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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-16 22:09:51 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-16 22:09:51 +0200
commitb3fec0fe35a4ff048484f1408385a27695d4273b (patch)
tree088c23f098421ea681d9976a83aad73d15be1027 /arch/x86/kernel/traps.c
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 (diff)
parentMerge commit 'linus/master' into HEAD (diff)
downloadlinux-b3fec0fe35a4ff048484f1408385a27695d4273b.tar.xz
linux-b3fec0fe35a4ff048484f1408385a27695d4273b.zip
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck: (39 commits) signal: fix __send_signal() false positive kmemcheck warning fs: fix do_mount_root() false positive kmemcheck warning fs: introduce __getname_gfp() trace: annotate bitfields in struct ring_buffer_event net: annotate struct sock bitfield c2port: annotate bitfield for kmemcheck net: annotate inet_timewait_sock bitfields ieee1394/csr1212: fix false positive kmemcheck report ieee1394: annotate bitfield net: annotate bitfields in struct inet_sock net: use kmemcheck bitfields API for skbuff kmemcheck: introduce bitfield API kmemcheck: add opcode self-testing at boot x86: unify pte_hidden x86: make _PAGE_HIDDEN conditional kmemcheck: make kconfig accessible for other architectures kmemcheck: enable in the x86 Kconfig kmemcheck: add hooks for the page allocator kmemcheck: add hooks for page- and sg-dma-mappings kmemcheck: don't track page tables ...
Diffstat (limited to 'arch/x86/kernel/traps.c')
-rw-r--r--arch/x86/kernel/traps.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 1e1e27b7d438..5f935f0d5861 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -45,6 +45,7 @@
#include <linux/edac.h>
#endif
+#include <asm/kmemcheck.h>
#include <asm/stacktrace.h>
#include <asm/processor.h>
#include <asm/debugreg.h>
@@ -534,6 +535,10 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
get_debugreg(condition, 6);
+ /* Catch kmemcheck conditions first of all! */
+ if (condition & DR_STEP && kmemcheck_trap(regs))
+ return;
+
/*
* The processor cleared BTF, so don't mark that we need it set.
*/