uprobes: Move to kernel/events/

Consolidate the uprobes code under kernel/events/, where the various
core kernel event handling routines live.

Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Anton Arapov <anton@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Link: http://lkml.kernel.org/n/tip-biuyhhwohxgbp2vzbap5yr8o@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/Kconfig

@@ -67,7 +67,7 @@ config OPTPROBES
 
 config UPROBES
 	bool "Transparent user-space probes (EXPERIMENTAL)"
-	depends on ARCH_SUPPORTS_UPROBES
+	depends on ARCH_SUPPORTS_UPROBES && PERF_EVENTS
 	default n
 	help
 	  Uprobes is the user-space counterpart to kprobes: they

kernel/Makefile

@@ -107,7 +107,6 @@ obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
 obj-$(CONFIG_PADATA) += padata.o
 obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
 obj-$(CONFIG_JUMP_LABEL) += jump_label.o
-obj-$(CONFIG_UPROBES) += uprobes.o
 
 $(obj)/configs.o: $(obj)/config_data.h
 

kernel/events/Makefile

@@ -3,4 +3,7 @@ CFLAGS_REMOVE_core.o = -pg
 endif
 
 obj-y := core.o ring_buffer.o callchain.o
+
 obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
+obj-$(CONFIG_UPROBES) += uprobes.o
+