Messages in this thread | | | Subject | Re: [PATCH] x86: Use is_kprobe_fault to better match usage | From | Harvey Harrison <> | Date | Wed, 02 Jan 2008 19:00:00 -0800 |
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On Wed, 2008-01-02 at 21:36 -0500, Masami Hiramatsu wrote: > Hi Harvey, > > Harvey Harrison wrote: > > Currently the notify_page_fault helper is used to test it the page > > fault was caused by a kprobe causing an early return from do_page_fault. > > > > Change the name of the helper to is_kprobe_fault to match the usage and > > remove the preempt_disable/enable pair around kprobe_running() with an > > explicit test for preemption. The idea for this comes from a patch > > by Quentin Barnes to kprobes.c > > Sure, that's right. > However, since other architectures also have notify_page_fault(), > I think all of those code might better be changed same time for > maintainability. >
How about a static inline in linux/kprobes.h with a big comment above about when/why the !preemptible() check is sufficient?
Harvey
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