diff options
| author | Prasanna S. Panchamukhi <prasanna@in.ibm.com> | 2004-10-02 19:14:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-10-02 19:14:25 -0700 |
| commit | 644f6741bec0455fa7d8c780034cc8f01988c3e0 (patch) | |
| tree | d816abf4c13c710f79031481aa97d57690f2b4a5 /include/linux | |
| parent | 5fe20d6e675d7e62df7cfc8385574785727a9e41 (diff) | |
[PATCH] kprobes exception notifier fix
This patch modifies the return value of kprobes exceptions notify handler.
The kprobes exception notifier returns NOTIFY_STOP on handling
notification. This patch helps other debuggers to co-exists with the
Kprobes. Other debuggers registered for exceptions notification must
return NOTIFY_STOP on handling the notification.
Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/notifier.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/notifier.h b/include/linux/notifier.h index 5a8775b9ebbf..900d43e88005 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -29,6 +29,10 @@ extern int notifier_call_chain(struct notifier_block **n, unsigned long val, voi #define NOTIFY_OK 0x0001 /* Suits me */ #define NOTIFY_STOP_MASK 0x8000 /* Don't call further */ #define NOTIFY_BAD (NOTIFY_STOP_MASK|0x0002) /* Bad/Veto action */ +/* + * Clean way to return from the notifier and stop further calls. + */ +#define NOTIFY_STOP (NOTIFY_OK|NOTIFY_STOP_MASK) /* * Declared notifiers so far. I can imagine quite a few more chains |