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authorIngo Molnar <mingo@elte.hu>2012-02-17 09:27:41 +0100
committerIngo Molnar <mingo@elte.hu>2012-02-17 10:18:07 +0100
commit7b2d81d48a2d8e37efb6ce7b4d5ef58822b30d89 (patch)
tree23987f194dcd91b0ba6d27f7f6e08c178797488e /arch/Kconfig
parent2b144498350860b6ee9dc57ff27a93ad488de5dc (diff)
uprobes/core: Clean up, refactor and improve the code
Make the uprobes code readable to me: - improve the Kconfig text so that a mere mortal gets some idea what CONFIG_UPROBES=y is really about - do trivial renames to standardize around the uprobes_*() namespace - clean up and simplify various code flow details - separate basic blocks of functionality - line break artifact and white space related removal - use standard local varible definition blocks - use vertical spacing to make things more readable - remove unnecessary volatile - restructure comment blocks to make them more uniform and more readable in general Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> 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-ewbwhb8o6navvllsauu7k07p@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/Kconfig')
-rw-r--r--arch/Kconfig14
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 284f5898f526..cca5b545d806 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -66,13 +66,19 @@ config OPTPROBES
depends on !PREEMPT
config UPROBES
- bool "User-space probes (EXPERIMENTAL)"
+ bool "Transparent user-space probes (EXPERIMENTAL)"
depends on ARCH_SUPPORTS_UPROBES
default n
help
- Uprobes enables kernel subsystems to establish probepoints
- in user applications and execute handler functions when
- the probepoints are hit.
+ Uprobes is the user-space counterpart to kprobes: they
+ enable instrumentation applications (such as 'perf probe')
+ to establish unintrusive probes in user-space binaries and
+ libraries, by executing handler functions when the probes
+ are hit by user-space applications.
+
+ ( These probes come in the form of single-byte breakpoints,
+ managed by the kernel and kept transparent to the probed
+ application. )
If in doubt, say "N".