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authorbibo,mao <bibo.mao@intel.com>2006-10-02 02:17:34 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-02 07:57:16 -0700
commitf2aa85a0ccd90110e76c6375535adc3ae358f971 (patch)
treedc4db8faacd37ec0d09ec719b53b8550cbe0dbc9 /kernel
parent62c27be0dd8144e11bd3ed054a0fb890579925f8 (diff)
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op-kernel-dev-f2aa85a0ccd90110e76c6375535adc3ae358f971.tar.gz
[PATCH] disallow kprobes on notifier_call_chain
When kprobe is re-entered, the re-entered kprobe kernel path will will call atomic_notifier_call_chain function, if this function is kprobed that will incur numerous kprobe recursive fault. This patch disallows kprobes on atomic_notifier_call_chain function. Signed-off-by: bibo, mao <bibo.mao@intel.com> Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sys.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index 2460581..398d579 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -221,7 +221,7 @@ EXPORT_SYMBOL_GPL(atomic_notifier_chain_unregister);
* of the last notifier function called.
*/
-int atomic_notifier_call_chain(struct atomic_notifier_head *nh,
+int __kprobes atomic_notifier_call_chain(struct atomic_notifier_head *nh,
unsigned long val, void *v)
{
int ret;
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