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| author | Ingo Molnar <mingo@elte.hu> | 2009-02-20 22:42:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-21 00:09:42 +0100 |
| commit | b18018126f422f5b706fd750373425e10e84b486 (patch) | |
| tree | e3e4954ca44999b25475307afb0653eed39ff63f /arch/x86/mm/fault.c | |
| parent | b814d41f0987c7648d7ed07471258101c95c026b (diff) | |
| download | linux-b18018126f422f5b706fd750373425e10e84b486.tar.gz linux-b18018126f422f5b706fd750373425e10e84b486.tar.bz2 linux-b18018126f422f5b706fd750373425e10e84b486.zip | |
x86, mm, kprobes: fault.c, simplify notify_page_fault()
Impact: cleanup
Remove an #ifdef from notify_page_fault(). The function still
compiles to nothing in the !CONFIG_KPROBES case.
Introduce kprobes_built_in() and kprobe_fault_handler() helpers
to allow this - they returns 0 if !CONFIG_KPROBES.
No code changed:
text data bss dec hex filename
4618 32 24 4674 1242 fault.o.before
4618 32 24 4674 1242 fault.o.after
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mm/fault.c')
| -rw-r--r-- | arch/x86/mm/fault.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index fe99af4b86d9..379beaec6caa 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -68,11 +68,10 @@ static inline int kmmio_fault(struct pt_regs *regs, unsigned long addr) static inline int notify_page_fault(struct pt_regs *regs) { -#ifdef CONFIG_KPROBES int ret = 0; /* kprobe_running() needs smp_processor_id() */ - if (!user_mode_vm(regs)) { + if (kprobes_built_in() && !user_mode_vm(regs)) { preempt_disable(); if (kprobe_running() && kprobe_fault_handler(regs, 14)) ret = 1; @@ -80,9 +79,6 @@ static inline int notify_page_fault(struct pt_regs *regs) } return ret; -#else - return 0; -#endif } /* |