote: - - $ git fetch tip - -And to check out a new local branch with the kmemcheck code: - - $ git checkout -b kmemcheck tip/kmemcheck - -General instructions for the -tip tree can be found here: -http://people.redhat.com/mingo/tip.git/readme.txt +As of version 2.6.31-rc1, kmemcheck is included in the mainline kernel. 2. Configuring and compiling diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c index 528bf95..8cc1833 100644 --- a/arch/x86/mm/kmemcheck/kmemcheck.c +++ b/arch/x86/mm/kmemcheck/kmemcheck.c @@ -225,9 +225,6 @@ void kmemcheck_hide(struct pt_regs *regs) BUG_ON(!irqs_disabled()); - if (data->balance == 0) - return; - if (unlikely(data->balance != 1)) { kmemcheck_show_all(); kmemcheck_error_save_bug(regs); diff --git a/include/linux/kmemcheck.h b/include/linux/kmemcheck.h index dc2fd54..c800660 100644 --- a/include/linux/kmemcheck.h +++ b/include/linux/kmemcheck.h @@ -144,7 +144,10 @@ static inline bool kmemcheck_is_obj_initialized(unsigned long addr, size_t size) int name##_end[0]; #define kmemcheck_annotate_bitfield(ptr, name) \ - do if (ptr) { \ + do { \ + if (!ptr) \ + break; \ + \ int _n = (long) &((ptr)->name##_end) \ - (long) &((ptr)->name##_begin); \ BUILD_BUG_ON(_n < 0); \ diff --git a/lib/Kconfig.kmemcheck b/lib/Kconfig.kmemcheck index 603c81b..846e039 100644 --- a/lib/Kconfig.kmemcheck +++ b/lib/Kconfig.kmemcheck @@ -1,6 +1,8 @@ config HAVE_ARCH_KMEMCHECK bool +if HAVE_ARCH_KMEMCHECK + menuconfig KMEMCHECK bool "kmemcheck: trap use of uninitialized memory" depends on DEBUG_KERNEL @@ -89,3 +91,4 @@ config KMEMCHECK_BITOPS_OK accesses where not all the bits are initialized at the same time. This may also hide some real bugs. +endif |