Messages in this thread | | | Subject | Re: [PATCH v2] core, x86: Add user return notifiers | From | Peter Zijlstra <> | Date | Tue, 22 Sep 2009 20:06:57 +0200 |
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On Tue, 2009-09-22 at 16:32 +0200, Ingo Molnar wrote:
> Would be nice to convert some existing open-coded return-to-user-space > logic to this facility. One such candidate would be lockdep_sys_exit?
I don't really like lockdep_sys_exit() in such a call, lockdep_sys_exit() is currently placed such that it will execute as the last C code before returning to user-space.
Put it any earlier and you've got a window where people can leak a lock to userspace undetected.
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