Messages in this thread | | | Date | Wed, 26 Dec 2018 16:43:42 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH 1/5] perf session: Get rid of file_size variable |
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Em Wed, Dec 26, 2018 at 02:51:28PM +0100, Jiri Olsa escreveu: > It's not needed and removing it makes the code little > more simple for upcoming changes. > > It's safe to replace file_size with data_size, because > perf_data__size value is never smaller than data_offset > + data_size.
This is not applying to my perf/core branch, can you check?
- Arnaldo
> Link: http://lkml.kernel.org/n/tip-ocz7zwwkkx11v0mkxrtcddih@git.kernel.org > Signed-off-by: Jiri Olsa <jolsa@kernel.org> > --- > tools/perf/util/session.c | 12 +++++------- > 1 file changed, 5 insertions(+), 7 deletions(-) > > diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c > index 3972f081a8f4..d6c1d3853f27 100644 > --- a/tools/perf/util/session.c > +++ b/tools/perf/util/session.c > @@ -1818,7 +1818,6 @@ static int __perf_session__process_events(struct perf_session *session) > struct ordered_events *oe = &session->ordered_events; > struct perf_tool *tool = session->tool; > int fd = perf_data__fd(session->data); > - u64 file_size = perf_data__size(session->data); > u64 data_offset = session->header.data_offset; > u64 data_size = session->header.data_size; > u64 head, page_offset, file_offset, file_pos, size; > @@ -1838,14 +1837,13 @@ static int __perf_session__process_events(struct perf_session *session) > if (data_size == 0) > goto out; > > - if (data_offset + data_size < file_size) > - file_size = data_offset + data_size; > + ui_progress__init_size(&prog, data_size, "Processing events..."); > > - ui_progress__init_size(&prog, file_size, "Processing events..."); > + data_size += data_offset; > > mmap_size = MMAP_SIZE; > - if (mmap_size > file_size) { > - mmap_size = file_size; > + if (mmap_size > data_size) { > + mmap_size = data_size; > session->one_mmap = true; > } > > @@ -1910,7 +1908,7 @@ static int __perf_session__process_events(struct perf_session *session) > if (session_done()) > goto out; > > - if (file_pos < file_size) > + if (file_pos < data_size) > goto more; > > out: > -- > 2.17.2
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- Arnaldo
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