Messages in this thread | | | Subject | [PATCH v3 -tip 0/4] tracing: make a snapshot feature available from userspace | From | Hiraku Toyooka <> | Date | Wed, 19 Dec 2012 16:02:18 +0900 |
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Hi, Steven,
Thank you for your review. I applied your review comments.
These patches depend on the next patch.
tracing: Add a resize function to make one buffer equivalent to another buffer http://lkml.kernel.org/r/20121017025616.2627.91226.stgit@falsita
v2->v3: [1/4] tracing: add checks if tr->buffer is NULL in tracing_reset{_online_cpus} - (new patch) [2/4] tracing: replace static old_tracer with strcmp - (new patch) [3/4] tracing: make a snapshot feature available from userspace - changed snapshot file I/F (removed "snapshot_allocate") - changed CONFIG_TRACER_SNAPSHOT's location and description - changed an integer flag of __tracing_open() to bool - switched to use seq_read() directly for reading snapshot [4/4] tracing: add description of snapshot to Documentation/trace/ftrace.txt - updated documentation of the snapshot
ToDo: - adding "trace_snapshot" kernel parameter to allocate spare buffer on boot.
(v1: https://lkml.org/lkml/2012/10/2/67) (v2: https://lkml.org/lkml/2012/10/16/585)
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Hiraku Toyooka (4): tracing: add checks if tr->buffer is NULL in tracing_reset{_online_cpus} tracing: replace static old_tracer with strcmp tracing: make a snapshot feature available from userspace tracing: add description of snapshot to Documentation/trace/ftrace.txt
Documentation/trace/ftrace.txt | 83 +++++++++++++++++++++ include/linux/ftrace_event.h | 3 + kernel/trace/Kconfig | 10 +++ kernel/trace/trace.c | 158 ++++++++++++++++++++++++++++++++++------ kernel/trace/trace.h | 1 5 files changed, 231 insertions(+), 24 deletions(-)
-- Hiraku TOYOOKA Linux Technology Center Yokohama Research Laboratory Hitachi Ltd.
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