From a8e6f734ce9a79d44ebb296f2a341f435227b34e Mon Sep 17 00:00:00 2001 From: Hitoshi Mitake Date: Sat, 30 Jan 2010 20:55:41 +0900 Subject: [PATCH] Revert "perf record: Intercept all events" This reverts commit f5a2c3dce03621b55f84496f58adc2d1a87ca16f. This patch is required for making "perf lock rec" work. The commit f5a2c3dce0 changes write_event() of builtin-record.c . And changed write_event() sometimes doesn't stop with perf lock rec. Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: [ that commit also causes perf record to not be Ctrl-C-able, and it's concetually wrong to parse the data at record time (unconditionally - even when not needed), as we eventually want to be able to do zero-copy recording, at least for non-archive recordings. ] Signed-off-by: Ingo Molnar --- tools/perf/builtin-record.c | 28 ++++++++++------------------ 1 file changed, 10 insertions(+), 18 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 90345223908c..eea56910b91c 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -113,24 +113,16 @@ static void write_output(void *buf, size_t size) static void write_event(event_t *buf, size_t size) { - size_t processed_size = buf->header.size; - event_t *ev = buf; - - do { - /* - * Add it to the list of DSOs, so that when we finish this - * record session we can pick the available build-ids. - */ - if (ev->header.type == PERF_RECORD_MMAP) { - struct list_head *head = &dsos__user; - if (ev->header.misc == 1) - head = &dsos__kernel; - __dsos__findnew(head, ev->mmap.filename); - } - - ev = ((void *)ev) + ev->header.size; - processed_size += ev->header.size; - } while (processed_size < size); + /* + * Add it to the list of DSOs, so that when we finish this + * record session we can pick the available build-ids. + */ + if (buf->header.type == PERF_RECORD_MMAP) { + struct list_head *head = &dsos__user; + if (buf->mmap.header.misc == 1) + head = &dsos__kernel; + __dsos__findnew(head, buf->mmap.filename); + } write_output(buf, size); }